diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-30 21:01:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-30 21:01:36 -0700 |
| commit | bad60e6f259a01cf9f29a1ef8d435ab6c60b2de9 (patch) | |
| tree | c9aaa8166735659761239c117af2b11b022bc6cb | |
| parent | dd0f0cf58af70dc9267409f113bea772d57f675c (diff) | |
| parent | 719dbb2df78fc9a40e28392b07cd715bfc5a665c (diff) | |
Merge tag 'powerpc-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights:
- PowerNV PCI hotplug support.
- Lots more Power9 support.
- eBPF JIT support on ppc64le.
- Lots of cxl updates.
- Boot code consolidation.
Bug fixes:
- Fix spin_unlock_wait() from Boqun Feng
- Fix stack pointer corruption in __tm_recheckpoint() from Michael
Neuling
- Fix multiple bugs in memory_hotplug_max() from Bharata B Rao
- mm: Ensure "special" zones are empty from Oliver O'Halloran
- ftrace: Separate the heuristics for checking call sites from
Michael Ellerman
- modules: Never restore r2 for a mprofile-kernel style mcount() call
from Michael Ellerman
- Fix endianness when reading TCEs from Alexey Kardashevskiy
- start rtasd before PCI probing from Greg Kurz
- PCI: rpaphp: Fix slot registration for multiple slots under a PHB
from Tyrel Datwyler
- powerpc/mm: Add memory barrier in __hugepte_alloc() from Sukadev
Bhattiprolu
Cleanups & fixes:
- Drop support for MPIC in pseries from Rashmica Gupta
- Define and use PPC64_ELF_ABI_v2/v1 from Michael Ellerman
- Remove unused symbols in asm-offsets.c from Rashmica Gupta
- Fix SRIOV not building without EEH enabled from Russell Currey
- Remove kretprobe_trampoline_holder from Thiago Jung Bauermann
- Reduce log level of PCI I/O space warning from Benjamin
Herrenschmidt
- Add array bounds checking to crash_shutdown_handlers from Suraj
Jitindar Singh
- Avoid -maltivec when using clang integrated assembler from Anton
Blanchard
- Fix array overrun in ppc_rtas() syscall from Andrew Donnellan
- Fix error return value in cmm_mem_going_offline() from Rasmus
Villemoes
- export cpu_to_core_id() from Mauricio Faria de Oliveira
- Remove old symbols from defconfigs from Andrew Donnellan
- Update obsolete comments in setup_32.c about entry conditions from
Benjamin Herrenschmidt
- Add comment explaining the purpose of setup_kdump_trampoline() from
Benjamin Herrenschmidt
- Merge the RELOCATABLE config entries for ppc32 and ppc64 from Kevin
Hao
- Remove RELOCATABLE_PPC32 from Kevin Hao
- Fix .long's in tlb-radix.c to more meaningful from Balbir Singh
Minor cleanups & fixes:
- Andrew Donnellan, Anna-Maria Gleixner, Anton Blanchard, Benjamin
Herrenschmidt, Bharata B Rao, Christophe Leroy, Colin Ian King,
Geliang Tang, Greg Kurz, Madhavan Srinivasan, Michael Ellerman,
Michael Ellerman, Stephen Rothwell, Stewart Smith.
Freescale updates from Scott:
- "Highlights include more 8xx optimizations, device tree updates,
and MVME7100 support."
PowerNV PCI hotplug from Gavin Shan:
- PCI: Add pcibios_setup_bridge()
- Override pcibios_setup_bridge()
- Remove PCI_RESET_DELAY_US
- Move pnv_pci_ioda_setup_opal_tce_kill() around
- Increase PE# capacity
- Allocate PE# in reverse order
- Create PEs in pcibios_setup_bridge()
- Setup PE for root bus
- Extend PCI bridge resources
- Make pnv_ioda_deconfigure_pe() visible
- Dynamically release PE
- Update bridge windows on PCI plug
- Delay populating pdn
- Support PCI slot ID
- Use PCI slot reset infrastructure
- Introduce pnv_pci_get_slot_id()
- Functions to get/set PCI slot state
- PCI/hotplug: PowerPC PowerNV PCI hotplug driver
- Print correct PHB type names
Power9 idle support from Shreyas B. Prabhu:
- set power_save func after the idle states are initialized
- Use PNV_THREAD_WINKLE macro while requesting for winkle
- make hypervisor state restore a function
- Rename idle_power7.S to idle_book3s.S
- Rename reusable idle functions to hardware agnostic names
- Make pnv_powersave_common more generic
- abstraction for saving SPRs before entering deep idle states
- Add platform support for stop instruction
- cpuidle/powernv: Use CPUIDLE_STATE_MAX instead of MAX_POWERNV_IDLE_STATES
- cpuidle/powernv: cleanup cpuidle-powernv.c
- cpuidle/powernv: Add support for POWER ISA v3 idle states
- Use deepest stop state when cpu is offlined
Power9 PMU from Madhavan Srinivasan:
- factor out power8 pmu macros and defines
- factor out power8 pmu functions
- factor out power8 __init_pmu code
- Add power9 event list macros for generic and cache events
- Power9 PMU support
- Export Power9 generic and cache events to sysfs
Power9 preliminary interrupt & PCI support from Benjamin Herrenschmidt:
- Add XICS emulation APIs
- Move a few exception common handlers to make room
- Add support for HV virtualization interrupts
- Add mechanism to force a replay of interrupts
- Add ICP OPAL backend
- Discover IODA3 PHBs
- pci: Remove obsolete SW invalidate
- opal: Add real mode call wrappers
- Rename TCE invalidation calls
- Remove SWINV constants and obsolete TCE code
- Rework accessing the TCE invalidate register
- Fallback to OPAL for TCE invalidations
- Use the device-tree to get available range of M64's
- Check status of a PHB before using it
- pci: Don't try to allocate resources that will be reassigned
Other Power9:
- Send SIGBUS on unaligned copy and paste from Chris Smart
- Large Decrementer support from Oliver O'Halloran
- Load Monitor Register Support from Jack Miller
Performance improvements from Anton Blanchard:
- Avoid load hit store in __giveup_fpu() and __giveup_altivec()
- Avoid load hit store in setup_sigcontext()
- Remove assembly versions of strcpy, strcat, strlen and strcmp
- Align hot loops of some string functions
eBPF JIT from Naveen N. Rao:
- Fix/enhance 32-bit Load Immediate implementation
- Optimize 64-bit Immediate loads
- Introduce rotate immediate instructions
- A few cleanups
- Isolate classic BPF JIT specifics into a separate header
- Implement JIT compiler for extended BPF
Operator Panel driver from Suraj Jitindar Singh:
- devicetree/bindings: Add binding for operator panel on FSP machines
- Add inline function to get rc from an ASYNC_COMP opal_msg
- Add driver for operator panel on FSP machines
Sparse fixes from Daniel Axtens:
- make some things static
- Introduce asm-prototypes.h
- Include headers containing prototypes
- Use #ifdef __BIG_ENDIAN__ #else for REG_BYTE
- kvm: Clarify __user annotations
- Pass endianness to sparse
- Make ppc_md.{halt, restart} __noreturn
MM fixes & cleanups from Aneesh Kumar K.V:
- radix: Update LPCR HR bit as per ISA
- use _raw variant of page table accessors
- Compile out radix related functions if RADIX_MMU is disabled
- Clear top 16 bits of va only on older cpus
- Print formation regarding the the MMU mode
- hash: Update SDR1 size encoding as documented in ISA 3.0
- radix: Update PID switch sequence
- radix: Update machine call back to support new HCALL.
- radix: Add LPID based tlb flush helpers
- radix: Add a kernel command line to disable radix
- Cleanup LPCR defines
Boot code consolidation from Benjamin Herrenschmidt:
- Move epapr_paravirt_early_init() to early_init_devtree()
- cell: Don't use flat device-tree after boot
- ge_imp3a: Don't use the flat device-tree after boot
- mpc85xx_ds: Don't use the flat device-tree after boot
- mpc85xx_rdb: Don't use the flat device-tree after boot
- Don't test for machine type in rtas_initialize()
- Don't test for machine type in smp_setup_cpu_maps()
- dt: Add of_device_compatible_match()
- Factor do_feature_fixup calls
- Move 64-bit feature fixup earlier
- Move 64-bit memory reserves to setup_arch()
- Use a cachable DART
- Move FW feature probing out of pseries probe()
- Put exception configuration in a common place
- Remove early allocation of the SMU command buffer
- Move MMU backend selection out of platform code
- pasemi: Remove IOBMAP allocation from platform probe()
- mm/hash: Don't use machine_is() early during boot
- Don't test for machine type to detect HEA special case
- pmac: Remove spurrious machine type test
- Move hash table ops to a separate structure
- Ensure that ppc_md is empty before probing for machine type
- Move 64-bit probe_machine() to later in the boot process
- Move 32-bit probe() machine to later in the boot process
- Get rid of ppc_md.init_early()
- Move the boot time info banner to a separate function
- Move setting of {i,d}cache_bsize to initialize_cache_info()
- Move the content of setup_system() to setup_arch()
- Move cache info inits to a separate function
- Re-order the call to smp_setup_cpu_maps()
- Re-order setup_panic()
- Make a few boot functions __init
- Merge 32-bit and 64-bit setup_arch()
Other new features:
- tty/hvc: Use IRQF_SHARED for OPAL hvc consoles from Sam Mendoza-Jonas
- tty/hvc: Use opal irqchip interface if available from Sam Mendoza-Jonas
- powerpc: Add module autoloading based on CPU features from Alastair D'Silva
- crypto: vmx - Convert to CPU feature based module autoloading from Alastair D'Silva
- Wake up kopald polling thread before waiting for events from Benjamin Herrenschmidt
- xmon: Dump ISA 2.06 SPRs from Michael Ellerman
- xmon: Dump ISA 2.07 SPRs from Michael Ellerman
- Add a parameter to disable 1TB segs from Oliver O'Halloran
- powerpc/boot: Add OPAL console to epapr wrappers from Oliver O'Halloran
- Assign fixed PHB number based on device-tree properties from Guilherme G. Piccoli
- pseries: Add pseries hotplug workqueue from John Allen
- pseries: Add support for hotplug interrupt source from John Allen
- pseries: Use kernel hotplug queue for PowerVM hotplug events from John Allen
- pseries: Move property cloning into its own routine from Nathan Fontenot
- pseries: Dynamic add entires to associativity lookup array from Nathan Fontenot
- pseries: Auto-online hotplugged memory from Nathan Fontenot
- pseries: Remove call to memblock_add() from Nathan Fontenot
cxl:
- Add set and get private data to context struct from Michael Neuling
- make base more explicitly non-modular from Paul Gortmaker
- Use for_each_compatible_node() macro from Wei Yongjun
- Frederic Barrat
- Abstract the differences between the PSL and XSL
- Make vPHB device node match adapter's
- Philippe Bergheaud
- Add mechanism for delivering AFU driver specific events
- Ignore CAPI adapters misplaced in switched slots
- Refine slice error debug messages
- Andrew Donnellan
- static-ify variables to fix sparse warnings
- PCI/hotplug: pnv_php: export symbols and move struct types needed by cxl
- PCI/hotplug: pnv_php: handle OPAL_PCI_SLOT_OFFLINE power state
- Add cxl_check_and_switch_mode() API to switch bi-modal cards
- remove dead Kconfig options
- fix potential NULL dereference in free_adapter()
- Ian Munsie
- Update process element after allocating interrupts
- Add support for CAPP DMA mode
- Fix allowing bogus AFU descriptors with 0 maximum processes
- Fix allocating a minimum of 2 pages for the SPA
- Fix bug where AFU disable operation had no effect
- Workaround XSL bug that does not clear the RA bit after a reset
- Fix NULL pointer dereference on kernel contexts with no AFU interrupts
- powerpc/powernv: Split cxl code out into a separate file
- Add cxl_slot_is_supported API
- Enable bus mastering for devices using CAPP DMA mode
- Move cxl_afu_get / cxl_afu_put to base
- Allow a default context to be associated with an external pci_dev
- Do not create vPHB if there are no AFU configuration records
- powerpc/powernv: Add support for the cxl kernel api on the real phb
- Add support for using the kernel API with a real PHB
- Add kernel APIs to get & set the max irqs per context
- Add preliminary workaround for CX4 interrupt limitation
- Add support for interrupts on the Mellanox CX4
- Workaround PE=0 hardware limitation in Mellanox CX4
- powerpc/powernv: Fix pci-cxl.c build when CONFIG_MODULES=n
selftests:
- Test unaligned copy and paste from Chris Smart
- Load Monitor Register Tests from Jack Miller
- Cyril Bur
- exec() with suspended transaction
- Use signed long to read perf_event_paranoid
- Fix usage message in context_switch
- Fix generation of vector instructions/types in context_switch
- Michael Ellerman
- Use "Delta" rather than "Error" in normal output
- Import Anton's mmap & futex micro benchmarks
- Add a test for PROT_SAO"
* tag 'powerpc-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (263 commits)
powerpc/mm: Parenthesise IS_ENABLED() in if condition
tty/hvc: Use opal irqchip interface if available
tty/hvc: Use IRQF_SHARED for OPAL hvc consoles
selftests/powerpc: exec() with suspended transaction
powerpc: Improve comment explaining why we modify VRSAVE
powerpc/mm: Drop unused externs for hpte_init_beat[_v3]()
powerpc/mm: Rename hpte_init_lpar() and move the fallback to a header
powerpc/mm: Fix build break when PPC_NATIVE=n
crypto: vmx - Convert to CPU feature based module autoloading
powerpc: Add module autoloading based on CPU features
powerpc/powernv/ioda: Fix endianness when reading TCEs
powerpc/mm: Add memory barrier in __hugepte_alloc()
powerpc/modules: Never restore r2 for a mprofile-kernel style mcount() call
powerpc/ftrace: Separate the heuristics for checking call sites
powerpc: Merge 32-bit and 64-bit setup_arch()
powerpc/64: Make a few boot functions __init
powerpc: Re-order setup_panic()
powerpc: Re-order the call to smp_setup_cpu_maps()
powerpc/32: Move cache info inits to a separate function
powerpc/64: Move the content of setup_system() to setup_arch()
...
532 files changed, 11335 insertions, 4123 deletions
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/network.txt b/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/network.txt deleted file mode 100644 index 29b28b8f9a89..000000000000 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/network.txt +++ /dev/null @@ -1,43 +0,0 @@ -* Network - -Currently defined compatibles: -- fsl,cpm1-scc-enet -- fsl,cpm2-scc-enet -- fsl,cpm1-fec-enet -- fsl,cpm2-fcc-enet (third resource is GFEMR) -- fsl,qe-enet - -Example: - - ethernet@11300 { - compatible = "fsl,mpc8272-fcc-enet", - "fsl,cpm2-fcc-enet"; - reg = <11300 20 8400 100 11390 1>; - local-mac-address = [ 00 00 00 00 00 00 ]; - interrupts = <20 8>; - interrupt-parent = <&PIC>; - phy-handle = <&PHY0>; - fsl,cpm-command = <12000300>; - }; - -* MDIO - -Currently defined compatibles: -fsl,pq1-fec-mdio (reg is same as first resource of FEC device) -fsl,cpm2-mdio-bitbang (reg is port C registers) - -Properties for fsl,cpm2-mdio-bitbang: -fsl,mdio-pin : pin of port C controlling mdio data -fsl,mdc-pin : pin of port C controlling mdio clock - -Example: - mdio@10d40 { - compatible = "fsl,mpc8272ads-mdio-bitbang", - "fsl,mpc8272-mdio-bitbang", - "fsl,cpm2-mdio-bitbang"; - reg = <10d40 14>; - #address-cells = <1>; - #size-cells = <0>; - fsl,mdio-pin = <12>; - fsl,mdc-pin = <13>; - }; diff --git a/Documentation/devicetree/bindings/powerpc/opal/oppanel-opal.txt b/Documentation/devicetree/bindings/powerpc/opal/oppanel-opal.txt new file mode 100644 index 000000000000..dffb79108b61 --- /dev/null +++ b/Documentation/devicetree/bindings/powerpc/opal/oppanel-opal.txt @@ -0,0 +1,14 @@ +IBM OPAL Operator Panel Binding +------------------------------- + +Required properties: +- compatible : Should be "ibm,opal-oppanel". +- #lines : Number of lines on the operator panel e.g. <0x2>. +- #length : Number of characters per line of the operator panel e.g. <0x10>. + +Example: + oppanel { + compatible = "ibm,opal-oppanel"; + #lines = <0x2>; + #length = <0x10>; + }; diff --git a/Documentation/devicetree/bindings/rtc/rtc-opal.txt b/Documentation/devicetree/bindings/rtc/rtc-opal.txt index a1734e5cb75b..2340938cd0f5 100644 --- a/Documentation/devicetree/bindings/rtc/rtc-opal.txt +++ b/Documentation/devicetree/bindings/rtc/rtc-opal.txt @@ -2,7 +2,7 @@ IBM OPAL real-time clock ------------------------ Required properties: -- comapatible: Should be "ibm,opal-rtc" +- compatible: Should be "ibm,opal-rtc" Optional properties: - wakeup-source: Decides if the wakeup is supported or not diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/cpm.txt index 160c752484b4..160c752484b4 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/cpm.txt diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/brg.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/cpm/brg.txt index 4c7d45eaf025..4c7d45eaf025 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/brg.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/cpm/brg.txt diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/i2c.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/cpm/i2c.txt index 87bc6048667e..87bc6048667e 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/i2c.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/cpm/i2c.txt diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/pic.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/cpm/pic.txt index 8e3ee1681618..8e3ee1681618 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/pic.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/cpm/pic.txt diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/usb.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/cpm/usb.txt index 74bfda4bb824..74bfda4bb824 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/cpm/usb.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/cpm/usb.txt diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/gpio.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/gpio.txt index 349f79fd7076..349f79fd7076 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/gpio.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/gpio.txt diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/network.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/network.txt new file mode 100644 index 000000000000..03c741602c6d --- /dev/null +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/network.txt @@ -0,0 +1,124 @@ +* Network + +Currently defined compatibles: +- fsl,cpm1-scc-enet +- fsl,cpm2-scc-enet +- fsl,cpm1-fec-enet +- fsl,cpm2-fcc-enet (third resource is GFEMR) +- fsl,qe-enet + +Example: + + ethernet@11300 { + compatible = "fsl,mpc8272-fcc-enet", + "fsl,cpm2-fcc-enet"; + reg = <11300 20 8400 100 11390 1>; + local-mac-address = [ 00 00 00 00 00 00 ]; + interrupts = <20 8>; + interrupt-parent = <&PIC>; + phy-handle = <&PHY0>; + fsl,cpm-command = <12000300>; + }; + +* MDIO + +Currently defined compatibles: +fsl,pq1-fec-mdio (reg is same as first resource of FEC device) +fsl,cpm2-mdio-bitbang (reg is port C registers) + +Properties for fsl,cpm2-mdio-bitbang: +fsl,mdio-pin : pin of port C controlling mdio data +fsl,mdc-pin : pin of port C controlling mdio clock + +Example: + mdio@10d40 { + compatible = "fsl,mpc8272ads-mdio-bitbang", + "fsl,mpc8272-mdio-bitbang", + "fsl,cpm2-mdio-bitbang"; + reg = <10d40 14>; + #address-cells = <1>; + #size-cells = <0>; + fsl,mdio-pin = <12>; + fsl,mdc-pin = <13>; + }; + +* HDLC + +Currently defined compatibles: +- fsl,ucc-hdlc + +Properties for fsl,ucc-hdlc: +- rx-clock-name +- tx-clock-name + Usage: required + Value type: <string> + Definition : Must be "brg1"-"brg16" for internal clock source, + Must be "clk1"-"clk24" for external clock source. + +- fsl,tdm-interface + Usage: optional + Value type: <empty> + Definition : Specify that hdlc is based on tdm-interface + +The property below is dependent on fsl,tdm-interface: +- fsl,rx-sync-clock + Usage: required + Value type: <string> + Definition : Must be "none", "rsync_pin", "brg9-11" and "brg13-15". + +- fsl,tx-sync-clock + Usage: required + Value type: <string> + Definition : Must be "none", "tsync_pin", "brg9-11" and "brg13-15". + +- fsl,tdm-framer-type + Usage: required for tdm interface + Value type: <string> + Definition : "e1" or "t1".Now e1 and t1 are used, other framer types + are not supported. + +- fsl,tdm-id + Usage: required for tdm interface + Value type: <u32> + Definition : number of TDM ID + +- fsl,tx-timeslot-mask +- fsl,rx-timeslot-mask + Usage: required for tdm interface + Value type: <u32> + Definition : time slot mask for TDM operation. Indicates which time + slots used for transmitting and receiving. + +- fsl,siram-entry-id + Usage: required for tdm interface + Value type: <u32> + Definition : Must be 0,2,4...64. the number of TDM entry. + +- fsl,tdm-internal-loopback + usage: optional for tdm interface + value type: <empty> + Definition : Internal loopback connecting on TDM layer. + +Example for tdm interface: + + ucc@2000 { + compatible = "fsl,ucc-hdlc"; + rx-clock-name = "clk8"; + tx-clock-name = "clk9"; + fsl,rx-sync-clock = "rsync_pin"; + fsl,tx-sync-clock = "tsync_pin"; + fsl,tx-timeslot-mask = <0xfffffffe>; + fsl,rx-timeslot-mask = <0xfffffffe>; + fsl,tdm-framer-type = "e1"; + fsl,tdm-id = <0>; + fsl,siram-entry-id = <0>; + fsl,tdm-interface; + }; + +Example for hdlc without tdm interface: + + ucc@2000 { + compatible = "fsl,ucc-hdlc"; + rx-clock-name = "brg1"; + tx-clock-name = "brg1"; + }; diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe.txt index 4f8930263dd9..d7afaff5faff 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe.txt @@ -69,6 +69,58 @@ Example: }; }; +* Interrupt Controller (IC) + +Required properties: +- compatible : should be "fsl,qe-ic". +- reg : Address range of IC register set. +- interrupts : interrupts generated by the device. +- interrupt-controller : this device is a interrupt controller. + +Example: + + qeic: interrupt-controller@80 { + interrupt-controller; + compatible = "fsl,qe-ic"; + #address-cells = <0>; + #interrupt-cells = <1>; + reg = <0x80 0x80>; + interrupts = <95 2 0 0 94 2 0 0>; + }; + +* Serial Interface Block (SI) + +The SI manages the routing of eight TDM lines to the QE block serial drivers +, the MCC and the UCCs, for receive and transmit. + +Required properties: +- compatible : must be "fsl,<chip>-qe-si". For t1040, must contain + "fsl,t1040-qe-si". +- reg : Address range of SI register set. + +Example: + + si1: si@700 { + compatible = "fsl,t1040-qe-si"; + reg = <0x700 0x80>; + }; + +* Serial Interface Block RAM(SIRAM) + +store the routing entries of SI + +Required properties: +- compatible : should be "fsl,<chip>-qe-siram". For t1040, must contain + "fsl,t1040-qe-siram". +- reg : Address range of SI RAM. + +Example: + + siram1: siram@1000 { + compatible = "fsl,t1040-qe-siram"; + reg = <0x1000 0x800>; + }; + * QE Firmware Node This node defines a firmware binary that is embedded in the device tree, for diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/firmware.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/firmware.txt index 249db3a15d15..249db3a15d15 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/firmware.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/firmware.txt diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/par_io.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/par_io.txt index 60984260207b..60984260207b 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/par_io.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/par_io.txt diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/pincfg.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/pincfg.txt index ec6ee2e864a2..ec6ee2e864a2 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/pincfg.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/pincfg.txt diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/ucc.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/ucc.txt index e47734bee3f0..e47734bee3f0 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/ucc.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/ucc.txt diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/usb.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/usb.txt index 9ccd5f30405b..9ccd5f30405b 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/qe/usb.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/qe/usb.txt diff --git a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/serial.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/serial.txt index 2ea76d9d137c..2ea76d9d137c 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/serial.txt +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/serial.txt diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/uqe_serial.txt b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/uqe_serial.txt new file mode 100644 index 000000000000..8823c86c8085 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/uqe_serial.txt @@ -0,0 +1,17 @@ +* Serial + +Required Properties: +compatible : must be "fsl,<chip>-ucc-uart". For t1040, must be +"fsl,t1040-ucc-uart". +port-number : port number of UCC-UART +tx/rx-clock-name : should be "brg1"-"brg16" for internal clock source, + should be "clk1"-"clk28" for external clock source. + +Example: + + ucc_serial: ucc@2200 { + compatible = "fsl,t1040-ucc-uart"; + port-number = <0>; + rx-clock-name = "brg2"; + tx-clock-name = "brg2"; + }; diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 769db8399ac8..e24aa11e8f8a 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -931,9 +931,18 @@ bytes respectively. Such letter suffixes can also be entirely omitted. dhash_entries= [KNL] Set number of hash buckets for dentry cache. + disable_1tb_segments [PPC] + Disables the use of 1TB hash page table segments. This + causes the kernel to fall back to 256MB segments which + can be useful when debugging issues that require an SLB + miss to occur. + disable= [IPV6] See Documentation/networking/ipv6.txt. + disable_radix [PPC] + Disable RADIX MMU mode on POWER9 + disable_cpu_apicid= [X86,APIC,SMP] Format: <int> The number of initial APIC ID for the diff --git a/MAINTAINERS b/MAINTAINERS index 256f56bbb2ad..8af18097e92c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6948,6 +6948,7 @@ F: drivers/crypto/nx/ F: drivers/crypto/vmx/ F: drivers/net/ethernet/ibm/ibmveth.* F: drivers/net/ethernet/ibm/ibmvnic.* +F: drivers/pci/hotplug/pnv_php.c F: drivers/pci/hotplug/rpa* F: drivers/scsi/ibmvscsi/ N: opal @@ -9214,6 +9215,12 @@ F: drivers/firmware/psci.c F: include/linux/psci.h F: include/uapi/linux/psci.h +POWERNV OPERATOR PANEL LCD DISPLAY DRIVER +M: Suraj Jitindar Singh <sjitindarsingh@gmail.com> +L: linuxppc-dev@lists.ozlabs.org +S: Maintained +F: drivers/char/powernv-op-panel.c + PNP SUPPORT M: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> S: Maintained diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index d111044f41a2..ec4047e170a0 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -127,7 +127,8 @@ config PPC select IRQ_FORCED_THREADING select HAVE_RCU_TABLE_FREE if SMP select HAVE_SYSCALL_TRACEPOINTS - select HAVE_CBPF_JIT if CPU_BIG_ENDIAN + select HAVE_CBPF_JIT if !PPC64 + select HAVE_EBPF_JIT if PPC64 select HAVE_ARCH_JUMP_LABEL select ARCH_HAVE_NMI_SAFE_CMPXCHG select ARCH_HAS_GCOV_PROFILE_ALL @@ -163,6 +164,8 @@ config PPC select ARCH_HAS_UBSAN_SANITIZE_ALL select ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT select HAVE_LIVEPATCH if HAVE_DYNAMIC_FTRACE_WITH_REGS + select GENERIC_CPU_AUTOPROBE + select HAVE_VIRT_CPU_ACCOUNTING config GENERIC_CSUM def_bool CPU_LITTLE_ENDIAN @@ -456,6 +459,29 @@ config KEXEC interface is strongly in flux, so no good recommendation can be made. +config RELOCATABLE + bool "Build a relocatable kernel" + depends on (PPC64 && !COMPILE_TEST) || (FLATMEM && (44x || FSL_BOOKE)) + select NONSTATIC_KERNEL + help + This builds a kernel image that is capable of running at the + location the kernel is loaded at. For ppc32, there is no any + alignment restrictions, and this feature is a superset of + DYNAMIC_MEMSTART and hence overrides it. For ppc64, we should use + 16k-aligned base address. The kernel is linked as a + position-independent executable (PIE) and contains dynamic relocations + which are processed early in the bootup process. + + One use is for the kexec on panic case where the recovery kernel + must live at a different physical address than the primary + kernel. + + Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address + it has been loaded at and the compile time physical addresses + CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START + setting can still be useful to bootwrappers that need to know the + load address of the kernel (eg. u-boot/mkimage). + config CRASH_DUMP bool "Build a kdump crash kernel" depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) @@ -948,29 +974,6 @@ config DYNAMIC_MEMSTART This option is overridden by CONFIG_RELOCATABLE -config RELOCATABLE - bool "Build a relocatable kernel" - depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE) - select NONSTATIC_KERNEL - help - This builds a kernel image that is capable of running at the - location the kernel is loaded at, without any alignment restrictions. - This feature is a superset of DYNAMIC_MEMSTART and hence overrides it. - - One use is for the kexec on panic case where the recovery kernel - must live at a different physical address than the primary - kernel. - - Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address - it has been loaded at and the compile time physical addresses - CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START - setting can still be useful to bootwrappers that need to know the - load address of the kernel (eg. u-boot/mkimage). - -config RELOCATABLE_PPC32 - def_bool y - depends on PPC32 && RELOCATABLE - config PAGE_OFFSET_BOOL bool "Set custom page offset address" depends on ADVANCED_OPTIONS @@ -1053,24 +1056,14 @@ config CONSISTENT_SIZE config PIN_TLB bool "Pinned Kernel TLBs (860 ONLY)" depends on ADVANCED_OPTIONS && 8xx + +config PIN_TLB_IMMR + bool "Pinned TLB for IMMR" + depends on PIN_TLB + default y endmenu if PPC64 -config RELOCATABLE - bool "Build a relocatable kernel" - depends on !COMPILE_TEST - select NONSTATIC_KERNEL - help - This builds a kernel image that is capable of running anywhere - in the RMA (real memory area) at any 16k-aligned base address. - The kernel is linked as a position-independent executable (PIE) - and contains dynamic relocations which are processed early - in the bootup process. - - One use is for the kexec on panic case where the recovery kernel - must live at a different physical address than the primary - kernel. - # This value must have zeroes in the bottom 60 bits otherwise lots will break config PAGE_OFFSET hex diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index d3fcf7e64e3a..171047822b56 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -149,14 +149,14 @@ config PPC_EARLY_DEBUG_BOOTX config PPC_EARLY_DEBUG_LPAR bool "LPAR HV Console" - depends on PPC_PSERIES + depends on PPC_PSERIES && HVC_CONSOLE help Select this to enable early debugging for a machine with a HVC console on vterm 0. config PPC_EARLY_DEBUG_LPAR_HVSI bool "LPAR HVSI Console" - depends on PPC_PSERIES + depends on PPC_PSERIES && HVC_CONSOLE help Select this to enable early debugging for a machine with a HVSI console on a specified vterm. @@ -212,7 +212,6 @@ config PPC_EARLY_DEBUG_40x config PPC_EARLY_DEBUG_CPM bool "Early serial debugging for Freescale CPM-based serial ports" depends on SERIAL_CPM - select PIN_TLB if PPC_8xx help Select this to enable early debugging for Freescale chips using a CPM-based serial port. This assumes that the bootwrapper diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 709a22a3e824..ca254546cd05 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -181,6 +181,11 @@ KBUILD_CFLAGS += -pipe -Iarch/$(ARCH) $(CFLAGS-y) CPP = $(CC) -E $(KBUILD_CFLAGS) CHECKFLAGS += -m$(CONFIG_WORD_SIZE) -D__powerpc__ -D__powerpc$(CONFIG_WORD_SIZE)__ +ifdef CONFIG_CPU_BIG_ENDIAN +CHECKFLAGS += -D__BIG_ENDIAN__ +else +CHECKFLAGS += -D__LITTLE_ENDIAN__ +endif KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o @@ -221,7 +226,7 @@ KBUILD_CFLAGS += -mno-sched-epilog endif cpu-as-$(CONFIG_4xx) += -Wa,-m405 -cpu-as-$(CONFIG_ALTIVEC) += -Wa,-maltivec +cpu-as-$(CONFIG_ALTIVEC) += $(call as-option,-Wa$(comma)-maltivec) cpu-as-$(CONFIG_E200) += -Wa,-me200 KBUILD_AFLAGS += $(cpu-as-y) diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 8fe78a3efc92..4cd612a6e272 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -70,7 +70,7 @@ $(addprefix $(obj)/,$(zlib) cuboot-c2k.o gunzip_util.o main.o): \ libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c libfdtheader := fdt.h libfdt.h libfdt_internal.h -$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o): \ +$(addprefix $(obj)/,$(libfdt) libfdt-wrapper.o simpleboot.o epapr.o opal.o): \ $(addprefix $(obj)/,$(libfdtheader)) src-wlib-y := string.S crt0.S crtsavres.S stdio.c main.c \ @@ -78,7 +78,7 @@ src-wlib-y := string.S crt0.S crtsavres.S stdio.c main.c \ ns16550.c serial.c simple_alloc.c div64.S util.S \ gunzip_util.c elf_util.c $(zlib) devtree.c stdlib.c \ oflib.c ofconsole.c cuboot.c mpsc.c cpm-serial.c \ - uartlite.c mpc52xx-psc.c + uartlite.c mpc52xx-psc.c opal.c opal-calls.S src-wlib-$(CONFIG_40x) += 4xx.c planetcore.c src-wlib-$(CONFIG_44x) += 4xx.c ebony.c bamboo.c src-wlib-$(CONFIG_8xx) += mpc8xx.c planetcore.c fsl-soc.c @@ -113,6 +113,7 @@ src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c epapr-wrapper.c src-plat-$(CONFIG_PPC_PSERIES) += pseries-head.S src-plat-$(CONFIG_PPC_POWERNV) += pseries-head.S src-plat-$(CONFIG_PPC_IBM_CELL_BLADE) += pseries-head.S +src-plat-$(CONFIG_MVME7100) += motload-head.S mvme7100.c src-wlib := $(sort $(src-wlib-y)) src-plat := $(sort $(src-plat-y)) @@ -296,6 +297,9 @@ image-$(CONFIG_TQM8560) += cuImage.tqm8560 image-$(CONFIG_SBC8548) += cuImage.sbc8548 image-$(CONFIG_KSI8560) += cuImage.ksi8560 +# Board ports in arch/powerpc/platform/86xx/Kconfig +image-$(CONFIG_MVME7100) += dtbImage.mvme7100 + # Board ports in arch/powerpc/platform/embedded6xx/Kconfig image-$(CONFIG_STORCENTER) += cuImage.storcenter image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2 diff --git a/arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi b/arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi index bc3bf9333dde..88d8423f8ac5 100644 --- a/arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi @@ -51,6 +51,7 @@ serial2 = &serial2; serial3 = &serial3; pci0 = &pci0; + usb0 = &usb0; dma0 = &dma0; dma1 = &dma1; sdhc = &sdhc; diff --git a/arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi b/arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi index 8797ce146512..f3f968c51f4b 100644 --- a/arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi @@ -51,6 +51,7 @@ serial2 = &serial2; serial3 = &serial3; pci0 = &pci0; + usb0 = &usb0; dma0 = &dma0; dma1 = &dma1; sdhc = &sdhc; diff --git a/arch/powerpc/boot/dts/fsl/kmcoge4.dts b/arch/powerpc/boot/dts/fsl/kmcoge4.dts index 2d4b64fcee88..ae70a24094b0 100644 --- a/arch/powerpc/boot/dts/fsl/kmcoge4.dts +++ b/arch/powerpc/boot/dts/fsl/kmcoge4.dts @@ -106,6 +106,43 @@ sata@221000 { status = "disabled"; }; + + fman0: fman@400000 { + enet0: ethernet@e0000 { + phy-connection-type = "sgmii"; + fixed-link { + speed = <1000>; + full-duplex; + }; + }; + mdio0: mdio@e1120 { + front_phy: ethernet-phy@11 { + reg = <0x11>; + }; + }; + + enet1: ethernet@e2000 { + phy-connection-type = "sgmii"; + fixed-link { + speed = <1000>; + full-duplex; + }; + }; + enet2: ethernet@e4000 { + status = "disabled"; + }; + + enet3: ethernet@e6000 { + status = "disabled"; + }; + enet4: ethernet@e8000 { + phy-handle = <&front_phy>; + phy-connection-type = "rgmii"; + }; + enet5: ethernet@f0000 { + status = "disabled"; + }; + }; }; rio: rapidio@ffe0c0000 { diff --git a/arch/powerpc/boot/dts/fsl/mvme7100.dts b/arch/powerpc/boot/dts/fsl/mvme7100.dts new file mode 100644 index 000000000000..e2d306ad37a6 --- /dev/null +++ b/arch/powerpc/boot/dts/fsl/mvme7100.dts @@ -0,0 +1,153 @@ +/* + * Device tree source for the Emerson/Artesyn MVME7100 + * + * Copyright 2016 Elettra-Sincrotrone Trieste S.C.p.A. + * + * Author: Alessio Igor Bogani <alessio.bogani@elettra.eu> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +/include/ "mpc8641si-pre.dtsi" + +/ { + model = "MVME7100"; + compatible = "artesyn,MVME7100"; + + memory { + device_type = "memory"; + reg = <0x00000000 0x80000000>; + }; + + soc: soc@f1000000 { + ranges = <0x00000000 0xf1000000 0x00100000>; + + i2c@3000 { + hwmon@4c { + compatible = "dallas,max6649"; + reg = <0x4c>; + }; + + rtc@68 { + status = "disabled"; + }; + }; + + + enet0: ethernet@24000 { + phy-handle = <&phy0>; + phy-connection-type = "rgmii-id"; + }; + + mdio@24520 { + phy0: ethernet-phy@1 { + reg = <1>; + }; + phy1: ethernet-phy@2 { + reg = <2>; + }; + phy2: ethernet-phy@3 { + reg = <3>; + }; + phy3: ethernet-phy@4 { + reg = <4>; + }; + }; + + enet1: ethernet@25000 { + phy-handle = <&phy1>; + phy-connection-type = "rgmii-id"; + }; + + mdio@25520 { + status = "disabled"; + }; + + enet2: ethernet@26000 { + phy-handle = <&phy2>; + phy-connection-type = "rgmii-id"; + }; + + mdio@26520 { + status = "disabled"; + }; + + enet3: ethernet@27000 { + phy-handle = <&phy3>; + phy-connection-type = "rgmii-id"; + }; + + mdio@27520 { + status = "disabled"; + }; + + serial1: serial@4600 { + status = "disabled"; + }; + }; + + lbc: localbus@f1005000 { + reg = <0xf1005000 0x1000>; + + ranges = <0 0 0xf8000000 0x08000000 // NOR Flash (128MB) + 2 0 0xf2030000 0x00010000 // NAND Flash (8GB) + 3 0 0xf2400000 0x00080000 // MRAM (512KB) + 4 0 0xf2000000 0x00010000 // BCSR + 5 0 0xf2010000 0x00010000>; // QUART + + bcsr@4,0 { + compatible = "artesyn,mvme7100-bcsr"; + reg = <4 0 0x10000>; + }; + + serial@5,1000 { + device_type = "serial"; + compatible = "ns16550"; + reg = <5 0x1000 0x100>; + clock-frequency = <1843200>; + interrupts = <11 1 0 0>; + }; + + serial@5,2000 { + device_type = "serial"; + compatible = "ns16550"; + reg = <5 0x2000 0x100>; + clock-frequency = <1843200>; + interrupts = <11 1 0 0>; + }; + + serial@5,3000 { + device_type = "serial"; + compatible = "ns16550"; + reg = <5 0x3000 0x100>; + clock-frequency = <1843200>; + interrupts = <11 1 0 0>; + }; + + serial@5,4000 { + device_type = "serial"; + compatible = "ns16550"; + reg = <5 0x4000 0x100>; + clock-frequency = <1843200>; + interrupts = <11 1 0 0>; + }; + }; + + pci0: pcie@f1008000 { + status = "disabled"; + }; + + pci1: pcie@f1009000 { + status = "disabled"; + }; + + chosen { + linux,stdout-path = &serial0; + }; +}; + +/include/ "mpc8641si-post.dtsi" diff --git a/arch/powerpc/boot/dts/fsl/qonverge-usb2-dr-0.dtsi b/arch/powerpc/boot/dts/fsl/qonverge-usb2-dr-0.dtsi index 29dad723091e..fcc7e5b7fd47 100644 --- a/arch/powerpc/boot/dts/fsl/qonverge-usb2-dr-0.dtsi +++ b/arch/powerpc/boot/dts/fsl/qonverge-usb2-dr-0.dtsi @@ -32,7 +32,7 @@ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -usb@210000 { +usb0: usb@210000 { compatible = "fsl-usb2-dr"; reg = <0x210000 0x1000>; #address-cells = <1>; diff --git a/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi b/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi index 507649ece0a1..44e399b17f6f 100644 --- a/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi +++ b/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi @@ -607,7 +607,7 @@ /include/ "qoriq-gpio-3.dtsi" /include/ "qoriq-usb2-mph-0.dtsi" usb0: usb@210000 { - compatible = "fsl-usb2-mph-v2.4", "fsl-usb2-mph"; + compatible = "fsl-usb2-mph-v2.5", "fsl-usb2-mph"; fsl,iommu-parent = <&pamu0>; fsl,liodn-reg = <&guts 0x520>; /* USB1LIODNR */ phy_type = "utmi"; @@ -615,7 +615,7 @@ }; /include/ "qoriq-usb2-dr-0.dtsi" usb1: usb@211000 { - compatible = "fsl-usb2-dr-v2.4", "fsl-usb2-dr"; + compatible = "fsl-usb2-dr-v2.5", "fsl-usb2-dr"; fsl,iommu-parent = <&pamu0>; fsl,liodn-reg = <&guts 0x524>; /* USB2LIODNR */ dr_mode = "host"; @@ -673,3 +673,48 @@ }; }; }; + +&qe { + #address-cells = <1>; + #size-cells = <1>; + device_type = "qe"; + compatible = "fsl,qe"; + fsl,qe-num-riscs = <1>; + fsl,qe-num-snums = <28>; + + qeic: interrupt-controller@80 { + interrupt-controller; + compatible = "fsl,qe-ic"; + #address-cells = <0>; + #interrupt-cells = <1>; + reg = <0x80 0x80>; + interrupts = <95 2 0 0 94 2 0 0>; //high:79 low:78 + }; + + ucc@2000 { + cell-index = <1>; + reg = <0x2000 0x200>; + interrupts = <32>; + interrupt-parent = <&qeic>; + }; + + ucc@2200 { + cell-index = <3>; + reg = <0x2200 0x200>; + interrupts = <34>; + interrupt-parent = <&qeic>; + }; + + muram@10000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "fsl,qe-muram", "fsl,cpm-muram"; + ranges = <0x0 0x10000 0x6000>; + + data-only@0 { + compatible = "fsl,qe-muram-data", + "fsl,cpm-muram-data"; + reg = <0x0 0x6000>; + }; + }; +}; diff --git a/arch/powerpc/boot/dts/fsl/t104xd4rdb.dtsi b/arch/powerpc/boot/dts/fsl/t104xd4rdb.dtsi index 8c7ea6c05de9..863f9431285f 100644 --- a/arch/powerpc/boot/dts/fsl/t104xd4rdb.dtsi +++ b/arch/powerpc/boot/dts/fsl/t104xd4rdb.dtsi @@ -212,4 +212,42 @@ 0 0x00010000>; }; }; + + qe: qe@ffe140000 { + ranges = <0x0 0xf 0xfe140000 0x40000>; + reg = <0xf 0xfe140000 0 0x480>; + brg-frequency = <0>; + bus-frequency = <0>; + + si1: si@700 { + compatible = "fsl,t1040-qe-si"; + reg = <0x700 0x80>; + }; + + siram1: siram@1000 { + compatible = "fsl,t1040-qe-siram"; + reg = <0x1000 0x800>; + }; + + ucc_hdlc: ucc@2000 { + compatible = "fsl,ucc-hdlc"; + rx-clock-name = "clk8"; + tx-clock-name = "clk9"; + fsl,rx-sync-clock = "rsync_pin"; + fsl,tx-sync-clock = "tsync_pin"; + fsl,tx-timeslot-mask = <0xfffffffe>; + fsl,rx-timeslot-mask = <0xfffffffe>; + fsl,tdm-framer-type = "e1"; + fsl,tdm-id = <0>; + fsl,siram-entry-id = <0>; + fsl,tdm-interface; + }; + + ucc_serial: ucc@2200 { + compatible = "fsl,t1040-ucc-uart"; + port-number = <0>; + rx-clock-name = "brg2"; + tx-clock-name = "brg2"; + }; + }; }; diff --git a/arch/powerpc/boot/dts/fsl/t104xqds.dtsi b/arch/powerpc/boot/dts/fsl/t104xqds.dtsi index 977af355b388..2fd4cbe7098f 100644 --- a/arch/powerpc/boot/dts/fsl/t104xqds.dtsi +++ b/arch/powerpc/boot/dts/fsl/t104xqds.dtsi @@ -366,4 +366,42 @@ 0 0x00010000>; }; }; + + qe: qe@ffe140000 { + ranges = <0x0 0xf 0xfe140000 0x40000>; + reg = <0xf 0xfe140000 0 0x480>; + brg-frequency = <0>; + bus-frequency = <0>; + + si1: si@700 { + compatible = "fsl,t1040-qe-si"; + reg = <0x700 0x80>; + }; + + siram1: siram@1000 { + compatible = "fsl,t1040-qe-siram"; + reg = <0x1000 0x800>; + }; + + ucc_hdlc: ucc@2000 { + compatible = "fsl,ucc-hdlc"; + rx-clock-name = "clk8"; + tx-clock-name = "clk9"; + fsl,rx-sync-clock = "rsync_pin"; + fsl,tx-sync-clock = "tsync_pin"; + fsl,tx-timeslot-mask = <0xfffffffe>; + fsl,rx-timeslot-mask = <0xfffffffe>; + fsl,tdm-framer-type = "e1"; + fsl,tdm-id = <0>; + fsl,siram-entry-id = <0>; + fsl,tdm-interface; + }; + + ucc_serial: ucc@2200 { + compatible = "fsl,t1040-ucc-uart"; + port-number = <0>; + rx-clock-name = "brg2"; + tx-clock-name = "brg2"; + }; + }; }; diff --git a/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi b/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi index 7c4afdb44b46..5fdddbd2a62b 100644 --- a/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi +++ b/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi @@ -222,4 +222,42 @@ 0 0x00010000>; }; }; + + qe: qe@ffe140000 { + ranges = <0x0 0xf 0xfe140000 0x40000>; + reg = <0xf 0xfe140000 0 0x480>; + brg-frequency = <0>; + bus-frequency = <0>; + + si1: si@700 { + compatible = "fsl,t1040-qe-si"; + reg = <0x700 0x80>; + }; + + siram1: siram@1000 { + compatible = "fsl,t1040-qe-siram"; + reg = <0x1000 0x800>; + }; + + ucc_hdlc: ucc@2000 { + compatible = "fsl,ucc-hdlc"; + rx-clock-name = "clk8"; + tx-clock-name = "clk9"; + fsl,rx-sync-clock = "rsync_pin"; + fsl,tx-sync-clock = "tsync_pin"; + fsl,tx-timeslot-mask = <0xfffffffe>; + fsl,rx-timeslot-mask = <0xfffffffe>; + fsl,tdm-framer-type = "e1"; + fsl,tdm-id = <0>; + fsl,siram-entry-id = <0>; + fsl,tdm-interface; + }; + + ucc_serial: ucc@2200 { + compatible = "fsl,t1040-ucc-uart"; + port-number = <0>; + rx-clock-name = "brg2"; + tx-clock-name = "brg2"; + }; + }; }; diff --git a/arch/powerpc/boot/dts/fsl/t4240si-pre.dtsi b/arch/powerpc/boot/dts/fsl/t4240si-pre.dtsi index 1184a746fcb1..038cf8fadee4 100644 --- a/arch/powerpc/boot/dts/fsl/t4240si-pre.dtsi +++ b/arch/powerpc/boot/dts/fsl/t4240si-pre.dtsi @@ -56,6 +56,8 @@ pci1 = &pci1; pci2 = &pci2; pci3 = &pci3; + usb0 = &usb0; + usb1 = &usb1; dma0 = &dma0; dma1 = &dma1; dma2 = &dma2; diff --git a/arch/powerpc/boot/motload-head.S b/arch/powerpc/boot/motload-head.S new file mode 100644 index 000000000000..41cabb4b63fa --- /dev/null +++ b/arch/powerpc/boot/motload-head.S @@ -0,0 +1,11 @@ +#include "ppc_asm.h" + + .text + .globl _zimage_start +_zimage_start: + mfmsr r10 + rlwinm r10,r10,0,~(1<<15) /* Clear MSR_EE */ + sync + mtmsr r10 + isync + b _zimage_start_lib diff --git a/arch/powerpc/boot/mvme7100.c b/arch/powerpc/boot/mvme7100.c new file mode 100644 index 000000000000..8b0a932311af --- /dev/null +++ b/arch/powerpc/boot/mvme7100.c @@ -0,0 +1,59 @@ +/* + * Motload compatibility for the Emerson/Artesyn MVME7100 + * + * Copyright 2016 Elettra-Sincrotrone Trieste S.C.p.A. + * + * Author: Alessio Igor Bogani <alessio.bogani@elettra.eu> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include "ops.h" +#include "stdio.h" +#include "cuboot.h" + +#define TARGET_86xx +#define TARGET_HAS_ETH1 +#define TARGET_HAS_ETH2 +#define TARGET_HAS_ETH3 +#include "ppcboot.h" + +static bd_t bd; + +BSS_STACK(16384); + +static void mvme7100_fixups(void) +{ + void *devp; + unsigned long busfreq = bd.bi_busfreq * 1000000; + + dt_fixup_cpu_clocks(bd.bi_intfreq * 1000000, busfreq / 4, busfreq); + + devp = finddevice("/soc@f1000000"); + if (devp) + setprop(devp, "bus-frequency", &busfreq, sizeof(busfreq)); + + devp = finddevice("/soc/serial@4500"); + if (devp) + setprop(devp, "clock-frequency", &busfreq, sizeof(busfreq)); + + dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); + + dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr); + dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr); + dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr); + dt_fixup_mac_address_by_alias("ethernet3", bd.bi_enet3addr); +} + +void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, + unsigned long r6, unsigned long r7) +{ + CUBOOT_INIT(); + fdt_init(_dtb_start); + serial_console_init(); + platform_ops.fixups = mvme7100_fixups; +} diff --git a/arch/powerpc/boot/opal-calls.S b/arch/powerpc/boot/opal-calls.S new file mode 100644 index 000000000000..ff2f1b97bc53 --- /dev/null +++ b/arch/powerpc/boot/opal-calls.S @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2016 IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include "ppc_asm.h" +#include "../include/asm/opal-api.h" + + .text + +#define OPAL_CALL(name, token) \ + .globl name; \ +name: \ + li r0, token; \ + b opal_call; + +opal_call: + mflr r11 + std r11,16(r1) + mfcr r12 + stw r12,8(r1) + mr r13,r2 + + /* Set opal return address */ + ld r11,opal_return@got(r2) + mtlr r11 + mfmsr r12 + + /* switch to BE when we enter OPAL */ + li r11,MSR_LE + andc r12,r12,r11 + mtspr SPRN_HSRR1,r12 + + /* load the opal call entry point and base */ + ld r11,opal@got(r2) + ld r12,8(r11) + ld r2,0(r11) + mtspr SPRN_HSRR0,r12 + hrfid + +opal_return: + FIXUP_ENDIAN + mr r2,r13; + lwz r11,8(r1); + ld r12,16(r1) + mtcr r11; + mtlr r12 + blr + +OPAL_CALL(opal_console_write, OPAL_CONSOLE_WRITE); +OPAL_CALL(opal_console_read, OPAL_CONSOLE_READ); +OPAL_CALL(opal_console_write_buffer_space, OPAL_CONSOLE_WRITE_BUFFER_SPACE); +OPAL_CALL(opal_poll_events, OPAL_POLL_EVENTS); +OPAL_CALL(opal_console_flush, OPAL_CONSOLE_FLUSH); diff --git a/arch/powerpc/boot/opal.c b/arch/powerpc/boot/opal.c new file mode 100644 index 000000000000..1f37e1c1d6d8 --- /dev/null +++ b/arch/powerpc/boot/opal.c @@ -0,0 +1,98 @@ +/* + * Copyright (c) 2016 IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include "ops.h" +#include "stdio.h" +#include "io.h" +#include <libfdt.h> +#include "../include/asm/opal-api.h" + +#ifdef __powerpc64__ + +/* Global OPAL struct used by opal-call.S */ +struct opal { + u64 base; + u64 entry; +} opal; + +static u32 opal_con_id; + +int64_t opal_console_write(int64_t term_number, u64 *length, const u8 *buffer); +int64_t opal_console_read(int64_t term_number, uint64_t *length, u8 *buffer); +int64_t opal_console_write_buffer_space(uint64_t term_number, uint64_t *length); +int64_t opal_console_flush(uint64_t term_number); +int64_t opal_poll_events(uint64_t *outstanding_event_mask); + +static int opal_con_open(void) +{ + return 0; +} + +static void opal_con_putc(unsigned char c) +{ + int64_t rc; + uint64_t olen, len; + + do { + rc = opal_console_write_buffer_space(opal_con_id, &olen); + len = be64_to_cpu(olen); + if (rc) + return; + opal_poll_events(NULL); + } while (len < 1); + + + olen = cpu_to_be64(1); + opal_console_write(opal_con_id, &olen, &c); +} + +static void opal_con_close(void) +{ + opal_console_flush(opal_con_id); +} + +static void opal_init(void) +{ + void *opal_node; + + opal_node = finddevice("/ibm,opal"); + if (!opal_node) + return; + if (getprop(opal_node, "opal-base-address", &opal.base, sizeof(u64)) < 0) + return; + opal.base = be64_to_cpu(opal.base); + if (getprop(opal_node, "opal-entry-address", &opal.entry, sizeof(u64)) < 0) + return; + opal.entry = be64_to_cpu(opal.entry); +} + +int opal_console_init(void *devp, struct serial_console_data *scdp) +{ + opal_init(); + + if (devp) { + int n = getprop(devp, "reg", &opal_con_id, sizeof(u32)); + if (n != sizeof(u32)) + return -1; + opal_con_id = be32_to_cpu(opal_con_id); + } else + opal_con_id = 0; + + scdp->open = opal_con_open; + scdp->putc = opal_con_putc; + scdp->close = opal_con_close; + + return 0; +} +#else +int opal_console_init(void *devp, struct serial_console_data *scdp) +{ + return -1; +} +#endif /* __powerpc64__ */ diff --git a/arch/powerpc/boot/ops.h b/arch/powerpc/boot/ops.h index 5e75e1c5518e..e19b64ef977a 100644 --- a/arch/powerpc/boot/ops.h +++ b/arch/powerpc/boot/ops.h @@ -89,6 +89,7 @@ int mpsc_console_init(void *devp, struct serial_console_data *scdp); int cpm_console_init(void *devp, struct serial_console_data *scdp); int mpc5200_psc_console_init(void *devp, struct serial_console_data *scdp); int uartlite_console_init(void *devp, struct serial_console_data *scdp); +int opal_console_init(void *devp, struct serial_console_data *scdp); void *simple_alloc_init(char *base, unsigned long heap_size, unsigned long granularity, unsigned long max_allocs); extern void flush_cache(void *, unsigned long); diff --git a/arch/powerpc/boot/ppc_asm.h b/arch/powerpc/boot/ppc_asm.h index 35ea60c1f070..b03373d8b386 100644 --- a/arch/powerpc/boot/ppc_asm.h +++ b/arch/powerpc/boot/ppc_asm.h @@ -61,6 +61,10 @@ #define SPRN_TBRL 268 #define SPRN_TBRU 269 +#define SPRN_HSRR0 0x13A /* Hypervisor Save/Restore 0 */ +#define SPRN_HSRR1 0x13B /* Hypervisor Save/Restore 1 */ + +#define MSR_LE 0x0000000000000001 #define FIXUP_ENDIAN \ tdi 0, 0, 0x48; /* Reverse endian of b . + 8 */ \ diff --git a/arch/powerpc/boot/ppcboot.h b/arch/powerpc/boot/ppcboot.h index 6ae6f9063952..453df429d5d0 100644 --- a/arch/powerpc/boot/ppcboot.h +++ b/arch/powerpc/boot/ppcboot.h @@ -43,7 +43,7 @@ typedef struct bd_info { unsigned long bi_sramstart; /* start of SRAM memory */ unsigned long bi_sramsize; /* size of SRAM memory */ #if defined(TARGET_8xx) || defined(TARGET_CPM2) || defined(TARGET_85xx) ||\ - defined(TARGET_83xx) + defined(TARGET_83xx) || defined(TARGET_86xx) unsigned long bi_immr_base; /* base of IMMR register */ #endif #if defined(TARGET_PPC_MPC52xx) diff --git a/arch/powerpc/boot/serial.c b/arch/powerpc/boot/serial.c index 167ee9433de6..e04c1e4063ae 100644 --- a/arch/powerpc/boot/serial.c +++ b/arch/powerpc/boot/serial.c @@ -132,6 +132,8 @@ int serial_console_init(void) else if (dt_is_compatible(devp, "xlnx,opb-uartlite-1.00.b") || dt_is_compatible(devp, "xlnx,xps-uartlite-1.00.a")) rc = uartlite_console_init(devp, &serial_cd); + else if (dt_is_compatible(devp, "ibm,opal-console-raw")) + rc = opal_console_init(devp, &serial_cd); /* Add other serial console driver calls here */ diff --git a/arch/powerpc/boot/types.h b/arch/powerpc/boot/types.h index 31393d17a9c1..85565a89bcc2 100644 --- a/arch/powerpc/boot/types.h +++ b/arch/powerpc/boot/types.h @@ -12,6 +12,16 @@ typedef short s16; typedef int s32; typedef long long s64; +/* required for opal-api.h */ +typedef u8 uint8_t; +typedef u16 uint16_t; +typedef u32 uint32_t; +typedef u64 uint64_t; +typedef s8 int8_t; +typedef s16 int16_t; +typedef s32 int32_t; +typedef s64 int64_t; + #define min(x,y) ({ \ typeof(x) _x = (x); \ typeof(y) _y = (y); \ diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper index 6a19fcef5596..6681ec3625c9 100755 --- a/arch/powerpc/boot/wrapper +++ b/arch/powerpc/boot/wrapper @@ -302,6 +302,11 @@ mvme5100) platformo="$object/fixed-head.o $object/mvme5100.o" binary=y ;; +mvme7100) + platformo="$object/motload-head.o $object/mvme7100.o" + link_address='0x4000000' + binary=y + ;; esac vmz="$tmpdir/`basename \"$kernel\"`.$ext" diff --git a/arch/powerpc/configs/40x/acadia_defconfig b/arch/powerpc/configs/40x/acadia_defconfig index 9110a5cb1bb7..3438ed99c088 100644 --- a/arch/powerpc/configs/40x/acadia_defconfig +++ b/arch/powerpc/configs/40x/acadia_defconfig @@ -21,7 +21,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/40x/ep405_defconfig b/arch/powerpc/configs/40x/ep405_defconfig index 790366652ba3..36c44c0b560c 100644 --- a/arch/powerpc/configs/40x/ep405_defconfig +++ b/arch/powerpc/configs/40x/ep405_defconfig @@ -20,7 +20,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/40x/kilauea_defconfig b/arch/powerpc/configs/40x/kilauea_defconfig index 01bd71bac027..ad2156c6e2fc 100644 --- a/arch/powerpc/configs/40x/kilauea_defconfig +++ b/arch/powerpc/configs/40x/kilauea_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/40x/klondike_defconfig b/arch/powerpc/configs/40x/klondike_defconfig index e2036b7c7edb..28adb782ec51 100644 --- a/arch/powerpc/configs/40x/klondike_defconfig +++ b/arch/powerpc/configs/40x/klondike_defconfig @@ -32,8 +32,6 @@ CONFIG_SCSI_SAS_ATTRS=y # CONFIG_USB_SUPPORT is not set # CONFIG_IOMMU_SUPPORT is not set CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set CONFIG_EXT4_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y @@ -44,7 +42,6 @@ CONFIG_NLS_CODEPAGE_437=y CONFIG_NLS_ASCII=y CONFIG_NLS_ISO8859_1=y CONFIG_NLS_UTF8=y -CONFIG_AVERAGE=y CONFIG_MAGIC_SYSRQ=y # CONFIG_SCHED_DEBUG is not set # CONFIG_DEBUG_BUGVERBOSE is not set diff --git a/arch/powerpc/configs/40x/makalu_defconfig b/arch/powerpc/configs/40x/makalu_defconfig index efd51701fb4d..a00f434c4d47 100644 --- a/arch/powerpc/configs/40x/makalu_defconfig +++ b/arch/powerpc/configs/40x/makalu_defconfig @@ -20,7 +20,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/40x/obs600_defconfig b/arch/powerpc/configs/40x/obs600_defconfig index 5ded3dcdf60a..e500e6a12b3e 100644 --- a/arch/powerpc/configs/40x/obs600_defconfig +++ b/arch/powerpc/configs/40x/obs600_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/40x/virtex_defconfig b/arch/powerpc/configs/40x/virtex_defconfig index bcb0c4d854db..65dc084a154c 100644 --- a/arch/powerpc/configs/40x/virtex_defconfig +++ b/arch/powerpc/configs/40x/virtex_defconfig @@ -27,7 +27,6 @@ CONFIG_IP_MULTICAST=y CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y -# CONFIG_INET_LRO is not set CONFIG_NETFILTER=y CONFIG_IP_NF_IPTABLES=m CONFIG_IP_NF_FILTER=m diff --git a/arch/powerpc/configs/40x/walnut_defconfig b/arch/powerpc/configs/40x/walnut_defconfig index 37c838f26e53..567f99bd64a3 100644 --- a/arch/powerpc/configs/40x/walnut_defconfig +++ b/arch/powerpc/configs/40x/walnut_defconfig @@ -18,7 +18,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/44x/akebono_defconfig b/arch/powerpc/configs/44x/akebono_defconfig index ea4ef02a0578..143b2fbddb46 100644 --- a/arch/powerpc/configs/44x/akebono_defconfig +++ b/arch/powerpc/configs/44x/akebono_defconfig @@ -32,7 +32,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_DEVTMPFS=y @@ -110,10 +109,9 @@ CONFIG_MMC=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_M41T80=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y # CONFIG_DNOTIFY is not set # CONFIG_INOTIFY_USER is not set CONFIG_VFAT_FS=y diff --git a/arch/powerpc/configs/44x/arches_defconfig b/arch/powerpc/configs/44x/arches_defconfig index 95494209c124..6bba1a55b827 100644 --- a/arch/powerpc/configs/44x/arches_defconfig +++ b/arch/powerpc/configs/44x/arches_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/44x/bamboo_defconfig b/arch/powerpc/configs/44x/bamboo_defconfig index a046f08413fd..477d99fefd9a 100644 --- a/arch/powerpc/configs/44x/bamboo_defconfig +++ b/arch/powerpc/configs/44x/bamboo_defconfig @@ -21,7 +21,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/44x/bluestone_defconfig b/arch/powerpc/configs/44x/bluestone_defconfig index a326b773ac05..6b77aea79b6c 100644 --- a/arch/powerpc/configs/44x/bluestone_defconfig +++ b/arch/powerpc/configs/44x/bluestone_defconfig @@ -49,7 +49,7 @@ CONFIG_SENSORS_AD7414=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_M41T80=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_CRAMFS=y diff --git a/arch/powerpc/configs/44x/canyonlands_defconfig b/arch/powerpc/configs/44x/canyonlands_defconfig index d939e71fff7d..c8e6f048a122 100644 --- a/arch/powerpc/configs/44x/canyonlands_defconfig +++ b/arch/powerpc/configs/44x/canyonlands_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/44x/currituck_defconfig b/arch/powerpc/configs/44x/currituck_defconfig index 5aa312a158dd..3799a26de6f4 100644 --- a/arch/powerpc/configs/44x/currituck_defconfig +++ b/arch/powerpc/configs/44x/currituck_defconfig @@ -30,7 +30,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_DEVTMPFS=y @@ -71,10 +70,9 @@ CONFIG_USB_OHCI_HCD=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_M41T80=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_CRAMFS=y diff --git a/arch/powerpc/configs/44x/ebony_defconfig b/arch/powerpc/configs/44x/ebony_defconfig index 5909e016c37d..c265f54ab9e5 100644 --- a/arch/powerpc/configs/44x/ebony_defconfig +++ b/arch/powerpc/configs/44x/ebony_defconfig @@ -19,7 +19,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/44x/eiger_defconfig b/arch/powerpc/configs/44x/eiger_defconfig index 57499d25c877..bb6bd6d90821 100644 --- a/arch/powerpc/configs/44x/eiger_defconfig +++ b/arch/powerpc/configs/44x/eiger_defconfig @@ -24,7 +24,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y @@ -43,7 +42,6 @@ CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_SG=y CONFIG_FUSION=y CONFIG_FUSION_SAS=y -CONFIG_I2O=y CONFIG_NETDEVICES=y CONFIG_IBM_EMAC=y CONFIG_IBM_EMAC_RXB=256 diff --git a/arch/powerpc/configs/44x/icon_defconfig b/arch/powerpc/configs/44x/icon_defconfig index 5d52185d8f5a..060f2edddb71 100644 --- a/arch/powerpc/configs/44x/icon_defconfig +++ b/arch/powerpc/configs/44x/icon_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y @@ -76,8 +75,7 @@ CONFIG_LOGO=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1307=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_VFAT_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y diff --git a/arch/powerpc/configs/44x/iss476-smp_defconfig b/arch/powerpc/configs/44x/iss476-smp_defconfig index 0ad3e449526e..115a6b2be18b 100644 --- a/arch/powerpc/configs/44x/iss476-smp_defconfig +++ b/arch/powerpc/configs/44x/iss476-smp_defconfig @@ -32,7 +32,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y @@ -56,10 +55,9 @@ CONFIG_SERIAL_OF_PLATFORM=y CONFIG_THERMAL=y # CONFIG_USB_SUPPORT is not set CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_CRAMFS=y diff --git a/arch/powerpc/configs/44x/katmai_defconfig b/arch/powerpc/configs/44x/katmai_defconfig index a042335971da..b999048c4ae6 100644 --- a/arch/powerpc/configs/44x/katmai_defconfig +++ b/arch/powerpc/configs/44x/katmai_defconfig @@ -21,7 +21,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/44x/rainier_defconfig b/arch/powerpc/configs/44x/rainier_defconfig index 91c2aff9bd55..b8c9ee45d0a2 100644 --- a/arch/powerpc/configs/44x/rainier_defconfig +++ b/arch/powerpc/configs/44x/rainier_defconfig @@ -22,7 +22,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/44x/redwood_defconfig b/arch/powerpc/configs/44x/redwood_defconfig index 7fddf3fe275c..a4bb048448da 100644 --- a/arch/powerpc/configs/44x/redwood_defconfig +++ b/arch/powerpc/configs/44x/redwood_defconfig @@ -24,7 +24,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y @@ -41,7 +40,6 @@ CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_SG=y CONFIG_FUSION=y CONFIG_FUSION_SAS=y -CONFIG_I2O=y CONFIG_NETDEVICES=y CONFIG_IBM_EMAC=y CONFIG_IBM_EMAC_RXB=256 diff --git a/arch/powerpc/configs/44x/sam440ep_defconfig b/arch/powerpc/configs/44x/sam440ep_defconfig index 6928012f3813..63302fbd184d 100644 --- a/arch/powerpc/configs/44x/sam440ep_defconfig +++ b/arch/powerpc/configs/44x/sam440ep_defconfig @@ -26,7 +26,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y @@ -85,9 +84,8 @@ CONFIG_RTC_DRV_M41T80_WDT=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -CONFIG_EXT3_FS_POSIX_ACL=y +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_REISERFS_FS=y CONFIG_AUTOFS4_FS=y CONFIG_ISO9660_FS=y diff --git a/arch/powerpc/configs/44x/sequoia_defconfig b/arch/powerpc/configs/44x/sequoia_defconfig index c294369cc39f..b3792fd8111d 100644 --- a/arch/powerpc/configs/44x/sequoia_defconfig +++ b/arch/powerpc/configs/44x/sequoia_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/44x/taishan_defconfig b/arch/powerpc/configs/44x/taishan_defconfig index e779228d6cd6..ff6f86241418 100644 --- a/arch/powerpc/configs/44x/taishan_defconfig +++ b/arch/powerpc/configs/44x/taishan_defconfig @@ -21,7 +21,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y diff --git a/arch/powerpc/configs/44x/virtex5_defconfig b/arch/powerpc/configs/44x/virtex5_defconfig index 53d0300b3390..ce052064bcbb 100644 --- a/arch/powerpc/configs/44x/virtex5_defconfig +++ b/arch/powerpc/configs/44x/virtex5_defconfig @@ -26,7 +26,6 @@ CONFIG_IP_MULTICAST=y CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y -# CONFIG_INET_LRO is not set CONFIG_NETFILTER=y CONFIG_IP_NF_IPTABLES=m CONFIG_IP_NF_FILTER=m diff --git a/arch/powerpc/configs/44x/warp_defconfig b/arch/powerpc/configs/44x/warp_defconfig index ee434375fc24..ab932488e68b 100644 --- a/arch/powerpc/configs/44x/warp_defconfig +++ b/arch/powerpc/configs/44x/warp_defconfig @@ -23,7 +23,6 @@ CONFIG_UNIX=y CONFIG_INET=y CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_NETFILTER=y CONFIG_VLAN_8021Q=y @@ -73,9 +72,7 @@ CONFIG_LEDS_GPIO=y CONFIG_LEDS_TRIGGERS=y CONFIG_LEDS_TRIGGER_DEFAULT_ON=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -# CONFIG_EXT3_FS_XATTR is not set +CONFIG_EXT4_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_PROC_KCORE=y diff --git a/arch/powerpc/configs/52xx/cm5200_defconfig b/arch/powerpc/configs/52xx/cm5200_defconfig index 19fad0e0016e..c1faac800806 100644 --- a/arch/powerpc/configs/52xx/cm5200_defconfig +++ b/arch/powerpc/configs/52xx/cm5200_defconfig @@ -22,7 +22,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -61,8 +60,7 @@ CONFIG_USB_STORAGE=y CONFIG_DMADEVICES=y CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_PROC_KCORE=y diff --git a/arch/powerpc/configs/52xx/lite5200b_defconfig b/arch/powerpc/configs/52xx/lite5200b_defconfig index 5f40ba92a39a..9493b02ac660 100644 --- a/arch/powerpc/configs/52xx/lite5200b_defconfig +++ b/arch/powerpc/configs/52xx/lite5200b_defconfig @@ -24,7 +24,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -53,8 +52,7 @@ CONFIG_I2C_MPC=y CONFIG_DMADEVICES=y CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/52xx/motionpro_defconfig b/arch/powerpc/configs/52xx/motionpro_defconfig index 909e185a88d1..fe8126bc1655 100644 --- a/arch/powerpc/configs/52xx/motionpro_defconfig +++ b/arch/powerpc/configs/52xx/motionpro_defconfig @@ -22,7 +22,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -73,8 +72,7 @@ CONFIG_RTC_DRV_DS1307=y CONFIG_DMADEVICES=y CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_PROC_KCORE=y diff --git a/arch/powerpc/configs/52xx/pcm030_defconfig b/arch/powerpc/configs/52xx/pcm030_defconfig index 649a01a0044d..1554de6968ca 100644 --- a/arch/powerpc/configs/52xx/pcm030_defconfig +++ b/arch/powerpc/configs/52xx/pcm030_defconfig @@ -34,7 +34,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_INET_DIAG is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" @@ -74,8 +73,7 @@ CONFIG_RTC_DRV_PCF8563=m CONFIG_DMADEVICES=y CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=m -CONFIG_EXT3_FS=m -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=m # CONFIG_DNOTIFY is not set CONFIG_VFAT_FS=m CONFIG_FAT_DEFAULT_CODEPAGE=850 diff --git a/arch/powerpc/configs/52xx/tqm5200_defconfig b/arch/powerpc/configs/52xx/tqm5200_defconfig index efab8388ea92..b8b316b884aa 100644 --- a/arch/powerpc/configs/52xx/tqm5200_defconfig +++ b/arch/powerpc/configs/52xx/tqm5200_defconfig @@ -26,7 +26,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -75,8 +74,7 @@ CONFIG_RTC_DRV_DS1374=y CONFIG_DMADEVICES=y CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_PROC_KCORE=y diff --git a/arch/powerpc/configs/83xx/asp8347_defconfig b/arch/powerpc/configs/83xx/asp8347_defconfig index bcdfb07921fc..b60cac088a7b 100644 --- a/arch/powerpc/configs/83xx/asp8347_defconfig +++ b/arch/powerpc/configs/83xx/asp8347_defconfig @@ -26,7 +26,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -63,8 +62,7 @@ CONFIG_USB_EHCI_FSL=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1374=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_JFFS2_FS=y diff --git a/arch/powerpc/configs/83xx/kmeter1_defconfig b/arch/powerpc/configs/83xx/kmeter1_defconfig index 11a959283149..9547dcdd6489 100644 --- a/arch/powerpc/configs/83xx/kmeter1_defconfig +++ b/arch/powerpc/configs/83xx/kmeter1_defconfig @@ -28,7 +28,6 @@ CONFIG_IP_PNP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_TIPC=y CONFIG_BRIDGE=m diff --git a/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig b/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig index b47a41f77836..80aa844c1428 100644 --- a/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig +++ b/arch/powerpc/configs/83xx/mpc8313_rdb_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -79,8 +78,7 @@ CONFIG_RTC_CLASS=y CONFIG_RTC_INTF_DEV_UIE_EMUL=y CONFIG_RTC_DRV_DS1307=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_JFFS2_FS=y diff --git a/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig b/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig index e28c83f320c1..d89d13bc6901 100644 --- a/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig +++ b/arch/powerpc/configs/83xx/mpc8315_rdb_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -77,8 +76,7 @@ CONFIG_RTC_CLASS=y CONFIG_RTC_INTF_DEV_UIE_EMUL=y CONFIG_RTC_DRV_DS1307=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_JFFS2_FS=y diff --git a/arch/powerpc/configs/83xx/mpc832x_mds_defconfig b/arch/powerpc/configs/83xx/mpc832x_mds_defconfig index e84d35b848c0..e789518a2881 100644 --- a/arch/powerpc/configs/83xx/mpc832x_mds_defconfig +++ b/arch/powerpc/configs/83xx/mpc832x_mds_defconfig @@ -26,7 +26,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -52,8 +51,7 @@ CONFIG_WATCHDOG=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1374=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig b/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig index ae145f410590..917a49ca2bd1 100644 --- a/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig +++ b/arch/powerpc/configs/83xx/mpc832x_rdb_defconfig @@ -26,7 +26,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -64,8 +63,7 @@ CONFIG_USB_STORAGE=y CONFIG_MMC=y CONFIG_MMC_SPI=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_PROC_KCORE=y diff --git a/arch/powerpc/configs/83xx/mpc834x_itx_defconfig b/arch/powerpc/configs/83xx/mpc834x_itx_defconfig index 87fc15bce407..00f636e95cc8 100644 --- a/arch/powerpc/configs/83xx/mpc834x_itx_defconfig +++ b/arch/powerpc/configs/83xx/mpc834x_itx_defconfig @@ -24,7 +24,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -75,8 +74,7 @@ CONFIG_RTC_CLASS=y CONFIG_RTC_INTF_DEV_UIE_EMUL=y CONFIG_RTC_DRV_DS1307=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_PROC_KCORE=y diff --git a/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig b/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig index 9a2ff25a2e98..a539d44d1dba 100644 --- a/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig +++ b/arch/powerpc/configs/83xx/mpc834x_itxgp_defconfig @@ -24,7 +24,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -66,8 +65,7 @@ CONFIG_RTC_CLASS=y CONFIG_RTC_INTF_DEV_UIE_EMUL=y CONFIG_RTC_DRV_DS1307=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_PROC_KCORE=y diff --git a/arch/powerpc/configs/83xx/mpc834x_mds_defconfig b/arch/powerpc/configs/83xx/mpc834x_mds_defconfig index e44edc575549..9f0ddc830c82 100644 --- a/arch/powerpc/configs/83xx/mpc834x_mds_defconfig +++ b/arch/powerpc/configs/83xx/mpc834x_mds_defconfig @@ -25,7 +25,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -51,8 +50,7 @@ CONFIG_WATCHDOG=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1374=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/83xx/mpc836x_mds_defconfig b/arch/powerpc/configs/83xx/mpc836x_mds_defconfig index 94a7d85f1603..ceed4c1f0ab5 100644 --- a/arch/powerpc/configs/83xx/mpc836x_mds_defconfig +++ b/arch/powerpc/configs/83xx/mpc836x_mds_defconfig @@ -25,7 +25,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -57,8 +56,7 @@ CONFIG_WATCHDOG=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1374=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig b/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig index 761ed8ea0729..a6819bf3ef5e 100644 --- a/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig +++ b/arch/powerpc/configs/83xx/mpc836x_rdk_defconfig @@ -24,7 +24,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_MTD=y @@ -65,8 +64,7 @@ CONFIG_LOGO=y # CONFIG_LOGO_LINUX_MONO is not set # CONFIG_USB_SUPPORT is not set CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_JFFS2_FS=y diff --git a/arch/powerpc/configs/83xx/mpc837x_mds_defconfig b/arch/powerpc/configs/83xx/mpc837x_mds_defconfig index bcf1b48cc9e6..4bd1992e4d98 100644 --- a/arch/powerpc/configs/83xx/mpc837x_mds_defconfig +++ b/arch/powerpc/configs/83xx/mpc837x_mds_defconfig @@ -22,7 +22,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -50,8 +49,7 @@ CONFIG_I2C_CHARDEV=y CONFIG_I2C_MPC=y CONFIG_WATCHDOG=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig b/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig index f0f0ebf75125..2d4bb63882b8 100644 --- a/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig +++ b/arch/powerpc/configs/83xx/mpc837x_rdb_defconfig @@ -24,7 +24,6 @@ CONFIG_SYN_COOKIES=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -77,8 +76,7 @@ CONFIG_USB_MON=y CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_FSL=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/83xx/sbc834x_defconfig b/arch/powerpc/configs/83xx/sbc834x_defconfig index d2e4d82de14d..b3380dbd1925 100644 --- a/arch/powerpc/configs/83xx/sbc834x_defconfig +++ b/arch/powerpc/configs/83xx/sbc834x_defconfig @@ -22,7 +22,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -65,9 +64,7 @@ CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_FSL=y CONFIG_USB_STORAGE=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -# CONFIG_EXT3_FS_XATTR is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/85xx/ge_imp3a_defconfig b/arch/powerpc/configs/85xx/ge_imp3a_defconfig index b0939dd9ad6f..c79283be5680 100644 --- a/arch/powerpc/configs/85xx/ge_imp3a_defconfig +++ b/arch/powerpc/configs/85xx/ge_imp3a_defconfig @@ -165,10 +165,8 @@ CONFIG_FSL_DMA=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -CONFIG_EXT3_FS_POSIX_ACL=y CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_FUSE_FS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y diff --git a/arch/powerpc/configs/85xx/kmp204x_defconfig b/arch/powerpc/configs/85xx/kmp204x_defconfig index e94d3eb4a8c1..aaaaa609cd24 100644 --- a/arch/powerpc/configs/85xx/kmp204x_defconfig +++ b/arch/powerpc/configs/85xx/kmp204x_defconfig @@ -64,7 +64,6 @@ CONFIG_IP_PIMSM_V2=y CONFIG_INET_AH=y CONFIG_INET_ESP=y CONFIG_INET_IPCOMP=y -# CONFIG_INET_LRO is not set CONFIG_IPV6=y CONFIG_IP_SCTP=m CONFIG_TIPC=y @@ -189,7 +188,7 @@ CONFIG_RTC_DRV_DS3232=y CONFIG_RTC_DRV_CMOS=y CONFIG_UIO=y CONFIG_STAGING=y -CONFIG_CLK_PPC_CORENET=y +CONFIG_CLK_QORIQ=y CONFIG_EXT2_FS=y CONFIG_NTFS_FS=y CONFIG_PROC_KCORE=y diff --git a/arch/powerpc/configs/85xx/ksi8560_defconfig b/arch/powerpc/configs/85xx/ksi8560_defconfig index 6f753a71fe5d..bd814dfb0bbd 100644 --- a/arch/powerpc/configs/85xx/ksi8560_defconfig +++ b/arch/powerpc/configs/85xx/ksi8560_defconfig @@ -21,7 +21,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -49,8 +48,7 @@ CONFIG_SERIAL_CPM=y CONFIG_SERIAL_CPM_CONSOLE=y CONFIG_GEN_RTC=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/85xx/mpc8540_ads_defconfig b/arch/powerpc/configs/85xx/mpc8540_ads_defconfig index e38c373f2edf..32af10def641 100644 --- a/arch/powerpc/configs/85xx/mpc8540_ads_defconfig +++ b/arch/powerpc/configs/85xx/mpc8540_ads_defconfig @@ -22,7 +22,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -41,8 +40,7 @@ CONFIG_SERIAL_8250_CONSOLE=y # CONFIG_HW_RANDOM is not set CONFIG_GEN_RTC=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/85xx/mpc8560_ads_defconfig b/arch/powerpc/configs/85xx/mpc8560_ads_defconfig index 48fc8e3a7be0..a52b2170ee33 100644 --- a/arch/powerpc/configs/85xx/mpc8560_ads_defconfig +++ b/arch/powerpc/configs/85xx/mpc8560_ads_defconfig @@ -21,7 +21,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -44,8 +43,7 @@ CONFIG_SERIAL_CPM=y CONFIG_SERIAL_CPM_CONSOLE=y CONFIG_GEN_RTC=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig b/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig index ecb0c3bf8796..002bb48abaa3 100644 --- a/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig +++ b/arch/powerpc/configs/85xx/mpc85xx_cds_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -46,8 +45,7 @@ CONFIG_SERIAL_8250_CONSOLE=y # CONFIG_HW_RANDOM is not set CONFIG_GEN_RTC=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/85xx/sbc8548_defconfig b/arch/powerpc/configs/85xx/sbc8548_defconfig index 72b7ccfbe2c2..97ae02377cf3 100644 --- a/arch/powerpc/configs/85xx/sbc8548_defconfig +++ b/arch/powerpc/configs/85xx/sbc8548_defconfig @@ -20,7 +20,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set diff --git a/arch/powerpc/configs/85xx/socrates_defconfig b/arch/powerpc/configs/85xx/socrates_defconfig index 0ad7bd5ee6b6..13579cb30539 100644 --- a/arch/powerpc/configs/85xx/socrates_defconfig +++ b/arch/powerpc/configs/85xx/socrates_defconfig @@ -22,7 +22,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_CAN=y CONFIG_MTD=y @@ -79,8 +78,7 @@ CONFIG_USB_OHCI_HCD_PPC_OF_BE=y CONFIG_USB_STORAGE=y CONFIG_RTC_CLASS=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_JFFS2_FS=y diff --git a/arch/powerpc/configs/85xx/stx_gp3_defconfig b/arch/powerpc/configs/85xx/stx_gp3_defconfig index b45190556c0c..384926f3ce1d 100644 --- a/arch/powerpc/configs/85xx/stx_gp3_defconfig +++ b/arch/powerpc/configs/85xx/stx_gp3_defconfig @@ -17,7 +17,6 @@ CONFIG_UNIX=y CONFIG_INET=y CONFIG_IP_PNP=y CONFIG_IP_PNP_BOOTP=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_NETFILTER=y CONFIG_IP_NF_IPTABLES=m @@ -53,8 +52,7 @@ CONFIG_AGP=m CONFIG_DRM=m CONFIG_SOUND=m CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_AUTOFS4_FS=y CONFIG_ISO9660_FS=m CONFIG_UDF_FS=m diff --git a/arch/powerpc/configs/85xx/tqm8540_defconfig b/arch/powerpc/configs/85xx/tqm8540_defconfig index 4daaf2943b44..908f3885f4a5 100644 --- a/arch/powerpc/configs/85xx/tqm8540_defconfig +++ b/arch/powerpc/configs/85xx/tqm8540_defconfig @@ -20,7 +20,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_MTD=y CONFIG_MTD_CMDLINE_PARTS=y @@ -50,8 +49,7 @@ CONFIG_I2C_MPC=y CONFIG_HWMON_DEBUG_CHIP=y CONFIG_SENSORS_LM75=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_JFFS2_FS=y diff --git a/arch/powerpc/configs/85xx/tqm8541_defconfig b/arch/powerpc/configs/85xx/tqm8541_defconfig index bb402b3cf786..f47e57610b7c 100644 --- a/arch/powerpc/configs/85xx/tqm8541_defconfig +++ b/arch/powerpc/configs/85xx/tqm8541_defconfig @@ -20,7 +20,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_MTD=y CONFIG_MTD_CMDLINE_PARTS=y @@ -52,8 +51,7 @@ CONFIG_I2C_MPC=y CONFIG_HWMON_DEBUG_CHIP=y CONFIG_SENSORS_LM75=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_JFFS2_FS=y diff --git a/arch/powerpc/configs/85xx/tqm8548_defconfig b/arch/powerpc/configs/85xx/tqm8548_defconfig index 685d0fb132d6..42f5d0a7698e 100644 --- a/arch/powerpc/configs/85xx/tqm8548_defconfig +++ b/arch/powerpc/configs/85xx/tqm8548_defconfig @@ -28,7 +28,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set diff --git a/arch/powerpc/configs/85xx/tqm8555_defconfig b/arch/powerpc/configs/85xx/tqm8555_defconfig index 02a931d4e954..71552b7929cd 100644 --- a/arch/powerpc/configs/85xx/tqm8555_defconfig +++ b/arch/powerpc/configs/85xx/tqm8555_defconfig @@ -20,7 +20,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_MTD=y CONFIG_MTD_CMDLINE_PARTS=y @@ -52,8 +51,7 @@ CONFIG_I2C_MPC=y CONFIG_HWMON_DEBUG_CHIP=y CONFIG_SENSORS_LM75=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_JFFS2_FS=y diff --git a/arch/powerpc/configs/85xx/tqm8560_defconfig b/arch/powerpc/configs/85xx/tqm8560_defconfig index 633d5b759a36..25aac973d6d7 100644 --- a/arch/powerpc/configs/85xx/tqm8560_defconfig +++ b/arch/powerpc/configs/85xx/tqm8560_defconfig @@ -20,7 +20,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_MTD=y CONFIG_MTD_CMDLINE_PARTS=y @@ -52,8 +51,7 @@ CONFIG_I2C_MPC=y CONFIG_HWMON_DEBUG_CHIP=y CONFIG_SENSORS_LM75=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_JFFS2_FS=y diff --git a/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig b/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig index 858b539d004b..dbd961de251e 100644 --- a/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig +++ b/arch/powerpc/configs/85xx/xes_mpc85xx_defconfig @@ -54,7 +54,6 @@ CONFIG_IP_PIMSM_V2=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set CONFIG_IPV6=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_MTD=y @@ -124,8 +123,7 @@ CONFIG_RTC_DRV_CMOS=y CONFIG_DMADEVICES=y CONFIG_FSL_DMA=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_ZISOFS=y diff --git a/arch/powerpc/configs/86xx-hw.config b/arch/powerpc/configs/86xx-hw.config index f91f8895fc93..d3dd6b8865c0 100644 --- a/arch/powerpc/configs/86xx-hw.config +++ b/arch/powerpc/configs/86xx-hw.config @@ -74,9 +74,9 @@ CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_DETECT_IRQ=y CONFIG_SERIAL_8250_EXTENDED=y CONFIG_SERIAL_8250_MANY_PORTS=y -CONFIG_SERIAL_8250_NR_UARTS=2 +CONFIG_SERIAL_8250_NR_UARTS=5 CONFIG_SERIAL_8250_RSA=y -CONFIG_SERIAL_8250_RUNTIME_UARTS=2 +CONFIG_SERIAL_8250_RUNTIME_UARTS=5 CONFIG_SERIAL_8250_SHARE_IRQ=y CONFIG_SERIAL_8250=y CONFIG_SERIO_LIBPS2=y diff --git a/arch/powerpc/configs/adder875_defconfig b/arch/powerpc/configs/adder875_defconfig index d89ff40d39b7..6a3f825452e9 100644 --- a/arch/powerpc/configs/adder875_defconfig +++ b/arch/powerpc/configs/adder875_defconfig @@ -24,7 +24,6 @@ CONFIG_SYN_COOKIES=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set diff --git a/arch/powerpc/configs/amigaone_defconfig b/arch/powerpc/configs/amigaone_defconfig index 84f1b4140579..8b83ce8a01e7 100644 --- a/arch/powerpc/configs/amigaone_defconfig +++ b/arch/powerpc/configs/amigaone_defconfig @@ -29,7 +29,6 @@ CONFIG_SYN_COOKIES=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_NETFILTER=y # CONFIG_NETFILTER_ADVANCED is not set @@ -106,7 +105,6 @@ CONFIG_USB_STORAGE=m CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_CMOS=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y CONFIG_EXT4_FS=y CONFIG_ISO9660_FS=y CONFIG_MSDOS_FS=m diff --git a/arch/powerpc/configs/c2k_defconfig b/arch/powerpc/configs/c2k_defconfig index 340685caa7b8..7c9d95370150 100644 --- a/arch/powerpc/configs/c2k_defconfig +++ b/arch/powerpc/configs/c2k_defconfig @@ -306,15 +306,13 @@ CONFIG_INFINIBAND=m CONFIG_INFINIBAND_USER_MAD=m CONFIG_INFINIBAND_USER_ACCESS=m CONFIG_INFINIBAND_MTHCA=m -CONFIG_INFINIBAND_AMSO1100=m CONFIG_INFINIBAND_IPOIB=m CONFIG_INFINIBAND_IPOIB_CM=y CONFIG_INFINIBAND_SRP=m CONFIG_DMADEVICES=y -CONFIG_EXT3_FS=m -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y +CONFIG_EXT4_FS=m +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y CONFIG_QUOTA=y CONFIG_QFMT_V2=y CONFIG_AUTOFS4_FS=m diff --git a/arch/powerpc/configs/cell_defconfig b/arch/powerpc/configs/cell_defconfig index db328e618bb9..7b6f30dece34 100644 --- a/arch/powerpc/configs/cell_defconfig +++ b/arch/powerpc/configs/cell_defconfig @@ -184,7 +184,7 @@ CONFIG_EDAC_MM_EDAC=y CONFIG_EDAC_CELL=y CONFIG_UIO=m CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y +CONFIG_EXT4_FS=y CONFIG_AUTOFS4_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/powerpc/configs/chrp32_defconfig b/arch/powerpc/configs/chrp32_defconfig index 253a9f200097..ac9a50da2dc6 100644 --- a/arch/powerpc/configs/chrp32_defconfig +++ b/arch/powerpc/configs/chrp32_defconfig @@ -110,7 +110,6 @@ CONFIG_USB_OHCI_HCD=y CONFIG_USB_UHCI_HCD=y CONFIG_USB_STORAGE=m CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y CONFIG_EXT4_FS=y CONFIG_ISO9660_FS=y CONFIG_MSDOS_FS=m diff --git a/arch/powerpc/configs/ep8248e_defconfig b/arch/powerpc/configs/ep8248e_defconfig index 7c137041f1d6..3403b85f9d81 100644 --- a/arch/powerpc/configs/ep8248e_defconfig +++ b/arch/powerpc/configs/ep8248e_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set CONFIG_NETFILTER=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -50,9 +49,7 @@ CONFIG_SERIAL_CPM_CONSOLE=y # CONFIG_HWMON is not set # CONFIG_USB_SUPPORT is not set CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -# CONFIG_EXT3_FS_XATTR is not set +CONFIG_EXT4_FS=y CONFIG_AUTOFS4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y diff --git a/arch/powerpc/configs/ep88xc_defconfig b/arch/powerpc/configs/ep88xc_defconfig index ee96be889dac..95411aeeeb8d 100644 --- a/arch/powerpc/configs/ep88xc_defconfig +++ b/arch/powerpc/configs/ep88xc_defconfig @@ -26,7 +26,6 @@ CONFIG_SYN_COOKIES=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set diff --git a/arch/powerpc/configs/fsl-emb-nonhw.config b/arch/powerpc/configs/fsl-emb-nonhw.config index 41e4d359524d..1a61e81ab0cd 100644 --- a/arch/powerpc/configs/fsl-emb-nonhw.config +++ b/arch/powerpc/configs/fsl-emb-nonhw.config @@ -33,8 +33,7 @@ CONFIG_DUMMY=y CONFIG_EFS_FS=m CONFIG_EXPERT=y CONFIG_EXT2_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -CONFIG_EXT3_FS=y +CONFIG_EXT4_FS=y CONFIG_FB=y CONFIG_FHANDLE=y CONFIG_FIXED_PHY=y @@ -55,7 +54,6 @@ CONFIG_IKCONFIG=y CONFIG_INET_AH=y CONFIG_INET_ESP=y CONFIG_INET_IPCOMP=y -# CONFIG_INET_LRO is not set # CONFIG_INET_XFRM_MODE_BEET is not set CONFIG_INET=y CONFIG_IP_ADVANCED_ROUTER=y diff --git a/arch/powerpc/configs/g5_defconfig b/arch/powerpc/configs/g5_defconfig index 1d9ad8500909..3b2511c090d8 100644 --- a/arch/powerpc/configs/g5_defconfig +++ b/arch/powerpc/configs/g5_defconfig @@ -216,14 +216,13 @@ CONFIG_USB_SERIAL_CYBERJACK=m CONFIG_USB_SERIAL_XIRCOM=m CONFIG_USB_SERIAL_OMNINET=m CONFIG_USB_APPLEDISPLAY=m +CONFIG_FS_DAX=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT2_FS_SECURITY=y -CONFIG_EXT2_FS_XIP=y -CONFIG_EXT3_FS=y -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y CONFIG_EXT4_FS=y CONFIG_REISERFS_FS=y CONFIG_REISERFS_FS_XATTR=y diff --git a/arch/powerpc/configs/gamecube_defconfig b/arch/powerpc/configs/gamecube_defconfig index 6c6c60f1aba4..c0eec4a5df4e 100644 --- a/arch/powerpc/configs/gamecube_defconfig +++ b/arch/powerpc/configs/gamecube_defconfig @@ -32,7 +32,6 @@ CONFIG_IP_PNP_RARP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_INET_DIAG is not set # CONFIG_IPV6 is not set # CONFIG_WIRELESS is not set @@ -76,9 +75,7 @@ CONFIG_SND_SEQUENCER_OSS=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_GENERIC=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -# CONFIG_EXT3_FS_XATTR is not set +CONFIG_EXT4_FS=y CONFIG_ISO9660_FS=y CONFIG_JOLIET=y CONFIG_MSDOS_FS=y diff --git a/arch/powerpc/configs/holly_defconfig b/arch/powerpc/configs/holly_defconfig index 5e0f2551e5c7..e56e80090529 100644 --- a/arch/powerpc/configs/holly_defconfig +++ b/arch/powerpc/configs/holly_defconfig @@ -25,7 +25,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -52,7 +51,7 @@ CONFIG_SERIAL_OF_PLATFORM=y # CONFIG_HW_RANDOM is not set CONFIG_GEN_RTC=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/linkstation_defconfig b/arch/powerpc/configs/linkstation_defconfig index 62ae92956d05..b413c19d7031 100644 --- a/arch/powerpc/configs/linkstation_defconfig +++ b/arch/powerpc/configs/linkstation_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_MULTICAST=y CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_NETFILTER=y CONFIG_NF_CONNTRACK=m @@ -109,8 +108,7 @@ CONFIG_USB_SERIAL_FTDI_SIO=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_RS5C372=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_XFS_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/powerpc/configs/maple_defconfig b/arch/powerpc/configs/maple_defconfig index ac9666f8abf1..27abfab31219 100644 --- a/arch/powerpc/configs/maple_defconfig +++ b/arch/powerpc/configs/maple_defconfig @@ -35,7 +35,6 @@ CONFIG_INET=y CONFIG_IP_MULTICAST=y CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_BLK_DEV_RAM=y @@ -102,9 +101,7 @@ CONFIG_USB_SERIAL_KEYSPAN_USA49W=y CONFIG_USB_SERIAL_KEYSPAN_USA49WLC=y CONFIG_USB_SERIAL_TI=m CONFIG_EXT2_FS=y -CONFIG_EXT2_FS_XIP=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_FS_XATTR is not set +CONFIG_FS_DAX=y CONFIG_EXT4_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y diff --git a/arch/powerpc/configs/mgcoge_defconfig b/arch/powerpc/configs/mgcoge_defconfig index 666922c5b572..197acaa026eb 100644 --- a/arch/powerpc/configs/mgcoge_defconfig +++ b/arch/powerpc/configs/mgcoge_defconfig @@ -27,7 +27,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_NETFILTER=y CONFIG_TIPC=y diff --git a/arch/powerpc/configs/mpc512x_defconfig b/arch/powerpc/configs/mpc512x_defconfig index d16d6c5cb282..0b4854cf26cb 100644 --- a/arch/powerpc/configs/mpc512x_defconfig +++ b/arch/powerpc/configs/mpc512x_defconfig @@ -27,7 +27,6 @@ CONFIG_IP_PNP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_INET_DIAG is not set # CONFIG_IPV6 is not set CONFIG_CAN=y @@ -53,7 +52,7 @@ CONFIG_MTD_UBI=y CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_COUNT=1 CONFIG_BLK_DEV_RAM_SIZE=8192 -CONFIG_BLK_DEV_XIP=y +CONFIG_BLK_DEV_RAM_DAX=y CONFIG_EEPROM_AT24=y CONFIG_EEPROM_AT25=y CONFIG_SCSI=y @@ -113,10 +112,9 @@ CONFIG_RTC_DRV_MPC5121=y CONFIG_DMADEVICES=y CONFIG_MPC512X_DMA=y CONFIG_MPC512x_LPBFIFO=y +CONFIG_FS_DAX=y CONFIG_EXT2_FS=y -CONFIG_EXT2_FS_XIP=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y # CONFIG_DNOTIFY is not set CONFIG_VFAT_FS=y CONFIG_TMPFS=y diff --git a/arch/powerpc/configs/mpc5200_defconfig b/arch/powerpc/configs/mpc5200_defconfig index 9fd041bfd778..88336d0df0d6 100644 --- a/arch/powerpc/configs/mpc5200_defconfig +++ b/arch/powerpc/configs/mpc5200_defconfig @@ -26,7 +26,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_MTD=y @@ -114,8 +113,7 @@ CONFIG_RTC_DRV_PCF8563=m CONFIG_DMADEVICES=y CONFIG_PPC_BESTCOMM=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_MSDOS_FS=y CONFIG_VFAT_FS=y CONFIG_PROC_KCORE=y diff --git a/arch/powerpc/configs/mpc7448_hpc2_defconfig b/arch/powerpc/configs/mpc7448_hpc2_defconfig index e2647d5bb605..d933326b4cf9 100644 --- a/arch/powerpc/configs/mpc7448_hpc2_defconfig +++ b/arch/powerpc/configs/mpc7448_hpc2_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -49,8 +48,7 @@ CONFIG_SERIAL_8250_CONSOLE=y # CONFIG_HW_RANDOM is not set CONFIG_GEN_RTC=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/mpc8272_ads_defconfig b/arch/powerpc/configs/mpc8272_ads_defconfig index 825b052176af..4cb0f617c0d6 100644 --- a/arch/powerpc/configs/mpc8272_ads_defconfig +++ b/arch/powerpc/configs/mpc8272_ads_defconfig @@ -22,7 +22,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set CONFIG_NETFILTER=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -56,8 +55,7 @@ CONFIG_SERIAL_CPM_CONSOLE=y # CONFIG_HWMON is not set # CONFIG_USB_SUPPORT is not set CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_AUTOFS4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y diff --git a/arch/powerpc/configs/mpc83xx_defconfig b/arch/powerpc/configs/mpc83xx_defconfig index 671e220a9a98..6574477fd726 100644 --- a/arch/powerpc/configs/mpc83xx_defconfig +++ b/arch/powerpc/configs/mpc83xx_defconfig @@ -37,7 +37,6 @@ CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y CONFIG_INET_ESP=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_DEVTMPFS=y @@ -101,8 +100,7 @@ CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1307=y CONFIG_RTC_DRV_DS1374=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/mpc866_ads_defconfig b/arch/powerpc/configs/mpc866_ads_defconfig index 321412c5dae4..998454471a48 100644 --- a/arch/powerpc/configs/mpc866_ads_defconfig +++ b/arch/powerpc/configs/mpc866_ads_defconfig @@ -24,7 +24,6 @@ CONFIG_INET=y CONFIG_IP_MULTICAST=y CONFIG_IP_PNP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_BLK_DEV_LOOP=y CONFIG_NETDEVICES=y @@ -37,8 +36,7 @@ CONFIG_SERIAL_CPM_CONSOLE=y CONFIG_GEN_RTC=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_TMPFS=y CONFIG_CRAMFS=y CONFIG_NFS_FS=y diff --git a/arch/powerpc/configs/mpc86xx_basic_defconfig b/arch/powerpc/configs/mpc86xx_basic_defconfig index 33af5c5de105..3283f0586e11 100644 --- a/arch/powerpc/configs/mpc86xx_basic_defconfig +++ b/arch/powerpc/configs/mpc86xx_basic_defconfig @@ -8,3 +8,4 @@ CONFIG_GEF_SBC610=y CONFIG_MPC8610_HPCD=y CONFIG_MPC8641_HPCN=y CONFIG_SBC8641D=y +CONFIG_MVME7100=y diff --git a/arch/powerpc/configs/mpc885_ads_defconfig b/arch/powerpc/configs/mpc885_ads_defconfig index 2a10f98d4ee5..91f53f1bec5d 100644 --- a/arch/powerpc/configs/mpc885_ads_defconfig +++ b/arch/powerpc/configs/mpc885_ads_defconfig @@ -25,7 +25,6 @@ CONFIG_SYN_COOKIES=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set diff --git a/arch/powerpc/configs/mvme5100_defconfig b/arch/powerpc/configs/mvme5100_defconfig index 525a2cb500a7..139add95a16a 100644 --- a/arch/powerpc/configs/mvme5100_defconfig +++ b/arch/powerpc/configs/mvme5100_defconfig @@ -32,7 +32,6 @@ CONFIG_IP_MULTICAST=y CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_NETFILTER=y CONFIG_NF_CONNTRACK=m @@ -92,8 +91,7 @@ CONFIG_I2C_MPC=y # CONFIG_USB_SUPPORT is not set # CONFIG_IOMMU_SUPPORT is not set CONFIG_EXT2_FS=m -CONFIG_EXT3_FS=m -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=m CONFIG_XFS_FS=m CONFIG_ISO9660_FS=m CONFIG_JOLIET=y diff --git a/arch/powerpc/configs/pasemi_defconfig b/arch/powerpc/configs/pasemi_defconfig index 8f94782eb907..76f4edd441d3 100644 --- a/arch/powerpc/configs/pasemi_defconfig +++ b/arch/powerpc/configs/pasemi_defconfig @@ -152,8 +152,7 @@ CONFIG_RTC_DRV_DS1307=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_AUTOFS4_FS=y CONFIG_ISO9660_FS=y CONFIG_UDF_FS=y diff --git a/arch/powerpc/configs/pmac32_defconfig b/arch/powerpc/configs/pmac32_defconfig index 3f6c9a6c815c..e5a674d4a716 100644 --- a/arch/powerpc/configs/pmac32_defconfig +++ b/arch/powerpc/configs/pmac32_defconfig @@ -40,7 +40,6 @@ CONFIG_INET_AH=y CONFIG_INET_ESP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_NETFILTER=y CONFIG_NF_CONNTRACK=m @@ -281,10 +280,8 @@ CONFIG_USB_SERIAL_KEYSPAN_USA49WLC=y CONFIG_USB_APPLEDISPLAY=m CONFIG_LEDS_TRIGGER_DEFAULT_ON=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -CONFIG_EXT3_FS_POSIX_ACL=y CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_AUTOFS4_FS=m CONFIG_FUSE_FS=m CONFIG_ISO9660_FS=y diff --git a/arch/powerpc/configs/powernv_defconfig b/arch/powerpc/configs/powernv_defconfig index 045031048f8d..dce352e9153b 100644 --- a/arch/powerpc/configs/powernv_defconfig +++ b/arch/powerpc/configs/powernv_defconfig @@ -80,6 +80,7 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_DEVTMPFS=y CONFIG_DEVTMPFS_MOUNT=y CONFIG_MTD=y +CONFIG_MTD_BLOCK=y CONFIG_MTD_POWERNV_FLASH=y CONFIG_PARPORT=m CONFIG_PARPORT_PC=m @@ -181,6 +182,7 @@ CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_JSM=m CONFIG_VIRTIO_CONSOLE=m +CONFIG_POWERNV_OP_PANEL=m CONFIG_IPMI_HANDLER=y CONFIG_IPMI_DEVICE_INTERFACE=y CONFIG_IPMI_POWERNV=y @@ -233,9 +235,9 @@ CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT2_FS_SECURITY=y -CONFIG_EXT3_FS=y -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y +CONFIG_EXT4_FS=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y CONFIG_REISERFS_FS=y CONFIG_REISERFS_FS_XATTR=y CONFIG_REISERFS_FS_POSIX_ACL=y diff --git a/arch/powerpc/configs/ppc40x_defconfig b/arch/powerpc/configs/ppc40x_defconfig index a43bf6ea10fb..370c0bbcff71 100644 --- a/arch/powerpc/configs/ppc40x_defconfig +++ b/arch/powerpc/configs/ppc40x_defconfig @@ -25,7 +25,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y CONFIG_MTD=y @@ -67,8 +66,7 @@ CONFIG_THERMAL=y CONFIG_FB=m CONFIG_FB_XILINX=m CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=m -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=m CONFIG_VFAT_FS=m CONFIG_PROC_KCORE=y CONFIG_TMPFS=y diff --git a/arch/powerpc/configs/ppc44x_defconfig b/arch/powerpc/configs/ppc44x_defconfig index bbc7f76d52c8..2766e8f590bc 100644 --- a/arch/powerpc/configs/ppc44x_defconfig +++ b/arch/powerpc/configs/ppc44x_defconfig @@ -35,7 +35,6 @@ CONFIG_IP_PNP_BOOTP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set CONFIG_BRIDGE=m CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_CONNECTOR=y @@ -89,8 +88,7 @@ CONFIG_USB_OHCI_HCD_PPC_OF_BE=y # CONFIG_USB_OHCI_HCD_PCI is not set CONFIG_USB_STORAGE=m CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=m -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=m CONFIG_VFAT_FS=m CONFIG_PROC_KCORE=y CONFIG_TMPFS=y diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig index b041fb607376..0a8d250cb97e 100644 --- a/arch/powerpc/configs/ppc64_defconfig +++ b/arch/powerpc/configs/ppc64_defconfig @@ -247,7 +247,6 @@ CONFIG_INFINIBAND=m CONFIG_INFINIBAND_USER_MAD=m CONFIG_INFINIBAND_USER_ACCESS=m CONFIG_INFINIBAND_MTHCA=m -CONFIG_INFINIBAND_EHCA=m CONFIG_INFINIBAND_CXGB3=m CONFIG_INFINIBAND_CXGB4=m CONFIG_MLX4_INFINIBAND=m @@ -262,14 +261,11 @@ CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1307=y CONFIG_VIRTIO_PCI=m CONFIG_VIRTIO_BALLOON=m +CONFIG_FS_DAX=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT2_FS_SECURITY=y -CONFIG_EXT2_FS_XIP=y -CONFIG_EXT3_FS=y -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y diff --git a/arch/powerpc/configs/ppc64e_defconfig b/arch/powerpc/configs/ppc64e_defconfig index ddf9773458cf..fd2edd650c20 100644 --- a/arch/powerpc/configs/ppc64e_defconfig +++ b/arch/powerpc/configs/ppc64e_defconfig @@ -178,15 +178,11 @@ CONFIG_EDAC=y CONFIG_EDAC_MM_EDAC=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1307=y +CONFIG_FS_DAX=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT2_FS_SECURITY=y -CONFIG_EXT2_FS_XIP=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig index 1dde0be2be30..8fbf49801233 100644 --- a/arch/powerpc/configs/ppc6xx_defconfig +++ b/arch/powerpc/configs/ppc6xx_defconfig @@ -512,7 +512,6 @@ CONFIG_E1000E=m CONFIG_IGB=m CONFIG_IXGB=m CONFIG_IXGBE=m -CONFIG_IP1000=m CONFIG_MV643XX_ETH=m CONFIG_SKGE=m CONFIG_SKY2=m @@ -1029,14 +1028,14 @@ CONFIG_UIO_CIF=m CONFIG_UIO_PDRV_GENIRQ=m CONFIG_VIRTIO_PCI=m CONFIG_VIRTIO_BALLOON=m +CONFIG_FS_DAX=y CONFIG_EXT2_FS=m CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT2_FS_SECURITY=y -CONFIG_EXT2_FS_XIP=y -CONFIG_EXT3_FS=m -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y +CONFIG_EXT4_FS=m +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y CONFIG_EXT4_FS=y CONFIG_JBD2_DEBUG=y CONFIG_REISERFS_FS=m diff --git a/arch/powerpc/configs/pq2fads_defconfig b/arch/powerpc/configs/pq2fads_defconfig index 3e336ee8bb4a..50b2bad51d0a 100644 --- a/arch/powerpc/configs/pq2fads_defconfig +++ b/arch/powerpc/configs/pq2fads_defconfig @@ -23,7 +23,6 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_IP_PNP_BOOTP=y CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set CONFIG_NETFILTER=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" # CONFIG_FW_LOADER is not set @@ -40,7 +39,6 @@ CONFIG_MTD_CFI_I4=y CONFIG_MTD_CFI_INTELEXT=y CONFIG_MTD_PHYSMAP_OF=y CONFIG_BLK_DEV_LOOP=y -CONFIG_IDE=y CONFIG_NETDEVICES=y CONFIG_TUN=y CONFIG_FS_ENET=y @@ -59,8 +57,7 @@ CONFIG_SERIAL_CPM_CONSOLE=y CONFIG_USB_GADGET=y CONFIG_USB_ETH=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_AUTOFS4_FS=y CONFIG_PROC_KCORE=y CONFIG_TMPFS=y diff --git a/arch/powerpc/configs/ps3_defconfig b/arch/powerpc/configs/ps3_defconfig index c40046074f8b..ee0ec5a682fc 100644 --- a/arch/powerpc/configs/ps3_defconfig +++ b/arch/powerpc/configs/ps3_defconfig @@ -51,7 +51,6 @@ CONFIG_IP_PNP_DHCP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_INET_DIAG is not set CONFIG_BT=m CONFIG_BT_RFCOMM=m diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig index 36871a4bfa54..654aeffc57ef 100644 --- a/arch/powerpc/configs/pseries_defconfig +++ b/arch/powerpc/configs/pseries_defconfig @@ -53,6 +53,7 @@ CONFIG_KEXEC=y CONFIG_IRQ_ALL_CPUS=y CONFIG_MEMORY_HOTPLUG=y CONFIG_MEMORY_HOTREMOVE=y +CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y CONFIG_KSM=y CONFIG_TRANSPARENT_HUGEPAGE=y CONFIG_PPC_64K_PAGES=y @@ -223,7 +224,6 @@ CONFIG_INFINIBAND=m CONFIG_INFINIBAND_USER_MAD=m CONFIG_INFINIBAND_USER_ACCESS=m CONFIG_INFINIBAND_MTHCA=m -CONFIG_INFINIBAND_EHCA=m CONFIG_INFINIBAND_CXGB3=m CONFIG_INFINIBAND_CXGB4=m CONFIG_MLX4_INFINIBAND=m @@ -233,14 +233,11 @@ CONFIG_INFINIBAND_SRP=m CONFIG_INFINIBAND_ISER=m CONFIG_VIRTIO_PCI=m CONFIG_VIRTIO_BALLOON=m +CONFIG_FS_DAX=y CONFIG_EXT2_FS=y CONFIG_EXT2_FS_XATTR=y CONFIG_EXT2_FS_POSIX_ACL=y CONFIG_EXT2_FS_SECURITY=y -CONFIG_EXT2_FS_XIP=y -CONFIG_EXT3_FS=y -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y diff --git a/arch/powerpc/configs/storcenter_defconfig b/arch/powerpc/configs/storcenter_defconfig index b5db7dffe86d..e9122b15e5fd 100644 --- a/arch/powerpc/configs/storcenter_defconfig +++ b/arch/powerpc/configs/storcenter_defconfig @@ -25,7 +25,6 @@ CONFIG_IP_PNP_DHCP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_MTD=y @@ -72,8 +71,7 @@ CONFIG_USB_STORAGE=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1307=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT4_FS=y CONFIG_XFS_FS=m CONFIG_PROC_KCORE=y CONFIG_TMPFS=y diff --git a/arch/powerpc/configs/tqm8xx_defconfig b/arch/powerpc/configs/tqm8xx_defconfig index 4c973c5321c6..78fddf24b5d3 100644 --- a/arch/powerpc/configs/tqm8xx_defconfig +++ b/arch/powerpc/configs/tqm8xx_defconfig @@ -29,7 +29,6 @@ CONFIG_SYN_COOKIES=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set # CONFIG_WIRELESS is not set CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" diff --git a/arch/powerpc/configs/wii_defconfig b/arch/powerpc/configs/wii_defconfig index 34eaf528fa87..dcdd51b57783 100644 --- a/arch/powerpc/configs/wii_defconfig +++ b/arch/powerpc/configs/wii_defconfig @@ -32,7 +32,6 @@ CONFIG_IP_PNP_RARP=y # CONFIG_INET_XFRM_MODE_TRANSPORT is not set # CONFIG_INET_XFRM_MODE_TUNNEL is not set # CONFIG_INET_XFRM_MODE_BEET is not set -# CONFIG_INET_LRO is not set # CONFIG_INET_DIAG is not set # CONFIG_IPV6 is not set CONFIG_BT=y @@ -96,9 +95,7 @@ CONFIG_MMC_SDHCI=y CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_GENERIC=y CONFIG_EXT2_FS=y -CONFIG_EXT3_FS=y -# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set -# CONFIG_EXT3_FS_XATTR is not set +CONFIG_EXT4_FS=y CONFIG_FUSE_FS=m CONFIG_ISO9660_FS=y CONFIG_JOLIET=y diff --git a/arch/powerpc/include/asm/accounting.h b/arch/powerpc/include/asm/accounting.h new file mode 100644 index 000000000000..c133246df467 --- /dev/null +++ b/arch/powerpc/include/asm/accounting.h @@ -0,0 +1,24 @@ +/* + * Common time accounting prototypes and such for all ppc machines. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef __POWERPC_ACCOUNTING_H +#define __POWERPC_ACCOUNTING_H + +/* Stuff for accurate time accounting */ +struct cpu_accounting_data { + unsigned long user_time; /* accumulated usermode TB ticks */ + unsigned long system_time; /* accumulated system TB ticks */ + unsigned long user_time_scaled; /* accumulated usermode SPURR ticks */ + unsigned long starttime; /* TB value snapshot */ + unsigned long starttime_user; /* TB value on exit to usermode */ + unsigned long startspurr; /* SPURR value snapshot */ + unsigned long utime_sspurr; /* ->user_time when ->startspurr set */ +}; + +#endif diff --git a/arch/powerpc/include/asm/asm-compat.h b/arch/powerpc/include/asm/asm-compat.h index dc85dcb891cf..cee3aa087653 100644 --- a/arch/powerpc/include/asm/asm-compat.h +++ b/arch/powerpc/include/asm/asm-compat.h @@ -36,11 +36,13 @@ #define PPC_MIN_STKFRM 112 #ifdef __BIG_ENDIAN__ +#define LHZX_BE stringify_in_c(lhzx) #define LWZX_BE stringify_in_c(lwzx) #define LDX_BE stringify_in_c(ldx) #define STWX_BE stringify_in_c(stwx) #define STDX_BE stringify_in_c(stdx) #else +#define LHZX_BE stringify_in_c(lhbrx) #define LWZX_BE stringify_in_c(lwbrx) #define LDX_BE stringify_in_c(ldbrx) #define STWX_BE stringify_in_c(stwbrx) diff --git a/arch/powerpc/include/asm/asm-prototypes.h b/arch/powerpc/include/asm/asm-prototypes.h new file mode 100644 index 000000000000..e71b9097594c --- /dev/null +++ b/arch/powerpc/include/asm/asm-prototypes.h @@ -0,0 +1,75 @@ +#ifndef _ASM_POWERPC_ASM_PROTOTYPES_H +#define _ASM_POWERPC_ASM_PROTOTYPES_H +/* + * This file is for prototypes of C functions that are only called + * from asm, and any associated variables. + * + * Copyright 2016, Daniel Axtens, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + */ + +#include <linux/threads.h> +#include <linux/kprobes.h> + +/* SMP */ +extern struct thread_info *current_set[NR_CPUS]; +extern struct thread_info *secondary_ti; +void start_secondary(void *unused); + +/* kexec */ +struct paca_struct; +struct kimage; +extern struct paca_struct kexec_paca; +void kexec_copy_flush(struct kimage *image); + +/* pseries hcall tracing */ +extern struct static_key hcall_tracepoint_key; +void __trace_hcall_entry(unsigned long opcode, unsigned long *args); +void __trace_hcall_exit(long opcode, unsigned long retval, + unsigned long *retbuf); +/* OPAL tracing */ +#ifdef HAVE_JUMP_LABEL +extern struct static_key opal_tracepoint_key; +#endif + +void __trace_opal_entry(unsigned long opcode, unsigned long *args); +void __trace_opal_exit(long opcode, unsigned long retval); + +/* VMX copying */ +int enter_vmx_usercopy(void); +int exit_vmx_usercopy(void); +int enter_vmx_copy(void); +void * exit_vmx_copy(void *dest); + +/* Traps */ +long machine_check_early(struct pt_regs *regs); +long hmi_exception_realmode(struct pt_regs *regs); +void SMIException(struct pt_regs *regs); +void handle_hmi_exception(struct pt_regs *regs); +void instruction_breakpoint_exception(struct pt_regs *regs); +void RunModeException(struct pt_regs *regs); +void __kprobes single_step_exception(struct pt_regs *regs); +void __kprobes program_check_exception(struct pt_regs *regs); +void alignment_exception(struct pt_regs *regs); +void StackOverflow(struct pt_regs *regs); +void nonrecoverable_exception(struct pt_regs *regs); +void kernel_fp_unavailable_exception(struct pt_regs *regs); +void altivec_unavailable_exception(struct pt_regs *regs); +void vsx_unavailable_exception(struct pt_regs *regs); +void fp_unavailable_tm(struct pt_regs *regs); +void altivec_unavailable_tm(struct pt_regs *regs); +void vsx_unavailable_tm(struct pt_regs *regs); +void facility_unavailable_exception(struct pt_regs *regs); +void TAUException(struct pt_regs *regs); +void altivec_assist_exception(struct pt_regs *regs); +void unrecoverable_exception(struct pt_regs *regs); +void kernel_bad_stack(struct pt_regs *regs); +void system_reset_exception(struct pt_regs *regs); +void machine_check_exception(struct pt_regs *regs); +void __kprobes emulation_assist_interrupt(struct pt_regs *regs); + +#endif /* _ASM_POWERPC_ASM_PROTOTYPES_H */ diff --git a/arch/powerpc/include/asm/book3s/64/mmu-hash.h b/arch/powerpc/include/asm/book3s/64/mmu-hash.h index 74839f24f412..5eaf86ac143d 100644 --- a/arch/powerpc/include/asm/book3s/64/mmu-hash.h +++ b/arch/powerpc/include/asm/book3s/64/mmu-hash.h @@ -124,6 +124,45 @@ #ifndef __ASSEMBLY__ +struct mmu_hash_ops { + void (*hpte_invalidate)(unsigned long slot, + unsigned long vpn, + int bpsize, int apsize, + int ssize, int local); + long (*hpte_updatepp)(unsigned long slot, + unsigned long newpp, + unsigned long vpn, + int bpsize, int apsize, + int ssize, unsigned long flags); + void (*hpte_updateboltedpp)(unsigned long newpp, + unsigned long ea, + int psize, int ssize); + long (*hpte_insert)(unsigned long hpte_group, + unsigned long vpn, + unsigned long prpn, + unsigned long rflags, + unsigned long vflags, + int psize, int apsize, + int ssize); + long (*hpte_remove)(unsigned long hpte_group); + int (*hpte_removebolted)(unsigned long ea, + int psize, int ssize); + void (*flush_hash_range)(unsigned long number, int local); + void (*hugepage_invalidate)(unsigned long vsid, + unsigned long addr, + unsigned char *hpte_slot_array, + int psize, int ssize, int local); + /* + * Special for kexec. + * To be called in real mode with interrupts disabled. No locks are + * taken as such, concurrent access on pre POWER5 hardware could result + * in a deadlock. + * The linear mapping is destroyed as well. + */ + void (*hpte_clear_all)(void); +}; +extern struct mmu_hash_ops mmu_hash_ops; + struct hash_pte { __be64 v; __be64 r; @@ -352,10 +391,13 @@ int htab_remove_mapping(unsigned long vstart, unsigned long vend, extern void add_gpage(u64 addr, u64 page_size, unsigned long number_of_pages); extern void demote_segment_4k(struct mm_struct *mm, unsigned long addr); +#ifdef CONFIG_PPC_PSERIES +void hpte_init_pseries(void); +#else +static inline void hpte_init_pseries(void) { } +#endif + extern void hpte_init_native(void); -extern void hpte_init_lpar(void); -extern void hpte_init_beat(void); -extern void hpte_init_beat_v3(void); extern void slb_initialize(void); extern void slb_flush_and_rebolt(void); @@ -435,7 +477,7 @@ extern void slb_set_size(u16 size); * function. Used in slb_allocate() and do_stab_bolted. The function * computed is: (protovsid*VSID_MULTIPLIER) % VSID_MODULUS * - * rt = register continaing the proto-VSID and into which the + * rt = register containing the proto-VSID and into which the * VSID will be stored * rx = scratch register (clobbered) * diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h index 5854263d4d6e..d4eda6420523 100644 --- a/arch/powerpc/include/asm/book3s/64/mmu.h +++ b/arch/powerpc/include/asm/book3s/64/mmu.h @@ -23,7 +23,12 @@ struct mmu_psize_def { }; extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT]; +#ifdef CONFIG_PPC_RADIX_MMU #define radix_enabled() mmu_has_feature(MMU_FTR_RADIX) +#else +#define radix_enabled() (0) +#endif + #endif /* __ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/book3s/64/pgtable-4k.h b/arch/powerpc/include/asm/book3s/64/pgtable-4k.h index 71e9abced493..9db83b4e017d 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable-4k.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable-4k.h @@ -11,7 +11,7 @@ static inline int pmd_huge(pmd_t pmd) * leaf pte for huge page */ if (radix_enabled()) - return !!(pmd_val(pmd) & _PAGE_PTE); + return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE)); return 0; } @@ -21,7 +21,7 @@ static inline int pud_huge(pud_t pud) * leaf pte for huge page */ if (radix_enabled()) - return !!(pud_val(pud) & _PAGE_PTE); + return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE)); return 0; } @@ -31,7 +31,7 @@ static inline int pgd_huge(pgd_t pgd) * leaf pte for huge page */ if (radix_enabled()) - return !!(pgd_val(pgd) & _PAGE_PTE); + return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PTE)); return 0; } #define pgd_huge pgd_huge diff --git a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h index cb2d0a5fa3f8..0d2845b44763 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h @@ -15,7 +15,7 @@ static inline int pmd_huge(pmd_t pmd) /* * leaf pte for huge page */ - return !!(pmd_val(pmd) & _PAGE_PTE); + return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE)); } static inline int pud_huge(pud_t pud) @@ -23,7 +23,7 @@ static inline int pud_huge(pud_t pud) /* * leaf pte for huge page */ - return !!(pud_val(pud) & _PAGE_PTE); + return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE)); } static inline int pgd_huge(pgd_t pgd) @@ -31,7 +31,7 @@ static inline int pgd_huge(pgd_t pgd) /* * leaf pte for huge page */ - return !!(pgd_val(pgd) & _PAGE_PTE); + return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PTE)); } #define pgd_huge pgd_huge diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index ab84c89c9e98..263bf39ced40 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -318,7 +318,7 @@ static inline int __ptep_test_and_clear_young(struct mm_struct *mm, { unsigned long old; - if ((pte_val(*ptep) & (_PAGE_ACCESSED | H_PAGE_HASHPTE)) == 0) + if ((pte_raw(*ptep) & cpu_to_be64(_PAGE_ACCESSED | H_PAGE_HASHPTE)) == 0) return 0; old = pte_update(mm, addr, ptep, _PAGE_ACCESSED, 0, 0); return (old & _PAGE_ACCESSED) != 0; @@ -336,8 +336,7 @@ static inline int __ptep_test_and_clear_young(struct mm_struct *mm, static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - - if ((pte_val(*ptep) & _PAGE_WRITE) == 0) + if ((pte_raw(*ptep) & cpu_to_be64(_PAGE_WRITE)) == 0) return; pte_update(mm, addr, ptep, _PAGE_WRITE, 0, 0); @@ -346,7 +345,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, static inline void huge_ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - if ((pte_val(*ptep) & _PAGE_WRITE) == 0) + if ((pte_raw(*ptep) & cpu_to_be64(_PAGE_WRITE)) == 0) return; pte_update(mm, addr, ptep, _PAGE_WRITE, 0, 1); @@ -365,17 +364,35 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, { pte_update(mm, addr, ptep, ~0UL, 0, 0); } -static inline int pte_write(pte_t pte) { return !!(pte_val(pte) & _PAGE_WRITE);} -static inline int pte_dirty(pte_t pte) { return !!(pte_val(pte) & _PAGE_DIRTY); } -static inline int pte_young(pte_t pte) { return !!(pte_val(pte) & _PAGE_ACCESSED); } -static inline int pte_special(pte_t pte) { return !!(pte_val(pte) & _PAGE_SPECIAL); } + +static inline int pte_write(pte_t pte) +{ + return !!(pte_raw(pte) & cpu_to_be64(_PAGE_WRITE)); +} + +static inline int pte_dirty(pte_t pte) +{ + return !!(pte_raw(pte) & cpu_to_be64(_PAGE_DIRTY)); +} + +static inline int pte_young(pte_t pte) +{ + return !!(pte_raw(pte) & cpu_to_be64(_PAGE_ACCESSED)); +} + +static inline int pte_special(pte_t pte) +{ + return !!(pte_raw(pte) & cpu_to_be64(_PAGE_SPECIAL)); +} + static inline pgprot_t pte_pgprot(pte_t pte) { return __pgprot(pte_val(pte) & PAGE_PROT_BITS); } #ifdef CONFIG_HAVE_ARCH_SOFT_DIRTY static inline bool pte_soft_dirty(pte_t pte) { - return !!(pte_val(pte) & _PAGE_SOFT_DIRTY); + return !!(pte_raw(pte) & cpu_to_be64(_PAGE_SOFT_DIRTY)); } + static inline pte_t pte_mksoft_dirty(pte_t pte) { return __pte(pte_val(pte) | _PAGE_SOFT_DIRTY); @@ -395,14 +412,14 @@ static inline pte_t pte_clear_soft_dirty(pte_t pte) */ static inline int pte_protnone(pte_t pte) { - return (pte_val(pte) & (_PAGE_PRESENT | _PAGE_PRIVILEGED)) == - (_PAGE_PRESENT | _PAGE_PRIVILEGED); + return (pte_raw(pte) & cpu_to_be64(_PAGE_PRESENT | _PAGE_PRIVILEGED)) == + cpu_to_be64(_PAGE_PRESENT | _PAGE_PRIVILEGED); } #endif /* CONFIG_NUMA_BALANCING */ static inline int pte_present(pte_t pte) { - return !!(pte_val(pte) & _PAGE_PRESENT); + return !!(pte_raw(pte) & cpu_to_be64(_PAGE_PRESENT)); } /* * Conversion functions: convert a page and protection to a page entry, @@ -474,7 +491,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) static inline bool pte_user(pte_t pte) { - return !(pte_val(pte) & _PAGE_PRIVILEGED); + return !(pte_raw(pte) & cpu_to_be64(_PAGE_PRIVILEGED)); } /* Encode and de-code a swap entry */ @@ -517,10 +534,12 @@ static inline pte_t pte_swp_mksoft_dirty(pte_t pte) { return __pte(pte_val(pte) | _PAGE_SWP_SOFT_DIRTY); } + static inline bool pte_swp_soft_dirty(pte_t pte) { - return !!(pte_val(pte) & _PAGE_SWP_SOFT_DIRTY); + return !!(pte_raw(pte) & cpu_to_be64(_PAGE_SWP_SOFT_DIRTY)); } + static inline pte_t pte_swp_clear_soft_dirty(pte_t pte) { return __pte(pte_val(pte) & ~_PAGE_SWP_SOFT_DIRTY); @@ -626,8 +645,16 @@ static inline void pmd_clear(pmd_t *pmdp) *pmdp = __pmd(0); } -#define pmd_none(pmd) (!pmd_val(pmd)) -#define pmd_present(pmd) (!pmd_none(pmd)) +static inline int pmd_none(pmd_t pmd) +{ + return !pmd_raw(pmd); +} + +static inline int pmd_present(pmd_t pmd) +{ + + return !pmd_none(pmd); +} static inline int pmd_bad(pmd_t pmd) { @@ -646,19 +673,26 @@ static inline void pud_clear(pud_t *pudp) *pudp = __pud(0); } -#define pud_none(pud) (!pud_val(pud)) -#define pud_present(pud) (pud_val(pud) != 0) +static inline int pud_none(pud_t pud) +{ + return !pud_raw(pud); +} + +static inline int pud_present(pud_t pud) +{ + return !pud_none(pud); +} extern struct page *pud_page(pud_t pud); extern struct page *pmd_page(pmd_t pmd); static inline pte_t pud_pte(pud_t pud) { - return __pte(pud_val(pud)); + return __pte_raw(pud_raw(pud)); } static inline pud_t pte_pud(pte_t pte) { - return __pud(pte_val(pte)); + return __pud_raw(pte_raw(pte)); } #define pud_write(pud) pte_write(pud_pte(pud)) @@ -681,17 +715,24 @@ static inline void pgd_clear(pgd_t *pgdp) *pgdp = __pgd(0); } -#define pgd_none(pgd) (!pgd_val(pgd)) -#define pgd_present(pgd) (!pgd_none(pgd)) +static inline int pgd_none(pgd_t pgd) +{ + return !pgd_raw(pgd); +} + +static inline int pgd_present(pgd_t pgd) +{ + return !pgd_none(pgd); +} static inline pte_t pgd_pte(pgd_t pgd) { - return __pte(pgd_val(pgd)); + return __pte_raw(pgd_raw(pgd)); } static inline pgd_t pte_pgd(pte_t pte) { - return __pgd(pte_val(pte)); + return __pgd_raw(pte_raw(pte)); } static inline int pgd_bad(pgd_t pgd) @@ -783,12 +824,12 @@ struct page *realmode_pfn_to_page(unsigned long pfn); static inline pte_t pmd_pte(pmd_t pmd) { - return __pte(pmd_val(pmd)); + return __pte_raw(pmd_raw(pmd)); } static inline pmd_t pte_pmd(pte_t pte) { - return __pmd(pte_val(pte)); + return __pmd_raw(pte_raw(pte)); } static inline pte_t *pmdp_ptep(pmd_t *pmd) @@ -849,7 +890,7 @@ pmd_hugepage_update(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, static inline int pmd_large(pmd_t pmd) { - return !!(pmd_val(pmd) & _PAGE_PTE); + return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE)); } static inline pmd_t pmd_mknotpresent(pmd_t pmd) @@ -865,7 +906,7 @@ static inline int __pmdp_test_and_clear_young(struct mm_struct *mm, { unsigned long old; - if ((pmd_val(*pmdp) & (_PAGE_ACCESSED | H_PAGE_HASHPTE)) == 0) + if ((pmd_raw(*pmdp) & cpu_to_be64(_PAGE_ACCESSED | H_PAGE_HASHPTE)) == 0) return 0; old = pmd_hugepage_update(mm, addr, pmdp, _PAGE_ACCESSED, 0); return ((old & _PAGE_ACCESSED) != 0); @@ -876,7 +917,7 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp) { - if ((pmd_val(*pmdp) & _PAGE_WRITE) == 0) + if ((pmd_raw(*pmdp) & cpu_to_be64(_PAGE_WRITE)) == 0) return; pmd_hugepage_update(mm, addr, pmdp, _PAGE_WRITE, 0); diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h index 3fa94fcac628..00703e7e4c94 100644 --- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h +++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h @@ -32,5 +32,7 @@ extern void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr); #define radix___flush_tlb_page(mm,addr,p,i) radix___local_flush_tlb_page(mm,addr,p,i) #define radix__flush_tlb_pwc(tlb, addr) radix__local_flush_tlb_pwc(tlb, addr) #endif - +extern void radix__flush_tlb_lpid_va(unsigned long lpid, unsigned long gpa, + unsigned long page_size); +extern void radix__flush_tlb_lpid(unsigned long lpid); #endif diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h index 994c60a857ce..2015b072422c 100644 --- a/arch/powerpc/include/asm/code-patching.h +++ b/arch/powerpc/include/asm/code-patching.h @@ -49,8 +49,7 @@ void __patch_exception(int exc, unsigned long addr); static inline unsigned long ppc_function_entry(void *func) { -#if defined(CONFIG_PPC64) -#if defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 u32 *insn = func; /* @@ -75,14 +74,13 @@ static inline unsigned long ppc_function_entry(void *func) return (unsigned long)(insn + 2); else return (unsigned long)func; -#else +#elif defined(PPC64_ELF_ABI_v1) /* * On PPC64 ABIv1 the function pointer actually points to the * function's descriptor. The first entry in the descriptor is the * address of the function text. */ return ((func_descr_t *)func)->entry; -#endif #else return (unsigned long)func; #endif @@ -90,7 +88,7 @@ static inline unsigned long ppc_function_entry(void *func) static inline unsigned long ppc_global_function_entry(void *func) { -#if defined(CONFIG_PPC64) && defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 /* PPC64 ABIv2 the global entry point is at the address */ return (unsigned long)func; #else @@ -106,7 +104,7 @@ static inline unsigned long ppc_global_function_entry(void *func) */ /* This must match the definition of STK_GOT in <asm/ppc_asm.h> */ -#if defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 #define R2_STACK_OFFSET 24 #else #define R2_STACK_OFFSET 40 diff --git a/arch/powerpc/include/asm/cpufeature.h b/arch/powerpc/include/asm/cpufeature.h new file mode 100644 index 000000000000..19e6290699ea --- /dev/null +++ b/arch/powerpc/include/asm/cpufeature.h @@ -0,0 +1,40 @@ +/* + * CPU feature definitions for module loading, used by + * module_cpu_feature_match(), see asm/cputable.h for powerpc CPU features. + * + * Copyright 2016 Alastair D'Silva, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef __ASM_POWERPC_CPUFEATURE_H +#define __ASM_POWERPC_CPUFEATURE_H + +#include <asm/cputable.h> + +/* Keep these in step with powerpc/include/asm/cputable.h */ +#define MAX_CPU_FEATURES (2 * 32) + +/* + * Currently we don't have a need for any of the feature bits defined in + * cpu_user_features. When we do, they should be defined such as: + * + * #define PPC_MODULE_FEATURE_32 (ilog2(PPC_FEATURE_32)) + */ + +#define PPC_MODULE_FEATURE_VEC_CRYPTO (32 + ilog2(PPC_FEATURE2_VEC_CRYPTO)) + +#define cpu_feature(x) (x) + +static inline bool cpu_have_feature(unsigned int num) +{ + if (num < 32) + return !!(cur_cpu_spec->cpu_user_features & 1UL << num); + else + return !!(cur_cpu_spec->cpu_user_features2 & 1UL << (num - 32)); +} + +#endif /* __ASM_POWERPC_CPUFEATURE_H */ diff --git a/arch/powerpc/include/asm/cpuidle.h b/arch/powerpc/include/asm/cpuidle.h index d2f99ca1e3a6..3d7fc06532a1 100644 --- a/arch/powerpc/include/asm/cpuidle.h +++ b/arch/powerpc/include/asm/cpuidle.h @@ -13,6 +13,8 @@ #ifndef __ASSEMBLY__ extern u32 pnv_fastsleep_workaround_at_entry[]; extern u32 pnv_fastsleep_workaround_at_exit[]; + +extern u64 pnv_first_deep_stop_state; #endif #endif diff --git a/arch/powerpc/include/asm/cputime.h b/arch/powerpc/include/asm/cputime.h index e2452550bcb1..2dfd4fc41f3e 100644 --- a/arch/powerpc/include/asm/cputime.h +++ b/arch/powerpc/include/asm/cputime.h @@ -90,11 +90,10 @@ static inline void setup_cputime_one_jiffy(void) static inline cputime64_t jiffies64_to_cputime64(const u64 jif) { u64 ct; - u64 sec; + u64 sec = jif; /* have to be a little careful about overflow */ - ct = jif % HZ; - sec = jif / HZ; + ct = do_div(sec, HZ); if (ct) { ct *= tb_ticks_per_sec; do_div(ct, HZ); @@ -230,7 +229,16 @@ static inline cputime_t clock_t_to_cputime(const unsigned long clk) #define cputime64_to_clock_t(ct) cputime_to_clock_t((cputime_t)(ct)) +/* + * PPC64 uses PACA which is task independent for storing accounting data while + * PPC32 uses struct thread_info, therefore at task switch the accounting data + * has to be populated in the new task + */ +#ifdef CONFIG_PPC64 static inline void arch_vtime_task_switch(struct task_struct *tsk) { } +#else +void arch_vtime_task_switch(struct task_struct *tsk); +#endif #endif /* __KERNEL__ */ #endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index fb9f376ae27b..8e37b71674f4 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -57,7 +57,7 @@ struct pci_dn; /* * The struct is used to trace PE related EEH functionality. * In theory, there will have one instance of the struct to - * be created against particular PE. In nature, PEs corelate + * be created against particular PE. In nature, PEs correlate * to each other. the struct has to reflect that hierarchy in * order to easily pick up those affected PEs when one particular * PE has EEH errors. @@ -274,7 +274,7 @@ void eeh_pe_restore_bars(struct eeh_pe *pe); const char *eeh_pe_loc_get(struct eeh_pe *pe); struct pci_bus *eeh_pe_bus_get(struct eeh_pe *pe); -void *eeh_dev_init(struct pci_dn *pdn, void *data); +struct eeh_dev *eeh_dev_init(struct pci_dn *pdn); void eeh_dev_phb_init_dynamic(struct pci_controller *phb); int eeh_init(void); int __init eeh_ops_register(struct eeh_ops *ops); diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index 93ae809fe5ea..bed66e5743b3 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -287,7 +287,7 @@ do_kvm_##n: \ std r0,GPR0(r1); /* save r0 in stackframe */ \ std r10,GPR1(r1); /* save r1 in stackframe */ \ beq 4f; /* if from kernel mode */ \ - ACCOUNT_CPU_USER_ENTRY(r9, r10); \ + ACCOUNT_CPU_USER_ENTRY(r13, r9, r10); \ SAVE_PPR(area, r9, r10); \ 4: EXCEPTION_PROLOG_COMMON_2(area) \ EXCEPTION_PROLOG_COMMON_3(n) \ @@ -403,6 +403,8 @@ label##_relon_hv: \ #define SOFTEN_VALUE_0xe82 PACA_IRQ_DBELL #define SOFTEN_VALUE_0xe60 PACA_IRQ_HMI #define SOFTEN_VALUE_0xe62 PACA_IRQ_HMI +#define SOFTEN_VALUE_0xea0 PACA_IRQ_EE +#define SOFTEN_VALUE_0xea2 PACA_IRQ_EE #define __SOFTEN_TEST(h, vec) \ lbz r10,PACASOFTIRQEN(r13); \ diff --git a/arch/powerpc/include/asm/feature-fixups.h b/arch/powerpc/include/asm/feature-fixups.h index 9a67a38bf7b9..57fec8ac7b92 100644 --- a/arch/powerpc/include/asm/feature-fixups.h +++ b/arch/powerpc/include/asm/feature-fixups.h @@ -184,4 +184,8 @@ label##3: \ FTR_ENTRY_OFFSET label##1b-label##3b; \ .popsection; +#ifndef __ASSEMBLY__ +void apply_feature_fixups(void); +#endif + #endif /* __ASM_POWERPC_FEATURE_FIXUPS_H */ diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h index b0629249778b..1e0b5a5d660a 100644 --- a/arch/powerpc/include/asm/firmware.h +++ b/arch/powerpc/include/asm/firmware.h @@ -126,6 +126,12 @@ extern int fwnmi_active; extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup; +#ifdef CONFIG_PPC_PSERIES +void pseries_probe_fw_features(void); +#else +static inline void pseries_probe_fw_features(void) { }; +#endif + #endif /* __ASSEMBLY__ */ #endif /* __KERNEL__ */ #endif /* __ASM_POWERPC_FIRMWARE_H */ diff --git a/arch/powerpc/include/asm/fixmap.h b/arch/powerpc/include/asm/fixmap.h index 90f604bbcd19..4508b322f2cd 100644 --- a/arch/powerpc/include/asm/fixmap.h +++ b/arch/powerpc/include/asm/fixmap.h @@ -51,6 +51,13 @@ enum fixed_addresses { FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */ FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1, #endif +#ifdef CONFIG_PPC_8xx + /* For IMMR we need an aligned 512K area */ +#define FIX_IMMR_SIZE (512 * 1024 / PAGE_SIZE) + FIX_IMMR_START, + FIX_IMMR_BASE = __ALIGN_MASK(FIX_IMMR_START, FIX_IMMR_SIZE - 1) - 1 + + FIX_IMMR_SIZE, +#endif /* FIX_PCIE_MCFG, */ __end_of_fixed_addresses }; diff --git a/arch/powerpc/include/asm/ftrace.h b/arch/powerpc/include/asm/ftrace.h index 50ca7585abe2..686c5f70eb84 100644 --- a/arch/powerpc/include/asm/ftrace.h +++ b/arch/powerpc/include/asm/ftrace.h @@ -1,6 +1,8 @@ #ifndef _ASM_POWERPC_FTRACE #define _ASM_POWERPC_FTRACE +#include <asm/types.h> + #ifdef CONFIG_FUNCTION_TRACER #define MCOUNT_ADDR ((unsigned long)(_mcount)) #define MCOUNT_INSN_SIZE 4 /* sizeof mcount call */ @@ -65,8 +67,8 @@ struct dyn_arch_ftrace { #endif #endif -#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_PPC64) && !defined(__ASSEMBLY__) -#if !defined(_CALL_ELF) || _CALL_ELF != 2 +#if defined(CONFIG_FTRACE_SYSCALLS) && !defined(__ASSEMBLY__) +#ifdef PPC64_ELF_ABI_v1 #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME static inline bool arch_syscall_match_sym_name(const char *sym, const char *name) { @@ -79,6 +81,6 @@ static inline bool arch_syscall_match_sym_name(const char *sym, const char *name return !strcmp(sym + 4, name + 3); } #endif -#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_PPC64 && !__ASSEMBLY__ */ +#endif /* CONFIG_FTRACE_SYSCALLS && !__ASSEMBLY__ */ #endif /* _ASM_POWERPC_FTRACE */ diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h index 0bc9c284aa10..708edebcf147 100644 --- a/arch/powerpc/include/asm/hvcall.h +++ b/arch/powerpc/include/asm/hvcall.h @@ -431,17 +431,6 @@ static inline unsigned long cmo_get_page_size(void) { return CMO_PageSize; } - -extern long pSeries_enable_reloc_on_exc(void); -extern long pSeries_disable_reloc_on_exc(void); - -extern long pseries_big_endian_exceptions(void); - -#else - -#define pSeries_enable_reloc_on_exc() do {} while (0) -#define pSeries_disable_reloc_on_exc() do {} while (0) - #endif /* CONFIG_PPC_PSERIES */ #endif /* __ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h index b59ac27a6b7d..c7d82ff62a33 100644 --- a/arch/powerpc/include/asm/hw_irq.h +++ b/arch/powerpc/include/asm/hw_irq.h @@ -130,6 +130,8 @@ static inline bool arch_irq_disabled_regs(struct pt_regs *regs) extern bool prep_irq_for_idle(void); +extern void force_external_irq_replay(void); + #else /* CONFIG_PPC64 */ #define SET_MSR_EE(x) mtmsr(x) diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h index 7b87bab09564..f49a72a9062d 100644 --- a/arch/powerpc/include/asm/iommu.h +++ b/arch/powerpc/include/asm/iommu.h @@ -273,7 +273,6 @@ extern void iommu_init_early_pSeries(void); extern void iommu_init_early_dart(struct pci_controller_ops *controller_ops); extern void iommu_init_early_pasemi(void); -extern void alloc_dart_table(void); #if defined(CONFIG_PPC64) && defined(CONFIG_PM) static inline void iommu_save(void) { diff --git a/arch/powerpc/include/asm/kprobes.h b/arch/powerpc/include/asm/kprobes.h index 039b583db029..2c9759bdb63b 100644 --- a/arch/powerpc/include/asm/kprobes.h +++ b/arch/powerpc/include/asm/kprobes.h @@ -40,8 +40,7 @@ struct kprobe; typedef ppc_opcode_t kprobe_opcode_t; #define MAX_INSN_SIZE 1 -#ifdef CONFIG_PPC64 -#if defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 /* PPC64 ABIv2 needs local entry point */ #define kprobe_lookup_name(name, addr) \ { \ @@ -49,7 +48,7 @@ typedef ppc_opcode_t kprobe_opcode_t; if (addr) \ addr = (kprobe_opcode_t *)ppc_function_entry(addr); \ } -#else +#elif defined(PPC64_ELF_ABI_v1) /* * 64bit powerpc ABIv1 uses function descriptors: * - Check for the dot variant of the symbol first. @@ -92,8 +91,7 @@ typedef ppc_opcode_t kprobe_opcode_t; addr = (kprobe_opcode_t *)kallsyms_lookup_name(name); \ } \ } -#endif /* defined(_CALL_ELF) && _CALL_ELF == 2 */ -#endif /* CONFIG_PPC64 */ +#endif #define flush_insn_slot(p) do { } while (0) #define kretprobe_blacklist_size 0 diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h index 72b6225aca73..d318d432caa9 100644 --- a/arch/powerpc/include/asm/kvm_book3s_asm.h +++ b/arch/powerpc/include/asm/kvm_book3s_asm.h @@ -162,7 +162,7 @@ struct kvmppc_book3s_shadow_vcpu { /* Values for kvm_state */ #define KVM_HWTHREAD_IN_KERNEL 0 -#define KVM_HWTHREAD_IN_NAP 1 +#define KVM_HWTHREAD_IN_IDLE 1 #define KVM_HWTHREAD_IN_KVM 2 #endif /* __ASM_KVM_BOOK3S_ASM_H__ */ diff --git a/arch/powerpc/include/asm/linkage.h b/arch/powerpc/include/asm/linkage.h index e3ad5c72724a..0cf5e21179fc 100644 --- a/arch/powerpc/include/asm/linkage.h +++ b/arch/powerpc/include/asm/linkage.h @@ -1,8 +1,9 @@ #ifndef _ASM_POWERPC_LINKAGE_H #define _ASM_POWERPC_LINKAGE_H -#ifdef CONFIG_PPC64 -#if !defined(_CALL_ELF) || _CALL_ELF != 2 +#include <asm/types.h> + +#ifdef PPC64_ELF_ABI_v1 #define cond_syscall(x) \ asm ("\t.weak " #x "\n\t.set " #x ", sys_ni_syscall\n" \ "\t.weak ." #x "\n\t.set ." #x ", .sys_ni_syscall\n") @@ -10,6 +11,5 @@ asm ("\t.globl " #alias "\n\t.set " #alias ", " #name "\n" \ "\t.globl ." #alias "\n\t.set ." #alias ", ." #name) #endif -#endif #endif /* _ASM_POWERPC_LINKAGE_H */ diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index 6bdcd0da9e21..76f5398e7152 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -34,42 +34,6 @@ struct pci_host_bridge; struct machdep_calls { char *name; #ifdef CONFIG_PPC64 - void (*hpte_invalidate)(unsigned long slot, - unsigned long vpn, - int bpsize, int apsize, - int ssize, int local); - long (*hpte_updatepp)(unsigned long slot, - unsigned long newpp, - unsigned long vpn, - int bpsize, int apsize, - int ssize, unsigned long flags); - void (*hpte_updateboltedpp)(unsigned long newpp, - unsigned long ea, - int psize, int ssize); - long (*hpte_insert)(unsigned long hpte_group, - unsigned long vpn, - unsigned long prpn, - unsigned long rflags, - unsigned long vflags, - int psize, int apsize, - int ssize); - long (*hpte_remove)(unsigned long hpte_group); - int (*hpte_removebolted)(unsigned long ea, - int psize, int ssize); - void (*flush_hash_range)(unsigned long number, int local); - void (*hugepage_invalidate)(unsigned long vsid, - unsigned long addr, - unsigned char *hpte_slot_array, - int psize, int ssize, int local); - /* - * Special for kexec. - * To be called in real mode with interrupts disabled. No locks are - * taken as such, concurrent access on pre POWER5 hardware could result - * in a deadlock. - * The linear mapping is destroyed as well. - */ - void (*hpte_clear_all)(void); - void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size, unsigned long flags, void *caller); void (*iounmap)(volatile void __iomem *token); @@ -89,7 +53,6 @@ struct machdep_calls { int (*probe)(void); void (*setup_arch)(void); /* Optional, may be NULL */ - void (*init_early)(void); /* Optional, may be NULL. */ void (*show_cpuinfo)(struct seq_file *m); void (*show_percpuinfo)(struct seq_file *m, int i); @@ -111,8 +74,8 @@ struct machdep_calls { /* To setup PHBs when using automatic OF platform driver for PCI */ int (*pci_setup_phb)(struct pci_controller *host); - void (*restart)(char *cmd); - void (*halt)(void); + void __noreturn (*restart)(char *cmd); + void __noreturn (*halt)(void); void (*panic)(char *str); void (*cpu_die)(void); @@ -256,7 +219,8 @@ struct machdep_calls { #ifdef CONFIG_ARCH_RANDOM int (*get_random_seed)(unsigned long *v); #endif - int (*update_partition_table)(u64); + int (*register_process_table)(unsigned long base, unsigned long page_size, + unsigned long tbl_size); }; extern void e500_idle(void); diff --git a/arch/powerpc/include/asm/mmu-8xx.h b/arch/powerpc/include/asm/mmu-8xx.h index 0a566f15f985..3e0e4927811c 100644 --- a/arch/powerpc/include/asm/mmu-8xx.h +++ b/arch/powerpc/include/asm/mmu-8xx.h @@ -169,6 +169,9 @@ typedef struct { unsigned int active; unsigned long vdso_base; } mm_context_t; + +#define PHYS_IMMR_BASE (mfspr(SPRN_IMMR) & 0xfff80000) +#define VIRT_IMMR_BASE (__fix_to_virt(FIX_IMMR_BASE)) #endif /* !__ASSEMBLY__ */ #if defined(CONFIG_PPC_4K_PAGES) diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index e53ebebff474..54471228f7b8 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -24,6 +24,11 @@ /* * This is individual features */ +/* + * We need to clear top 16bits of va (from the remaining 64 bits )in + * tlbie* instructions + */ +#define MMU_FTR_TLBIE_CROP_VA ASM_CONST(0x00008000) /* Enable use of high BAT registers */ #define MMU_FTR_USE_HIGH_BATS ASM_CONST(0x00010000) @@ -97,7 +102,7 @@ #define MMU_FTRS_DEFAULT_HPTE_ARCH_V2 \ MMU_FTR_HPTE_TABLE | MMU_FTR_PPCAS_ARCH_V2 #define MMU_FTRS_POWER4 MMU_FTRS_DEFAULT_HPTE_ARCH_V2 -#define MMU_FTRS_PPC970 MMU_FTRS_POWER4 +#define MMU_FTRS_PPC970 MMU_FTRS_POWER4 | MMU_FTR_TLBIE_CROP_VA #define MMU_FTRS_POWER5 MMU_FTRS_POWER4 | MMU_FTR_LOCKLESS_TLBIE #define MMU_FTRS_POWER6 MMU_FTRS_POWER4 | MMU_FTR_LOCKLESS_TLBIE #define MMU_FTRS_POWER7 MMU_FTRS_POWER4 | MMU_FTR_LOCKLESS_TLBIE @@ -124,7 +129,7 @@ enum { MMU_FTR_USE_TLBRSRV | MMU_FTR_USE_PAIRED_MAS | MMU_FTR_NO_SLBIE_B | MMU_FTR_16M_PAGE | MMU_FTR_TLBIEL | MMU_FTR_LOCKLESS_TLBIE | MMU_FTR_CI_LARGE_PAGE | - MMU_FTR_1T_SEGMENT | + MMU_FTR_1T_SEGMENT | MMU_FTR_TLBIE_CROP_VA | #ifdef CONFIG_PPC_RADIX_MMU MMU_FTR_RADIX | #endif diff --git a/arch/powerpc/include/asm/mpc52xx.h b/arch/powerpc/include/asm/mpc52xx.h index 0acc7c7c28d1..e94cede14522 100644 --- a/arch/powerpc/include/asm/mpc52xx.h +++ b/arch/powerpc/include/asm/mpc52xx.h @@ -275,7 +275,7 @@ extern int mpc5200_psc_ac97_gpio_reset(int psc_number); extern void mpc52xx_map_common_devices(void); extern int mpc52xx_set_psc_clkdiv(int psc_id, int clkdiv); extern unsigned int mpc52xx_get_xtal_freq(struct device_node *node); -extern void mpc52xx_restart(char *cmd); +extern void __noreturn mpc52xx_restart(char *cmd); /* mpc52xx_gpt.c */ struct mpc52xx_gpt_priv; diff --git a/arch/powerpc/include/asm/nohash/32/pte-44x.h b/arch/powerpc/include/asm/nohash/32/pte-44x.h index fdab41c654ef..0656ff81e5b0 100644 --- a/arch/powerpc/include/asm/nohash/32/pte-44x.h +++ b/arch/powerpc/include/asm/nohash/32/pte-44x.h @@ -32,7 +32,7 @@ * - - - - - - U0 U1 U2 U3 W I M G E - UX UW UR SX SW SR * * Newer 440 cores (440x6 as used on AMCC 460EX/460GT) have additional - * TLB2 storage attibute fields. Those are: + * TLB2 storage attribute fields. Those are: * * TLB2: * 0...10 11 12 13 14 15 16...31 diff --git a/arch/powerpc/include/asm/nohash/64/pgtable-64k.h b/arch/powerpc/include/asm/nohash/64/pgtable-64k.h index 570fb30be21c..908324574f77 100644 --- a/arch/powerpc/include/asm/nohash/64/pgtable-64k.h +++ b/arch/powerpc/include/asm/nohash/64/pgtable-64k.h @@ -23,6 +23,7 @@ #ifndef __ASSEMBLY__ #define PTE_TABLE_SIZE PTE_FRAG_SIZE #define PMD_TABLE_SIZE (sizeof(pmd_t) << PMD_INDEX_SIZE) +#define PUD_TABLE_SIZE (0) #define PGD_TABLE_SIZE (sizeof(pgd_t) << PGD_INDEX_SIZE) #endif /* __ASSEMBLY__ */ diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h index 9bb8ddf0be37..0e2e57bcab50 100644 --- a/arch/powerpc/include/asm/opal-api.h +++ b/arch/powerpc/include/asm/opal-api.h @@ -158,17 +158,33 @@ #define OPAL_LEDS_SET_INDICATOR 115 #define OPAL_CEC_REBOOT2 116 #define OPAL_CONSOLE_FLUSH 117 -#define OPAL_LAST 117 +#define OPAL_GET_DEVICE_TREE 118 +#define OPAL_PCI_GET_PRESENCE_STATE 119 +#define OPAL_PCI_GET_POWER_STATE 120 +#define OPAL_PCI_SET_POWER_STATE 121 +#define OPAL_INT_GET_XIRR 122 +#define OPAL_INT_SET_CPPR 123 +#define OPAL_INT_EOI 124 +#define OPAL_INT_SET_MFRR 125 +#define OPAL_PCI_TCE_KILL 126 +#define OPAL_LAST 126 /* Device tree flags */ -/* Flags set in power-mgmt nodes in device tree if - * respective idle states are supported in the platform. +/* + * Flags set in power-mgmt nodes in device tree describing + * idle states that are supported in the platform. */ + +#define OPAL_PM_TIMEBASE_STOP 0x00000002 +#define OPAL_PM_LOSE_HYP_CONTEXT 0x00002000 +#define OPAL_PM_LOSE_FULL_CONTEXT 0x00004000 #define OPAL_PM_NAP_ENABLED 0x00010000 #define OPAL_PM_SLEEP_ENABLED 0x00020000 #define OPAL_PM_WINKLE_ENABLED 0x00040000 #define OPAL_PM_SLEEP_ENABLED_ER1 0x00080000 /* with workaround */ +#define OPAL_PM_STOP_INST_FAST 0x00100000 +#define OPAL_PM_STOP_INST_DEEP 0x00200000 /* * OPAL_CONFIG_CPU_IDLE_STATE parameters @@ -344,6 +360,18 @@ enum OpalPciResetState { OPAL_ASSERT_RESET = 1 }; +enum OpalPciSlotPresence { + OPAL_PCI_SLOT_EMPTY = 0, + OPAL_PCI_SLOT_PRESENT = 1 +}; + +enum OpalPciSlotPower { + OPAL_PCI_SLOT_POWER_OFF = 0, + OPAL_PCI_SLOT_POWER_ON = 1, + OPAL_PCI_SLOT_OFFLINE = 2, + OPAL_PCI_SLOT_ONLINE = 3 +}; + enum OpalSlotLedType { OPAL_SLOT_LED_TYPE_ID = 0, /* IDENTIFY LED */ OPAL_SLOT_LED_TYPE_FAULT = 1, /* FAULT LED */ @@ -802,7 +830,7 @@ struct opal_sg_entry { }; /* - * Candiate image SG list. + * Candidate image SG list. * * length = VER | length */ @@ -825,6 +853,7 @@ enum { OPAL_PHB_CAPI_MODE_CAPI = 1, OPAL_PHB_CAPI_MODE_SNOOP_OFF = 2, OPAL_PHB_CAPI_MODE_SNOOP_ON = 3, + OPAL_PHB_CAPI_MODE_DMA = 4, }; /* OPAL I2C request */ @@ -852,7 +881,7 @@ struct opal_i2c_request { * with individual elements being 16 bits wide to fetch the system * wide EPOW status. Each element in the buffer will contain the * EPOW status in it's bit representation for a particular EPOW sub - * class as defiend here. So multiple detailed EPOW status bits + * class as defined here. So multiple detailed EPOW status bits * specific for any sub class can be represented in a single buffer * element as it's bit representation. */ @@ -891,6 +920,13 @@ enum { OPAL_REBOOT_PLATFORM_ERROR = 1, }; +/* Argument to OPAL_PCI_TCE_KILL */ +enum { + OPAL_PCI_TCE_KILL_PAGES, + OPAL_PCI_TCE_KILL_PE, + OPAL_PCI_TCE_KILL_ALL, +}; + #endif /* __ASSEMBLY__ */ #endif /* __OPAL_API_H */ diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 9d86c6651716..ee05bd203630 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -131,7 +131,7 @@ int64_t opal_pci_map_pe_dma_window(uint64_t phb_id, uint16_t pe_number, uint16_t int64_t opal_pci_map_pe_dma_window_real(uint64_t phb_id, uint16_t pe_number, uint16_t dma_window_number, uint64_t pci_start_addr, uint64_t pci_mem_size); -int64_t opal_pci_reset(uint64_t phb_id, uint8_t reset_scope, uint8_t assert_state); +int64_t opal_pci_reset(uint64_t id, uint8_t reset_scope, uint8_t assert_state); int64_t opal_pci_get_hub_diag_data(uint64_t hub_id, void *diag_buffer, uint64_t diag_buffer_len); @@ -148,7 +148,7 @@ int64_t opal_get_dpo_status(__be64 *dpo_timeout); int64_t opal_set_system_attention_led(uint8_t led_action); int64_t opal_pci_next_error(uint64_t phb_id, __be64 *first_frozen_pe, __be16 *pci_error_type, __be16 *severity); -int64_t opal_pci_poll(uint64_t phb_id); +int64_t opal_pci_poll(uint64_t id); int64_t opal_return_cpu(void); int64_t opal_check_token(uint64_t token); int64_t opal_reinit_cpus(uint64_t flags); @@ -178,6 +178,8 @@ int64_t opal_dump_ack(uint32_t dump_id); int64_t opal_dump_resend_notification(void); int64_t opal_get_msg(uint64_t buffer, uint64_t size); +int64_t opal_write_oppanel_async(uint64_t token, oppanel_line_t *lines, + uint64_t num_lines); int64_t opal_check_completion(uint64_t buffer, uint64_t size, uint64_t token); int64_t opal_sync_host_reboot(void); int64_t opal_get_param(uint64_t token, uint32_t param_id, uint64_t buffer, @@ -209,12 +211,30 @@ int64_t opal_flash_write(uint64_t id, uint64_t offset, uint64_t buf, uint64_t size, uint64_t token); int64_t opal_flash_erase(uint64_t id, uint64_t offset, uint64_t size, uint64_t token); +int64_t opal_get_device_tree(uint32_t phandle, uint64_t buf, uint64_t len); +int64_t opal_pci_get_presence_state(uint64_t id, uint64_t data); +int64_t opal_pci_get_power_state(uint64_t id, uint64_t data); +int64_t opal_pci_set_power_state(uint64_t async_token, uint64_t id, + uint64_t data); +int64_t opal_pci_poll2(uint64_t id, uint64_t data); + +int64_t opal_int_get_xirr(uint32_t *out_xirr, bool just_poll); +int64_t opal_int_set_cppr(uint8_t cppr); +int64_t opal_int_eoi(uint32_t xirr); +int64_t opal_int_set_mfrr(uint32_t cpu, uint8_t mfrr); +int64_t opal_pci_tce_kill(uint64_t phb_id, uint32_t kill_type, + uint32_t pe_num, uint32_t tce_size, + uint64_t dma_addr, uint32_t npages); +int64_t opal_rm_pci_tce_kill(uint64_t phb_id, uint32_t kill_type, + uint32_t pe_num, uint32_t tce_size, + uint64_t dma_addr, uint32_t npages); /* Internal functions */ extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data); extern int early_init_dt_scan_recoverable_ranges(unsigned long node, const char *uname, int depth, void *data); +extern void opal_configure_cores(void); extern int opal_get_chars(uint32_t vtermno, char *buf, int count); extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len); @@ -276,6 +296,16 @@ extern int opal_error_code(int rc); ssize_t opal_msglog_copy(char *to, loff_t pos, size_t count); +static inline int opal_get_async_rc(struct opal_msg msg) +{ + if (msg.msg_type != OPAL_MSG_ASYNC_COMP) + return OPAL_PARAMETER; + else + return be64_to_cpu(msg.params[1]); +} + +void opal_wake_poller(void); + #endif /* __ASSEMBLY__ */ #endif /* _ASM_POWERPC_OPAL_H */ diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h index 546540b91095..ad171e979ab0 100644 --- a/arch/powerpc/include/asm/paca.h +++ b/arch/powerpc/include/asm/paca.h @@ -25,6 +25,7 @@ #ifdef CONFIG_KVM_BOOK3S_64_HANDLER #include <asm/kvm_book3s_asm.h> #endif +#include <asm/accounting.h> register struct paca_struct *local_paca asm("r13"); @@ -184,13 +185,7 @@ struct paca_struct { #endif /* Stuff for accurate time accounting */ - u64 user_time; /* accumulated usermode TB ticks */ - u64 system_time; /* accumulated system TB ticks */ - u64 user_time_scaled; /* accumulated usermode SPURR ticks */ - u64 starttime; /* TB value snapshot */ - u64 starttime_user; /* TB value on exit to usermode */ - u64 startspurr; /* SPURR value snapshot */ - u64 utime_sspurr; /* ->user_time when ->startspurr set */ + struct cpu_accounting_data accounting; u64 stolen_time; /* TB ticks taken by hypervisor */ u64 dtl_ridx; /* read index in dispatch log */ struct dtl_entry *dtl_curr; /* pointer corresponding to dtl_ridx */ diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h index 51db3a37bced..56398e7e6100 100644 --- a/arch/powerpc/include/asm/page.h +++ b/arch/powerpc/include/asm/page.h @@ -96,7 +96,7 @@ extern unsigned int HPAGE_SHIFT; extern phys_addr_t memstart_addr; extern phys_addr_t kernstart_addr; -#ifdef CONFIG_RELOCATABLE_PPC32 +#if defined(CONFIG_RELOCATABLE) && defined(CONFIG_PPC32) extern long long virt_phys_offset; #endif @@ -139,9 +139,9 @@ extern long long virt_phys_offset; * determine MEMORY_START until then. However we can determine PHYSICAL_START * from information at hand (program counter, TLB lookup). * - * On BookE with RELOCATABLE (RELOCATABLE_PPC32) + * On BookE with RELOCATABLE && PPC32 * - * With RELOCATABLE_PPC32, we support loading the kernel at any physical + * With RELOCATABLE && PPC32, we support loading the kernel at any physical * address without any restriction on the page alignment. * * We find the runtime address of _stext and relocate ourselves based on diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 467c0b05b6fb..b5e88e4a171a 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -33,6 +33,8 @@ struct pci_controller_ops { /* Called during PCI resource reassignment */ resource_size_t (*window_alignment)(struct pci_bus *bus, unsigned long type); + void (*setup_bridge)(struct pci_bus *bus, + unsigned long type); void (*reset_secondary_bus)(struct pci_dev *pdev); #ifdef CONFIG_PCI_MSI diff --git a/arch/powerpc/include/asm/pgtable-be-types.h b/arch/powerpc/include/asm/pgtable-be-types.h index e2bf208605b1..49c0a5a80efa 100644 --- a/arch/powerpc/include/asm/pgtable-be-types.h +++ b/arch/powerpc/include/asm/pgtable-be-types.h @@ -6,6 +6,7 @@ /* PTE level */ typedef struct { __be64 pte; } pte_t; #define __pte(x) ((pte_t) { cpu_to_be64(x) }) +#define __pte_raw(x) ((pte_t) { (x) }) static inline unsigned long pte_val(pte_t x) { return be64_to_cpu(x.pte); @@ -20,6 +21,7 @@ static inline __be64 pte_raw(pte_t x) #ifdef CONFIG_PPC64 typedef struct { __be64 pmd; } pmd_t; #define __pmd(x) ((pmd_t) { cpu_to_be64(x) }) +#define __pmd_raw(x) ((pmd_t) { (x) }) static inline unsigned long pmd_val(pmd_t x) { return be64_to_cpu(x.pmd); @@ -37,21 +39,34 @@ static inline __be64 pmd_raw(pmd_t x) #if defined(CONFIG_PPC_BOOK3S_64) || !defined(CONFIG_PPC_64K_PAGES) typedef struct { __be64 pud; } pud_t; #define __pud(x) ((pud_t) { cpu_to_be64(x) }) +#define __pud_raw(x) ((pud_t) { (x) }) static inline unsigned long pud_val(pud_t x) { return be64_to_cpu(x.pud); } + +static inline __be64 pud_raw(pud_t x) +{ + return x.pud; +} + #endif /* CONFIG_PPC_BOOK3S_64 || !CONFIG_PPC_64K_PAGES */ #endif /* CONFIG_PPC64 */ /* PGD level */ typedef struct { __be64 pgd; } pgd_t; #define __pgd(x) ((pgd_t) { cpu_to_be64(x) }) +#define __pgd_raw(x) ((pgd_t) { (x) }) static inline unsigned long pgd_val(pgd_t x) { return be64_to_cpu(x.pgd); } +static inline __be64 pgd_raw(pgd_t x) +{ + return x.pgd; +} + /* Page protection bits */ typedef struct { unsigned long pgprot; } pgprot_t; #define pgprot_val(x) ((x).pgprot) diff --git a/arch/powerpc/include/asm/pmac_feature.h b/arch/powerpc/include/asm/pmac_feature.h index 925697968946..e08e829261b6 100644 --- a/arch/powerpc/include/asm/pmac_feature.h +++ b/arch/powerpc/include/asm/pmac_feature.h @@ -210,7 +210,7 @@ static inline long pmac_call_feature(int selector, struct device_node* node, /* PMAC_FTR_SOUND_CHIP_ENABLE (struct device_node* node, 0, int value) * enable/disable the sound chip, whatever it is and provided it can - * acually be controlled + * actually be controlled */ #define PMAC_FTR_SOUND_CHIP_ENABLE PMAC_FTR_DEF(9) diff --git a/arch/powerpc/include/asm/pnv-pci.h b/arch/powerpc/include/asm/pnv-pci.h index 6f77f71ee964..0cbd8134ce81 100644 --- a/arch/powerpc/include/asm/pnv-pci.h +++ b/arch/powerpc/include/asm/pnv-pci.h @@ -11,7 +11,20 @@ #define _ASM_PNV_PCI_H #include <linux/pci.h> +#include <linux/pci_hotplug.h> #include <misc/cxl-base.h> +#include <asm/opal-api.h> + +#define PCI_SLOT_ID_PREFIX 0x8000000000000000 +#define PCI_SLOT_ID(phb_id, bdfn) \ + (PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id)) + +extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id); +extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len); +extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state); +extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state); +extern int pnv_pci_set_power_state(uint64_t id, uint8_t state, + struct opal_msg *msg); int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode); int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq, @@ -26,6 +39,40 @@ int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs, struct pci_dev *dev, int num); void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs, struct pci_dev *dev); + +/* Support for the cxl kernel api on the real PHB (instead of vPHB) */ +int pnv_cxl_enable_phb_kernel_api(struct pci_controller *hose, bool enable); +bool pnv_pci_on_cxl_phb(struct pci_dev *dev); +struct cxl_afu *pnv_cxl_phb_to_afu(struct pci_controller *hose); +void pnv_cxl_phb_set_peer_afu(struct pci_dev *dev, struct cxl_afu *afu); + #endif +struct pnv_php_slot { + struct hotplug_slot slot; + struct hotplug_slot_info slot_info; + uint64_t id; + char *name; + int slot_no; + struct kref kref; +#define PNV_PHP_STATE_INITIALIZED 0 +#define PNV_PHP_STATE_REGISTERED 1 +#define PNV_PHP_STATE_POPULATED 2 +#define PNV_PHP_STATE_OFFLINE 3 + int state; + struct device_node *dn; + struct pci_dev *pdev; + struct pci_bus *bus; + bool power_state_check; + void *fdt; + void *dt; + struct of_changeset ocs; + struct pnv_php_slot *parent; + struct list_head children; + struct list_head link; +}; +extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn); +extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot, + uint8_t state); + #endif diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index 49cd8760aa7c..127ebf5862b4 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -131,6 +131,8 @@ /* sorted alphabetically */ #define PPC_INST_BHRBE 0x7c00025c #define PPC_INST_CLRBHRB 0x7c00035c +#define PPC_INST_COPY 0x7c00060c +#define PPC_INST_COPY_FIRST 0x7c20060c #define PPC_INST_CP_ABORT 0x7c00068c #define PPC_INST_DCBA 0x7c0005ec #define PPC_INST_DCBA_MASK 0xfc0007fe @@ -142,9 +144,11 @@ #define PPC_INST_ISEL 0x7c00001e #define PPC_INST_ISEL_MASK 0xfc00003e #define PPC_INST_LDARX 0x7c0000a8 +#define PPC_INST_STDCX 0x7c0001ad #define PPC_INST_LSWI 0x7c0004aa #define PPC_INST_LSWX 0x7c00042a #define PPC_INST_LWARX 0x7c000028 +#define PPC_INST_STWCX 0x7c00012d #define PPC_INST_LWSYNC 0x7c2004ac #define PPC_INST_SYNC 0x7c0004ac #define PPC_INST_SYNC_MASK 0xfc0007fe @@ -159,6 +163,8 @@ #define PPC_INST_MSGSNDP 0x7c00011c #define PPC_INST_MTTMR 0x7c0003dc #define PPC_INST_NOP 0x60000000 +#define PPC_INST_PASTE 0x7c00070c +#define PPC_INST_PASTE_LAST 0x7c20070d #define PPC_INST_POPCNTB 0x7c0000f4 #define PPC_INST_POPCNTB_MASK 0xfc0007fe #define PPC_INST_POPCNTD 0x7c0003f4 @@ -177,6 +183,7 @@ #define PPC_INST_MFVSRD 0x7c000066 #define PPC_INST_MTVSRD 0x7c000166 #define PPC_INST_SLBFEE 0x7c0007a7 +#define PPC_INST_SLBIA 0x7c0003e4 #define PPC_INST_STRING 0x7c00042a #define PPC_INST_STRING_MASK 0xfc0007fe @@ -186,6 +193,7 @@ #define PPC_INST_STSWX 0x7c00052a #define PPC_INST_STXVD2X 0x7c000798 #define PPC_INST_TLBIE 0x7c000264 +#define PPC_INST_TLBIEL 0x7c000224 #define PPC_INST_TLBILX 0x7c000024 #define PPC_INST_WAIT 0x7c00007c #define PPC_INST_TLBIVAX 0x7c000624 @@ -203,6 +211,8 @@ #define PPC_INST_SLEEP 0x4c0003a4 #define PPC_INST_WINKLE 0x4c0003e4 +#define PPC_INST_STOP 0x4c0002e4 + /* A2 specific instructions */ #define PPC_INST_ERATWE 0x7c0001a6 #define PPC_INST_ERATRE 0x7c000166 @@ -215,8 +225,11 @@ #define PPC_INST_LBZ 0x88000000 #define PPC_INST_LD 0xe8000000 #define PPC_INST_LHZ 0xa0000000 -#define PPC_INST_LHBRX 0x7c00062c #define PPC_INST_LWZ 0x80000000 +#define PPC_INST_LHBRX 0x7c00062c +#define PPC_INST_LDBRX 0x7c000428 +#define PPC_INST_STB 0x98000000 +#define PPC_INST_STH 0xb0000000 #define PPC_INST_STD 0xf8000000 #define PPC_INST_STDU 0xf8000001 #define PPC_INST_STW 0x90000000 @@ -225,22 +238,34 @@ #define PPC_INST_MTLR 0x7c0803a6 #define PPC_INST_CMPWI 0x2c000000 #define PPC_INST_CMPDI 0x2c200000 +#define PPC_INST_CMPW 0x7c000000 +#define PPC_INST_CMPD 0x7c200000 #define PPC_INST_CMPLW 0x7c000040 +#define PPC_INST_CMPLD 0x7c200040 #define PPC_INST_CMPLWI 0x28000000 +#define PPC_INST_CMPLDI 0x28200000 #define PPC_INST_ADDI 0x38000000 #define PPC_INST_ADDIS 0x3c000000 #define PPC_INST_ADD 0x7c000214 #define PPC_INST_SUB 0x7c000050 #define PPC_INST_BLR 0x4e800020 #define PPC_INST_BLRL 0x4e800021 +#define PPC_INST_MULLD 0x7c0001d2 #define PPC_INST_MULLW 0x7c0001d6 #define PPC_INST_MULHWU 0x7c000016 #define PPC_INST_MULLI 0x1c000000 #define PPC_INST_DIVWU 0x7c000396 +#define PPC_INST_DIVD 0x7c0003d2 #define PPC_INST_RLWINM 0x54000000 +#define PPC_INST_RLWIMI 0x50000000 +#define PPC_INST_RLDICL 0x78000000 #define PPC_INST_RLDICR 0x78000004 #define PPC_INST_SLW 0x7c000030 +#define PPC_INST_SLD 0x7c000036 #define PPC_INST_SRW 0x7c000430 +#define PPC_INST_SRD 0x7c000436 +#define PPC_INST_SRAD 0x7c000634 +#define PPC_INST_SRADI 0x7c000674 #define PPC_INST_AND 0x7c000038 #define PPC_INST_ANDDOT 0x7c000039 #define PPC_INST_OR 0x7c000378 @@ -251,6 +276,7 @@ #define PPC_INST_XORI 0x68000000 #define PPC_INST_XORIS 0x6c000000 #define PPC_INST_NEG 0x7c0000d0 +#define PPC_INST_EXTSW 0x7c0007b4 #define PPC_INST_BRANCH 0x48000000 #define PPC_INST_BRANCH_COND 0x40800000 #define PPC_INST_LBZCIX 0x7c0006aa @@ -261,6 +287,9 @@ #define ___PPC_RB(b) (((b) & 0x1f) << 11) #define ___PPC_RS(s) (((s) & 0x1f) << 21) #define ___PPC_RT(t) ___PPC_RS(t) +#define ___PPC_R(r) (((r) & 0x1) << 16) +#define ___PPC_PRS(prs) (((prs) & 0x1) << 17) +#define ___PPC_RIC(ric) (((ric) & 0x3) << 18) #define __PPC_RA(a) ___PPC_RA(__REG_##a) #define __PPC_RA0(a) ___PPC_RA(__REGA0_##a) #define __PPC_RB(b) ___PPC_RB(__REG_##b) @@ -276,6 +305,8 @@ #define __PPC_SH(s) __PPC_WS(s) #define __PPC_MB(s) (((s) & 0x1f) << 6) #define __PPC_ME(s) (((s) & 0x1f) << 1) +#define __PPC_MB64(s) (__PPC_MB(s) | ((s) & 0x20)) +#define __PPC_ME64(s) __PPC_MB64(s) #define __PPC_BI(s) (((s) & 0x1f) << 16) #define __PPC_CT(t) (((t) & 0x0f) << 21) @@ -325,6 +356,16 @@ __PPC_WC(w)) #define PPC_TLBIE(lp,a) stringify_in_c(.long PPC_INST_TLBIE | \ ___PPC_RB(a) | ___PPC_RS(lp)) +#define PPC_TLBIE_5(rb,rs,ric,prs,r) \ + stringify_in_c(.long PPC_INST_TLBIE | \ + ___PPC_RB(rb) | ___PPC_RS(rs) | \ + ___PPC_RIC(ric) | ___PPC_PRS(prs) | \ + ___PPC_R(r)) +#define PPC_TLBIEL(rb,rs,ric,prs,r) \ + stringify_in_c(.long PPC_INST_TLBIEL | \ + ___PPC_RB(rb) | ___PPC_RS(rs) | \ + ___PPC_RIC(ric) | ___PPC_PRS(prs) | \ + ___PPC_R(r)) #define PPC_TLBSRX_DOT(a,b) stringify_in_c(.long PPC_INST_TLBSRX_DOT | \ __PPC_RA0(a) | __PPC_RB(b)) #define PPC_TLBIVAX(a,b) stringify_in_c(.long PPC_INST_TLBIVAX | \ @@ -382,6 +423,8 @@ #define PPC_SLEEP stringify_in_c(.long PPC_INST_SLEEP) #define PPC_WINKLE stringify_in_c(.long PPC_INST_WINKLE) +#define PPC_STOP stringify_in_c(.long PPC_INST_STOP) + /* BHRB instructions */ #define PPC_CLRBHRB stringify_in_c(.long PPC_INST_CLRBHRB) #define PPC_MFBHRBE(r, n) stringify_in_c(.long PPC_INST_BHRBE | \ @@ -412,5 +455,7 @@ ___PPC_RA(a) | \ ___PPC_RB(b)) +#define PPC_SLBIA(IH) stringify_in_c(.long PPC_INST_SLBIA | \ + ((IH & 0x7) << 21)) #endif /* _ASM_POWERPC_PPC_OPCODE_H */ diff --git a/arch/powerpc/include/asm/ppc-pci.h b/arch/powerpc/include/asm/ppc-pci.h index 8753e4eb9ab5..0f73de069f19 100644 --- a/arch/powerpc/include/asm/ppc-pci.h +++ b/arch/powerpc/include/asm/ppc-pci.h @@ -39,8 +39,6 @@ void *pci_traverse_device_nodes(struct device_node *start, void *traverse_pci_dn(struct pci_dn *root, void *(*fn)(struct pci_dn *, void *), void *data); - -extern void pci_devs_phb_init(void); extern void pci_devs_phb_init_dynamic(struct pci_controller *phb); /* From rtas_pci.h */ diff --git a/arch/powerpc/include/asm/ppc4xx.h b/arch/powerpc/include/asm/ppc4xx.h index 033039a80c42..610a5119ad8c 100644 --- a/arch/powerpc/include/asm/ppc4xx.h +++ b/arch/powerpc/include/asm/ppc4xx.h @@ -13,6 +13,6 @@ #ifndef __ASM_POWERPC_PPC4xx_H__ #define __ASM_POWERPC_PPC4xx_H__ -extern void ppc4xx_reset_system(char *cmd); +extern void __noreturn ppc4xx_reset_system(char *cmd); #endif /* __ASM_POWERPC_PPC4xx_H__ */ diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h index 051af612a7e1..d5d5b5e348f2 100644 --- a/arch/powerpc/include/asm/ppc_asm.h +++ b/arch/powerpc/include/asm/ppc_asm.h @@ -24,27 +24,27 @@ */ #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE -#define ACCOUNT_CPU_USER_ENTRY(ra, rb) -#define ACCOUNT_CPU_USER_EXIT(ra, rb) +#define ACCOUNT_CPU_USER_ENTRY(ptr, ra, rb) +#define ACCOUNT_CPU_USER_EXIT(ptr, ra, rb) #define ACCOUNT_STOLEN_TIME #else -#define ACCOUNT_CPU_USER_ENTRY(ra, rb) \ +#define ACCOUNT_CPU_USER_ENTRY(ptr, ra, rb) \ MFTB(ra); /* get timebase */ \ - ld rb,PACA_STARTTIME_USER(r13); \ - std ra,PACA_STARTTIME(r13); \ + PPC_LL rb, ACCOUNT_STARTTIME_USER(ptr); \ + PPC_STL ra, ACCOUNT_STARTTIME(ptr); \ subf rb,rb,ra; /* subtract start value */ \ - ld ra,PACA_USER_TIME(r13); \ + PPC_LL ra, ACCOUNT_USER_TIME(ptr); \ add ra,ra,rb; /* add on to user time */ \ - std ra,PACA_USER_TIME(r13); \ + PPC_STL ra, ACCOUNT_USER_TIME(ptr); \ -#define ACCOUNT_CPU_USER_EXIT(ra, rb) \ +#define ACCOUNT_CPU_USER_EXIT(ptr, ra, rb) \ MFTB(ra); /* get timebase */ \ - ld rb,PACA_STARTTIME(r13); \ - std ra,PACA_STARTTIME_USER(r13); \ + PPC_LL rb, ACCOUNT_STARTTIME(ptr); \ + PPC_STL ra, ACCOUNT_STARTTIME_USER(ptr); \ subf rb,rb,ra; /* subtract start value */ \ - ld ra,PACA_SYSTEM_TIME(r13); \ + PPC_LL ra, ACCOUNT_SYSTEM_TIME(ptr); \ add ra,ra,rb; /* add on to system time */ \ - std ra,PACA_SYSTEM_TIME(r13) + PPC_STL ra, ACCOUNT_SYSTEM_TIME(ptr) #ifdef CONFIG_PPC_SPLPAR #define ACCOUNT_STOLEN_TIME \ @@ -189,7 +189,7 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR) #define __STK_REG(i) (112 + ((i)-14)*8) #define STK_REG(i) __STK_REG(__REG_##i) -#if defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 #define STK_GOT 24 #define __STK_PARAM(i) (32 + ((i)-3)*8) #else @@ -198,7 +198,7 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR) #endif #define STK_PARAM(i) __STK_PARAM(__REG_##i) -#if defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 #define _GLOBAL(name) \ .section ".text"; \ diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 009fab130cd8..68e3bf57b027 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -224,7 +224,7 @@ struct thread_struct { unsigned int align_ctl; /* alignment handling control */ #ifdef CONFIG_PPC64 unsigned long start_tb; /* Start purr when proc switched in */ - unsigned long accum_tb; /* Total accumilated purr for process */ + unsigned long accum_tb; /* Total accumulated purr for process */ #ifdef CONFIG_HAVE_HW_BREAKPOINT struct perf_event *ptrace_bps[HBP_NUM]; /* @@ -314,6 +314,8 @@ struct thread_struct { unsigned long mmcr2; unsigned mmcr0; unsigned used_ebb; + unsigned long lmrr; + unsigned long lmser; #endif }; @@ -347,6 +349,7 @@ struct thread_struct { .fs = KERNEL_DS, \ .fpexc_mode = 0, \ .ppr = INIT_PPR, \ + .fscr = FSCR_TAR | FSCR_EBB \ } #endif @@ -457,6 +460,8 @@ extern int powersave_nap; /* set if nap mode can be used in idle loop */ extern unsigned long power7_nap(int check_irq); extern unsigned long power7_sleep(void); extern unsigned long power7_winkle(void); +extern unsigned long power9_idle_stop(unsigned long stop_level); + extern void flush_instruction_cache(void); extern void hard_reset_now(void); extern void poweroff_now(void); diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h index a1bc7e758422..a19f831a4cc9 100644 --- a/arch/powerpc/include/asm/ps3.h +++ b/arch/powerpc/include/asm/ps3.h @@ -526,4 +526,6 @@ void ps3_sync_irq(int node); u32 ps3_get_hw_thread_id(int cpu); u64 ps3_get_spe_id(void *arg); +void ps3_early_mm_init(void); + #endif diff --git a/arch/powerpc/include/asm/ps3av.h b/arch/powerpc/include/asm/ps3av.h index 0427b0b53d2d..a1dc784d70e8 100644 --- a/arch/powerpc/include/asm/ps3av.h +++ b/arch/powerpc/include/asm/ps3av.h @@ -104,7 +104,7 @@ #define PS3AV_CMD_AV_INPUTLEN_16 0x02 #define PS3AV_CMD_AV_INPUTLEN_20 0x0a #define PS3AV_CMD_AV_INPUTLEN_24 0x0b -/* alayout */ +/* av_layout */ #define PS3AV_CMD_AV_LAYOUT_32 (1 << 0) #define PS3AV_CMD_AV_LAYOUT_44 (1 << 1) #define PS3AV_CMD_AV_LAYOUT_48 (1 << 2) diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h index 2eeaf80d41b7..4ba26dd259fd 100644 --- a/arch/powerpc/include/asm/pte-common.h +++ b/arch/powerpc/include/asm/pte-common.h @@ -96,7 +96,7 @@ static inline bool pte_user(pte_t pte) #define PTE_RPN_SHIFT (PAGE_SHIFT) #endif -/* The mask convered by the RPN must be a ULL on 32-bit platforms with +/* The mask covered by the RPN must be a ULL on 32-bit platforms with * 64-bit PTEs */ #if defined(CONFIG_PPC32) && defined(CONFIG_PTE_64BIT) diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index c0c61fa9cd9e..e4923686e43a 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -47,7 +47,7 @@ STACK_FRAME_OVERHEAD + KERNEL_REDZONE_SIZE) #define STACK_FRAME_MARKER 12 -#if defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 #define STACK_FRAME_MIN_SIZE 32 #else #define STACK_FRAME_MIN_SIZE STACK_FRAME_OVERHEAD diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index a0948f40bc7b..40f3615bf940 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -145,6 +145,15 @@ #define MSR_64BIT 0 #endif +/* Power Management - Processor Stop Status and Control Register Fields */ +#define PSSCR_RL_MASK 0x0000000F /* Requested Level */ +#define PSSCR_MTL_MASK 0x000000F0 /* Maximum Transition Level */ +#define PSSCR_TR_MASK 0x00000300 /* Transition State */ +#define PSSCR_PSLL_MASK 0x000F0000 /* Power-Saving Level Limit */ +#define PSSCR_EC 0x00100000 /* Exit Criterion */ +#define PSSCR_ESL 0x00200000 /* Enable State Loss */ +#define PSSCR_SD 0x00400000 /* Status Disable */ + /* Floating Point Status and Control Register (FPSCR) Fields */ #define FPSCR_FX 0x80000000 /* FPU exception summary */ #define FPSCR_FEX 0x40000000 /* FPU enabled exception summary */ @@ -268,6 +277,7 @@ #define DSISR_KEYFAULT 0x00200000 /* Key fault */ #define SPRN_TBRL 0x10C /* Time Base Read Lower Register (user, R/O) */ #define SPRN_TBRU 0x10D /* Time Base Read Upper Register (user, R/O) */ +#define SPRN_CIR 0x11B /* Chip Information Register (hyper, R/0) */ #define SPRN_TBWL 0x11C /* Time Base Lower Register (super, R/W) */ #define SPRN_TBWU 0x11D /* Time Base Upper Register (super, R/W) */ #define SPRN_TBU40 0x11E /* Timebase upper 40 bits (hyper, R/W) */ @@ -282,15 +292,19 @@ #define SPRN_HRMOR 0x139 /* Real mode offset register */ #define SPRN_HSRR0 0x13A /* Hypervisor Save/Restore 0 */ #define SPRN_HSRR1 0x13B /* Hypervisor Save/Restore 1 */ +#define SPRN_LMRR 0x32D /* Load Monitor Region Register */ +#define SPRN_LMSER 0x32E /* Load Monitor Section Enable Register */ #define SPRN_IC 0x350 /* Virtual Instruction Count */ #define SPRN_VTB 0x351 /* Virtual Time Base */ #define SPRN_LDBAR 0x352 /* LD Base Address Register */ #define SPRN_PMICR 0x354 /* Power Management Idle Control Reg */ #define SPRN_PMSR 0x355 /* Power Management Status Reg */ #define SPRN_PMMAR 0x356 /* Power Management Memory Activity Register */ +#define SPRN_PSSCR 0x357 /* Processor Stop Status and Control Register (ISA 3.0) */ #define SPRN_PMCR 0x374 /* Power Management Control Register */ /* HFSCR and FSCR bit numbers are the same */ +#define FSCR_LM_LG 11 /* Enable Load Monitor Registers */ #define FSCR_TAR_LG 8 /* Enable Target Address Register */ #define FSCR_EBB_LG 7 /* Enable Event Based Branching */ #define FSCR_TM_LG 5 /* Enable Transactional Memory */ @@ -300,10 +314,12 @@ #define FSCR_VECVSX_LG 1 /* Enable VMX/VSX */ #define FSCR_FP_LG 0 /* Enable Floating Point */ #define SPRN_FSCR 0x099 /* Facility Status & Control Register */ +#define FSCR_LM __MASK(FSCR_LM_LG) #define FSCR_TAR __MASK(FSCR_TAR_LG) #define FSCR_EBB __MASK(FSCR_EBB_LG) #define FSCR_DSCR __MASK(FSCR_DSCR_LG) #define SPRN_HFSCR 0xbe /* HV=1 Facility Status & Control Register */ +#define HFSCR_LM __MASK(FSCR_LM_LG) #define HFSCR_TAR __MASK(FSCR_TAR_LG) #define HFSCR_EBB __MASK(FSCR_EBB_LG) #define HFSCR_TM __MASK(FSCR_TM_LG) @@ -314,40 +330,43 @@ #define HFSCR_FP __MASK(FSCR_FP_LG) #define SPRN_TAR 0x32f /* Target Address Register */ #define SPRN_LPCR 0x13E /* LPAR Control Register */ -#define LPCR_VPM0 (1ul << (63-0)) -#define LPCR_VPM1 (1ul << (63-1)) -#define LPCR_ISL (1ul << (63-2)) -#define LPCR_VC_SH (63-2) -#define LPCR_DPFD_SH (63-11) -#define LPCR_DPFD (7ul << LPCR_DPFD_SH) -#define LPCR_VRMASD (0x1ful << (63-16)) -#define LPCR_VRMA_L (1ul << (63-12)) -#define LPCR_VRMA_LP0 (1ul << (63-15)) -#define LPCR_VRMA_LP1 (1ul << (63-16)) -#define LPCR_VRMASD_SH (63-16) -#define LPCR_RMLS 0x1C000000 /* impl dependent rmo limit sel */ -#define LPCR_RMLS_SH (63-37) -#define LPCR_ILE 0x02000000 /* !HV irqs set MSR:LE */ -#define LPCR_AIL 0x01800000 /* Alternate interrupt location */ -#define LPCR_AIL_0 0x00000000 /* MMU off exception offset 0x0 */ -#define LPCR_AIL_3 0x01800000 /* MMU on exception offset 0xc00...4xxx */ -#define LPCR_ONL 0x00040000 /* online - PURR/SPURR count */ -#define LPCR_PECE 0x0001f000 /* powersave exit cause enable */ -#define LPCR_PECEDP 0x00010000 /* directed priv dbells cause exit */ -#define LPCR_PECEDH 0x00008000 /* directed hyp dbells cause exit */ -#define LPCR_PECE0 0x00004000 /* ext. exceptions can cause exit */ -#define LPCR_PECE1 0x00002000 /* decrementer can cause exit */ -#define LPCR_PECE2 0x00001000 /* machine check etc can cause exit */ -#define LPCR_MER 0x00000800 /* Mediated External Exception */ -#define LPCR_MER_SH 11 -#define LPCR_TC 0x00000200 /* Translation control */ -#define LPCR_LPES 0x0000000c -#define LPCR_LPES0 0x00000008 /* LPAR Env selector 0 */ -#define LPCR_LPES1 0x00000004 /* LPAR Env selector 1 */ -#define LPCR_LPES_SH 2 -#define LPCR_RMI 0x00000002 /* real mode is cache inhibit */ -#define LPCR_HDICE 0x00000001 /* Hyp Decr enable (HV,PR,EE) */ -#define LPCR_UPRT 0x00400000 /* Use Process Table (ISA 3) */ +#define LPCR_VPM0 ASM_CONST(0x8000000000000000) +#define LPCR_VPM1 ASM_CONST(0x4000000000000000) +#define LPCR_ISL ASM_CONST(0x2000000000000000) +#define LPCR_VC_SH 61 +#define LPCR_DPFD_SH 52 +#define LPCR_DPFD (ASM_CONST(7) << LPCR_DPFD_SH) +#define LPCR_VRMASD_SH 47 +#define LPCR_VRMASD (ASM_CONST(1) << LPCR_VRMASD_SH) +#define LPCR_VRMA_L ASM_CONST(0x0008000000000000) +#define LPCR_VRMA_LP0 ASM_CONST(0x0001000000000000) +#define LPCR_VRMA_LP1 ASM_CONST(0x0000800000000000) +#define LPCR_RMLS 0x1C000000 /* Implementation dependent RMO limit sel */ +#define LPCR_RMLS_SH 26 +#define LPCR_ILE ASM_CONST(0x0000000002000000) /* !HV irqs set MSR:LE */ +#define LPCR_AIL ASM_CONST(0x0000000001800000) /* Alternate interrupt location */ +#define LPCR_AIL_0 ASM_CONST(0x0000000000000000) /* MMU off exception offset 0x0 */ +#define LPCR_AIL_3 ASM_CONST(0x0000000001800000) /* MMU on exception offset 0xc00...4xxx */ +#define LPCR_ONL ASM_CONST(0x0000000000040000) /* online - PURR/SPURR count */ +#define LPCR_LD ASM_CONST(0x0000000000020000) /* large decremeter */ +#define LPCR_PECE ASM_CONST(0x000000000001f000) /* powersave exit cause enable */ +#define LPCR_PECEDP ASM_CONST(0x0000000000010000) /* directed priv dbells cause exit */ +#define LPCR_PECEDH ASM_CONST(0x0000000000008000) /* directed hyp dbells cause exit */ +#define LPCR_PECE0 ASM_CONST(0x0000000000004000) /* ext. exceptions can cause exit */ +#define LPCR_PECE1 ASM_CONST(0x0000000000002000) /* decrementer can cause exit */ +#define LPCR_PECE2 ASM_CONST(0x0000000000001000) /* machine check etc can cause exit */ +#define LPCR_MER ASM_CONST(0x0000000000000800) /* Mediated External Exception */ +#define LPCR_MER_SH 11 +#define LPCR_TC ASM_CONST(0x0000000000000200) /* Translation control */ +#define LPCR_LPES 0x0000000c +#define LPCR_LPES0 ASM_CONST(0x0000000000000008) /* LPAR Env selector 0 */ +#define LPCR_LPES1 ASM_CONST(0x0000000000000004) /* LPAR Env selector 1 */ +#define LPCR_LPES_SH 2 +#define LPCR_RMI ASM_CONST(0x0000000000000002) /* real mode is cache inhibit */ +#define LPCR_HVICE ASM_CONST(0x0000000000000002) /* P9: HV interrupt enable */ +#define LPCR_HDICE ASM_CONST(0x0000000000000001) /* Hyp Decr enable (HV,PR,EE) */ +#define LPCR_UPRT ASM_CONST(0x0000000000400000) /* Use Process Table (ISA 3) */ +#define LPCR_HR ASM_CONST(0x0000000000100000) #ifndef SPRN_LPID #define SPRN_LPID 0x13F /* Logical Partition Identifier */ #endif @@ -1288,6 +1307,7 @@ static inline unsigned long mfvtb (void) asm volatile("mfspr %0, %1" : "=r" (rval) : \ "i" (SPRN_TBRU)); rval;}) #endif +#define mftb() mftbl() #endif /* !__powerpc64__ */ #define mttbl(v) asm volatile("mttbl %0":: "r"(v)) diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h index 51400baa8d48..9c23baa10b81 100644 --- a/arch/powerpc/include/asm/rtas.h +++ b/arch/powerpc/include/asm/rtas.h @@ -339,9 +339,9 @@ extern int rtas_service_present(const char *service); extern int rtas_call(int token, int, int, int *, ...); void rtas_call_unlocked(struct rtas_args *args, int token, int nargs, int nret, ...); -extern void rtas_restart(char *cmd); +extern void __noreturn rtas_restart(char *cmd); extern void rtas_power_off(void); -extern void rtas_halt(void); +extern void __noreturn rtas_halt(void); extern void rtas_os_term(char *str); extern int rtas_get_sensor(int sensor, int index, int *state); extern int rtas_get_sensor_fast(int sensor, int index, int *state); @@ -351,7 +351,6 @@ extern bool rtas_indicator_present(int token, int *maxindex); extern int rtas_set_indicator(int indicator, int index, int new_value); extern int rtas_set_indicator_fast(int indicator, int index, int new_value); extern void rtas_progress(char *s, unsigned short hex); -extern void rtas_initialize(void); extern int rtas_suspend_cpu(struct rtas_suspend_me_data *data); extern int rtas_suspend_last_cpu(struct rtas_suspend_me_data *data); extern int rtas_online_cpus_mask(cpumask_var_t cpus); @@ -460,9 +459,11 @@ static inline int page_is_rtas_user_buf(unsigned long pfn) /* Not the best place to put pSeries_coalesce_init, will be fixed when we * move some of the rtas suspend-me stuff to pseries */ extern void pSeries_coalesce_init(void); +void rtas_initialize(void); #else static inline int page_is_rtas_user_buf(unsigned long pfn) { return 0;} static inline void pSeries_coalesce_init(void) { } +static inline void rtas_initialize(void) { }; #endif extern int call_rtas(const char *, int, int, unsigned long *, ...); diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h index abf5866e08c6..7dc006b58369 100644 --- a/arch/powerpc/include/asm/sections.h +++ b/arch/powerpc/include/asm/sections.h @@ -62,7 +62,7 @@ static inline int overlaps_kvm_tmp(unsigned long start, unsigned long end) #endif } -#if !defined(_CALL_ELF) || _CALL_ELF != 2 +#ifdef PPC64_ELF_ABI_v1 #undef dereference_function_descriptor static inline void *dereference_function_descriptor(void *ptr) { @@ -73,7 +73,7 @@ static inline void *dereference_function_descriptor(void *ptr) ptr = p; return ptr; } -#endif +#endif /* PPC64_ELF_ABI_v1 */ #endif diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h index e9d384cbd021..654d64c9f3ac 100644 --- a/arch/powerpc/include/asm/setup.h +++ b/arch/powerpc/include/asm/setup.h @@ -26,6 +26,18 @@ void initmem_init(void); void setup_panic(void); #define ARCH_PANIC_TIMEOUT 180 +#ifdef CONFIG_PPC_PSERIES +extern void pseries_enable_reloc_on_exc(void); +extern void pseries_disable_reloc_on_exc(void); +extern void pseries_big_endian_exceptions(void); +extern void pseries_little_endian_exceptions(void); +#else +static inline void pseries_enable_reloc_on_exc(void) {} +static inline void pseries_disable_reloc_on_exc(void) {} +static inline void pseries_big_endian_exceptions(void) {} +static inline void pseries_little_endian_exceptions(void) {} +#endif /* CONFIG_PPC_PSERIES */ + #endif /* !__ASSEMBLY__ */ #endif /* _ASM_POWERPC_SETUP_H */ diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index e1afd4c4f695..0d02c11dc331 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -160,9 +160,6 @@ static inline void set_hard_smp_processor_id(int cpu, int phys) { paca[cpu].hw_cpu_id = phys; } - -extern void smp_release_cpus(void); - #else /* 32-bit */ #ifndef CONFIG_SMP @@ -179,6 +176,12 @@ static inline void set_hard_smp_processor_id(int cpu, int phys) #endif /* !CONFIG_SMP */ #endif /* !CONFIG_PPC64 */ +#if defined(CONFIG_PPC64) && (defined(CONFIG_SMP) || defined(CONFIG_KEXEC)) +extern void smp_release_cpus(void); +#else +static inline void smp_release_cpus(void) { }; +#endif + extern int smt_enabled_at_boot; extern void smp_mpic_probe(void); diff --git a/arch/powerpc/include/asm/smu.h b/arch/powerpc/include/asm/smu.h index f280dd11243f..09f98e861869 100644 --- a/arch/powerpc/include/asm/smu.h +++ b/arch/powerpc/include/asm/smu.h @@ -185,7 +185,7 @@ * x = processor mask * y = op. point index * z = processor freq. step index - * I haven't yet decyphered result codes + * I haven't yet deciphered result codes * */ #define SMU_CMD_POWER_COMMAND 0xaa @@ -471,13 +471,6 @@ extern int smu_get_rtc_time(struct rtc_time *time, int spinwait); extern int smu_set_rtc_time(struct rtc_time *time, int spinwait); /* - * SMU command buffer absolute address, exported by pmac_setup, - * this is allocated very early during boot. - */ -extern unsigned long smu_cmdbuf_abs; - - -/* * Kernel asynchronous i2c interface */ diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h index 523673d7583c..fa37fe93bc02 100644 --- a/arch/powerpc/include/asm/spinlock.h +++ b/arch/powerpc/include/asm/spinlock.h @@ -162,12 +162,38 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock) lock->slock = 0; } -#ifdef CONFIG_PPC64 -extern void arch_spin_unlock_wait(arch_spinlock_t *lock); -#else -#define arch_spin_unlock_wait(lock) \ - do { while (arch_spin_is_locked(lock)) cpu_relax(); } while (0) -#endif +static inline void arch_spin_unlock_wait(arch_spinlock_t *lock) +{ + arch_spinlock_t lock_val; + + smp_mb(); + + /* + * Atomically load and store back the lock value (unchanged). This + * ensures that our observation of the lock value is ordered with + * respect to other lock operations. + */ + __asm__ __volatile__( +"1: " PPC_LWARX(%0, 0, %2, 0) "\n" +" stwcx. %0, 0, %2\n" +" bne- 1b\n" + : "=&r" (lock_val), "+m" (*lock) + : "r" (lock) + : "cr0", "xer"); + + if (arch_spin_value_unlocked(lock_val)) + goto out; + + while (lock->slock) { + HMT_low(); + if (SHARED_PROCESSOR) + __spin_yield(lock); + } + HMT_medium(); + +out: + smp_mb(); +} /* * Read-write spinlocks, allowing multiple readers diff --git a/arch/powerpc/include/asm/string.h b/arch/powerpc/include/asm/string.h index e40010abcaf1..da3cdffca440 100644 --- a/arch/powerpc/include/asm/string.h +++ b/arch/powerpc/include/asm/string.h @@ -3,12 +3,8 @@ #ifdef __KERNEL__ -#define __HAVE_ARCH_STRCPY #define __HAVE_ARCH_STRNCPY -#define __HAVE_ARCH_STRLEN -#define __HAVE_ARCH_STRCMP #define __HAVE_ARCH_STRNCMP -#define __HAVE_ARCH_STRCAT #define __HAVE_ARCH_MEMSET #define __HAVE_ARCH_MEMCPY #define __HAVE_ARCH_MEMMOVE diff --git a/arch/powerpc/include/asm/synch.h b/arch/powerpc/include/asm/synch.h index c50868681f9e..78efe8d5d775 100644 --- a/arch/powerpc/include/asm/synch.h +++ b/arch/powerpc/include/asm/synch.h @@ -13,7 +13,6 @@ extern unsigned int __start___lwsync_fixup, __stop___lwsync_fixup; extern void do_lwsync_fixups(unsigned long value, void *fixup_start, void *fixup_end); -extern void do_final_fixups(void); static inline void eieio(void) { diff --git a/arch/powerpc/include/asm/tce.h b/arch/powerpc/include/asm/tce.h index 743f36b38e5d..12e362935160 100644 --- a/arch/powerpc/include/asm/tce.h +++ b/arch/powerpc/include/asm/tce.h @@ -31,9 +31,6 @@ */ #define TCE_VB 0 #define TCE_PCI 1 -#define TCE_PCI_SWINV_CREATE 2 -#define TCE_PCI_SWINV_FREE 4 -#define TCE_PCI_SWINV_PAIR 8 /* TCE page size is 4096 bytes (1 << 12) */ diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h index 8febc3f66d53..b21bb1f72314 100644 --- a/arch/powerpc/include/asm/thread_info.h +++ b/arch/powerpc/include/asm/thread_info.h @@ -33,6 +33,7 @@ #include <asm/processor.h> #include <asm/page.h> #include <linux/stringify.h> +#include <asm/accounting.h> /* * low level task data. @@ -46,6 +47,9 @@ struct thread_info { #ifdef CONFIG_LIVEPATCH unsigned long *livepatch_sp; #endif +#if defined(CONFIG_VIRT_CPU_ACCOUNTING_NATIVE) && defined(CONFIG_PPC32) + struct cpu_accounting_data accounting; +#endif /* low level flags - has atomic operations done on it */ unsigned long flags ____cacheline_aligned_in_smp; }; diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h index 1092fdd7e737..09211640a0e0 100644 --- a/arch/powerpc/include/asm/time.h +++ b/arch/powerpc/include/asm/time.h @@ -146,7 +146,7 @@ static inline void set_tb(unsigned int upper, unsigned int lower) * in auto-reload mode. The problem is PIT stops counting when it * hits zero. If it would wrap, we could use it just like a decrementer. */ -static inline unsigned int get_dec(void) +static inline u64 get_dec(void) { #if defined(CONFIG_40x) return (mfspr(SPRN_PIT)); @@ -160,10 +160,10 @@ static inline unsigned int get_dec(void) * in when the decrementer generates its interrupt: on the 1 to 0 * transition for Book E/4xx, but on the 0 to -1 transition for others. */ -static inline void set_dec(int val) +static inline void set_dec(u64 val) { #if defined(CONFIG_40x) - mtspr(SPRN_PIT, val); + mtspr(SPRN_PIT, (u32) val); #else #ifndef CONFIG_BOOKE --val; diff --git a/arch/powerpc/include/asm/tsi108.h b/arch/powerpc/include/asm/tsi108.h index d531d9e173ef..c2a955bb0daa 100644 --- a/arch/powerpc/include/asm/tsi108.h +++ b/arch/powerpc/include/asm/tsi108.h @@ -77,7 +77,7 @@ * nodes if your board uses the Broadcom PHYs */ #define TSI108_PHY_MV88E 0 /* Marvel 88Exxxx PHY */ -#define TSI108_PHY_BCM54XX 1 /* Broardcom BCM54xx PHY */ +#define TSI108_PHY_BCM54XX 1 /* Broadcom BCM54xx PHY */ /* Global variables */ diff --git a/arch/powerpc/include/asm/types.h b/arch/powerpc/include/asm/types.h index bfb6ded38ffa..49a0678a53fa 100644 --- a/arch/powerpc/include/asm/types.h +++ b/arch/powerpc/include/asm/types.h @@ -15,6 +15,14 @@ #include <uapi/asm/types.h> +#ifdef __powerpc64__ +#if defined(_CALL_ELF) && _CALL_ELF == 2 +#define PPC64_ELF_ABI_v2 +#else +#define PPC64_ELF_ABI_v1 +#endif +#endif /* __powerpc64__ */ + #ifndef __ASSEMBLY__ typedef __vector128 vector128; diff --git a/arch/powerpc/include/asm/xics.h b/arch/powerpc/include/asm/xics.h index 04ef3ae511da..f5f729c11578 100644 --- a/arch/powerpc/include/asm/xics.h +++ b/arch/powerpc/include/asm/xics.h @@ -42,6 +42,12 @@ extern int icp_hv_init(void); static inline int icp_hv_init(void) { return -ENODEV; } #endif +#ifdef CONFIG_PPC_POWERNV +extern int icp_opal_init(void); +#else +static inline int icp_opal_init(void) { return -ENODEV; } +#endif + /* ICP ops */ struct icp_ops { unsigned int (*get_irq)(void); diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 2da380fcc34c..fe4c075bcf50 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -42,12 +42,11 @@ obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_ppc970.o cpu_setup_pa6t.o obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o obj-$(CONFIG_PPC_BOOK3S_64) += mce.o mce_power.o -obj64-$(CONFIG_RELOCATABLE) += reloc_64.o obj-$(CONFIG_PPC_BOOK3E_64) += exceptions-64e.o idle_book3e.o obj-$(CONFIG_PPC64) += vdso64/ obj-$(CONFIG_ALTIVEC) += vecemu.o obj-$(CONFIG_PPC_970_NAP) += idle_power4.o -obj-$(CONFIG_PPC_P7_NAP) += idle_power7.o +obj-$(CONFIG_PPC_P7_NAP) += idle_book3s.o procfs-y := proc_powerpc.o obj-$(CONFIG_PROC_FS) += $(procfs-y) rtaspci-$(CONFIG_PPC64)-$(CONFIG_PCI) := rtas_pci.o @@ -87,7 +86,7 @@ extra-$(CONFIG_FSL_BOOKE) := head_fsl_booke.o extra-$(CONFIG_8xx) := head_8xx.o extra-y += vmlinux.lds -obj-$(CONFIG_RELOCATABLE_PPC32) += reloc_32.o +obj-$(CONFIG_RELOCATABLE) += reloc_$(CONFIG_WORD_SIZE).o obj-$(CONFIG_PPC32) += entry_32.o setup_32.o obj-$(CONFIG_PPC64) += dma-iommu.o iommu.o diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c index 8e7cb8e2b21a..c7097f933114 100644 --- a/arch/powerpc/kernel/align.c +++ b/arch/powerpc/kernel/align.c @@ -228,9 +228,7 @@ static int emulate_dcbz(struct pt_regs *regs, unsigned char __user *addr) #else #define REG_BYTE(rp, i) *((u8 *)(rp) + (i)) #endif -#endif - -#ifdef __LITTLE_ENDIAN__ +#else #define REG_BYTE(rp, i) (*(((u8 *)((rp) + ((i)>>2)) + ((i)&3)))) #endif @@ -875,6 +873,20 @@ int fix_alignment(struct pt_regs *regs) return emulate_vsx(addr, reg, areg, regs, flags, nb, elsize); } #endif + + /* + * ISA 3.0 (such as P9) copy, copy_first, paste and paste_last alignment + * check. + * + * Send a SIGBUS to the process that caused the fault. + * + * We do not emulate these because paste may contain additional metadata + * when pasting to a co-processor. Furthermore, paste_last is the + * synchronisation point for preceding copy/paste sequences. + */ + if ((instruction & 0xfc0006fe) == PPC_INST_COPY) + return -EIO; + /* A size of 0 indicates an instruction we don't support, with * the exception of DCBZ which is handled as a special case here */ diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 9ea09551a2cd..b89d14c0352c 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -68,17 +68,18 @@ #include "../mm/mmu_decl.h" #endif +#ifdef CONFIG_PPC_8xx +#include <asm/fixmap.h> +#endif + int main(void) { DEFINE(THREAD, offsetof(struct task_struct, thread)); DEFINE(MM, offsetof(struct task_struct, mm)); DEFINE(MMCONTEXTID, offsetof(struct mm_struct, context.id)); #ifdef CONFIG_PPC64 - DEFINE(AUDITCONTEXT, offsetof(struct task_struct, audit_context)); DEFINE(SIGSEGV, SIGSEGV); DEFINE(NMI_MASK, NMI_MASK); - DEFINE(THREAD_DSCR, offsetof(struct thread_struct, dscr)); - DEFINE(THREAD_DSCR_INHERIT, offsetof(struct thread_struct, dscr_inherit)); DEFINE(TASKTHREADPPR, offsetof(struct task_struct, thread.ppr)); #else DEFINE(THREAD_INFO, offsetof(struct task_struct, stack)); @@ -132,17 +133,6 @@ int main(void) DEFINE(THREAD_KVM_VCPU, offsetof(struct thread_struct, kvm_vcpu)); #endif -#ifdef CONFIG_PPC_BOOK3S_64 - DEFINE(THREAD_TAR, offsetof(struct thread_struct, tar)); - DEFINE(THREAD_BESCR, offsetof(struct thread_struct, bescr)); - DEFINE(THREAD_EBBHR, offsetof(struct thread_struct, ebbhr)); - DEFINE(THREAD_EBBRR, offsetof(struct thread_struct, ebbrr)); - DEFINE(THREAD_SIAR, offsetof(struct thread_struct, siar)); - DEFINE(THREAD_SDAR, offsetof(struct thread_struct, sdar)); - DEFINE(THREAD_SIER, offsetof(struct thread_struct, sier)); - DEFINE(THREAD_MMCR0, offsetof(struct thread_struct, mmcr0)); - DEFINE(THREAD_MMCR2, offsetof(struct thread_struct, mmcr2)); -#endif #ifdef CONFIG_PPC_TRANSACTIONAL_MEM DEFINE(PACATMSCRATCH, offsetof(struct paca_struct, tm_scratch)); DEFINE(THREAD_TM_TFHAR, offsetof(struct thread_struct, tm_tfhar)); @@ -178,7 +168,6 @@ int main(void) DEFINE(ICACHEL1LINESPERPAGE, offsetof(struct ppc64_caches, ilines_per_page)); /* paca */ DEFINE(PACA_SIZE, sizeof(struct paca_struct)); - DEFINE(PACA_LOCK_TOKEN, offsetof(struct paca_struct, lock_token)); DEFINE(PACAPACAINDEX, offsetof(struct paca_struct, paca_index)); DEFINE(PACAPROCSTART, offsetof(struct paca_struct, cpu_start)); DEFINE(PACAKSAVE, offsetof(struct paca_struct, kstack)); @@ -255,13 +244,28 @@ int main(void) DEFINE(PACAHWCPUID, offsetof(struct paca_struct, hw_cpu_id)); DEFINE(PACAKEXECSTATE, offsetof(struct paca_struct, kexec_state)); DEFINE(PACA_DSCR_DEFAULT, offsetof(struct paca_struct, dscr_default)); - DEFINE(PACA_STARTTIME, offsetof(struct paca_struct, starttime)); - DEFINE(PACA_STARTTIME_USER, offsetof(struct paca_struct, starttime_user)); - DEFINE(PACA_USER_TIME, offsetof(struct paca_struct, user_time)); - DEFINE(PACA_SYSTEM_TIME, offsetof(struct paca_struct, system_time)); + DEFINE(ACCOUNT_STARTTIME, + offsetof(struct paca_struct, accounting.starttime)); + DEFINE(ACCOUNT_STARTTIME_USER, + offsetof(struct paca_struct, accounting.starttime_user)); + DEFINE(ACCOUNT_USER_TIME, + offsetof(struct paca_struct, accounting.user_time)); + DEFINE(ACCOUNT_SYSTEM_TIME, + offsetof(struct paca_struct, accounting.system_time)); DEFINE(PACA_TRAP_SAVE, offsetof(struct paca_struct, trap_save)); DEFINE(PACA_NAPSTATELOST, offsetof(struct paca_struct, nap_state_lost)); DEFINE(PACA_SPRG_VDSO, offsetof(struct paca_struct, sprg_vdso)); +#else /* CONFIG_PPC64 */ +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE + DEFINE(ACCOUNT_STARTTIME, + offsetof(struct thread_info, accounting.starttime)); + DEFINE(ACCOUNT_STARTTIME_USER, + offsetof(struct thread_info, accounting.starttime_user)); + DEFINE(ACCOUNT_USER_TIME, + offsetof(struct thread_info, accounting.user_time)); + DEFINE(ACCOUNT_SYSTEM_TIME, + offsetof(struct thread_info, accounting.system_time)); +#endif #endif /* CONFIG_PPC64 */ /* RTAS */ @@ -275,12 +279,6 @@ int main(void) /* Create extra stack space for SRR0 and SRR1 when calling prom/rtas. */ DEFINE(PROM_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16); DEFINE(RTAS_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs) + 16); - - /* hcall statistics */ - DEFINE(HCALL_STAT_SIZE, sizeof(struct hcall_stats)); - DEFINE(HCALL_STAT_CALLS, offsetof(struct hcall_stats, num_calls)); - DEFINE(HCALL_STAT_TB, offsetof(struct hcall_stats, tb_total)); - DEFINE(HCALL_STAT_PURR, offsetof(struct hcall_stats, purr_total)); #endif /* CONFIG_PPC64 */ DEFINE(GPR0, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[0])); DEFINE(GPR1, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[1])); @@ -298,23 +296,6 @@ int main(void) DEFINE(GPR13, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[13])); #ifndef CONFIG_PPC64 DEFINE(GPR14, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[14])); - DEFINE(GPR15, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[15])); - DEFINE(GPR16, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[16])); - DEFINE(GPR17, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[17])); - DEFINE(GPR18, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[18])); - DEFINE(GPR19, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[19])); - DEFINE(GPR20, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[20])); - DEFINE(GPR21, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[21])); - DEFINE(GPR22, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[22])); - DEFINE(GPR23, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[23])); - DEFINE(GPR24, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[24])); - DEFINE(GPR25, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[25])); - DEFINE(GPR26, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[26])); - DEFINE(GPR27, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[27])); - DEFINE(GPR28, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[28])); - DEFINE(GPR29, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[29])); - DEFINE(GPR30, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[30])); - DEFINE(GPR31, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, gpr[31])); #endif /* CONFIG_PPC64 */ /* * Note: these symbols include _ because they overlap with special @@ -332,7 +313,6 @@ int main(void) DEFINE(RESULT, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, result)); DEFINE(_TRAP, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, trap)); #ifndef CONFIG_PPC64 - DEFINE(_MQ, STACK_FRAME_OVERHEAD+offsetof(struct pt_regs, mq)); /* * The PowerPC 400-class & Book-E processors have neither the DAR * nor the DSISR SPRs. Hence, we overload them to hold the similar @@ -369,8 +349,6 @@ int main(void) DEFINE(SAVED_KSP_LIMIT, STACK_INT_FRAME_SIZE+offsetof(struct exception_regs, saved_ksp_limit)); #endif #endif - DEFINE(CLONE_VM, CLONE_VM); - DEFINE(CLONE_UNTRACED, CLONE_UNTRACED); #ifndef CONFIG_PPC64 DEFINE(MM_PGD, offsetof(struct mm_struct, pgd)); @@ -380,7 +358,6 @@ int main(void) DEFINE(CPU_SPEC_FEATURES, offsetof(struct cpu_spec, cpu_features)); DEFINE(CPU_SPEC_SETUP, offsetof(struct cpu_spec, cpu_setup)); DEFINE(CPU_SPEC_RESTORE, offsetof(struct cpu_spec, cpu_restore)); - DEFINE(CPU_DOWN_FLUSH, offsetof(struct cpu_spec, cpu_down_flush)); DEFINE(pbe_address, offsetof(struct pbe, address)); DEFINE(pbe_orig_address, offsetof(struct pbe, orig_address)); @@ -395,7 +372,6 @@ int main(void) DEFINE(CFG_TB_ORIG_STAMP, offsetof(struct vdso_data, tb_orig_stamp)); DEFINE(CFG_TB_TICKS_PER_SEC, offsetof(struct vdso_data, tb_ticks_per_sec)); DEFINE(CFG_TB_TO_XS, offsetof(struct vdso_data, tb_to_xs)); - DEFINE(CFG_STAMP_XSEC, offsetof(struct vdso_data, stamp_xsec)); DEFINE(CFG_TB_UPDATE_COUNT, offsetof(struct vdso_data, tb_update_count)); DEFINE(CFG_TZ_MINUTEWEST, offsetof(struct vdso_data, tz_minuteswest)); DEFINE(CFG_TZ_DSTTIME, offsetof(struct vdso_data, tz_dsttime)); @@ -517,7 +493,6 @@ int main(void) DEFINE(KVM_HOST_SDR1, offsetof(struct kvm, arch.host_sdr1)); DEFINE(KVM_NEED_FLUSH, offsetof(struct kvm, arch.need_tlb_flush.bits)); DEFINE(KVM_ENABLED_HCALLS, offsetof(struct kvm, arch.enabled_hcalls)); - DEFINE(KVM_LPCR, offsetof(struct kvm, arch.lpcr)); DEFINE(KVM_VRMA_SLB_V, offsetof(struct kvm, arch.vrma_slb_v)); DEFINE(VCPU_DSISR, offsetof(struct kvm_vcpu, arch.shregs.dsisr)); DEFINE(VCPU_DAR, offsetof(struct kvm_vcpu, arch.shregs.dar)); @@ -528,7 +503,6 @@ int main(void) DEFINE(VCPU_THREAD_CPU, offsetof(struct kvm_vcpu, arch.thread_cpu)); #endif #ifdef CONFIG_PPC_BOOK3S - DEFINE(VCPU_VCPUID, offsetof(struct kvm_vcpu, vcpu_id)); DEFINE(VCPU_PURR, offsetof(struct kvm_vcpu, arch.purr)); DEFINE(VCPU_SPURR, offsetof(struct kvm_vcpu, arch.spurr)); DEFINE(VCPU_IC, offsetof(struct kvm_vcpu, arch.ic)); @@ -566,7 +540,6 @@ int main(void) DEFINE(VCPU_CFAR, offsetof(struct kvm_vcpu, arch.cfar)); DEFINE(VCPU_PPR, offsetof(struct kvm_vcpu, arch.ppr)); DEFINE(VCPU_FSCR, offsetof(struct kvm_vcpu, arch.fscr)); - DEFINE(VCPU_SHADOW_FSCR, offsetof(struct kvm_vcpu, arch.shadow_fscr)); DEFINE(VCPU_PSPB, offsetof(struct kvm_vcpu, arch.pspb)); DEFINE(VCPU_EBBHR, offsetof(struct kvm_vcpu, arch.ebbhr)); DEFINE(VCPU_EBBRR, offsetof(struct kvm_vcpu, arch.ebbrr)); @@ -576,7 +549,6 @@ int main(void) DEFINE(VCPU_TCSCR, offsetof(struct kvm_vcpu, arch.tcscr)); DEFINE(VCPU_ACOP, offsetof(struct kvm_vcpu, arch.acop)); DEFINE(VCPU_WORT, offsetof(struct kvm_vcpu, arch.wort)); - DEFINE(VCPU_SHADOW_SRR1, offsetof(struct kvm_vcpu, arch.shadow_srr1)); DEFINE(VCORE_ENTRY_EXIT, offsetof(struct kvmppc_vcore, entry_exit_map)); DEFINE(VCORE_IN_GUEST, offsetof(struct kvmppc_vcore, in_guest)); DEFINE(VCORE_NAPPING_THREADS, offsetof(struct kvmppc_vcore, napping_threads)); @@ -693,7 +665,6 @@ int main(void) DEFINE(KVM_SPLIT_RPR, offsetof(struct kvm_split_mode, rpr)); DEFINE(KVM_SPLIT_PMMAR, offsetof(struct kvm_split_mode, pmmar)); DEFINE(KVM_SPLIT_LDBAR, offsetof(struct kvm_split_mode, ldbar)); - DEFINE(KVM_SPLIT_SIZE, offsetof(struct kvm_split_mode, subcore_size)); DEFINE(KVM_SPLIT_DO_NAP, offsetof(struct kvm_split_mode, do_nap)); DEFINE(KVM_SPLIT_NAPPED, offsetof(struct kvm_split_mode, napped)); #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */ @@ -756,7 +727,6 @@ int main(void) #ifdef CONFIG_KVM_BOOKE_HV DEFINE(VCPU_HOST_MAS4, offsetof(struct kvm_vcpu, arch.host_mas4)); DEFINE(VCPU_HOST_MAS6, offsetof(struct kvm_vcpu, arch.host_mas6)); - DEFINE(VCPU_EPLC, offsetof(struct kvm_vcpu, arch.eplc)); #endif #ifdef CONFIG_KVM_EXIT_TIMING @@ -783,5 +753,9 @@ int main(void) DEFINE(PPC_DBELL_SERVER, PPC_DBELL_SERVER); +#ifdef CONFIG_PPC_8xx + DEFINE(VIRT_IMMR_BASE, (u64)__fix_to_virt(FIX_IMMR_BASE)); +#endif + return 0; } diff --git a/arch/powerpc/kernel/cpu_setup_6xx.S b/arch/powerpc/kernel/cpu_setup_6xx.S index f8cd9fba4d35..c5e5a94d9892 100644 --- a/arch/powerpc/kernel/cpu_setup_6xx.S +++ b/arch/powerpc/kernel/cpu_setup_6xx.S @@ -156,7 +156,7 @@ setup_7410_workarounds: blr /* 740/750/7400/7410 - * Enable Store Gathering (SGE), Address Brodcast (ABE), + * Enable Store Gathering (SGE), Address Broadcast (ABE), * Branch History Table (BHTE), Branch Target ICache (BTIC) * Dynamic Power Management (DPM), Speculative (SPD) * Clear Instruction cache throttling (ICTC) diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S index 584e119fa8b0..52ff3f025437 100644 --- a/arch/powerpc/kernel/cpu_setup_power.S +++ b/arch/powerpc/kernel/cpu_setup_power.S @@ -51,6 +51,7 @@ _GLOBAL(__setup_cpu_power8) mflr r11 bl __init_FSCR bl __init_PMU + bl __init_PMU_ISA207 bl __init_hvmode_206 mtlr r11 beqlr @@ -62,6 +63,7 @@ _GLOBAL(__setup_cpu_power8) bl __init_HFSCR bl __init_tlb_power8 bl __init_PMU_HV + bl __init_PMU_HV_ISA207 mtlr r11 blr @@ -69,6 +71,7 @@ _GLOBAL(__restore_cpu_power8) mflr r11 bl __init_FSCR bl __init_PMU + bl __init_PMU_ISA207 mfmsr r3 rldicl. r0,r3,4,63 mtlr r11 @@ -81,12 +84,14 @@ _GLOBAL(__restore_cpu_power8) bl __init_HFSCR bl __init_tlb_power8 bl __init_PMU_HV + bl __init_PMU_HV_ISA207 mtlr r11 blr _GLOBAL(__setup_cpu_power9) mflr r11 bl __init_FSCR + bl __init_PMU bl __init_hvmode_206 mtlr r11 beqlr @@ -94,15 +99,18 @@ _GLOBAL(__setup_cpu_power9) mtspr SPRN_LPID,r0 mfspr r3,SPRN_LPCR ori r3, r3, LPCR_PECEDH + ori r3, r3, LPCR_HVICE bl __init_LPCR bl __init_HFSCR bl __init_tlb_power9 + bl __init_PMU_HV mtlr r11 blr _GLOBAL(__restore_cpu_power9) mflr r11 bl __init_FSCR + bl __init_PMU mfmsr r3 rldicl. r0,r3,4,63 mtlr r11 @@ -111,9 +119,11 @@ _GLOBAL(__restore_cpu_power9) mtspr SPRN_LPID,r0 mfspr r3,SPRN_LPCR ori r3, r3, LPCR_PECEDH + ori r3, r3, LPCR_HVICE bl __init_LPCR bl __init_HFSCR bl __init_tlb_power9 + bl __init_PMU_HV mtlr r11 blr @@ -208,14 +218,22 @@ __init_tlb_power9: __init_PMU_HV: li r5,0 mtspr SPRN_MMCRC,r5 + blr + +__init_PMU_HV_ISA207: + li r5,0 mtspr SPRN_MMCRH,r5 blr __init_PMU: li r5,0 - mtspr SPRN_MMCRS,r5 mtspr SPRN_MMCRA,r5 mtspr SPRN_MMCR0,r5 mtspr SPRN_MMCR1,r5 mtspr SPRN_MMCR2,r5 blr + +__init_PMU_ISA207: + li r5,0 + mtspr SPRN_MMCRS,r5 + blr diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index eeeacf6235a3..d81f826d1029 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -137,7 +137,7 @@ static struct cpu_spec __initdata cpu_specs[] = { .cpu_name = "POWER4 (gp)", .cpu_features = CPU_FTRS_POWER4, .cpu_user_features = COMMON_USER_POWER4, - .mmu_features = MMU_FTRS_POWER4, + .mmu_features = MMU_FTRS_POWER4 | MMU_FTR_TLBIE_CROP_VA, .icache_bsize = 128, .dcache_bsize = 128, .num_pmcs = 8, @@ -152,7 +152,7 @@ static struct cpu_spec __initdata cpu_specs[] = { .cpu_name = "POWER4+ (gq)", .cpu_features = CPU_FTRS_POWER4, .cpu_user_features = COMMON_USER_POWER4, - .mmu_features = MMU_FTRS_POWER4, + .mmu_features = MMU_FTRS_POWER4 | MMU_FTR_TLBIE_CROP_VA, .icache_bsize = 128, .dcache_bsize = 128, .num_pmcs = 8, diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c index 2bb252c01f07..47b63de81f9b 100644 --- a/arch/powerpc/kernel/crash.c +++ b/arch/powerpc/kernel/crash.c @@ -48,8 +48,8 @@ int crashing_cpu = -1; static int time_to_dump; #define CRASH_HANDLER_MAX 3 -/* NULL terminated list of shutdown handles */ -static crash_shutdown_t crash_shutdown_handles[CRASH_HANDLER_MAX+1]; +/* List of shutdown handles */ +static crash_shutdown_t crash_shutdown_handles[CRASH_HANDLER_MAX]; static DEFINE_SPINLOCK(crash_handlers_lock); static unsigned long crash_shutdown_buf[JMP_BUF_LEN]; @@ -65,7 +65,7 @@ static int handle_fault(struct pt_regs *regs) #ifdef CONFIG_SMP static atomic_t cpus_in_crash; -void crash_ipi_callback(struct pt_regs *regs) +static void crash_ipi_callback(struct pt_regs *regs) { static cpumask_t cpus_state_saved = CPU_MASK_NONE; @@ -288,9 +288,14 @@ int crash_shutdown_unregister(crash_shutdown_t handler) rc = 1; } else { /* Shift handles down */ - for (; crash_shutdown_handles[i]; i++) + for (; i < (CRASH_HANDLER_MAX - 1); i++) crash_shutdown_handles[i] = crash_shutdown_handles[i+1]; + /* + * Reset last entry to NULL now that it has been shifted down, + * this will allow new handles to be added here. + */ + crash_shutdown_handles[i] = NULL; rc = 0; } @@ -346,7 +351,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs) old_handler = __debugger_fault_handler; __debugger_fault_handler = handle_fault; crash_shutdown_cpu = smp_processor_id(); - for (i = 0; crash_shutdown_handles[i]; i++) { + for (i = 0; i < CRASH_HANDLER_MAX && crash_shutdown_handles[i]; i++) { if (setjmp(crash_shutdown_buf) == 0) { /* * Insert syncs and delay to ensure diff --git a/arch/powerpc/kernel/eeh_cache.c b/arch/powerpc/kernel/eeh_cache.c index ddbcfab7efdf..d4cc26618809 100644 --- a/arch/powerpc/kernel/eeh_cache.c +++ b/arch/powerpc/kernel/eeh_cache.c @@ -114,9 +114,9 @@ static void eeh_addr_cache_print(struct pci_io_addr_cache *cache) while (n) { struct pci_io_addr_range *piar; piar = rb_entry(n, struct pci_io_addr_range, rb_node); - pr_debug("PCI: %s addr range %d [%lx-%lx]: %s\n", + pr_debug("PCI: %s addr range %d [%pap-%pap]: %s\n", (piar->flags & IORESOURCE_IO) ? "i/o" : "mem", cnt, - piar->addr_lo, piar->addr_hi, pci_name(piar->pcidev)); + &piar->addr_lo, &piar->addr_hi, pci_name(piar->pcidev)); cnt++; n = rb_next(n); } @@ -159,8 +159,8 @@ eeh_addr_cache_insert(struct pci_dev *dev, resource_size_t alo, piar->flags = flags; #ifdef DEBUG - pr_debug("PIAR: insert range=[%lx:%lx] dev=%s\n", - alo, ahi, pci_name(dev)); + pr_debug("PIAR: insert range=[%pap:%pap] dev=%s\n", + &alo, &ahi, pci_name(dev)); #endif rb_link_node(&piar->rb_node, parent, p); diff --git a/arch/powerpc/kernel/eeh_dev.c b/arch/powerpc/kernel/eeh_dev.c index 7815095fe3d8..d6b2ca70d14d 100644 --- a/arch/powerpc/kernel/eeh_dev.c +++ b/arch/powerpc/kernel/eeh_dev.c @@ -44,14 +44,13 @@ /** * eeh_dev_init - Create EEH device according to OF node * @pdn: PCI device node - * @data: PHB * * It will create EEH device according to the given OF node. The function * might be called by PCI emunation, DR, PHB hotplug. */ -void *eeh_dev_init(struct pci_dn *pdn, void *data) +struct eeh_dev *eeh_dev_init(struct pci_dn *pdn) { - struct pci_controller *phb = data; + struct pci_controller *phb = pdn->phb; struct eeh_dev *edev; /* Allocate EEH device */ @@ -69,7 +68,7 @@ void *eeh_dev_init(struct pci_dn *pdn, void *data) INIT_LIST_HEAD(&edev->list); INIT_LIST_HEAD(&edev->rmv_list); - return NULL; + return edev; } /** @@ -81,16 +80,8 @@ void *eeh_dev_init(struct pci_dn *pdn, void *data) */ void eeh_dev_phb_init_dynamic(struct pci_controller *phb) { - struct pci_dn *root = phb->pci_data; - /* EEH PE for PHB */ eeh_phb_pe_create(phb); - - /* EEH device for PHB */ - eeh_dev_init(root, phb); - - /* EEH devices for children OF nodes */ - traverse_pci_dn(root, eeh_dev_init, phb); } /** @@ -106,8 +97,6 @@ static int __init eeh_dev_phb_init(void) list_for_each_entry_safe(phb, tmp, &hose_list, list_node) eeh_dev_phb_init_dynamic(phb); - pr_info("EEH: devices created\n"); - return 0; } diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c index d70101e1e25c..5f36e8a70daa 100644 --- a/arch/powerpc/kernel/eeh_driver.c +++ b/arch/powerpc/kernel/eeh_driver.c @@ -139,7 +139,7 @@ static void eeh_enable_irq(struct pci_dev *dev) * into it. * * That's just wrong.The warning in the core code is - * there to tell people to fix their assymetries in + * there to tell people to fix their asymmetries in * their own code, not by abusing the core information * to avoid it. * diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 2405631e91a2..9899032230b4 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -175,6 +175,12 @@ transfer_to_handler: addi r12,r12,-1 stw r12,4(r11) #endif +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE + CURRENT_THREAD_INFO(r9, r1) + tophys(r9, r9) + ACCOUNT_CPU_USER_ENTRY(r9, r11, r12) +#endif + b 3f 2: /* if from kernel, check interrupted DOZE/NAP mode and @@ -398,6 +404,13 @@ BEGIN_FTR_SECTION lwarx r7,0,r1 END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX) stwcx. r0,0,r1 /* to clear the reservation */ +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE + andi. r4,r8,MSR_PR + beq 3f + CURRENT_THREAD_INFO(r4, r1) + ACCOUNT_CPU_USER_EXIT(r4, r5, r7) +3: +#endif lwz r4,_LINK(r1) lwz r5,_CCR(r1) mtlr r4 @@ -769,6 +782,10 @@ restore_user: andis. r10,r0,DBCR0_IDM@h bnel- load_dbcr0 #endif +#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE + CURRENT_THREAD_INFO(r9, r1) + ACCOUNT_CPU_USER_EXIT(r9, r10, r11) +#endif b restore diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 73e461a3dfbb..fcb2887f5a33 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -72,7 +72,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_TM) std r0,GPR0(r1) std r10,GPR1(r1) beq 2f /* if from kernel mode */ - ACCOUNT_CPU_USER_ENTRY(r10, r11) + ACCOUNT_CPU_USER_ENTRY(r13, r10, r11) 2: std r2,GPR2(r1) std r3,GPR3(r1) mfcr r2 @@ -246,7 +246,7 @@ END_FTR_SECTION_IFCLR(CPU_FTR_STCX_CHECKS_ADDRESS) ld r4,_LINK(r1) beq- 1f - ACCOUNT_CPU_USER_EXIT(r11, r12) + ACCOUNT_CPU_USER_EXIT(r13, r11, r12) BEGIN_FTR_SECTION HMT_MEDIUM_LOW @@ -453,7 +453,7 @@ _GLOBAL(ret_from_kernel_thread) REST_NVGPRS(r1) mtlr r14 mr r3,r15 -#if defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 mr r12,r14 #endif blrl @@ -859,7 +859,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) BEGIN_FTR_SECTION mtspr SPRN_PPR,r2 /* Restore PPR */ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) - ACCOUNT_CPU_USER_EXIT(r2, r4) + ACCOUNT_CPU_USER_EXIT(r13, r2, r4) REST_GPR(13, r1) 1: mtspr SPRN_SRR1,r3 diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index 488e6314f993..38a1f96430e1 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -386,7 +386,7 @@ exc_##n##_common: \ std r10,_NIP(r1); /* save SRR0 to stackframe */ \ std r11,_MSR(r1); /* save SRR1 to stackframe */ \ beq 2f; /* if from kernel mode */ \ - ACCOUNT_CPU_USER_ENTRY(r10,r11);/* accounting (uses cr0+eq) */ \ + ACCOUNT_CPU_USER_ENTRY(r13,r10,r11);/* accounting (uses cr0+eq) */ \ 2: ld r3,excf+EX_R10(r13); /* get back r10 */ \ ld r4,excf+EX_R11(r13); /* get back r11 */ \ mfspr r5,scratch; /* get back r13 */ \ @@ -453,7 +453,7 @@ exc_##n##_bad_stack: \ sth r1,PACA_TRAP_SAVE(r13); /* store trap */ \ b bad_stack_book3e; /* bad stack error */ -/* WARNING: If you change the layout of this stub, make sure you chcek +/* WARNING: If you change the layout of this stub, make sure you check * the debug exception handler which handles single stepping * into exceptions from userspace, and the MM code in * arch/powerpc/mm/tlb_nohash.c which patches the branch here @@ -1059,7 +1059,7 @@ fast_exception_return: andi. r6,r10,MSR_PR REST_2GPRS(6, r1) beq 1f - ACCOUNT_CPU_USER_EXIT(r10, r11) + ACCOUNT_CPU_USER_EXIT(r13, r10, r11) ld r0,GPR13(r1) 1: stdcx. r0,0,r1 /* to clear the reservation */ diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 8bcc1b457115..6200e4925d26 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -107,25 +107,9 @@ BEGIN_FTR_SECTION beq 9f cmpwi cr3,r13,2 - - /* - * Check if last bit of HSPGR0 is set. This indicates whether we are - * waking up from winkle. - */ GET_PACA(r13) - clrldi r5,r13,63 - clrrdi r13,r13,1 - cmpwi cr4,r5,1 - mtspr SPRN_HSPRG0,r13 - - lbz r0,PACA_THREAD_IDLE_STATE(r13) - cmpwi cr2,r0,PNV_THREAD_NAP - bgt cr2,8f /* Either sleep or Winkle */ + bl pnv_restore_hyp_resource - /* Waking up from nap should not cause hypervisor state loss */ - bgt cr3,. - - /* Waking up from nap */ li r0,PNV_THREAD_RUNNING stb r0,PACA_THREAD_IDLE_STATE(r13) /* Clear thread state */ @@ -143,13 +127,9 @@ BEGIN_FTR_SECTION /* Return SRR1 from power7_nap() */ mfspr r3,SPRN_SRR1 - beq cr3,2f - b power7_wakeup_noloss -2: b power7_wakeup_loss - - /* Fast Sleep wakeup on PowerNV */ -8: GET_PACA(r13) - b power7_wakeup_tb_loss + blt cr3,2f + b pnv_wakeup_loss +2: b pnv_wakeup_noloss 9: END_FTR_SECTION_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206) @@ -351,6 +331,12 @@ hv_doorbell_trampoline: EXCEPTION_PROLOG_0(PACA_EXGEN) b h_doorbell_hv + . = 0xea0 +hv_virt_irq_trampoline: + SET_SCRATCH0(r13) + EXCEPTION_PROLOG_0(PACA_EXGEN) + b h_virt_irq_hv + /* We need to deal with the Altivec unavailable exception * here which is at 0xf20, thus in the middle of the * prolog code of the PerformanceMonitor one. A little @@ -601,6 +587,9 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR) MASKABLE_EXCEPTION_HV_OOL(0xe82, h_doorbell) KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xe82) + MASKABLE_EXCEPTION_HV_OOL(0xea2, h_virt_irq) + KVM_HANDLER(PACA_EXGEN, EXC_HV, 0xea2) + /* moved from 0xf00 */ STD_EXCEPTION_PSERIES_OOL(0xf00, performance_monitor) KVM_HANDLER(PACA_EXGEN, EXC_STD, 0xf00) @@ -680,6 +669,8 @@ _GLOBAL(__replay_interrupt) BEGIN_FTR_SECTION cmpwi r3,0xe80 beq h_doorbell_common + cmpwi r3,0xea0 + beq h_virt_irq_common FTR_SECTION_ELSE cmpwi r3,0xa00 beq doorbell_super_common @@ -754,6 +745,7 @@ kvmppc_skip_Hinterrupt: #else STD_EXCEPTION_COMMON_ASYNC(0xe80, h_doorbell, unknown_exception) #endif + STD_EXCEPTION_COMMON_ASYNC(0xea0, h_virt_irq, do_IRQ) STD_EXCEPTION_COMMON_ASYNC(0xf00, performance_monitor, performance_monitor_exception) STD_EXCEPTION_COMMON(0x1300, instruction_breakpoint, instruction_breakpoint_exception) STD_EXCEPTION_COMMON(0x1502, denorm, unknown_exception) @@ -762,11 +754,6 @@ kvmppc_skip_Hinterrupt: #else STD_EXCEPTION_COMMON(0x1700, altivec_assist, unknown_exception) #endif -#ifdef CONFIG_CBE_RAS - STD_EXCEPTION_COMMON(0x1200, cbe_system_error, cbe_system_error_exception) - STD_EXCEPTION_COMMON(0x1600, cbe_maintenance, cbe_maintenance_exception) - STD_EXCEPTION_COMMON(0x1800, cbe_thermal, cbe_thermal_exception) -#endif /* CONFIG_CBE_RAS */ /* * Relocation-on interrupts: A subset of the interrupts can be delivered @@ -877,6 +864,12 @@ h_doorbell_relon_trampoline: EXCEPTION_PROLOG_0(PACA_EXGEN) b h_doorbell_relon_hv + . = 0x4ea0 +h_virt_irq_relon_trampoline: + SET_SCRATCH0(r13) + EXCEPTION_PROLOG_0(PACA_EXGEN) + b h_virt_irq_relon_hv + . = 0x4f00 performance_monitor_relon_pseries_trampoline: SET_SCRATCH0(r13) @@ -1131,12 +1124,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX) bl vsx_unavailable_exception b ret_from_except - STD_EXCEPTION_COMMON(0xf60, facility_unavailable, facility_unavailable_exception) - STD_EXCEPTION_COMMON(0xf80, hv_facility_unavailable, facility_unavailable_exception) - /* Equivalents to the above handlers for relocation-on interrupt vectors */ STD_RELON_EXCEPTION_HV_OOL(0xe40, emulation_assist) MASKABLE_RELON_EXCEPTION_HV_OOL(0xe80, h_doorbell) + MASKABLE_RELON_EXCEPTION_HV_OOL(0xea0, h_virt_irq) STD_RELON_EXCEPTION_PSERIES_OOL(0xf00, performance_monitor) STD_RELON_EXCEPTION_PSERIES_OOL(0xf20, altivec_unavailable) @@ -1170,6 +1161,15 @@ fwnmi_data_area: . = 0x8000 #endif /* defined(CONFIG_PPC_PSERIES) || defined(CONFIG_PPC_POWERNV) */ + STD_EXCEPTION_COMMON(0xf60, facility_unavailable, facility_unavailable_exception) + STD_EXCEPTION_COMMON(0xf80, hv_facility_unavailable, facility_unavailable_exception) + +#ifdef CONFIG_CBE_RAS + STD_EXCEPTION_COMMON(0x1200, cbe_system_error, cbe_system_error_exception) + STD_EXCEPTION_COMMON(0x1600, cbe_maintenance, cbe_maintenance_exception) + STD_EXCEPTION_COMMON(0x1800, cbe_thermal, cbe_thermal_exception) +#endif /* CONFIG_CBE_RAS */ + .globl hmi_exception_early hmi_exception_early: EXCEPTION_PROLOG_1(PACA_EXGEN, NOTEST, 0xe60) @@ -1289,7 +1289,7 @@ machine_check_handle_early: GET_PACA(r13) ld r1,PACAR1(r13) li r3,PNV_THREAD_NAP - b power7_enter_nap_mode + b pnv_enter_arch207_idle_mode 4: #endif /* diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index 3cb3b02a13dd..b3a663333d36 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -1009,8 +1009,7 @@ static int fadump_invalidate_dump(struct fadump_mem_struct *fdm) } while (wait_time); if (rc) { - printk(KERN_ERR "Failed to invalidate firmware-assisted dump " - "rgistration. unexpected error(%d).\n", rc); + pr_err("Failed to invalidate firmware-assisted dump registration. Unexpected error (%d).\n", rc); return rc; } fw_dump.dump_active = 0; diff --git a/arch/powerpc/kernel/ftrace.c b/arch/powerpc/kernel/ftrace.c index 1123a4d8d8dd..cc52d9795f88 100644 --- a/arch/powerpc/kernel/ftrace.c +++ b/arch/powerpc/kernel/ftrace.c @@ -144,6 +144,21 @@ __ftrace_make_nop(struct module *mod, return -EINVAL; } +#ifdef CC_USING_MPROFILE_KERNEL + /* When using -mkernel_profile there is no load to jump over */ + pop = PPC_INST_NOP; + + if (probe_kernel_read(&op, (void *)(ip - 4), 4)) { + pr_err("Fetching instruction at %lx failed.\n", ip - 4); + return -EFAULT; + } + + /* We expect either a mflr r0, or a std r0, LRSAVE(r1) */ + if (op != PPC_INST_MFLR && op != PPC_INST_STD_LR) { + pr_err("Unexpected instruction %08x around bl _mcount\n", op); + return -EINVAL; + } +#else /* * Our original call site looks like: * @@ -170,24 +185,10 @@ __ftrace_make_nop(struct module *mod, } if (op != PPC_INST_LD_TOC) { - unsigned int inst; - - if (probe_kernel_read(&inst, (void *)(ip - 4), 4)) { - pr_err("Fetching instruction at %lx failed.\n", ip - 4); - return -EFAULT; - } - - /* We expect either a mlfr r0, or a std r0, LRSAVE(r1) */ - if (inst != PPC_INST_MFLR && inst != PPC_INST_STD_LR) { - pr_err("Unexpected instructions around bl _mcount\n" - "when enabling dynamic ftrace!\t" - "(%08x,bl,%08x)\n", inst, op); - return -EINVAL; - } - - /* When using -mkernel_profile there is no load to jump over */ - pop = PPC_INST_NOP; + pr_err("Expected %08x found %08x\n", PPC_INST_LD_TOC, op); + return -EINVAL; } +#endif /* CC_USING_MPROFILE_KERNEL */ if (patch_instruction((unsigned int *)ip, pop)) { pr_err("Patching NOP failed.\n"); @@ -608,7 +609,7 @@ unsigned long __init arch_syscall_addr(int nr) } #endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_PPC64 */ -#if defined(CONFIG_PPC64) && (!defined(_CALL_ELF) || _CALL_ELF != 2) +#ifdef PPC64_ELF_ABI_v1 char *arch_ftrace_match_adjust(char *str, const char *search) { if (str[0] == '.' && search[0] != '.') @@ -616,4 +617,4 @@ char *arch_ftrace_match_adjust(char *str, const char *search) else return str; } -#endif /* defined(CONFIG_PPC64) && (!defined(_CALL_ELF) || _CALL_ELF != 2) */ +#endif /* PPC64_ELF_ABI_v1 */ diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S index 2d14774af6b4..f765b0434731 100644 --- a/arch/powerpc/kernel/head_64.S +++ b/arch/powerpc/kernel/head_64.S @@ -401,7 +401,7 @@ generic_secondary_common_init: ld r12,CPU_SPEC_RESTORE(r23) cmpdi 0,r12,0 beq 3f -#if !defined(_CALL_ELF) || _CALL_ELF != 2 +#ifdef PPC64_ELF_ABI_v1 ld r12,0(r12) #endif mtctr r12 @@ -941,7 +941,7 @@ start_here_multiplatform: mtspr SPRN_SRR1,r4 RFI b . /* prevent speculative execution */ - + /* This is where all platforms converge execution */ start_here_common: @@ -951,9 +951,6 @@ start_here_common: /* Load the TOC (virtual address) */ ld r2,PACATOC(r13) - /* Do more system initializations in virtual mode */ - bl setup_system - /* Mark interrupts soft and hard disabled (they might be enabled * in the PACA when doing hotplug) */ diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 80c69472314e..43ddaae42baf 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -30,6 +30,7 @@ #include <asm/ppc_asm.h> #include <asm/asm-offsets.h> #include <asm/ptrace.h> +#include <asm/fixmap.h> /* Macro to make the code more readable. */ #ifdef CONFIG_8xx_CPU6 @@ -383,28 +384,57 @@ InstructionTLBMiss: EXCEPTION_EPILOG_0 rfi +/* + * Bottom part of DataStoreTLBMiss handler for IMMR area + * not enough space in the DataStoreTLBMiss area + */ +DTLBMissIMMR: + mtcr r10 + /* Set 512k byte guarded page and mark it valid */ + li r10, MD_PS512K | MD_GUARDED | MD_SVALID + MTSPR_CPU6(SPRN_MD_TWC, r10, r11) + mfspr r10, SPRN_IMMR /* Get current IMMR */ + rlwinm r10, r10, 0, 0xfff80000 /* Get 512 kbytes boundary */ + ori r10, r10, 0xf0 | MD_SPS16K | _PAGE_SHARED | _PAGE_DIRTY | \ + _PAGE_PRESENT | _PAGE_NO_CACHE + MTSPR_CPU6(SPRN_MD_RPN, r10, r11) /* Update TLB entry */ + + li r11, RPN_PATTERN + mtspr SPRN_DAR, r11 /* Tag DAR */ + EXCEPTION_EPILOG_0 + rfi + . = 0x1200 DataStoreTLBMiss: - mtspr SPRN_SPRG_SCRATCH2, r3 EXCEPTION_PROLOG_0 - mfcr r3 + mfcr r10 /* If we are faulting a kernel address, we have to use the * kernel page tables. */ - mfspr r10, SPRN_MD_EPN - IS_KERNEL(r11, r10) + mfspr r11, SPRN_MD_EPN + rlwinm r11, r11, 16, 0xfff8 +#ifndef CONFIG_PIN_TLB_IMMR + cmpli cr0, r11, VIRT_IMMR_BASE@h +#endif + cmpli cr7, r11, PAGE_OFFSET@h +#ifndef CONFIG_PIN_TLB_IMMR +_ENTRY(DTLBMiss_jmp) + beq- DTLBMissIMMR +#endif + bge- cr7, 4f + mfspr r11, SPRN_M_TW /* Get level 1 table */ - BRANCH_UNLESS_KERNEL(3f) - lis r11, (swapper_pg_dir-PAGE_OFFSET)@ha 3: + mtcr r10 +#ifdef CONFIG_8xx_CPU6 + mtspr SPRN_SPRG_SCRATCH2, r3 +#endif + mfspr r10, SPRN_MD_EPN /* Insert level 1 index */ rlwimi r11, r10, 32 - ((PAGE_SHIFT - 2) << 1), (PAGE_SHIFT - 2) << 1, 29 lwz r11, (swapper_pg_dir-PAGE_OFFSET)@l(r11) /* Get the level 1 entry */ - mtcr r11 - bt- 28,DTLBMiss8M /* bit 28 = Large page (8M) */ - mtcr r3 /* We have a pte table, so load fetch the pte from the table. */ @@ -452,29 +482,30 @@ DataStoreTLBMiss: MTSPR_CPU6(SPRN_MD_RPN, r10, r3) /* Update TLB entry */ /* Restore registers */ +#ifdef CONFIG_8xx_CPU6 mfspr r3, SPRN_SPRG_SCRATCH2 +#endif mtspr SPRN_DAR, r11 /* Tag DAR */ EXCEPTION_EPILOG_0 rfi -DTLBMiss8M: - mtcr r3 - ori r11, r11, MD_SVALID - MTSPR_CPU6(SPRN_MD_TWC, r11, r3) -#ifdef CONFIG_PPC_16K_PAGES - /* - * In 16k pages mode, each PGD entry defines a 64M block. - * Here we select the 8M page within the block. - */ - rlwimi r11, r10, 0, 0x03800000 -#endif - rlwinm r10, r11, 0, 0xff800000 +4: +_ENTRY(DTLBMiss_cmp) + cmpli cr0, r11, (PAGE_OFFSET + 0x1800000)@h + lis r11, (swapper_pg_dir-PAGE_OFFSET)@ha + bge- 3b + + mtcr r10 + /* Set 8M byte page and mark it valid */ + li r10, MD_PS8MEG | MD_SVALID + MTSPR_CPU6(SPRN_MD_TWC, r10, r11) + mfspr r10, SPRN_MD_EPN + rlwinm r10, r10, 0, 0x0f800000 /* 8xx supports max 256Mb RAM */ ori r10, r10, 0xf0 | MD_SPS16K | _PAGE_SHARED | _PAGE_DIRTY | \ _PAGE_PRESENT - MTSPR_CPU6(SPRN_MD_RPN, r10, r3) /* Update TLB entry */ + MTSPR_CPU6(SPRN_MD_RPN, r10, r11) /* Update TLB entry */ li r11, RPN_PATTERN - mfspr r3, SPRN_SPRG_SCRATCH2 mtspr SPRN_DAR, r11 /* Tag DAR */ EXCEPTION_EPILOG_0 rfi @@ -553,12 +584,14 @@ FixupDAR:/* Entry point for dcbx workaround. */ IS_KERNEL(r11, r10) mfspr r11, SPRN_M_TW /* Get level 1 table */ BRANCH_UNLESS_KERNEL(3f) + rlwinm r11, r10, 16, 0xfff8 +_ENTRY(FixupDAR_cmp) + cmpli cr7, r11, (PAGE_OFFSET + 0x1800000)@h + blt- cr7, 200f lis r11, (swapper_pg_dir-PAGE_OFFSET)@ha /* Insert level 1 index */ 3: rlwimi r11, r10, 32 - ((PAGE_SHIFT - 2) << 1), (PAGE_SHIFT - 2) << 1, 29 lwz r11, (swapper_pg_dir-PAGE_OFFSET)@l(r11) /* Get the level 1 entry */ - mtcr r11 - bt 28,200f /* bit 28 = Large page (8M) */ rlwinm r11, r11,0,0,19 /* Extract page descriptor page address */ /* Insert level 2 index */ rlwimi r11, r10, 32 - (PAGE_SHIFT - 2), 32 - PAGE_SHIFT, 29 @@ -584,8 +617,8 @@ FixupDAR:/* Entry point for dcbx workaround. */ 141: mfspr r10,SPRN_SPRG_SCRATCH2 b DARFixed /* Nope, go back to normal TLB processing */ - /* concat physical page address(r11) and page offset(r10) */ -200: rlwimi r11, r10, 0, 32 - (PAGE_SHIFT << 1), 31 + /* create physical page address from effective address */ +200: tophys(r11, r10) b 201b 144: mfspr r10, SPRN_DSISR @@ -763,10 +796,18 @@ start_here: * virtual to physical. Also, set the cache mode since that is defined * by TLB entries and perform any additional mapping (like of the IMMR). * If configured to pin some TLBs, we pin the first 8 Mbytes of kernel, - * 24 Mbytes of data, and the 8M IMMR space. Anything not covered by + * 24 Mbytes of data, and the 512k IMMR space. Anything not covered by * these mappings is mapped by page tables. */ initial_mmu: + li r8, 0 + mtspr SPRN_MI_CTR, r8 /* remove PINNED ITLB entries */ + lis r10, MD_RESETVAL@h +#ifndef CONFIG_8xx_COPYBACK + oris r10, r10, MD_WTDEF@h +#endif + mtspr SPRN_MD_CTR, r10 /* remove PINNED DTLB entries */ + tlbia /* Invalidate all TLB entries */ /* Always pin the first 8 MB ITLB to prevent ITLB misses while mucking around with SRR0/SRR1 in asm @@ -777,34 +818,20 @@ initial_mmu: mtspr SPRN_MI_CTR, r8 /* Set instruction MMU control */ #ifdef CONFIG_PIN_TLB - lis r10, (MD_RSV4I | MD_RESETVAL)@h - ori r10, r10, 0x1c00 - mr r8, r10 -#else - lis r10, MD_RESETVAL@h -#endif -#ifndef CONFIG_8xx_COPYBACK - oris r10, r10, MD_WTDEF@h -#endif + oris r10, r10, MD_RSV4I@h mtspr SPRN_MD_CTR, r10 /* Set data TLB control */ +#endif - /* Now map the lower 8 Meg into the TLBs. For this quick hack, - * we can load the instruction and data TLB registers with the - * same values. - */ + /* Now map the lower 8 Meg into the ITLB. */ lis r8, KERNELBASE@h /* Create vaddr for TLB */ ori r8, r8, MI_EVALID /* Mark it valid */ mtspr SPRN_MI_EPN, r8 - mtspr SPRN_MD_EPN, r8 li r8, MI_PS8MEG | (2 << 5) /* Set 8M byte page, APG 2 */ ori r8, r8, MI_SVALID /* Make it valid */ mtspr SPRN_MI_TWC, r8 - li r8, MI_PS8MEG /* Set 8M byte page, APG 0 */ - ori r8, r8, MI_SVALID /* Make it valid */ - mtspr SPRN_MD_TWC, r8 li r8, MI_BOOTINIT /* Create RPN for address 0 */ mtspr SPRN_MI_RPN, r8 /* Store TLB entry */ - mtspr SPRN_MD_RPN, r8 + lis r8, MI_APG_INIT@h /* Set protection modes */ ori r8, r8, MI_APG_INIT@l mtspr SPRN_MI_AP, r8 @@ -812,51 +839,25 @@ initial_mmu: ori r8, r8, MD_APG_INIT@l mtspr SPRN_MD_AP, r8 - /* Map another 8 MByte at the IMMR to get the processor + /* Map a 512k page for the IMMR to get the processor * internal registers (among other things). */ -#ifdef CONFIG_PIN_TLB - addi r10, r10, 0x0100 +#ifdef CONFIG_PIN_TLB_IMMR + ori r10, r10, 0x1c00 mtspr SPRN_MD_CTR, r10 -#endif + mfspr r9, 638 /* Get current IMMR */ - andis. r9, r9, 0xff80 /* Get 8Mbyte boundary */ + andis. r9, r9, 0xfff8 /* Get 512 kbytes boundary */ - mr r8, r9 /* Create vaddr for TLB */ + lis r8, VIRT_IMMR_BASE@h /* Create vaddr for TLB */ ori r8, r8, MD_EVALID /* Mark it valid */ mtspr SPRN_MD_EPN, r8 - li r8, MD_PS8MEG /* Set 8M byte page */ + li r8, MD_PS512K | MD_GUARDED /* Set 512k byte page */ ori r8, r8, MD_SVALID /* Make it valid */ mtspr SPRN_MD_TWC, r8 mr r8, r9 /* Create paddr for TLB */ ori r8, r8, MI_BOOTINIT|0x2 /* Inhibit cache -- Cort */ mtspr SPRN_MD_RPN, r8 - -#ifdef CONFIG_PIN_TLB - /* Map two more 8M kernel data pages. - */ - addi r10, r10, 0x0100 - mtspr SPRN_MD_CTR, r10 - - lis r8, KERNELBASE@h /* Create vaddr for TLB */ - addis r8, r8, 0x0080 /* Add 8M */ - ori r8, r8, MI_EVALID /* Mark it valid */ - mtspr SPRN_MD_EPN, r8 - li r9, MI_PS8MEG /* Set 8M byte page */ - ori r9, r9, MI_SVALID /* Make it valid */ - mtspr SPRN_MD_TWC, r9 - li r11, MI_BOOTINIT /* Create RPN for address 0 */ - addis r11, r11, 0x0080 /* Add 8M */ - mtspr SPRN_MD_RPN, r11 - - addi r10, r10, 0x0100 - mtspr SPRN_MD_CTR, r10 - - addis r8, r8, 0x0080 /* Add 8M */ - mtspr SPRN_MD_EPN, r8 - mtspr SPRN_MD_TWC, r9 - addis r11, r11, 0x0080 /* Add 8M */ - mtspr SPRN_MD_RPN, r11 #endif /* Since the cache is enabled according to the information we diff --git a/arch/powerpc/kernel/idle_power7.S b/arch/powerpc/kernel/idle_book3s.S index 470ceebd2d23..335eb6cedae5 100644 --- a/arch/powerpc/kernel/idle_power7.S +++ b/arch/powerpc/kernel/idle_book3s.S @@ -1,5 +1,6 @@ /* - * This file contains the power_save function for Power7 CPUs. + * This file contains idle entry/exit functions for POWER7, + * POWER8 and POWER9 CPUs. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -20,6 +21,7 @@ #include <asm/opal.h> #include <asm/cpuidle.h> #include <asm/book3s/64/mmu-hash.h> +#include <asm/mmu.h> #undef DEBUG @@ -36,6 +38,11 @@ #define _AMOR GPR9 #define _WORT GPR10 #define _WORC GPR11 +#define _PTCR GPR12 + +#define PSSCR_HV_TEMPLATE PSSCR_ESL | PSSCR_EC | \ + PSSCR_PSLL_MASK | PSSCR_TR_MASK | \ + PSSCR_MTL_MASK /* Idle state entry routines */ @@ -52,6 +59,45 @@ .text /* + * Used by threads before entering deep idle states. Saves SPRs + * in interrupt stack frame + */ +save_sprs_to_stack: + /* + * Note all register i.e per-core, per-subcore or per-thread is saved + * here since any thread in the core might wake up first + */ +BEGIN_FTR_SECTION + mfspr r3,SPRN_PTCR + std r3,_PTCR(r1) + /* + * Note - SDR1 is dropped in Power ISA v3. Hence not restoring + * SDR1 here + */ +FTR_SECTION_ELSE + mfspr r3,SPRN_SDR1 + std r3,_SDR1(r1) +ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_300) + mfspr r3,SPRN_RPR + std r3,_RPR(r1) + mfspr r3,SPRN_SPURR + std r3,_SPURR(r1) + mfspr r3,SPRN_PURR + std r3,_PURR(r1) + mfspr r3,SPRN_TSCR + std r3,_TSCR(r1) + mfspr r3,SPRN_DSCR + std r3,_DSCR(r1) + mfspr r3,SPRN_AMOR + std r3,_AMOR(r1) + mfspr r3,SPRN_WORT + std r3,_WORT(r1) + mfspr r3,SPRN_WORC + std r3,_WORC(r1) + + blr + +/* * Used by threads when the lock bit of core_idle_state is set. * Threads will spin in HMT_LOW until the lock bit is cleared. * r14 - pointer to core_idle_state @@ -69,13 +115,16 @@ core_idle_lock_held: /* * Pass requested state in r3: - * r3 - PNV_THREAD_NAP/SLEEP/WINKLE + * r3 - PNV_THREAD_NAP/SLEEP/WINKLE in POWER8 + * - Requested STOP state in POWER9 * * To check IRQ_HAPPENED in r4 * 0 - don't check * 1 - check + * + * Address to 'rfid' to in r5 */ -_GLOBAL(power7_powersave_common) +_GLOBAL(pnv_powersave_common) /* Use r3 to pass state nap/sleep/winkle */ /* NAP is a state loss, we create a regs frame on the * stack, fill it up with the state we care about and @@ -126,28 +175,28 @@ _GLOBAL(power7_powersave_common) std r9,_MSR(r1) std r1,PACAR1(r13) +#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE + /* Tell KVM we're entering idle */ + li r4,KVM_HWTHREAD_IN_IDLE + stb r4,HSTATE_HWTHREAD_STATE(r13) +#endif + /* * Go to real mode to do the nap, as required by the architecture. * Also, we need to be in real mode before setting hwthread_state, * because as soon as we do that, another thread can switch * the MMU context to the guest. */ - LOAD_REG_IMMEDIATE(r5, MSR_IDLE) + LOAD_REG_IMMEDIATE(r7, MSR_IDLE) li r6, MSR_RI andc r6, r9, r6 - LOAD_REG_ADDR(r7, power7_enter_nap_mode) mtmsrd r6, 1 /* clear RI before setting SRR0/1 */ - mtspr SPRN_SRR0, r7 - mtspr SPRN_SRR1, r5 + mtspr SPRN_SRR0, r5 + mtspr SPRN_SRR1, r7 rfid - .globl power7_enter_nap_mode -power7_enter_nap_mode: -#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE - /* Tell KVM we're napping */ - li r4,KVM_HWTHREAD_IN_NAP - stb r4,HSTATE_HWTHREAD_STATE(r13) -#endif + .globl pnv_enter_arch207_idle_mode +pnv_enter_arch207_idle_mode: stb r3,PACA_THREAD_IDLE_STATE(r13) cmpwi cr3,r3,PNV_THREAD_SLEEP bge cr3,2f @@ -196,8 +245,7 @@ fastsleep_workaround_at_entry: /* Fast sleep workaround */ li r3,1 li r4,1 - li r0,OPAL_CONFIG_CPU_IDLE_STATE - bl opal_call_realmode + bl opal_rm_config_cpu_idle_state /* Clear Lock bit */ li r0,0 @@ -206,30 +254,45 @@ fastsleep_workaround_at_entry: b common_enter enter_winkle: - /* - * Note all register i.e per-core, per-subcore or per-thread is saved - * here since any thread in the core might wake up first - */ - mfspr r3,SPRN_SDR1 - std r3,_SDR1(r1) - mfspr r3,SPRN_RPR - std r3,_RPR(r1) - mfspr r3,SPRN_SPURR - std r3,_SPURR(r1) - mfspr r3,SPRN_PURR - std r3,_PURR(r1) - mfspr r3,SPRN_TSCR - std r3,_TSCR(r1) - mfspr r3,SPRN_DSCR - std r3,_DSCR(r1) - mfspr r3,SPRN_AMOR - std r3,_AMOR(r1) - mfspr r3,SPRN_WORT - std r3,_WORT(r1) - mfspr r3,SPRN_WORC - std r3,_WORC(r1) + bl save_sprs_to_stack + IDLE_STATE_ENTER_SEQ(PPC_WINKLE) +/* + * r3 - requested stop state + */ +power_enter_stop: +/* + * Check if the requested state is a deep idle state. + */ + LOAD_REG_ADDRBASE(r5,pnv_first_deep_stop_state) + ld r4,ADDROFF(pnv_first_deep_stop_state)(r5) + cmpd r3,r4 + bge 2f + IDLE_STATE_ENTER_SEQ(PPC_STOP) +2: +/* + * Entering deep idle state. + * Clear thread bit in PACA_CORE_IDLE_STATE, save SPRs to + * stack and enter stop + */ + lbz r7,PACA_THREAD_MASK(r13) + ld r14,PACA_CORE_IDLE_STATE_PTR(r13) + +lwarx_loop_stop: + lwarx r15,0,r14 + andi. r9,r15,PNV_CORE_IDLE_LOCK_BIT + bnel core_idle_lock_held + andc r15,r15,r7 /* Clear thread bit */ + + stwcx. r15,0,r14 + bne- lwarx_loop_stop + isync + + bl save_sprs_to_stack + + IDLE_STATE_ENTER_SEQ(PPC_STOP) + _GLOBAL(power7_idle) /* Now check if user or arch enabled NAP mode */ LOAD_REG_ADDRBASE(r3,powersave_nap) @@ -242,19 +305,22 @@ _GLOBAL(power7_idle) _GLOBAL(power7_nap) mr r4,r3 li r3,PNV_THREAD_NAP - b power7_powersave_common + LOAD_REG_ADDR(r5, pnv_enter_arch207_idle_mode) + b pnv_powersave_common /* No return */ _GLOBAL(power7_sleep) li r3,PNV_THREAD_SLEEP li r4,1 - b power7_powersave_common + LOAD_REG_ADDR(r5, pnv_enter_arch207_idle_mode) + b pnv_powersave_common /* No return */ _GLOBAL(power7_winkle) - li r3,3 + li r3,PNV_THREAD_WINKLE li r4,1 - b power7_powersave_common + LOAD_REG_ADDR(r5, pnv_enter_arch207_idle_mode) + b pnv_powersave_common /* No return */ #define CHECK_HMI_INTERRUPT \ @@ -270,25 +336,104 @@ ALT_FTR_SECTION_END_NESTED_IFSET(CPU_FTR_ARCH_207S, 66); \ ld r2,PACATOC(r13); \ ld r1,PACAR1(r13); \ std r3,ORIG_GPR3(r1); /* Save original r3 */ \ - li r0,OPAL_HANDLE_HMI; /* Pass opal token argument*/ \ - bl opal_call_realmode; \ + bl opal_rm_handle_hmi; \ ld r3,ORIG_GPR3(r1); /* Restore original r3 */ \ 20: nop; -_GLOBAL(power7_wakeup_tb_loss) +/* + * r3 - requested stop state + */ +_GLOBAL(power9_idle_stop) + LOAD_REG_IMMEDIATE(r4, PSSCR_HV_TEMPLATE) + or r4,r4,r3 + mtspr SPRN_PSSCR, r4 + li r4, 1 + LOAD_REG_ADDR(r5,power_enter_stop) + b pnv_powersave_common + /* No return */ +/* + * Called from reset vector. Check whether we have woken up with + * hypervisor state loss. If yes, restore hypervisor state and return + * back to reset vector. + * + * r13 - Contents of HSPRG0 + * cr3 - set to gt if waking up with partial/complete hypervisor state loss + */ +_GLOBAL(pnv_restore_hyp_resource) ld r2,PACATOC(r13); +BEGIN_FTR_SECTION + /* + * POWER ISA 3. Use PSSCR to determine if we + * are waking up from deep idle state + */ + LOAD_REG_ADDRBASE(r5,pnv_first_deep_stop_state) + ld r4,ADDROFF(pnv_first_deep_stop_state)(r5) + + mfspr r5,SPRN_PSSCR + /* + * 0-3 bits correspond to Power-Saving Level Status + * which indicates the idle state we are waking up from + */ + rldicl r5,r5,4,60 + cmpd cr4,r5,r4 + bge cr4,pnv_wakeup_tb_loss + /* + * Waking up without hypervisor state loss. Return to + * reset vector + */ + blr + +END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) + + /* + * POWER ISA 2.07 or less. + * Check if last bit of HSPGR0 is set. This indicates whether we are + * waking up from winkle. + */ + clrldi r5,r13,63 + clrrdi r13,r13,1 + cmpwi cr4,r5,1 + mtspr SPRN_HSPRG0,r13 + + lbz r0,PACA_THREAD_IDLE_STATE(r13) + cmpwi cr2,r0,PNV_THREAD_NAP + bgt cr2,pnv_wakeup_tb_loss /* Either sleep or Winkle */ + + /* + * We fall through here if PACA_THREAD_IDLE_STATE shows we are waking + * up from nap. At this stage CR3 shouldn't contains 'gt' since that + * indicates we are waking with hypervisor state loss from nap. + */ + bgt cr3,. + + blr /* Return back to System Reset vector from where + pnv_restore_hyp_resource was invoked */ + +/* + * Called if waking up from idle state which can cause either partial or + * complete hyp state loss. + * In POWER8, called if waking up from fastsleep or winkle + * In POWER9, called if waking up from stop state >= pnv_first_deep_stop_state + * + * r13 - PACA + * cr3 - gt if waking up with partial/complete hypervisor state loss + * cr4 - eq if waking up from complete hypervisor state loss. + */ +_GLOBAL(pnv_wakeup_tb_loss) ld r1,PACAR1(r13) /* * Before entering any idle state, the NVGPRs are saved in the stack * and they are restored before switching to the process context. Hence * until they are restored, they are free to be used. * - * Save SRR1 in a NVGPR as it might be clobbered in opal_call_realmode - * (called in CHECK_HMI_INTERRUPT). SRR1 is required to determine the - * wakeup reason if we branch to kvm_start_guest. + * Save SRR1 and LR in NVGPRs as they might be clobbered in + * opal_call() (called in CHECK_HMI_INTERRUPT). SRR1 is required + * to determine the wakeup reason if we branch to kvm_start_guest. LR + * is required to return back to reset vector after hypervisor state + * restore is complete. */ - + mflr r17 mfspr r16,SPRN_SRR1 BEGIN_FTR_SECTION CHECK_HMI_INTERRUPT @@ -310,35 +455,35 @@ lwarx_loop2: bnel core_idle_lock_held cmpwi cr2,r15,0 - lbz r4,PACA_SUBCORE_SIBLING_MASK(r13) - and r4,r4,r15 - cmpwi cr1,r4,0 /* Check if first in subcore */ /* * At this stage - * cr1 - 0b0100 if first thread to wakeup in subcore - * cr2 - 0b0100 if first thread to wakeup in core - * cr3- 0b0010 if waking up from sleep or winkle - * cr4 - 0b0100 if waking up from winkle + * cr2 - eq if first thread to wakeup in core + * cr3- gt if waking up with partial/complete hypervisor state loss + * cr4 - eq if waking up from complete hypervisor state loss. */ - or r15,r15,r7 /* Set thread bit */ - - beq cr1,first_thread_in_subcore - - /* Not first thread in subcore to wake up */ - stwcx. r15,0,r14 - bne- lwarx_loop2 - isync - b common_exit - -first_thread_in_subcore: - /* First thread in subcore to wakeup */ ori r15,r15,PNV_CORE_IDLE_LOCK_BIT stwcx. r15,0,r14 bne- lwarx_loop2 isync +BEGIN_FTR_SECTION + lbz r4,PACA_SUBCORE_SIBLING_MASK(r13) + and r4,r4,r15 + cmpwi r4,0 /* Check if first in subcore */ + + or r15,r15,r7 /* Set thread bit */ + beq first_thread_in_subcore +END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300) + + or r15,r15,r7 /* Set thread bit */ + beq cr2,first_thread_in_core + + /* Not first thread in core or subcore to wake up */ + b clear_lock + +first_thread_in_subcore: /* * If waking up from sleep, subcore state is not lost. Hence * skip subcore state restore @@ -348,6 +493,7 @@ first_thread_in_subcore: /* Restore per-subcore state */ ld r4,_SDR1(r1) mtspr SPRN_SDR1,r4 + ld r4,_RPR(r1) mtspr SPRN_RPR,r4 ld r4,_AMOR(r1) @@ -363,32 +509,44 @@ subcore_state_restored: first_thread_in_core: /* - * First thread in the core waking up from fastsleep. It needs to + * First thread in the core waking up from any state which can cause + * partial or complete hypervisor state loss. It needs to * call the fastsleep workaround code if the platform requires it. * Call it unconditionally here. The below branch instruction will - * be patched out when the idle states are discovered if platform - * does not require workaround. + * be patched out if the platform does not have fastsleep or does not + * require the workaround. Patching will be performed during the + * discovery of idle-states. */ .global pnv_fastsleep_workaround_at_exit pnv_fastsleep_workaround_at_exit: b fastsleep_workaround_at_exit timebase_resync: - /* Do timebase resync if we are waking up from sleep. Use cr3 value - * set in exceptions-64s.S */ + /* + * Use cr3 which indicates that we are waking up with atleast partial + * hypervisor state loss to determine if TIMEBASE RESYNC is needed. + */ ble cr3,clear_lock /* Time base re-sync */ - li r0,OPAL_RESYNC_TIMEBASE - bl opal_call_realmode; - /* TODO: Check r3 for failure */ - + bl opal_rm_resync_timebase; /* * If waking up from sleep, per core state is not lost, skip to * clear_lock. */ bne cr4,clear_lock - /* Restore per core state */ + /* + * First thread in the core to wake up and its waking up with + * complete hypervisor state loss. Restore per core hypervisor + * state. + */ +BEGIN_FTR_SECTION + ld r4,_PTCR(r1) + mtspr SPRN_PTCR,r4 + ld r4,_RPR(r1) + mtspr SPRN_RPR,r4 +END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) + ld r4,_TSCR(r1) mtspr SPRN_TSCR,r4 ld r4,_WORC(r1) @@ -410,9 +568,9 @@ common_exit: /* Waking up from winkle */ - /* Restore per thread state */ - bl __restore_cpu_power8 - +BEGIN_MMU_FTR_SECTION + b no_segments +END_MMU_FTR_SECTION_IFSET(MMU_FTR_RADIX) /* Restore SLB from PACA */ ld r8,PACA_SLBSHADOWPTR(r13) @@ -426,6 +584,9 @@ common_exit: slbmte r6,r5 1: addi r8,r8,16 .endr +no_segments: + + /* Restore per thread state */ ld r4,_SPURR(r1) mtspr SPRN_SPURR,r4 @@ -436,48 +597,34 @@ common_exit: ld r4,_WORT(r1) mtspr SPRN_WORT,r4 -hypervisor_state_restored: + /* Call cur_cpu_spec->cpu_restore() */ + LOAD_REG_ADDR(r4, cur_cpu_spec) + ld r4,0(r4) + ld r12,CPU_SPEC_RESTORE(r4) +#ifdef PPC64_ELF_ABI_v1 + ld r12,0(r12) +#endif + mtctr r12 + bctrl - li r5,PNV_THREAD_RUNNING - stb r5,PACA_THREAD_IDLE_STATE(r13) +hypervisor_state_restored: mtspr SPRN_SRR1,r16 -#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE - li r0,KVM_HWTHREAD_IN_KERNEL - stb r0,HSTATE_HWTHREAD_STATE(r13) - /* Order setting hwthread_state vs. testing hwthread_req */ - sync - lbz r0,HSTATE_HWTHREAD_REQ(r13) - cmpwi r0,0 - beq 6f - b kvm_start_guest -6: -#endif - - REST_NVGPRS(r1) - REST_GPR(2, r1) - ld r3,_CCR(r1) - ld r4,_MSR(r1) - ld r5,_NIP(r1) - addi r1,r1,INT_FRAME_SIZE - mtcr r3 - mfspr r3,SPRN_SRR1 /* Return SRR1 */ - mtspr SPRN_SRR1,r4 - mtspr SPRN_SRR0,r5 - rfid + mtlr r17 + blr /* Return back to System Reset vector from where + pnv_restore_hyp_resource was invoked */ fastsleep_workaround_at_exit: li r3,1 li r4,0 - li r0,OPAL_CONFIG_CPU_IDLE_STATE - bl opal_call_realmode + bl opal_rm_config_cpu_idle_state b timebase_resync /* * R3 here contains the value that will be returned to the caller * of power7_nap. */ -_GLOBAL(power7_wakeup_loss) +_GLOBAL(pnv_wakeup_loss) ld r1,PACAR1(r13) BEGIN_FTR_SECTION CHECK_HMI_INTERRUPT @@ -497,10 +644,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE) * R3 here contains the value that will be returned to the caller * of power7_nap. */ -_GLOBAL(power7_wakeup_noloss) +_GLOBAL(pnv_wakeup_noloss) lbz r0,PACA_NAPSTATELOST(r13) cmpwi r0,0 - bne power7_wakeup_loss + bne pnv_wakeup_loss BEGIN_FTR_SECTION CHECK_HMI_INTERRUPT END_FTR_SECTION_IFSET(CPU_FTR_HVMODE) diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 3cb46a3b1de7..ac910d9982df 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -250,7 +250,7 @@ notrace void arch_local_irq_restore(unsigned long en) if (WARN_ON(mfmsr() & MSR_EE)) __hard_irq_disable(); } -#endif /* CONFIG_TRACE_IRQFLAG */ +#endif /* CONFIG_TRACE_IRQFLAGS */ set_soft_enabled(0); @@ -342,6 +342,21 @@ bool prep_irq_for_idle(void) return true; } +/* + * Force a replay of the external interrupt handler on this CPU. + */ +void force_external_irq_replay(void) +{ + /* + * This must only be called with interrupts soft-disabled, + * the replay will happen when re-enabling. + */ + WARN_ON(!arch_irqs_disabled()); + + /* Indicate in the PACA that we have an interrupt to replay */ + local_paca->irq_happened |= PACA_IRQ_EE; +} + #endif /* CONFIG_PPC64 */ int arch_show_interrupts(struct seq_file *p, int prec) diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index 7c053f281406..3ed8ec09b5c9 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -278,12 +278,11 @@ no_kprobe: * - When the probed function returns, this probe * causes the handlers to fire */ -static void __used kretprobe_trampoline_holder(void) -{ - asm volatile(".global kretprobe_trampoline\n" - "kretprobe_trampoline:\n" - "nop\n"); -} +asm(".global kretprobe_trampoline\n" + ".type kretprobe_trampoline, @function\n" + "kretprobe_trampoline:\n" + "nop\n" + ".size kretprobe_trampoline, .-kretprobe_trampoline\n"); /* * Called when the probe at kretprobe trampoline is hit @@ -506,13 +505,11 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) /* setup return addr to the jprobe handler routine */ regs->nip = arch_deref_entry_point(jp->entry); -#ifdef CONFIG_PPC64 -#if defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 regs->gpr[12] = (unsigned long)jp->entry; -#else +#elif defined(PPC64_ELF_ABI_v1) regs->gpr[2] = (unsigned long)(((func_descr_t *)jp->entry)->toc); #endif -#endif return 1; } diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c index b8c202d63ecb..4c780a342282 100644 --- a/arch/powerpc/kernel/machine_kexec_64.c +++ b/arch/powerpc/kernel/machine_kexec_64.c @@ -29,6 +29,7 @@ #include <asm/prom.h> #include <asm/smp.h> #include <asm/hw_breakpoint.h> +#include <asm/asm-prototypes.h> #ifdef CONFIG_PPC_BOOK3E int default_machine_kexec_prepare(struct kimage *image) @@ -54,7 +55,7 @@ int default_machine_kexec_prepare(struct kimage *image) const unsigned long *basep; const unsigned int *sizep; - if (!ppc_md.hpte_clear_all) + if (!mmu_hash_ops.hpte_clear_all) return -ENOENT; /* @@ -379,7 +380,12 @@ void default_machine_kexec(struct kimage *image) */ kexec_sequence(&kexec_stack, image->start, image, page_address(image->control_code_page), - ppc_md.hpte_clear_all); +#ifdef CONFIG_PPC_STD_MMU + mmu_hash_ops.hpte_clear_all +#else + NULL +#endif + ); /* NOTREACHED */ } diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 285ca8c6cc2e..d9c912b6e632 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -104,20 +104,6 @@ _GLOBAL(mulhdu) blr /* - * sub_reloc_offset(x) returns x - reloc_offset(). - */ -_GLOBAL(sub_reloc_offset) - mflr r0 - bl 1f -1: mflr r5 - lis r4,1b@ha - addi r4,r4,1b@l - subf r5,r4,r5 - subf r3,r5,r3 - mtlr r0 - blr - -/* * reloc_got2 runs through the .got2 section adding an offset * to each entry. */ diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S index f28754c497e5..cb195157b318 100644 --- a/arch/powerpc/kernel/misc_64.S +++ b/arch/powerpc/kernel/misc_64.S @@ -661,13 +661,13 @@ _GLOBAL(kexec_sequence) #ifndef CONFIG_PPC_BOOK3E /* clear out hardware hash page table and tlb */ -#if !defined(_CALL_ELF) || _CALL_ELF != 2 +#ifdef PPC64_ELF_ABI_v1 ld r12,0(r27) /* deref function descriptor */ #else mr r12,r27 #endif mtctr r12 - bctrl /* ppc_md.hpte_clear_all(void); */ + bctrl /* mmu_hash_ops.hpte_clear_all(void); */ #endif /* !CONFIG_PPC_BOOK3E */ /* diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c index 9ce9a25f58b5..183368e008cf 100644 --- a/arch/powerpc/kernel/module_64.c +++ b/arch/powerpc/kernel/module_64.c @@ -41,7 +41,7 @@ this, and makes other things simpler. Anton? --RR. */ -#if defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 /* An address is simply the address of the function. */ typedef unsigned long func_desc_t; @@ -132,7 +132,7 @@ static u32 ppc64_stub_insns[] = { /* Save current r2 value in magic place on the stack. */ 0xf8410000|R2_STACK_OFFSET, /* std r2,R2_STACK_OFFSET(r1) */ 0xe98b0020, /* ld r12,32(r11) */ -#if !defined(_CALL_ELF) || _CALL_ELF != 2 +#ifdef PPC64_ELF_ABI_v1 /* Set up new r2 from function descriptor */ 0xe84b0028, /* ld r2,40(r11) */ #endif @@ -494,9 +494,10 @@ static bool is_early_mcount_callsite(u32 *instruction) restore r2. */ static int restore_r2(u32 *instruction, struct module *me) { + if (is_early_mcount_callsite(instruction - 1)) + return 1; + if (*instruction != PPC_INST_NOP) { - if (is_early_mcount_callsite(instruction - 1)) - return 1; pr_err("%s: Expect noop after relocate, got %08x\n", me->name, *instruction); return 0; diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 0f7a60f1e9f6..f93942b4b6a6 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -41,11 +41,18 @@ #include <asm/ppc-pci.h> #include <asm/eeh.h> +/* hose_spinlock protects accesses to the the phb_bitmap. */ static DEFINE_SPINLOCK(hose_spinlock); LIST_HEAD(hose_list); -/* XXX kill that some day ... */ -static int global_phb_number; /* Global phb counter */ +/* For dynamic PHB numbering on get_phb_number(): max number of PHBs. */ +#define MAX_PHBS 0x10000 + +/* + * For dynamic PHB numbering: used/free PHBs tracking bitmap. + * Accesses to this bitmap should be protected by hose_spinlock. + */ +static DECLARE_BITMAP(phb_bitmap, MAX_PHBS); /* ISA Memory physical address */ resource_size_t isa_mem_base; @@ -64,6 +71,42 @@ struct dma_map_ops *get_pci_dma_ops(void) } EXPORT_SYMBOL(get_pci_dma_ops); +/* + * This function should run under locking protection, specifically + * hose_spinlock. + */ +static int get_phb_number(struct device_node *dn) +{ + int ret, phb_id = -1; + u64 prop; + + /* + * Try fixed PHB numbering first, by checking archs and reading + * the respective device-tree properties. Firstly, try powernv by + * reading "ibm,opal-phbid", only present in OPAL environment. + */ + ret = of_property_read_u64(dn, "ibm,opal-phbid", &prop); + if (ret) + ret = of_property_read_u32_index(dn, "reg", 1, (u32 *)&prop); + + if (!ret) + phb_id = (int)(prop & (MAX_PHBS - 1)); + + /* We need to be sure to not use the same PHB number twice. */ + if ((phb_id >= 0) && !test_and_set_bit(phb_id, phb_bitmap)) + return phb_id; + + /* + * If not pseries nor powernv, or if fixed PHB numbering tried to add + * the same PHB number twice, then fallback to dynamic PHB numbering. + */ + phb_id = find_first_zero_bit(phb_bitmap, MAX_PHBS); + BUG_ON(phb_id >= MAX_PHBS); + set_bit(phb_id, phb_bitmap); + + return phb_id; +} + struct pci_controller *pcibios_alloc_controller(struct device_node *dev) { struct pci_controller *phb; @@ -72,7 +115,7 @@ struct pci_controller *pcibios_alloc_controller(struct device_node *dev) if (phb == NULL) return NULL; spin_lock(&hose_spinlock); - phb->global_number = global_phb_number++; + phb->global_number = get_phb_number(dev); list_add_tail(&phb->list_node, &hose_list); spin_unlock(&hose_spinlock); phb->dn = dev; @@ -94,6 +137,11 @@ EXPORT_SYMBOL_GPL(pcibios_alloc_controller); void pcibios_free_controller(struct pci_controller *phb) { spin_lock(&hose_spinlock); + + /* Clear bit of phb_bitmap to allow reuse of this PHB number. */ + if (phb->global_number < MAX_PHBS) + clear_bit(phb->global_number, phb_bitmap); + list_del(&phb->list_node); spin_unlock(&hose_spinlock); @@ -124,6 +172,14 @@ resource_size_t pcibios_window_alignment(struct pci_bus *bus, return 1; } +void pcibios_setup_bridge(struct pci_bus *bus, unsigned long type) +{ + struct pci_controller *hose = pci_bus_to_host(bus); + + if (hose->controller_ops.setup_bridge) + hose->controller_ops.setup_bridge(bus, type); +} + void pcibios_reset_secondary_bus(struct pci_dev *dev) { struct pci_controller *phb = pci_bus_to_host(dev->bus); @@ -1362,8 +1418,10 @@ void __init pcibios_resource_survey(void) /* Allocate and assign resources */ list_for_each_entry(b, &pci_root_buses, node) pcibios_allocate_bus_resources(b); - pcibios_allocate_resources(0); - pcibios_allocate_resources(1); + if (!pci_has_flag(PCI_REASSIGN_ALL_RSRC)) { + pcibios_allocate_resources(0); + pcibios_allocate_resources(1); + } /* Before we start assigning unassigned resource, we try to reserve * the low IO area and the VGA memory area if they intersect the @@ -1436,8 +1494,12 @@ void pcibios_finish_adding_to_bus(struct pci_bus *bus) /* Allocate bus and devices resources */ pcibios_allocate_bus_resources(bus); pcibios_claim_one_bus(bus); - if (!pci_has_flag(PCI_PROBE_ONLY)) - pci_assign_unassigned_bus_resources(bus); + if (!pci_has_flag(PCI_PROBE_ONLY)) { + if (bus->self) + pci_assign_unassigned_bridge_resources(bus->self); + else + pci_assign_unassigned_bus_resources(bus); + } /* Fixup EEH */ eeh_add_device_tree_late(bus); @@ -1485,9 +1547,9 @@ static void pcibios_setup_phb_resources(struct pci_controller *hose, res = &hose->io_resource; if (!res->flags) { - pr_info("PCI: I/O resource not set for host" - " bridge %s (domain %d)\n", - hose->dn->full_name, hose->global_number); + pr_debug("PCI: I/O resource not set for host" + " bridge %s (domain %d)\n", + hose->dn->full_name, hose->global_number); } else { offset = pcibios_io_space_offset(hose); diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index a5ae49a2dcc4..ed5e9ff61a68 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -81,7 +81,7 @@ int pcibios_unmap_io_space(struct pci_bus *bus) /* If this is not a PHB, we only flush the hash table over * the area mapped by this bridge. We don't play with the PTE - * mappings since we might have to deal with sub-page alignemnts + * mappings since we might have to deal with sub-page alignments * so flushing the hash table is the only sane way to make sure * that no hash entries are covering that removed bridge area * while still allowing other busses overlapping those pages diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c index ecdccce78719..592693437070 100644 --- a/arch/powerpc/kernel/pci_dn.c +++ b/arch/powerpc/kernel/pci_dn.c @@ -31,6 +31,7 @@ #include <asm/pci-bridge.h> #include <asm/ppc-pci.h> #include <asm/firmware.h> +#include <asm/eeh.h> /* * The function is used to find the firmware data of one @@ -181,7 +182,6 @@ struct pci_dn *add_dev_pci_data(struct pci_dev *pdev) { #ifdef CONFIG_PCI_IOV struct pci_dn *parent, *pdn; - struct eeh_dev *edev; int i; /* Only support IOV for now */ @@ -199,6 +199,8 @@ struct pci_dn *add_dev_pci_data(struct pci_dev *pdev) return NULL; for (i = 0; i < pci_sriov_get_totalvfs(pdev); i++) { + struct eeh_dev *edev __maybe_unused; + pdn = add_one_dev_pci_data(parent, NULL, i, pci_iov_virtfn_bus(pdev, i), pci_iov_virtfn_devfn(pdev, i)); @@ -208,11 +210,12 @@ struct pci_dn *add_dev_pci_data(struct pci_dev *pdev) return NULL; } +#ifdef CONFIG_EEH /* Create the EEH device for the VF */ - eeh_dev_init(pdn, pci_bus_to_host(pdev->bus)); - edev = pdn_to_eeh_dev(pdn); + edev = eeh_dev_init(pdn); BUG_ON(!edev); edev->physfn = pdev; +#endif /* CONFIG_EEH */ } #endif /* CONFIG_PCI_IOV */ @@ -224,7 +227,6 @@ void remove_dev_pci_data(struct pci_dev *pdev) #ifdef CONFIG_PCI_IOV struct pci_dn *parent; struct pci_dn *pdn, *tmp; - struct eeh_dev *edev; int i; /* @@ -260,18 +262,22 @@ void remove_dev_pci_data(struct pci_dev *pdev) * a batch mode. */ for (i = 0; i < pci_sriov_get_totalvfs(pdev); i++) { + struct eeh_dev *edev __maybe_unused; + list_for_each_entry_safe(pdn, tmp, &parent->child_list, list) { if (pdn->busno != pci_iov_virtfn_bus(pdev, i) || pdn->devfn != pci_iov_virtfn_devfn(pdev, i)) continue; +#ifdef CONFIG_EEH /* Release EEH device for the VF */ edev = pdn_to_eeh_dev(pdn); if (edev) { pdn->edev = NULL; kfree(edev); } +#endif /* CONFIG_EEH */ if (!list_empty(&pdn->list)) list_del(&pdn->list); @@ -289,8 +295,11 @@ struct pci_dn *pci_add_device_node_info(struct pci_controller *hose, const __be32 *regs; struct device_node *parent; struct pci_dn *pdn; +#ifdef CONFIG_EEH + struct eeh_dev *edev; +#endif - pdn = zalloc_maybe_bootmem(sizeof(*pdn), GFP_KERNEL); + pdn = kzalloc(sizeof(*pdn), GFP_KERNEL); if (pdn == NULL) return NULL; dn->data = pdn; @@ -319,6 +328,15 @@ struct pci_dn *pci_add_device_node_info(struct pci_controller *hose, /* Extended config space */ pdn->pci_ext_config_space = (type && of_read_number(type, 1) == 1); + /* Create EEH device */ +#ifdef CONFIG_EEH + edev = eeh_dev_init(pdn); + if (!edev) { + kfree(pdn); + return NULL; + } +#endif + /* Attach to parent node */ INIT_LIST_HEAD(&pdn->child_list); INIT_LIST_HEAD(&pdn->list); @@ -504,15 +522,19 @@ void pci_devs_phb_init_dynamic(struct pci_controller *phb) * pci device found underneath. This routine runs once, * early in the boot sequence. */ -void __init pci_devs_phb_init(void) +static int __init pci_devs_phb_init(void) { struct pci_controller *phb, *tmp; /* This must be done first so the device nodes have valid pci info! */ list_for_each_entry_safe(phb, tmp, &hose_list, list_node) pci_devs_phb_init_dynamic(phb); + + return 0; } +core_initcall(pci_devs_phb_init); + static void pci_dev_pdn_setup(struct pci_dev *pdev) { struct pci_dn *pdn; diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 0b93893424f5..a8cca88e972f 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -139,12 +139,16 @@ EXPORT_SYMBOL(__msr_check_and_clear); #ifdef CONFIG_PPC_FPU void __giveup_fpu(struct task_struct *tsk) { + unsigned long msr; + save_fpu(tsk); - tsk->thread.regs->msr &= ~MSR_FP; + msr = tsk->thread.regs->msr; + msr &= ~MSR_FP; #ifdef CONFIG_VSX if (cpu_has_feature(CPU_FTR_VSX)) - tsk->thread.regs->msr &= ~MSR_VSX; + msr &= ~MSR_VSX; #endif + tsk->thread.regs->msr = msr; } void giveup_fpu(struct task_struct *tsk) @@ -219,12 +223,16 @@ static int restore_fp(struct task_struct *tsk) { return 0; } static void __giveup_altivec(struct task_struct *tsk) { + unsigned long msr; + save_altivec(tsk); - tsk->thread.regs->msr &= ~MSR_VEC; + msr = tsk->thread.regs->msr; + msr &= ~MSR_VEC; #ifdef CONFIG_VSX if (cpu_has_feature(CPU_FTR_VSX)) - tsk->thread.regs->msr &= ~MSR_VSX; + msr &= ~MSR_VSX; #endif + tsk->thread.regs->msr = msr; } void giveup_altivec(struct task_struct *tsk) @@ -794,7 +802,7 @@ static void tm_reclaim_thread(struct thread_struct *thr, * this state. * We do this using the current MSR, rather tracking it in * some specific thread_struct bit, as it has the additional - * benifit of checking for a potential TM bad thing exception. + * benefit of checking for a potential TM bad thing exception. */ if (!MSR_TM_SUSPENDED(mfmsr())) return; @@ -1009,6 +1017,14 @@ static inline void save_sprs(struct thread_struct *t) */ t->tar = mfspr(SPRN_TAR); } + + if (cpu_has_feature(CPU_FTR_ARCH_300)) { + /* Conditionally save Load Monitor registers, if enabled */ + if (t->fscr & FSCR_LM) { + t->lmrr = mfspr(SPRN_LMRR); + t->lmser = mfspr(SPRN_LMSER); + } + } #endif } @@ -1023,18 +1039,11 @@ static inline void restore_sprs(struct thread_struct *old_thread, #ifdef CONFIG_PPC_BOOK3S_64 if (cpu_has_feature(CPU_FTR_DSCR)) { u64 dscr = get_paca()->dscr_default; - u64 fscr = old_thread->fscr & ~FSCR_DSCR; - - if (new_thread->dscr_inherit) { + if (new_thread->dscr_inherit) dscr = new_thread->dscr; - fscr |= FSCR_DSCR; - } if (old_thread->dscr != dscr) mtspr(SPRN_DSCR, dscr); - - if (old_thread->fscr != fscr) - mtspr(SPRN_FSCR, fscr); } if (cpu_has_feature(CPU_FTR_ARCH_207S)) { @@ -1045,9 +1054,22 @@ static inline void restore_sprs(struct thread_struct *old_thread, if (old_thread->ebbrr != new_thread->ebbrr) mtspr(SPRN_EBBRR, new_thread->ebbrr); + if (old_thread->fscr != new_thread->fscr) + mtspr(SPRN_FSCR, new_thread->fscr); + if (old_thread->tar != new_thread->tar) mtspr(SPRN_TAR, new_thread->tar); } + + if (cpu_has_feature(CPU_FTR_ARCH_300)) { + /* Conditionally restore Load Monitor registers, if enabled */ + if (new_thread->fscr & FSCR_LM) { + if (old_thread->lmrr != new_thread->lmrr) + mtspr(SPRN_LMRR, new_thread->lmrr); + if (old_thread->lmser != new_thread->lmser) + mtspr(SPRN_LMSER, new_thread->lmser); + } + } #endif } diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 946e34ffeae9..bae3db791150 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -56,6 +56,8 @@ #include <asm/opal.h> #include <asm/fadump.h> #include <asm/debug.h> +#include <asm/epapr_hcalls.h> +#include <asm/firmware.h> #include <mm/mmu_decl.h> @@ -645,6 +647,14 @@ static void __init early_reserve_mem(void) #endif } +static bool disable_radix; +static int __init parse_disable_radix(char *p) +{ + disable_radix = true; + return 0; +} +early_param("disable_radix", parse_disable_radix); + void __init early_init_devtree(void *params) { phys_addr_t limit; @@ -734,11 +744,26 @@ void __init early_init_devtree(void *params) */ spinning_secondaries = boot_cpu_count - 1; #endif + /* + * now fixup radix MMU mode based on kernel command line + */ + if (disable_radix) + cur_cpu_spec->mmu_features &= ~MMU_FTR_RADIX; #ifdef CONFIG_PPC_POWERNV /* Scan and build the list of machine check recoverable ranges */ of_scan_flat_dt(early_init_dt_scan_recoverable_ranges, NULL); #endif + epapr_paravirt_early_init(); + + /* Now try to figure out if we are running on LPAR and so on */ + pseries_probe_fw_features(); + +#ifdef CONFIG_PPC_PS3 + /* Identify PS3 firmware */ + if (of_flat_dt_is_compatible(of_get_flat_dt_root(), "sony,ps3")) + powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE; +#endif DBG(" <- early_init_devtree()\n"); } diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c index fb2fb3ea85e5..c82eed97bd22 100644 --- a/arch/powerpc/kernel/rtas-proc.c +++ b/arch/powerpc/kernel/rtas-proc.c @@ -698,7 +698,7 @@ static void check_location(struct seq_file *m, const char *c) /* * Format: * ${LETTER}${NUMBER}[[-/]${LETTER}${NUMBER} [ ... ] ] - * the '.' may be an abbrevation + * the '.' may be an abbreviation */ static void check_location_string(struct seq_file *m, const char *c) { diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 28736ff27fea..6a3e5de544ce 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -685,7 +685,7 @@ int rtas_set_indicator_fast(int indicator, int index, int new_value) return rc; } -void rtas_restart(char *cmd) +void __noreturn rtas_restart(char *cmd) { if (rtas_flash_term_hook) rtas_flash_term_hook(SYS_RESTART); @@ -704,7 +704,7 @@ void rtas_power_off(void) for (;;); } -void rtas_halt(void) +void __noreturn rtas_halt(void) { if (rtas_flash_term_hook) rtas_flash_term_hook(SYS_HALT); @@ -1070,7 +1070,7 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs) nret = be32_to_cpu(args.nret); token = be32_to_cpu(args.token); - if (nargs > ARRAY_SIZE(args.args) + if (nargs >= ARRAY_SIZE(args.args) || nret > ARRAY_SIZE(args.args) || nargs + nret > ARRAY_SIZE(args.args)) return -EINVAL; @@ -1174,7 +1174,7 @@ void __init rtas_initialize(void) * the stop-self token if any */ #ifdef CONFIG_PPC64 - if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR)) { + if (firmware_has_feature(FW_FEATURE_LPAR)) { rtas_region = min(ppc64_rma_size, RTAS_INSTANTIATE_MAX); ibm_suspend_me_token = rtas_token("ibm,suspend-me"); } diff --git a/arch/powerpc/kernel/rtasd.c b/arch/powerpc/kernel/rtasd.c index c638e2487a9c..a26a02006576 100644 --- a/arch/powerpc/kernel/rtasd.c +++ b/arch/powerpc/kernel/rtasd.c @@ -483,7 +483,7 @@ static void rtas_event_scan(struct work_struct *w) } #ifdef CONFIG_PPC64 -static void retreive_nvram_error_log(void) +static void retrieve_nvram_error_log(void) { unsigned int err_type ; int rc ; @@ -501,7 +501,7 @@ static void retreive_nvram_error_log(void) } } #else /* CONFIG_PPC64 */ -static void retreive_nvram_error_log(void) +static void retrieve_nvram_error_log(void) { } #endif /* CONFIG_PPC64 */ @@ -513,7 +513,7 @@ static void start_event_scan(void) (30000 / rtas_event_scan_rate)); /* Retrieve errors from nvram if any */ - retreive_nvram_error_log(); + retrieve_nvram_error_log(); schedule_delayed_work_on(cpumask_first(cpu_online_mask), &event_scan_work, event_scan_delay); @@ -526,10 +526,8 @@ void rtas_cancel_event_scan(void) } EXPORT_SYMBOL_GPL(rtas_cancel_event_scan); -static int __init rtas_init(void) +static int __init rtas_event_scan_init(void) { - struct proc_dir_entry *entry; - if (!machine_is(pseries) && !machine_is(chrp)) return 0; @@ -562,13 +560,27 @@ static int __init rtas_init(void) return -ENOMEM; } + start_event_scan(); + + return 0; +} +arch_initcall(rtas_event_scan_init); + +static int __init rtas_init(void) +{ + struct proc_dir_entry *entry; + + if (!machine_is(pseries) && !machine_is(chrp)) + return 0; + + if (!rtas_log_buf) + return -ENODEV; + entry = proc_create("powerpc/rtas/error_log", S_IRUSR, NULL, &proc_rtas_log_operations); if (!entry) printk(KERN_ERR "Failed to create error_log proc entry\n"); - start_event_scan(); - return 0; } __initcall(rtas_init); diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 8ca79b7503d8..714b4ba7ab86 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -35,6 +35,7 @@ #include <linux/percpu.h> #include <linux/memblock.h> #include <linux/of_platform.h> +#include <linux/hugetlb.h> #include <asm/io.h> #include <asm/paca.h> #include <asm/prom.h> @@ -61,6 +62,12 @@ #include <asm/cputhreads.h> #include <mm/mmu_decl.h> #include <asm/fadump.h> +#include <asm/udbg.h> +#include <asm/hugetlb.h> +#include <asm/livepatch.h> +#include <asm/mmu_context.h> + +#include "setup.h" #ifdef DEBUG #include <asm/udbg.h> @@ -494,7 +501,7 @@ void __init smp_setup_cpu_maps(void) * On pSeries LPAR, we need to know how many cpus * could possibly be added to this partition. */ - if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR) && + if (firmware_has_feature(FW_FEATURE_LPAR) && (dn = of_find_node_by_path("/rtas"))) { int num_addr_cell, num_size_cell, maxcpus; const __be32 *ireg; @@ -575,6 +582,7 @@ void probe_machine(void) { extern struct machdep_calls __machine_desc_start; extern struct machdep_calls __machine_desc_end; + unsigned int i; /* * Iterate all ppc_md structures until we find the proper @@ -582,6 +590,17 @@ void probe_machine(void) */ DBG("Probing machine type ...\n"); + /* + * Check ppc_md is empty, if not we have a bug, ie, we setup an + * entry before probe_machine() which will be overwritten + */ + for (i = 0; i < (sizeof(ppc_md) / sizeof(void *)); i++) { + if (((void **)&ppc_md)[i]) { + printk(KERN_ERR "Entry %d in ppc_md non empty before" + " machine probe !\n", i); + } + } + for (machine_id = &__machine_desc_start; machine_id < &__machine_desc_end; machine_id++) { @@ -676,6 +695,8 @@ static struct notifier_block ppc_panic_block = { void __init setup_panic(void) { + if (!ppc_md.panic) + return; atomic_notifier_chain_register(&panic_notifier_list, &ppc_panic_block); } @@ -744,3 +765,169 @@ void arch_setup_pdev_archdata(struct platform_device *pdev) pdev->dev.dma_mask = &pdev->archdata.dma_mask; set_dma_ops(&pdev->dev, &dma_direct_ops); } + +static __init void print_system_info(void) +{ + pr_info("-----------------------------------------------------\n"); +#ifdef CONFIG_PPC_STD_MMU_64 + pr_info("ppc64_pft_size = 0x%llx\n", ppc64_pft_size); +#endif +#ifdef CONFIG_PPC_STD_MMU_32 + pr_info("Hash_size = 0x%lx\n", Hash_size); +#endif + pr_info("phys_mem_size = 0x%llx\n", + (unsigned long long)memblock_phys_mem_size()); + + pr_info("dcache_bsize = 0x%x\n", dcache_bsize); + pr_info("icache_bsize = 0x%x\n", icache_bsize); + if (ucache_bsize != 0) + pr_info("ucache_bsize = 0x%x\n", ucache_bsize); + + pr_info("cpu_features = 0x%016lx\n", cur_cpu_spec->cpu_features); + pr_info(" possible = 0x%016lx\n", + (unsigned long)CPU_FTRS_POSSIBLE); + pr_info(" always = 0x%016lx\n", + (unsigned long)CPU_FTRS_ALWAYS); + pr_info("cpu_user_features = 0x%08x 0x%08x\n", + cur_cpu_spec->cpu_user_features, + cur_cpu_spec->cpu_user_features2); + pr_info("mmu_features = 0x%08x\n", cur_cpu_spec->mmu_features); +#ifdef CONFIG_PPC64 + pr_info("firmware_features = 0x%016lx\n", powerpc_firmware_features); +#endif + +#ifdef CONFIG_PPC_STD_MMU_64 + if (htab_address) + pr_info("htab_address = 0x%p\n", htab_address); + if (htab_hash_mask) + pr_info("htab_hash_mask = 0x%lx\n", htab_hash_mask); +#endif +#ifdef CONFIG_PPC_STD_MMU_32 + if (Hash) + pr_info("Hash = 0x%p\n", Hash); + if (Hash_mask) + pr_info("Hash_mask = 0x%lx\n", Hash_mask); +#endif + + if (PHYSICAL_START > 0) + pr_info("physical_start = 0x%llx\n", + (unsigned long long)PHYSICAL_START); + pr_info("-----------------------------------------------------\n"); +} + +/* + * Called into from start_kernel this initializes memblock, which is used + * to manage page allocation until mem_init is called. + */ +void __init setup_arch(char **cmdline_p) +{ + *cmdline_p = boot_command_line; + + /* Set a half-reasonable default so udelay does something sensible */ + loops_per_jiffy = 500000000 / HZ; + + /* Unflatten the device-tree passed by prom_init or kexec */ + unflatten_device_tree(); + + /* + * Initialize cache line/block info from device-tree (on ppc64) or + * just cputable (on ppc32). + */ + initialize_cache_info(); + + /* Initialize RTAS if available. */ + rtas_initialize(); + + /* Check if we have an initrd provided via the device-tree. */ + check_for_initrd(); + + /* Probe the machine type, establish ppc_md. */ + probe_machine(); + + /* Setup panic notifier if requested by the platform. */ + setup_panic(); + + /* + * Configure ppc_md.power_save (ppc32 only, 64-bit machines do + * it from their respective probe() function. + */ + setup_power_save(); + + /* Discover standard serial ports. */ + find_legacy_serial_ports(); + + /* Register early console with the printk subsystem. */ + register_early_udbg_console(); + + /* Setup the various CPU maps based on the device-tree. */ + smp_setup_cpu_maps(); + + /* Initialize xmon. */ + xmon_setup(); + + /* Check the SMT related command line arguments (ppc64). */ + check_smt_enabled(); + + /* On BookE, setup per-core TLB data structures. */ + setup_tlb_core_data(); + + /* + * Release secondary cpus out of their spinloops at 0x60 now that + * we can map physical -> logical CPU ids. + * + * Freescale Book3e parts spin in a loop provided by firmware, + * so smp_release_cpus() does nothing for them. + */ +#ifdef CONFIG_SMP + smp_release_cpus(); +#endif + + /* Print various info about the machine that has been gathered so far. */ + print_system_info(); + + /* Reserve large chunks of memory for use by CMA for KVM. */ + kvm_cma_reserve(); + + /* + * Reserve any gigantic pages requested on the command line. + * memblock needs to have been initialized by the time this is + * called since this will reserve memory. + */ + reserve_hugetlb_gpages(); + + klp_init_thread_info(&init_thread_info); + + init_mm.start_code = (unsigned long)_stext; + init_mm.end_code = (unsigned long) _etext; + init_mm.end_data = (unsigned long) _edata; + init_mm.brk = klimit; +#ifdef CONFIG_PPC_64K_PAGES + init_mm.context.pte_frag = NULL; +#endif +#ifdef CONFIG_SPAPR_TCE_IOMMU + mm_iommu_init(&init_mm.context); +#endif + irqstack_early_init(); + exc_lvl_early_init(); + emergency_stack_init(); + + initmem_init(); + +#ifdef CONFIG_DUMMY_CONSOLE + conswitchp = &dummy_con; +#endif + if (ppc_md.setup_arch) + ppc_md.setup_arch(); + + paging_init(); + + /* Initialize the MMU context management stuff. */ + mmu_context_init(); + +#ifdef CONFIG_PPC64 + /* Interrupt code needs to be 64K-aligned. */ + if ((unsigned long)_stext & 0xffff) + panic("Kernelbase not 64K-aligned (0x%lx)!\n", + (unsigned long)_stext); +#endif +} diff --git a/arch/powerpc/kernel/setup.h b/arch/powerpc/kernel/setup.h new file mode 100644 index 000000000000..cfba134b3024 --- /dev/null +++ b/arch/powerpc/kernel/setup.h @@ -0,0 +1,58 @@ +/* + * Prototypes for functions that are shared between setup_(32|64|common).c + * + * Copyright 2016 Michael Ellerman, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef __ARCH_POWERPC_KERNEL_SETUP_H +#define __ARCH_POWERPC_KERNEL_SETUP_H + +void initialize_cache_info(void); +void irqstack_early_init(void); + +#ifdef CONFIG_PPC32 +void setup_power_save(void); +#else +static inline void setup_power_save(void) { }; +#endif + +#if defined(CONFIG_PPC64) && defined(CONFIG_SMP) +void check_smt_enabled(void); +#else +static inline void check_smt_enabled(void) { }; +#endif + +#if defined(CONFIG_PPC_BOOK3E) && defined(CONFIG_SMP) +void setup_tlb_core_data(void); +#else +static inline void setup_tlb_core_data(void) { }; +#endif + +#if defined(CONFIG_PPC_BOOK3E) || defined(CONFIG_BOOKE) || defined(CONFIG_40x) +void exc_lvl_early_init(void); +#else +static inline void exc_lvl_early_init(void) { }; +#endif + +#ifdef CONFIG_PPC64 +void emergency_stack_init(void); +#else +static inline void emergency_stack_init(void) { }; +#endif + +/* + * Having this in kvm_ppc.h makes include dependencies too + * tricky to solve for setup-common.c so have it here. + */ +#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE +void kvm_cma_reserve(void); +#else +static inline void kvm_cma_reserve(void) { }; +#endif + +#endif /* __ARCH_POWERPC_KERNEL_SETUP_H */ diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index d544fa311757..00f57754407e 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -36,8 +36,6 @@ #include <asm/time.h> #include <asm/serial.h> #include <asm/udbg.h> -#include <asm/mmu_context.h> -#include <asm/epapr_hcalls.h> #include <asm/code-patching.h> #define DBG(fmt...) @@ -62,9 +60,7 @@ int icache_bsize; int ucache_bsize; /* - * We're called here very early in the boot. We determine the machine - * type and call the appropriate low-level setup functions. - * -- Cort <cort@fsmlabs.com> + * We're called here very early in the boot. * * Note that the kernel may be running at an address which is different * from the address that it was linked at, so we must use RELOC/PTRRELOC @@ -73,7 +69,6 @@ int ucache_bsize; notrace unsigned long __init early_init(unsigned long dt_ptr) { unsigned long offset = reloc_offset(); - struct cpu_spec *spec; /* First zero the BSS -- use memset_io, some platforms don't have * caches on yet */ @@ -84,27 +79,19 @@ notrace unsigned long __init early_init(unsigned long dt_ptr) * Identify the CPU type and fix up code sections * that depend on which cpu we have. */ - spec = identify_cpu(offset, mfspr(SPRN_PVR)); + identify_cpu(offset, mfspr(SPRN_PVR)); - do_feature_fixups(spec->cpu_features, - PTRRELOC(&__start___ftr_fixup), - PTRRELOC(&__stop___ftr_fixup)); - - do_feature_fixups(spec->mmu_features, - PTRRELOC(&__start___mmu_ftr_fixup), - PTRRELOC(&__stop___mmu_ftr_fixup)); - - do_lwsync_fixups(spec->cpu_features, - PTRRELOC(&__start___lwsync_fixup), - PTRRELOC(&__stop___lwsync_fixup)); - - do_final_fixups(); + apply_feature_fixups(); return KERNELBASE + offset; } /* + * This is run before start_kernel(), the kernel has been relocated + * and we are running with enough of the MMU enabled to have our + * proper kernel virtual addresses + * * Find out what kind of machine we're on and save any data we need * from the early boot process (devtree is copied on pmac by prom_init()). * This is called very early on the boot process, after a minimal @@ -123,27 +110,9 @@ notrace void __init machine_init(u64 dt_ptr) /* Do some early initialization based on the flat device tree */ early_init_devtree(__va(dt_ptr)); - epapr_paravirt_early_init(); - early_init_mmu(); - probe_machine(); - setup_kdump_trampoline(); - -#ifdef CONFIG_6xx - if (cpu_has_feature(CPU_FTR_CAN_DOZE) || - cpu_has_feature(CPU_FTR_CAN_NAP)) - ppc_md.power_save = ppc6xx_idle; -#endif - -#ifdef CONFIG_E500 - if (cpu_has_feature(CPU_FTR_CAN_DOZE) || - cpu_has_feature(CPU_FTR_CAN_NAP)) - ppc_md.power_save = e500_idle; -#endif - if (ppc_md.progress) - ppc_md.progress("id mach(): done", 0x200); } /* Checks "l2cr=xxxx" command-line option */ @@ -221,7 +190,7 @@ int __init ppc_init(void) arch_initcall(ppc_init); -static void __init irqstack_early_init(void) +void __init irqstack_early_init(void) { unsigned int i; @@ -236,7 +205,7 @@ static void __init irqstack_early_init(void) } #if defined(CONFIG_BOOKE) || defined(CONFIG_40x) -static void __init exc_lvl_early_init(void) +void __init exc_lvl_early_init(void) { unsigned int i, hw_cpu; @@ -259,33 +228,25 @@ static void __init exc_lvl_early_init(void) #endif } } -#else -#define exc_lvl_early_init() #endif -/* Warning, IO base is not yet inited */ -void __init setup_arch(char **cmdline_p) +void __init setup_power_save(void) { - *cmdline_p = boot_command_line; - - /* so udelay does something sensible, assume <= 1000 bogomips */ - loops_per_jiffy = 500000000 / HZ; - - unflatten_device_tree(); - check_for_initrd(); - - if (ppc_md.init_early) - ppc_md.init_early(); - - find_legacy_serial_ports(); - - smp_setup_cpu_maps(); - - /* Register early console */ - register_early_udbg_console(); +#ifdef CONFIG_6xx + if (cpu_has_feature(CPU_FTR_CAN_DOZE) || + cpu_has_feature(CPU_FTR_CAN_NAP)) + ppc_md.power_save = ppc6xx_idle; +#endif - xmon_setup(); +#ifdef CONFIG_E500 + if (cpu_has_feature(CPU_FTR_CAN_DOZE) || + cpu_has_feature(CPU_FTR_CAN_NAP)) + ppc_md.power_save = e500_idle; +#endif +} +__init void initialize_cache_info(void) +{ /* * Set cache line size based on type of cpu as a default. * Systems with OF can look in the properties on the cpu node(s) @@ -296,32 +257,4 @@ void __init setup_arch(char **cmdline_p) ucache_bsize = 0; if (cpu_has_feature(CPU_FTR_UNIFIED_ID_CACHE)) ucache_bsize = icache_bsize = dcache_bsize; - - if (ppc_md.panic) - setup_panic(); - - init_mm.start_code = (unsigned long)_stext; - init_mm.end_code = (unsigned long) _etext; - init_mm.end_data = (unsigned long) _edata; - init_mm.brk = klimit; - - exc_lvl_early_init(); - - irqstack_early_init(); - - initmem_init(); - if ( ppc_md.progress ) ppc_md.progress("setup_arch: initmem", 0x3eab); - -#ifdef CONFIG_DUMMY_CONSOLE - conswitchp = &dummy_con; -#endif - - if (ppc_md.setup_arch) - ppc_md.setup_arch(); - if ( ppc_md.progress ) ppc_md.progress("arch: exit", 0x3eab); - - paging_init(); - - /* Initialize the MMU context management stuff */ - mmu_context_init(); } diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 96d4a2b23d0f..d8216aed22b7 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -35,7 +35,6 @@ #include <linux/pci.h> #include <linux/lockdep.h> #include <linux/memblock.h> -#include <linux/hugetlb.h> #include <linux/memory.h> #include <linux/nmi.h> @@ -64,12 +63,10 @@ #include <asm/xmon.h> #include <asm/udbg.h> #include <asm/kexec.h> -#include <asm/mmu_context.h> #include <asm/code-patching.h> -#include <asm/kvm_ppc.h> -#include <asm/hugetlb.h> -#include <asm/epapr_hcalls.h> #include <asm/livepatch.h> +#include <asm/opal.h> +#include <asm/cputhreads.h> #ifdef DEBUG #define DBG(fmt...) udbg_printf(fmt) @@ -100,7 +97,7 @@ int icache_bsize; int ucache_bsize; #if defined(CONFIG_PPC_BOOK3E) && defined(CONFIG_SMP) -static void setup_tlb_core_data(void) +void __init setup_tlb_core_data(void) { int cpu; @@ -133,10 +130,6 @@ static void setup_tlb_core_data(void) } } } -#else -static void setup_tlb_core_data(void) -{ -} #endif #ifdef CONFIG_SMP @@ -144,7 +137,7 @@ static void setup_tlb_core_data(void) static char *smt_enabled_cmdline; /* Look for ibm,smt-enabled OF option */ -static void check_smt_enabled(void) +void __init check_smt_enabled(void) { struct device_node *dn; const char *smt_option; @@ -193,12 +186,10 @@ static int __init early_smt_enabled(char *p) } early_param("smt-enabled", early_smt_enabled); -#else -#define check_smt_enabled() #endif /* CONFIG_SMP */ /** Fix up paca fields required for the boot cpu */ -static void fixup_boot_paca(void) +static void __init fixup_boot_paca(void) { /* The boot cpu is started */ get_paca()->cpu_start = 1; @@ -206,23 +197,50 @@ static void fixup_boot_paca(void) get_paca()->data_offset = 0; } -static void cpu_ready_for_interrupts(void) +static void __init configure_exceptions(void) { - /* Set IR and DR in PACA MSR */ - get_paca()->kernel_msr = MSR_KERNEL; - /* - * Enable AIL if supported, and we are in hypervisor mode. If we are - * not in hypervisor mode, we enable relocation-on interrupts later - * in pSeries_setup_arch() using the H_SET_MODE hcall. + * Setup the trampolines from the lowmem exception vectors + * to the kdump kernel when not using a relocatable kernel. */ - if (cpu_has_feature(CPU_FTR_HVMODE) && - cpu_has_feature(CPU_FTR_ARCH_207S)) { - unsigned long lpcr = mfspr(SPRN_LPCR); - mtspr(SPRN_LPCR, lpcr | LPCR_AIL_3); + setup_kdump_trampoline(); + + /* Under a PAPR hypervisor, we need hypercalls */ + if (firmware_has_feature(FW_FEATURE_SET_MODE)) { + /* Enable AIL if possible */ + pseries_enable_reloc_on_exc(); + + /* + * Tell the hypervisor that we want our exceptions to + * be taken in little endian mode. + * + * We don't call this for big endian as our calling convention + * makes us always enter in BE, and the call may fail under + * some circumstances with kdump. + */ +#ifdef __LITTLE_ENDIAN__ + pseries_little_endian_exceptions(); +#endif + } else { + /* Set endian mode using OPAL */ + if (firmware_has_feature(FW_FEATURE_OPAL)) + opal_configure_cores(); + + /* Enable AIL if supported, and we are in hypervisor mode */ + if (cpu_has_feature(CPU_FTR_HVMODE) && + cpu_has_feature(CPU_FTR_ARCH_207S)) { + unsigned long lpcr = mfspr(SPRN_LPCR); + mtspr(SPRN_LPCR, lpcr | LPCR_AIL_3); + } } } +static void cpu_ready_for_interrupts(void) +{ + /* Set IR and DR in PACA MSR */ + get_paca()->kernel_msr = MSR_KERNEL; +} + /* * Early initialization entry point. This is called by head.S * with MMU translation disabled. We rely on the "feature" of @@ -270,22 +288,22 @@ void __init early_setup(unsigned long dt_ptr) */ early_init_devtree(__va(dt_ptr)); - epapr_paravirt_early_init(); - /* Now we know the logical id of our boot cpu, setup the paca. */ setup_paca(&paca[boot_cpuid]); fixup_boot_paca(); - /* Probe the machine type */ - probe_machine(); - - setup_kdump_trampoline(); - - DBG("Found, Initializing memory management...\n"); + /* + * Configure exception handlers. This include setting up trampolines + * if needed, setting exception endian mode, etc... + */ + configure_exceptions(); /* Initialize the hash table or TLB handling */ early_init_mmu(); + /* Apply all the dynamic patching */ + apply_feature_fixups(); + /* * At this point, we can let interrupts switch to virtual mode * (the MMU has been setup), so adjust the MSR in the PACA to @@ -293,16 +311,6 @@ void __init early_setup(unsigned long dt_ptr) */ cpu_ready_for_interrupts(); - /* Reserve large chunks of memory for use by CMA for KVM */ - kvm_cma_reserve(); - - /* - * Reserve any gigantic pages requested on the command line. - * memblock needs to have been initialized by the time this is - * called since this will reserve memory. - */ - reserve_hugetlb_gpages(); - DBG(" <- early_setup()\n"); #ifdef CONFIG_PPC_EARLY_DEBUG_BOOTX @@ -321,7 +329,7 @@ void __init early_setup(unsigned long dt_ptr) #ifdef CONFIG_SMP void early_setup_secondary(void) { - /* Mark interrupts enabled in PACA */ + /* Mark interrupts disabled in PACA */ get_paca()->soft_enabled = 0; /* Initialize the hash table or TLB handling */ @@ -391,7 +399,7 @@ void smp_release_cpus(void) * cache informations about the CPU that will be used by cache flush * routines and/or provided to userland */ -static void __init initialize_cache_info(void) +void __init initialize_cache_info(void) { struct device_node *np; unsigned long num_cpus = 0; @@ -456,127 +464,11 @@ static void __init initialize_cache_info(void) } } - DBG(" <- initialize_cache_info()\n"); -} - - -/* - * Do some initial setup of the system. The parameters are those which - * were passed in from the bootloader. - */ -void __init setup_system(void) -{ - DBG(" -> setup_system()\n"); - - /* Apply the CPUs-specific and firmware specific fixups to kernel - * text (nop out sections not relevant to this CPU or this firmware) - */ - do_feature_fixups(cur_cpu_spec->cpu_features, - &__start___ftr_fixup, &__stop___ftr_fixup); - do_feature_fixups(cur_cpu_spec->mmu_features, - &__start___mmu_ftr_fixup, &__stop___mmu_ftr_fixup); - do_feature_fixups(powerpc_firmware_features, - &__start___fw_ftr_fixup, &__stop___fw_ftr_fixup); - do_lwsync_fixups(cur_cpu_spec->cpu_features, - &__start___lwsync_fixup, &__stop___lwsync_fixup); - do_final_fixups(); - - /* - * Unflatten the device-tree passed by prom_init or kexec - */ - unflatten_device_tree(); - - /* - * Fill the ppc64_caches & systemcfg structures with informations - * retrieved from the device-tree. - */ - initialize_cache_info(); - -#ifdef CONFIG_PPC_RTAS - /* - * Initialize RTAS if available - */ - rtas_initialize(); -#endif /* CONFIG_PPC_RTAS */ - - /* - * Check if we have an initrd provided via the device-tree - */ - check_for_initrd(); - - /* - * Do some platform specific early initializations, that includes - * setting up the hash table pointers. It also sets up some interrupt-mapping - * related options that will be used by finish_device_tree() - */ - if (ppc_md.init_early) - ppc_md.init_early(); - - /* - * We can discover serial ports now since the above did setup the - * hash table management for us, thus ioremap works. We do that early - * so that further code can be debugged - */ - find_legacy_serial_ports(); - - /* - * Register early console - */ - register_early_udbg_console(); - - /* - * Initialize xmon - */ - xmon_setup(); - - smp_setup_cpu_maps(); - check_smt_enabled(); - setup_tlb_core_data(); - - /* - * Freescale Book3e parts spin in a loop provided by firmware, - * so smp_release_cpus() does nothing for them - */ -#if defined(CONFIG_SMP) - /* Release secondary cpus out of their spinloops at 0x60 now that - * we can map physical -> logical CPU ids - */ - smp_release_cpus(); -#endif - - pr_info("Starting Linux %s %s\n", init_utsname()->machine, - init_utsname()->version); - - pr_info("-----------------------------------------------------\n"); - pr_info("ppc64_pft_size = 0x%llx\n", ppc64_pft_size); - pr_info("phys_mem_size = 0x%llx\n", memblock_phys_mem_size()); - - if (ppc64_caches.dline_size != 0x80) - pr_info("dcache_line_size = 0x%x\n", ppc64_caches.dline_size); - if (ppc64_caches.iline_size != 0x80) - pr_info("icache_line_size = 0x%x\n", ppc64_caches.iline_size); - - pr_info("cpu_features = 0x%016lx\n", cur_cpu_spec->cpu_features); - pr_info(" possible = 0x%016lx\n", CPU_FTRS_POSSIBLE); - pr_info(" always = 0x%016lx\n", CPU_FTRS_ALWAYS); - pr_info("cpu_user_features = 0x%08x 0x%08x\n", cur_cpu_spec->cpu_user_features, - cur_cpu_spec->cpu_user_features2); - pr_info("mmu_features = 0x%08x\n", cur_cpu_spec->mmu_features); - pr_info("firmware_features = 0x%016lx\n", powerpc_firmware_features); - -#ifdef CONFIG_PPC_STD_MMU_64 - if (htab_address) - pr_info("htab_address = 0x%p\n", htab_address); - - pr_info("htab_hash_mask = 0x%lx\n", htab_hash_mask); -#endif - - if (PHYSICAL_START > 0) - pr_info("physical_start = 0x%llx\n", - (unsigned long long)PHYSICAL_START); - pr_info("-----------------------------------------------------\n"); + /* For use by binfmt_elf */ + dcache_bsize = ppc64_caches.dline_size; + icache_bsize = ppc64_caches.iline_size; - DBG(" <- setup_system()\n"); + DBG(" <- initialize_cache_info()\n"); } /* This returns the limit below which memory accesses to the linear @@ -584,7 +476,7 @@ void __init setup_system(void) * used to allocate interrupt or emergency stacks for which our * exception entry path doesn't deal with being interrupted. */ -static u64 safe_stack_limit(void) +static __init u64 safe_stack_limit(void) { #ifdef CONFIG_PPC_BOOK3E /* Freescale BookE bolts the entire linear mapping */ @@ -600,7 +492,7 @@ static u64 safe_stack_limit(void) #endif } -static void __init irqstack_early_init(void) +void __init irqstack_early_init(void) { u64 limit = safe_stack_limit(); unsigned int i; @@ -620,7 +512,7 @@ static void __init irqstack_early_init(void) } #ifdef CONFIG_PPC_BOOK3E -static void __init exc_lvl_early_init(void) +void __init exc_lvl_early_init(void) { unsigned int i; unsigned long sp; @@ -642,8 +534,6 @@ static void __init exc_lvl_early_init(void) if (cpu_has_feature(CPU_FTR_DEBUG_LVL_EXC)) patch_exception(0x040, exc_debug_debug_book3e); } -#else -#define exc_lvl_early_init() #endif /* @@ -651,7 +541,7 @@ static void __init exc_lvl_early_init(void) * early in SMP boots before relocation is enabled. Exclusive emergency * stack for machine checks. */ -static void __init emergency_stack_init(void) +void __init emergency_stack_init(void) { u64 limit; unsigned int i; @@ -682,61 +572,6 @@ static void __init emergency_stack_init(void) } } -/* - * Called into from start_kernel this initializes memblock, which is used - * to manage page allocation until mem_init is called. - */ -void __init setup_arch(char **cmdline_p) -{ - *cmdline_p = boot_command_line; - - /* - * Set cache line size based on type of cpu as a default. - * Systems with OF can look in the properties on the cpu node(s) - * for a possibly more accurate value. - */ - dcache_bsize = ppc64_caches.dline_size; - icache_bsize = ppc64_caches.iline_size; - - if (ppc_md.panic) - setup_panic(); - - klp_init_thread_info(&init_thread_info); - - init_mm.start_code = (unsigned long)_stext; - init_mm.end_code = (unsigned long) _etext; - init_mm.end_data = (unsigned long) _edata; - init_mm.brk = klimit; -#ifdef CONFIG_PPC_64K_PAGES - init_mm.context.pte_frag = NULL; -#endif -#ifdef CONFIG_SPAPR_TCE_IOMMU - mm_iommu_init(&init_mm.context); -#endif - irqstack_early_init(); - exc_lvl_early_init(); - emergency_stack_init(); - - initmem_init(); - -#ifdef CONFIG_DUMMY_CONSOLE - conswitchp = &dummy_con; -#endif - - if (ppc_md.setup_arch) - ppc_md.setup_arch(); - - paging_init(); - - /* Initialize the MMU context management stuff */ - mmu_context_init(); - - /* Interrupt code needs to be 64K-aligned */ - if ((unsigned long)_stext & 0xffff) - panic("Kernelbase not 64K-aligned (0x%lx)!\n", - (unsigned long)_stext); -} - #ifdef CONFIG_SMP #define PCPU_DYN_SIZE () diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c index 25520794aa37..7e49984d4331 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -104,6 +104,7 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, */ #ifdef CONFIG_ALTIVEC elf_vrreg_t __user *v_regs = sigcontext_vmx_regs(sc); + unsigned long vrsave; #endif unsigned long msr = regs->msr; long err = 0; @@ -125,9 +126,13 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, /* We always copy to/from vrsave, it's 0 if we don't have or don't * use altivec. */ - if (cpu_has_feature(CPU_FTR_ALTIVEC)) - current->thread.vrsave = mfspr(SPRN_VRSAVE); - err |= __put_user(current->thread.vrsave, (u32 __user *)&v_regs[33]); + vrsave = 0; + if (cpu_has_feature(CPU_FTR_ALTIVEC)) { + vrsave = mfspr(SPRN_VRSAVE); + current->thread.vrsave = vrsave; + } + + err |= __put_user(vrsave, (u32 __user *)&v_regs[33]); #else /* CONFIG_ALTIVEC */ err |= __put_user(0, &sc->v_regs); #endif /* CONFIG_ALTIVEC */ diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 55c924b65f71..5a1f015ea9f3 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -31,6 +31,7 @@ #include <linux/cpu.h> #include <linux/notifier.h> #include <linux/topology.h> +#include <linux/profile.h> #include <asm/ptrace.h> #include <linux/atomic.h> @@ -53,6 +54,7 @@ #include <asm/vdso.h> #include <asm/debug.h> #include <asm/kexec.h> +#include <asm/asm-prototypes.h> #ifdef DEBUG #include <asm/udbg.h> @@ -593,6 +595,7 @@ out: of_node_put(np); return id; } +EXPORT_SYMBOL_GPL(cpu_to_core_id); /* Helper routines for cpu to core mapping */ int cpu_core_index_of_thread(int cpu) diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c index 692873bff334..c4f1d1f7bae0 100644 --- a/arch/powerpc/kernel/sysfs.c +++ b/arch/powerpc/kernel/sysfs.c @@ -35,7 +35,7 @@ static DEFINE_PER_CPU(struct cpu, cpu_devices); #ifdef CONFIG_PPC64 /* Time in microseconds we delay before sleeping in the idle loop */ -DEFINE_PER_CPU(long, smt_snooze_delay) = { 100 }; +static DEFINE_PER_CPU(long, smt_snooze_delay) = { 100 }; static ssize_t store_smt_snooze_delay(struct device *dev, struct device_attribute *attr, diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 3ed9a5a21d77..4e7759c8ca30 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -96,7 +96,8 @@ static struct clocksource clocksource_timebase = { .read = timebase_read, }; -#define DECREMENTER_MAX 0x7fffffff +#define DECREMENTER_DEFAULT_MAX 0x7FFFFFFF +u64 decrementer_max = DECREMENTER_DEFAULT_MAX; static int decrementer_set_next_event(unsigned long evt, struct clock_event_device *dev); @@ -166,7 +167,15 @@ DEFINE_PER_CPU(unsigned long, cputime_scaled_last_delta); cputime_t cputime_one_jiffy; +#ifdef CONFIG_PPC_SPLPAR void (*dtl_consumer)(struct dtl_entry *, u64); +#endif + +#ifdef CONFIG_PPC64 +#define get_accounting(tsk) (&get_paca()->accounting) +#else +#define get_accounting(tsk) (&task_thread_info(tsk)->accounting) +#endif static void calc_cputime_factors(void) { @@ -186,7 +195,7 @@ static void calc_cputime_factors(void) * Read the SPURR on systems that have it, otherwise the PURR, * or if that doesn't exist return the timebase value passed in. */ -static u64 read_spurr(u64 tb) +static unsigned long read_spurr(unsigned long tb) { if (cpu_has_feature(CPU_FTR_SPURR)) return mfspr(SPRN_SPURR); @@ -249,8 +258,8 @@ static u64 scan_dispatch_log(u64 stop_tb) void accumulate_stolen_time(void) { u64 sst, ust; - u8 save_soft_enabled = local_paca->soft_enabled; + struct cpu_accounting_data *acct = &local_paca->accounting; /* We are called early in the exception entry, before * soft/hard_enabled are sync'ed to the expected state @@ -260,10 +269,10 @@ void accumulate_stolen_time(void) */ local_paca->soft_enabled = 0; - sst = scan_dispatch_log(local_paca->starttime_user); - ust = scan_dispatch_log(local_paca->starttime); - local_paca->system_time -= sst; - local_paca->user_time -= ust; + sst = scan_dispatch_log(acct->starttime_user); + ust = scan_dispatch_log(acct->starttime); + acct->system_time -= sst; + acct->user_time -= ust; local_paca->stolen_time += ust + sst; local_paca->soft_enabled = save_soft_enabled; @@ -275,7 +284,7 @@ static inline u64 calculate_stolen_time(u64 stop_tb) if (get_paca()->dtl_ridx != be64_to_cpu(get_lppaca()->dtl_idx)) { stolen = scan_dispatch_log(stop_tb); - get_paca()->system_time -= stolen; + get_paca()->accounting.system_time -= stolen; } stolen += get_paca()->stolen_time; @@ -295,27 +304,29 @@ static inline u64 calculate_stolen_time(u64 stop_tb) * Account time for a transition between system, hard irq * or soft irq state. */ -static u64 vtime_delta(struct task_struct *tsk, - u64 *sys_scaled, u64 *stolen) +static unsigned long vtime_delta(struct task_struct *tsk, + unsigned long *sys_scaled, + unsigned long *stolen) { - u64 now, nowscaled, deltascaled; - u64 udelta, delta, user_scaled; + unsigned long now, nowscaled, deltascaled; + unsigned long udelta, delta, user_scaled; + struct cpu_accounting_data *acct = get_accounting(tsk); WARN_ON_ONCE(!irqs_disabled()); now = mftb(); nowscaled = read_spurr(now); - get_paca()->system_time += now - get_paca()->starttime; - get_paca()->starttime = now; - deltascaled = nowscaled - get_paca()->startspurr; - get_paca()->startspurr = nowscaled; + acct->system_time += now - acct->starttime; + acct->starttime = now; + deltascaled = nowscaled - acct->startspurr; + acct->startspurr = nowscaled; *stolen = calculate_stolen_time(now); - delta = get_paca()->system_time; - get_paca()->system_time = 0; - udelta = get_paca()->user_time - get_paca()->utime_sspurr; - get_paca()->utime_sspurr = get_paca()->user_time; + delta = acct->system_time; + acct->system_time = 0; + udelta = acct->user_time - acct->utime_sspurr; + acct->utime_sspurr = acct->user_time; /* * Because we don't read the SPURR on every kernel entry/exit, @@ -337,14 +348,14 @@ static u64 vtime_delta(struct task_struct *tsk, *sys_scaled = deltascaled; } } - get_paca()->user_time_scaled += user_scaled; + acct->user_time_scaled += user_scaled; return delta; } void vtime_account_system(struct task_struct *tsk) { - u64 delta, sys_scaled, stolen; + unsigned long delta, sys_scaled, stolen; delta = vtime_delta(tsk, &sys_scaled, &stolen); account_system_time(tsk, 0, delta, sys_scaled); @@ -355,7 +366,7 @@ EXPORT_SYMBOL_GPL(vtime_account_system); void vtime_account_idle(struct task_struct *tsk) { - u64 delta, sys_scaled, stolen; + unsigned long delta, sys_scaled, stolen; delta = vtime_delta(tsk, &sys_scaled, &stolen); account_idle_time(delta + stolen); @@ -373,15 +384,32 @@ void vtime_account_idle(struct task_struct *tsk) void vtime_account_user(struct task_struct *tsk) { cputime_t utime, utimescaled; + struct cpu_accounting_data *acct = get_accounting(tsk); - utime = get_paca()->user_time; - utimescaled = get_paca()->user_time_scaled; - get_paca()->user_time = 0; - get_paca()->user_time_scaled = 0; - get_paca()->utime_sspurr = 0; + utime = acct->user_time; + utimescaled = acct->user_time_scaled; + acct->user_time = 0; + acct->user_time_scaled = 0; + acct->utime_sspurr = 0; account_user_time(tsk, utime, utimescaled); } +#ifdef CONFIG_PPC32 +/* + * Called from the context switch with interrupts disabled, to charge all + * accumulated times to the current process, and to prepare accounting on + * the next process. + */ +void arch_vtime_task_switch(struct task_struct *prev) +{ + struct cpu_accounting_data *acct = get_accounting(current); + + acct->starttime = get_accounting(prev)->starttime; + acct->system_time = 0; + acct->user_time = 0; +} +#endif /* CONFIG_PPC32 */ + #else /* ! CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ #define calc_cputime_factors() #endif @@ -504,8 +532,8 @@ static void __timer_interrupt(void) __this_cpu_inc(irq_stat.timer_irqs_event); } else { now = *next_tb - now; - if (now <= DECREMENTER_MAX) - set_dec((int)now); + if (now <= decrementer_max) + set_dec(now); /* We may have raced with new irq work */ if (test_irq_work_pending()) set_dec(1); @@ -535,7 +563,7 @@ void timer_interrupt(struct pt_regs * regs) /* Ensure a positive value is written to the decrementer, or else * some CPUs will continue to take decrementer exceptions. */ - set_dec(DECREMENTER_MAX); + set_dec(decrementer_max); /* Some implementations of hotplug will get timer interrupts while * offline, just ignore these and we also need to set @@ -583,9 +611,9 @@ static void generic_suspend_disable_irqs(void) * with suspending. */ - set_dec(DECREMENTER_MAX); + set_dec(decrementer_max); local_irq_disable(); - set_dec(DECREMENTER_MAX); + set_dec(decrementer_max); } static void generic_suspend_enable_irqs(void) @@ -866,7 +894,7 @@ static int decrementer_set_next_event(unsigned long evt, static int decrementer_shutdown(struct clock_event_device *dev) { - decrementer_set_next_event(DECREMENTER_MAX, dev); + decrementer_set_next_event(decrementer_max, dev); return 0; } @@ -892,6 +920,49 @@ static void register_decrementer_clockevent(int cpu) clockevents_register_device(dec); } +static void enable_large_decrementer(void) +{ + if (!cpu_has_feature(CPU_FTR_ARCH_300)) + return; + + if (decrementer_max <= DECREMENTER_DEFAULT_MAX) + return; + + /* + * If we're running as the hypervisor we need to enable the LD manually + * otherwise firmware should have done it for us. + */ + if (cpu_has_feature(CPU_FTR_HVMODE)) + mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) | LPCR_LD); +} + +static void __init set_decrementer_max(void) +{ + struct device_node *cpu; + u32 bits = 32; + + /* Prior to ISAv3 the decrementer is always 32 bit */ + if (!cpu_has_feature(CPU_FTR_ARCH_300)) + return; + + cpu = of_find_node_by_type(NULL, "cpu"); + + if (of_property_read_u32(cpu, "ibm,dec-bits", &bits) == 0) { + if (bits > 64 || bits < 32) { + pr_warn("time_init: firmware supplied invalid ibm,dec-bits"); + bits = 32; + } + + /* calculate the signed maximum given this many bits */ + decrementer_max = (1ul << (bits - 1)) - 1; + } + + of_node_put(cpu); + + pr_info("time_init: %u bit decrementer (max: %llx)\n", + bits, decrementer_max); +} + static void __init init_decrementer_clockevent(void) { int cpu = smp_processor_id(); @@ -899,7 +970,7 @@ static void __init init_decrementer_clockevent(void) clockevents_calc_mult_shift(&decrementer_clockevent, ppc_tb_freq, 4); decrementer_clockevent.max_delta_ns = - clockevent_delta2ns(DECREMENTER_MAX, &decrementer_clockevent); + clockevent_delta2ns(decrementer_max, &decrementer_clockevent); decrementer_clockevent.min_delta_ns = clockevent_delta2ns(2, &decrementer_clockevent); @@ -908,6 +979,9 @@ static void __init init_decrementer_clockevent(void) void secondary_cpu_time_init(void) { + /* Enable and test the large decrementer for this cpu */ + enable_large_decrementer(); + /* Start the decrementer on CPUs that have manual control * such as BookE */ @@ -973,6 +1047,10 @@ void __init time_init(void) vdso_data->tb_update_count = 0; vdso_data->tb_ticks_per_sec = tb_ticks_per_sec; + /* initialise and enable the large decrementer (if we have one) */ + set_decrementer_max(); + enable_large_decrementer(); + /* Start the decrementer on CPUs that have manual control * such as BookE */ diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S index b7019b559ddb..298afcf3bf2a 100644 --- a/arch/powerpc/kernel/tm.S +++ b/arch/powerpc/kernel/tm.S @@ -338,8 +338,6 @@ _GLOBAL(__tm_recheckpoint) */ subi r7, r7, STACK_FRAME_OVERHEAD - SET_SCRATCH0(r1) - mfmsr r6 /* R4 = original MSR to indicate whether thread used FP/Vector etc. */ @@ -468,6 +466,7 @@ restore_gprs: * until we turn MSR RI back on. */ + SET_SCRATCH0(r1) ld r5, -8(r1) ld r1, -16(r1) diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 9229ba63c370..f7e2f2e318bd 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -60,6 +60,7 @@ #include <asm/switch_to.h> #include <asm/tm.h> #include <asm/debug.h> +#include <asm/asm-prototypes.h> #include <sysdev/fsl_pci.h> #if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC) @@ -1376,6 +1377,7 @@ void facility_unavailable_exception(struct pt_regs *regs) [FSCR_TM_LG] = "TM", [FSCR_EBB_LG] = "EBB", [FSCR_TAR_LG] = "TAR", + [FSCR_LM_LG] = "LM", }; char *facility = "unknown"; u64 value; @@ -1418,7 +1420,8 @@ void facility_unavailable_exception(struct pt_regs *regs) rd = (instword >> 21) & 0x1f; current->thread.dscr = regs->gpr[rd]; current->thread.dscr_inherit = 1; - mtspr(SPRN_FSCR, value | FSCR_DSCR); + current->thread.fscr |= FSCR_DSCR; + mtspr(SPRN_FSCR, current->thread.fscr); } /* Read from DSCR (mfspr RT, 0x03) */ @@ -1432,6 +1435,14 @@ void facility_unavailable_exception(struct pt_regs *regs) emulate_single_step(regs); } return; + } else if ((status == FSCR_LM_LG) && cpu_has_feature(CPU_FTR_ARCH_300)) { + /* + * This process has touched LM, so turn it on forever + * for this process + */ + current->thread.fscr |= FSCR_LM; + mtspr(SPRN_FSCR, current->thread.fscr); + return; } if ((status < ARRAY_SIZE(facility_strings)) && diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S index 1c2e7a343bf5..616a6d854638 100644 --- a/arch/powerpc/kernel/vector.S +++ b/arch/powerpc/kernel/vector.S @@ -70,10 +70,11 @@ _GLOBAL(load_up_altivec) MTMSRD(r5) /* enable use of AltiVec now */ isync - /* Hack: if we get an altivec unavailable trap with VRSAVE - * set to all zeros, we assume this is a broken application - * that fails to set it properly, and thus we switch it to - * all 1's + /* + * While userspace in general ignores VRSAVE, glibc uses it as a boolean + * to optimise userspace context save/restore. Whenever we take an + * altivec unavailable exception we must set VRSAVE to something non + * zero. Set it to all 1s. See also the programming note in the ISA. */ mfspr r4,SPRN_VRSAVE cmpwi 0,r4,0 diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 2dd91f79de05..b5fba689fca6 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -165,7 +165,7 @@ SECTIONS . = ALIGN(8); .dynsym : AT(ADDR(.dynsym) - LOAD_OFFSET) { -#ifdef CONFIG_RELOCATABLE_PPC32 +#ifdef CONFIG_PPC32 __dynamic_symtab = .; #endif *(.dynsym) diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c index 114edace6cdd..a587e8f4fd26 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_host.c +++ b/arch/powerpc/kvm/book3s_64_mmu_host.c @@ -34,9 +34,9 @@ void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte) { - ppc_md.hpte_invalidate(pte->slot, pte->host_vpn, - pte->pagesize, pte->pagesize, MMU_SEGSIZE_256M, - false); + mmu_hash_ops.hpte_invalidate(pte->slot, pte->host_vpn, + pte->pagesize, pte->pagesize, + MMU_SEGSIZE_256M, false); } /* We keep 512 gvsid->hvsid entries, mapping the guest ones to the array using @@ -169,13 +169,13 @@ map_again: /* In case we tried normal mapping already, let's nuke old entries */ if (attempt > 1) - if (ppc_md.hpte_remove(hpteg) < 0) { + if (mmu_hash_ops.hpte_remove(hpteg) < 0) { r = -1; goto out_unlock; } - ret = ppc_md.hpte_insert(hpteg, vpn, hpaddr, rflags, vflags, - hpsize, hpsize, MMU_SEGSIZE_256M); + ret = mmu_hash_ops.hpte_insert(hpteg, vpn, hpaddr, rflags, vflags, + hpsize, hpsize, MMU_SEGSIZE_256M); if (ret < 0) { /* If we couldn't map a primary PTE, try a secondary */ @@ -187,8 +187,10 @@ map_again: trace_kvm_book3s_64_mmu_map(rflags, hpteg, vpn, hpaddr, orig_pte); - /* The ppc_md code may give us a secondary entry even though we - asked for a primary. Fix up. */ + /* + * The mmu_hash_ops code may give us a secondary entry even + * though we asked for a primary. Fix up. + */ if ((ret & _PTEIDX_SECONDARY) && !(vflags & HPTE_V_SECONDARY)) { hash = ~hash; hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP); diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c index 18cf6d1f8174..c379ff5a4438 100644 --- a/arch/powerpc/kvm/book3s_64_vio.c +++ b/arch/powerpc/kvm/book3s_64_vio.c @@ -242,7 +242,8 @@ long kvmppc_h_put_tce_indirect(struct kvm_vcpu *vcpu, struct kvmppc_spapr_tce_table *stt; long i, ret = H_SUCCESS, idx; unsigned long entry, ua = 0; - u64 __user *tces, tce; + u64 __user *tces; + u64 tce; stt = kvmppc_find_table(vcpu, liobn); if (!stt) diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index e571ad277398..86f0cae37a85 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -392,7 +392,7 @@ kvm_no_guest: cmpwi r3, 0 bne 54f /* - * We jump to power7_wakeup_loss, which will return to the caller + * We jump to pnv_wakeup_loss, which will return to the caller * of power7_nap in the powernv cpu offline loop. The value we * put in r3 becomes the return value for power7_nap. */ @@ -401,7 +401,7 @@ kvm_no_guest: rlwimi r4, r3, 0, LPCR_PECE0 | LPCR_PECE1 mtspr SPRN_LPCR, r4 li r3, 0 - b power7_wakeup_loss + b pnv_wakeup_loss 53: HMT_LOW ld r5, HSTATE_KVM_VCORE(r13) diff --git a/arch/powerpc/kvm/book3s_interrupts.S b/arch/powerpc/kvm/book3s_interrupts.S index d044b8b7c69d..901e6fe00c39 100644 --- a/arch/powerpc/kvm/book3s_interrupts.S +++ b/arch/powerpc/kvm/book3s_interrupts.S @@ -25,7 +25,7 @@ #include <asm/exception-64s.h> #if defined(CONFIG_PPC_BOOK3S_64) -#if defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 #define FUNC(name) name #else #define FUNC(name) GLUE(.,name) diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 8e4f64f0b774..c4f7d6b86b9e 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -35,7 +35,7 @@ #include <asm/mmu_context.h> #include <asm/switch_to.h> #include <asm/firmware.h> -#include <asm/hvcall.h> +#include <asm/setup.h> #include <linux/gfp.h> #include <linux/sched.h> #include <linux/vmalloc.h> @@ -1690,7 +1690,7 @@ static int kvmppc_core_init_vm_pr(struct kvm *kvm) if (firmware_has_feature(FW_FEATURE_SET_MODE)) { spin_lock(&kvm_global_user_count_lock); if (++kvm_global_user_count == 1) - pSeries_disable_reloc_on_exc(); + pseries_disable_reloc_on_exc(); spin_unlock(&kvm_global_user_count_lock); } return 0; @@ -1706,7 +1706,7 @@ static void kvmppc_core_destroy_vm_pr(struct kvm *kvm) spin_lock(&kvm_global_user_count_lock); BUG_ON(kvm_global_user_count == 0); if (--kvm_global_user_count == 0) - pSeries_enable_reloc_on_exc(); + pseries_enable_reloc_on_exc(); spin_unlock(&kvm_global_user_count_lock); } } diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S index 16c4d88ba27d..42a4b237df5f 100644 --- a/arch/powerpc/kvm/book3s_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_rmhandlers.S @@ -36,7 +36,7 @@ #if defined(CONFIG_PPC_BOOK3S_64) -#if defined(_CALL_ELF) && _CALL_ELF == 2 +#ifdef PPC64_ELF_ABI_v2 #define FUNC(name) name #else #define FUNC(name) GLUE(.,name) diff --git a/arch/powerpc/lib/checksum_64.S b/arch/powerpc/lib/checksum_64.S index 8e6e51016cc5..fdec6e613e95 100644 --- a/arch/powerpc/lib/checksum_64.S +++ b/arch/powerpc/lib/checksum_64.S @@ -74,9 +74,9 @@ _GLOBAL(__csum_partial) ld r11,24(r3) /* - * On POWER6 and POWER7 back to back addes take 2 cycles because of - * the XER dependency. This means the fastest this loop can go is - * 16 cycles per iteration. The scheduling of the loop below has + * On POWER6 and POWER7 back to back adde instructions take 2 cycles + * because of the XER dependency. This means the fastest this loop can + * go is 16 cycles per iteration. The scheduling of the loop below has * been shown to hit this on both POWER6 and POWER7. */ .align 5 @@ -275,9 +275,9 @@ source; ld r10,16(r3) source; ld r11,24(r3) /* - * On POWER6 and POWER7 back to back addes take 2 cycles because of - * the XER dependency. This means the fastest this loop can go is - * 16 cycles per iteration. The scheduling of the loop below has + * On POWER6 and POWER7 back to back adde instructions take 2 cycles + * because of the XER dependency. This means the fastest this loop can + * go is 16 cycles per iteration. The scheduling of the loop below has * been shown to hit this on both POWER6 and POWER7. */ .align 5 diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c index 7ce3870d7ddd..defb2998b818 100644 --- a/arch/powerpc/lib/feature-fixups.c +++ b/arch/powerpc/lib/feature-fixups.c @@ -20,7 +20,8 @@ #include <asm/code-patching.h> #include <asm/page.h> #include <asm/sections.h> - +#include <asm/setup.h> +#include <asm/firmware.h> struct fixup_entry { unsigned long mask; @@ -130,7 +131,7 @@ void do_lwsync_fixups(unsigned long value, void *fixup_start, void *fixup_end) } } -void do_final_fixups(void) +static void do_final_fixups(void) { #if defined(CONFIG_PPC64) && defined(CONFIG_RELOCATABLE) int *src, *dest; @@ -151,6 +152,33 @@ void do_final_fixups(void) #endif } +void apply_feature_fixups(void) +{ + struct cpu_spec *spec = *PTRRELOC(&cur_cpu_spec); + + /* + * Apply the CPU-specific and firmware specific fixups to kernel text + * (nop out sections not relevant to this CPU or this firmware). + */ + do_feature_fixups(spec->cpu_features, + PTRRELOC(&__start___ftr_fixup), + PTRRELOC(&__stop___ftr_fixup)); + + do_feature_fixups(spec->mmu_features, + PTRRELOC(&__start___mmu_ftr_fixup), + PTRRELOC(&__stop___mmu_ftr_fixup)); + + do_lwsync_fixups(spec->cpu_features, + PTRRELOC(&__start___lwsync_fixup), + PTRRELOC(&__stop___lwsync_fixup)); + +#ifdef CONFIG_PPC64 + do_feature_fixups(powerpc_firmware_features, + &__start___fw_ftr_fixup, &__stop___fw_ftr_fixup); +#endif + do_final_fixups(); +} + #ifdef CONFIG_FTR_FIXUP_SELFTEST #define check(x) \ diff --git a/arch/powerpc/lib/locks.c b/arch/powerpc/lib/locks.c index f7deebdf3365..b7b1237d4aa6 100644 --- a/arch/powerpc/lib/locks.c +++ b/arch/powerpc/lib/locks.c @@ -68,19 +68,3 @@ void __rw_yield(arch_rwlock_t *rw) get_hard_smp_processor_id(holder_cpu), yield_count); } #endif - -void arch_spin_unlock_wait(arch_spinlock_t *lock) -{ - smp_mb(); - - while (lock->slock) { - HMT_low(); - if (SHARED_PROCESSOR) - __spin_yield(lock); - } - HMT_medium(); - - smp_mb(); -} - -EXPORT_SYMBOL(arch_spin_unlock_wait); diff --git a/arch/powerpc/lib/ppc_ksyms.c b/arch/powerpc/lib/ppc_ksyms.c index c422812f7405..ae69d846a841 100644 --- a/arch/powerpc/lib/ppc_ksyms.c +++ b/arch/powerpc/lib/ppc_ksyms.c @@ -9,11 +9,7 @@ EXPORT_SYMBOL(memmove); EXPORT_SYMBOL(memcmp); EXPORT_SYMBOL(memchr); -EXPORT_SYMBOL(strcpy); EXPORT_SYMBOL(strncpy); -EXPORT_SYMBOL(strcat); -EXPORT_SYMBOL(strlen); -EXPORT_SYMBOL(strcmp); EXPORT_SYMBOL(strncmp); #ifndef CONFIG_GENERIC_CSUM diff --git a/arch/powerpc/lib/rheap.c b/arch/powerpc/lib/rheap.c index 69abf844c2c3..94058c21a482 100644 --- a/arch/powerpc/lib/rheap.c +++ b/arch/powerpc/lib/rheap.c @@ -325,7 +325,7 @@ void rh_init(rh_info_t * info, unsigned int alignment, int max_blocks, } EXPORT_SYMBOL_GPL(rh_init); -/* Attach a free memory region, coalesces regions if adjuscent */ +/* Attach a free memory region, coalesces regions if adjacent */ int rh_attach_region(rh_info_t * info, unsigned long start, int size) { rh_block_t *blk; diff --git a/arch/powerpc/lib/string.S b/arch/powerpc/lib/string.S index c80fb49ce607..beabc68d9a1e 100644 --- a/arch/powerpc/lib/string.S +++ b/arch/powerpc/lib/string.S @@ -16,15 +16,6 @@ PPC_LONG_ALIGN .text -_GLOBAL(strcpy) - addi r5,r3,-1 - addi r4,r4,-1 -1: lbzu r0,1(r4) - cmpwi 0,r0,0 - stbu r0,1(r5) - bne 1b - blr - /* This clears out any unused part of the destination buffer, just as the libc version does. -- paulus */ _GLOBAL(strncpy) @@ -33,6 +24,7 @@ _GLOBAL(strncpy) mtctr r5 addi r6,r3,-1 addi r4,r4,-1 + .balign 16 1: lbzu r0,1(r4) cmpwi 0,r0,0 stbu r0,1(r6) @@ -45,36 +37,13 @@ _GLOBAL(strncpy) bdnz 2b blr -_GLOBAL(strcat) - addi r5,r3,-1 - addi r4,r4,-1 -1: lbzu r0,1(r5) - cmpwi 0,r0,0 - bne 1b - addi r5,r5,-1 -1: lbzu r0,1(r4) - cmpwi 0,r0,0 - stbu r0,1(r5) - bne 1b - blr - -_GLOBAL(strcmp) - addi r5,r3,-1 - addi r4,r4,-1 -1: lbzu r3,1(r5) - cmpwi 1,r3,0 - lbzu r0,1(r4) - subf. r3,r0,r3 - beqlr 1 - beq 1b - blr - _GLOBAL(strncmp) PPC_LCMPI 0,r5,0 beq- 2f mtctr r5 addi r5,r3,-1 addi r4,r4,-1 + .balign 16 1: lbzu r3,1(r5) cmpwi 1,r3,0 lbzu r0,1(r4) @@ -85,14 +54,6 @@ _GLOBAL(strncmp) 2: li r3,0 blr -_GLOBAL(strlen) - addi r4,r3,-1 -1: lbzu r0,1(r4) - cmpwi 0,r0,0 - bne 1b - subf r3,r3,r4 - blr - #ifdef CONFIG_PPC32 _GLOBAL(memcmp) PPC_LCMPI 0,r5,0 @@ -114,6 +75,7 @@ _GLOBAL(memchr) beq- 2f mtctr r5 addi r3,r3,-1 + .balign 16 1: lbzu r0,1(r3) cmpw 0,r0,r4 bdnzf 2,1b diff --git a/arch/powerpc/lib/vmx-helper.c b/arch/powerpc/lib/vmx-helper.c index b27e030fc9f8..bf925cdcaca9 100644 --- a/arch/powerpc/lib/vmx-helper.c +++ b/arch/powerpc/lib/vmx-helper.c @@ -21,6 +21,7 @@ #include <linux/uaccess.h> #include <linux/hardirq.h> #include <asm/switch_to.h> +#include <asm/asm-prototypes.h> int enter_vmx_usercopy(void) { diff --git a/arch/powerpc/mm/8xx_mmu.c b/arch/powerpc/mm/8xx_mmu.c index 949100577db5..6c5025e81236 100644 --- a/arch/powerpc/mm/8xx_mmu.c +++ b/arch/powerpc/mm/8xx_mmu.c @@ -13,62 +13,115 @@ */ #include <linux/memblock.h> +#include <asm/fixmap.h> +#include <asm/code-patching.h> #include "mmu_decl.h" +#define IMMR_SIZE (FIX_IMMR_SIZE << PAGE_SHIFT) + extern int __map_without_ltlbs; + /* - * MMU_init_hw does the chip-specific initialization of the MMU hardware. + * Return PA for this VA if it is in IMMR area, or 0 */ -void __init MMU_init_hw(void) +phys_addr_t v_block_mapped(unsigned long va) { - /* Nothing to do for the time being but keep it similar to other PPC */ + unsigned long p = PHYS_IMMR_BASE; + + if (__map_without_ltlbs) + return 0; + if (va >= VIRT_IMMR_BASE && va < VIRT_IMMR_BASE + IMMR_SIZE) + return p + va - VIRT_IMMR_BASE; + return 0; +} + +/* + * Return VA for a given PA or 0 if not mapped + */ +unsigned long p_block_mapped(phys_addr_t pa) +{ + unsigned long p = PHYS_IMMR_BASE; + + if (__map_without_ltlbs) + return 0; + if (pa >= p && pa < p + IMMR_SIZE) + return VIRT_IMMR_BASE + pa - p; + return 0; } -#define LARGE_PAGE_SIZE_4M (1<<22) #define LARGE_PAGE_SIZE_8M (1<<23) -#define LARGE_PAGE_SIZE_64M (1<<26) -unsigned long __init mmu_mapin_ram(unsigned long top) +/* + * MMU_init_hw does the chip-specific initialization of the MMU hardware. + */ +void __init MMU_init_hw(void) { - unsigned long v, s, mapped; - phys_addr_t p; + /* PIN up to the 3 first 8Mb after IMMR in DTLB table */ +#ifdef CONFIG_PIN_TLB + unsigned long ctr = mfspr(SPRN_MD_CTR) & 0xfe000000; + unsigned long flags = 0xf0 | MD_SPS16K | _PAGE_SHARED | _PAGE_DIRTY; +#ifdef CONFIG_PIN_TLB_IMMR + int i = 29; +#else + int i = 28; +#endif + unsigned long addr = 0; + unsigned long mem = total_lowmem; + + for (; i < 32 && mem >= LARGE_PAGE_SIZE_8M; i++) { + mtspr(SPRN_MD_CTR, ctr | (i << 8)); + mtspr(SPRN_MD_EPN, (unsigned long)__va(addr) | MD_EVALID); + mtspr(SPRN_MD_TWC, MD_PS8MEG | MD_SVALID); + mtspr(SPRN_MD_RPN, addr | flags | _PAGE_PRESENT); + addr += LARGE_PAGE_SIZE_8M; + mem -= LARGE_PAGE_SIZE_8M; + } +#endif +} - v = KERNELBASE; - p = 0; - s = top; +static void mmu_mapin_immr(void) +{ + unsigned long p = PHYS_IMMR_BASE; + unsigned long v = VIRT_IMMR_BASE; + unsigned long f = pgprot_val(PAGE_KERNEL_NCG); + int offset; - if (__map_without_ltlbs) - return 0; + for (offset = 0; offset < IMMR_SIZE; offset += PAGE_SIZE) + map_page(v + offset, p + offset, f); +} -#ifdef CONFIG_PPC_4K_PAGES - while (s >= LARGE_PAGE_SIZE_8M) { - pmd_t *pmdp; - unsigned long val = p | MD_PS8MEG; +/* Address of instructions to patch */ +#ifndef CONFIG_PIN_TLB_IMMR +extern unsigned int DTLBMiss_jmp; +#endif +extern unsigned int DTLBMiss_cmp, FixupDAR_cmp; - pmdp = pmd_offset(pud_offset(pgd_offset_k(v), v), v); - *pmdp++ = __pmd(val); - *pmdp++ = __pmd(val + LARGE_PAGE_SIZE_4M); +void mmu_patch_cmp_limit(unsigned int *addr, unsigned long mapped) +{ + unsigned int instr = *addr; - v += LARGE_PAGE_SIZE_8M; - p += LARGE_PAGE_SIZE_8M; - s -= LARGE_PAGE_SIZE_8M; - } -#else /* CONFIG_PPC_16K_PAGES */ - while (s >= LARGE_PAGE_SIZE_64M) { - pmd_t *pmdp; - unsigned long val = p | MD_PS8MEG; + instr &= 0xffff0000; + instr |= (unsigned long)__va(mapped) >> 16; + patch_instruction(addr, instr); +} - pmdp = pmd_offset(pud_offset(pgd_offset_k(v), v), v); - *pmdp++ = __pmd(val); +unsigned long __init mmu_mapin_ram(unsigned long top) +{ + unsigned long mapped; - v += LARGE_PAGE_SIZE_64M; - p += LARGE_PAGE_SIZE_64M; - s -= LARGE_PAGE_SIZE_64M; - } + if (__map_without_ltlbs) { + mapped = 0; + mmu_mapin_immr(); +#ifndef CONFIG_PIN_TLB_IMMR + patch_instruction(&DTLBMiss_jmp, PPC_INST_NOP); #endif + } else { + mapped = top & ~(LARGE_PAGE_SIZE_8M - 1); + } - mapped = top - s; + mmu_patch_cmp_limit(&DTLBMiss_cmp, mapped); + mmu_patch_cmp_limit(&FixupDAR_cmp, mapped); /* If the size of RAM is not an exact power of two, we may not * have covered RAM in its entirety with 8 MiB @@ -77,7 +130,8 @@ unsigned long __init mmu_mapin_ram(unsigned long top) * coverage with normal-sized pages (or other reasons) do not * attempt to allocate outside the allowed range. */ - memblock_set_current_limit(mapped); + if (mapped) + memblock_set_current_limit(mapped); return mapped; } @@ -90,13 +144,8 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base, */ BUG_ON(first_memblock_base != 0); -#ifdef CONFIG_PIN_TLB /* 8xx can only access 24MB at the moment */ memblock_set_current_limit(min_t(u64, first_memblock_size, 0x01800000)); -#else - /* 8xx can only access 8MB at the moment */ - memblock_set_current_limit(min_t(u64, first_memblock_size, 0x00800000)); -#endif } /* diff --git a/arch/powerpc/mm/hash64_4k.c b/arch/powerpc/mm/hash64_4k.c index 6333b273d2d5..42c702b3be1f 100644 --- a/arch/powerpc/mm/hash64_4k.c +++ b/arch/powerpc/mm/hash64_4k.c @@ -70,8 +70,8 @@ int __hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid, slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += (old_pte & H_PAGE_F_GIX) >> H_PAGE_F_GIX_SHIFT; - if (ppc_md.hpte_updatepp(slot, rflags, vpn, MMU_PAGE_4K, - MMU_PAGE_4K, ssize, flags) == -1) + if (mmu_hash_ops.hpte_updatepp(slot, rflags, vpn, MMU_PAGE_4K, + MMU_PAGE_4K, ssize, flags) == -1) old_pte &= ~_PAGE_HPTEFLAGS; } @@ -84,21 +84,23 @@ repeat: hpte_group = ((hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; /* Insert into the hash table, primary slot */ - slot = ppc_md.hpte_insert(hpte_group, vpn, pa, rflags, 0, - MMU_PAGE_4K, MMU_PAGE_4K, ssize); + slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, rflags, 0, + MMU_PAGE_4K, MMU_PAGE_4K, ssize); /* * Primary is full, try the secondary */ if (unlikely(slot == -1)) { hpte_group = ((~hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; - slot = ppc_md.hpte_insert(hpte_group, vpn, pa, - rflags, HPTE_V_SECONDARY, - MMU_PAGE_4K, MMU_PAGE_4K, ssize); + slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, + rflags, + HPTE_V_SECONDARY, + MMU_PAGE_4K, + MMU_PAGE_4K, ssize); if (slot == -1) { if (mftb() & 0x1) hpte_group = ((hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; - ppc_md.hpte_remove(hpte_group); + mmu_hash_ops.hpte_remove(hpte_group); /* * FIXME!! Should be try the group from which we removed ? */ diff --git a/arch/powerpc/mm/hash64_64k.c b/arch/powerpc/mm/hash64_64k.c index 16644e1f4e6b..3bbbea07378c 100644 --- a/arch/powerpc/mm/hash64_64k.c +++ b/arch/powerpc/mm/hash64_64k.c @@ -133,9 +133,9 @@ int __hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid, slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += hidx & _PTEIDX_GROUP_IX; - ret = ppc_md.hpte_updatepp(slot, rflags, vpn, - MMU_PAGE_4K, MMU_PAGE_4K, - ssize, flags); + ret = mmu_hash_ops.hpte_updatepp(slot, rflags, vpn, + MMU_PAGE_4K, MMU_PAGE_4K, + ssize, flags); /* *if we failed because typically the HPTE wasn't really here * we try an insertion. @@ -166,21 +166,22 @@ repeat: hpte_group = ((hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; /* Insert into the hash table, primary slot */ - slot = ppc_md.hpte_insert(hpte_group, vpn, pa, rflags, 0, - MMU_PAGE_4K, MMU_PAGE_4K, ssize); + slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, rflags, 0, + MMU_PAGE_4K, MMU_PAGE_4K, ssize); /* * Primary is full, try the secondary */ if (unlikely(slot == -1)) { hpte_group = ((~hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; - slot = ppc_md.hpte_insert(hpte_group, vpn, pa, - rflags, HPTE_V_SECONDARY, - MMU_PAGE_4K, MMU_PAGE_4K, ssize); + slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, + rflags, HPTE_V_SECONDARY, + MMU_PAGE_4K, MMU_PAGE_4K, + ssize); if (slot == -1) { if (mftb() & 0x1) hpte_group = ((hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; - ppc_md.hpte_remove(hpte_group); + mmu_hash_ops.hpte_remove(hpte_group); /* * FIXME!! Should be try the group from which we removed ? */ @@ -272,8 +273,9 @@ int __hash_page_64K(unsigned long ea, unsigned long access, slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += (old_pte & H_PAGE_F_GIX) >> H_PAGE_F_GIX_SHIFT; - if (ppc_md.hpte_updatepp(slot, rflags, vpn, MMU_PAGE_64K, - MMU_PAGE_64K, ssize, flags) == -1) + if (mmu_hash_ops.hpte_updatepp(slot, rflags, vpn, MMU_PAGE_64K, + MMU_PAGE_64K, ssize, + flags) == -1) old_pte &= ~_PAGE_HPTEFLAGS; } @@ -286,21 +288,24 @@ repeat: hpte_group = ((hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; /* Insert into the hash table, primary slot */ - slot = ppc_md.hpte_insert(hpte_group, vpn, pa, rflags, 0, - MMU_PAGE_64K, MMU_PAGE_64K, ssize); + slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, rflags, 0, + MMU_PAGE_64K, MMU_PAGE_64K, + ssize); /* * Primary is full, try the secondary */ if (unlikely(slot == -1)) { hpte_group = ((~hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; - slot = ppc_md.hpte_insert(hpte_group, vpn, pa, - rflags, HPTE_V_SECONDARY, - MMU_PAGE_64K, MMU_PAGE_64K, ssize); + slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, + rflags, + HPTE_V_SECONDARY, + MMU_PAGE_64K, + MMU_PAGE_64K, ssize); if (slot == -1) { if (mftb() & 0x1) hpte_group = ((hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; - ppc_md.hpte_remove(hpte_group); + mmu_hash_ops.hpte_remove(hpte_group); /* * FIXME!! Should be try the group from which we removed ? */ diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index f8a871a72985..88ce7d212320 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c @@ -55,7 +55,7 @@ static inline void __tlbie(unsigned long vpn, int psize, int apsize, int ssize) * We need 14 to 65 bits of va for a tlibe of 4K page * With vpn we ignore the lower VPN_SHIFT bits already. * And top two bits are already ignored because we can - * only accomadate 76 bits in a 64 bit vpn with a VPN_SHIFT + * only accomodate 76 bits in a 64 bit vpn with a VPN_SHIFT * of 12. */ va = vpn << VPN_SHIFT; @@ -64,7 +64,8 @@ static inline void __tlbie(unsigned long vpn, int psize, int apsize, int ssize) * Older versions of the architecture (2.02 and earler) require the * masking of the top 16 bits. */ - va &= ~(0xffffULL << 48); + if (mmu_has_feature(MMU_FTR_TLBIE_CROP_VA)) + va &= ~(0xffffULL << 48); switch (psize) { case MMU_PAGE_4K: @@ -113,7 +114,8 @@ static inline void __tlbiel(unsigned long vpn, int psize, int apsize, int ssize) * Older versions of the architecture (2.02 and earler) require the * masking of the top 16 bits. */ - va &= ~(0xffffULL << 48); + if (mmu_has_feature(MMU_FTR_TLBIE_CROP_VA)) + va &= ~(0xffffULL << 48); switch (psize) { case MMU_PAGE_4K: @@ -605,7 +607,7 @@ static void hpte_decode(struct hash_pte *hpte, unsigned long slot, * crashdump and all bets are off anyway. * * TODO: add batching support when enabled. remember, no dynamic memory here, - * athough there is the control page available... + * although there is the control page available... */ static void native_hpte_clear(void) { @@ -723,23 +725,29 @@ static void native_flush_hash_range(unsigned long number, int local) local_irq_restore(flags); } -static int native_update_partition_table(u64 patb1) +static int native_register_proc_table(unsigned long base, unsigned long page_size, + unsigned long table_size) { + unsigned long patb1 = base << 25; /* VSID */ + + patb1 |= (page_size << 5); /* sllp */ + patb1 |= table_size; + partition_tb->patb1 = cpu_to_be64(patb1); return 0; } void __init hpte_init_native(void) { - ppc_md.hpte_invalidate = native_hpte_invalidate; - ppc_md.hpte_updatepp = native_hpte_updatepp; - ppc_md.hpte_updateboltedpp = native_hpte_updateboltedpp; - ppc_md.hpte_insert = native_hpte_insert; - ppc_md.hpte_remove = native_hpte_remove; - ppc_md.hpte_clear_all = native_hpte_clear; - ppc_md.flush_hash_range = native_flush_hash_range; - ppc_md.hugepage_invalidate = native_hugepage_invalidate; + mmu_hash_ops.hpte_invalidate = native_hpte_invalidate; + mmu_hash_ops.hpte_updatepp = native_hpte_updatepp; + mmu_hash_ops.hpte_updateboltedpp = native_hpte_updateboltedpp; + mmu_hash_ops.hpte_insert = native_hpte_insert; + mmu_hash_ops.hpte_remove = native_hpte_remove; + mmu_hash_ops.hpte_clear_all = native_hpte_clear; + mmu_hash_ops.flush_hash_range = native_flush_hash_range; + mmu_hash_ops.hugepage_invalidate = native_hugepage_invalidate; if (cpu_has_feature(CPU_FTR_ARCH_300)) - ppc_md.update_partition_table = native_update_partition_table; + ppc_md.register_process_table = native_register_proc_table; } diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 2971ea18c768..b78b5d211278 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -34,6 +34,7 @@ #include <linux/signal.h> #include <linux/memblock.h> #include <linux/context_tracking.h> +#include <linux/libfdt.h> #include <asm/processor.h> #include <asm/pgtable.h> @@ -58,6 +59,7 @@ #include <asm/firmware.h> #include <asm/tm.h> #include <asm/trace.h> +#include <asm/ps3.h> #ifdef DEBUG #define DBG(fmt...) udbg_printf(fmt) @@ -87,10 +89,6 @@ * */ -#ifdef CONFIG_U3_DART -extern unsigned long dart_tablebase; -#endif /* CONFIG_U3_DART */ - static unsigned long _SDR1; struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT]; EXPORT_SYMBOL_GPL(mmu_psize_defs); @@ -120,6 +118,8 @@ static u8 *linear_map_hash_slots; static unsigned long linear_map_hash_count; static DEFINE_SPINLOCK(linear_map_hash_lock); #endif /* CONFIG_DEBUG_PAGEALLOC */ +struct mmu_hash_ops mmu_hash_ops; +EXPORT_SYMBOL(mmu_hash_ops); /* There are definitions of page sizes arrays to be used when none * is provided by the firmware. @@ -278,9 +278,10 @@ int htab_bolt_mapping(unsigned long vstart, unsigned long vend, hash = hpt_hash(vpn, shift, ssize); hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP); - BUG_ON(!ppc_md.hpte_insert); - ret = ppc_md.hpte_insert(hpteg, vpn, paddr, tprot, - HPTE_V_BOLTED, psize, psize, ssize); + BUG_ON(!mmu_hash_ops.hpte_insert); + ret = mmu_hash_ops.hpte_insert(hpteg, vpn, paddr, tprot, + HPTE_V_BOLTED, psize, psize, + ssize); if (ret < 0) break; @@ -305,11 +306,11 @@ int htab_remove_mapping(unsigned long vstart, unsigned long vend, shift = mmu_psize_defs[psize].shift; step = 1 << shift; - if (!ppc_md.hpte_removebolted) + if (!mmu_hash_ops.hpte_removebolted) return -ENODEV; for (vaddr = vstart; vaddr < vend; vaddr += step) { - rc = ppc_md.hpte_removebolted(vaddr, psize, ssize); + rc = mmu_hash_ops.hpte_removebolted(vaddr, psize, ssize); if (rc == -ENOENT) { ret = -ENOENT; continue; @@ -321,6 +322,15 @@ int htab_remove_mapping(unsigned long vstart, unsigned long vend, return ret; } +static bool disable_1tb_segments = false; + +static int __init parse_disable_1tb_segments(char *p) +{ + disable_1tb_segments = true; + return 0; +} +early_param("disable_1tb_segments", parse_disable_1tb_segments); + static int __init htab_dt_scan_seg_sizes(unsigned long node, const char *uname, int depth, void *data) @@ -339,6 +349,12 @@ static int __init htab_dt_scan_seg_sizes(unsigned long node, for (; size >= 4; size -= 4, ++prop) { if (be32_to_cpu(prop[0]) == 40) { DBG("1T segment support detected\n"); + + if (disable_1tb_segments) { + DBG("1T segments disabled by command line\n"); + break; + } + cur_cpu_spec->mmu_features |= MMU_FTR_1T_SEGMENT; return 1; } @@ -514,7 +530,8 @@ static bool might_have_hea(void) * we will never see an HEA ethernet device. */ #ifdef CONFIG_IBMEBUS - return !cpu_has_feature(CPU_FTR_ARCH_207S); + return !cpu_has_feature(CPU_FTR_ARCH_207S) && + !firmware_has_feature(FW_FEATURE_SPLPAR); #else return false; #endif @@ -580,7 +597,7 @@ found: * would stop us accessing the HEA ethernet. So if we * have the chance of ever seeing one, stay at 4k. */ - if (!might_have_hea() || !machine_is(pseries)) + if (!might_have_hea()) mmu_io_psize = MMU_PAGE_64K; } else mmu_ci_restrictions = 1; @@ -699,10 +716,9 @@ int remove_section_mapping(unsigned long start, unsigned long end) #endif /* CONFIG_MEMORY_HOTPLUG */ static void __init hash_init_partition_table(phys_addr_t hash_table, - unsigned long pteg_count) + unsigned long htab_size) { unsigned long ps_field; - unsigned long htab_size; unsigned long patb_size = 1UL << PATB_SIZE_SHIFT; /* @@ -710,7 +726,7 @@ static void __init hash_init_partition_table(phys_addr_t hash_table, * We can ignore that for lpid 0 */ ps_field = 0; - htab_size = __ilog2(pteg_count) - 11; + htab_size = __ilog2(htab_size) - 18; BUILD_BUG_ON_MSG((PATB_SIZE_SHIFT > 24), "Partition table size too large."); partition_tb = __va(memblock_alloc_base(patb_size, patb_size, @@ -724,7 +740,7 @@ static void __init hash_init_partition_table(phys_addr_t hash_table, * For now UPRT is 0 for us. */ partition_tb->patb1 = 0; - DBG("Partition table %p\n", partition_tb); + pr_info("Partition table %p\n", partition_tb); /* * update partition table control register, * 64 K size. @@ -738,7 +754,7 @@ static void __init htab_initialize(void) unsigned long table; unsigned long pteg_count; unsigned long prot; - unsigned long base = 0, size = 0, limit; + unsigned long base = 0, size = 0; struct memblock_region *reg; DBG(" -> htab_initialize()\n"); @@ -764,7 +780,8 @@ static void __init htab_initialize(void) htab_hash_mask = pteg_count - 1; - if (firmware_has_feature(FW_FEATURE_LPAR)) { + if (firmware_has_feature(FW_FEATURE_LPAR) || + firmware_has_feature(FW_FEATURE_PS3_LV1)) { /* Using a hypervisor which owns the htab */ htab_address = NULL; _SDR1 = 0; @@ -775,20 +792,26 @@ static void __init htab_initialize(void) * Clear the htab if firmware assisted dump is active so * that we dont end up using old mappings. */ - if (is_fadump_active() && ppc_md.hpte_clear_all) - ppc_md.hpte_clear_all(); + if (is_fadump_active() && mmu_hash_ops.hpte_clear_all) + mmu_hash_ops.hpte_clear_all(); #endif } else { - /* Find storage for the HPT. Must be contiguous in - * the absolute address space. On cell we want it to be - * in the first 2 Gig so we can use it for IOMMU hacks. + unsigned long limit = MEMBLOCK_ALLOC_ANYWHERE; + +#ifdef CONFIG_PPC_CELL + /* + * Cell may require the hash table down low when using the + * Axon IOMMU in order to fit the dynamic region over it, see + * comments in cell/iommu.c */ - if (machine_is(cell)) + if (fdt_subnode_offset(initial_boot_params, 0, "axon") > 0) { limit = 0x80000000; - else - limit = MEMBLOCK_ALLOC_ANYWHERE; + pr_info("Hash table forced below 2G for Axon IOMMU\n"); + } +#endif /* CONFIG_PPC_CELL */ - table = memblock_alloc_base(htab_size_bytes, htab_size_bytes, limit); + table = memblock_alloc_base(htab_size_bytes, htab_size_bytes, + limit); DBG("Hash table allocated at %lx, size: %lx\n", table, htab_size_bytes); @@ -796,7 +819,7 @@ static void __init htab_initialize(void) htab_address = __va(table); /* htab absolute addr + encoded htabsize */ - _SDR1 = table + __ilog2(pteg_count) - 11; + _SDR1 = table + __ilog2(htab_size_bytes) - 18; /* Initialize the HPT with no entries */ memset((void *)table, 0, htab_size_bytes); @@ -805,7 +828,7 @@ static void __init htab_initialize(void) /* Set SDR1 */ mtspr(SPRN_SDR1, _SDR1); else - hash_init_partition_table(table, pteg_count); + hash_init_partition_table(table, htab_size_bytes); } prot = pgprot_val(PAGE_KERNEL); @@ -832,34 +855,6 @@ static void __init htab_initialize(void) DBG("creating mapping for region: %lx..%lx (prot: %lx)\n", base, size, prot); -#ifdef CONFIG_U3_DART - /* Do not map the DART space. Fortunately, it will be aligned - * in such a way that it will not cross two memblock regions and - * will fit within a single 16Mb page. - * The DART space is assumed to be a full 16Mb region even if - * we only use 2Mb of that space. We will use more of it later - * for AGP GART. We have to use a full 16Mb large page. - */ - DBG("DART base: %lx\n", dart_tablebase); - - if (dart_tablebase != 0 && dart_tablebase >= base - && dart_tablebase < (base + size)) { - unsigned long dart_table_end = dart_tablebase + 16 * MB; - if (base != dart_tablebase) - BUG_ON(htab_bolt_mapping(base, dart_tablebase, - __pa(base), prot, - mmu_linear_psize, - mmu_kernel_ssize)); - if ((base + size) > dart_table_end) - BUG_ON(htab_bolt_mapping(dart_tablebase+16*MB, - base + size, - __pa(dart_table_end), - prot, - mmu_linear_psize, - mmu_kernel_ssize)); - continue; - } -#endif /* CONFIG_U3_DART */ BUG_ON(htab_bolt_mapping(base, base + size, __pa(base), prot, mmu_linear_psize, mmu_kernel_ssize)); } @@ -926,12 +921,24 @@ void __init hash__early_init_mmu(void) pci_io_base = ISA_IO_BASE; #endif + /* Select appropriate backend */ + if (firmware_has_feature(FW_FEATURE_PS3_LV1)) + ps3_early_mm_init(); + else if (firmware_has_feature(FW_FEATURE_LPAR)) + hpte_init_pseries(); + else if (IS_ENABLED(CONFIG_PPC_NATIVE)) + hpte_init_native(); + + if (!mmu_hash_ops.hpte_insert) + panic("hash__early_init_mmu: No MMU hash ops defined!\n"); + /* Initialize the MMU Hash table and create the linear mapping * of memory. Has to be done before SLB initialization as this is * currently where the page size encoding is obtained. */ htab_initialize(); + pr_info("Initializing hash mmu with SLB\n"); /* Initialize SLB management */ slb_initialize(); } @@ -1474,7 +1481,8 @@ void flush_hash_page(unsigned long vpn, real_pte_t pte, int psize, int ssize, * We use same base page size and actual psize, because we don't * use these functions for hugepage */ - ppc_md.hpte_invalidate(slot, vpn, psize, psize, ssize, local); + mmu_hash_ops.hpte_invalidate(slot, vpn, psize, psize, + ssize, local); } pte_iterate_hashed_end(); #ifdef CONFIG_PPC_TRANSACTIONAL_MEM @@ -1515,9 +1523,9 @@ void flush_hash_hugepage(unsigned long vsid, unsigned long addr, if (!hpte_slot_array) return; - if (ppc_md.hugepage_invalidate) { - ppc_md.hugepage_invalidate(vsid, s_addr, hpte_slot_array, - psize, ssize, local); + if (mmu_hash_ops.hugepage_invalidate) { + mmu_hash_ops.hugepage_invalidate(vsid, s_addr, hpte_slot_array, + psize, ssize, local); goto tm_abort; } /* @@ -1544,8 +1552,8 @@ void flush_hash_hugepage(unsigned long vsid, unsigned long addr, slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += hidx & _PTEIDX_GROUP_IX; - ppc_md.hpte_invalidate(slot, vpn, psize, - MMU_PAGE_16M, ssize, local); + mmu_hash_ops.hpte_invalidate(slot, vpn, psize, + MMU_PAGE_16M, ssize, local); } tm_abort: #ifdef CONFIG_PPC_TRANSACTIONAL_MEM @@ -1569,8 +1577,8 @@ tm_abort: void flush_hash_range(unsigned long number, int local) { - if (ppc_md.flush_hash_range) - ppc_md.flush_hash_range(number, local); + if (mmu_hash_ops.flush_hash_range) + mmu_hash_ops.flush_hash_range(number, local); else { int i; struct ppc64_tlb_batch *batch = @@ -1615,22 +1623,22 @@ repeat: HPTES_PER_GROUP) & ~0x7UL; /* Insert into the hash table, primary slot */ - slot = ppc_md.hpte_insert(hpte_group, vpn, pa, rflags, vflags, - psize, psize, ssize); + slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, rflags, vflags, + psize, psize, ssize); /* Primary is full, try the secondary */ if (unlikely(slot == -1)) { hpte_group = ((~hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; - slot = ppc_md.hpte_insert(hpte_group, vpn, pa, rflags, - vflags | HPTE_V_SECONDARY, - psize, psize, ssize); + slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, rflags, + vflags | HPTE_V_SECONDARY, + psize, psize, ssize); if (slot == -1) { if (mftb() & 0x1) hpte_group = ((hash & htab_hash_mask) * HPTES_PER_GROUP)&~0x7UL; - ppc_md.hpte_remove(hpte_group); + mmu_hash_ops.hpte_remove(hpte_group); goto repeat; } } @@ -1680,8 +1688,9 @@ static void kernel_unmap_linear_page(unsigned long vaddr, unsigned long lmi) hash = ~hash; slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += hidx & _PTEIDX_GROUP_IX; - ppc_md.hpte_invalidate(slot, vpn, mmu_linear_psize, mmu_linear_psize, - mmu_kernel_ssize, 0); + mmu_hash_ops.hpte_invalidate(slot, vpn, mmu_linear_psize, + mmu_linear_psize, + mmu_kernel_ssize, 0); } void __kernel_map_pages(struct page *page, int numpages, int enable) diff --git a/arch/powerpc/mm/hugepage-hash64.c b/arch/powerpc/mm/hugepage-hash64.c index ba3fc229468a..f20d16f849c5 100644 --- a/arch/powerpc/mm/hugepage-hash64.c +++ b/arch/powerpc/mm/hugepage-hash64.c @@ -103,8 +103,8 @@ int __hash_page_thp(unsigned long ea, unsigned long access, unsigned long vsid, slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += hidx & _PTEIDX_GROUP_IX; - ret = ppc_md.hpte_updatepp(slot, rflags, vpn, - psize, lpsize, ssize, flags); + ret = mmu_hash_ops.hpte_updatepp(slot, rflags, vpn, + psize, lpsize, ssize, flags); /* * We failed to update, try to insert a new entry. */ @@ -131,23 +131,24 @@ repeat: hpte_group = ((hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; /* Insert into the hash table, primary slot */ - slot = ppc_md.hpte_insert(hpte_group, vpn, pa, rflags, 0, - psize, lpsize, ssize); + slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, rflags, 0, + psize, lpsize, ssize); /* * Primary is full, try the secondary */ if (unlikely(slot == -1)) { hpte_group = ((~hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; - slot = ppc_md.hpte_insert(hpte_group, vpn, pa, - rflags, HPTE_V_SECONDARY, - psize, lpsize, ssize); + slot = mmu_hash_ops.hpte_insert(hpte_group, vpn, pa, + rflags, + HPTE_V_SECONDARY, + psize, lpsize, ssize); if (slot == -1) { if (mftb() & 0x1) hpte_group = ((hash & htab_hash_mask) * HPTES_PER_GROUP) & ~0x7UL; - ppc_md.hpte_remove(hpte_group); + mmu_hash_ops.hpte_remove(hpte_group); goto repeat; } } diff --git a/arch/powerpc/mm/hugetlbpage-hash64.c b/arch/powerpc/mm/hugetlbpage-hash64.c index 3058560b6121..d5026f3800b6 100644 --- a/arch/powerpc/mm/hugetlbpage-hash64.c +++ b/arch/powerpc/mm/hugetlbpage-hash64.c @@ -79,8 +79,8 @@ int __hash_page_huge(unsigned long ea, unsigned long access, unsigned long vsid, slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; slot += (old_pte & H_PAGE_F_GIX) >> H_PAGE_F_GIX_SHIFT; - if (ppc_md.hpte_updatepp(slot, rflags, vpn, mmu_psize, - mmu_psize, ssize, flags) == -1) + if (mmu_hash_ops.hpte_updatepp(slot, rflags, vpn, mmu_psize, + mmu_psize, ssize, flags) == -1) old_pte &= ~_PAGE_HPTEFLAGS; } diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index 119d18611500..7372ee13eb1e 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -81,6 +81,13 @@ static int __hugepte_alloc(struct mm_struct *mm, hugepd_t *hpdp, if (! new) return -ENOMEM; + /* + * Make sure other cpus find the hugepd set only after a + * properly initialized page table is visible to them. + * For more details look for comment in __pte_alloc(). + */ + smp_wmb(); + spin_lock(&mm->page_table_lock); #ifdef CONFIG_PPC_FSL_BOOK3E /* diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c index c899fe340bbd..448685fbf27c 100644 --- a/arch/powerpc/mm/init_32.c +++ b/arch/powerpc/mm/init_32.c @@ -64,7 +64,7 @@ EXPORT_SYMBOL(memstart_addr); phys_addr_t kernstart_addr; EXPORT_SYMBOL(kernstart_addr); -#ifdef CONFIG_RELOCATABLE_PPC32 +#ifdef CONFIG_RELOCATABLE /* Used in __va()/__pa() */ long long virt_phys_offset; EXPORT_SYMBOL(virt_phys_offset); @@ -80,9 +80,6 @@ EXPORT_SYMBOL(agp_special_page); void MMU_init(void); -/* XXX should be in current.h -- paulus */ -extern struct task_struct *current_set[NR_CPUS]; - /* * this tells the system to map all of ram with the segregs * (i.e. page tables) instead of the bats. diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 2fd57fa48429..5f844337de21 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -116,6 +116,16 @@ int memory_add_physaddr_to_nid(u64 start) } #endif +int __weak create_section_mapping(unsigned long start, unsigned long end) +{ + return -ENODEV; +} + +int __weak remove_section_mapping(unsigned long start, unsigned long end) +{ + return -ENODEV; +} + int arch_add_memory(int nid, u64 start, u64 size, bool for_device) { struct pglist_data *pgdata; @@ -239,8 +249,14 @@ static int __init mark_nonram_nosave(void) static bool zone_limits_final; +/* + * The memory zones past TOP_ZONE are managed by generic mm code. + * These should be set to zero since that's what every other + * architecture does. + */ static unsigned long max_zone_pfns[MAX_NR_ZONES] = { - [0 ... MAX_NR_ZONES - 1] = ~0UL + [0 ... TOP_ZONE ] = ~0UL, + [TOP_ZONE + 1 ... MAX_NR_ZONES - 1] = 0 }; /* diff --git a/arch/powerpc/mm/mmu_context_book3s64.c b/arch/powerpc/mm/mmu_context_book3s64.c index 196222227e82..b114f8b93ec9 100644 --- a/arch/powerpc/mm/mmu_context_book3s64.c +++ b/arch/powerpc/mm/mmu_context_book3s64.c @@ -181,7 +181,10 @@ void destroy_context(struct mm_struct *mm) #ifdef CONFIG_PPC_RADIX_MMU void radix__switch_mmu_context(struct mm_struct *prev, struct mm_struct *next) { - mtspr(SPRN_PID, next->context.id); asm volatile("isync": : :"memory"); + mtspr(SPRN_PID, next->context.id); + asm volatile("isync \n" + PPC_SLBIA(0x7) + : : :"memory"); } #endif diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h index 6af65327c993..f988db655e5b 100644 --- a/arch/powerpc/mm/mmu_decl.h +++ b/arch/powerpc/mm/mmu_decl.h @@ -154,9 +154,10 @@ struct tlbcam { }; #endif -#if defined(CONFIG_6xx) || defined(CONFIG_FSL_BOOKE) +#if defined(CONFIG_6xx) || defined(CONFIG_FSL_BOOKE) || defined(CONFIG_PPC_8xx) /* 6xx have BATS */ /* FSL_BOOKE have TLBCAM */ +/* 8xx have LTLB */ phys_addr_t v_block_mapped(unsigned long va); unsigned long p_block_mapped(phys_addr_t pa); #else diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 6dc07ddbfd04..75b9cd6150cc 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -1153,18 +1153,34 @@ int hot_add_scn_to_nid(unsigned long scn_addr) static u64 hot_add_drconf_memory_max(void) { - struct device_node *memory = NULL; - unsigned int drconf_cell_cnt = 0; - u64 lmb_size = 0; + struct device_node *memory = NULL; + struct device_node *dn = NULL; + unsigned int drconf_cell_cnt = 0; + u64 lmb_size = 0; const __be32 *dm = NULL; + const __be64 *lrdr = NULL; + struct of_drconf_cell drmem; + + dn = of_find_node_by_path("/rtas"); + if (dn) { + lrdr = of_get_property(dn, "ibm,lrdr-capacity", NULL); + of_node_put(dn); + if (lrdr) + return be64_to_cpup(lrdr); + } + + memory = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory"); + if (memory) { + drconf_cell_cnt = of_get_drconf_memory(memory, &dm); + lmb_size = of_get_lmb_size(memory); - memory = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory"); - if (memory) { - drconf_cell_cnt = of_get_drconf_memory(memory, &dm); - lmb_size = of_get_lmb_size(memory); - of_node_put(memory); - } - return lmb_size * drconf_cell_cnt; + /* Advance to the last cell, each cell has 6 32 bit integers */ + dm += (drconf_cell_cnt - 1) * 6; + read_drconf_cell(&drmem, &dm); + of_node_put(memory); + return drmem.base_addr + lmb_size; + } + return 0; } /* diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c index 7931e1496f0d..003ff48a11b6 100644 --- a/arch/powerpc/mm/pgtable-radix.c +++ b/arch/powerpc/mm/pgtable-radix.c @@ -21,8 +21,11 @@ #include <trace/events/thp.h> -static int native_update_partition_table(u64 patb1) +static int native_register_process_table(unsigned long base, unsigned long pg_sz, + unsigned long table_size) { + unsigned long patb1 = base | table_size | PATB_GR; + partition_tb->patb1 = cpu_to_be64(patb1); return 0; } @@ -168,7 +171,7 @@ redo: * of process table here. But our linear mapping also enable us to use * physical address here. */ - ppc_md.update_partition_table(__pa(process_tb) | (PRTB_SIZE_SHIFT - 12) | PATB_GR); + ppc_md.register_process_table(__pa(process_tb), 0, PRTB_SIZE_SHIFT - 12); pr_info("Process table %p and radix root for kernel: %p\n", process_tb, init_mm.pgd); } @@ -182,7 +185,8 @@ static void __init radix_init_partition_table(void) partition_tb = early_alloc_pgtable(1UL << PATB_SIZE_SHIFT); partition_tb->patb0 = cpu_to_be64(rts_field | __pa(init_mm.pgd) | RADIX_PGD_INDEX_SIZE | PATB_HR); - printk("Partition table %p\n", partition_tb); + pr_info("Initializing Radix MMU\n"); + pr_info("Partition table %p\n", partition_tb); memblock_set_current_limit(MEMBLOCK_ALLOC_ANYWHERE); /* @@ -194,7 +198,7 @@ static void __init radix_init_partition_table(void) void __init radix_init_native(void) { - ppc_md.update_partition_table = native_update_partition_table; + ppc_md.register_process_table = native_register_process_table; } static int __init get_idx_from_shift(unsigned int shift) @@ -341,8 +345,9 @@ void __init radix__early_init_mmu(void) radix_init_page_sizes(); if (!firmware_has_feature(FW_FEATURE_LPAR)) { + radix_init_native(); lpcr = mfspr(SPRN_LPCR); - mtspr(SPRN_LPCR, lpcr | LPCR_UPRT); + mtspr(SPRN_LPCR, lpcr | LPCR_UPRT | LPCR_HR); radix_init_partition_table(); } @@ -357,7 +362,7 @@ void radix__early_init_mmu_secondary(void) */ if (!firmware_has_feature(FW_FEATURE_LPAR)) { lpcr = mfspr(SPRN_LPCR); - mtspr(SPRN_LPCR, lpcr | LPCR_UPRT); + mtspr(SPRN_LPCR, lpcr | LPCR_UPRT | LPCR_HR); mtspr(SPRN_PTCR, __pa(partition_tb) | (PATB_SIZE_SHIFT - 12)); diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c index ab2f60e812e2..e1f22700fb16 100644 --- a/arch/powerpc/mm/tlb-radix.c +++ b/arch/powerpc/mm/tlb-radix.c @@ -12,6 +12,7 @@ #include <linux/mm.h> #include <linux/hugetlb.h> #include <linux/memblock.h> +#include <asm/ppc-opcode.h> #include <asm/tlb.h> #include <asm/tlbflush.h> @@ -34,8 +35,7 @@ static inline void __tlbiel_pid(unsigned long pid, int set, r = 1; /* raidx format */ asm volatile("ptesync": : :"memory"); - asm volatile(".long 0x7c000224 | (%0 << 11) | (%1 << 16) |" - "(%2 << 17) | (%3 << 18) | (%4 << 21)" + asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1) : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory"); asm volatile("ptesync": : :"memory"); } @@ -63,8 +63,7 @@ static inline void _tlbie_pid(unsigned long pid, unsigned long ric) r = 1; /* raidx format */ asm volatile("ptesync": : :"memory"); - asm volatile(".long 0x7c000264 | (%0 << 11) | (%1 << 16) |" - "(%2 << 17) | (%3 << 18) | (%4 << 21)" + asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1) : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory"); asm volatile("eieio; tlbsync; ptesync": : :"memory"); } @@ -81,8 +80,7 @@ static inline void _tlbiel_va(unsigned long va, unsigned long pid, r = 1; /* raidx format */ asm volatile("ptesync": : :"memory"); - asm volatile(".long 0x7c000224 | (%0 << 11) | (%1 << 16) |" - "(%2 << 17) | (%3 << 18) | (%4 << 21)" + asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1) : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory"); asm volatile("ptesync": : :"memory"); } @@ -99,8 +97,7 @@ static inline void _tlbie_va(unsigned long va, unsigned long pid, r = 1; /* raidx format */ asm volatile("ptesync": : :"memory"); - asm volatile(".long 0x7c000264 | (%0 << 11) | (%1 << 16) |" - "(%2 << 17) | (%3 << 18) | (%4 << 21)" + asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1) : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory"); asm volatile("eieio; tlbsync; ptesync": : :"memory"); } @@ -285,9 +282,61 @@ void radix__flush_tlb_range(struct vm_area_struct *vma, unsigned long start, } EXPORT_SYMBOL(radix__flush_tlb_range); +static int radix_get_mmu_psize(int page_size) +{ + int psize; + + if (page_size == (1UL << mmu_psize_defs[mmu_virtual_psize].shift)) + psize = mmu_virtual_psize; + else if (page_size == (1UL << mmu_psize_defs[MMU_PAGE_2M].shift)) + psize = MMU_PAGE_2M; + else if (page_size == (1UL << mmu_psize_defs[MMU_PAGE_1G].shift)) + psize = MMU_PAGE_1G; + else + return -1; + return psize; +} void radix__tlb_flush(struct mmu_gather *tlb) { struct mm_struct *mm = tlb->mm; radix__flush_tlb_mm(mm); } + +void radix__flush_tlb_lpid_va(unsigned long lpid, unsigned long gpa, + unsigned long page_size) +{ + unsigned long rb,rs,prs,r; + unsigned long ap; + unsigned long ric = RIC_FLUSH_TLB; + + ap = mmu_get_ap(radix_get_mmu_psize(page_size)); + rb = gpa & ~(PPC_BITMASK(52, 63)); + rb |= ap << PPC_BITLSHIFT(58); + rs = lpid & ((1UL << 32) - 1); + prs = 0; /* process scoped */ + r = 1; /* raidx format */ + + asm volatile("ptesync": : :"memory"); + asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1) + : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory"); + asm volatile("eieio; tlbsync; ptesync": : :"memory"); +} +EXPORT_SYMBOL(radix__flush_tlb_lpid_va); + +void radix__flush_tlb_lpid(unsigned long lpid) +{ + unsigned long rb,rs,prs,r; + unsigned long ric = RIC_FLUSH_ALL; + + rb = 0x2 << PPC_BITLSHIFT(53); /* IS = 2 */ + rs = lpid & ((1UL << 32) - 1); + prs = 0; /* partition scoped */ + r = 1; /* raidx format */ + + asm volatile("ptesync": : :"memory"); + asm volatile(PPC_TLBIE_5(%0, %4, %3, %2, %1) + : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory"); + asm volatile("eieio; tlbsync; ptesync": : :"memory"); +} +EXPORT_SYMBOL(radix__flush_tlb_lpid); diff --git a/arch/powerpc/net/Makefile b/arch/powerpc/net/Makefile index 1306a58ac541..c1ff16a6eb51 100644 --- a/arch/powerpc/net/Makefile +++ b/arch/powerpc/net/Makefile @@ -1,4 +1,8 @@ # # Arch-specific network modules # +ifeq ($(CONFIG_PPC64),y) +obj-$(CONFIG_BPF_JIT) += bpf_jit_asm64.o bpf_jit_comp64.o +else obj-$(CONFIG_BPF_JIT) += bpf_jit_asm.o bpf_jit_comp.o +endif diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h index 889fd199a821..d5301b6f20d0 100644 --- a/arch/powerpc/net/bpf_jit.h +++ b/arch/powerpc/net/bpf_jit.h @@ -1,6 +1,8 @@ -/* bpf_jit.h: BPF JIT compiler for PPC64 +/* + * bpf_jit.h: BPF JIT compiler for PPC * * Copyright 2011 Matt Evans <matt@ozlabs.org>, IBM Corporation + * 2016 Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -10,67 +12,11 @@ #ifndef _BPF_JIT_H #define _BPF_JIT_H -#ifdef CONFIG_PPC64 -#define BPF_PPC_STACK_R3_OFF 48 -#define BPF_PPC_STACK_LOCALS 32 -#define BPF_PPC_STACK_BASIC (48+64) -#define BPF_PPC_STACK_SAVE (18*8) -#define BPF_PPC_STACKFRAME (BPF_PPC_STACK_BASIC+BPF_PPC_STACK_LOCALS+ \ - BPF_PPC_STACK_SAVE) -#define BPF_PPC_SLOWPATH_FRAME (48+64) -#else -#define BPF_PPC_STACK_R3_OFF 24 -#define BPF_PPC_STACK_LOCALS 16 -#define BPF_PPC_STACK_BASIC (24+32) -#define BPF_PPC_STACK_SAVE (18*4) -#define BPF_PPC_STACKFRAME (BPF_PPC_STACK_BASIC+BPF_PPC_STACK_LOCALS+ \ - BPF_PPC_STACK_SAVE) -#define BPF_PPC_SLOWPATH_FRAME (24+32) -#endif - -#define REG_SZ (BITS_PER_LONG/8) - -/* - * Generated code register usage: - * - * As normal PPC C ABI (e.g. r1=sp, r2=TOC), with: - * - * skb r3 (Entry parameter) - * A register r4 - * X register r5 - * addr param r6 - * r7-r10 scratch - * skb->data r14 - * skb headlen r15 (skb->len - skb->data_len) - * m[0] r16 - * m[...] ... - * m[15] r31 - */ -#define r_skb 3 -#define r_ret 3 -#define r_A 4 -#define r_X 5 -#define r_addr 6 -#define r_scratch1 7 -#define r_scratch2 8 -#define r_D 14 -#define r_HL 15 -#define r_M 16 - #ifndef __ASSEMBLY__ -/* - * Assembly helpers from arch/powerpc/net/bpf_jit.S: - */ -#define DECLARE_LOAD_FUNC(func) \ - extern u8 func[], func##_negative_offset[], func##_positive_offset[] - -DECLARE_LOAD_FUNC(sk_load_word); -DECLARE_LOAD_FUNC(sk_load_half); -DECLARE_LOAD_FUNC(sk_load_byte); -DECLARE_LOAD_FUNC(sk_load_byte_msh); +#include <asm/types.h> -#ifdef CONFIG_PPC64 +#ifdef PPC64_ELF_ABI_v1 #define FUNCTION_DESCR_SIZE 24 #else #define FUNCTION_DESCR_SIZE 0 @@ -83,7 +29,7 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); */ #define IMM_H(i) ((uintptr_t)(i)>>16) #define IMM_HA(i) (((uintptr_t)(i)>>16) + \ - (((uintptr_t)(i) & 0x8000) >> 15)) + (((uintptr_t)(i) & 0x8000) >> 15)) #define IMM_L(i) ((uintptr_t)(i) & 0xffff) #define PLANT_INSTR(d, idx, instr) \ @@ -99,16 +45,20 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); #define PPC_MR(d, a) PPC_OR(d, a, a) #define PPC_LI(r, i) PPC_ADDI(r, 0, i) #define PPC_ADDIS(d, a, i) EMIT(PPC_INST_ADDIS | \ - ___PPC_RS(d) | ___PPC_RA(a) | IMM_L(i)) + ___PPC_RT(d) | ___PPC_RA(a) | IMM_L(i)) #define PPC_LIS(r, i) PPC_ADDIS(r, 0, i) #define PPC_STD(r, base, i) EMIT(PPC_INST_STD | ___PPC_RS(r) | \ ___PPC_RA(base) | ((i) & 0xfffc)) #define PPC_STDU(r, base, i) EMIT(PPC_INST_STDU | ___PPC_RS(r) | \ ___PPC_RA(base) | ((i) & 0xfffc)) #define PPC_STW(r, base, i) EMIT(PPC_INST_STW | ___PPC_RS(r) | \ - ___PPC_RA(base) | ((i) & 0xfffc)) + ___PPC_RA(base) | IMM_L(i)) #define PPC_STWU(r, base, i) EMIT(PPC_INST_STWU | ___PPC_RS(r) | \ - ___PPC_RA(base) | ((i) & 0xfffc)) + ___PPC_RA(base) | IMM_L(i)) +#define PPC_STH(r, base, i) EMIT(PPC_INST_STH | ___PPC_RS(r) | \ + ___PPC_RA(base) | IMM_L(i)) +#define PPC_STB(r, base, i) EMIT(PPC_INST_STB | ___PPC_RS(r) | \ + ___PPC_RA(base) | IMM_L(i)) #define PPC_LBZ(r, base, i) EMIT(PPC_INST_LBZ | ___PPC_RT(r) | \ ___PPC_RA(base) | IMM_L(i)) @@ -120,6 +70,19 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); ___PPC_RA(base) | IMM_L(i)) #define PPC_LHBRX(r, base, b) EMIT(PPC_INST_LHBRX | ___PPC_RT(r) | \ ___PPC_RA(base) | ___PPC_RB(b)) +#define PPC_LDBRX(r, base, b) EMIT(PPC_INST_LDBRX | ___PPC_RT(r) | \ + ___PPC_RA(base) | ___PPC_RB(b)) + +#define PPC_BPF_LDARX(t, a, b, eh) EMIT(PPC_INST_LDARX | ___PPC_RT(t) | \ + ___PPC_RA(a) | ___PPC_RB(b) | \ + __PPC_EH(eh)) +#define PPC_BPF_LWARX(t, a, b, eh) EMIT(PPC_INST_LWARX | ___PPC_RT(t) | \ + ___PPC_RA(a) | ___PPC_RB(b) | \ + __PPC_EH(eh)) +#define PPC_BPF_STWCX(s, a, b) EMIT(PPC_INST_STWCX | ___PPC_RS(s) | \ + ___PPC_RA(a) | ___PPC_RB(b)) +#define PPC_BPF_STDCX(s, a, b) EMIT(PPC_INST_STDCX | ___PPC_RS(s) | \ + ___PPC_RA(a) | ___PPC_RB(b)) #ifdef CONFIG_PPC64 #define PPC_BPF_LL(r, base, i) do { PPC_LD(r, base, i); } while(0) @@ -131,56 +94,26 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); #define PPC_BPF_STLU(r, base, i) do { PPC_STWU(r, base, i); } while(0) #endif -/* Convenience helpers for the above with 'far' offsets: */ -#define PPC_LBZ_OFFS(r, base, i) do { if ((i) < 32768) PPC_LBZ(r, base, i); \ - else { PPC_ADDIS(r, base, IMM_HA(i)); \ - PPC_LBZ(r, r, IMM_L(i)); } } while(0) - -#define PPC_LD_OFFS(r, base, i) do { if ((i) < 32768) PPC_LD(r, base, i); \ - else { PPC_ADDIS(r, base, IMM_HA(i)); \ - PPC_LD(r, r, IMM_L(i)); } } while(0) - -#define PPC_LWZ_OFFS(r, base, i) do { if ((i) < 32768) PPC_LWZ(r, base, i); \ - else { PPC_ADDIS(r, base, IMM_HA(i)); \ - PPC_LWZ(r, r, IMM_L(i)); } } while(0) - -#define PPC_LHZ_OFFS(r, base, i) do { if ((i) < 32768) PPC_LHZ(r, base, i); \ - else { PPC_ADDIS(r, base, IMM_HA(i)); \ - PPC_LHZ(r, r, IMM_L(i)); } } while(0) - -#ifdef CONFIG_PPC64 -#define PPC_LL_OFFS(r, base, i) do { PPC_LD_OFFS(r, base, i); } while(0) -#else -#define PPC_LL_OFFS(r, base, i) do { PPC_LWZ_OFFS(r, base, i); } while(0) -#endif - -#ifdef CONFIG_SMP -#ifdef CONFIG_PPC64 -#define PPC_BPF_LOAD_CPU(r) \ - do { BUILD_BUG_ON(FIELD_SIZEOF(struct paca_struct, paca_index) != 2); \ - PPC_LHZ_OFFS(r, 13, offsetof(struct paca_struct, paca_index)); \ - } while (0) -#else -#define PPC_BPF_LOAD_CPU(r) \ - do { BUILD_BUG_ON(FIELD_SIZEOF(struct thread_info, cpu) != 4); \ - PPC_LHZ_OFFS(r, (1 & ~(THREAD_SIZE - 1)), \ - offsetof(struct thread_info, cpu)); \ - } while(0) -#endif -#else -#define PPC_BPF_LOAD_CPU(r) do { PPC_LI(r, 0); } while(0) -#endif - #define PPC_CMPWI(a, i) EMIT(PPC_INST_CMPWI | ___PPC_RA(a) | IMM_L(i)) #define PPC_CMPDI(a, i) EMIT(PPC_INST_CMPDI | ___PPC_RA(a) | IMM_L(i)) +#define PPC_CMPW(a, b) EMIT(PPC_INST_CMPW | ___PPC_RA(a) | \ + ___PPC_RB(b)) +#define PPC_CMPD(a, b) EMIT(PPC_INST_CMPD | ___PPC_RA(a) | \ + ___PPC_RB(b)) #define PPC_CMPLWI(a, i) EMIT(PPC_INST_CMPLWI | ___PPC_RA(a) | IMM_L(i)) -#define PPC_CMPLW(a, b) EMIT(PPC_INST_CMPLW | ___PPC_RA(a) | ___PPC_RB(b)) +#define PPC_CMPLDI(a, i) EMIT(PPC_INST_CMPLDI | ___PPC_RA(a) | IMM_L(i)) +#define PPC_CMPLW(a, b) EMIT(PPC_INST_CMPLW | ___PPC_RA(a) | \ + ___PPC_RB(b)) +#define PPC_CMPLD(a, b) EMIT(PPC_INST_CMPLD | ___PPC_RA(a) | \ + ___PPC_RB(b)) #define PPC_SUB(d, a, b) EMIT(PPC_INST_SUB | ___PPC_RT(d) | \ ___PPC_RB(a) | ___PPC_RA(b)) #define PPC_ADD(d, a, b) EMIT(PPC_INST_ADD | ___PPC_RT(d) | \ ___PPC_RA(a) | ___PPC_RB(b)) -#define PPC_MUL(d, a, b) EMIT(PPC_INST_MULLW | ___PPC_RT(d) | \ +#define PPC_MULD(d, a, b) EMIT(PPC_INST_MULLD | ___PPC_RT(d) | \ + ___PPC_RA(a) | ___PPC_RB(b)) +#define PPC_MULW(d, a, b) EMIT(PPC_INST_MULLW | ___PPC_RT(d) | \ ___PPC_RA(a) | ___PPC_RB(b)) #define PPC_MULHWU(d, a, b) EMIT(PPC_INST_MULHWU | ___PPC_RT(d) | \ ___PPC_RA(a) | ___PPC_RB(b)) @@ -188,6 +121,8 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); ___PPC_RA(a) | IMM_L(i)) #define PPC_DIVWU(d, a, b) EMIT(PPC_INST_DIVWU | ___PPC_RT(d) | \ ___PPC_RA(a) | ___PPC_RB(b)) +#define PPC_DIVD(d, a, b) EMIT(PPC_INST_DIVD | ___PPC_RT(d) | \ + ___PPC_RA(a) | ___PPC_RB(b)) #define PPC_AND(d, a, b) EMIT(PPC_INST_AND | ___PPC_RA(d) | \ ___PPC_RS(a) | ___PPC_RB(b)) #define PPC_ANDI(d, a, i) EMIT(PPC_INST_ANDI | ___PPC_RA(d) | \ @@ -196,6 +131,7 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); ___PPC_RS(a) | ___PPC_RB(b)) #define PPC_OR(d, a, b) EMIT(PPC_INST_OR | ___PPC_RA(d) | \ ___PPC_RS(a) | ___PPC_RB(b)) +#define PPC_MR(d, a) PPC_OR(d, a, a) #define PPC_ORI(d, a, i) EMIT(PPC_INST_ORI | ___PPC_RA(d) | \ ___PPC_RS(a) | IMM_L(i)) #define PPC_ORIS(d, a, i) EMIT(PPC_INST_ORIS | ___PPC_RA(d) | \ @@ -206,22 +142,43 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); ___PPC_RS(a) | IMM_L(i)) #define PPC_XORIS(d, a, i) EMIT(PPC_INST_XORIS | ___PPC_RA(d) | \ ___PPC_RS(a) | IMM_L(i)) +#define PPC_EXTSW(d, a) EMIT(PPC_INST_EXTSW | ___PPC_RA(d) | \ + ___PPC_RS(a)) #define PPC_SLW(d, a, s) EMIT(PPC_INST_SLW | ___PPC_RA(d) | \ ___PPC_RS(a) | ___PPC_RB(s)) +#define PPC_SLD(d, a, s) EMIT(PPC_INST_SLD | ___PPC_RA(d) | \ + ___PPC_RS(a) | ___PPC_RB(s)) #define PPC_SRW(d, a, s) EMIT(PPC_INST_SRW | ___PPC_RA(d) | \ ___PPC_RS(a) | ___PPC_RB(s)) +#define PPC_SRD(d, a, s) EMIT(PPC_INST_SRD | ___PPC_RA(d) | \ + ___PPC_RS(a) | ___PPC_RB(s)) +#define PPC_SRAD(d, a, s) EMIT(PPC_INST_SRAD | ___PPC_RA(d) | \ + ___PPC_RS(a) | ___PPC_RB(s)) +#define PPC_SRADI(d, a, i) EMIT(PPC_INST_SRADI | ___PPC_RA(d) | \ + ___PPC_RS(a) | __PPC_SH(i) | \ + (((i) & 0x20) >> 4)) +#define PPC_RLWINM(d, a, i, mb, me) EMIT(PPC_INST_RLWINM | ___PPC_RA(d) | \ + ___PPC_RS(a) | __PPC_SH(i) | \ + __PPC_MB(mb) | __PPC_ME(me)) +#define PPC_RLWIMI(d, a, i, mb, me) EMIT(PPC_INST_RLWIMI | ___PPC_RA(d) | \ + ___PPC_RS(a) | __PPC_SH(i) | \ + __PPC_MB(mb) | __PPC_ME(me)) +#define PPC_RLDICL(d, a, i, mb) EMIT(PPC_INST_RLDICL | ___PPC_RA(d) | \ + ___PPC_RS(a) | __PPC_SH(i) | \ + __PPC_MB64(mb) | (((i) & 0x20) >> 4)) +#define PPC_RLDICR(d, a, i, me) EMIT(PPC_INST_RLDICR | ___PPC_RA(d) | \ + ___PPC_RS(a) | __PPC_SH(i) | \ + __PPC_ME64(me) | (((i) & 0x20) >> 4)) + /* slwi = rlwinm Rx, Ry, n, 0, 31-n */ -#define PPC_SLWI(d, a, i) EMIT(PPC_INST_RLWINM | ___PPC_RA(d) | \ - ___PPC_RS(a) | __PPC_SH(i) | \ - __PPC_MB(0) | __PPC_ME(31-(i))) +#define PPC_SLWI(d, a, i) PPC_RLWINM(d, a, i, 0, 31-(i)) /* srwi = rlwinm Rx, Ry, 32-n, n, 31 */ -#define PPC_SRWI(d, a, i) EMIT(PPC_INST_RLWINM | ___PPC_RA(d) | \ - ___PPC_RS(a) | __PPC_SH(32-(i)) | \ - __PPC_MB(i) | __PPC_ME(31)) +#define PPC_SRWI(d, a, i) PPC_RLWINM(d, a, 32-(i), i, 31) /* sldi = rldicr Rx, Ry, n, 63-n */ -#define PPC_SLDI(d, a, i) EMIT(PPC_INST_RLDICR | ___PPC_RA(d) | \ - ___PPC_RS(a) | __PPC_SH(i) | \ - __PPC_MB(63-(i)) | (((i) & 0x20) >> 4)) +#define PPC_SLDI(d, a, i) PPC_RLDICR(d, a, i, 63-(i)) +/* sldi = rldicl Rx, Ry, 64-n, n */ +#define PPC_SRDI(d, a, i) PPC_RLDICL(d, a, 64-(i), i) + #define PPC_NEG(d, a) EMIT(PPC_INST_NEG | ___PPC_RT(d) | ___PPC_RA(a)) /* Long jump; (unconditional 'branch') */ @@ -232,25 +189,37 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); (((cond) & 0x3ff) << 16) | \ (((dest) - (ctx->idx * 4)) & \ 0xfffc)) -#define PPC_LI32(d, i) do { PPC_LI(d, IMM_L(i)); \ - if ((u32)(uintptr_t)(i) >= 32768) { \ - PPC_ADDIS(d, d, IMM_HA(i)); \ +/* Sign-extended 32-bit immediate load */ +#define PPC_LI32(d, i) do { \ + if ((int)(uintptr_t)(i) >= -32768 && \ + (int)(uintptr_t)(i) < 32768) \ + PPC_LI(d, i); \ + else { \ + PPC_LIS(d, IMM_H(i)); \ + if (IMM_L(i)) \ + PPC_ORI(d, d, IMM_L(i)); \ } } while(0) + #define PPC_LI64(d, i) do { \ - if (!((uintptr_t)(i) & 0xffffffff00000000ULL)) \ + if ((long)(i) >= -2147483648 && \ + (long)(i) < 2147483648) \ PPC_LI32(d, i); \ else { \ - PPC_LIS(d, ((uintptr_t)(i) >> 48)); \ - if ((uintptr_t)(i) & 0x0000ffff00000000ULL) \ - PPC_ORI(d, d, \ - ((uintptr_t)(i) >> 32) & 0xffff); \ + if (!((uintptr_t)(i) & 0xffff800000000000ULL)) \ + PPC_LI(d, ((uintptr_t)(i) >> 32) & 0xffff); \ + else { \ + PPC_LIS(d, ((uintptr_t)(i) >> 48)); \ + if ((uintptr_t)(i) & 0x0000ffff00000000ULL) \ + PPC_ORI(d, d, \ + ((uintptr_t)(i) >> 32) & 0xffff); \ + } \ PPC_SLDI(d, d, 32); \ if ((uintptr_t)(i) & 0x00000000ffff0000ULL) \ PPC_ORIS(d, d, \ ((uintptr_t)(i) >> 16) & 0xffff); \ if ((uintptr_t)(i) & 0x000000000000ffffULL) \ PPC_ORI(d, d, (uintptr_t)(i) & 0xffff); \ - } } while (0); + } } while (0) #ifdef CONFIG_PPC64 #define PPC_FUNC_ADDR(d,i) do { PPC_LI64(d, i); } while(0) @@ -258,14 +227,6 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); #define PPC_FUNC_ADDR(d,i) do { PPC_LI32(d, i); } while(0) #endif -#define PPC_LHBRX_OFFS(r, base, i) \ - do { PPC_LI32(r, i); PPC_LHBRX(r, r, base); } while(0) -#ifdef __LITTLE_ENDIAN__ -#define PPC_NTOHS_OFFS(r, base, i) PPC_LHBRX_OFFS(r, base, i) -#else -#define PPC_NTOHS_OFFS(r, base, i) PPC_LHZ_OFFS(r, base, i) -#endif - static inline bool is_nearbranch(int offset) { return (offset < 32768) && (offset >= -32768); @@ -302,18 +263,6 @@ static inline bool is_nearbranch(int offset) #define COND_NE (CR0_EQ | COND_CMP_FALSE) #define COND_LT (CR0_LT | COND_CMP_TRUE) -#define SEEN_DATAREF 0x10000 /* might call external helpers */ -#define SEEN_XREG 0x20000 /* X reg is used */ -#define SEEN_MEM 0x40000 /* SEEN_MEM+(1<<n) = use mem[n] for temporary - * storage */ -#define SEEN_MEM_MSK 0x0ffff - -struct codegen_context { - unsigned int seen; - unsigned int idx; - int pc_ret0; /* bpf index of first RET #0 instruction (if any) */ -}; - #endif #endif diff --git a/arch/powerpc/net/bpf_jit32.h b/arch/powerpc/net/bpf_jit32.h new file mode 100644 index 000000000000..a8cd7e289ecd --- /dev/null +++ b/arch/powerpc/net/bpf_jit32.h @@ -0,0 +1,139 @@ +/* + * bpf_jit32.h: BPF JIT compiler for PPC + * + * Copyright 2011 Matt Evans <matt@ozlabs.org>, IBM Corporation + * + * Split from bpf_jit.h + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 + * of the License. + */ +#ifndef _BPF_JIT32_H +#define _BPF_JIT32_H + +#include "bpf_jit.h" + +#ifdef CONFIG_PPC64 +#define BPF_PPC_STACK_R3_OFF 48 +#define BPF_PPC_STACK_LOCALS 32 +#define BPF_PPC_STACK_BASIC (48+64) +#define BPF_PPC_STACK_SAVE (18*8) +#define BPF_PPC_STACKFRAME (BPF_PPC_STACK_BASIC+BPF_PPC_STACK_LOCALS+ \ + BPF_PPC_STACK_SAVE) +#define BPF_PPC_SLOWPATH_FRAME (48+64) +#else +#define BPF_PPC_STACK_R3_OFF 24 +#define BPF_PPC_STACK_LOCALS 16 +#define BPF_PPC_STACK_BASIC (24+32) +#define BPF_PPC_STACK_SAVE (18*4) +#define BPF_PPC_STACKFRAME (BPF_PPC_STACK_BASIC+BPF_PPC_STACK_LOCALS+ \ + BPF_PPC_STACK_SAVE) +#define BPF_PPC_SLOWPATH_FRAME (24+32) +#endif + +#define REG_SZ (BITS_PER_LONG/8) + +/* + * Generated code register usage: + * + * As normal PPC C ABI (e.g. r1=sp, r2=TOC), with: + * + * skb r3 (Entry parameter) + * A register r4 + * X register r5 + * addr param r6 + * r7-r10 scratch + * skb->data r14 + * skb headlen r15 (skb->len - skb->data_len) + * m[0] r16 + * m[...] ... + * m[15] r31 + */ +#define r_skb 3 +#define r_ret 3 +#define r_A 4 +#define r_X 5 +#define r_addr 6 +#define r_scratch1 7 +#define r_scratch2 8 +#define r_D 14 +#define r_HL 15 +#define r_M 16 + +#ifndef __ASSEMBLY__ + +/* + * Assembly helpers from arch/powerpc/net/bpf_jit.S: + */ +#define DECLARE_LOAD_FUNC(func) \ + extern u8 func[], func##_negative_offset[], func##_positive_offset[] + +DECLARE_LOAD_FUNC(sk_load_word); +DECLARE_LOAD_FUNC(sk_load_half); +DECLARE_LOAD_FUNC(sk_load_byte); +DECLARE_LOAD_FUNC(sk_load_byte_msh); + +#define PPC_LBZ_OFFS(r, base, i) do { if ((i) < 32768) PPC_LBZ(r, base, i); \ + else { PPC_ADDIS(r, base, IMM_HA(i)); \ + PPC_LBZ(r, r, IMM_L(i)); } } while(0) + +#define PPC_LD_OFFS(r, base, i) do { if ((i) < 32768) PPC_LD(r, base, i); \ + else { PPC_ADDIS(r, base, IMM_HA(i)); \ + PPC_LD(r, r, IMM_L(i)); } } while(0) + +#define PPC_LWZ_OFFS(r, base, i) do { if ((i) < 32768) PPC_LWZ(r, base, i); \ + else { PPC_ADDIS(r, base, IMM_HA(i)); \ + PPC_LWZ(r, r, IMM_L(i)); } } while(0) + +#define PPC_LHZ_OFFS(r, base, i) do { if ((i) < 32768) PPC_LHZ(r, base, i); \ + else { PPC_ADDIS(r, base, IMM_HA(i)); \ + PPC_LHZ(r, r, IMM_L(i)); } } while(0) + +#ifdef CONFIG_PPC64 +#define PPC_LL_OFFS(r, base, i) do { PPC_LD_OFFS(r, base, i); } while(0) +#else +#define PPC_LL_OFFS(r, base, i) do { PPC_LWZ_OFFS(r, base, i); } while(0) +#endif + +#ifdef CONFIG_SMP +#ifdef CONFIG_PPC64 +#define PPC_BPF_LOAD_CPU(r) \ + do { BUILD_BUG_ON(FIELD_SIZEOF(struct paca_struct, paca_index) != 2); \ + PPC_LHZ_OFFS(r, 13, offsetof(struct paca_struct, paca_index)); \ + } while (0) +#else +#define PPC_BPF_LOAD_CPU(r) \ + do { BUILD_BUG_ON(FIELD_SIZEOF(struct thread_info, cpu) != 4); \ + PPC_LHZ_OFFS(r, (1 & ~(THREAD_SIZE - 1)), \ + offsetof(struct thread_info, cpu)); \ + } while(0) +#endif +#else +#define PPC_BPF_LOAD_CPU(r) do { PPC_LI(r, 0); } while(0) +#endif + +#define PPC_LHBRX_OFFS(r, base, i) \ + do { PPC_LI32(r, i); PPC_LHBRX(r, r, base); } while(0) +#ifdef __LITTLE_ENDIAN__ +#define PPC_NTOHS_OFFS(r, base, i) PPC_LHBRX_OFFS(r, base, i) +#else +#define PPC_NTOHS_OFFS(r, base, i) PPC_LHZ_OFFS(r, base, i) +#endif + +#define SEEN_DATAREF 0x10000 /* might call external helpers */ +#define SEEN_XREG 0x20000 /* X reg is used */ +#define SEEN_MEM 0x40000 /* SEEN_MEM+(1<<n) = use mem[n] for temporary + * storage */ +#define SEEN_MEM_MSK 0x0ffff + +struct codegen_context { + unsigned int seen; + unsigned int idx; + int pc_ret0; /* bpf index of first RET #0 instruction (if any) */ +}; + +#endif + +#endif diff --git a/arch/powerpc/net/bpf_jit64.h b/arch/powerpc/net/bpf_jit64.h new file mode 100644 index 000000000000..5046d6f65c02 --- /dev/null +++ b/arch/powerpc/net/bpf_jit64.h @@ -0,0 +1,102 @@ +/* + * bpf_jit64.h: BPF JIT compiler for PPC64 + * + * Copyright 2016 Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> + * IBM Corporation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 + * of the License. + */ +#ifndef _BPF_JIT64_H +#define _BPF_JIT64_H + +#include "bpf_jit.h" + +/* + * Stack layout: + * + * [ prev sp ] <------------- + * [ nv gpr save area ] 8*8 | + * fp (r31) --> [ ebpf stack space ] 512 | + * [ local/tmp var space ] 16 | + * [ frame header ] 32/112 | + * sp (r1) ---> [ stack pointer ] -------------- + */ + +/* for bpf JIT code internal usage */ +#define BPF_PPC_STACK_LOCALS 16 +/* for gpr non volatile registers BPG_REG_6 to 10, plus skb cache registers */ +#define BPF_PPC_STACK_SAVE (8*8) +/* Ensure this is quadword aligned */ +#define BPF_PPC_STACKFRAME (STACK_FRAME_MIN_SIZE + BPF_PPC_STACK_LOCALS + \ + MAX_BPF_STACK + BPF_PPC_STACK_SAVE) + +#ifndef __ASSEMBLY__ + +/* BPF register usage */ +#define SKB_HLEN_REG (MAX_BPF_REG + 0) +#define SKB_DATA_REG (MAX_BPF_REG + 1) +#define TMP_REG_1 (MAX_BPF_REG + 2) +#define TMP_REG_2 (MAX_BPF_REG + 3) + +/* BPF to ppc register mappings */ +static const int b2p[] = { + /* function return value */ + [BPF_REG_0] = 8, + /* function arguments */ + [BPF_REG_1] = 3, + [BPF_REG_2] = 4, + [BPF_REG_3] = 5, + [BPF_REG_4] = 6, + [BPF_REG_5] = 7, + /* non volatile registers */ + [BPF_REG_6] = 27, + [BPF_REG_7] = 28, + [BPF_REG_8] = 29, + [BPF_REG_9] = 30, + /* frame pointer aka BPF_REG_10 */ + [BPF_REG_FP] = 31, + /* eBPF jit internal registers */ + [SKB_HLEN_REG] = 25, + [SKB_DATA_REG] = 26, + [TMP_REG_1] = 9, + [TMP_REG_2] = 10 +}; + +/* Assembly helpers */ +#define DECLARE_LOAD_FUNC(func) u64 func(u64 r3, u64 r4); \ + u64 func##_negative_offset(u64 r3, u64 r4); \ + u64 func##_positive_offset(u64 r3, u64 r4); + +DECLARE_LOAD_FUNC(sk_load_word); +DECLARE_LOAD_FUNC(sk_load_half); +DECLARE_LOAD_FUNC(sk_load_byte); + +#define CHOOSE_LOAD_FUNC(imm, func) \ + (imm < 0 ? \ + (imm >= SKF_LL_OFF ? func##_negative_offset : func) : \ + func##_positive_offset) + +#define SEEN_FUNC 0x1000 /* might call external helpers */ +#define SEEN_STACK 0x2000 /* uses BPF stack */ +#define SEEN_SKB 0x4000 /* uses sk_buff */ + +struct codegen_context { + /* + * This is used to track register usage as well + * as calls to external helpers. + * - register usage is tracked with corresponding + * bits (r3-r10 and r25-r31) + * - rest of the bits can be used to track other + * things -- for now, we use bits 16 to 23 + * encoded in SEEN_* macros above + */ + unsigned int seen; + unsigned int idx; +}; + +#endif /* !__ASSEMBLY__ */ + +#endif diff --git a/arch/powerpc/net/bpf_jit_asm.S b/arch/powerpc/net/bpf_jit_asm.S index 8ff5a3b5d1c3..3dd9c43d40c9 100644 --- a/arch/powerpc/net/bpf_jit_asm.S +++ b/arch/powerpc/net/bpf_jit_asm.S @@ -10,7 +10,7 @@ */ #include <asm/ppc_asm.h> -#include "bpf_jit.h" +#include "bpf_jit32.h" /* * All of these routines are called directly from generated code, diff --git a/arch/powerpc/net/bpf_jit_asm64.S b/arch/powerpc/net/bpf_jit_asm64.S new file mode 100644 index 000000000000..7e4c51430b84 --- /dev/null +++ b/arch/powerpc/net/bpf_jit_asm64.S @@ -0,0 +1,180 @@ +/* + * bpf_jit_asm64.S: Packet/header access helper functions + * for PPC64 BPF compiler. + * + * Copyright 2016, Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> + * IBM Corporation + * + * Based on bpf_jit_asm.S by Matt Evans + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 + * of the License. + */ + +#include <asm/ppc_asm.h> +#include <asm/ptrace.h> +#include "bpf_jit64.h" + +/* + * All of these routines are called directly from generated code, + * with the below register usage: + * r27 skb pointer (ctx) + * r25 skb header length + * r26 skb->data pointer + * r4 offset + * + * Result is passed back in: + * r8 data read in host endian format (accumulator) + * + * r9 is used as a temporary register + */ + +#define r_skb r27 +#define r_hlen r25 +#define r_data r26 +#define r_off r4 +#define r_val r8 +#define r_tmp r9 + +_GLOBAL_TOC(sk_load_word) + cmpdi r_off, 0 + blt bpf_slow_path_word_neg + b sk_load_word_positive_offset + +_GLOBAL_TOC(sk_load_word_positive_offset) + /* Are we accessing past headlen? */ + subi r_tmp, r_hlen, 4 + cmpd r_tmp, r_off + blt bpf_slow_path_word + /* Nope, just hitting the header. cr0 here is eq or gt! */ + LWZX_BE r_val, r_data, r_off + blr /* Return success, cr0 != LT */ + +_GLOBAL_TOC(sk_load_half) + cmpdi r_off, 0 + blt bpf_slow_path_half_neg + b sk_load_half_positive_offset + +_GLOBAL_TOC(sk_load_half_positive_offset) + subi r_tmp, r_hlen, 2 + cmpd r_tmp, r_off + blt bpf_slow_path_half + LHZX_BE r_val, r_data, r_off + blr + +_GLOBAL_TOC(sk_load_byte) + cmpdi r_off, 0 + blt bpf_slow_path_byte_neg + b sk_load_byte_positive_offset + +_GLOBAL_TOC(sk_load_byte_positive_offset) + cmpd r_hlen, r_off + ble bpf_slow_path_byte + lbzx r_val, r_data, r_off + blr + +/* + * Call out to skb_copy_bits: + * Allocate a new stack frame here to remain ABI-compliant in + * stashing LR. + */ +#define bpf_slow_path_common(SIZE) \ + mflr r0; \ + std r0, PPC_LR_STKOFF(r1); \ + stdu r1, -(STACK_FRAME_MIN_SIZE + BPF_PPC_STACK_LOCALS)(r1); \ + mr r3, r_skb; \ + /* r4 = r_off as passed */ \ + addi r5, r1, STACK_FRAME_MIN_SIZE; \ + li r6, SIZE; \ + bl skb_copy_bits; \ + nop; \ + /* save r5 */ \ + addi r5, r1, STACK_FRAME_MIN_SIZE; \ + /* r3 = 0 on success */ \ + addi r1, r1, STACK_FRAME_MIN_SIZE + BPF_PPC_STACK_LOCALS; \ + ld r0, PPC_LR_STKOFF(r1); \ + mtlr r0; \ + cmpdi r3, 0; \ + blt bpf_error; /* cr0 = LT */ + +bpf_slow_path_word: + bpf_slow_path_common(4) + /* Data value is on stack, and cr0 != LT */ + LWZX_BE r_val, 0, r5 + blr + +bpf_slow_path_half: + bpf_slow_path_common(2) + LHZX_BE r_val, 0, r5 + blr + +bpf_slow_path_byte: + bpf_slow_path_common(1) + lbzx r_val, 0, r5 + blr + +/* + * Call out to bpf_internal_load_pointer_neg_helper + */ +#define sk_negative_common(SIZE) \ + mflr r0; \ + std r0, PPC_LR_STKOFF(r1); \ + stdu r1, -STACK_FRAME_MIN_SIZE(r1); \ + mr r3, r_skb; \ + /* r4 = r_off, as passed */ \ + li r5, SIZE; \ + bl bpf_internal_load_pointer_neg_helper; \ + nop; \ + addi r1, r1, STACK_FRAME_MIN_SIZE; \ + ld r0, PPC_LR_STKOFF(r1); \ + mtlr r0; \ + /* R3 != 0 on success */ \ + cmpldi r3, 0; \ + beq bpf_error_slow; /* cr0 = EQ */ + +bpf_slow_path_word_neg: + lis r_tmp, -32 /* SKF_LL_OFF */ + cmpd r_off, r_tmp /* addr < SKF_* */ + blt bpf_error /* cr0 = LT */ + b sk_load_word_negative_offset + +_GLOBAL_TOC(sk_load_word_negative_offset) + sk_negative_common(4) + LWZX_BE r_val, 0, r3 + blr + +bpf_slow_path_half_neg: + lis r_tmp, -32 /* SKF_LL_OFF */ + cmpd r_off, r_tmp /* addr < SKF_* */ + blt bpf_error /* cr0 = LT */ + b sk_load_half_negative_offset + +_GLOBAL_TOC(sk_load_half_negative_offset) + sk_negative_common(2) + LHZX_BE r_val, 0, r3 + blr + +bpf_slow_path_byte_neg: + lis r_tmp, -32 /* SKF_LL_OFF */ + cmpd r_off, r_tmp /* addr < SKF_* */ + blt bpf_error /* cr0 = LT */ + b sk_load_byte_negative_offset + +_GLOBAL_TOC(sk_load_byte_negative_offset) + sk_negative_common(1) + lbzx r_val, 0, r3 + blr + +bpf_error_slow: + /* fabricate a cr0 = lt */ + li r_tmp, -1 + cmpdi r_tmp, 0 +bpf_error: + /* + * Entered with cr0 = lt + * Generated code will 'blt epilogue', returning 0. + */ + li r_val, 0 + blr diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c index 2d66a8446198..7e706f36e364 100644 --- a/arch/powerpc/net/bpf_jit_comp.c +++ b/arch/powerpc/net/bpf_jit_comp.c @@ -16,7 +16,7 @@ #include <linux/filter.h> #include <linux/if_vlan.h> -#include "bpf_jit.h" +#include "bpf_jit32.h" int bpf_jit_enable __read_mostly; @@ -161,14 +161,14 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, break; case BPF_ALU | BPF_MUL | BPF_X: /* A *= X; */ ctx->seen |= SEEN_XREG; - PPC_MUL(r_A, r_A, r_X); + PPC_MULW(r_A, r_A, r_X); break; case BPF_ALU | BPF_MUL | BPF_K: /* A *= K */ if (K < 32768) PPC_MULI(r_A, r_A, K); else { PPC_LI32(r_scratch1, K); - PPC_MUL(r_A, r_A, r_scratch1); + PPC_MULW(r_A, r_A, r_scratch1); } break; case BPF_ALU | BPF_MOD | BPF_X: /* A %= X; */ @@ -184,7 +184,7 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, } if (code == (BPF_ALU | BPF_MOD | BPF_X)) { PPC_DIVWU(r_scratch1, r_A, r_X); - PPC_MUL(r_scratch1, r_X, r_scratch1); + PPC_MULW(r_scratch1, r_X, r_scratch1); PPC_SUB(r_A, r_A, r_scratch1); } else { PPC_DIVWU(r_A, r_A, r_X); @@ -193,7 +193,7 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, case BPF_ALU | BPF_MOD | BPF_K: /* A %= K; */ PPC_LI32(r_scratch2, K); PPC_DIVWU(r_scratch1, r_A, r_scratch2); - PPC_MUL(r_scratch1, r_scratch2, r_scratch1); + PPC_MULW(r_scratch1, r_scratch2, r_scratch1); PPC_SUB(r_A, r_A, r_scratch1); break; case BPF_ALU | BPF_DIV | BPF_K: /* A /= K */ diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c new file mode 100644 index 000000000000..6073b78516f6 --- /dev/null +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -0,0 +1,954 @@ +/* + * bpf_jit_comp64.c: eBPF JIT compiler + * + * Copyright 2016 Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> + * IBM Corporation + * + * Based on the powerpc classic BPF JIT compiler by Matt Evans + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 + * of the License. + */ +#include <linux/moduleloader.h> +#include <asm/cacheflush.h> +#include <linux/netdevice.h> +#include <linux/filter.h> +#include <linux/if_vlan.h> +#include <asm/kprobes.h> + +#include "bpf_jit64.h" + +int bpf_jit_enable __read_mostly; + +static void bpf_jit_fill_ill_insns(void *area, unsigned int size) +{ + int *p = area; + + /* Fill whole space with trap instructions */ + while (p < (int *)((char *)area + size)) + *p++ = BREAKPOINT_INSTRUCTION; +} + +static inline void bpf_flush_icache(void *start, void *end) +{ + smp_wmb(); + flush_icache_range((unsigned long)start, (unsigned long)end); +} + +static inline bool bpf_is_seen_register(struct codegen_context *ctx, int i) +{ + return (ctx->seen & (1 << (31 - b2p[i]))); +} + +static inline void bpf_set_seen_register(struct codegen_context *ctx, int i) +{ + ctx->seen |= (1 << (31 - b2p[i])); +} + +static inline bool bpf_has_stack_frame(struct codegen_context *ctx) +{ + /* + * We only need a stack frame if: + * - we call other functions (kernel helpers), or + * - the bpf program uses its stack area + * The latter condition is deduced from the usage of BPF_REG_FP + */ + return ctx->seen & SEEN_FUNC || bpf_is_seen_register(ctx, BPF_REG_FP); +} + +static void bpf_jit_emit_skb_loads(u32 *image, struct codegen_context *ctx) +{ + /* + * Load skb->len and skb->data_len + * r3 points to skb + */ + PPC_LWZ(b2p[SKB_HLEN_REG], 3, offsetof(struct sk_buff, len)); + PPC_LWZ(b2p[TMP_REG_1], 3, offsetof(struct sk_buff, data_len)); + /* header_len = len - data_len */ + PPC_SUB(b2p[SKB_HLEN_REG], b2p[SKB_HLEN_REG], b2p[TMP_REG_1]); + + /* skb->data pointer */ + PPC_BPF_LL(b2p[SKB_DATA_REG], 3, offsetof(struct sk_buff, data)); +} + +static void bpf_jit_emit_func_call(u32 *image, struct codegen_context *ctx, u64 func) +{ +#ifdef PPC64_ELF_ABI_v1 + /* func points to the function descriptor */ + PPC_LI64(b2p[TMP_REG_2], func); + /* Load actual entry point from function descriptor */ + PPC_BPF_LL(b2p[TMP_REG_1], b2p[TMP_REG_2], 0); + /* ... and move it to LR */ + PPC_MTLR(b2p[TMP_REG_1]); + /* + * Load TOC from function descriptor at offset 8. + * We can clobber r2 since we get called through a + * function pointer (so caller will save/restore r2) + * and since we don't use a TOC ourself. + */ + PPC_BPF_LL(2, b2p[TMP_REG_2], 8); +#else + /* We can clobber r12 */ + PPC_FUNC_ADDR(12, func); + PPC_MTLR(12); +#endif + PPC_BLRL(); +} + +static void bpf_jit_build_prologue(u32 *image, struct codegen_context *ctx) +{ + int i; + bool new_stack_frame = bpf_has_stack_frame(ctx); + + if (new_stack_frame) { + /* + * We need a stack frame, but we don't necessarily need to + * save/restore LR unless we call other functions + */ + if (ctx->seen & SEEN_FUNC) { + EMIT(PPC_INST_MFLR | __PPC_RT(R0)); + PPC_BPF_STL(0, 1, PPC_LR_STKOFF); + } + + PPC_BPF_STLU(1, 1, -BPF_PPC_STACKFRAME); + } + + /* + * Back up non-volatile regs -- BPF registers 6-10 + * If we haven't created our own stack frame, we save these + * in the protected zone below the previous stack frame + */ + for (i = BPF_REG_6; i <= BPF_REG_10; i++) + if (bpf_is_seen_register(ctx, i)) + PPC_BPF_STL(b2p[i], 1, + (new_stack_frame ? BPF_PPC_STACKFRAME : 0) - + (8 * (32 - b2p[i]))); + + /* + * Save additional non-volatile regs if we cache skb + * Also, setup skb data + */ + if (ctx->seen & SEEN_SKB) { + PPC_BPF_STL(b2p[SKB_HLEN_REG], 1, + BPF_PPC_STACKFRAME - (8 * (32 - b2p[SKB_HLEN_REG]))); + PPC_BPF_STL(b2p[SKB_DATA_REG], 1, + BPF_PPC_STACKFRAME - (8 * (32 - b2p[SKB_DATA_REG]))); + bpf_jit_emit_skb_loads(image, ctx); + } + + /* Setup frame pointer to point to the bpf stack area */ + if (bpf_is_seen_register(ctx, BPF_REG_FP)) + PPC_ADDI(b2p[BPF_REG_FP], 1, + BPF_PPC_STACKFRAME - BPF_PPC_STACK_SAVE); +} + +static void bpf_jit_build_epilogue(u32 *image, struct codegen_context *ctx) +{ + int i; + bool new_stack_frame = bpf_has_stack_frame(ctx); + + /* Move result to r3 */ + PPC_MR(3, b2p[BPF_REG_0]); + + /* Restore NVRs */ + for (i = BPF_REG_6; i <= BPF_REG_10; i++) + if (bpf_is_seen_register(ctx, i)) + PPC_BPF_LL(b2p[i], 1, + (new_stack_frame ? BPF_PPC_STACKFRAME : 0) - + (8 * (32 - b2p[i]))); + + /* Restore non-volatile registers used for skb cache */ + if (ctx->seen & SEEN_SKB) { + PPC_BPF_LL(b2p[SKB_HLEN_REG], 1, + BPF_PPC_STACKFRAME - (8 * (32 - b2p[SKB_HLEN_REG]))); + PPC_BPF_LL(b2p[SKB_DATA_REG], 1, + BPF_PPC_STACKFRAME - (8 * (32 - b2p[SKB_DATA_REG]))); + } + + /* Tear down our stack frame */ + if (new_stack_frame) { + PPC_ADDI(1, 1, BPF_PPC_STACKFRAME); + if (ctx->seen & SEEN_FUNC) { + PPC_BPF_LL(0, 1, PPC_LR_STKOFF); + PPC_MTLR(0); + } + } + + PPC_BLR(); +} + +/* Assemble the body code between the prologue & epilogue */ +static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, + struct codegen_context *ctx, + u32 *addrs) +{ + const struct bpf_insn *insn = fp->insnsi; + int flen = fp->len; + int i; + + /* Start of epilogue code - will only be valid 2nd pass onwards */ + u32 exit_addr = addrs[flen]; + + for (i = 0; i < flen; i++) { + u32 code = insn[i].code; + u32 dst_reg = b2p[insn[i].dst_reg]; + u32 src_reg = b2p[insn[i].src_reg]; + s16 off = insn[i].off; + s32 imm = insn[i].imm; + u64 imm64; + u8 *func; + u32 true_cond; + int stack_local_off; + + /* + * addrs[] maps a BPF bytecode address into a real offset from + * the start of the body code. + */ + addrs[i] = ctx->idx * 4; + + /* + * As an optimization, we note down which non-volatile registers + * are used so that we can only save/restore those in our + * prologue and epilogue. We do this here regardless of whether + * the actual BPF instruction uses src/dst registers or not + * (for instance, BPF_CALL does not use them). The expectation + * is that those instructions will have src_reg/dst_reg set to + * 0. Even otherwise, we just lose some prologue/epilogue + * optimization but everything else should work without + * any issues. + */ + if (dst_reg >= 24 && dst_reg <= 31) + bpf_set_seen_register(ctx, insn[i].dst_reg); + if (src_reg >= 24 && src_reg <= 31) + bpf_set_seen_register(ctx, insn[i].src_reg); + + switch (code) { + /* + * Arithmetic operations: ADD/SUB/MUL/DIV/MOD/NEG + */ + case BPF_ALU | BPF_ADD | BPF_X: /* (u32) dst += (u32) src */ + case BPF_ALU64 | BPF_ADD | BPF_X: /* dst += src */ + PPC_ADD(dst_reg, dst_reg, src_reg); + goto bpf_alu32_trunc; + case BPF_ALU | BPF_SUB | BPF_X: /* (u32) dst -= (u32) src */ + case BPF_ALU64 | BPF_SUB | BPF_X: /* dst -= src */ + PPC_SUB(dst_reg, dst_reg, src_reg); + goto bpf_alu32_trunc; + case BPF_ALU | BPF_ADD | BPF_K: /* (u32) dst += (u32) imm */ + case BPF_ALU | BPF_SUB | BPF_K: /* (u32) dst -= (u32) imm */ + case BPF_ALU64 | BPF_ADD | BPF_K: /* dst += imm */ + case BPF_ALU64 | BPF_SUB | BPF_K: /* dst -= imm */ + if (BPF_OP(code) == BPF_SUB) + imm = -imm; + if (imm) { + if (imm >= -32768 && imm < 32768) + PPC_ADDI(dst_reg, dst_reg, IMM_L(imm)); + else { + PPC_LI32(b2p[TMP_REG_1], imm); + PPC_ADD(dst_reg, dst_reg, b2p[TMP_REG_1]); + } + } + goto bpf_alu32_trunc; + case BPF_ALU | BPF_MUL | BPF_X: /* (u32) dst *= (u32) src */ + case BPF_ALU64 | BPF_MUL | BPF_X: /* dst *= src */ + if (BPF_CLASS(code) == BPF_ALU) + PPC_MULW(dst_reg, dst_reg, src_reg); + else + PPC_MULD(dst_reg, dst_reg, src_reg); + goto bpf_alu32_trunc; + case BPF_ALU | BPF_MUL | BPF_K: /* (u32) dst *= (u32) imm */ + case BPF_ALU64 | BPF_MUL | BPF_K: /* dst *= imm */ + if (imm >= -32768 && imm < 32768) + PPC_MULI(dst_reg, dst_reg, IMM_L(imm)); + else { + PPC_LI32(b2p[TMP_REG_1], imm); + if (BPF_CLASS(code) == BPF_ALU) + PPC_MULW(dst_reg, dst_reg, + b2p[TMP_REG_1]); + else + PPC_MULD(dst_reg, dst_reg, + b2p[TMP_REG_1]); + } + goto bpf_alu32_trunc; + case BPF_ALU | BPF_DIV | BPF_X: /* (u32) dst /= (u32) src */ + case BPF_ALU | BPF_MOD | BPF_X: /* (u32) dst %= (u32) src */ + PPC_CMPWI(src_reg, 0); + PPC_BCC_SHORT(COND_NE, (ctx->idx * 4) + 12); + PPC_LI(b2p[BPF_REG_0], 0); + PPC_JMP(exit_addr); + if (BPF_OP(code) == BPF_MOD) { + PPC_DIVWU(b2p[TMP_REG_1], dst_reg, src_reg); + PPC_MULW(b2p[TMP_REG_1], src_reg, + b2p[TMP_REG_1]); + PPC_SUB(dst_reg, dst_reg, b2p[TMP_REG_1]); + } else + PPC_DIVWU(dst_reg, dst_reg, src_reg); + goto bpf_alu32_trunc; + case BPF_ALU64 | BPF_DIV | BPF_X: /* dst /= src */ + case BPF_ALU64 | BPF_MOD | BPF_X: /* dst %= src */ + PPC_CMPDI(src_reg, 0); + PPC_BCC_SHORT(COND_NE, (ctx->idx * 4) + 12); + PPC_LI(b2p[BPF_REG_0], 0); + PPC_JMP(exit_addr); + if (BPF_OP(code) == BPF_MOD) { + PPC_DIVD(b2p[TMP_REG_1], dst_reg, src_reg); + PPC_MULD(b2p[TMP_REG_1], src_reg, + b2p[TMP_REG_1]); + PPC_SUB(dst_reg, dst_reg, b2p[TMP_REG_1]); + } else + PPC_DIVD(dst_reg, dst_reg, src_reg); + break; + case BPF_ALU | BPF_MOD | BPF_K: /* (u32) dst %= (u32) imm */ + case BPF_ALU | BPF_DIV | BPF_K: /* (u32) dst /= (u32) imm */ + case BPF_ALU64 | BPF_MOD | BPF_K: /* dst %= imm */ + case BPF_ALU64 | BPF_DIV | BPF_K: /* dst /= imm */ + if (imm == 0) + return -EINVAL; + else if (imm == 1) + goto bpf_alu32_trunc; + + PPC_LI32(b2p[TMP_REG_1], imm); + switch (BPF_CLASS(code)) { + case BPF_ALU: + if (BPF_OP(code) == BPF_MOD) { + PPC_DIVWU(b2p[TMP_REG_2], dst_reg, + b2p[TMP_REG_1]); + PPC_MULW(b2p[TMP_REG_1], + b2p[TMP_REG_1], + b2p[TMP_REG_2]); + PPC_SUB(dst_reg, dst_reg, + b2p[TMP_REG_1]); + } else + PPC_DIVWU(dst_reg, dst_reg, + b2p[TMP_REG_1]); + break; + case BPF_ALU64: + if (BPF_OP(code) == BPF_MOD) { + PPC_DIVD(b2p[TMP_REG_2], dst_reg, + b2p[TMP_REG_1]); + PPC_MULD(b2p[TMP_REG_1], + b2p[TMP_REG_1], + b2p[TMP_REG_2]); + PPC_SUB(dst_reg, dst_reg, + b2p[TMP_REG_1]); + } else + PPC_DIVD(dst_reg, dst_reg, + b2p[TMP_REG_1]); + break; + } + goto bpf_alu32_trunc; + case BPF_ALU | BPF_NEG: /* (u32) dst = -dst */ + case BPF_ALU64 | BPF_NEG: /* dst = -dst */ + PPC_NEG(dst_reg, dst_reg); + goto bpf_alu32_trunc; + + /* + * Logical operations: AND/OR/XOR/[A]LSH/[A]RSH + */ + case BPF_ALU | BPF_AND | BPF_X: /* (u32) dst = dst & src */ + case BPF_ALU64 | BPF_AND | BPF_X: /* dst = dst & src */ + PPC_AND(dst_reg, dst_reg, src_reg); + goto bpf_alu32_trunc; + case BPF_ALU | BPF_AND | BPF_K: /* (u32) dst = dst & imm */ + case BPF_ALU64 | BPF_AND | BPF_K: /* dst = dst & imm */ + if (!IMM_H(imm)) + PPC_ANDI(dst_reg, dst_reg, IMM_L(imm)); + else { + /* Sign-extended */ + PPC_LI32(b2p[TMP_REG_1], imm); + PPC_AND(dst_reg, dst_reg, b2p[TMP_REG_1]); + } + goto bpf_alu32_trunc; + case BPF_ALU | BPF_OR | BPF_X: /* dst = (u32) dst | (u32) src */ + case BPF_ALU64 | BPF_OR | BPF_X: /* dst = dst | src */ + PPC_OR(dst_reg, dst_reg, src_reg); + goto bpf_alu32_trunc; + case BPF_ALU | BPF_OR | BPF_K:/* dst = (u32) dst | (u32) imm */ + case BPF_ALU64 | BPF_OR | BPF_K:/* dst = dst | imm */ + if (imm < 0 && BPF_CLASS(code) == BPF_ALU64) { + /* Sign-extended */ + PPC_LI32(b2p[TMP_REG_1], imm); + PPC_OR(dst_reg, dst_reg, b2p[TMP_REG_1]); + } else { + if (IMM_L(imm)) + PPC_ORI(dst_reg, dst_reg, IMM_L(imm)); + if (IMM_H(imm)) + PPC_ORIS(dst_reg, dst_reg, IMM_H(imm)); + } + goto bpf_alu32_trunc; + case BPF_ALU | BPF_XOR | BPF_X: /* (u32) dst ^= src */ + case BPF_ALU64 | BPF_XOR | BPF_X: /* dst ^= src */ + PPC_XOR(dst_reg, dst_reg, src_reg); + goto bpf_alu32_trunc; + case BPF_ALU | BPF_XOR | BPF_K: /* (u32) dst ^= (u32) imm */ + case BPF_ALU64 | BPF_XOR | BPF_K: /* dst ^= imm */ + if (imm < 0 && BPF_CLASS(code) == BPF_ALU64) { + /* Sign-extended */ + PPC_LI32(b2p[TMP_REG_1], imm); + PPC_XOR(dst_reg, dst_reg, b2p[TMP_REG_1]); + } else { + if (IMM_L(imm)) + PPC_XORI(dst_reg, dst_reg, IMM_L(imm)); + if (IMM_H(imm)) + PPC_XORIS(dst_reg, dst_reg, IMM_H(imm)); + } + goto bpf_alu32_trunc; + case BPF_ALU | BPF_LSH | BPF_X: /* (u32) dst <<= (u32) src */ + /* slw clears top 32 bits */ + PPC_SLW(dst_reg, dst_reg, src_reg); + break; + case BPF_ALU64 | BPF_LSH | BPF_X: /* dst <<= src; */ + PPC_SLD(dst_reg, dst_reg, src_reg); + break; + case BPF_ALU | BPF_LSH | BPF_K: /* (u32) dst <<== (u32) imm */ + /* with imm 0, we still need to clear top 32 bits */ + PPC_SLWI(dst_reg, dst_reg, imm); + break; + case BPF_ALU64 | BPF_LSH | BPF_K: /* dst <<== imm */ + if (imm != 0) + PPC_SLDI(dst_reg, dst_reg, imm); + break; + case BPF_ALU | BPF_RSH | BPF_X: /* (u32) dst >>= (u32) src */ + PPC_SRW(dst_reg, dst_reg, src_reg); + break; + case BPF_ALU64 | BPF_RSH | BPF_X: /* dst >>= src */ + PPC_SRD(dst_reg, dst_reg, src_reg); + break; + case BPF_ALU | BPF_RSH | BPF_K: /* (u32) dst >>= (u32) imm */ + PPC_SRWI(dst_reg, dst_reg, imm); + break; + case BPF_ALU64 | BPF_RSH | BPF_K: /* dst >>= imm */ + if (imm != 0) + PPC_SRDI(dst_reg, dst_reg, imm); + break; + case BPF_ALU64 | BPF_ARSH | BPF_X: /* (s64) dst >>= src */ + PPC_SRAD(dst_reg, dst_reg, src_reg); + break; + case BPF_ALU64 | BPF_ARSH | BPF_K: /* (s64) dst >>= imm */ + if (imm != 0) + PPC_SRADI(dst_reg, dst_reg, imm); + break; + + /* + * MOV + */ + case BPF_ALU | BPF_MOV | BPF_X: /* (u32) dst = src */ + case BPF_ALU64 | BPF_MOV | BPF_X: /* dst = src */ + PPC_MR(dst_reg, src_reg); + goto bpf_alu32_trunc; + case BPF_ALU | BPF_MOV | BPF_K: /* (u32) dst = imm */ + case BPF_ALU64 | BPF_MOV | BPF_K: /* dst = (s64) imm */ + PPC_LI32(dst_reg, imm); + if (imm < 0) + goto bpf_alu32_trunc; + break; + +bpf_alu32_trunc: + /* Truncate to 32-bits */ + if (BPF_CLASS(code) == BPF_ALU) + PPC_RLWINM(dst_reg, dst_reg, 0, 0, 31); + break; + + /* + * BPF_FROM_BE/LE + */ + case BPF_ALU | BPF_END | BPF_FROM_LE: + case BPF_ALU | BPF_END | BPF_FROM_BE: +#ifdef __BIG_ENDIAN__ + if (BPF_SRC(code) == BPF_FROM_BE) + goto emit_clear; +#else /* !__BIG_ENDIAN__ */ + if (BPF_SRC(code) == BPF_FROM_LE) + goto emit_clear; +#endif + switch (imm) { + case 16: + /* Rotate 8 bits left & mask with 0x0000ff00 */ + PPC_RLWINM(b2p[TMP_REG_1], dst_reg, 8, 16, 23); + /* Rotate 8 bits right & insert LSB to reg */ + PPC_RLWIMI(b2p[TMP_REG_1], dst_reg, 24, 24, 31); + /* Move result back to dst_reg */ + PPC_MR(dst_reg, b2p[TMP_REG_1]); + break; + case 32: + /* + * Rotate word left by 8 bits: + * 2 bytes are already in their final position + * -- byte 2 and 4 (of bytes 1, 2, 3 and 4) + */ + PPC_RLWINM(b2p[TMP_REG_1], dst_reg, 8, 0, 31); + /* Rotate 24 bits and insert byte 1 */ + PPC_RLWIMI(b2p[TMP_REG_1], dst_reg, 24, 0, 7); + /* Rotate 24 bits and insert byte 3 */ + PPC_RLWIMI(b2p[TMP_REG_1], dst_reg, 24, 16, 23); + PPC_MR(dst_reg, b2p[TMP_REG_1]); + break; + case 64: + /* + * Way easier and faster(?) to store the value + * into stack and then use ldbrx + * + * First, determine where in stack we can store + * this: + * - if we have allotted a stack frame, then we + * will utilize the area set aside by + * BPF_PPC_STACK_LOCALS + * - else, we use the area beneath the NV GPR + * save area + * + * ctx->seen will be reliable in pass2, but + * the instructions generated will remain the + * same across all passes + */ + if (bpf_has_stack_frame(ctx)) + stack_local_off = STACK_FRAME_MIN_SIZE; + else + stack_local_off = -(BPF_PPC_STACK_SAVE + 8); + + PPC_STD(dst_reg, 1, stack_local_off); + PPC_ADDI(b2p[TMP_REG_1], 1, stack_local_off); + PPC_LDBRX(dst_reg, 0, b2p[TMP_REG_1]); + break; + } + break; + +emit_clear: + switch (imm) { + case 16: + /* zero-extend 16 bits into 64 bits */ + PPC_RLDICL(dst_reg, dst_reg, 0, 48); + break; + case 32: + /* zero-extend 32 bits into 64 bits */ + PPC_RLDICL(dst_reg, dst_reg, 0, 32); + break; + case 64: + /* nop */ + break; + } + break; + + /* + * BPF_ST(X) + */ + case BPF_STX | BPF_MEM | BPF_B: /* *(u8 *)(dst + off) = src */ + case BPF_ST | BPF_MEM | BPF_B: /* *(u8 *)(dst + off) = imm */ + if (BPF_CLASS(code) == BPF_ST) { + PPC_LI(b2p[TMP_REG_1], imm); + src_reg = b2p[TMP_REG_1]; + } + PPC_STB(src_reg, dst_reg, off); + break; + case BPF_STX | BPF_MEM | BPF_H: /* (u16 *)(dst + off) = src */ + case BPF_ST | BPF_MEM | BPF_H: /* (u16 *)(dst + off) = imm */ + if (BPF_CLASS(code) == BPF_ST) { + PPC_LI(b2p[TMP_REG_1], imm); + src_reg = b2p[TMP_REG_1]; + } + PPC_STH(src_reg, dst_reg, off); + break; + case BPF_STX | BPF_MEM | BPF_W: /* *(u32 *)(dst + off) = src */ + case BPF_ST | BPF_MEM | BPF_W: /* *(u32 *)(dst + off) = imm */ + if (BPF_CLASS(code) == BPF_ST) { + PPC_LI32(b2p[TMP_REG_1], imm); + src_reg = b2p[TMP_REG_1]; + } + PPC_STW(src_reg, dst_reg, off); + break; + case BPF_STX | BPF_MEM | BPF_DW: /* (u64 *)(dst + off) = src */ + case BPF_ST | BPF_MEM | BPF_DW: /* *(u64 *)(dst + off) = imm */ + if (BPF_CLASS(code) == BPF_ST) { + PPC_LI32(b2p[TMP_REG_1], imm); + src_reg = b2p[TMP_REG_1]; + } + PPC_STD(src_reg, dst_reg, off); + break; + + /* + * BPF_STX XADD (atomic_add) + */ + /* *(u32 *)(dst + off) += src */ + case BPF_STX | BPF_XADD | BPF_W: + /* Get EA into TMP_REG_1 */ + PPC_ADDI(b2p[TMP_REG_1], dst_reg, off); + /* error if EA is not word-aligned */ + PPC_ANDI(b2p[TMP_REG_2], b2p[TMP_REG_1], 0x03); + PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + 12); + PPC_LI(b2p[BPF_REG_0], 0); + PPC_JMP(exit_addr); + /* load value from memory into TMP_REG_2 */ + PPC_BPF_LWARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0); + /* add value from src_reg into this */ + PPC_ADD(b2p[TMP_REG_2], b2p[TMP_REG_2], src_reg); + /* store result back */ + PPC_BPF_STWCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]); + /* we're done if this succeeded */ + PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + (7*4)); + /* otherwise, let's try once more */ + PPC_BPF_LWARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0); + PPC_ADD(b2p[TMP_REG_2], b2p[TMP_REG_2], src_reg); + PPC_BPF_STWCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]); + /* exit if the store was not successful */ + PPC_LI(b2p[BPF_REG_0], 0); + PPC_BCC(COND_NE, exit_addr); + break; + /* *(u64 *)(dst + off) += src */ + case BPF_STX | BPF_XADD | BPF_DW: + PPC_ADDI(b2p[TMP_REG_1], dst_reg, off); + /* error if EA is not doubleword-aligned */ + PPC_ANDI(b2p[TMP_REG_2], b2p[TMP_REG_1], 0x07); + PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + (3*4)); + PPC_LI(b2p[BPF_REG_0], 0); + PPC_JMP(exit_addr); + PPC_BPF_LDARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0); + PPC_ADD(b2p[TMP_REG_2], b2p[TMP_REG_2], src_reg); + PPC_BPF_STDCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]); + PPC_BCC_SHORT(COND_EQ, (ctx->idx * 4) + (7*4)); + PPC_BPF_LDARX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1], 0); + PPC_ADD(b2p[TMP_REG_2], b2p[TMP_REG_2], src_reg); + PPC_BPF_STDCX(b2p[TMP_REG_2], 0, b2p[TMP_REG_1]); + PPC_LI(b2p[BPF_REG_0], 0); + PPC_BCC(COND_NE, exit_addr); + break; + + /* + * BPF_LDX + */ + /* dst = *(u8 *)(ul) (src + off) */ + case BPF_LDX | BPF_MEM | BPF_B: + PPC_LBZ(dst_reg, src_reg, off); + break; + /* dst = *(u16 *)(ul) (src + off) */ + case BPF_LDX | BPF_MEM | BPF_H: + PPC_LHZ(dst_reg, src_reg, off); + break; + /* dst = *(u32 *)(ul) (src + off) */ + case BPF_LDX | BPF_MEM | BPF_W: + PPC_LWZ(dst_reg, src_reg, off); + break; + /* dst = *(u64 *)(ul) (src + off) */ + case BPF_LDX | BPF_MEM | BPF_DW: + PPC_LD(dst_reg, src_reg, off); + break; + + /* + * Doubleword load + * 16 byte instruction that uses two 'struct bpf_insn' + */ + case BPF_LD | BPF_IMM | BPF_DW: /* dst = (u64) imm */ + imm64 = ((u64)(u32) insn[i].imm) | + (((u64)(u32) insn[i+1].imm) << 32); + /* Adjust for two bpf instructions */ + addrs[++i] = ctx->idx * 4; + PPC_LI64(dst_reg, imm64); + break; + + /* + * Return/Exit + */ + case BPF_JMP | BPF_EXIT: + /* + * If this isn't the very last instruction, branch to + * the epilogue. If we _are_ the last instruction, + * we'll just fall through to the epilogue. + */ + if (i != flen - 1) + PPC_JMP(exit_addr); + /* else fall through to the epilogue */ + break; + + /* + * Call kernel helper + */ + case BPF_JMP | BPF_CALL: + ctx->seen |= SEEN_FUNC; + func = (u8 *) __bpf_call_base + imm; + + /* Save skb pointer if we need to re-cache skb data */ + if (bpf_helper_changes_skb_data(func)) + PPC_BPF_STL(3, 1, STACK_FRAME_MIN_SIZE); + + bpf_jit_emit_func_call(image, ctx, (u64)func); + + /* move return value from r3 to BPF_REG_0 */ + PPC_MR(b2p[BPF_REG_0], 3); + + /* refresh skb cache */ + if (bpf_helper_changes_skb_data(func)) { + /* reload skb pointer to r3 */ + PPC_BPF_LL(3, 1, STACK_FRAME_MIN_SIZE); + bpf_jit_emit_skb_loads(image, ctx); + } + break; + + /* + * Jumps and branches + */ + case BPF_JMP | BPF_JA: + PPC_JMP(addrs[i + 1 + off]); + break; + + case BPF_JMP | BPF_JGT | BPF_K: + case BPF_JMP | BPF_JGT | BPF_X: + case BPF_JMP | BPF_JSGT | BPF_K: + case BPF_JMP | BPF_JSGT | BPF_X: + true_cond = COND_GT; + goto cond_branch; + case BPF_JMP | BPF_JGE | BPF_K: + case BPF_JMP | BPF_JGE | BPF_X: + case BPF_JMP | BPF_JSGE | BPF_K: + case BPF_JMP | BPF_JSGE | BPF_X: + true_cond = COND_GE; + goto cond_branch; + case BPF_JMP | BPF_JEQ | BPF_K: + case BPF_JMP | BPF_JEQ | BPF_X: + true_cond = COND_EQ; + goto cond_branch; + case BPF_JMP | BPF_JNE | BPF_K: + case BPF_JMP | BPF_JNE | BPF_X: + true_cond = COND_NE; + goto cond_branch; + case BPF_JMP | BPF_JSET | BPF_K: + case BPF_JMP | BPF_JSET | BPF_X: + true_cond = COND_NE; + /* Fall through */ + +cond_branch: + switch (code) { + case BPF_JMP | BPF_JGT | BPF_X: + case BPF_JMP | BPF_JGE | BPF_X: + case BPF_JMP | BPF_JEQ | BPF_X: + case BPF_JMP | BPF_JNE | BPF_X: + /* unsigned comparison */ + PPC_CMPLD(dst_reg, src_reg); + break; + case BPF_JMP | BPF_JSGT | BPF_X: + case BPF_JMP | BPF_JSGE | BPF_X: + /* signed comparison */ + PPC_CMPD(dst_reg, src_reg); + break; + case BPF_JMP | BPF_JSET | BPF_X: + PPC_AND_DOT(b2p[TMP_REG_1], dst_reg, src_reg); + break; + case BPF_JMP | BPF_JNE | BPF_K: + case BPF_JMP | BPF_JEQ | BPF_K: + case BPF_JMP | BPF_JGT | BPF_K: + case BPF_JMP | BPF_JGE | BPF_K: + /* + * Need sign-extended load, so only positive + * values can be used as imm in cmpldi + */ + if (imm >= 0 && imm < 32768) + PPC_CMPLDI(dst_reg, imm); + else { + /* sign-extending load */ + PPC_LI32(b2p[TMP_REG_1], imm); + /* ... but unsigned comparison */ + PPC_CMPLD(dst_reg, b2p[TMP_REG_1]); + } + break; + case BPF_JMP | BPF_JSGT | BPF_K: + case BPF_JMP | BPF_JSGE | BPF_K: + /* + * signed comparison, so any 16-bit value + * can be used in cmpdi + */ + if (imm >= -32768 && imm < 32768) + PPC_CMPDI(dst_reg, imm); + else { + PPC_LI32(b2p[TMP_REG_1], imm); + PPC_CMPD(dst_reg, b2p[TMP_REG_1]); + } + break; + case BPF_JMP | BPF_JSET | BPF_K: + /* andi does not sign-extend the immediate */ + if (imm >= 0 && imm < 32768) + /* PPC_ANDI is _only/always_ dot-form */ + PPC_ANDI(b2p[TMP_REG_1], dst_reg, imm); + else { + PPC_LI32(b2p[TMP_REG_1], imm); + PPC_AND_DOT(b2p[TMP_REG_1], dst_reg, + b2p[TMP_REG_1]); + } + break; + } + PPC_BCC(true_cond, addrs[i + 1 + off]); + break; + + /* + * Loads from packet header/data + * Assume 32-bit input value in imm and X (src_reg) + */ + + /* Absolute loads */ + case BPF_LD | BPF_W | BPF_ABS: + func = (u8 *)CHOOSE_LOAD_FUNC(imm, sk_load_word); + goto common_load_abs; + case BPF_LD | BPF_H | BPF_ABS: + func = (u8 *)CHOOSE_LOAD_FUNC(imm, sk_load_half); + goto common_load_abs; + case BPF_LD | BPF_B | BPF_ABS: + func = (u8 *)CHOOSE_LOAD_FUNC(imm, sk_load_byte); +common_load_abs: + /* + * Load from [imm] + * Load into r4, which can just be passed onto + * skb load helpers as the second parameter + */ + PPC_LI32(4, imm); + goto common_load; + + /* Indirect loads */ + case BPF_LD | BPF_W | BPF_IND: + func = (u8 *)sk_load_word; + goto common_load_ind; + case BPF_LD | BPF_H | BPF_IND: + func = (u8 *)sk_load_half; + goto common_load_ind; + case BPF_LD | BPF_B | BPF_IND: + func = (u8 *)sk_load_byte; +common_load_ind: + /* + * Load from [src_reg + imm] + * Treat src_reg as a 32-bit value + */ + PPC_EXTSW(4, src_reg); + if (imm) { + if (imm >= -32768 && imm < 32768) + PPC_ADDI(4, 4, IMM_L(imm)); + else { + PPC_LI32(b2p[TMP_REG_1], imm); + PPC_ADD(4, 4, b2p[TMP_REG_1]); + } + } + +common_load: + ctx->seen |= SEEN_SKB; + ctx->seen |= SEEN_FUNC; + bpf_jit_emit_func_call(image, ctx, (u64)func); + + /* + * Helper returns 'lt' condition on error, and an + * appropriate return value in BPF_REG_0 + */ + PPC_BCC(COND_LT, exit_addr); + break; + + /* + * TODO: Tail call + */ + case BPF_JMP | BPF_CALL | BPF_X: + + default: + /* + * The filter contains something cruel & unusual. + * We don't handle it, but also there shouldn't be + * anything missing from our list. + */ + pr_err_ratelimited("eBPF filter opcode %04x (@%d) unsupported\n", + code, i); + return -ENOTSUPP; + } + } + + /* Set end-of-body-code address for exit. */ + addrs[i] = ctx->idx * 4; + + return 0; +} + +void bpf_jit_compile(struct bpf_prog *fp) { } + +struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp) +{ + u32 proglen; + u32 alloclen; + u8 *image = NULL; + u32 *code_base; + u32 *addrs; + struct codegen_context cgctx; + int pass; + int flen; + struct bpf_binary_header *bpf_hdr; + + if (!bpf_jit_enable) + return fp; + + flen = fp->len; + addrs = kzalloc((flen+1) * sizeof(*addrs), GFP_KERNEL); + if (addrs == NULL) + return fp; + + cgctx.idx = 0; + cgctx.seen = 0; + /* Scouting faux-generate pass 0 */ + if (bpf_jit_build_body(fp, 0, &cgctx, addrs)) + /* We hit something illegal or unsupported. */ + goto out; + + /* + * Pretend to build prologue, given the features we've seen. This will + * update ctgtx.idx as it pretends to output instructions, then we can + * calculate total size from idx. + */ + bpf_jit_build_prologue(0, &cgctx); + bpf_jit_build_epilogue(0, &cgctx); + + proglen = cgctx.idx * 4; + alloclen = proglen + FUNCTION_DESCR_SIZE; + + bpf_hdr = bpf_jit_binary_alloc(alloclen, &image, 4, + bpf_jit_fill_ill_insns); + if (!bpf_hdr) + goto out; + + code_base = (u32 *)(image + FUNCTION_DESCR_SIZE); + + /* Code generation passes 1-2 */ + for (pass = 1; pass < 3; pass++) { + /* Now build the prologue, body code & epilogue for real. */ + cgctx.idx = 0; + bpf_jit_build_prologue(code_base, &cgctx); + bpf_jit_build_body(fp, code_base, &cgctx, addrs); + bpf_jit_build_epilogue(code_base, &cgctx); + + if (bpf_jit_enable > 1) + pr_info("Pass %d: shrink = %d, seen = 0x%x\n", pass, + proglen - (cgctx.idx * 4), cgctx.seen); + } + + if (bpf_jit_enable > 1) + /* + * Note that we output the base address of the code_base + * rather than image, since opcodes are in code_base. + */ + bpf_jit_dump(flen, proglen, pass, code_base); + + if (image) { + bpf_flush_icache(bpf_hdr, image + alloclen); +#ifdef PPC64_ELF_ABI_v1 + /* Function descriptor nastiness: Address + TOC */ + ((u64 *)image)[0] = (u64)code_base; + ((u64 *)image)[1] = local_paca->kernel_toc; +#endif + fp->bpf_func = (void *)image; + fp->jited = 1; + } + +out: + kfree(addrs); + return fp; +} + +void bpf_jit_free(struct bpf_prog *fp) +{ + unsigned long addr = (unsigned long)fp->bpf_func & PAGE_MASK; + struct bpf_binary_header *bpf_hdr = (void *)addr; + + if (fp->jited) + bpf_jit_binary_free(bpf_hdr); + + bpf_prog_unlock_free(fp); +} diff --git a/arch/powerpc/oprofile/cell/spu_task_sync.c b/arch/powerpc/oprofile/cell/spu_task_sync.c index ed7b0977072a..ef2142ff7dbd 100644 --- a/arch/powerpc/oprofile/cell/spu_task_sync.c +++ b/arch/powerpc/oprofile/cell/spu_task_sync.c @@ -51,7 +51,7 @@ static void spu_buff_add(unsigned long int value, int spu) * That way we can tell the difference between the * buffer being full versus empty. * - * ASSUPTION: the buffer_lock is held when this function + * ASSUMPTION: the buffer_lock is held when this function * is called to lock the buffer, head and tail. */ int full = 1; diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile index 77b6394a7c50..f102d5370101 100644 --- a/arch/powerpc/perf/Makefile +++ b/arch/powerpc/perf/Makefile @@ -5,7 +5,7 @@ obj-$(CONFIG_PERF_EVENTS) += callchain.o perf_regs.o obj-$(CONFIG_PPC_PERF_CTRS) += core-book3s.o bhrb.o obj64-$(CONFIG_PPC_PERF_CTRS) += power4-pmu.o ppc970-pmu.o power5-pmu.o \ power5+-pmu.o power6-pmu.o power7-pmu.o \ - power8-pmu.o + isa207-common.o power8-pmu.o power9-pmu.o obj32-$(CONFIG_PPC_PERF_CTRS) += mpc7450-pmu.o obj-$(CONFIG_FSL_EMB_PERF_EVENT) += core-fsl-emb.o diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index ffd61d55fb25..4ed377f0f7b2 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -992,7 +992,7 @@ static u64 check_and_compute_delta(u64 prev, u64 val) * than the previous value it will cause the delta and the counter to * have bogus values unless we rolled a counter over. If a coutner is * rolled back, it will be smaller, but within 256, which is the maximum - * number of events to rollback at once. If we dectect a rollback + * number of events to rollback at once. If we detect a rollback * return 0. This can lead to a small lack of precision in the * counters. */ diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c index 2da41b78cb6d..7b2ca16b1eb4 100644 --- a/arch/powerpc/perf/hv-24x7.c +++ b/arch/powerpc/perf/hv-24x7.c @@ -1298,7 +1298,7 @@ static void h_24x7_event_read(struct perf_event *event) __this_cpu_write(hv_24x7_txn_err, ret); } else { /* - * Assoicate the event with the HCALL request index, + * Associate the event with the HCALL request index, * so ->commit_txn() can quickly find/update count. */ i = request_buffer->num_requests - 1; diff --git a/arch/powerpc/perf/hv-24x7.h b/arch/powerpc/perf/hv-24x7.h index 791455e7f5cf..634ef4082cdc 100644 --- a/arch/powerpc/perf/hv-24x7.h +++ b/arch/powerpc/perf/hv-24x7.h @@ -66,7 +66,7 @@ struct hv_24x7_result_element { /* -1 if @performance_domain does not refer to a virtual processor */ __be32 lpar_cfg_instance_id; - /* size = @result_element_data_size of cointaining result. */ + /* size = @result_element_data_size of containing result. */ __u64 element_data[1]; } __packed; diff --git a/arch/powerpc/perf/isa207-common.c b/arch/powerpc/perf/isa207-common.c new file mode 100644 index 000000000000..6143c99f3ec5 --- /dev/null +++ b/arch/powerpc/perf/isa207-common.c @@ -0,0 +1,263 @@ +/* + * Common Performance counter support functions for PowerISA v2.07 processors. + * + * Copyright 2009 Paul Mackerras, IBM Corporation. + * Copyright 2013 Michael Ellerman, IBM Corporation. + * Copyright 2016 Madhavan Srinivasan, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#include "isa207-common.h" + +static inline bool event_is_fab_match(u64 event) +{ + /* Only check pmc, unit and pmcxsel, ignore the edge bit (0) */ + event &= 0xff0fe; + + /* PM_MRK_FAB_RSP_MATCH & PM_MRK_FAB_RSP_MATCH_CYC */ + return (event == 0x30056 || event == 0x4f052); +} + +int isa207_get_constraint(u64 event, unsigned long *maskp, unsigned long *valp) +{ + unsigned int unit, pmc, cache, ebb; + unsigned long mask, value; + + mask = value = 0; + + if (event & ~EVENT_VALID_MASK) + return -1; + + pmc = (event >> EVENT_PMC_SHIFT) & EVENT_PMC_MASK; + unit = (event >> EVENT_UNIT_SHIFT) & EVENT_UNIT_MASK; + cache = (event >> EVENT_CACHE_SEL_SHIFT) & EVENT_CACHE_SEL_MASK; + ebb = (event >> EVENT_EBB_SHIFT) & EVENT_EBB_MASK; + + if (pmc) { + u64 base_event; + + if (pmc > 6) + return -1; + + /* Ignore Linux defined bits when checking event below */ + base_event = event & ~EVENT_LINUX_MASK; + + if (pmc >= 5 && base_event != 0x500fa && + base_event != 0x600f4) + return -1; + + mask |= CNST_PMC_MASK(pmc); + value |= CNST_PMC_VAL(pmc); + } + + if (pmc <= 4) { + /* + * Add to number of counters in use. Note this includes events with + * a PMC of 0 - they still need a PMC, it's just assigned later. + * Don't count events on PMC 5 & 6, there is only one valid event + * on each of those counters, and they are handled above. + */ + mask |= CNST_NC_MASK; + value |= CNST_NC_VAL; + } + + if (unit >= 6 && unit <= 9) { + /* + * L2/L3 events contain a cache selector field, which is + * supposed to be programmed into MMCRC. However MMCRC is only + * HV writable, and there is no API for guest kernels to modify + * it. The solution is for the hypervisor to initialise the + * field to zeroes, and for us to only ever allow events that + * have a cache selector of zero. The bank selector (bit 3) is + * irrelevant, as long as the rest of the value is 0. + */ + if (cache & 0x7) + return -1; + + } else if (event & EVENT_IS_L1) { + mask |= CNST_L1_QUAL_MASK; + value |= CNST_L1_QUAL_VAL(cache); + } + + if (event & EVENT_IS_MARKED) { + mask |= CNST_SAMPLE_MASK; + value |= CNST_SAMPLE_VAL(event >> EVENT_SAMPLE_SHIFT); + } + + /* + * Special case for PM_MRK_FAB_RSP_MATCH and PM_MRK_FAB_RSP_MATCH_CYC, + * the threshold control bits are used for the match value. + */ + if (event_is_fab_match(event)) { + mask |= CNST_FAB_MATCH_MASK; + value |= CNST_FAB_MATCH_VAL(event >> EVENT_THR_CTL_SHIFT); + } else { + /* + * Check the mantissa upper two bits are not zero, unless the + * exponent is also zero. See the THRESH_CMP_MANTISSA doc. + */ + unsigned int cmp, exp; + + cmp = (event >> EVENT_THR_CMP_SHIFT) & EVENT_THR_CMP_MASK; + exp = cmp >> 7; + + if (exp && (cmp & 0x60) == 0) + return -1; + + mask |= CNST_THRESH_MASK; + value |= CNST_THRESH_VAL(event >> EVENT_THRESH_SHIFT); + } + + if (!pmc && ebb) + /* EBB events must specify the PMC */ + return -1; + + if (event & EVENT_WANTS_BHRB) { + if (!ebb) + /* Only EBB events can request BHRB */ + return -1; + + mask |= CNST_IFM_MASK; + value |= CNST_IFM_VAL(event >> EVENT_IFM_SHIFT); + } + + /* + * All events must agree on EBB, either all request it or none. + * EBB events are pinned & exclusive, so this should never actually + * hit, but we leave it as a fallback in case. + */ + mask |= CNST_EBB_VAL(ebb); + value |= CNST_EBB_MASK; + + *maskp = mask; + *valp = value; + + return 0; +} + +int isa207_compute_mmcr(u64 event[], int n_ev, + unsigned int hwc[], unsigned long mmcr[], + struct perf_event *pevents[]) +{ + unsigned long mmcra, mmcr1, mmcr2, unit, combine, psel, cache, val; + unsigned int pmc, pmc_inuse; + int i; + + pmc_inuse = 0; + + /* First pass to count resource use */ + for (i = 0; i < n_ev; ++i) { + pmc = (event[i] >> EVENT_PMC_SHIFT) & EVENT_PMC_MASK; + if (pmc) + pmc_inuse |= 1 << pmc; + } + + /* In continuous sampling mode, update SDAR on TLB miss */ + mmcra = MMCRA_SDAR_MODE_TLB; + mmcr1 = mmcr2 = 0; + + /* Second pass: assign PMCs, set all MMCR1 fields */ + for (i = 0; i < n_ev; ++i) { + pmc = (event[i] >> EVENT_PMC_SHIFT) & EVENT_PMC_MASK; + unit = (event[i] >> EVENT_UNIT_SHIFT) & EVENT_UNIT_MASK; + combine = (event[i] >> EVENT_COMBINE_SHIFT) & EVENT_COMBINE_MASK; + psel = event[i] & EVENT_PSEL_MASK; + + if (!pmc) { + for (pmc = 1; pmc <= 4; ++pmc) { + if (!(pmc_inuse & (1 << pmc))) + break; + } + + pmc_inuse |= 1 << pmc; + } + + if (pmc <= 4) { + mmcr1 |= unit << MMCR1_UNIT_SHIFT(pmc); + mmcr1 |= combine << MMCR1_COMBINE_SHIFT(pmc); + mmcr1 |= psel << MMCR1_PMCSEL_SHIFT(pmc); + } + + if (event[i] & EVENT_IS_L1) { + cache = event[i] >> EVENT_CACHE_SEL_SHIFT; + mmcr1 |= (cache & 1) << MMCR1_IC_QUAL_SHIFT; + cache >>= 1; + mmcr1 |= (cache & 1) << MMCR1_DC_QUAL_SHIFT; + } + + if (event[i] & EVENT_IS_MARKED) { + mmcra |= MMCRA_SAMPLE_ENABLE; + + val = (event[i] >> EVENT_SAMPLE_SHIFT) & EVENT_SAMPLE_MASK; + if (val) { + mmcra |= (val & 3) << MMCRA_SAMP_MODE_SHIFT; + mmcra |= (val >> 2) << MMCRA_SAMP_ELIG_SHIFT; + } + } + + /* + * PM_MRK_FAB_RSP_MATCH and PM_MRK_FAB_RSP_MATCH_CYC, + * the threshold bits are used for the match value. + */ + if (event_is_fab_match(event[i])) { + mmcr1 |= ((event[i] >> EVENT_THR_CTL_SHIFT) & + EVENT_THR_CTL_MASK) << MMCR1_FAB_SHIFT; + } else { + val = (event[i] >> EVENT_THR_CTL_SHIFT) & EVENT_THR_CTL_MASK; + mmcra |= val << MMCRA_THR_CTL_SHIFT; + val = (event[i] >> EVENT_THR_SEL_SHIFT) & EVENT_THR_SEL_MASK; + mmcra |= val << MMCRA_THR_SEL_SHIFT; + val = (event[i] >> EVENT_THR_CMP_SHIFT) & EVENT_THR_CMP_MASK; + mmcra |= val << MMCRA_THR_CMP_SHIFT; + } + + if (event[i] & EVENT_WANTS_BHRB) { + val = (event[i] >> EVENT_IFM_SHIFT) & EVENT_IFM_MASK; + mmcra |= val << MMCRA_IFM_SHIFT; + } + + if (pevents[i]->attr.exclude_user) + mmcr2 |= MMCR2_FCP(pmc); + + if (pevents[i]->attr.exclude_hv) + mmcr2 |= MMCR2_FCH(pmc); + + if (pevents[i]->attr.exclude_kernel) { + if (cpu_has_feature(CPU_FTR_HVMODE)) + mmcr2 |= MMCR2_FCH(pmc); + else + mmcr2 |= MMCR2_FCS(pmc); + } + + hwc[i] = pmc - 1; + } + + /* Return MMCRx values */ + mmcr[0] = 0; + + /* pmc_inuse is 1-based */ + if (pmc_inuse & 2) + mmcr[0] = MMCR0_PMC1CE; + + if (pmc_inuse & 0x7c) + mmcr[0] |= MMCR0_PMCjCE; + + /* If we're not using PMC 5 or 6, freeze them */ + if (!(pmc_inuse & 0x60)) + mmcr[0] |= MMCR0_FC56; + + mmcr[1] = mmcr1; + mmcr[2] = mmcra; + mmcr[3] = mmcr2; + + return 0; +} + +void isa207_disable_pmc(unsigned int pmc, unsigned long mmcr[]) +{ + if (pmc <= 3) + mmcr[1] &= ~(0xffUL << MMCR1_PMCSEL_SHIFT(pmc + 1)); +} diff --git a/arch/powerpc/perf/isa207-common.h b/arch/powerpc/perf/isa207-common.h new file mode 100644 index 000000000000..4d0a4e5017c2 --- /dev/null +++ b/arch/powerpc/perf/isa207-common.h @@ -0,0 +1,236 @@ +/* + * Copyright 2009 Paul Mackerras, IBM Corporation. + * Copyright 2013 Michael Ellerman, IBM Corporation. + * Copyright 2016 Madhavan Srinivasan, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or any later version. + */ + +#ifndef _LINUX_POWERPC_PERF_ISA207_COMMON_H_ +#define _LINUX_POWERPC_PERF_ISA207_COMMON_H_ + +#include <linux/kernel.h> +#include <linux/perf_event.h> +#include <asm/firmware.h> +#include <asm/cputable.h> + +/* + * Raw event encoding for PowerISA v2.07: + * + * 60 56 52 48 44 40 36 32 + * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | + * | | [ ] [ thresh_cmp ] [ thresh_ctl ] + * | | | | + * | | *- IFM (Linux) thresh start/stop OR FAB match -* + * | *- BHRB (Linux) + * *- EBB (Linux) + * + * 28 24 20 16 12 8 4 0 + * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | + * [ ] [ sample ] [cache] [ pmc ] [unit ] c m [ pmcxsel ] + * | | | | | + * | | | | *- mark + * | | *- L1/L2/L3 cache_sel | + * | | | + * | *- sampling mode for marked events *- combine + * | + * *- thresh_sel + * + * Below uses IBM bit numbering. + * + * MMCR1[x:y] = unit (PMCxUNIT) + * MMCR1[x] = combine (PMCxCOMB) + * + * if pmc == 3 and unit == 0 and pmcxsel[0:6] == 0b0101011 + * # PM_MRK_FAB_RSP_MATCH + * MMCR1[20:27] = thresh_ctl (FAB_CRESP_MATCH / FAB_TYPE_MATCH) + * else if pmc == 4 and unit == 0xf and pmcxsel[0:6] == 0b0101001 + * # PM_MRK_FAB_RSP_MATCH_CYC + * MMCR1[20:27] = thresh_ctl (FAB_CRESP_MATCH / FAB_TYPE_MATCH) + * else + * MMCRA[48:55] = thresh_ctl (THRESH START/END) + * + * if thresh_sel: + * MMCRA[45:47] = thresh_sel + * + * if thresh_cmp: + * MMCRA[22:24] = thresh_cmp[0:2] + * MMCRA[25:31] = thresh_cmp[3:9] + * + * if unit == 6 or unit == 7 + * MMCRC[53:55] = cache_sel[1:3] (L2EVENT_SEL) + * else if unit == 8 or unit == 9: + * if cache_sel[0] == 0: # L3 bank + * MMCRC[47:49] = cache_sel[1:3] (L3EVENT_SEL0) + * else if cache_sel[0] == 1: + * MMCRC[50:51] = cache_sel[2:3] (L3EVENT_SEL1) + * else if cache_sel[1]: # L1 event + * MMCR1[16] = cache_sel[2] +Â * MMCR1[17] = cache_sel[3] + * + * if mark: + * MMCRA[63] = 1 (SAMPLE_ENABLE) + * MMCRA[57:59] = sample[0:2] (RAND_SAMP_ELIG) +Â * MMCRA[61:62] = sample[3:4] (RAND_SAMP_MODE) + * + * if EBB and BHRB: + * MMCRA[32:33] = IFM + * + */ + +#define EVENT_EBB_MASK 1ull +#define EVENT_EBB_SHIFT PERF_EVENT_CONFIG_EBB_SHIFT +#define EVENT_BHRB_MASK 1ull +#define EVENT_BHRB_SHIFT 62 +#define EVENT_WANTS_BHRB (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT) +#define EVENT_IFM_MASK 3ull +#define EVENT_IFM_SHIFT 60 +#define EVENT_THR_CMP_SHIFT 40 /* Threshold CMP value */ +#define EVENT_THR_CMP_MASK 0x3ff +#define EVENT_THR_CTL_SHIFT 32 /* Threshold control value (start/stop) */ +#define EVENT_THR_CTL_MASK 0xffull +#define EVENT_THR_SEL_SHIFT 29 /* Threshold select value */ +#define EVENT_THR_SEL_MASK 0x7 +#define EVENT_THRESH_SHIFT 29 /* All threshold bits */ +#define EVENT_THRESH_MASK 0x1fffffull +#define EVENT_SAMPLE_SHIFT 24 /* Sampling mode & eligibility */ +#define EVENT_SAMPLE_MASK 0x1f +#define EVENT_CACHE_SEL_SHIFT 20 /* L2/L3 cache select */ +#define EVENT_CACHE_SEL_MASK 0xf +#define EVENT_IS_L1 (4 << EVENT_CACHE_SEL_SHIFT) +#define EVENT_PMC_SHIFT 16 /* PMC number (1-based) */ +#define EVENT_PMC_MASK 0xf +#define EVENT_UNIT_SHIFT 12 /* Unit */ +#define EVENT_UNIT_MASK 0xf +#define EVENT_COMBINE_SHIFT 11 /* Combine bit */ +#define EVENT_COMBINE_MASK 0x1 +#define EVENT_MARKED_SHIFT 8 /* Marked bit */ +#define EVENT_MARKED_MASK 0x1 +#define EVENT_IS_MARKED (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) +#define EVENT_PSEL_MASK 0xff /* PMCxSEL value */ + +/* Bits defined by Linux */ +#define EVENT_LINUX_MASK \ + ((EVENT_EBB_MASK << EVENT_EBB_SHIFT) | \ + (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT) | \ + (EVENT_IFM_MASK << EVENT_IFM_SHIFT)) + +#define EVENT_VALID_MASK \ + ((EVENT_THRESH_MASK << EVENT_THRESH_SHIFT) | \ + (EVENT_SAMPLE_MASK << EVENT_SAMPLE_SHIFT) | \ + (EVENT_CACHE_SEL_MASK << EVENT_CACHE_SEL_SHIFT) | \ + (EVENT_PMC_MASK << EVENT_PMC_SHIFT) | \ + (EVENT_UNIT_MASK << EVENT_UNIT_SHIFT) | \ + (EVENT_COMBINE_MASK << EVENT_COMBINE_SHIFT) | \ + (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | \ + EVENT_LINUX_MASK | \ + EVENT_PSEL_MASK) + +#define ONLY_PLM \ + (PERF_SAMPLE_BRANCH_USER |\ + PERF_SAMPLE_BRANCH_KERNEL |\ + PERF_SAMPLE_BRANCH_HV) + +/* + * Layout of constraint bits: + * + * 60 56 52 48 44 40 36 32 + * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | + * [ fab_match ] [ thresh_cmp ] [ thresh_ctl ] [ ] + * | + * thresh_sel -* + * + * 28 24 20 16 12 8 4 0 + * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | + * [ ] | [ ] [ sample ] [ ] [6] [5] [4] [3] [2] [1] + * | | | | + * BHRB IFM -* | | | Count of events for each PMC. + * EBB -* | | p1, p2, p3, p4, p5, p6. + * L1 I/D qualifier -* | + * nc - number of counters -* + * + * The PMC fields P1..P6, and NC, are adder fields. As we accumulate constraints + * we want the low bit of each field to be added to any existing value. + * + * Everything else is a value field. + */ + +#define CNST_FAB_MATCH_VAL(v) (((v) & EVENT_THR_CTL_MASK) << 56) +#define CNST_FAB_MATCH_MASK CNST_FAB_MATCH_VAL(EVENT_THR_CTL_MASK) + +/* We just throw all the threshold bits into the constraint */ +#define CNST_THRESH_VAL(v) (((v) & EVENT_THRESH_MASK) << 32) +#define CNST_THRESH_MASK CNST_THRESH_VAL(EVENT_THRESH_MASK) + +#define CNST_EBB_VAL(v) (((v) & EVENT_EBB_MASK) << 24) +#define CNST_EBB_MASK CNST_EBB_VAL(EVENT_EBB_MASK) + +#define CNST_IFM_VAL(v) (((v) & EVENT_IFM_MASK) << 25) +#define CNST_IFM_MASK CNST_IFM_VAL(EVENT_IFM_MASK) + +#define CNST_L1_QUAL_VAL(v) (((v) & 3) << 22) +#define CNST_L1_QUAL_MASK CNST_L1_QUAL_VAL(3) + +#define CNST_SAMPLE_VAL(v) (((v) & EVENT_SAMPLE_MASK) << 16) +#define CNST_SAMPLE_MASK CNST_SAMPLE_VAL(EVENT_SAMPLE_MASK) + +/* + * For NC we are counting up to 4 events. This requires three bits, and we need + * the fifth event to overflow and set the 4th bit. To achieve that we bias the + * fields by 3 in test_adder. + */ +#define CNST_NC_SHIFT 12 +#define CNST_NC_VAL (1 << CNST_NC_SHIFT) +#define CNST_NC_MASK (8 << CNST_NC_SHIFT) +#define ISA207_TEST_ADDER (3 << CNST_NC_SHIFT) + +/* + * For the per-PMC fields we have two bits. The low bit is added, so if two + * events ask for the same PMC the sum will overflow, setting the high bit, + * indicating an error. So our mask sets the high bit. + */ +#define CNST_PMC_SHIFT(pmc) ((pmc - 1) * 2) +#define CNST_PMC_VAL(pmc) (1 << CNST_PMC_SHIFT(pmc)) +#define CNST_PMC_MASK(pmc) (2 << CNST_PMC_SHIFT(pmc)) + +/* Our add_fields is defined as: */ +#define ISA207_ADD_FIELDS \ + CNST_PMC_VAL(1) | CNST_PMC_VAL(2) | CNST_PMC_VAL(3) | \ + CNST_PMC_VAL(4) | CNST_PMC_VAL(5) | CNST_PMC_VAL(6) | CNST_NC_VAL + + +/* Bits in MMCR1 for PowerISA v2.07 */ +#define MMCR1_UNIT_SHIFT(pmc) (60 - (4 * ((pmc) - 1))) +#define MMCR1_COMBINE_SHIFT(pmc) (35 - ((pmc) - 1)) +#define MMCR1_PMCSEL_SHIFT(pmc) (24 - (((pmc) - 1)) * 8) +#define MMCR1_FAB_SHIFT 36 +#define MMCR1_DC_QUAL_SHIFT 47 +#define MMCR1_IC_QUAL_SHIFT 46 + +/* Bits in MMCRA for PowerISA v2.07 */ +#define MMCRA_SAMP_MODE_SHIFT 1 +#define MMCRA_SAMP_ELIG_SHIFT 4 +#define MMCRA_THR_CTL_SHIFT 8 +#define MMCRA_THR_SEL_SHIFT 16 +#define MMCRA_THR_CMP_SHIFT 32 +#define MMCRA_SDAR_MODE_TLB (1ull << 42) +#define MMCRA_IFM_SHIFT 30 + +/* Bits in MMCR2 for PowerISA v2.07 */ +#define MMCR2_FCS(pmc) (1ull << (63 - (((pmc) - 1) * 9))) +#define MMCR2_FCP(pmc) (1ull << (62 - (((pmc) - 1) * 9))) +#define MMCR2_FCH(pmc) (1ull << (57 - (((pmc) - 1) * 9))) + +#define MAX_ALT 2 +#define MAX_PMU_COUNTERS 6 + +int isa207_get_constraint(u64 event, unsigned long *maskp, unsigned long *valp); +int isa207_compute_mmcr(u64 event[], int n_ev, + unsigned int hwc[], unsigned long mmcr[], + struct perf_event *pevents[]); +void isa207_disable_pmc(unsigned int pmc, unsigned long mmcr[]); + +#endif diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c index 7cf3b4378192..5fde2b192fec 100644 --- a/arch/powerpc/perf/power8-pmu.c +++ b/arch/powerpc/perf/power8-pmu.c @@ -12,10 +12,7 @@ #define pr_fmt(fmt) "power8-pmu: " fmt -#include <linux/kernel.h> -#include <linux/perf_event.h> -#include <asm/firmware.h> -#include <asm/cputable.h> +#include "isa207-common.h" /* * Some power8 event codes. @@ -28,465 +25,11 @@ enum { #undef EVENT -/* - * Raw event encoding for POWER8: - * - * 60 56 52 48 44 40 36 32 - * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - * | | [ ] [ thresh_cmp ] [ thresh_ctl ] - * | | | | - * | | *- IFM (Linux) thresh start/stop OR FAB match -* - * | *- BHRB (Linux) - * *- EBB (Linux) - * - * 28 24 20 16 12 8 4 0 - * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - * [ ] [ sample ] [cache] [ pmc ] [unit ] c m [ pmcxsel ] - * | | | | | - * | | | | *- mark - * | | *- L1/L2/L3 cache_sel | - * | | | - * | *- sampling mode for marked events *- combine - * | - * *- thresh_sel - * - * Below uses IBM bit numbering. - * - * MMCR1[x:y] = unit (PMCxUNIT) - * MMCR1[x] = combine (PMCxCOMB) - * - * if pmc == 3 and unit == 0 and pmcxsel[0:6] == 0b0101011 - * # PM_MRK_FAB_RSP_MATCH - * MMCR1[20:27] = thresh_ctl (FAB_CRESP_MATCH / FAB_TYPE_MATCH) - * else if pmc == 4 and unit == 0xf and pmcxsel[0:6] == 0b0101001 - * # PM_MRK_FAB_RSP_MATCH_CYC - * MMCR1[20:27] = thresh_ctl (FAB_CRESP_MATCH / FAB_TYPE_MATCH) - * else - * MMCRA[48:55] = thresh_ctl (THRESH START/END) - * - * if thresh_sel: - * MMCRA[45:47] = thresh_sel - * - * if thresh_cmp: - * MMCRA[22:24] = thresh_cmp[0:2] - * MMCRA[25:31] = thresh_cmp[3:9] - * - * if unit == 6 or unit == 7 - * MMCRC[53:55] = cache_sel[1:3] (L2EVENT_SEL) - * else if unit == 8 or unit == 9: - * if cache_sel[0] == 0: # L3 bank - * MMCRC[47:49] = cache_sel[1:3] (L3EVENT_SEL0) - * else if cache_sel[0] == 1: - * MMCRC[50:51] = cache_sel[2:3] (L3EVENT_SEL1) - * else if cache_sel[1]: # L1 event - * MMCR1[16] = cache_sel[2] -Â * MMCR1[17] = cache_sel[3] - * - * if mark: - * MMCRA[63] = 1 (SAMPLE_ENABLE) - * MMCRA[57:59] = sample[0:2] (RAND_SAMP_ELIG) -Â * MMCRA[61:62] = sample[3:4] (RAND_SAMP_MODE) - * - * if EBB and BHRB: - * MMCRA[32:33] = IFM - * - */ - -#define EVENT_EBB_MASK 1ull -#define EVENT_EBB_SHIFT PERF_EVENT_CONFIG_EBB_SHIFT -#define EVENT_BHRB_MASK 1ull -#define EVENT_BHRB_SHIFT 62 -#define EVENT_WANTS_BHRB (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT) -#define EVENT_IFM_MASK 3ull -#define EVENT_IFM_SHIFT 60 -#define EVENT_THR_CMP_SHIFT 40 /* Threshold CMP value */ -#define EVENT_THR_CMP_MASK 0x3ff -#define EVENT_THR_CTL_SHIFT 32 /* Threshold control value (start/stop) */ -#define EVENT_THR_CTL_MASK 0xffull -#define EVENT_THR_SEL_SHIFT 29 /* Threshold select value */ -#define EVENT_THR_SEL_MASK 0x7 -#define EVENT_THRESH_SHIFT 29 /* All threshold bits */ -#define EVENT_THRESH_MASK 0x1fffffull -#define EVENT_SAMPLE_SHIFT 24 /* Sampling mode & eligibility */ -#define EVENT_SAMPLE_MASK 0x1f -#define EVENT_CACHE_SEL_SHIFT 20 /* L2/L3 cache select */ -#define EVENT_CACHE_SEL_MASK 0xf -#define EVENT_IS_L1 (4 << EVENT_CACHE_SEL_SHIFT) -#define EVENT_PMC_SHIFT 16 /* PMC number (1-based) */ -#define EVENT_PMC_MASK 0xf -#define EVENT_UNIT_SHIFT 12 /* Unit */ -#define EVENT_UNIT_MASK 0xf -#define EVENT_COMBINE_SHIFT 11 /* Combine bit */ -#define EVENT_COMBINE_MASK 0x1 -#define EVENT_MARKED_SHIFT 8 /* Marked bit */ -#define EVENT_MARKED_MASK 0x1 -#define EVENT_IS_MARKED (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) -#define EVENT_PSEL_MASK 0xff /* PMCxSEL value */ - -/* Bits defined by Linux */ -#define EVENT_LINUX_MASK \ - ((EVENT_EBB_MASK << EVENT_EBB_SHIFT) | \ - (EVENT_BHRB_MASK << EVENT_BHRB_SHIFT) | \ - (EVENT_IFM_MASK << EVENT_IFM_SHIFT)) - -#define EVENT_VALID_MASK \ - ((EVENT_THRESH_MASK << EVENT_THRESH_SHIFT) | \ - (EVENT_SAMPLE_MASK << EVENT_SAMPLE_SHIFT) | \ - (EVENT_CACHE_SEL_MASK << EVENT_CACHE_SEL_SHIFT) | \ - (EVENT_PMC_MASK << EVENT_PMC_SHIFT) | \ - (EVENT_UNIT_MASK << EVENT_UNIT_SHIFT) | \ - (EVENT_COMBINE_MASK << EVENT_COMBINE_SHIFT) | \ - (EVENT_MARKED_MASK << EVENT_MARKED_SHIFT) | \ - EVENT_LINUX_MASK | \ - EVENT_PSEL_MASK) - /* MMCRA IFM bits - POWER8 */ #define POWER8_MMCRA_IFM1 0x0000000040000000UL #define POWER8_MMCRA_IFM2 0x0000000080000000UL #define POWER8_MMCRA_IFM3 0x00000000C0000000UL -#define ONLY_PLM \ - (PERF_SAMPLE_BRANCH_USER |\ - PERF_SAMPLE_BRANCH_KERNEL |\ - PERF_SAMPLE_BRANCH_HV) - -/* - * Layout of constraint bits: - * - * 60 56 52 48 44 40 36 32 - * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - * [ fab_match ] [ thresh_cmp ] [ thresh_ctl ] [ ] - * | - * thresh_sel -* - * - * 28 24 20 16 12 8 4 0 - * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - * [ ] | [ ] [ sample ] [ ] [6] [5] [4] [3] [2] [1] - * | | | | - * BHRB IFM -* | | | Count of events for each PMC. - * EBB -* | | p1, p2, p3, p4, p5, p6. - * L1 I/D qualifier -* | - * nc - number of counters -* - * - * The PMC fields P1..P6, and NC, are adder fields. As we accumulate constraints - * we want the low bit of each field to be added to any existing value. - * - * Everything else is a value field. - */ - -#define CNST_FAB_MATCH_VAL(v) (((v) & EVENT_THR_CTL_MASK) << 56) -#define CNST_FAB_MATCH_MASK CNST_FAB_MATCH_VAL(EVENT_THR_CTL_MASK) - -/* We just throw all the threshold bits into the constraint */ -#define CNST_THRESH_VAL(v) (((v) & EVENT_THRESH_MASK) << 32) -#define CNST_THRESH_MASK CNST_THRESH_VAL(EVENT_THRESH_MASK) - -#define CNST_EBB_VAL(v) (((v) & EVENT_EBB_MASK) << 24) -#define CNST_EBB_MASK CNST_EBB_VAL(EVENT_EBB_MASK) - -#define CNST_IFM_VAL(v) (((v) & EVENT_IFM_MASK) << 25) -#define CNST_IFM_MASK CNST_IFM_VAL(EVENT_IFM_MASK) - -#define CNST_L1_QUAL_VAL(v) (((v) & 3) << 22) -#define CNST_L1_QUAL_MASK CNST_L1_QUAL_VAL(3) - -#define CNST_SAMPLE_VAL(v) (((v) & EVENT_SAMPLE_MASK) << 16) -#define CNST_SAMPLE_MASK CNST_SAMPLE_VAL(EVENT_SAMPLE_MASK) - -/* - * For NC we are counting up to 4 events. This requires three bits, and we need - * the fifth event to overflow and set the 4th bit. To achieve that we bias the - * fields by 3 in test_adder. - */ -#define CNST_NC_SHIFT 12 -#define CNST_NC_VAL (1 << CNST_NC_SHIFT) -#define CNST_NC_MASK (8 << CNST_NC_SHIFT) -#define POWER8_TEST_ADDER (3 << CNST_NC_SHIFT) - -/* - * For the per-PMC fields we have two bits. The low bit is added, so if two - * events ask for the same PMC the sum will overflow, setting the high bit, - * indicating an error. So our mask sets the high bit. - */ -#define CNST_PMC_SHIFT(pmc) ((pmc - 1) * 2) -#define CNST_PMC_VAL(pmc) (1 << CNST_PMC_SHIFT(pmc)) -#define CNST_PMC_MASK(pmc) (2 << CNST_PMC_SHIFT(pmc)) - -/* Our add_fields is defined as: */ -#define POWER8_ADD_FIELDS \ - CNST_PMC_VAL(1) | CNST_PMC_VAL(2) | CNST_PMC_VAL(3) | \ - CNST_PMC_VAL(4) | CNST_PMC_VAL(5) | CNST_PMC_VAL(6) | CNST_NC_VAL - - -/* Bits in MMCR1 for POWER8 */ -#define MMCR1_UNIT_SHIFT(pmc) (60 - (4 * ((pmc) - 1))) -#define MMCR1_COMBINE_SHIFT(pmc) (35 - ((pmc) - 1)) -#define MMCR1_PMCSEL_SHIFT(pmc) (24 - (((pmc) - 1)) * 8) -#define MMCR1_FAB_SHIFT 36 -#define MMCR1_DC_QUAL_SHIFT 47 -#define MMCR1_IC_QUAL_SHIFT 46 - -/* Bits in MMCRA for POWER8 */ -#define MMCRA_SAMP_MODE_SHIFT 1 -#define MMCRA_SAMP_ELIG_SHIFT 4 -#define MMCRA_THR_CTL_SHIFT 8 -#define MMCRA_THR_SEL_SHIFT 16 -#define MMCRA_THR_CMP_SHIFT 32 -#define MMCRA_SDAR_MODE_TLB (1ull << 42) -#define MMCRA_IFM_SHIFT 30 - -/* Bits in MMCR2 for POWER8 */ -#define MMCR2_FCS(pmc) (1ull << (63 - (((pmc) - 1) * 9))) -#define MMCR2_FCP(pmc) (1ull << (62 - (((pmc) - 1) * 9))) -#define MMCR2_FCH(pmc) (1ull << (57 - (((pmc) - 1) * 9))) - - -static inline bool event_is_fab_match(u64 event) -{ - /* Only check pmc, unit and pmcxsel, ignore the edge bit (0) */ - event &= 0xff0fe; - - /* PM_MRK_FAB_RSP_MATCH & PM_MRK_FAB_RSP_MATCH_CYC */ - return (event == 0x30056 || event == 0x4f052); -} - -static int power8_get_constraint(u64 event, unsigned long *maskp, unsigned long *valp) -{ - unsigned int unit, pmc, cache, ebb; - unsigned long mask, value; - - mask = value = 0; - - if (event & ~EVENT_VALID_MASK) - return -1; - - pmc = (event >> EVENT_PMC_SHIFT) & EVENT_PMC_MASK; - unit = (event >> EVENT_UNIT_SHIFT) & EVENT_UNIT_MASK; - cache = (event >> EVENT_CACHE_SEL_SHIFT) & EVENT_CACHE_SEL_MASK; - ebb = (event >> EVENT_EBB_SHIFT) & EVENT_EBB_MASK; - - if (pmc) { - u64 base_event; - - if (pmc > 6) - return -1; - - /* Ignore Linux defined bits when checking event below */ - base_event = event & ~EVENT_LINUX_MASK; - - if (pmc >= 5 && base_event != PM_RUN_INST_CMPL && - base_event != PM_RUN_CYC) - return -1; - - mask |= CNST_PMC_MASK(pmc); - value |= CNST_PMC_VAL(pmc); - } - - if (pmc <= 4) { - /* - * Add to number of counters in use. Note this includes events with - * a PMC of 0 - they still need a PMC, it's just assigned later. - * Don't count events on PMC 5 & 6, there is only one valid event - * on each of those counters, and they are handled above. - */ - mask |= CNST_NC_MASK; - value |= CNST_NC_VAL; - } - - if (unit >= 6 && unit <= 9) { - /* - * L2/L3 events contain a cache selector field, which is - * supposed to be programmed into MMCRC. However MMCRC is only - * HV writable, and there is no API for guest kernels to modify - * it. The solution is for the hypervisor to initialise the - * field to zeroes, and for us to only ever allow events that - * have a cache selector of zero. The bank selector (bit 3) is - * irrelevant, as long as the rest of the value is 0. - */ - if (cache & 0x7) - return -1; - - } else if (event & EVENT_IS_L1) { - mask |= CNST_L1_QUAL_MASK; - value |= CNST_L1_QUAL_VAL(cache); - } - - if (event & EVENT_IS_MARKED) { - mask |= CNST_SAMPLE_MASK; - value |= CNST_SAMPLE_VAL(event >> EVENT_SAMPLE_SHIFT); - } - - /* - * Special case for PM_MRK_FAB_RSP_MATCH and PM_MRK_FAB_RSP_MATCH_CYC, - * the threshold control bits are used for the match value. - */ - if (event_is_fab_match(event)) { - mask |= CNST_FAB_MATCH_MASK; - value |= CNST_FAB_MATCH_VAL(event >> EVENT_THR_CTL_SHIFT); - } else { - /* - * Check the mantissa upper two bits are not zero, unless the - * exponent is also zero. See the THRESH_CMP_MANTISSA doc. - */ - unsigned int cmp, exp; - - cmp = (event >> EVENT_THR_CMP_SHIFT) & EVENT_THR_CMP_MASK; - exp = cmp >> 7; - - if (exp && (cmp & 0x60) == 0) - return -1; - - mask |= CNST_THRESH_MASK; - value |= CNST_THRESH_VAL(event >> EVENT_THRESH_SHIFT); - } - - if (!pmc && ebb) - /* EBB events must specify the PMC */ - return -1; - - if (event & EVENT_WANTS_BHRB) { - if (!ebb) - /* Only EBB events can request BHRB */ - return -1; - - mask |= CNST_IFM_MASK; - value |= CNST_IFM_VAL(event >> EVENT_IFM_SHIFT); - } - - /* - * All events must agree on EBB, either all request it or none. - * EBB events are pinned & exclusive, so this should never actually - * hit, but we leave it as a fallback in case. - */ - mask |= CNST_EBB_VAL(ebb); - value |= CNST_EBB_MASK; - - *maskp = mask; - *valp = value; - - return 0; -} - -static int power8_compute_mmcr(u64 event[], int n_ev, - unsigned int hwc[], unsigned long mmcr[], - struct perf_event *pevents[]) -{ - unsigned long mmcra, mmcr1, mmcr2, unit, combine, psel, cache, val; - unsigned int pmc, pmc_inuse; - int i; - - pmc_inuse = 0; - - /* First pass to count resource use */ - for (i = 0; i < n_ev; ++i) { - pmc = (event[i] >> EVENT_PMC_SHIFT) & EVENT_PMC_MASK; - if (pmc) - pmc_inuse |= 1 << pmc; - } - - /* In continuous sampling mode, update SDAR on TLB miss */ - mmcra = MMCRA_SDAR_MODE_TLB; - mmcr1 = mmcr2 = 0; - - /* Second pass: assign PMCs, set all MMCR1 fields */ - for (i = 0; i < n_ev; ++i) { - pmc = (event[i] >> EVENT_PMC_SHIFT) & EVENT_PMC_MASK; - unit = (event[i] >> EVENT_UNIT_SHIFT) & EVENT_UNIT_MASK; - combine = (event[i] >> EVENT_COMBINE_SHIFT) & EVENT_COMBINE_MASK; - psel = event[i] & EVENT_PSEL_MASK; - - if (!pmc) { - for (pmc = 1; pmc <= 4; ++pmc) { - if (!(pmc_inuse & (1 << pmc))) - break; - } - - pmc_inuse |= 1 << pmc; - } - - if (pmc <= 4) { - mmcr1 |= unit << MMCR1_UNIT_SHIFT(pmc); - mmcr1 |= combine << MMCR1_COMBINE_SHIFT(pmc); - mmcr1 |= psel << MMCR1_PMCSEL_SHIFT(pmc); - } - - if (event[i] & EVENT_IS_L1) { - cache = event[i] >> EVENT_CACHE_SEL_SHIFT; - mmcr1 |= (cache & 1) << MMCR1_IC_QUAL_SHIFT; - cache >>= 1; - mmcr1 |= (cache & 1) << MMCR1_DC_QUAL_SHIFT; - } - - if (event[i] & EVENT_IS_MARKED) { - mmcra |= MMCRA_SAMPLE_ENABLE; - - val = (event[i] >> EVENT_SAMPLE_SHIFT) & EVENT_SAMPLE_MASK; - if (val) { - mmcra |= (val & 3) << MMCRA_SAMP_MODE_SHIFT; - mmcra |= (val >> 2) << MMCRA_SAMP_ELIG_SHIFT; - } - } - - /* - * PM_MRK_FAB_RSP_MATCH and PM_MRK_FAB_RSP_MATCH_CYC, - * the threshold bits are used for the match value. - */ - if (event_is_fab_match(event[i])) { - mmcr1 |= ((event[i] >> EVENT_THR_CTL_SHIFT) & - EVENT_THR_CTL_MASK) << MMCR1_FAB_SHIFT; - } else { - val = (event[i] >> EVENT_THR_CTL_SHIFT) & EVENT_THR_CTL_MASK; - mmcra |= val << MMCRA_THR_CTL_SHIFT; - val = (event[i] >> EVENT_THR_SEL_SHIFT) & EVENT_THR_SEL_MASK; - mmcra |= val << MMCRA_THR_SEL_SHIFT; - val = (event[i] >> EVENT_THR_CMP_SHIFT) & EVENT_THR_CMP_MASK; - mmcra |= val << MMCRA_THR_CMP_SHIFT; - } - - if (event[i] & EVENT_WANTS_BHRB) { - val = (event[i] >> EVENT_IFM_SHIFT) & EVENT_IFM_MASK; - mmcra |= val << MMCRA_IFM_SHIFT; - } - - if (pevents[i]->attr.exclude_user) - mmcr2 |= MMCR2_FCP(pmc); - - if (pevents[i]->attr.exclude_hv) - mmcr2 |= MMCR2_FCH(pmc); - - if (pevents[i]->attr.exclude_kernel) { - if (cpu_has_feature(CPU_FTR_HVMODE)) - mmcr2 |= MMCR2_FCH(pmc); - else - mmcr2 |= MMCR2_FCS(pmc); - } - - hwc[i] = pmc - 1; - } - - /* Return MMCRx values */ - mmcr[0] = 0; - - /* pmc_inuse is 1-based */ - if (pmc_inuse & 2) - mmcr[0] = MMCR0_PMC1CE; - - if (pmc_inuse & 0x7c) - mmcr[0] |= MMCR0_PMCjCE; - - /* If we're not using PMC 5 or 6, freeze them */ - if (!(pmc_inuse & 0x60)) - mmcr[0] |= MMCR0_FC56; - - mmcr[1] = mmcr1; - mmcr[2] = mmcra; - mmcr[3] = mmcr2; - - return 0; -} - -#define MAX_ALT 2 - /* Table of alternatives, sorted by column 0 */ static const unsigned int event_alternatives[][MAX_ALT] = { { PM_MRK_ST_CMPL, PM_MRK_ST_CMPL_ALT }, @@ -567,12 +110,6 @@ static int power8_get_alternatives(u64 event, unsigned int flags, u64 alt[]) return num_alt; } -static void power8_disable_pmc(unsigned int pmc, unsigned long mmcr[]) -{ - if (pmc <= 3) - mmcr[1] &= ~(0xffUL << MMCR1_PMCSEL_SHIFT(pmc + 1)); -} - GENERIC_EVENT_ATTR(cpu-cycles, PM_CYC); GENERIC_EVENT_ATTR(stalled-cycles-frontend, PM_GCT_NOSLOT_CYC); GENERIC_EVENT_ATTR(stalled-cycles-backend, PM_CMPLU_STALL); @@ -841,16 +378,16 @@ static int power8_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { static struct power_pmu power8_pmu = { .name = "POWER8", - .n_counter = 6, + .n_counter = MAX_PMU_COUNTERS, .max_alternatives = MAX_ALT + 1, - .add_fields = POWER8_ADD_FIELDS, - .test_adder = POWER8_TEST_ADDER, - .compute_mmcr = power8_compute_mmcr, + .add_fields = ISA207_ADD_FIELDS, + .test_adder = ISA207_TEST_ADDER, + .compute_mmcr = isa207_compute_mmcr, .config_bhrb = power8_config_bhrb, .bhrb_filter_map = power8_bhrb_filter_map, - .get_constraint = power8_get_constraint, + .get_constraint = isa207_get_constraint, .get_alternatives = power8_get_alternatives, - .disable_pmc = power8_disable_pmc, + .disable_pmc = isa207_disable_pmc, .flags = PPMU_HAS_SIER | PPMU_ARCH_207S, .n_generic = ARRAY_SIZE(power8_generic_events), .generic_events = power8_generic_events, diff --git a/arch/powerpc/perf/power9-events-list.h b/arch/powerpc/perf/power9-events-list.h new file mode 100644 index 000000000000..cda6fcb809ca --- /dev/null +++ b/arch/powerpc/perf/power9-events-list.h @@ -0,0 +1,55 @@ +/* + * Performance counter support for POWER9 processors. + * + * Copyright 2016 Madhavan Srinivasan, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +/* + * Power9 event codes. + */ +EVENT(PM_CYC, 0x0001e) +EVENT(PM_ICT_NOSLOT_CYC, 0x100f8) +EVENT(PM_CMPLU_STALL, 0x1e054) +EVENT(PM_INST_CMPL, 0x00002) +EVENT(PM_BRU_CMPL, 0x40060) +EVENT(PM_BR_MPRED_CMPL, 0x400f6) + +/* All L1 D cache load references counted at finish, gated by reject */ +EVENT(PM_LD_REF_L1, 0x100fc) +/* Load Missed L1 */ +EVENT(PM_LD_MISS_L1_FIN, 0x2c04e) +/* Store Missed L1 */ +EVENT(PM_ST_MISS_L1, 0x300f0) +/* L1 cache data prefetches */ +EVENT(PM_L1_PREF, 0x20054) +/* Instruction fetches from L1 */ +EVENT(PM_INST_FROM_L1, 0x04080) +/* Demand iCache Miss */ +EVENT(PM_L1_ICACHE_MISS, 0x200fd) +/* Instruction Demand sectors wriittent into IL1 */ +EVENT(PM_L1_DEMAND_WRITE, 0x0408c) +/* Instruction prefetch written into IL1 */ +EVENT(PM_IC_PREF_WRITE, 0x0408e) +/* The data cache was reloaded from local core's L3 due to a demand load */ +EVENT(PM_DATA_FROM_L3, 0x4c042) +/* Demand LD - L3 Miss (not L2 hit and not L3 hit) */ +EVENT(PM_DATA_FROM_L3MISS, 0x300fe) +/* All successful D-side store dispatches for this thread */ +EVENT(PM_L2_ST, 0x16081) +/* All successful D-side store dispatches for this thread that were L2 Miss */ +EVENT(PM_L2_ST_MISS, 0x26081) +/* Total HW L3 prefetches(Load+store) */ +EVENT(PM_L3_PREF_ALL, 0x4e052) +/* Data PTEG reload */ +EVENT(PM_DTLB_MISS, 0x300fc) +/* ITLB Reloaded */ +EVENT(PM_ITLB_MISS, 0x400fc) +/* Run_Instructions */ +EVENT(PM_RUN_INST_CMPL, 0x500fa) +/* Run_cycles */ +EVENT(PM_RUN_CYC, 0x600f4) diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c new file mode 100644 index 000000000000..788346303852 --- /dev/null +++ b/arch/powerpc/perf/power9-pmu.c @@ -0,0 +1,330 @@ +/* + * Performance counter support for POWER9 processors. + * + * Copyright 2009 Paul Mackerras, IBM Corporation. + * Copyright 2013 Michael Ellerman, IBM Corporation. + * Copyright 2016 Madhavan Srinivasan, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or later version. + */ + +#define pr_fmt(fmt) "power9-pmu: " fmt + +#include "isa207-common.h" + +/* + * Some power9 event codes. + */ +#define EVENT(_name, _code) _name = _code, + +enum { +#include "power9-events-list.h" +}; + +#undef EVENT + +/* MMCRA IFM bits - POWER9 */ +#define POWER9_MMCRA_IFM1 0x0000000040000000UL +#define POWER9_MMCRA_IFM2 0x0000000080000000UL +#define POWER9_MMCRA_IFM3 0x00000000C0000000UL + +GENERIC_EVENT_ATTR(cpu-cycles, PM_CYC); +GENERIC_EVENT_ATTR(stalled-cycles-frontend, PM_ICT_NOSLOT_CYC); +GENERIC_EVENT_ATTR(stalled-cycles-backend, PM_CMPLU_STALL); +GENERIC_EVENT_ATTR(instructions, PM_INST_CMPL); +GENERIC_EVENT_ATTR(branch-instructions, PM_BRU_CMPL); +GENERIC_EVENT_ATTR(branch-misses, PM_BR_MPRED_CMPL); +GENERIC_EVENT_ATTR(cache-references, PM_LD_REF_L1); +GENERIC_EVENT_ATTR(cache-misses, PM_LD_MISS_L1_FIN); + +CACHE_EVENT_ATTR(L1-dcache-load-misses, PM_LD_MISS_L1_FIN); +CACHE_EVENT_ATTR(L1-dcache-loads, PM_LD_REF_L1); +CACHE_EVENT_ATTR(L1-dcache-prefetches, PM_L1_PREF); +CACHE_EVENT_ATTR(L1-dcache-store-misses, PM_ST_MISS_L1); +CACHE_EVENT_ATTR(L1-icache-load-misses, PM_L1_ICACHE_MISS); +CACHE_EVENT_ATTR(L1-icache-loads, PM_INST_FROM_L1); +CACHE_EVENT_ATTR(L1-icache-prefetches, PM_IC_PREF_WRITE); +CACHE_EVENT_ATTR(LLC-load-misses, PM_DATA_FROM_L3MISS); +CACHE_EVENT_ATTR(LLC-loads, PM_DATA_FROM_L3); +CACHE_EVENT_ATTR(LLC-prefetches, PM_L3_PREF_ALL); +CACHE_EVENT_ATTR(LLC-store-misses, PM_L2_ST_MISS); +CACHE_EVENT_ATTR(LLC-stores, PM_L2_ST); +CACHE_EVENT_ATTR(branch-load-misses, PM_BR_MPRED_CMPL); +CACHE_EVENT_ATTR(branch-loads, PM_BRU_CMPL); +CACHE_EVENT_ATTR(dTLB-load-misses, PM_DTLB_MISS); +CACHE_EVENT_ATTR(iTLB-load-misses, PM_ITLB_MISS); + +static struct attribute *power9_events_attr[] = { + GENERIC_EVENT_PTR(PM_CYC), + GENERIC_EVENT_PTR(PM_ICT_NOSLOT_CYC), + GENERIC_EVENT_PTR(PM_CMPLU_STALL), + GENERIC_EVENT_PTR(PM_INST_CMPL), + GENERIC_EVENT_PTR(PM_BRU_CMPL), + GENERIC_EVENT_PTR(PM_BR_MPRED_CMPL), + GENERIC_EVENT_PTR(PM_LD_REF_L1), + GENERIC_EVENT_PTR(PM_LD_MISS_L1_FIN), + CACHE_EVENT_PTR(PM_LD_MISS_L1_FIN), + CACHE_EVENT_PTR(PM_LD_REF_L1), + CACHE_EVENT_PTR(PM_L1_PREF), + CACHE_EVENT_PTR(PM_ST_MISS_L1), + CACHE_EVENT_PTR(PM_L1_ICACHE_MISS), + CACHE_EVENT_PTR(PM_INST_FROM_L1), + CACHE_EVENT_PTR(PM_IC_PREF_WRITE), + CACHE_EVENT_PTR(PM_DATA_FROM_L3MISS), + CACHE_EVENT_PTR(PM_DATA_FROM_L3), + CACHE_EVENT_PTR(PM_L3_PREF_ALL), + CACHE_EVENT_PTR(PM_L2_ST_MISS), + CACHE_EVENT_PTR(PM_L2_ST), + CACHE_EVENT_PTR(PM_BR_MPRED_CMPL), + CACHE_EVENT_PTR(PM_BRU_CMPL), + CACHE_EVENT_PTR(PM_DTLB_MISS), + CACHE_EVENT_PTR(PM_ITLB_MISS), + NULL +}; + +static struct attribute_group power9_pmu_events_group = { + .name = "events", + .attrs = power9_events_attr, +}; + +PMU_FORMAT_ATTR(event, "config:0-49"); +PMU_FORMAT_ATTR(pmcxsel, "config:0-7"); +PMU_FORMAT_ATTR(mark, "config:8"); +PMU_FORMAT_ATTR(combine, "config:11"); +PMU_FORMAT_ATTR(unit, "config:12-15"); +PMU_FORMAT_ATTR(pmc, "config:16-19"); +PMU_FORMAT_ATTR(cache_sel, "config:20-23"); +PMU_FORMAT_ATTR(sample_mode, "config:24-28"); +PMU_FORMAT_ATTR(thresh_sel, "config:29-31"); +PMU_FORMAT_ATTR(thresh_stop, "config:32-35"); +PMU_FORMAT_ATTR(thresh_start, "config:36-39"); +PMU_FORMAT_ATTR(thresh_cmp, "config:40-49"); + +static struct attribute *power9_pmu_format_attr[] = { + &format_attr_event.attr, + &format_attr_pmcxsel.attr, + &format_attr_mark.attr, + &format_attr_combine.attr, + &format_attr_unit.attr, + &format_attr_pmc.attr, + &format_attr_cache_sel.attr, + &format_attr_sample_mode.attr, + &format_attr_thresh_sel.attr, + &format_attr_thresh_stop.attr, + &format_attr_thresh_start.attr, + &format_attr_thresh_cmp.attr, + NULL, +}; + +struct attribute_group power9_pmu_format_group = { + .name = "format", + .attrs = power9_pmu_format_attr, +}; + +static const struct attribute_group *power9_pmu_attr_groups[] = { + &power9_pmu_format_group, + &power9_pmu_events_group, + NULL, +}; + +static int power9_generic_events[] = { + [PERF_COUNT_HW_CPU_CYCLES] = PM_CYC, + [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = PM_ICT_NOSLOT_CYC, + [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = PM_CMPLU_STALL, + [PERF_COUNT_HW_INSTRUCTIONS] = PM_INST_CMPL, + [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BRU_CMPL, + [PERF_COUNT_HW_BRANCH_MISSES] = PM_BR_MPRED_CMPL, + [PERF_COUNT_HW_CACHE_REFERENCES] = PM_LD_REF_L1, + [PERF_COUNT_HW_CACHE_MISSES] = PM_LD_MISS_L1_FIN, +}; + +static u64 power9_bhrb_filter_map(u64 branch_sample_type) +{ + u64 pmu_bhrb_filter = 0; + + /* BHRB and regular PMU events share the same privilege state + * filter configuration. BHRB is always recorded along with a + * regular PMU event. As the privilege state filter is handled + * in the basic PMC configuration of the accompanying regular + * PMU event, we ignore any separate BHRB specific request. + */ + + /* No branch filter requested */ + if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY) + return pmu_bhrb_filter; + + /* Invalid branch filter options - HW does not support */ + if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY_RETURN) + return -1; + + if (branch_sample_type & PERF_SAMPLE_BRANCH_IND_CALL) + return -1; + + if (branch_sample_type & PERF_SAMPLE_BRANCH_CALL) + return -1; + + if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY_CALL) { + pmu_bhrb_filter |= POWER9_MMCRA_IFM1; + return pmu_bhrb_filter; + } + + /* Every thing else is unsupported */ + return -1; +} + +static void power9_config_bhrb(u64 pmu_bhrb_filter) +{ + /* Enable BHRB filter in PMU */ + mtspr(SPRN_MMCRA, (mfspr(SPRN_MMCRA) | pmu_bhrb_filter)); +} + +#define C(x) PERF_COUNT_HW_CACHE_##x + +/* + * Table of generalized cache-related events. + * 0 means not supported, -1 means nonsensical, other values + * are event codes. + */ +static int power9_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { + [ C(L1D) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = PM_LD_REF_L1, + [ C(RESULT_MISS) ] = PM_LD_MISS_L1_FIN, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = PM_ST_MISS_L1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = PM_L1_PREF, + [ C(RESULT_MISS) ] = 0, + }, + }, + [ C(L1I) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = PM_INST_FROM_L1, + [ C(RESULT_MISS) ] = PM_L1_ICACHE_MISS, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = PM_L1_DEMAND_WRITE, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = PM_IC_PREF_WRITE, + [ C(RESULT_MISS) ] = 0, + }, + }, + [ C(LL) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = PM_DATA_FROM_L3, + [ C(RESULT_MISS) ] = PM_DATA_FROM_L3MISS, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = PM_L2_ST, + [ C(RESULT_MISS) ] = PM_L2_ST_MISS, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = PM_L3_PREF_ALL, + [ C(RESULT_MISS) ] = 0, + }, + }, + [ C(DTLB) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = PM_DTLB_MISS, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + }, + [ C(ITLB) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = 0, + [ C(RESULT_MISS) ] = PM_ITLB_MISS, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + }, + [ C(BPU) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = PM_BRU_CMPL, + [ C(RESULT_MISS) ] = PM_BR_MPRED_CMPL, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + }, + [ C(NODE) ] = { + [ C(OP_READ) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_WRITE) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + [ C(OP_PREFETCH) ] = { + [ C(RESULT_ACCESS) ] = -1, + [ C(RESULT_MISS) ] = -1, + }, + }, +}; + +#undef C + +static struct power_pmu power9_pmu = { + .name = "POWER9", + .n_counter = MAX_PMU_COUNTERS, + .add_fields = ISA207_ADD_FIELDS, + .test_adder = ISA207_TEST_ADDER, + .compute_mmcr = isa207_compute_mmcr, + .config_bhrb = power9_config_bhrb, + .bhrb_filter_map = power9_bhrb_filter_map, + .get_constraint = isa207_get_constraint, + .disable_pmc = isa207_disable_pmc, + .flags = PPMU_HAS_SIER | PPMU_ARCH_207S, + .n_generic = ARRAY_SIZE(power9_generic_events), + .generic_events = power9_generic_events, + .cache_events = &power9_cache_events, + .attr_groups = power9_pmu_attr_groups, + .bhrb_nr = 32, +}; + +static int __init init_power9_pmu(void) +{ + int rc; + + /* Comes from cpu_specs[] */ + if (!cur_cpu_spec->oprofile_cpu_type || + strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power9")) + return -ENODEV; + + rc = register_power_pmu(&power9_pmu); + if (rc) + return rc; + + /* Tell userspace that EBB is supported */ + cur_cpu_spec->cpu_user_features2 |= PPC_FEATURE2_EBB; + + return 0; +} +early_initcall(init_power9_pmu); diff --git a/arch/powerpc/platforms/40x/ep405.c b/arch/powerpc/platforms/40x/ep405.c index ddc12a1926ef..1c8aec6e9bb7 100644 --- a/arch/powerpc/platforms/40x/ep405.c +++ b/arch/powerpc/platforms/40x/ep405.c @@ -105,9 +105,7 @@ static void __init ep405_setup_arch(void) static int __init ep405_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "ep405")) + if (!of_machine_is_compatible("ep405")) return 0; return 1; diff --git a/arch/powerpc/platforms/40x/ppc40x_simple.c b/arch/powerpc/platforms/40x/ppc40x_simple.c index b0c46375dd95..2a050007bbae 100644 --- a/arch/powerpc/platforms/40x/ppc40x_simple.c +++ b/arch/powerpc/platforms/40x/ppc40x_simple.c @@ -63,7 +63,7 @@ static const char * const board[] __initconst = { static int __init ppc40x_probe(void) { - if (of_flat_dt_match(of_get_flat_dt_root(), board)) { + if (of_device_compatible_match(of_root, board)) { pci_set_flags(PCI_REASSIGN_ALL_RSRC); return 1; } diff --git a/arch/powerpc/platforms/40x/virtex.c b/arch/powerpc/platforms/40x/virtex.c index 9aa7ae2f4164..91a08ea758a8 100644 --- a/arch/powerpc/platforms/40x/virtex.c +++ b/arch/powerpc/platforms/40x/virtex.c @@ -37,9 +37,7 @@ machine_device_initcall(virtex, virtex_device_probe); static int __init virtex_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "xlnx,virtex")) + if (!of_machine_is_compatible("xlnx,virtex")) return 0; return 1; diff --git a/arch/powerpc/platforms/40x/walnut.c b/arch/powerpc/platforms/40x/walnut.c index f7ac2d0fcb44..e5797815e2f1 100644 --- a/arch/powerpc/platforms/40x/walnut.c +++ b/arch/powerpc/platforms/40x/walnut.c @@ -46,9 +46,7 @@ machine_device_initcall(walnut, walnut_device_probe); static int __init walnut_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "ibm,walnut")) + if (!of_machine_is_compatible("ibm,walnut")) return 0; pci_set_flags(PCI_REASSIGN_ALL_RSRC); diff --git a/arch/powerpc/platforms/44x/canyonlands.c b/arch/powerpc/platforms/44x/canyonlands.c index 22ca5430c9cb..157f4ce46386 100644 --- a/arch/powerpc/platforms/44x/canyonlands.c +++ b/arch/powerpc/platforms/44x/canyonlands.c @@ -53,11 +53,10 @@ machine_device_initcall(canyonlands, ppc460ex_device_probe); static int __init ppc460ex_probe(void) { - unsigned long root = of_get_flat_dt_root(); - if (of_flat_dt_is_compatible(root, "amcc,canyonlands")) { + if (of_machine_is_compatible("amcc,canyonlands")) { pci_set_flags(PCI_REASSIGN_ALL_RSRC); return 1; - } + } return 0; } diff --git a/arch/powerpc/platforms/44x/ebony.c b/arch/powerpc/platforms/44x/ebony.c index ae893226392d..1070225f5f9b 100644 --- a/arch/powerpc/platforms/44x/ebony.c +++ b/arch/powerpc/platforms/44x/ebony.c @@ -49,9 +49,7 @@ machine_device_initcall(ebony, ebony_device_probe); */ static int __init ebony_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "ibm,ebony")) + if (!of_machine_is_compatible("ibm,ebony")) return 0; pci_set_flags(PCI_REASSIGN_ALL_RSRC); diff --git a/arch/powerpc/platforms/44x/iss4xx.c b/arch/powerpc/platforms/44x/iss4xx.c index c7c6758b3cfe..5f296dd6b1c0 100644 --- a/arch/powerpc/platforms/44x/iss4xx.c +++ b/arch/powerpc/platforms/44x/iss4xx.c @@ -149,9 +149,7 @@ static void __init iss4xx_setup_arch(void) */ static int __init iss4xx_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "ibm,iss-4xx")) + if (!of_machine_is_compatible("ibm,iss-4xx")) return 0; return 1; diff --git a/arch/powerpc/platforms/44x/ppc44x_simple.c b/arch/powerpc/platforms/44x/ppc44x_simple.c index 573c3d2689c6..8d6e4da9dfbe 100644 --- a/arch/powerpc/platforms/44x/ppc44x_simple.c +++ b/arch/powerpc/platforms/44x/ppc44x_simple.c @@ -67,11 +67,10 @@ static char *board[] __initdata = { static int __init ppc44x_probe(void) { - unsigned long root = of_get_flat_dt_root(); int i = 0; for (i = 0; i < ARRAY_SIZE(board); i++) { - if (of_flat_dt_is_compatible(root, board[i])) { + if (of_machine_is_compatible(board[i])) { pci_set_flags(PCI_REASSIGN_ALL_RSRC); return 1; } diff --git a/arch/powerpc/platforms/44x/ppc476.c b/arch/powerpc/platforms/44x/ppc476.c index c11ce6516c8f..e55933f9cd55 100644 --- a/arch/powerpc/platforms/44x/ppc476.c +++ b/arch/powerpc/platforms/44x/ppc476.c @@ -68,7 +68,7 @@ DECLARE_PCI_FIXUP_HEADER(0x1033, 0x0035, quirk_ppc_currituck_usb_fixup); #define AVR_PWRCTL_RESET (0x02) static struct i2c_client *avr_i2c_client; -static void avr_halt_system(int pwrctl_flags) +static void __noreturn avr_halt_system(int pwrctl_flags) { /* Request the AVR to reset the system */ i2c_smbus_write_byte_data(avr_i2c_client, @@ -84,7 +84,7 @@ static void avr_power_off_system(void) avr_halt_system(AVR_PWRCTL_PWROFF); } -static void avr_reset_system(char *cmd) +static void __noreturn avr_reset_system(char *cmd) { avr_halt_system(AVR_PWRCTL_RESET); } @@ -275,12 +275,10 @@ static void ppc47x_pci_irq_fixup(struct pci_dev *dev) */ static int __init ppc47x_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "ibm,akebono")) + if (of_machine_is_compatible("ibm,akebono")) return 1; - if (of_flat_dt_is_compatible(root, "ibm,currituck")) { + if (of_machine_is_compatible("ibm,currituck")) { ppc_md.pci_irq_fixup = ppc47x_pci_irq_fixup; return 1; } diff --git a/arch/powerpc/platforms/44x/sam440ep.c b/arch/powerpc/platforms/44x/sam440ep.c index 3ee4a03c1496..688ffeab0699 100644 --- a/arch/powerpc/platforms/44x/sam440ep.c +++ b/arch/powerpc/platforms/44x/sam440ep.c @@ -46,9 +46,7 @@ machine_device_initcall(sam440ep, sam440ep_device_probe); static int __init sam440ep_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "acube,sam440ep")) + if (!of_machine_is_compatible("acube,sam440ep")) return 0; pci_set_flags(PCI_REASSIGN_ALL_RSRC); diff --git a/arch/powerpc/platforms/44x/virtex.c b/arch/powerpc/platforms/44x/virtex.c index ad272c17c640..a7e08026097a 100644 --- a/arch/powerpc/platforms/44x/virtex.c +++ b/arch/powerpc/platforms/44x/virtex.c @@ -43,9 +43,7 @@ machine_device_initcall(virtex, virtex_device_probe); static int __init virtex_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "xlnx,virtex440")) + if (!of_machine_is_compatible("xlnx,virtex440")) return 0; return 1; diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c index 501333cf42cf..5ecce543103e 100644 --- a/arch/powerpc/platforms/44x/warp.c +++ b/arch/powerpc/platforms/44x/warp.c @@ -44,9 +44,7 @@ machine_device_initcall(warp, warp_device_probe); static int __init warp_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "pika,warp")) + if (!of_machine_is_compatible("pika,warp")) return 0; /* For __dma_alloc_coherent */ diff --git a/arch/powerpc/platforms/512x/clock-commonclk.c b/arch/powerpc/platforms/512x/clock-commonclk.c index 6081fbd75330..add5a5374fa0 100644 --- a/arch/powerpc/platforms/512x/clock-commonclk.c +++ b/arch/powerpc/platforms/512x/clock-commonclk.c @@ -719,7 +719,7 @@ static void mpc512x_clk_setup_clock_tree(struct device_node *np, int busfreq) * most one of a mux, div, and gate each into one 'struct clk' * item * - PSC/MSCAN/SPDIF clock generation OTOH already is very - * specific and cannot get mapped to componsites (at least not + * specific and cannot get mapped to composites (at least not * a single one, maybe two of them, but then some of these * intermediate clock signals get referenced elsewhere (e.g. * in the clock frequency measurement, CFM) and thus need diff --git a/arch/powerpc/platforms/512x/mpc5121_ads.c b/arch/powerpc/platforms/512x/mpc5121_ads.c index 3e90ece10ae9..f65d5033cdb0 100644 --- a/arch/powerpc/platforms/512x/mpc5121_ads.c +++ b/arch/powerpc/platforms/512x/mpc5121_ads.c @@ -57,9 +57,12 @@ static void __init mpc5121_ads_init_IRQ(void) */ static int __init mpc5121_ads_probe(void) { - unsigned long root = of_get_flat_dt_root(); + if (!of_machine_is_compatible("fsl,mpc5121ads")) + return 0; - return of_flat_dt_is_compatible(root, "fsl,mpc5121ads"); + mpc512x_init_early(); + + return 1; } define_machine(mpc5121_ads) { @@ -67,7 +70,6 @@ define_machine(mpc5121_ads) { .probe = mpc5121_ads_probe, .setup_arch = mpc5121_ads_setup_arch, .init = mpc512x_init, - .init_early = mpc512x_init_early, .init_IRQ = mpc5121_ads_init_IRQ, .get_irq = ipic_get_irq, .calibrate_decr = generic_calibrate_decr, diff --git a/arch/powerpc/platforms/512x/mpc512x.h b/arch/powerpc/platforms/512x/mpc512x.h index cc97f022d028..14ba49fd7938 100644 --- a/arch/powerpc/platforms/512x/mpc512x.h +++ b/arch/powerpc/platforms/512x/mpc512x.h @@ -18,6 +18,6 @@ extern void __init mpc512x_setup_arch(void); extern int __init mpc5121_clk_init(void); extern const char *mpc512x_select_psc_compat(void); extern const char *mpc512x_select_reset_compat(void); -extern void mpc512x_restart(char *cmd); +extern void __noreturn mpc512x_restart(char *cmd); #endif /* __MPC512X_H__ */ diff --git a/arch/powerpc/platforms/512x/mpc512x_generic.c b/arch/powerpc/platforms/512x/mpc512x_generic.c index ce71408781a0..bf884d3075e4 100644 --- a/arch/powerpc/platforms/512x/mpc512x_generic.c +++ b/arch/powerpc/platforms/512x/mpc512x_generic.c @@ -38,14 +38,18 @@ static const char * const board[] __initconst = { */ static int __init mpc512x_generic_probe(void) { - return of_flat_dt_match(of_get_flat_dt_root(), board); + if (!of_device_compatible_match(of_root, board)) + return 0; + + mpc512x_init_early(); + + return 1; } define_machine(mpc512x_generic) { .name = "MPC512x generic", .probe = mpc512x_generic_probe, .init = mpc512x_init, - .init_early = mpc512x_init_early, .setup_arch = mpc512x_setup_arch, .init_IRQ = mpc512x_init_IRQ, .get_irq = ipic_get_irq, diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c b/arch/powerpc/platforms/512x/mpc512x_shared.c index 452da2391153..6b4f4cb7009a 100644 --- a/arch/powerpc/platforms/512x/mpc512x_shared.c +++ b/arch/powerpc/platforms/512x/mpc512x_shared.c @@ -47,7 +47,7 @@ static void __init mpc512x_restart_init(void) of_node_put(np); } -void mpc512x_restart(char *cmd) +void __noreturn mpc512x_restart(char *cmd) { if (reset_module_base) { /* Enable software reset "RSTE" */ diff --git a/arch/powerpc/platforms/512x/pdm360ng.c b/arch/powerpc/platforms/512x/pdm360ng.c index 116f2325b20b..dc81f05e0bce 100644 --- a/arch/powerpc/platforms/512x/pdm360ng.c +++ b/arch/powerpc/platforms/512x/pdm360ng.c @@ -113,9 +113,12 @@ void __init pdm360ng_init(void) static int __init pdm360ng_probe(void) { - unsigned long root = of_get_flat_dt_root(); + if (!of_machine_is_compatible("ifm,pdm360ng")) + return 0; - return of_flat_dt_is_compatible(root, "ifm,pdm360ng"); + mpc512x_init_early(); + + return 1; } define_machine(pdm360ng) { @@ -123,7 +126,6 @@ define_machine(pdm360ng) { .probe = pdm360ng_probe, .setup_arch = mpc512x_setup_arch, .init = pdm360ng_init, - .init_early = mpc512x_init_early, .init_IRQ = mpc512x_init_IRQ, .get_irq = ipic_get_irq, .calibrate_decr = generic_calibrate_decr, diff --git a/arch/powerpc/platforms/52xx/efika.c b/arch/powerpc/platforms/52xx/efika.c index 6af651e69129..39b49822ace1 100644 --- a/arch/powerpc/platforms/52xx/efika.c +++ b/arch/powerpc/platforms/52xx/efika.c @@ -200,8 +200,7 @@ static void __init efika_setup_arch(void) static int __init efika_probe(void) { - const char *model = of_get_flat_dt_prop(of_get_flat_dt_root(), - "model", NULL); + const char *model = of_get_property(of_root, "model", NULL); if (model == NULL) return 0; diff --git a/arch/powerpc/platforms/52xx/lite5200.c b/arch/powerpc/platforms/52xx/lite5200.c index 7492de3cf6d0..c94c385cc919 100644 --- a/arch/powerpc/platforms/52xx/lite5200.c +++ b/arch/powerpc/platforms/52xx/lite5200.c @@ -183,7 +183,7 @@ static const char * const board[] __initconst = { */ static int __init lite5200_probe(void) { - return of_flat_dt_match(of_get_flat_dt_root(), board); + return of_device_compatible_match(of_root, board); } define_machine(lite5200) { diff --git a/arch/powerpc/platforms/52xx/media5200.c b/arch/powerpc/platforms/52xx/media5200.c index 8fb95480fd73..a3227040cc86 100644 --- a/arch/powerpc/platforms/52xx/media5200.c +++ b/arch/powerpc/platforms/52xx/media5200.c @@ -242,7 +242,7 @@ static const char * const board[] __initconst = { */ static int __init media5200_probe(void) { - return of_flat_dt_match(of_get_flat_dt_root(), board); + return of_device_compatible_match(of_root, board); } define_machine(media5200_platform) { diff --git a/arch/powerpc/platforms/52xx/mpc5200_simple.c b/arch/powerpc/platforms/52xx/mpc5200_simple.c index 792a301a0bf0..a80c6278d515 100644 --- a/arch/powerpc/platforms/52xx/mpc5200_simple.c +++ b/arch/powerpc/platforms/52xx/mpc5200_simple.c @@ -70,7 +70,7 @@ static const char *board[] __initdata = { */ static int __init mpc5200_simple_probe(void) { - return of_flat_dt_match(of_get_flat_dt_root(), board); + return of_device_compatible_match(of_root, board); } define_machine(mpc5200_simple_platform) { diff --git a/arch/powerpc/platforms/52xx/mpc52xx_common.c b/arch/powerpc/platforms/52xx/mpc52xx_common.c index 26993826a797..565e3a83dc9e 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_common.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_common.c @@ -243,8 +243,7 @@ EXPORT_SYMBOL(mpc52xx_get_xtal_freq); /** * mpc52xx_restart: ppc_md->restart hook for mpc5200 using the watchdog timer */ -void -mpc52xx_restart(char *cmd) +void __noreturn mpc52xx_restart(char *cmd) { local_irq_disable(); diff --git a/arch/powerpc/platforms/82xx/ep8248e.c b/arch/powerpc/platforms/82xx/ep8248e.c index 6781bda117be..cdab847749e6 100644 --- a/arch/powerpc/platforms/82xx/ep8248e.c +++ b/arch/powerpc/platforms/82xx/ep8248e.c @@ -309,8 +309,7 @@ machine_device_initcall(ep8248e, declare_of_platform_devices); */ static int __init ep8248e_probe(void) { - unsigned long root = of_get_flat_dt_root(); - return of_flat_dt_is_compatible(root, "fsl,ep8248e"); + return of_machine_is_compatible("fsl,ep8248e"); } define_machine(ep8248e) diff --git a/arch/powerpc/platforms/82xx/km82xx.c b/arch/powerpc/platforms/82xx/km82xx.c index 387b446f4161..28860e40b5db 100644 --- a/arch/powerpc/platforms/82xx/km82xx.c +++ b/arch/powerpc/platforms/82xx/km82xx.c @@ -198,8 +198,7 @@ machine_device_initcall(km82xx, declare_of_platform_devices); */ static int __init km82xx_probe(void) { - unsigned long root = of_get_flat_dt_root(); - return of_flat_dt_is_compatible(root, "keymile,km82xx"); + return of_machine_is_compatible("keymile,km82xx"); } define_machine(km82xx) diff --git a/arch/powerpc/platforms/82xx/mpc8272_ads.c b/arch/powerpc/platforms/82xx/mpc8272_ads.c index d24deacf07d0..d23c10a96bde 100644 --- a/arch/powerpc/platforms/82xx/mpc8272_ads.c +++ b/arch/powerpc/platforms/82xx/mpc8272_ads.c @@ -201,8 +201,7 @@ machine_device_initcall(mpc8272_ads, declare_of_platform_devices); */ static int __init mpc8272_ads_probe(void) { - unsigned long root = of_get_flat_dt_root(); - return of_flat_dt_is_compatible(root, "fsl,mpc8272ads"); + return of_machine_is_compatible("fsl,mpc8272ads"); } define_machine(mpc8272_ads) diff --git a/arch/powerpc/platforms/82xx/pq2.c b/arch/powerpc/platforms/82xx/pq2.c index fc8b2d6a7d8d..c4f7029fc9ae 100644 --- a/arch/powerpc/platforms/82xx/pq2.c +++ b/arch/powerpc/platforms/82xx/pq2.c @@ -22,7 +22,7 @@ #define RMR_CSRE 0x00000001 -void pq2_restart(char *cmd) +void __noreturn pq2_restart(char *cmd) { local_irq_disable(); setbits32(&cpm2_immr->im_clkrst.car_rmr, RMR_CSRE); diff --git a/arch/powerpc/platforms/82xx/pq2.h b/arch/powerpc/platforms/82xx/pq2.h index a41f84ae2325..3080ce3441c1 100644 --- a/arch/powerpc/platforms/82xx/pq2.h +++ b/arch/powerpc/platforms/82xx/pq2.h @@ -1,7 +1,7 @@ #ifndef _PQ2_H #define _PQ2_H -void pq2_restart(char *cmd); +void __noreturn pq2_restart(char *cmd); #ifdef CONFIG_PCI int pq2ads_pci_init_irq(void); diff --git a/arch/powerpc/platforms/82xx/pq2fads.c b/arch/powerpc/platforms/82xx/pq2fads.c index 3a5164ad10ad..6c654dc74a4b 100644 --- a/arch/powerpc/platforms/82xx/pq2fads.c +++ b/arch/powerpc/platforms/82xx/pq2fads.c @@ -164,8 +164,7 @@ static void __init pq2fads_setup_arch(void) */ static int __init pq2fads_probe(void) { - unsigned long root = of_get_flat_dt_root(); - return of_flat_dt_is_compatible(root, "fsl,pq2fads"); + return of_machine_is_compatible("fsl,pq2fads"); } static const struct of_device_id of_bus_ids[] __initconst = { diff --git a/arch/powerpc/platforms/83xx/asp834x.c b/arch/powerpc/platforms/83xx/asp834x.c index 464ea8e0292d..17e54339f8d9 100644 --- a/arch/powerpc/platforms/83xx/asp834x.c +++ b/arch/powerpc/platforms/83xx/asp834x.c @@ -43,8 +43,7 @@ machine_device_initcall(asp834x, mpc83xx_declare_of_platform_devices); */ static int __init asp834x_probe(void) { - unsigned long root = of_get_flat_dt_root(); - return of_flat_dt_is_compatible(root, "analogue-and-micro,asp8347e"); + return of_machine_is_compatible("analogue-and-micro,asp8347e"); } define_machine(asp834x) { diff --git a/arch/powerpc/platforms/83xx/km83xx.c b/arch/powerpc/platforms/83xx/km83xx.c index 4bc6bbbe9ada..e7fbd6366abb 100644 --- a/arch/powerpc/platforms/83xx/km83xx.c +++ b/arch/powerpc/platforms/83xx/km83xx.c @@ -171,11 +171,10 @@ static char *board[] __initdata = { */ static int __init mpc83xx_km_probe(void) { - unsigned long node = of_get_flat_dt_root(); int i = 0; while (board[i]) { - if (of_flat_dt_is_compatible(node, board[i])) + if (of_machine_is_compatible(board[i])) break; i++; } diff --git a/arch/powerpc/platforms/83xx/misc.c b/arch/powerpc/platforms/83xx/misc.c index 7e923cad56cf..8899aa9d11f5 100644 --- a/arch/powerpc/platforms/83xx/misc.c +++ b/arch/powerpc/platforms/83xx/misc.c @@ -35,7 +35,7 @@ static int __init mpc83xx_restart_init(void) arch_initcall(mpc83xx_restart_init); -void mpc83xx_restart(char *cmd) +void __noreturn mpc83xx_restart(char *cmd) { #define RST_OFFSET 0x00000900 #define RST_PROT_REG 0x00000018 diff --git a/arch/powerpc/platforms/83xx/mpc830x_rdb.c b/arch/powerpc/platforms/83xx/mpc830x_rdb.c index 4f2d9fea77b7..040d5d085467 100644 --- a/arch/powerpc/platforms/83xx/mpc830x_rdb.c +++ b/arch/powerpc/platforms/83xx/mpc830x_rdb.c @@ -46,7 +46,7 @@ static const char *board[] __initdata = { */ static int __init mpc830x_rdb_probe(void) { - return of_flat_dt_match(of_get_flat_dt_root(), board); + return of_device_compatible_match(of_root, board); } machine_device_initcall(mpc830x_rdb, mpc83xx_declare_of_platform_devices); diff --git a/arch/powerpc/platforms/83xx/mpc831x_rdb.c b/arch/powerpc/platforms/83xx/mpc831x_rdb.c index fa25977c52de..40e0d8307b59 100644 --- a/arch/powerpc/platforms/83xx/mpc831x_rdb.c +++ b/arch/powerpc/platforms/83xx/mpc831x_rdb.c @@ -46,7 +46,7 @@ static const char *board[] __initdata = { */ static int __init mpc831x_rdb_probe(void) { - return of_flat_dt_match(of_get_flat_dt_root(), board); + return of_device_compatible_match(of_root, board); } machine_device_initcall(mpc831x_rdb, mpc83xx_declare_of_platform_devices); diff --git a/arch/powerpc/platforms/83xx/mpc832x_mds.c b/arch/powerpc/platforms/83xx/mpc832x_mds.c index a973b2ae5df6..cdfa47c4d394 100644 --- a/arch/powerpc/platforms/83xx/mpc832x_mds.c +++ b/arch/powerpc/platforms/83xx/mpc832x_mds.c @@ -102,9 +102,7 @@ machine_device_initcall(mpc832x_mds, mpc83xx_declare_of_platform_devices); */ static int __init mpc832x_sys_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "MPC832xMDS"); + return of_machine_is_compatible("MPC832xMDS"); } define_machine(mpc832x_mds) { diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c index ea2b87d202ca..2ef03e7d248c 100644 --- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c +++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c @@ -220,9 +220,7 @@ machine_device_initcall(mpc832x_rdb, mpc83xx_declare_of_platform_devices); */ static int __init mpc832x_rdb_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "MPC832xRDB"); + return of_machine_is_compatible("MPC832xRDB"); } define_machine(mpc832x_rdb) { diff --git a/arch/powerpc/platforms/83xx/mpc834x_itx.c b/arch/powerpc/platforms/83xx/mpc834x_itx.c index 80aea8c4b5a3..8fd0c1e8b182 100644 --- a/arch/powerpc/platforms/83xx/mpc834x_itx.c +++ b/arch/powerpc/platforms/83xx/mpc834x_itx.c @@ -70,9 +70,7 @@ static void __init mpc834x_itx_setup_arch(void) */ static int __init mpc834x_itx_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "MPC834xMITX"); + return of_machine_is_compatible("MPC834xMITX"); } define_machine(mpc834x_itx) { diff --git a/arch/powerpc/platforms/83xx/mpc834x_mds.c b/arch/powerpc/platforms/83xx/mpc834x_mds.c index 553e793a4a93..eeaee6123bb3 100644 --- a/arch/powerpc/platforms/83xx/mpc834x_mds.c +++ b/arch/powerpc/platforms/83xx/mpc834x_mds.c @@ -91,9 +91,7 @@ machine_device_initcall(mpc834x_mds, mpc83xx_declare_of_platform_devices); */ static int __init mpc834x_mds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "MPC834xMDS"); + return of_machine_is_compatible("MPC834xMDS"); } define_machine(mpc834x_mds) { diff --git a/arch/powerpc/platforms/83xx/mpc836x_mds.c b/arch/powerpc/platforms/83xx/mpc836x_mds.c index dd70b85f56d4..dacf4c2df069 100644 --- a/arch/powerpc/platforms/83xx/mpc836x_mds.c +++ b/arch/powerpc/platforms/83xx/mpc836x_mds.c @@ -209,9 +209,7 @@ machine_arch_initcall(mpc836x_mds, mpc836x_usb_cfg); */ static int __init mpc836x_mds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "MPC836xMDS"); + return of_machine_is_compatible("MPC836xMDS"); } define_machine(mpc836x_mds) { diff --git a/arch/powerpc/platforms/83xx/mpc836x_rdk.c b/arch/powerpc/platforms/83xx/mpc836x_rdk.c index 4cd7153a6c88..cf67ac93ddcb 100644 --- a/arch/powerpc/platforms/83xx/mpc836x_rdk.c +++ b/arch/powerpc/platforms/83xx/mpc836x_rdk.c @@ -42,9 +42,7 @@ static void __init mpc836x_rdk_setup_arch(void) */ static int __init mpc836x_rdk_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,mpc8360rdk"); + return of_machine_is_compatible("fsl,mpc8360rdk"); } define_machine(mpc836x_rdk) { diff --git a/arch/powerpc/platforms/83xx/mpc837x_mds.c b/arch/powerpc/platforms/83xx/mpc837x_mds.c index e53a60b6c863..652b97d699c9 100644 --- a/arch/powerpc/platforms/83xx/mpc837x_mds.c +++ b/arch/powerpc/platforms/83xx/mpc837x_mds.c @@ -93,9 +93,7 @@ machine_device_initcall(mpc837x_mds, mpc83xx_declare_of_platform_devices); */ static int __init mpc837x_mds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,mpc837xmds"); + return of_machine_is_compatible("fsl,mpc837xmds"); } define_machine(mpc837x_mds) { diff --git a/arch/powerpc/platforms/83xx/mpc837x_rdb.c b/arch/powerpc/platforms/83xx/mpc837x_rdb.c index 9813c81e8e5b..667731d81676 100644 --- a/arch/powerpc/platforms/83xx/mpc837x_rdb.c +++ b/arch/powerpc/platforms/83xx/mpc837x_rdb.c @@ -73,7 +73,7 @@ static const char * const board[] __initconst = { */ static int __init mpc837x_rdb_probe(void) { - return of_flat_dt_match(of_get_flat_dt_root(), board); + return of_device_compatible_match(of_root, board); } define_machine(mpc837x_rdb) { diff --git a/arch/powerpc/platforms/83xx/mpc83xx.h b/arch/powerpc/platforms/83xx/mpc83xx.h index 0cf74d7ea1c5..ad484199eff7 100644 --- a/arch/powerpc/platforms/83xx/mpc83xx.h +++ b/arch/powerpc/platforms/83xx/mpc83xx.h @@ -65,7 +65,7 @@ * mpc83xx_* files. Mostly for use by mpc83xx_setup */ -extern void mpc83xx_restart(char *cmd); +extern void __noreturn mpc83xx_restart(char *cmd); extern long mpc83xx_time_init(void); extern int mpc837x_usb_cfg(void); extern int mpc834x_usb_cfg(void); diff --git a/arch/powerpc/platforms/83xx/sbc834x.c b/arch/powerpc/platforms/83xx/sbc834x.c index 26cb3e934722..b867e88dfb0d 100644 --- a/arch/powerpc/platforms/83xx/sbc834x.c +++ b/arch/powerpc/platforms/83xx/sbc834x.c @@ -60,9 +60,7 @@ machine_device_initcall(sbc834x, mpc83xx_declare_of_platform_devices); */ static int __init sbc834x_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "SBC834xE"); + return of_machine_is_compatible("SBC834xE"); } define_machine(sbc834x) { diff --git a/arch/powerpc/platforms/85xx/bsc913x_qds.c b/arch/powerpc/platforms/85xx/bsc913x_qds.c index dcfafd6b91ee..07dd6ae3ec52 100644 --- a/arch/powerpc/platforms/85xx/bsc913x_qds.c +++ b/arch/powerpc/platforms/85xx/bsc913x_qds.c @@ -60,9 +60,7 @@ machine_arch_initcall(bsc9132_qds, mpc85xx_common_publish_devices); static int __init bsc9132_qds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,bsc9132qds"); + return of_machine_is_compatible("fsl,bsc9132qds"); } define_machine(bsc9132_qds) { diff --git a/arch/powerpc/platforms/85xx/bsc913x_rdb.c b/arch/powerpc/platforms/85xx/bsc913x_rdb.c index 9d57bedb940c..e48f6710e6d5 100644 --- a/arch/powerpc/platforms/85xx/bsc913x_rdb.c +++ b/arch/powerpc/platforms/85xx/bsc913x_rdb.c @@ -50,9 +50,7 @@ machine_device_initcall(bsc9131_rdb, mpc85xx_common_publish_devices); static int __init bsc9131_rdb_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,bsc9131rdb"); + return of_machine_is_compatible("fsl,bsc9131rdb"); } define_machine(bsc9131_rdb) { diff --git a/arch/powerpc/platforms/85xx/c293pcie.c b/arch/powerpc/platforms/85xx/c293pcie.c index 61bc851e9a8e..3b9e3f0f9aec 100644 --- a/arch/powerpc/platforms/85xx/c293pcie.c +++ b/arch/powerpc/platforms/85xx/c293pcie.c @@ -54,9 +54,7 @@ machine_arch_initcall(c293_pcie, mpc85xx_common_publish_devices); */ static int __init c293_pcie_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "fsl,C293PCIE")) + if (of_machine_is_compatible("fsl,C293PCIE")) return 1; return 0; } diff --git a/arch/powerpc/platforms/85xx/corenet_generic.c b/arch/powerpc/platforms/85xx/corenet_generic.c index a2b0bc859de0..3a6a84f07f43 100644 --- a/arch/powerpc/platforms/85xx/corenet_generic.c +++ b/arch/powerpc/platforms/85xx/corenet_generic.c @@ -170,20 +170,19 @@ static const char * const boards[] __initconst = { */ static int __init corenet_generic_probe(void) { - unsigned long root = of_get_flat_dt_root(); char hv_compat[24]; int i; #ifdef CONFIG_SMP extern struct smp_ops_t smp_85xx_ops; #endif - if (of_flat_dt_match(root, boards)) + if (of_device_compatible_match(of_root, boards)) return 1; /* Check if we're running under the Freescale hypervisor */ for (i = 0; boards[i]; i++) { snprintf(hv_compat, sizeof(hv_compat), "%s-hv", boards[i]); - if (of_flat_dt_is_compatible(root, hv_compat)) { + if (of_machine_is_compatible(hv_compat)) { ppc_md.init_IRQ = ehv_pic_init; ppc_md.get_irq = ehv_pic_get_irq; diff --git a/arch/powerpc/platforms/85xx/ge_imp3a.c b/arch/powerpc/platforms/85xx/ge_imp3a.c index 11790e074c8a..14af36a7fa9c 100644 --- a/arch/powerpc/platforms/85xx/ge_imp3a.c +++ b/arch/powerpc/platforms/85xx/ge_imp3a.c @@ -47,9 +47,8 @@ void __init ge_imp3a_pic_init(void) struct mpic *mpic; struct device_node *np; struct device_node *cascade_node = NULL; - unsigned long root = of_get_flat_dt_root(); - if (of_flat_dt_is_compatible(root, "fsl,MPC8572DS-CAMP")) { + if (of_machine_is_compatible("fsl,MPC8572DS-CAMP")) { mpic = mpic_alloc(NULL, 0, MPIC_NO_RESET | MPIC_BIG_ENDIAN | @@ -198,9 +197,7 @@ static void ge_imp3a_show_cpuinfo(struct seq_file *m) */ static int __init ge_imp3a_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "ge,IMP3A"); + return of_machine_is_compatible("ge,IMP3A"); } machine_arch_initcall(ge_imp3a, mpc85xx_common_publish_devices); diff --git a/arch/powerpc/platforms/85xx/ksi8560.c b/arch/powerpc/platforms/85xx/ksi8560.c index 3dc1bda3ddc3..6ef8580fdc0e 100644 --- a/arch/powerpc/platforms/85xx/ksi8560.c +++ b/arch/powerpc/platforms/85xx/ksi8560.c @@ -44,7 +44,7 @@ static void __iomem *cpld_base = NULL; -static void machine_restart(char *cmd) +static void __noreturn machine_restart(char *cmd) { if (cpld_base) out_8(cpld_base + KSI8560_CPLD_RCR1, KSI8560_CPLD_RCR1_CPUHR); @@ -176,9 +176,7 @@ machine_device_initcall(ksi8560, mpc85xx_common_publish_devices); */ static int __init ksi8560_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "emerson,KSI8560"); + return of_machine_is_compatible("emerson,KSI8560"); } define_machine(ksi8560) { diff --git a/arch/powerpc/platforms/85xx/mpc8536_ds.c b/arch/powerpc/platforms/85xx/mpc8536_ds.c index a378ba3519e9..6ba687f19e45 100644 --- a/arch/powerpc/platforms/85xx/mpc8536_ds.c +++ b/arch/powerpc/platforms/85xx/mpc8536_ds.c @@ -64,9 +64,7 @@ machine_arch_initcall(mpc8536_ds, swiotlb_setup_bus_notifier); */ static int __init mpc8536_ds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,mpc8536ds"); + return of_machine_is_compatible("fsl,mpc8536ds"); } define_machine(mpc8536_ds) { diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c index de72a5f464b1..8756715c7a47 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c @@ -160,9 +160,7 @@ machine_arch_initcall(mpc85xx_ads, mpc85xx_common_publish_devices); */ static int __init mpc85xx_ads_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "MPC85xxADS"); + return of_machine_is_compatible("MPC85xxADS"); } define_machine(mpc85xx_ads) { diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c index d7e87ff912d7..62f171c71c4c 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c @@ -83,7 +83,7 @@ static int mpc85xx_exclude_device(struct pci_controller *hose, return PCIBIOS_SUCCESSFUL; } -static void mpc85xx_cds_restart(char *cmd) +static void __noreturn mpc85xx_cds_restart(char *cmd) { struct pci_dev *dev; u_char tmp; @@ -367,9 +367,7 @@ static void mpc85xx_cds_show_cpuinfo(struct seq_file *m) */ static int __init mpc85xx_cds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "MPC85xxCDS"); + return of_machine_is_compatible("MPC85xxCDS"); } machine_arch_initcall(mpc85xx_cds, mpc85xx_common_publish_devices); diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c index f858306dba6a..6bc07d837b1c 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c @@ -66,9 +66,7 @@ void __init mpc85xx_ds_pic_init(void) struct device_node *cascade_node = NULL; int cascade_irq; #endif - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "fsl,MPC8572DS-CAMP")) { + if (of_machine_is_compatible("fsl,MPC8572DS-CAMP")) { mpic = mpic_alloc(NULL, 0, MPIC_NO_RESET | MPIC_BIG_ENDIAN | @@ -169,9 +167,7 @@ static void __init mpc85xx_ds_setup_arch(void) */ static int __init mpc8544_ds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return !!of_flat_dt_is_compatible(root, "MPC8544DS"); + return !!of_machine_is_compatible("MPC8544DS"); } machine_arch_initcall(mpc8544_ds, mpc85xx_common_publish_devices); @@ -187,9 +183,7 @@ machine_arch_initcall(p2020_ds, swiotlb_setup_bus_notifier); */ static int __init mpc8572_ds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return !!of_flat_dt_is_compatible(root, "fsl,MPC8572DS"); + return !!of_machine_is_compatible("fsl,MPC8572DS"); } /* @@ -197,9 +191,7 @@ static int __init mpc8572_ds_probe(void) */ static int __init p2020_ds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return !!of_flat_dt_is_compatible(root, "fsl,P2020DS"); + return !!of_machine_is_compatible("fsl,P2020DS"); } define_machine(mpc8544_ds) { diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index f61cbe235581..fa9cd710d2ae 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -376,9 +376,7 @@ static void __init mpc85xx_mds_pic_init(void) static int __init mpc85xx_mds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "MPC85xxMDS"); + return of_machine_is_compatible("MPC85xxMDS"); } define_machine(mpc8568_mds) { @@ -398,9 +396,7 @@ define_machine(mpc8568_mds) { static int __init mpc8569_mds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,MPC8569EMDS"); + return of_machine_is_compatible("fsl,MPC8569EMDS"); } define_machine(mpc8569_mds) { @@ -420,9 +416,7 @@ define_machine(mpc8569_mds) { static int __init p1021_mds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,P1021MDS"); + return of_machine_is_compatible("fsl,P1021MDS"); } diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c index 3f4dad133338..c1499cbf3786 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c @@ -47,13 +47,12 @@ void __init mpc85xx_rdb_pic_init(void) { struct mpic *mpic; - unsigned long root = of_get_flat_dt_root(); #ifdef CONFIG_QUICC_ENGINE struct device_node *np; #endif - if (of_flat_dt_is_compatible(root, "fsl,MPC85XXRDB-CAMP")) { + if (of_machine_is_compatible("fsl,MPC85XXRDB-CAMP")) { mpic = mpic_alloc(NULL, 0, MPIC_NO_RESET | MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU, @@ -148,80 +147,60 @@ machine_arch_initcall(p1024_rdb, mpc85xx_common_publish_devices); */ static int __init p2020_rdb_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "fsl,P2020RDB")) + if (of_machine_is_compatible("fsl,P2020RDB")) return 1; return 0; } static int __init p1020_rdb_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "fsl,P1020RDB")) + if (of_machine_is_compatible("fsl,P1020RDB")) return 1; return 0; } static int __init p1020_rdb_pc_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,P1020RDB-PC"); + return of_machine_is_compatible("fsl,P1020RDB-PC"); } static int __init p1020_rdb_pd_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,P1020RDB-PD"); + return of_machine_is_compatible("fsl,P1020RDB-PD"); } static int __init p1021_rdb_pc_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "fsl,P1021RDB-PC")) + if (of_machine_is_compatible("fsl,P1021RDB-PC")) return 1; return 0; } static int __init p2020_rdb_pc_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "fsl,P2020RDB-PC")) + if (of_machine_is_compatible("fsl,P2020RDB-PC")) return 1; return 0; } static int __init p1025_rdb_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,P1025RDB"); + return of_machine_is_compatible("fsl,P1025RDB"); } static int __init p1020_mbg_pc_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,P1020MBG-PC"); + return of_machine_is_compatible("fsl,P1020MBG-PC"); } static int __init p1020_utm_pc_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,P1020UTM-PC"); + return of_machine_is_compatible("fsl,P1020UTM-PC"); } static int __init p1024_rdb_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,P1024RDB"); + return of_machine_is_compatible("fsl,P1024RDB"); } define_machine(p2020_rdb) { diff --git a/arch/powerpc/platforms/85xx/mvme2500.c b/arch/powerpc/platforms/85xx/mvme2500.c index 1233050560ae..acc3d0d6049d 100644 --- a/arch/powerpc/platforms/85xx/mvme2500.c +++ b/arch/powerpc/platforms/85xx/mvme2500.c @@ -53,9 +53,7 @@ machine_arch_initcall(mvme2500, mpc85xx_common_publish_devices); */ static int __init mvme2500_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "artesyn,MVME2500"); + return of_machine_is_compatible("artesyn,MVME2500"); } define_machine(mvme2500) { diff --git a/arch/powerpc/platforms/85xx/p1010rdb.c b/arch/powerpc/platforms/85xx/p1010rdb.c index ad1a3d438a9e..661d7b59e413 100644 --- a/arch/powerpc/platforms/85xx/p1010rdb.c +++ b/arch/powerpc/platforms/85xx/p1010rdb.c @@ -62,11 +62,9 @@ machine_arch_initcall(p1010_rdb, swiotlb_setup_bus_notifier); */ static int __init p1010_rdb_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "fsl,P1010RDB")) + if (of_machine_is_compatible("fsl,P1010RDB")) return 1; - if (of_flat_dt_is_compatible(root, "fsl,P1010RDB-PB")) + if (of_machine_is_compatible("fsl,P1010RDB-PB")) return 1; return 0; } diff --git a/arch/powerpc/platforms/85xx/p1022_ds.c b/arch/powerpc/platforms/85xx/p1022_ds.c index 371df822e88e..63568d68c76f 100644 --- a/arch/powerpc/platforms/85xx/p1022_ds.c +++ b/arch/powerpc/platforms/85xx/p1022_ds.c @@ -555,9 +555,7 @@ machine_arch_initcall(p1022_ds, swiotlb_setup_bus_notifier); */ static int __init p1022_ds_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,p1022ds"); + return of_machine_is_compatible("fsl,p1022ds"); } define_machine(p1022_ds) { diff --git a/arch/powerpc/platforms/85xx/p1022_rdk.c b/arch/powerpc/platforms/85xx/p1022_rdk.c index 5087becaa8bc..2f2943600301 100644 --- a/arch/powerpc/platforms/85xx/p1022_rdk.c +++ b/arch/powerpc/platforms/85xx/p1022_rdk.c @@ -135,9 +135,7 @@ machine_arch_initcall(p1022_rdk, swiotlb_setup_bus_notifier); */ static int __init p1022_rdk_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,p1022rdk"); + return of_machine_is_compatible("fsl,p1022rdk"); } define_machine(p1022_rdk) { diff --git a/arch/powerpc/platforms/85xx/p1023_rdb.c b/arch/powerpc/platforms/85xx/p1023_rdb.c index d5b7509825de..40d8de57c341 100644 --- a/arch/powerpc/platforms/85xx/p1023_rdb.c +++ b/arch/powerpc/platforms/85xx/p1023_rdb.c @@ -100,9 +100,7 @@ static void __init mpc85xx_rdb_pic_init(void) static int __init p1023_rdb_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,P1023RDB"); + return of_machine_is_compatible("fsl,P1023RDB"); } diff --git a/arch/powerpc/platforms/85xx/ppa8548.c b/arch/powerpc/platforms/85xx/ppa8548.c index 12019f17f297..2410167b290a 100644 --- a/arch/powerpc/platforms/85xx/ppa8548.c +++ b/arch/powerpc/platforms/85xx/ppa8548.c @@ -81,9 +81,7 @@ machine_device_initcall(ppa8548, declare_of_platform_devices); */ static int __init ppa8548_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "ppa8548"); + return of_machine_is_compatible("ppa8548"); } define_machine(ppa8548) { diff --git a/arch/powerpc/platforms/85xx/qemu_e500.c b/arch/powerpc/platforms/85xx/qemu_e500.c index 8ad2fe6f200a..50d745809809 100644 --- a/arch/powerpc/platforms/85xx/qemu_e500.c +++ b/arch/powerpc/platforms/85xx/qemu_e500.c @@ -62,9 +62,7 @@ static void __init qemu_e500_setup_arch(void) */ static int __init qemu_e500_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return !!of_flat_dt_is_compatible(root, "fsl,qemu-e500"); + return !!of_machine_is_compatible("fsl,qemu-e500"); } machine_arch_initcall(qemu_e500, mpc85xx_common_publish_devices); diff --git a/arch/powerpc/platforms/85xx/sbc8548.c b/arch/powerpc/platforms/85xx/sbc8548.c index b07214666d65..62b6c45a5a9b 100644 --- a/arch/powerpc/platforms/85xx/sbc8548.c +++ b/arch/powerpc/platforms/85xx/sbc8548.c @@ -120,9 +120,7 @@ machine_arch_initcall(sbc8548, mpc85xx_common_publish_devices); */ static int __init sbc8548_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "SBC8548"); + return of_machine_is_compatible("SBC8548"); } define_machine(sbc8548) { diff --git a/arch/powerpc/platforms/85xx/socrates.c b/arch/powerpc/platforms/85xx/socrates.c index ae368e0e1076..cd255acde2e2 100644 --- a/arch/powerpc/platforms/85xx/socrates.c +++ b/arch/powerpc/platforms/85xx/socrates.c @@ -79,9 +79,7 @@ machine_arch_initcall(socrates, mpc85xx_common_publish_devices); */ static int __init socrates_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "abb,socrates")) + if (of_machine_is_compatible("abb,socrates")) return 1; return 0; diff --git a/arch/powerpc/platforms/85xx/stx_gp3.c b/arch/powerpc/platforms/85xx/stx_gp3.c index 6f4939b6309e..91b824c4dc08 100644 --- a/arch/powerpc/platforms/85xx/stx_gp3.c +++ b/arch/powerpc/platforms/85xx/stx_gp3.c @@ -93,9 +93,7 @@ machine_arch_initcall(stx_gp3, mpc85xx_common_publish_devices); */ static int __init stx_gp3_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "stx,gp3-8560"); + return of_machine_is_compatible("stx,gp3-8560"); } define_machine(stx_gp3) { diff --git a/arch/powerpc/platforms/85xx/tqm85xx.c b/arch/powerpc/platforms/85xx/tqm85xx.c index ec0b7272fae2..b7c54454d611 100644 --- a/arch/powerpc/platforms/85xx/tqm85xx.c +++ b/arch/powerpc/platforms/85xx/tqm85xx.c @@ -122,7 +122,7 @@ static const char * const board[] __initconst = { */ static int __init tqm85xx_probe(void) { - return of_flat_dt_match(of_get_flat_dt_root(), board); + return of_device_compatible_match(of_root, board); } define_machine(tqm85xx) { diff --git a/arch/powerpc/platforms/85xx/twr_p102x.c b/arch/powerpc/platforms/85xx/twr_p102x.c index 71bc255b4324..1bc02a87f597 100644 --- a/arch/powerpc/platforms/85xx/twr_p102x.c +++ b/arch/powerpc/platforms/85xx/twr_p102x.c @@ -128,9 +128,7 @@ machine_arch_initcall(twr_p1025, mpc85xx_common_publish_devices); static int __init twr_p1025_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "fsl,TWR-P1025"); + return of_machine_is_compatible("fsl,TWR-P1025"); } define_machine(twr_p1025) { diff --git a/arch/powerpc/platforms/85xx/xes_mpc85xx.c b/arch/powerpc/platforms/85xx/xes_mpc85xx.c index 1a9c1085855f..cf0c70ff026e 100644 --- a/arch/powerpc/platforms/85xx/xes_mpc85xx.c +++ b/arch/powerpc/platforms/85xx/xes_mpc85xx.c @@ -144,23 +144,17 @@ machine_arch_initcall(xes_mpc8540, mpc85xx_common_publish_devices); */ static int __init xes_mpc8572_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "xes,MPC8572"); + return of_machine_is_compatible("xes,MPC8572"); } static int __init xes_mpc8548_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "xes,MPC8548"); + return of_machine_is_compatible("xes,MPC8548"); } static int __init xes_mpc8540_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "xes,MPC8540"); + return of_machine_is_compatible("xes,MPC8540"); } define_machine(xes_mpc8572) { diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig index 3988f16e46c1..ce619bd1f82d 100644 --- a/arch/powerpc/platforms/86xx/Kconfig +++ b/arch/powerpc/platforms/86xx/Kconfig @@ -60,6 +60,11 @@ config GEF_SBC610 help This option enables support for the GE SBC610. +config MVME7100 + bool "Artesyn MVME7100" + help + This option enables support for the Emerson/Artesyn MVME7100 board. + endif config MPC8641 @@ -68,7 +73,8 @@ config MPC8641 select FSL_PCI if PCI select PPC_UDBG_16550 select MPIC - default y if MPC8641_HPCN || SBC8641D || GEF_SBC610 || GEF_SBC310 || GEF_PPC9A + default y if MPC8641_HPCN || SBC8641D || GEF_SBC610 || GEF_SBC310 || GEF_PPC9A \ + || MVME7100 config MPC8610 bool diff --git a/arch/powerpc/platforms/86xx/Makefile b/arch/powerpc/platforms/86xx/Makefile index 2d889ad7dc89..01958fedc3f2 100644 --- a/arch/powerpc/platforms/86xx/Makefile +++ b/arch/powerpc/platforms/86xx/Makefile @@ -10,3 +10,4 @@ obj-$(CONFIG_MPC8610_HPCD) += mpc8610_hpcd.o obj-$(CONFIG_GEF_SBC610) += gef_sbc610.o obj-$(CONFIG_GEF_SBC310) += gef_sbc310.o obj-$(CONFIG_GEF_PPC9A) += gef_ppc9a.o +obj-$(CONFIG_MVME7100) += mvme7100.o diff --git a/arch/powerpc/platforms/86xx/gef_ppc9a.c b/arch/powerpc/platforms/86xx/gef_ppc9a.c index 8e63b752712c..ef684afb63c6 100644 --- a/arch/powerpc/platforms/86xx/gef_ppc9a.c +++ b/arch/powerpc/platforms/86xx/gef_ppc9a.c @@ -189,9 +189,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB, */ static int __init gef_ppc9a_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "gef,ppc9a")) + if (of_machine_is_compatible("gef,ppc9a")) return 1; return 0; diff --git a/arch/powerpc/platforms/86xx/gef_sbc310.c b/arch/powerpc/platforms/86xx/gef_sbc310.c index 0e0be94f551f..67dd0c231646 100644 --- a/arch/powerpc/platforms/86xx/gef_sbc310.c +++ b/arch/powerpc/platforms/86xx/gef_sbc310.c @@ -176,9 +176,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB, */ static int __init gef_sbc310_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "gef,sbc310")) + if (of_machine_is_compatible("gef,sbc310")) return 1; return 0; diff --git a/arch/powerpc/platforms/86xx/gef_sbc610.c b/arch/powerpc/platforms/86xx/gef_sbc610.c index e8292b492d7e..805026976cac 100644 --- a/arch/powerpc/platforms/86xx/gef_sbc610.c +++ b/arch/powerpc/platforms/86xx/gef_sbc610.c @@ -166,9 +166,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB, */ static int __init gef_sbc610_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "gef,sbc610")) + if (of_machine_is_compatible("gef,sbc610")) return 1; return 0; diff --git a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c index 957473e5c8e5..fef0582eddf1 100644 --- a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c +++ b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c @@ -319,9 +319,7 @@ static void __init mpc86xx_hpcd_setup_arch(void) */ static int __init mpc86xx_hpcd_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "fsl,MPC8610HPCD")) + if (of_machine_is_compatible("fsl,MPC8610HPCD")) return 1; /* Looks good */ return 0; diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c index e5084811b9c6..5ae42a037065 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c @@ -96,13 +96,11 @@ mpc86xx_hpcn_show_cpuinfo(struct seq_file *m) */ static int __init mpc86xx_hpcn_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "fsl,mpc8641hpcn")) + if (of_machine_is_compatible("fsl,mpc8641hpcn")) return 1; /* Looks good */ /* Be nice and don't give silent boot death. Delete this in 2.6.27 */ - if (of_flat_dt_is_compatible(root, "mpc86xx")) { + if (of_machine_is_compatible("mpc86xx")) { pr_warning("WARNING: your dts/dtb is old. You must update before the next kernel release\n"); return 1; } diff --git a/arch/powerpc/platforms/86xx/mvme7100.c b/arch/powerpc/platforms/86xx/mvme7100.c new file mode 100644 index 000000000000..addb41e7cd14 --- /dev/null +++ b/arch/powerpc/platforms/86xx/mvme7100.c @@ -0,0 +1,121 @@ +/* + * Board setup routines for the Emerson/Artesyn MVME7100 + * + * Copyright 2016 Elettra-Sincrotrone Trieste S.C.p.A. + * + * Author: Alessio Igor Bogani <alessio.bogani@elettra.eu> + * + * Based on earlier code by: + * + * Ajit Prem <ajit.prem@emerson.com> + * Copyright 2008 Emerson + * + * USB host fixup is borrowed by: + * + * Martyn Welch <martyn.welch@ge.com> + * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/pci.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/of_address.h> +#include <asm/udbg.h> +#include <asm/mpic.h> +#include <sysdev/fsl_soc.h> +#include <sysdev/fsl_pci.h> + +#include "mpc86xx.h" + +#define MVME7100_INTERRUPT_REG_2_OFFSET 0x05 +#define MVME7100_DS1375_MASK 0x40 +#define MVME7100_MAX6649_MASK 0x20 +#define MVME7100_ABORT_MASK 0x10 + +/* + * Setup the architecture + */ +static void __init mvme7100_setup_arch(void) +{ + struct device_node *bcsr_node; + void __iomem *mvme7100_regs = NULL; + u8 reg; + + if (ppc_md.progress) + ppc_md.progress("mvme7100_setup_arch()", 0); + +#ifdef CONFIG_SMP + mpc86xx_smp_init(); +#endif + + fsl_pci_assign_primary(); + + /* Remap BCSR registers */ + bcsr_node = of_find_compatible_node(NULL, NULL, + "artesyn,mvme7100-bcsr"); + if (bcsr_node) { + mvme7100_regs = of_iomap(bcsr_node, 0); + of_node_put(bcsr_node); + } + + if (mvme7100_regs) { + /* Disable ds1375, max6649, and abort interrupts */ + reg = readb(mvme7100_regs + MVME7100_INTERRUPT_REG_2_OFFSET); + reg |= MVME7100_DS1375_MASK | MVME7100_MAX6649_MASK + | MVME7100_ABORT_MASK; + writeb(reg, mvme7100_regs + MVME7100_INTERRUPT_REG_2_OFFSET); + } else + pr_warn("Unable to map board registers\n"); + + pr_info("MVME7100 board from Artesyn\n"); +} + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init mvme7100_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + return of_flat_dt_is_compatible(root, "artesyn,MVME7100"); +} + +static void mvme7100_usb_host_fixup(struct pci_dev *pdev) +{ + unsigned int val; + + if (!machine_is(mvme7100)) + return; + + /* Ensure only ports 1 & 2 are enabled */ + pci_read_config_dword(pdev, 0xe0, &val); + pci_write_config_dword(pdev, 0xe0, (val & ~7) | 0x2); + + /* System clock is 48-MHz Oscillator and EHCI Enabled. */ + pci_write_config_dword(pdev, 0xe4, 1 << 5); +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB, + mvme7100_usb_host_fixup); + +machine_arch_initcall(mvme7100, mpc86xx_common_publish_devices); + +define_machine(mvme7100) { + .name = "MVME7100", + .probe = mvme7100_probe, + .setup_arch = mvme7100_setup_arch, + .init_IRQ = mpc86xx_init_irq, + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .time_init = mpc86xx_time_init, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif +}; diff --git a/arch/powerpc/platforms/86xx/sbc8641d.c b/arch/powerpc/platforms/86xx/sbc8641d.c index 2a9cf278c12a..52af5735742e 100644 --- a/arch/powerpc/platforms/86xx/sbc8641d.c +++ b/arch/powerpc/platforms/86xx/sbc8641d.c @@ -67,9 +67,7 @@ sbc8641_show_cpuinfo(struct seq_file *m) */ static int __init sbc8641_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "wind,sbc8641")) + if (of_machine_is_compatible("wind,sbc8641")) return 1; /* Looks good */ return 0; diff --git a/arch/powerpc/platforms/8xx/adder875.c b/arch/powerpc/platforms/8xx/adder875.c index 61cae4c1edb8..333dece79394 100644 --- a/arch/powerpc/platforms/8xx/adder875.c +++ b/arch/powerpc/platforms/8xx/adder875.c @@ -88,8 +88,7 @@ static void __init adder875_setup(void) static int __init adder875_probe(void) { - unsigned long root = of_get_flat_dt_root(); - return of_flat_dt_is_compatible(root, "analogue-and-micro,adder875"); + return of_machine_is_compatible("analogue-and-micro,adder875"); } static const struct of_device_id of_bus_ids[] __initconst = { diff --git a/arch/powerpc/platforms/8xx/ep88xc.c b/arch/powerpc/platforms/8xx/ep88xc.c index 2bedeb7d5f8f..cd0d90f1fb1c 100644 --- a/arch/powerpc/platforms/8xx/ep88xc.c +++ b/arch/powerpc/platforms/8xx/ep88xc.c @@ -143,8 +143,7 @@ static void __init ep88xc_setup_arch(void) static int __init ep88xc_probe(void) { - unsigned long root = of_get_flat_dt_root(); - return of_flat_dt_is_compatible(root, "fsl,ep88xc"); + return of_machine_is_compatible("fsl,ep88xc"); } static const struct of_device_id of_bus_ids[] __initconst = { diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c index c289fc77b4ba..b1ab6e96cb31 100644 --- a/arch/powerpc/platforms/8xx/m8xx_setup.c +++ b/arch/powerpc/platforms/8xx/m8xx_setup.c @@ -198,7 +198,7 @@ void mpc8xx_get_rtc_time(struct rtc_time *tm) return; } -void mpc8xx_restart(char *cmd) +void __noreturn mpc8xx_restart(char *cmd) { car8xx_t __iomem *clk_r = immr_map(im_clkrst); diff --git a/arch/powerpc/platforms/8xx/mpc86xads_setup.c b/arch/powerpc/platforms/8xx/mpc86xads_setup.c index 78180c5e73ff..8d02f5ff4481 100644 --- a/arch/powerpc/platforms/8xx/mpc86xads_setup.c +++ b/arch/powerpc/platforms/8xx/mpc86xads_setup.c @@ -118,8 +118,7 @@ static void __init mpc86xads_setup_arch(void) static int __init mpc86xads_probe(void) { - unsigned long root = of_get_flat_dt_root(); - return of_flat_dt_is_compatible(root, "fsl,mpc866ads"); + return of_machine_is_compatible("fsl,mpc866ads"); } static const struct of_device_id of_bus_ids[] __initconst = { diff --git a/arch/powerpc/platforms/8xx/mpc885ads_setup.c b/arch/powerpc/platforms/8xx/mpc885ads_setup.c index 4d62bf9dc789..e821a42d5816 100644 --- a/arch/powerpc/platforms/8xx/mpc885ads_setup.c +++ b/arch/powerpc/platforms/8xx/mpc885ads_setup.c @@ -193,8 +193,7 @@ static void __init mpc885ads_setup_arch(void) static int __init mpc885ads_probe(void) { - unsigned long root = of_get_flat_dt_root(); - return of_flat_dt_is_compatible(root, "fsl,mpc885ads"); + return of_machine_is_compatible("fsl,mpc885ads"); } static const struct of_device_id of_bus_ids[] __initconst = { diff --git a/arch/powerpc/platforms/8xx/mpc8xx.h b/arch/powerpc/platforms/8xx/mpc8xx.h index 239a243a6161..31cc2ecace42 100644 --- a/arch/powerpc/platforms/8xx/mpc8xx.h +++ b/arch/powerpc/platforms/8xx/mpc8xx.h @@ -11,7 +11,7 @@ #ifndef __MPC8xx_H #define __MPC8xx_H -extern void mpc8xx_restart(char *cmd); +extern void __noreturn mpc8xx_restart(char *cmd); extern void mpc8xx_calibrate_decr(void); extern int mpc8xx_set_rtc_time(struct rtc_time *tm); extern void mpc8xx_get_rtc_time(struct rtc_time *tm); diff --git a/arch/powerpc/platforms/8xx/tqm8xx_setup.c b/arch/powerpc/platforms/8xx/tqm8xx_setup.c index bee47a2b23e6..4cea8b1afa44 100644 --- a/arch/powerpc/platforms/8xx/tqm8xx_setup.c +++ b/arch/powerpc/platforms/8xx/tqm8xx_setup.c @@ -119,9 +119,7 @@ static void __init tqm8xx_setup_arch(void) static int __init tqm8xx_probe(void) { - unsigned long node = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(node, "tqc,tqm8xx"); + return of_machine_is_compatible("tqc,tqm8xx"); } static const struct of_device_id of_bus_ids[] __initconst = { diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 77e9b8d591fb..f32edec13fd1 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -1,7 +1,6 @@ config PPC64 bool "64-bit kernel" default n - select HAVE_VIRT_CPU_ACCOUNTING select ZLIB_DEFLATE help This option selects whether a 32-bit or a 64-bit kernel diff --git a/arch/powerpc/platforms/amigaone/setup.c b/arch/powerpc/platforms/amigaone/setup.c index 2fe12046279e..45cb9821173c 100644 --- a/arch/powerpc/platforms/amigaone/setup.c +++ b/arch/powerpc/platforms/amigaone/setup.c @@ -123,7 +123,7 @@ static int __init request_isa_regions(void) } machine_device_initcall(amigaone, request_isa_regions); -void amigaone_restart(char *cmd) +void __noreturn amigaone_restart(char *cmd) { local_irq_disable(); @@ -143,9 +143,7 @@ void amigaone_restart(char *cmd) static int __init amigaone_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (of_flat_dt_is_compatible(root, "eyetech,amigaone")) { + if (of_machine_is_compatible("eyetech,amigaone")) { /* * Coherent memory access cause complete system lockup! Thus * disable this CPU feature, even if the CPU needs it. diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index 14a582b21274..9027d7c48507 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -178,7 +178,7 @@ static int tce_build_cell(struct iommu_table *tbl, long index, long npages, * default for now.*/ #ifdef CELL_IOMMU_STRICT_PROTECTION /* to avoid referencing a global, we use a trick here to setup the - * protection bit. "prot" is setup to be 3 fields of 4 bits apprended + * protection bit. "prot" is setup to be 3 fields of 4 bits appended * together for each of the 3 supported direction values. It is then * shifted left so that the fields matching the desired direction * lands on the appropriate bits, and other bits are masked out. @@ -338,7 +338,7 @@ static unsigned long *cell_iommu_alloc_ptab(struct cbe_iommu *iommu, start_seg = base >> IO_SEGMENT_SHIFT; segments = size >> IO_SEGMENT_SHIFT; pages_per_segment = 1ull << IO_PAGENO_BITS(page_shift); - /* PTEs for each segment must start on a 4K bounday */ + /* PTEs for each segment must start on a 4K boundary */ pages_per_segment = max(pages_per_segment, (1 << 12) / sizeof(unsigned long)); diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index 36cff28d0293..d3543e68efe8 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -255,13 +255,10 @@ static void __init cell_setup_arch(void) static int __init cell_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "IBM,CBEA") && - !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0")) + if (!of_machine_is_compatible("IBM,CBEA") && + !of_machine_is_compatible("IBM,CPBW-1.0")) return 0; - hpte_init_native(); pm_power_off = rtas_power_off; return 1; diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c index 54ee5743cb72..d06dcac66fcb 100644 --- a/arch/powerpc/platforms/cell/spider-pic.c +++ b/arch/powerpc/platforms/cell/spider-pic.c @@ -217,7 +217,7 @@ static void spider_irq_cascade(struct irq_desc *desc) chip->irq_eoi(&desc->irq_data); } -/* For hooking up the cascace we have a problem. Our device-tree is +/* For hooking up the cascade we have a problem. Our device-tree is * crap and we don't know on which BE iic interrupt we are hooked on at * least not the "standard" way. We can reconstitute it based on two * informations though: which BE node we are connected to and whether diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c index 3cbe38fad609..bb4a8e07c229 100644 --- a/arch/powerpc/platforms/cell/spu_base.c +++ b/arch/powerpc/platforms/cell/spu_base.c @@ -69,7 +69,7 @@ static DEFINE_SPINLOCK(spu_lock); * spu_full_list_lock and spu_full_list_mutex held, while iterating * through it requires either of these locks. * - * In addition spu_full_list_lock protects all assignmens to + * In addition spu_full_list_lock protects all assignments to * spu->mm. */ static LIST_HEAD(spu_full_list); @@ -253,7 +253,7 @@ static inline int __slb_present(struct copro_slb *slbs, int nr_slbs, * Setup the SPU kernel SLBs, in preparation for a context save/restore. We * need to map both the context save area, and the save/restore code. * - * Because the lscsa and code may cross segment boundaires, we check to see + * Because the lscsa and code may cross segment boundaries, we check to see * if mappings are required for the start and end of each range. We currently * assume that the mappings are smaller that one segment - if not, something * is seriously wrong. diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c index c3327f3d8cf7..21b4bfb97200 100644 --- a/arch/powerpc/platforms/cell/spu_manage.c +++ b/arch/powerpc/platforms/cell/spu_manage.c @@ -535,8 +535,7 @@ static int __init init_affinity(void) if (of_has_vicinity()) { init_affinity_fw(); } else { - long root = of_get_flat_dt_root(); - if (of_flat_dt_is_compatible(root, "IBM,CPBW-1.0")) + if (of_machine_is_compatible("IBM,CPBW-1.0")) init_affinity_qs20_harcoded(); else printk("No affinity configuration found\n"); diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index 2936a0044c04..06254467e4dd 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -866,7 +866,7 @@ void spufs_wbox_callback(struct spu *spu) * - end of the mapped area * * If the file is opened without O_NONBLOCK, we wait here until - * space is availabyl, but return when we have been able to + * space is available, but return when we have been able to * write something. */ static ssize_t spufs_wbox_write(struct file *file, const char __user *buf, diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c index 9f79004e6d6f..cfacbee24d7b 100644 --- a/arch/powerpc/platforms/cell/spufs/run.c +++ b/arch/powerpc/platforms/cell/spufs/run.c @@ -435,7 +435,7 @@ long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *event) /* Note: we don't need to force_sig SIGTRAP on single-step * since we have TIF_SINGLESTEP set, thus the kernel will do - * it upon return from the syscall anyawy + * it upon return from the syscall anyway. */ if (unlikely(status & SPU_STATUS_SINGLE_STEP)) ret = -ERESTARTSYS; diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 998f632e7cce..460f5f31d5cb 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -622,7 +622,7 @@ static struct spu *spu_get_idle(struct spu_context *ctx) /** * find_victim - find a lower priority context to preempt - * @ctx: canidate context for running + * @ctx: candidate context for running * * Returns the freed physical spu to run the new context on. */ diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c index 987d1b8d68e3..bfb300633dfe 100644 --- a/arch/powerpc/platforms/chrp/setup.c +++ b/arch/powerpc/platforms/chrp/setup.c @@ -239,7 +239,7 @@ out: of_node_put(np); } -static void briq_restart(char *cmd) +static void __noreturn briq_restart(char *cmd) { local_irq_disable(); if (briq_SPOR) @@ -253,7 +253,7 @@ static void briq_restart(char *cmd) * But unfortunately, the firmware does not connect /chosen/{stdin,stdout} * the the built-in serial node. Instead, a /failsafe node is created. */ -static __init void chrp_init_early(void) +static __init void chrp_init(void) { struct device_node *node; const char *property; @@ -587,6 +587,8 @@ static int __init chrp_probe(void) pm_power_off = rtas_power_off; + chrp_init(); + return 1; } @@ -595,7 +597,6 @@ define_machine(chrp) { .probe = chrp_probe, .setup_arch = chrp_setup_arch, .init = chrp_init2, - .init_early = chrp_init_early, .show_cpuinfo = chrp_show_cpuinfo, .init_IRQ = chrp_init_IRQ, .restart = rtas_restart, diff --git a/arch/powerpc/platforms/embedded6xx/c2k.c b/arch/powerpc/platforms/embedded6xx/c2k.c index ebd3963fdf91..d19e4e759597 100644 --- a/arch/powerpc/platforms/embedded6xx/c2k.c +++ b/arch/powerpc/platforms/embedded6xx/c2k.c @@ -99,7 +99,7 @@ static void c2k_reset_board(void) out_le32(mv64x60_gpp_reg_base + MV64x60_GPP_VALUE_SET, 0x00080004); } -static void c2k_restart(char *cmd) +static void __noreturn c2k_restart(char *cmd) { c2k_reset_board(); msleep(100); @@ -123,15 +123,16 @@ void c2k_show_cpuinfo(struct seq_file *m) */ static int __init c2k_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "GEFanuc,C2K")) + if (!of_machine_is_compatible("GEFanuc,C2K")) return 0; printk(KERN_INFO "Detected a GEFanuc C2K board\n"); _set_L2CR(0); _set_L2CR(L2CR_L2E | L2CR_L2PE | L2CR_L2I); + + mv64x60_init_early(); + return 1; } @@ -139,7 +140,6 @@ define_machine(c2k) { .name = "C2K", .probe = c2k_probe, .setup_arch = c2k_setup_arch, - .init_early = mv64x60_init_early, .show_cpuinfo = c2k_show_cpuinfo, .init_IRQ = mv64x60_init_irq, .get_irq = mv64x60_get_irq, diff --git a/arch/powerpc/platforms/embedded6xx/gamecube.c b/arch/powerpc/platforms/embedded6xx/gamecube.c index fe0ed6ee285e..36789cec957c 100644 --- a/arch/powerpc/platforms/embedded6xx/gamecube.c +++ b/arch/powerpc/platforms/embedded6xx/gamecube.c @@ -29,14 +29,14 @@ #include "usbgecko_udbg.h" -static void gamecube_spin(void) +static void __noreturn gamecube_spin(void) { /* spin until power button pressed */ for (;;) cpu_relax(); } -static void gamecube_restart(char *cmd) +static void __noreturn gamecube_restart(char *cmd) { local_irq_disable(); flipper_platform_reset(); @@ -49,26 +49,20 @@ static void gamecube_power_off(void) gamecube_spin(); } -static void gamecube_halt(void) +static void __noreturn gamecube_halt(void) { gamecube_restart(NULL); } -static void __init gamecube_init_early(void) -{ - ug_udbg_init(); -} - static int __init gamecube_probe(void) { - unsigned long dt_root; - - dt_root = of_get_flat_dt_root(); - if (!of_flat_dt_is_compatible(dt_root, "nintendo,gamecube")) + if (!of_machine_is_compatible("nintendo,gamecube")) return 0; pm_power_off = gamecube_power_off; + ug_udbg_init(); + return 1; } @@ -80,7 +74,6 @@ static void gamecube_shutdown(void) define_machine(gamecube) { .name = "gamecube", .probe = gamecube_probe, - .init_early = gamecube_init_early, .restart = gamecube_restart, .halt = gamecube_halt, .init_IRQ = flipper_pic_probe, diff --git a/arch/powerpc/platforms/embedded6xx/holly.c b/arch/powerpc/platforms/embedded6xx/holly.c index 8c305c7c8977..dafba1057a47 100644 --- a/arch/powerpc/platforms/embedded6xx/holly.c +++ b/arch/powerpc/platforms/embedded6xx/holly.c @@ -193,7 +193,7 @@ void holly_show_cpuinfo(struct seq_file *m) seq_printf(m, "machine\t\t: PPC750 GX/CL\n"); } -void holly_restart(char *cmd) +void __noreturn holly_restart(char *cmd) { __be32 __iomem *ocn_bar1 = NULL; unsigned long bar; @@ -250,9 +250,7 @@ void holly_halt(void) */ static int __init holly_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "ibm,holly")) + if (!of_machine_is_compatible("ibm,holly")) return 0; return 1; } diff --git a/arch/powerpc/platforms/embedded6xx/linkstation.c b/arch/powerpc/platforms/embedded6xx/linkstation.c index 540eeb58d3f0..f29cf29b11f8 100644 --- a/arch/powerpc/platforms/embedded6xx/linkstation.c +++ b/arch/powerpc/platforms/embedded6xx/linkstation.c @@ -100,7 +100,7 @@ static void __init linkstation_init_IRQ(void) extern void avr_uart_configure(void); extern void avr_uart_send(const char); -static void linkstation_restart(char *cmd) +static void __noreturn linkstation_restart(char *cmd) { local_irq_disable(); @@ -113,7 +113,7 @@ static void linkstation_restart(char *cmd) avr_uart_send('G'); /* "kick" */ } -static void linkstation_power_off(void) +static void __noreturn linkstation_power_off(void) { local_irq_disable(); @@ -127,7 +127,7 @@ static void linkstation_power_off(void) /* NOTREACHED */ } -static void linkstation_halt(void) +static void __noreturn linkstation_halt(void) { linkstation_power_off(); /* NOTREACHED */ @@ -141,11 +141,7 @@ static void linkstation_show_cpuinfo(struct seq_file *m) static int __init linkstation_probe(void) { - unsigned long root; - - root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "linkstation")) + if (!of_machine_is_compatible("linkstation")) return 0; pm_power_off = linkstation_power_off; diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c index df4ad95f183e..80804f9916ee 100644 --- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c +++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c @@ -146,7 +146,7 @@ void mpc7448_hpc2_show_cpuinfo(struct seq_file *m) seq_printf(m, "vendor\t\t: Freescale Semiconductor\n"); } -void mpc7448_hpc2_restart(char *cmd) +static void __noreturn mpc7448_hpc2_restart(char *cmd) { local_irq_disable(); @@ -161,9 +161,7 @@ void mpc7448_hpc2_restart(char *cmd) */ static int __init mpc7448_hpc2_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "mpc74xx")) + if (!of_machine_is_compatible("mpc74xx")) return 0; return 1; } diff --git a/arch/powerpc/platforms/embedded6xx/mvme5100.c b/arch/powerpc/platforms/embedded6xx/mvme5100.c index 8f65aa3747f5..ed7321d6772e 100644 --- a/arch/powerpc/platforms/embedded6xx/mvme5100.c +++ b/arch/powerpc/platforms/embedded6xx/mvme5100.c @@ -177,7 +177,7 @@ static void mvme5100_show_cpuinfo(struct seq_file *m) seq_puts(m, "Machine\t\t: MVME5100\n"); } -static void mvme5100_restart(char *cmd) +static void __noreturn mvme5100_restart(char *cmd) { local_irq_disable(); @@ -194,9 +194,7 @@ static void mvme5100_restart(char *cmd) */ static int __init mvme5100_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "MVME5100"); + return of_machine_is_compatible("MVME5100"); } static int __init probe_of_platform_devices(void) diff --git a/arch/powerpc/platforms/embedded6xx/storcenter.c b/arch/powerpc/platforms/embedded6xx/storcenter.c index d572833ebd00..471a50bcd074 100644 --- a/arch/powerpc/platforms/embedded6xx/storcenter.c +++ b/arch/powerpc/platforms/embedded6xx/storcenter.c @@ -96,7 +96,7 @@ static void __init storcenter_init_IRQ(void) mpic_init(mpic); } -static void storcenter_restart(char *cmd) +static void __noreturn storcenter_restart(char *cmd) { local_irq_disable(); @@ -109,9 +109,7 @@ static void storcenter_restart(char *cmd) static int __init storcenter_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - return of_flat_dt_is_compatible(root, "iomega,storcenter"); + return of_machine_is_compatible("iomega,storcenter"); } define_machine(storcenter){ diff --git a/arch/powerpc/platforms/embedded6xx/wii.c b/arch/powerpc/platforms/embedded6xx/wii.c index 352592d3e44e..3fd683e40bc9 100644 --- a/arch/powerpc/platforms/embedded6xx/wii.c +++ b/arch/powerpc/platforms/embedded6xx/wii.c @@ -112,7 +112,7 @@ unsigned long __init wii_mmu_mapin_mem2(unsigned long top) return delta + bl; } -static void wii_spin(void) +static void __noreturn wii_spin(void) { local_irq_disable(); for (;;) @@ -160,7 +160,7 @@ static void __init wii_setup_arch(void) } } -static void wii_restart(char *cmd) +static void __noreturn wii_restart(char *cmd) { local_irq_disable(); @@ -185,18 +185,13 @@ static void wii_power_off(void) wii_spin(); } -static void wii_halt(void) +static void __noreturn wii_halt(void) { if (ppc_md.restart) ppc_md.restart(NULL); wii_spin(); } -static void __init wii_init_early(void) -{ - ug_udbg_init(); -} - static void __init wii_pic_probe(void) { flipper_pic_probe(); @@ -205,14 +200,13 @@ static void __init wii_pic_probe(void) static int __init wii_probe(void) { - unsigned long dt_root; - - dt_root = of_get_flat_dt_root(); - if (!of_flat_dt_is_compatible(dt_root, "nintendo,wii")) + if (!of_machine_is_compatible("nintendo,wii")) return 0; pm_power_off = wii_power_off; + ug_udbg_init(); + return 1; } @@ -225,7 +219,6 @@ static void wii_shutdown(void) define_machine(wii) { .name = "wii", .probe = wii_probe, - .init_early = wii_init_early, .setup_arch = wii_setup_arch, .restart = wii_restart, .halt = wii_halt, diff --git a/arch/powerpc/platforms/maple/pci.c b/arch/powerpc/platforms/maple/pci.c index a923230e575b..a2f89e6326ce 100644 --- a/arch/powerpc/platforms/maple/pci.c +++ b/arch/powerpc/platforms/maple/pci.c @@ -568,6 +568,26 @@ void maple_pci_irq_fixup(struct pci_dev *dev) DBG(" <- maple_pci_irq_fixup\n"); } +static int maple_pci_root_bridge_prepare(struct pci_host_bridge *bridge) +{ + struct pci_controller *hose = pci_bus_to_host(bridge->bus); + struct device_node *np, *child; + + if (hose != u3_agp) + return 0; + + /* Fixup the PCI<->OF mapping for U3 AGP due to bus renumbering. We + * assume there is no P2P bridge on the AGP bus, which should be a + * safe assumptions hopefully. + */ + np = hose->dn; + PCI_DN(np)->busno = 0xf0; + for_each_child_of_node(np, child) + PCI_DN(child)->busno = 0xf0; + + return 0; +} + void __init maple_pci_init(void) { struct device_node *np, *root; @@ -605,19 +625,7 @@ void __init maple_pci_init(void) if (ht && maple_add_bridge(ht) != 0) of_node_put(ht); - /* Setup the linkage between OF nodes and PHBs */ - pci_devs_phb_init(); - - /* Fixup the PCI<->OF mapping for U3 AGP due to bus renumbering. We - * assume there is no P2P bridge on the AGP bus, which should be a - * safe assumptions hopefully. - */ - if (u3_agp) { - struct device_node *np = u3_agp->dn; - PCI_DN(np)->busno = 0xf0; - for (np = np->child; np; np = np->sibling) - PCI_DN(np)->busno = 0xf0; - } + ppc_md.pcibios_root_bridge_prepare = maple_pci_root_bridge_prepare; /* Tell pci.c to not change any resource allocations. */ pci_add_flags(PCI_PROBE_ONLY); diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c index a837188544c8..3c30c7a4534d 100644 --- a/arch/powerpc/platforms/maple/setup.c +++ b/arch/powerpc/platforms/maple/setup.c @@ -94,7 +94,7 @@ static unsigned long maple_find_nvram_base(void) return result; } -static void maple_restart(char *cmd) +static void __noreturn maple_restart(char *cmd) { unsigned int maple_nvram_base; const unsigned int *maple_nvram_offset, *maple_nvram_command; @@ -119,9 +119,10 @@ static void maple_restart(char *cmd) for (;;) ; fail: printk(KERN_EMERG "Maple: Manual Restart Required\n"); + for (;;) ; } -static void maple_power_off(void) +static void __noreturn maple_power_off(void) { unsigned int maple_nvram_base; const unsigned int *maple_nvram_offset, *maple_nvram_command; @@ -146,9 +147,10 @@ static void maple_power_off(void) for (;;) ; fail: printk(KERN_EMERG "Maple: Manual Power-Down Required\n"); + for (;;) ; } -static void maple_halt(void) +static void __noreturn maple_halt(void) { maple_power_off(); } @@ -196,18 +198,6 @@ void __init maple_setup_arch(void) mmio_nvram_init(); } -/* - * Early initialization. - */ -static void __init maple_init_early(void) -{ - DBG(" -> maple_init_early\n"); - - iommu_init_early_dart(&maple_pci_controller_ops); - - DBG(" <- maple_init_early\n"); -} - /* * This is almost identical to pSeries and CHRP. We need to make that * code generic at one point, with appropriate bits in the device-tree to @@ -298,22 +288,14 @@ static void __init maple_progress(char *s, unsigned short hex) */ static int __init maple_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "Momentum,Maple") && - !of_flat_dt_is_compatible(root, "Momentum,Apache")) + if (!of_machine_is_compatible("Momentum,Maple") && + !of_machine_is_compatible("Momentum,Apache")) return 0; - /* - * On U3, the DART (iommu) must be allocated now since it - * has an impact on htab_initialize (due to the large page it - * occupies having to be broken up so the DART itself is not - * part of the cacheable linar mapping - */ - alloc_dart_table(); - hpte_init_native(); pm_power_off = maple_power_off; + iommu_init_early_dart(&maple_pci_controller_ops); + return 1; } @@ -321,7 +303,6 @@ define_machine(maple) { .name = "Maple", .probe = maple_probe, .setup_arch = maple_setup_arch, - .init_early = maple_init_early, .init_IRQ = maple_init_IRQ, .pci_irq_fixup = maple_pci_irq_fixup, .pci_get_legacy_ide_irq = maple_pci_get_legacy_ide_irq, diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c index c929644e74a6..43dd3fb514e0 100644 --- a/arch/powerpc/platforms/pasemi/iommu.c +++ b/arch/powerpc/platforms/pasemi/iommu.c @@ -202,6 +202,11 @@ int __init iob_init(struct device_node *dn) pr_debug(" -> %s\n", __func__); + /* For 2G space, 8x64 pages (2^21 bytes) is max total l2 size */ + iob_l2_base = (u32 *)__va(memblock_alloc_base(1UL<<21, 1UL<<21, 0x80000000)); + + printk(KERN_INFO "IOBMAP L2 allocated at: %p\n", iob_l2_base); + /* Allocate a spare page to map all invalid IOTLB pages. */ tmp = memblock_alloc(IOBMAP_PAGE_SIZE, IOBMAP_PAGE_SIZE); if (!tmp) @@ -260,13 +265,3 @@ void __init iommu_init_early_pasemi(void) set_pci_dma_ops(&dma_iommu_ops); } -void __init alloc_iobmap_l2(void) -{ -#ifndef CONFIG_PPC_PASEMI_IOMMU - return; -#endif - /* For 2G space, 8x64 pages (2^21 bytes) is max total l2 size */ - iob_l2_base = (u32 *)__va(memblock_alloc_base(1UL<<21, 1UL<<21, 0x80000000)); - - printk(KERN_INFO "IOBMAP L2 allocated at: %p\n", iob_l2_base); -} diff --git a/arch/powerpc/platforms/pasemi/pasemi.h b/arch/powerpc/platforms/pasemi/pasemi.h index 11f230a48227..74cbcb357612 100644 --- a/arch/powerpc/platforms/pasemi/pasemi.h +++ b/arch/powerpc/platforms/pasemi/pasemi.h @@ -8,7 +8,6 @@ extern void pas_pci_dma_dev_setup(struct pci_dev *dev); extern void __iomem *pasemi_pci_getcfgaddr(struct pci_dev *dev, int offset); -extern void __init alloc_iobmap_l2(void); extern void __init pasemi_map_registers(void); /* Power savings modes, implemented in asm */ diff --git a/arch/powerpc/platforms/pasemi/pci.c b/arch/powerpc/platforms/pasemi/pci.c index f3a68a0fef23..10c4e8fc6ea9 100644 --- a/arch/powerpc/platforms/pasemi/pci.c +++ b/arch/powerpc/platforms/pasemi/pci.c @@ -229,9 +229,6 @@ void __init pas_pci_init(void) of_node_get(np); of_node_put(root); - - /* Setup the linkage between OF nodes and PHBs */ - pci_devs_phb_init(); } void __iomem *pasemi_pci_getcfgaddr(struct pci_dev *dev, int offset) diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c index d71b2c7e8403..e86c1bd08f1f 100644 --- a/arch/powerpc/platforms/pasemi/setup.c +++ b/arch/powerpc/platforms/pasemi/setup.c @@ -62,7 +62,7 @@ static int num_mce_regs; static int nmi_virq = NO_IRQ; -static void pas_restart(char *cmd) +static void __noreturn pas_restart(char *cmd) { /* Need to put others cpu in hold loop so they're not sleeping */ smp_send_stop(); @@ -339,11 +339,6 @@ out: return !!(srr1 & 0x2); } -static void __init pas_init_early(void) -{ - iommu_init_early_pasemi(); -} - #ifdef CONFIG_PCMCIA static int pcmcia_notify(struct notifier_block *nb, unsigned long action, void *data) @@ -420,15 +415,11 @@ machine_device_initcall(pasemi, pasemi_publish_devices); */ static int __init pas_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "PA6T-1682M") && - !of_flat_dt_is_compatible(root, "pasemi,pwrficient")) + if (!of_machine_is_compatible("PA6T-1682M") && + !of_machine_is_compatible("pasemi,pwrficient")) return 0; - hpte_init_native(); - - alloc_iobmap_l2(); + iommu_init_early_pasemi(); return 1; } @@ -437,7 +428,6 @@ define_machine(pasemi) { .name = "PA Semi PWRficient", .probe = pas_probe, .setup_arch = pas_setup_arch, - .init_early = pas_init_early, .init_IRQ = pas_init_IRQ, .get_irq = mpic_get_irq, .restart = pas_restart, diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c index 7553b6a77c64..6d6f277477aa 100644 --- a/arch/powerpc/platforms/powermac/low_i2c.c +++ b/arch/powerpc/platforms/powermac/low_i2c.c @@ -15,7 +15,7 @@ * This file thus provides a simple low level unified i2c interface for * powermac that covers the various types of i2c busses used in Apple machines. * For now, keywest, PMU and SMU, though we could add Cuda, or other bit - * banging busses found on older chipstes in earlier machines if we ever need + * banging busses found on older chipsets in earlier machines if we ever need * one of them. * * The drivers in this file are synchronous/blocking. In addition, the diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c index 59ab16fa600f..6e06c3be2e9a 100644 --- a/arch/powerpc/platforms/powermac/pci.c +++ b/arch/powerpc/platforms/powermac/pci.c @@ -878,6 +878,29 @@ void pmac_pci_irq_fixup(struct pci_dev *dev) #endif /* CONFIG_PPC32 */ } +#ifdef CONFIG_PPC64 +static int pmac_pci_root_bridge_prepare(struct pci_host_bridge *bridge) +{ + struct pci_controller *hose = pci_bus_to_host(bridge->bus); + struct device_node *np, *child; + + if (hose != u3_agp) + return 0; + + /* Fixup the PCI<->OF mapping for U3 AGP due to bus renumbering. We + * assume there is no P2P bridge on the AGP bus, which should be a + * safe assumptions for now. We should do something better in the + * future though + */ + np = hose->dn; + PCI_DN(np)->busno = 0xf0; + for_each_child_of_node(np, child) + PCI_DN(child)->busno = 0xf0; + + return 0; +} +#endif /* CONFIG_PPC64 */ + void __init pmac_pci_init(void) { struct device_node *np, *root; @@ -914,20 +937,7 @@ void __init pmac_pci_init(void) if (ht && pmac_add_bridge(ht) != 0) of_node_put(ht); - /* Setup the linkage between OF nodes and PHBs */ - pci_devs_phb_init(); - - /* Fixup the PCI<->OF mapping for U3 AGP due to bus renumbering. We - * assume there is no P2P bridge on the AGP bus, which should be a - * safe assumptions for now. We should do something better in the - * future though - */ - if (u3_agp) { - struct device_node *np = u3_agp->dn; - PCI_DN(np)->busno = 0xf0; - for (np = np->child; np; np = np->sibling) - PCI_DN(np)->busno = 0xf0; - } + ppc_md.pcibios_root_bridge_prepare = pmac_pci_root_bridge_prepare; /* pmac_check_ht_link(); */ #else /* CONFIG_PPC64 */ diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 8dd78f4e1af4..3de4a7c85140 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -52,7 +52,6 @@ #include <linux/suspend.h> #include <linux/of_device.h> #include <linux/of_platform.h> -#include <linux/memblock.h> #include <asm/reg.h> #include <asm/sections.h> @@ -97,11 +96,6 @@ int sccdbg; sys_ctrler_t sys_ctrler = SYS_CTRLER_UNKNOWN; EXPORT_SYMBOL(sys_ctrler); -#ifdef CONFIG_PMAC_SMU -unsigned long smu_cmdbuf_abs; -EXPORT_SYMBOL(smu_cmdbuf_abs); -#endif - static void pmac_show_cpuinfo(struct seq_file *m) { struct device_node *np; @@ -325,7 +319,6 @@ static void __init pmac_setup_arch(void) defined(CONFIG_PPC64) pmac_nvram_init(); #endif - #ifdef CONFIG_PPC32 #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start) @@ -383,7 +376,7 @@ void __init_refok note_bootable_part(dev_t dev, int part, int goodness) } #ifdef CONFIG_ADB_CUDA -static void cuda_restart(void) +static void __noreturn cuda_restart(void) { struct adb_request req; @@ -392,7 +385,7 @@ static void cuda_restart(void) cuda_poll(); } -static void cuda_shutdown(void) +static void __noreturn cuda_shutdown(void) { struct adb_request req; @@ -416,7 +409,7 @@ static void cuda_shutdown(void) #define smu_shutdown() #endif -static void pmac_restart(char *cmd) +static void __noreturn pmac_restart(char *cmd) { switch (sys_ctrler) { case SYS_CTRLER_CUDA: @@ -430,9 +423,10 @@ static void pmac_restart(char *cmd) break; default: ; } + while (1) ; } -static void pmac_power_off(void) +static void __noreturn pmac_power_off(void) { switch (sys_ctrler) { case SYS_CTRLER_CUDA: @@ -446,9 +440,10 @@ static void pmac_power_off(void) break; default: ; } + while (1) ; } -static void +static void __noreturn pmac_halt(void) { pmac_power_off(); @@ -457,7 +452,7 @@ pmac_halt(void) /* * Early initialization. */ -static void __init pmac_init_early(void) +static void __init pmac_init(void) { /* Enable early btext debug if requested */ if (strstr(boot_command_line, "btextdbg")) { @@ -489,9 +484,6 @@ static int __init pmac_declare_of_platform_devices(void) { struct device_node *np; - if (machine_is(chrp)) - return -1; - np = of_find_node_by_name(NULL, "valkyrie"); if (np) { of_platform_device_create(np, "valkyrie", NULL); @@ -598,24 +590,10 @@ console_initcall(check_pmac_serial_console); */ static int __init pmac_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "Power Macintosh") && - !of_flat_dt_is_compatible(root, "MacRISC")) + if (!of_machine_is_compatible("Power Macintosh") && + !of_machine_is_compatible("MacRISC")) return 0; -#ifdef CONFIG_PPC64 - /* - * On U3, the DART (iommu) must be allocated now since it - * has an impact on htab_initialize (due to the large page it - * occupies having to be broken up so the DART itself is not - * part of the cacheable linar mapping - */ - alloc_dart_table(); - - hpte_init_native(); -#endif - #ifdef CONFIG_PPC32 /* isa_io_base gets set in pmac_pci_init */ ISA_DMA_THRESHOLD = ~0L; @@ -623,17 +601,10 @@ static int __init pmac_probe(void) DMA_MODE_WRITE = 2; #endif /* CONFIG_PPC32 */ -#ifdef CONFIG_PMAC_SMU - /* - * SMU based G5s need some memory below 2Gb, at least the current - * driver needs that. We have to allocate it now. We allocate 4k - * (1 small page) for now. - */ - smu_cmdbuf_abs = memblock_alloc_base(4096, 4096, 0x80000000UL); -#endif /* CONFIG_PMAC_SMU */ - pm_power_off = pmac_power_off; + pmac_init(); + return 1; } @@ -641,7 +612,6 @@ define_machine(powermac) { .name = "PowerMac", .probe = pmac_probe, .setup_arch = pmac_setup_arch, - .init_early = pmac_init_early, .show_cpuinfo = pmac_show_cpuinfo, .init_IRQ = pmac_pic_init, .get_irq = NULL, /* changed later */ diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index 28a147ca32ba..834868b9fdc9 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -857,9 +857,8 @@ static int smp_core99_cpu_notify(struct notifier_block *self, { int rc; - switch(action) { + switch(action & ~CPU_TASKS_FROZEN) { case CPU_UP_PREPARE: - case CPU_UP_PREPARE_FROZEN: /* Open i2c bus if it was used for tb sync */ if (pmac_tb_clock_chip_host) { rc = pmac_i2c_open(pmac_tb_clock_chip_host, 1); diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile index cd9711e72df6..b5d98cb3f482 100644 --- a/arch/powerpc/platforms/powernv/Makefile +++ b/arch/powerpc/platforms/powernv/Makefile @@ -6,6 +6,7 @@ obj-y += opal-kmsg.o obj-$(CONFIG_SMP) += smp.o subcore.o subcore-asm.o obj-$(CONFIG_PCI) += pci.o pci-ioda.o npu-dma.o +obj-$(CONFIG_CXL_BASE) += pci-cxl.o obj-$(CONFIG_EEH) += eeh-powernv.o obj-$(CONFIG_PPC_SCOM) += opal-xscom.o obj-$(CONFIG_MEMORY_FAILURE) += opal-memory-errors.o diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c index 9226df11bf39..86544ea85dc3 100644 --- a/arch/powerpc/platforms/powernv/eeh-powernv.c +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c @@ -36,6 +36,7 @@ #include <asm/msi_bitmap.h> #include <asm/opal.h> #include <asm/ppc-pci.h> +#include <asm/pnv-pci.h> #include "powernv.h" #include "pci.h" @@ -717,12 +718,12 @@ static int pnv_eeh_get_state(struct eeh_pe *pe, int *delay) return ret; } -static s64 pnv_eeh_phb_poll(struct pnv_phb *phb) +static s64 pnv_eeh_poll(unsigned long id) { s64 rc = OPAL_HARDWARE; while (1) { - rc = opal_pci_poll(phb->opal_id); + rc = opal_pci_poll(id); if (rc <= 0) break; @@ -762,7 +763,7 @@ int pnv_eeh_phb_reset(struct pci_controller *hose, int option) * reset followed by hot reset on root bus. So we also * need the PCI bus settlement delay. */ - rc = pnv_eeh_phb_poll(phb); + rc = pnv_eeh_poll(phb->opal_id); if (option == EEH_RESET_DEACTIVATE) { if (system_state < SYSTEM_RUNNING) udelay(1000 * EEH_PE_RST_SETTLE_TIME); @@ -805,7 +806,7 @@ static int pnv_eeh_root_reset(struct pci_controller *hose, int option) goto out; /* Poll state of the PHB until the request is done */ - rc = pnv_eeh_phb_poll(phb); + rc = pnv_eeh_poll(phb->opal_id); if (option == EEH_RESET_DEACTIVATE) msleep(EEH_PE_RST_SETTLE_TIME); out: @@ -815,7 +816,7 @@ out: return 0; } -static int pnv_eeh_bridge_reset(struct pci_dev *dev, int option) +static int __pnv_eeh_bridge_reset(struct pci_dev *dev, int option) { struct pci_dn *pdn = pci_get_pdn_by_devfn(dev->bus, dev->devfn); struct eeh_dev *edev = pdn_to_eeh_dev(pdn); @@ -866,6 +867,44 @@ static int pnv_eeh_bridge_reset(struct pci_dev *dev, int option) return 0; } +static int pnv_eeh_bridge_reset(struct pci_dev *pdev, int option) +{ + struct pci_controller *hose = pci_bus_to_host(pdev->bus); + struct pnv_phb *phb = hose->private_data; + struct device_node *dn = pci_device_to_OF_node(pdev); + uint64_t id = PCI_SLOT_ID(phb->opal_id, + (pdev->bus->number << 8) | pdev->devfn); + uint8_t scope; + int64_t rc; + + /* Hot reset to the bus if firmware cannot handle */ + if (!dn || !of_get_property(dn, "ibm,reset-by-firmware", NULL)) + return __pnv_eeh_bridge_reset(pdev, option); + + switch (option) { + case EEH_RESET_FUNDAMENTAL: + scope = OPAL_RESET_PCI_FUNDAMENTAL; + break; + case EEH_RESET_HOT: + scope = OPAL_RESET_PCI_HOT; + break; + case EEH_RESET_DEACTIVATE: + return 0; + default: + dev_dbg(&pdev->dev, "%s: Unsupported reset %d\n", + __func__, option); + return -EINVAL; + } + + rc = opal_pci_reset(id, scope, OPAL_ASSERT_RESET); + if (rc <= OPAL_SUCCESS) + goto out; + + rc = pnv_eeh_poll(id); +out: + return (rc == OPAL_SUCCESS) ? 0 : -EIO; +} + void pnv_pci_reset_secondary_bus(struct pci_dev *dev) { struct pci_controller *hose; diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c index fcc8b6861b63..479c25601612 100644 --- a/arch/powerpc/platforms/powernv/idle.c +++ b/arch/powerpc/platforms/powernv/idle.c @@ -27,9 +27,12 @@ #include "powernv.h" #include "subcore.h" +/* Power ISA 3.0 allows for stop states 0x0 - 0xF */ +#define MAX_STOP_STATE 0xF + static u32 supported_cpuidle_states; -int pnv_save_sprs_for_winkle(void) +static int pnv_save_sprs_for_deep_states(void) { int cpu; int rc; @@ -50,15 +53,19 @@ int pnv_save_sprs_for_winkle(void) uint64_t pir = get_hard_smp_processor_id(cpu); uint64_t hsprg0_val = (uint64_t)&paca[cpu]; - /* - * HSPRG0 is used to store the cpu's pointer to paca. Hence last - * 3 bits are guaranteed to be 0. Program slw to restore HSPRG0 - * with 63rd bit set, so that when a thread wakes up at 0x100 we - * can use this bit to distinguish between fastsleep and - * deep winkle. - */ - hsprg0_val |= 1; - + if (!cpu_has_feature(CPU_FTR_ARCH_300)) { + /* + * HSPRG0 is used to store the cpu's pointer to paca. + * Hence last 3 bits are guaranteed to be 0. Program + * slw to restore HSPRG0 with 63rd bit set, so that + * when a thread wakes up at 0x100 we can use this bit + * to distinguish between fastsleep and deep winkle. + * This is not necessary with stop/psscr since PLS + * field of psscr indicates which state we are waking + * up from. + */ + hsprg0_val |= 1; + } rc = opal_slw_set_reg(pir, SPRN_HSPRG0, hsprg0_val); if (rc != 0) return rc; @@ -130,8 +137,8 @@ static void pnv_alloc_idle_core_states(void) update_subcore_sibling_mask(); - if (supported_cpuidle_states & OPAL_PM_WINKLE_ENABLED) - pnv_save_sprs_for_winkle(); + if (supported_cpuidle_states & OPAL_PM_LOSE_FULL_CONTEXT) + pnv_save_sprs_for_deep_states(); } u32 pnv_get_supported_cpuidle_states(void) @@ -230,43 +237,162 @@ static DEVICE_ATTR(fastsleep_workaround_applyonce, 0600, show_fastsleep_workaround_applyonce, store_fastsleep_workaround_applyonce); -static int __init pnv_init_idle_states(void) + +/* + * Used for ppc_md.power_save which needs a function with no parameters + */ +static void power9_idle(void) { - struct device_node *power_mgt; - int dt_idle_states; - u32 *flags; - int i; + /* Requesting stop state 0 */ + power9_idle_stop(0); +} +/* + * First deep stop state. Used to figure out when to save/restore + * hypervisor context. + */ +u64 pnv_first_deep_stop_state = MAX_STOP_STATE; - supported_cpuidle_states = 0; +/* + * Deepest stop idle state. Used when a cpu is offlined + */ +u64 pnv_deepest_stop_state; - if (cpuidle_disable != IDLE_NO_OVERRIDE) - goto out; +/* + * Power ISA 3.0 idle initialization. + * + * POWER ISA 3.0 defines a new SPR Processor stop Status and Control + * Register (PSSCR) to control idle behavior. + * + * PSSCR layout: + * ---------------------------------------------------------- + * | PLS | /// | SD | ESL | EC | PSLL | /// | TR | MTL | RL | + * ---------------------------------------------------------- + * 0 4 41 42 43 44 48 54 56 60 + * + * PSSCR key fields: + * Bits 0:3 - Power-Saving Level Status (PLS). This field indicates the + * lowest power-saving state the thread entered since stop instruction was + * last executed. + * + * Bit 41 - Status Disable(SD) + * 0 - Shows PLS entries + * 1 - PLS entries are all 0 + * + * Bit 42 - Enable State Loss + * 0 - No state is lost irrespective of other fields + * 1 - Allows state loss + * + * Bit 43 - Exit Criterion + * 0 - Exit from power-save mode on any interrupt + * 1 - Exit from power-save mode controlled by LPCR's PECE bits + * + * Bits 44:47 - Power-Saving Level Limit + * This limits the power-saving level that can be entered into. + * + * Bits 60:63 - Requested Level + * Used to specify which power-saving level must be entered on executing + * stop instruction + * + * @np: /ibm,opal/power-mgt device node + * @flags: cpu-idle-state-flags array + * @dt_idle_states: Number of idle state entries + * Returns 0 on success + */ +static int __init pnv_arch300_idle_init(struct device_node *np, u32 *flags, + int dt_idle_states) +{ + u64 *psscr_val = NULL; + int rc = 0, i; - if (!firmware_has_feature(FW_FEATURE_OPAL)) + psscr_val = kcalloc(dt_idle_states, sizeof(*psscr_val), + GFP_KERNEL); + if (!psscr_val) { + rc = -1; + goto out; + } + if (of_property_read_u64_array(np, + "ibm,cpu-idle-state-psscr", + psscr_val, dt_idle_states)) { + pr_warn("cpuidle-powernv: missing ibm,cpu-idle-states-psscr in DT\n"); + rc = -1; goto out; + } - power_mgt = of_find_node_by_path("/ibm,opal/power-mgt"); - if (!power_mgt) { + /* + * Set pnv_first_deep_stop_state and pnv_deepest_stop_state. + * pnv_first_deep_stop_state should be set to the first stop + * level to cause hypervisor state loss. + * pnv_deepest_stop_state should be set to the deepest stop + * stop state. + */ + pnv_first_deep_stop_state = MAX_STOP_STATE; + for (i = 0; i < dt_idle_states; i++) { + u64 psscr_rl = psscr_val[i] & PSSCR_RL_MASK; + + if ((flags[i] & OPAL_PM_LOSE_FULL_CONTEXT) && + (pnv_first_deep_stop_state > psscr_rl)) + pnv_first_deep_stop_state = psscr_rl; + + if (pnv_deepest_stop_state < psscr_rl) + pnv_deepest_stop_state = psscr_rl; + } + +out: + kfree(psscr_val); + return rc; +} + +/* + * Probe device tree for supported idle states + */ +static void __init pnv_probe_idle_states(void) +{ + struct device_node *np; + int dt_idle_states; + u32 *flags = NULL; + int i; + + np = of_find_node_by_path("/ibm,opal/power-mgt"); + if (!np) { pr_warn("opal: PowerMgmt Node not found\n"); goto out; } - dt_idle_states = of_property_count_u32_elems(power_mgt, + dt_idle_states = of_property_count_u32_elems(np, "ibm,cpu-idle-state-flags"); if (dt_idle_states < 0) { pr_warn("cpuidle-powernv: no idle states found in the DT\n"); goto out; } - flags = kzalloc(sizeof(*flags) * dt_idle_states, GFP_KERNEL); - if (of_property_read_u32_array(power_mgt, + flags = kcalloc(dt_idle_states, sizeof(*flags), GFP_KERNEL); + + if (of_property_read_u32_array(np, "ibm,cpu-idle-state-flags", flags, dt_idle_states)) { pr_warn("cpuidle-powernv: missing ibm,cpu-idle-state-flags in DT\n"); - goto out_free; + goto out; + } + + if (cpu_has_feature(CPU_FTR_ARCH_300)) { + if (pnv_arch300_idle_init(np, flags, dt_idle_states)) + goto out; } for (i = 0; i < dt_idle_states; i++) supported_cpuidle_states |= flags[i]; +out: + kfree(flags); +} +static int __init pnv_init_idle_states(void) +{ + + supported_cpuidle_states = 0; + + if (cpuidle_disable != IDLE_NO_OVERRIDE) + goto out; + + pnv_probe_idle_states(); + if (!(supported_cpuidle_states & OPAL_PM_SLEEP_ENABLED_ER1)) { patch_instruction( (unsigned int *)pnv_fastsleep_workaround_at_entry, @@ -285,8 +411,12 @@ static int __init pnv_init_idle_states(void) } pnv_alloc_idle_core_states(); -out_free: - kfree(flags); + + if (supported_cpuidle_states & OPAL_PM_NAP_ENABLED) + ppc_md.power_save = power7_idle; + else if (supported_cpuidle_states & OPAL_PM_STOP_INST_FAST) + ppc_md.power_save = power9_idle; + out: return 0; } diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c index 0459e100b4e7..4383a5ff82ba 100644 --- a/arch/powerpc/platforms/powernv/npu-dma.c +++ b/arch/powerpc/platforms/powernv/npu-dma.c @@ -180,7 +180,7 @@ long pnv_npu_set_window(struct pnv_ioda_pe *npe, int num, pe_err(npe, "Failed to configure TCE table, err %lld\n", rc); return rc; } - pnv_pci_ioda2_tce_invalidate_entire(phb, false); + pnv_pci_phb3_tce_invalidate_entire(phb, false); /* Add the table to the list so its TCE cache will get invalidated */ pnv_pci_link_table_and_group(phb->hose->node, num, @@ -204,7 +204,7 @@ long pnv_npu_unset_window(struct pnv_ioda_pe *npe, int num) pe_err(npe, "Unmapping failed, ret = %lld\n", rc); return rc; } - pnv_pci_ioda2_tce_invalidate_entire(phb, false); + pnv_pci_phb3_tce_invalidate_entire(phb, false); pnv_pci_unlink_table_and_group(npe->table_group.tables[num], &npe->table_group); @@ -270,7 +270,7 @@ static int pnv_npu_dma_set_bypass(struct pnv_ioda_pe *npe) 0 /* bypass base */, top); if (rc == OPAL_SUCCESS) - pnv_pci_ioda2_tce_invalidate_entire(phb, false); + pnv_pci_phb3_tce_invalidate_entire(phb, false); return rc; } @@ -334,7 +334,7 @@ void pnv_npu_take_ownership(struct pnv_ioda_pe *npe) pe_err(npe, "Failed to disable bypass, err %lld\n", rc); return; } - pnv_pci_ioda2_tce_invalidate_entire(npe->phb, false); + pnv_pci_phb3_tce_invalidate_entire(npe->phb, false); } struct pnv_ioda_pe *pnv_pci_npu_setup_iommu(struct pnv_ioda_pe *npe) diff --git a/arch/powerpc/platforms/powernv/opal-async.c b/arch/powerpc/platforms/powernv/opal-async.c index bdc8c0c71d15..83bebeec0fea 100644 --- a/arch/powerpc/platforms/powernv/opal-async.c +++ b/arch/powerpc/platforms/powernv/opal-async.c @@ -117,6 +117,11 @@ int opal_async_wait_response(uint64_t token, struct opal_msg *msg) return -EINVAL; } + /* Wakeup the poller before we wait for events to speed things + * up on platforms or simulators where the interrupts aren't + * functional. + */ + opal_wake_poller(); wait_event(opal_async_wait, test_bit(token, opal_async_complete_map)); memcpy(msg, &opal_async_responses[token], sizeof(*msg)); diff --git a/arch/powerpc/platforms/powernv/opal-memory-errors.c b/arch/powerpc/platforms/powernv/opal-memory-errors.c index 00a29432be39..4495f428b500 100644 --- a/arch/powerpc/platforms/powernv/opal-memory-errors.c +++ b/arch/powerpc/platforms/powernv/opal-memory-errors.c @@ -44,7 +44,7 @@ static void handle_memory_error_event(struct OpalMemoryErrorData *merr_evt) { uint64_t paddr_start, paddr_end; - pr_debug("%s: Retrived memory error event, type: 0x%x\n", + pr_debug("%s: Retrieved memory error event, type: 0x%x\n", __func__, merr_evt->type); switch (merr_evt->type) { case OPAL_MEM_ERR_TYPE_RESILIENCE: diff --git a/arch/powerpc/platforms/powernv/opal-sensor.c b/arch/powerpc/platforms/powernv/opal-sensor.c index a06059df9239..308efd170c27 100644 --- a/arch/powerpc/platforms/powernv/opal-sensor.c +++ b/arch/powerpc/platforms/powernv/opal-sensor.c @@ -55,7 +55,7 @@ int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data) goto out_token; } - ret = opal_error_code(be64_to_cpu(msg.params[1])); + ret = opal_error_code(opal_get_async_rc(msg)); *sensor_data = be32_to_cpu(data); break; diff --git a/arch/powerpc/platforms/powernv/opal-sysparam.c b/arch/powerpc/platforms/powernv/opal-sysparam.c index afe66c576a38..23fb6647dced 100644 --- a/arch/powerpc/platforms/powernv/opal-sysparam.c +++ b/arch/powerpc/platforms/powernv/opal-sysparam.c @@ -67,7 +67,7 @@ static ssize_t opal_get_sys_param(u32 param_id, u32 length, void *buffer) goto out_token; } - ret = opal_error_code(be64_to_cpu(msg.params[1])); + ret = opal_error_code(opal_get_async_rc(msg)); out_token: opal_async_release_token(token); @@ -103,7 +103,7 @@ static int opal_set_sys_param(u32 param_id, u32 length, void *buffer) goto out_token; } - ret = opal_error_code(be64_to_cpu(msg.params[1])); + ret = opal_error_code(opal_get_async_rc(msg)); out_token: opal_async_release_token(token); diff --git a/arch/powerpc/platforms/powernv/opal-tracepoints.c b/arch/powerpc/platforms/powernv/opal-tracepoints.c index e11273b2386d..1e496b780efd 100644 --- a/arch/powerpc/platforms/powernv/opal-tracepoints.c +++ b/arch/powerpc/platforms/powernv/opal-tracepoints.c @@ -1,6 +1,7 @@ #include <linux/percpu.h> #include <linux/jump_label.h> #include <asm/trace.h> +#include <asm/asm-prototypes.h> #ifdef HAVE_JUMP_LABEL struct static_key opal_tracepoint_key = STATIC_KEY_INIT; diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S index e45b88a5d7e0..cf928bba4d9a 100644 --- a/arch/powerpc/platforms/powernv/opal-wrappers.S +++ b/arch/powerpc/platforms/powernv/opal-wrappers.S @@ -59,7 +59,7 @@ END_FTR_SECTION(0, 1); \ #define OPAL_CALL(name, token) \ _GLOBAL_TOC(name); \ mflr r0; \ - std r0,16(r1); \ + std r0,PPC_LR_STKOFF(r1); \ li r0,token; \ OPAL_BRANCH(opal_tracepoint_entry) \ mfcr r12; \ @@ -92,7 +92,7 @@ opal_return: FIXUP_ENDIAN ld r2,PACATOC(r13); lwz r4,8(r1); - ld r5,16(r1); + ld r5,PPC_LR_STKOFF(r1); ld r6,PACASAVEDMSR(r13); mtspr SPRN_SRR0,r5; mtspr SPRN_SRR1,r6; @@ -157,43 +157,37 @@ opal_tracepoint_return: blr #endif -/* - * Make opal call in realmode. This is a generic function to be called - * from realmode. It handles endianness. - * - * r13 - paca pointer - * r1 - stack pointer - * r0 - opal token - */ -_GLOBAL(opal_call_realmode) - mflr r12 - std r12,PPC_LR_STKOFF(r1) - ld r2,PACATOC(r13) - /* Set opal return address */ - LOAD_REG_ADDR(r12,return_from_opal_call) - mtlr r12 - - mfmsr r12 -#ifdef __LITTLE_ENDIAN__ - /* Handle endian-ness */ - li r11,MSR_LE - andc r12,r12,r11 -#endif - mtspr SPRN_HSRR1,r12 - LOAD_REG_ADDR(r11,opal) - ld r12,8(r11) - ld r2,0(r11) - mtspr SPRN_HSRR0,r12 +#define OPAL_CALL_REAL(name, token) \ + _GLOBAL_TOC(name); \ + mflr r0; \ + std r0,PPC_LR_STKOFF(r1); \ + li r0,token; \ + mfcr r12; \ + stw r12,8(r1); \ + \ + /* Set opal return address */ \ + LOAD_REG_ADDR(r11, opal_return_realmode); \ + mtlr r11; \ + mfmsr r12; \ + li r11,MSR_LE; \ + andc r12,r12,r11; \ + mtspr SPRN_HSRR1,r12; \ + LOAD_REG_ADDR(r11,opal); \ + ld r12,8(r11); \ + ld r2,0(r11); \ + mtspr SPRN_HSRR0,r12; \ hrfid -return_from_opal_call: -#ifdef __LITTLE_ENDIAN__ +opal_return_realmode: FIXUP_ENDIAN -#endif + ld r2,PACATOC(r13); + lwz r11,8(r1); ld r12,PPC_LR_STKOFF(r1) + mtcr r11; mtlr r12 blr + OPAL_CALL(opal_invalid_call, OPAL_INVALID_CALL); OPAL_CALL(opal_console_write, OPAL_CONSOLE_WRITE); OPAL_CALL(opal_console_read, OPAL_CONSOLE_READ); @@ -271,6 +265,7 @@ OPAL_CALL(opal_validate_flash, OPAL_FLASH_VALIDATE); OPAL_CALL(opal_manage_flash, OPAL_FLASH_MANAGE); OPAL_CALL(opal_update_flash, OPAL_FLASH_UPDATE); OPAL_CALL(opal_resync_timebase, OPAL_RESYNC_TIMEBASE); +OPAL_CALL_REAL(opal_rm_resync_timebase, OPAL_RESYNC_TIMEBASE); OPAL_CALL(opal_check_token, OPAL_CHECK_TOKEN); OPAL_CALL(opal_dump_init, OPAL_DUMP_INIT); OPAL_CALL(opal_dump_info, OPAL_DUMP_INFO); @@ -278,6 +273,7 @@ OPAL_CALL(opal_dump_info2, OPAL_DUMP_INFO2); OPAL_CALL(opal_dump_read, OPAL_DUMP_READ); OPAL_CALL(opal_dump_ack, OPAL_DUMP_ACK); OPAL_CALL(opal_get_msg, OPAL_GET_MSG); +OPAL_CALL(opal_write_oppanel_async, OPAL_WRITE_OPPANEL_ASYNC); OPAL_CALL(opal_check_completion, OPAL_CHECK_ASYNC_COMPLETION); OPAL_CALL(opal_dump_resend_notification, OPAL_DUMP_RESEND); OPAL_CALL(opal_sync_host_reboot, OPAL_SYNC_HOST_REBOOT); @@ -285,7 +281,9 @@ OPAL_CALL(opal_sensor_read, OPAL_SENSOR_READ); OPAL_CALL(opal_get_param, OPAL_GET_PARAM); OPAL_CALL(opal_set_param, OPAL_SET_PARAM); OPAL_CALL(opal_handle_hmi, OPAL_HANDLE_HMI); +OPAL_CALL_REAL(opal_rm_handle_hmi, OPAL_HANDLE_HMI); OPAL_CALL(opal_config_cpu_idle_state, OPAL_CONFIG_CPU_IDLE_STATE); +OPAL_CALL_REAL(opal_rm_config_cpu_idle_state, OPAL_CONFIG_CPU_IDLE_STATE); OPAL_CALL(opal_slw_set_reg, OPAL_SLW_SET_REG); OPAL_CALL(opal_register_dump_region, OPAL_REGISTER_DUMP_REGION); OPAL_CALL(opal_unregister_dump_region, OPAL_UNREGISTER_DUMP_REGION); @@ -302,3 +300,13 @@ OPAL_CALL(opal_prd_msg, OPAL_PRD_MSG); OPAL_CALL(opal_leds_get_ind, OPAL_LEDS_GET_INDICATOR); OPAL_CALL(opal_leds_set_ind, OPAL_LEDS_SET_INDICATOR); OPAL_CALL(opal_console_flush, OPAL_CONSOLE_FLUSH); +OPAL_CALL(opal_get_device_tree, OPAL_GET_DEVICE_TREE); +OPAL_CALL(opal_pci_get_presence_state, OPAL_PCI_GET_PRESENCE_STATE); +OPAL_CALL(opal_pci_get_power_state, OPAL_PCI_GET_POWER_STATE); +OPAL_CALL(opal_pci_set_power_state, OPAL_PCI_SET_POWER_STATE); +OPAL_CALL(opal_int_get_xirr, OPAL_INT_GET_XIRR); +OPAL_CALL(opal_int_set_cppr, OPAL_INT_SET_CPPR); +OPAL_CALL(opal_int_eoi, OPAL_INT_EOI); +OPAL_CALL(opal_int_set_mfrr, OPAL_INT_SET_MFRR); +OPAL_CALL(opal_pci_tce_kill, OPAL_PCI_TCE_KILL); +OPAL_CALL_REAL(opal_rm_pci_tce_kill, OPAL_PCI_TCE_KILL); diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c index 0256d0729252..8b4fc68cebcb 100644 --- a/arch/powerpc/platforms/powernv/opal.c +++ b/arch/powerpc/platforms/powernv/opal.c @@ -55,8 +55,9 @@ struct device_node *opal_node; static DEFINE_SPINLOCK(opal_write_lock); static struct atomic_notifier_head opal_msg_notifier_head[OPAL_MSG_TYPE_MAX]; static uint32_t opal_heartbeat; +static struct task_struct *kopald_tsk; -static void opal_reinit_cores(void) +void opal_configure_cores(void) { /* Do the actual re-init, This will clobber all FPRs, VRs, etc... * @@ -69,6 +70,10 @@ static void opal_reinit_cores(void) #else opal_reinit_cpus(OPAL_REINIT_CPUS_HILE_LE); #endif + + /* Restore some bits */ + if (cur_cpu_spec->cpu_restore) + cur_cpu_spec->cpu_restore(); } int __init early_init_dt_scan_opal(unsigned long node, @@ -105,13 +110,6 @@ int __init early_init_dt_scan_opal(unsigned long node, panic("OPAL != V3 detected, no longer supported.\n"); } - /* Reinit all cores with the right endian */ - opal_reinit_cores(); - - /* Restore some bits */ - if (cur_cpu_spec->cpu_restore) - cur_cpu_spec->cpu_restore(); - return 1; } @@ -653,6 +651,7 @@ static void opal_i2c_create_devs(void) static int kopald(void *unused) { + unsigned long timeout = msecs_to_jiffies(opal_heartbeat) + 1; __be64 events; set_freezable(); @@ -660,12 +659,18 @@ static int kopald(void *unused) try_to_freeze(); opal_poll_events(&events); opal_handle_events(be64_to_cpu(events)); - msleep_interruptible(opal_heartbeat); + schedule_timeout_interruptible(timeout); } while (!kthread_should_stop()); return 0; } +void opal_wake_poller(void) +{ + if (kopald_tsk) + wake_up_process(kopald_tsk); +} + static void opal_init_heartbeat(void) { /* Old firwmware, we assume the HVC heartbeat is sufficient */ @@ -674,7 +679,7 @@ static void opal_init_heartbeat(void) opal_heartbeat = 0; if (opal_heartbeat) - kthread_run(kopald, NULL, "kopald"); + kopald_tsk = kthread_run(kopald, NULL, "kopald"); } static int __init opal_init(void) @@ -751,6 +756,9 @@ static int __init opal_init(void) opal_pdev_init(opal_node, "ibm,opal-flash"); opal_pdev_init(opal_node, "ibm,opal-prd"); + /* Initialise platform device: oppanel interface */ + opal_pdev_init(opal_node, "ibm,opal-oppanel"); + /* Initialise OPAL kmsg dumper for flushing console on panic */ opal_kmsg_init(); @@ -885,3 +893,5 @@ EXPORT_SYMBOL_GPL(opal_i2c_request); /* Export these symbols for PowerNV LED class driver */ EXPORT_SYMBOL_GPL(opal_leds_get_ind); EXPORT_SYMBOL_GPL(opal_leds_set_ind); +/* Export this symbol for PowerNV Operator Panel class driver */ +EXPORT_SYMBOL_GPL(opal_write_oppanel_async); diff --git a/arch/powerpc/platforms/powernv/pci-cxl.c b/arch/powerpc/platforms/powernv/pci-cxl.c new file mode 100644 index 000000000000..1349a099c74c --- /dev/null +++ b/arch/powerpc/platforms/powernv/pci-cxl.c @@ -0,0 +1,385 @@ +/* + * Copyright 2014-2016 IBM Corp. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/module.h> +#include <linux/msi.h> +#include <asm/pci-bridge.h> +#include <asm/pnv-pci.h> +#include <asm/opal.h> +#include <misc/cxl.h> + +#include "pci.h" + +struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + + return of_node_get(hose->dn); +} +EXPORT_SYMBOL(pnv_pci_get_phb_node); + +int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + struct pnv_ioda_pe *pe; + int rc; + + pe = pnv_ioda_get_pe(dev); + if (!pe) + return -ENODEV; + + pe_info(pe, "Switching PHB to CXL\n"); + + rc = opal_pci_set_phb_cxl_mode(phb->opal_id, mode, pe->pe_number); + if (rc == OPAL_UNSUPPORTED) + dev_err(&dev->dev, "Required cxl mode not supported by firmware - update skiboot\n"); + else if (rc) + dev_err(&dev->dev, "opal_pci_set_phb_cxl_mode failed: %i\n", rc); + + return rc; +} +EXPORT_SYMBOL(pnv_phb_to_cxl_mode); + +/* Find PHB for cxl dev and allocate MSI hwirqs? + * Returns the absolute hardware IRQ number + */ +int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + int hwirq = msi_bitmap_alloc_hwirqs(&phb->msi_bmp, num); + + if (hwirq < 0) { + dev_warn(&dev->dev, "Failed to find a free MSI\n"); + return -ENOSPC; + } + + return phb->msi_base + hwirq; +} +EXPORT_SYMBOL(pnv_cxl_alloc_hwirqs); + +void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + + msi_bitmap_free_hwirqs(&phb->msi_bmp, hwirq - phb->msi_base, num); +} +EXPORT_SYMBOL(pnv_cxl_release_hwirqs); + +void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs, + struct pci_dev *dev) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + int i, hwirq; + + for (i = 1; i < CXL_IRQ_RANGES; i++) { + if (!irqs->range[i]) + continue; + pr_devel("cxl release irq range 0x%x: offset: 0x%lx limit: %ld\n", + i, irqs->offset[i], + irqs->range[i]); + hwirq = irqs->offset[i] - phb->msi_base; + msi_bitmap_free_hwirqs(&phb->msi_bmp, hwirq, + irqs->range[i]); + } +} +EXPORT_SYMBOL(pnv_cxl_release_hwirq_ranges); + +int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs, + struct pci_dev *dev, int num) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + int i, hwirq, try; + + memset(irqs, 0, sizeof(struct cxl_irq_ranges)); + + /* 0 is reserved for the multiplexed PSL DSI interrupt */ + for (i = 1; i < CXL_IRQ_RANGES && num; i++) { + try = num; + while (try) { + hwirq = msi_bitmap_alloc_hwirqs(&phb->msi_bmp, try); + if (hwirq >= 0) + break; + try /= 2; + } + if (!try) + goto fail; + + irqs->offset[i] = phb->msi_base + hwirq; + irqs->range[i] = try; + pr_devel("cxl alloc irq range 0x%x: offset: 0x%lx limit: %li\n", + i, irqs->offset[i], irqs->range[i]); + num -= try; + } + if (num) + goto fail; + + return 0; +fail: + pnv_cxl_release_hwirq_ranges(irqs, dev); + return -ENOSPC; +} +EXPORT_SYMBOL(pnv_cxl_alloc_hwirq_ranges); + +int pnv_cxl_get_irq_count(struct pci_dev *dev) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + + return phb->msi_bmp.irq_count; +} +EXPORT_SYMBOL(pnv_cxl_get_irq_count); + +int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq, + unsigned int virq) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + unsigned int xive_num = hwirq - phb->msi_base; + struct pnv_ioda_pe *pe; + int rc; + + if (!(pe = pnv_ioda_get_pe(dev))) + return -ENODEV; + + /* Assign XIVE to PE */ + rc = opal_pci_set_xive_pe(phb->opal_id, pe->pe_number, xive_num); + if (rc) { + pe_warn(pe, "%s: OPAL error %d setting msi_base 0x%x " + "hwirq 0x%x XIVE 0x%x PE\n", + pci_name(dev), rc, phb->msi_base, hwirq, xive_num); + return -EIO; + } + pnv_set_msi_irq_chip(phb, virq); + + return 0; +} +EXPORT_SYMBOL(pnv_cxl_ioda_msi_setup); + +#if IS_MODULE(CONFIG_CXL) +static inline int get_cxl_module(void) +{ + struct module *cxl_module; + + mutex_lock(&module_mutex); + + cxl_module = find_module("cxl"); + if (cxl_module) + __module_get(cxl_module); + + mutex_unlock(&module_mutex); + + if (!cxl_module) + return -ENODEV; + + return 0; +} +#else +static inline int get_cxl_module(void) { return 0; } +#endif + +/* + * Sets flags and switches the controller ops to enable the cxl kernel api. + * Originally the cxl kernel API operated on a virtual PHB, but certain cards + * such as the Mellanox CX4 use a peer model instead and for these cards the + * cxl kernel api will operate on the real PHB. + */ +int pnv_cxl_enable_phb_kernel_api(struct pci_controller *hose, bool enable) +{ + struct pnv_phb *phb = hose->private_data; + int rc; + + if (!enable) { + /* + * Once cxl mode is enabled on the PHB, there is currently no + * known safe method to disable it again, and trying risks a + * checkstop. If we can find a way to safely disable cxl mode + * in the future we can revisit this, but for now the only sane + * thing to do is to refuse to disable cxl mode: + */ + return -EPERM; + } + + /* + * Hold a reference to the cxl module since several PHB operations now + * depend on it, and it would be insane to allow it to be removed so + * long as we are in this mode (and since we can't safely disable this + * mode once enabled...). + */ + rc = get_cxl_module(); + if (rc) + return rc; + + phb->flags |= PNV_PHB_FLAG_CXL; + hose->controller_ops = pnv_cxl_cx4_ioda_controller_ops; + + return 0; +} +EXPORT_SYMBOL_GPL(pnv_cxl_enable_phb_kernel_api); + +bool pnv_pci_on_cxl_phb(struct pci_dev *dev) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + + return !!(phb->flags & PNV_PHB_FLAG_CXL); +} +EXPORT_SYMBOL_GPL(pnv_pci_on_cxl_phb); + +struct cxl_afu *pnv_cxl_phb_to_afu(struct pci_controller *hose) +{ + struct pnv_phb *phb = hose->private_data; + + return (struct cxl_afu *)phb->cxl_afu; +} +EXPORT_SYMBOL_GPL(pnv_cxl_phb_to_afu); + +void pnv_cxl_phb_set_peer_afu(struct pci_dev *dev, struct cxl_afu *afu) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + + phb->cxl_afu = afu; +} +EXPORT_SYMBOL_GPL(pnv_cxl_phb_set_peer_afu); + +/* + * In the peer cxl model, the XSL/PSL is physical function 0, and will be used + * by other functions on the device for memory access and interrupts. When the + * other functions are enabled we explicitly take a reference on the cxl + * function since they will use it, and allocate a default context associated + * with that function just like the vPHB model of the cxl kernel API. + */ +bool pnv_cxl_enable_device_hook(struct pci_dev *dev) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + struct cxl_afu *afu = phb->cxl_afu; + + if (!pnv_pci_enable_device_hook(dev)) + return false; + + + /* No special handling for the cxl function, which is always PF 0 */ + if (PCI_FUNC(dev->devfn) == 0) + return true; + + if (!afu) { + dev_WARN(&dev->dev, "Attempted to enable function > 0 on CXL PHB without a peer AFU\n"); + return false; + } + + dev_info(&dev->dev, "Enabling function on CXL enabled PHB with peer AFU\n"); + + /* Make sure the peer AFU can't go away while this device is active */ + cxl_afu_get(afu); + + return cxl_pci_associate_default_context(dev, afu); +} + +void pnv_cxl_disable_device(struct pci_dev *dev) +{ + struct pci_controller *hose = pci_bus_to_host(dev->bus); + struct pnv_phb *phb = hose->private_data; + struct cxl_afu *afu = phb->cxl_afu; + + /* No special handling for cxl function: */ + if (PCI_FUNC(dev->devfn) == 0) + return; + + cxl_pci_disable_device(dev); + cxl_afu_put(afu); +} + +/* + * This is a special version of pnv_setup_msi_irqs for cards in cxl mode. This + * function handles setting up the IVTE entries for the XSL to use. + * + * We are currently not filling out the MSIX table, since the only currently + * supported adapter (CX4) uses a custom MSIX table format in cxl mode and it + * is up to their driver to fill that out. In the future we may fill out the + * MSIX table (and change the IVTE entries to be an index to the MSIX table) + * for adapters implementing the Full MSI-X mode described in the CAIA. + */ +int pnv_cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) +{ + struct pci_controller *hose = pci_bus_to_host(pdev->bus); + struct pnv_phb *phb = hose->private_data; + struct msi_desc *entry; + struct cxl_context *ctx = NULL; + unsigned int virq; + int hwirq; + int afu_irq = 0; + int rc; + + if (WARN_ON(!phb) || !phb->msi_bmp.bitmap) + return -ENODEV; + + if (pdev->no_64bit_msi && !phb->msi32_support) + return -ENODEV; + + rc = cxl_cx4_setup_msi_irqs(pdev, nvec, type); + if (rc) + return rc; + + for_each_pci_msi_entry(entry, pdev) { + if (!entry->msi_attrib.is_64 && !phb->msi32_support) { + pr_warn("%s: Supports only 64-bit MSIs\n", + pci_name(pdev)); + return -ENXIO; + } + + hwirq = cxl_next_msi_hwirq(pdev, &ctx, &afu_irq); + if (WARN_ON(hwirq <= 0)) + return (hwirq ? hwirq : -ENOMEM); + + virq = irq_create_mapping(NULL, hwirq); + if (virq == NO_IRQ) { + pr_warn("%s: Failed to map cxl mode MSI to linux irq\n", + pci_name(pdev)); + return -ENOMEM; + } + + rc = pnv_cxl_ioda_msi_setup(pdev, hwirq, virq); + if (rc) { + pr_warn("%s: Failed to setup cxl mode MSI\n", pci_name(pdev)); + irq_dispose_mapping(virq); + return rc; + } + + irq_set_msi_desc(virq, entry); + } + + return 0; +} + +void pnv_cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev) +{ + struct pci_controller *hose = pci_bus_to_host(pdev->bus); + struct pnv_phb *phb = hose->private_data; + struct msi_desc *entry; + irq_hw_number_t hwirq; + + if (WARN_ON(!phb)) + return; + + for_each_pci_msi_entry(entry, pdev) { + if (entry->irq == NO_IRQ) + continue; + hwirq = virq_to_hw(entry->irq); + irq_set_msi_desc(entry->irq, NULL); + irq_dispose_mapping(entry->irq); + } + + cxl_cx4_teardown_msi_irqs(pdev); +} diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 3a5ea8236db8..891fc4a453df 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -55,6 +55,7 @@ #define POWERNV_IOMMU_DEFAULT_LEVELS 1 #define POWERNV_IOMMU_MAX_LEVELS 5 +static const char * const pnv_phb_names[] = { "IODA1", "IODA2", "NPU" }; static void pnv_pci_ioda2_table_free_pages(struct iommu_table *tbl); void pe_level_printk(const struct pnv_ioda_pe *pe, const char *level, @@ -141,16 +142,14 @@ static void pnv_ioda_reserve_pe(struct pnv_phb *phb, int pe_no) static struct pnv_ioda_pe *pnv_ioda_alloc_pe(struct pnv_phb *phb) { - unsigned long pe; + unsigned long pe = phb->ioda.total_pe_num - 1; - do { - pe = find_next_zero_bit(phb->ioda.pe_alloc, - phb->ioda.total_pe_num, 0); - if (pe >= phb->ioda.total_pe_num) - return NULL; - } while(test_and_set_bit(pe, phb->ioda.pe_alloc)); + for (pe = phb->ioda.total_pe_num - 1; pe >= 0; pe--) { + if (!test_and_set_bit(pe, phb->ioda.pe_alloc)) + return pnv_ioda_init_pe(phb, pe); + } - return pnv_ioda_init_pe(phb, pe); + return NULL; } static void pnv_ioda_free_pe(struct pnv_ioda_pe *pe) @@ -192,18 +191,15 @@ static int pnv_ioda2_init_m64(struct pnv_phb *phb) goto fail; } - /* Mark the M64 BAR assigned */ - set_bit(phb->ioda.m64_bar_idx, &phb->ioda.m64_bar_alloc); - /* - * Strip off the segment used by the reserved PE, which is - * expected to be 0 or last one of PE capabicity. + * Exclude the segments for reserved and root bus PE, which + * are first or last two PEs. */ r = &phb->hose->mem_resources[1]; if (phb->ioda.reserved_pe_idx == 0) - r->start += phb->ioda.m64_segsize; + r->start += (2 * phb->ioda.m64_segsize); else if (phb->ioda.reserved_pe_idx == (phb->ioda.total_pe_num - 1)) - r->end -= phb->ioda.m64_segsize; + r->end -= (2 * phb->ioda.m64_segsize); else pr_warn(" Cannot strip M64 segment for reserved PE#%d\n", phb->ioda.reserved_pe_idx); @@ -283,14 +279,14 @@ static int pnv_ioda1_init_m64(struct pnv_phb *phb) } /* - * Exclude the segment used by the reserved PE, which - * is expected to be 0 or last supported PE#. + * Exclude the segments for reserved and root bus PE, which + * are first or last two PEs. */ r = &phb->hose->mem_resources[1]; if (phb->ioda.reserved_pe_idx == 0) - r->start += phb->ioda.m64_segsize; + r->start += (2 * phb->ioda.m64_segsize); else if (phb->ioda.reserved_pe_idx == (phb->ioda.total_pe_num - 1)) - r->end -= phb->ioda.m64_segsize; + r->end -= (2 * phb->ioda.m64_segsize); else WARN(1, "Wrong reserved PE#%d on PHB#%d\n", phb->ioda.reserved_pe_idx, phb->hose->global_number); @@ -405,6 +401,7 @@ static void __init pnv_ioda_parse_m64_window(struct pnv_phb *phb) struct pci_controller *hose = phb->hose; struct device_node *dn = hose->dn; struct resource *res; + u32 m64_range[2], i; const u32 *r; u64 pci_addr; @@ -425,6 +422,30 @@ static void __init pnv_ioda_parse_m64_window(struct pnv_phb *phb) return; } + /* + * Find the available M64 BAR range and pickup the last one for + * covering the whole 64-bits space. We support only one range. + */ + if (of_property_read_u32_array(dn, "ibm,opal-available-m64-ranges", + m64_range, 2)) { + /* In absence of the property, assume 0..15 */ + m64_range[0] = 0; + m64_range[1] = 16; + } + /* We only support 64 bits in our allocator */ + if (m64_range[1] > 63) { + pr_warn("%s: Limiting M64 range to 63 (from %d) on PHB#%x\n", + __func__, m64_range[1], phb->hose->global_number); + m64_range[1] = 63; + } + /* Empty range, no m64 */ + if (m64_range[1] <= m64_range[0]) { + pr_warn("%s: M64 empty, disabling M64 usage on PHB#%x\n", + __func__, phb->hose->global_number); + return; + } + + /* Configure M64 informations */ res = &hose->mem_resources[1]; res->name = dn->full_name; res->start = of_translate_address(dn, r + 2); @@ -437,11 +458,28 @@ static void __init pnv_ioda_parse_m64_window(struct pnv_phb *phb) phb->ioda.m64_segsize = phb->ioda.m64_size / phb->ioda.total_pe_num; phb->ioda.m64_base = pci_addr; - pr_info(" MEM64 0x%016llx..0x%016llx -> 0x%016llx\n", - res->start, res->end, pci_addr); + /* This lines up nicely with the display from processing OF ranges */ + pr_info(" MEM 0x%016llx..0x%016llx -> 0x%016llx (M64 #%d..%d)\n", + res->start, res->end, pci_addr, m64_range[0], + m64_range[0] + m64_range[1] - 1); + + /* Mark all M64 used up by default */ + phb->ioda.m64_bar_alloc = (unsigned long)-1; /* Use last M64 BAR to cover M64 window */ - phb->ioda.m64_bar_idx = 15; + m64_range[1]--; + phb->ioda.m64_bar_idx = m64_range[0] + m64_range[1]; + + pr_info(" Using M64 #%d as default window\n", phb->ioda.m64_bar_idx); + + /* Mark remaining ones free */ + for (i = m64_range[0]; i < m64_range[1]; i++) + clear_bit(i, &phb->ioda.m64_bar_alloc); + + /* + * Setup init functions for M64 based on IODA version, IODA3 uses + * the IODA2 code. + */ if (phb->type == PNV_PHB_IODA1) phb->init_m64 = pnv_ioda1_init_m64; else @@ -596,7 +634,7 @@ static int pnv_ioda_get_pe_state(struct pnv_phb *phb, int pe_no) * but in the meantime, we need to protect them to avoid warnings */ #ifdef CONFIG_PCI_MSI -static struct pnv_ioda_pe *pnv_ioda_get_pe(struct pci_dev *dev) +struct pnv_ioda_pe *pnv_ioda_get_pe(struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); struct pnv_phb *phb = hose->private_data; @@ -714,7 +752,6 @@ static int pnv_ioda_set_peltv(struct pnv_phb *phb, return 0; } -#ifdef CONFIG_PCI_IOV static int pnv_ioda_deconfigure_pe(struct pnv_phb *phb, struct pnv_ioda_pe *pe) { struct pci_dev *parent; @@ -749,9 +786,11 @@ static int pnv_ioda_deconfigure_pe(struct pnv_phb *phb, struct pnv_ioda_pe *pe) } rid_end = pe->rid + (count << 8); } else { +#ifdef CONFIG_PCI_IOV if (pe->flags & PNV_IODA_PE_VF) parent = pe->parent_dev; else +#endif parent = pe->pdev->bus->self; bcomp = OpalPciBusAll; dcomp = OPAL_COMPARE_RID_DEVICE_NUMBER; @@ -761,7 +800,7 @@ static int pnv_ioda_deconfigure_pe(struct pnv_phb *phb, struct pnv_ioda_pe *pe) /* Clear the reverse map */ for (rid = pe->rid; rid < rid_end; rid++) - phb->ioda.pe_rmap[rid] = 0; + phb->ioda.pe_rmap[rid] = IODA_INVALID_PE; /* Release from all parents PELT-V */ while (parent) { @@ -789,11 +828,12 @@ static int pnv_ioda_deconfigure_pe(struct pnv_phb *phb, struct pnv_ioda_pe *pe) pe->pbus = NULL; pe->pdev = NULL; +#ifdef CONFIG_PCI_IOV pe->parent_dev = NULL; +#endif return 0; } -#endif /* CONFIG_PCI_IOV */ static int pnv_ioda_configure_pe(struct pnv_phb *phb, struct pnv_ioda_pe *pe) { @@ -1024,6 +1064,16 @@ static void pnv_ioda_setup_same_PE(struct pci_bus *bus, struct pnv_ioda_pe *pe) pci_name(dev)); continue; } + + /* + * In partial hotplug case, the PCI device might be still + * associated with the PE and needn't attach it to the PE + * again. + */ + if (pdn->pe_number != IODA_INVALID_PE) + continue; + + pe->device_count++; pdn->pcidev = dev; pdn->pe_number = pe->pe_number; if ((pe->flags & PNV_IODA_PE_BUS_ALL) && dev->subordinate) @@ -1042,9 +1092,26 @@ static struct pnv_ioda_pe *pnv_ioda_setup_bus_PE(struct pci_bus *bus, bool all) struct pci_controller *hose = pci_bus_to_host(bus); struct pnv_phb *phb = hose->private_data; struct pnv_ioda_pe *pe = NULL; + unsigned int pe_num; + + /* + * In partial hotplug case, the PE instance might be still alive. + * We should reuse it instead of allocating a new one. + */ + pe_num = phb->ioda.pe_rmap[bus->number << 8]; + if (pe_num != IODA_INVALID_PE) { + pe = &phb->ioda.pe_array[pe_num]; + pnv_ioda_setup_same_PE(bus, pe); + return NULL; + } + + /* PE number for root bus should have been reserved */ + if (pci_is_root_bus(bus) && + phb->ioda.root_pe_idx != IODA_INVALID_PE) + pe = &phb->ioda.pe_array[phb->ioda.root_pe_idx]; /* Check if PE is determined by M64 */ - if (phb->pick_m64_pe) + if (!pe && phb->pick_m64_pe) pe = phb->pick_m64_pe(bus, all); /* The PE number isn't pinned by M64 */ @@ -1156,30 +1223,6 @@ static void pnv_ioda_setup_npu_PEs(struct pci_bus *bus) pnv_ioda_setup_npu_PE(pdev); } -static void pnv_ioda_setup_PEs(struct pci_bus *bus) -{ - struct pci_dev *dev; - - pnv_ioda_setup_bus_PE(bus, false); - - list_for_each_entry(dev, &bus->devices, bus_list) { - if (dev->subordinate) { - if (pci_pcie_type(dev) == PCI_EXP_TYPE_PCI_BRIDGE) - pnv_ioda_setup_bus_PE(dev->subordinate, true); - else - pnv_ioda_setup_PEs(dev->subordinate); - } - } -} - -/* - * Configure PEs so that the downstream PCI buses and devices - * could have their associated PE#. Unfortunately, we didn't - * figure out the way to identify the PLX bridge yet. So we - * simply put the PCI bus and the subordinate behind the root - * port to PE# here. The game rule here is expected to be changed - * as soon as we can detected PLX bridge correctly. - */ static void pnv_pci_ioda_setup_PEs(void) { struct pci_controller *hose, *tmp; @@ -1187,22 +1230,11 @@ static void pnv_pci_ioda_setup_PEs(void) list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { phb = hose->private_data; - - /* M64 layout might affect PE allocation */ - if (phb->reserve_m64_pe) - phb->reserve_m64_pe(hose->bus, NULL, true); - - /* - * On NPU PHB, we expect separate PEs for individual PCI - * functions. PCI bus dependent PEs are required for the - * remaining types of PHBs. - */ if (phb->type == PNV_PHB_NPU) { /* PE#0 is needed for error reporting */ pnv_ioda_reserve_pe(phb, 0); pnv_ioda_setup_npu_PEs(hose->bus); - } else - pnv_ioda_setup_PEs(hose->bus); + } } } @@ -1728,7 +1760,14 @@ static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe, } } -static void pnv_pci_ioda1_tce_invalidate(struct iommu_table *tbl, +static inline __be64 __iomem *pnv_ioda_get_inval_reg(struct pnv_phb *phb, + bool real_mode) +{ + return real_mode ? (__be64 __iomem *)(phb->regs_phys + 0x210) : + (phb->regs + 0x210); +} + +static void pnv_pci_p7ioc_tce_invalidate(struct iommu_table *tbl, unsigned long index, unsigned long npages, bool rm) { struct iommu_table_group_link *tgl = list_first_entry_or_null( @@ -1736,33 +1775,17 @@ static void pnv_pci_ioda1_tce_invalidate(struct iommu_table *tbl, next); struct pnv_ioda_pe *pe = container_of(tgl->table_group, struct pnv_ioda_pe, table_group); - __be64 __iomem *invalidate = rm ? - (__be64 __iomem *)pe->phb->ioda.tce_inval_reg_phys : - pe->phb->ioda.tce_inval_reg; + __be64 __iomem *invalidate = pnv_ioda_get_inval_reg(pe->phb, rm); unsigned long start, end, inc; - const unsigned shift = tbl->it_page_shift; start = __pa(((__be64 *)tbl->it_base) + index - tbl->it_offset); end = __pa(((__be64 *)tbl->it_base) + index - tbl->it_offset + npages - 1); - /* BML uses this case for p6/p7/galaxy2: Shift addr and put in node */ - if (tbl->it_busno) { - start <<= shift; - end <<= shift; - inc = 128ull << shift; - start |= tbl->it_busno; - end |= tbl->it_busno; - } else if (tbl->it_type & TCE_PCI_SWINV_PAIR) { - /* p7ioc-style invalidation, 2 TCEs per write */ - start |= (1ull << 63); - end |= (1ull << 63); - inc = 16; - } else { - /* Default (older HW) */ - inc = 128; - } - + /* p7ioc-style invalidation, 2 TCEs per write */ + start |= (1ull << 63); + end |= (1ull << 63); + inc = 16; end |= inc - 1; /* round up end to be different than start */ mb(); /* Ensure above stores are visible */ @@ -1788,8 +1811,8 @@ static int pnv_ioda1_tce_build(struct iommu_table *tbl, long index, int ret = pnv_tce_build(tbl, index, npages, uaddr, direction, attrs); - if (!ret && (tbl->it_type & TCE_PCI_SWINV_CREATE)) - pnv_pci_ioda1_tce_invalidate(tbl, index, npages, false); + if (!ret) + pnv_pci_p7ioc_tce_invalidate(tbl, index, npages, false); return ret; } @@ -1800,9 +1823,8 @@ static int pnv_ioda1_tce_xchg(struct iommu_table *tbl, long index, { long ret = pnv_tce_xchg(tbl, index, hpa, direction); - if (!ret && (tbl->it_type & - (TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE))) - pnv_pci_ioda1_tce_invalidate(tbl, index, 1, false); + if (!ret) + pnv_pci_p7ioc_tce_invalidate(tbl, index, 1, false); return ret; } @@ -1813,8 +1835,7 @@ static void pnv_ioda1_tce_free(struct iommu_table *tbl, long index, { pnv_tce_free(tbl, index, npages); - if (tbl->it_type & TCE_PCI_SWINV_FREE) - pnv_pci_ioda1_tce_invalidate(tbl, index, npages, false); + pnv_pci_p7ioc_tce_invalidate(tbl, index, npages, false); } static struct iommu_table_ops pnv_ioda1_iommu_ops = { @@ -1826,45 +1847,42 @@ static struct iommu_table_ops pnv_ioda1_iommu_ops = { .get = pnv_tce_get, }; -#define TCE_KILL_INVAL_ALL PPC_BIT(0) -#define TCE_KILL_INVAL_PE PPC_BIT(1) -#define TCE_KILL_INVAL_TCE PPC_BIT(2) +#define PHB3_TCE_KILL_INVAL_ALL PPC_BIT(0) +#define PHB3_TCE_KILL_INVAL_PE PPC_BIT(1) +#define PHB3_TCE_KILL_INVAL_ONE PPC_BIT(2) -void pnv_pci_ioda2_tce_invalidate_entire(struct pnv_phb *phb, bool rm) +void pnv_pci_phb3_tce_invalidate_entire(struct pnv_phb *phb, bool rm) { - const unsigned long val = TCE_KILL_INVAL_ALL; + __be64 __iomem *invalidate = pnv_ioda_get_inval_reg(phb, rm); + const unsigned long val = PHB3_TCE_KILL_INVAL_ALL; mb(); /* Ensure previous TCE table stores are visible */ if (rm) - __raw_rm_writeq(cpu_to_be64(val), - (__be64 __iomem *) - phb->ioda.tce_inval_reg_phys); + __raw_rm_writeq(cpu_to_be64(val), invalidate); else - __raw_writeq(cpu_to_be64(val), phb->ioda.tce_inval_reg); + __raw_writeq(cpu_to_be64(val), invalidate); } -static inline void pnv_pci_ioda2_tce_invalidate_pe(struct pnv_ioda_pe *pe) +static inline void pnv_pci_phb3_tce_invalidate_pe(struct pnv_ioda_pe *pe) { /* 01xb - invalidate TCEs that match the specified PE# */ - unsigned long val = TCE_KILL_INVAL_PE | (pe->pe_number & 0xFF); - struct pnv_phb *phb = pe->phb; - - if (!phb->ioda.tce_inval_reg) - return; + __be64 __iomem *invalidate = pnv_ioda_get_inval_reg(pe->phb, false); + unsigned long val = PHB3_TCE_KILL_INVAL_PE | (pe->pe_number & 0xFF); mb(); /* Ensure above stores are visible */ - __raw_writeq(cpu_to_be64(val), phb->ioda.tce_inval_reg); + __raw_writeq(cpu_to_be64(val), invalidate); } -static void pnv_pci_ioda2_do_tce_invalidate(unsigned pe_number, bool rm, - __be64 __iomem *invalidate, unsigned shift, - unsigned long index, unsigned long npages) +static void pnv_pci_phb3_tce_invalidate(struct pnv_ioda_pe *pe, bool rm, + unsigned shift, unsigned long index, + unsigned long npages) { + __be64 __iomem *invalidate = pnv_ioda_get_inval_reg(pe->phb, false); unsigned long start, end, inc; /* We'll invalidate DMA address in PE scope */ - start = TCE_KILL_INVAL_TCE; - start |= (pe_number & 0xFF); + start = PHB3_TCE_KILL_INVAL_ONE; + start |= (pe->pe_number & 0xFF); end = start; /* Figure out the start, end and step */ @@ -1882,6 +1900,17 @@ static void pnv_pci_ioda2_do_tce_invalidate(unsigned pe_number, bool rm, } } +static inline void pnv_pci_ioda2_tce_invalidate_pe(struct pnv_ioda_pe *pe) +{ + struct pnv_phb *phb = pe->phb; + + if (phb->model == PNV_PHB_MODEL_PHB3 && phb->regs) + pnv_pci_phb3_tce_invalidate_pe(pe); + else + opal_pci_tce_kill(phb->opal_id, OPAL_PCI_TCE_KILL_PE, + pe->pe_number, 0, 0, 0); +} + static void pnv_pci_ioda2_tce_invalidate(struct iommu_table *tbl, unsigned long index, unsigned long npages, bool rm) { @@ -1890,22 +1919,31 @@ static void pnv_pci_ioda2_tce_invalidate(struct iommu_table *tbl, list_for_each_entry_rcu(tgl, &tbl->it_group_list, next) { struct pnv_ioda_pe *pe = container_of(tgl->table_group, struct pnv_ioda_pe, table_group); - __be64 __iomem *invalidate = rm ? - (__be64 __iomem *)pe->phb->ioda.tce_inval_reg_phys : - pe->phb->ioda.tce_inval_reg; + struct pnv_phb *phb = pe->phb; + unsigned int shift = tbl->it_page_shift; - if (pe->phb->type == PNV_PHB_NPU) { + if (phb->type == PNV_PHB_NPU) { /* * The NVLink hardware does not support TCE kill * per TCE entry so we have to invalidate * the entire cache for it. */ - pnv_pci_ioda2_tce_invalidate_entire(pe->phb, rm); + pnv_pci_phb3_tce_invalidate_entire(phb, rm); continue; } - pnv_pci_ioda2_do_tce_invalidate(pe->pe_number, rm, - invalidate, tbl->it_page_shift, - index, npages); + if (phb->model == PNV_PHB_MODEL_PHB3 && phb->regs) + pnv_pci_phb3_tce_invalidate(pe, rm, shift, + index, npages); + else if (rm) + opal_rm_pci_tce_kill(phb->opal_id, + OPAL_PCI_TCE_KILL_PAGES, + pe->pe_number, 1u << shift, + index << shift, npages); + else + opal_pci_tce_kill(phb->opal_id, + OPAL_PCI_TCE_KILL_PAGES, + pe->pe_number, 1u << shift, + index << shift, npages); } } @@ -1917,7 +1955,7 @@ static int pnv_ioda2_tce_build(struct iommu_table *tbl, long index, int ret = pnv_tce_build(tbl, index, npages, uaddr, direction, attrs); - if (!ret && (tbl->it_type & TCE_PCI_SWINV_CREATE)) + if (!ret) pnv_pci_ioda2_tce_invalidate(tbl, index, npages, false); return ret; @@ -1929,8 +1967,7 @@ static int pnv_ioda2_tce_xchg(struct iommu_table *tbl, long index, { long ret = pnv_tce_xchg(tbl, index, hpa, direction); - if (!ret && (tbl->it_type & - (TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE))) + if (!ret) pnv_pci_ioda2_tce_invalidate(tbl, index, 1, false); return ret; @@ -1942,8 +1979,7 @@ static void pnv_ioda2_tce_free(struct iommu_table *tbl, long index, { pnv_tce_free(tbl, index, npages); - if (tbl->it_type & TCE_PCI_SWINV_FREE) - pnv_pci_ioda2_tce_invalidate(tbl, index, npages, false); + pnv_pci_ioda2_tce_invalidate(tbl, index, npages, false); } static void pnv_ioda2_table_free(struct iommu_table *tbl) @@ -2112,12 +2148,6 @@ found: base * PNV_IODA1_DMA32_SEGSIZE, IOMMU_PAGE_SHIFT_4K); - /* OPAL variant of P7IOC SW invalidated TCEs */ - if (phb->ioda.tce_inval_reg) - tbl->it_type |= (TCE_PCI_SWINV_CREATE | - TCE_PCI_SWINV_FREE | - TCE_PCI_SWINV_PAIR); - tbl->it_ops = &pnv_ioda1_iommu_ops; pe->table_group.tce32_start = tbl->it_offset << tbl->it_page_shift; pe->table_group.tce32_size = tbl->it_size << tbl->it_page_shift; @@ -2179,7 +2209,7 @@ static long pnv_pci_ioda2_set_window(struct iommu_table_group *table_group, pnv_pci_link_table_and_group(phb->hose->node, num, tbl, &pe->table_group); - pnv_pci_ioda2_tce_invalidate_pe(pe); + pnv_pci_phb3_tce_invalidate_pe(pe); return 0; } @@ -2240,8 +2270,6 @@ static long pnv_pci_ioda2_create_table(struct iommu_table_group *table_group, } tbl->it_ops = &pnv_ioda2_iommu_ops; - if (pe->phb->ioda.tce_inval_reg) - tbl->it_type |= (TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE); *ptbl = tbl; @@ -2290,10 +2318,6 @@ static long pnv_pci_ioda2_setup_default_config(struct pnv_ioda_pe *pe) if (!pnv_iommu_bypass_disabled) pnv_pci_ioda2_set_bypass(pe, true); - /* OPAL variant of PHB3 invalidated TCEs */ - if (pe->phb->ioda.tce_inval_reg) - tbl->it_type |= (TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE); - /* * Setting table base here only for carrying iommu_group * further down to let iommu_add_device() do the job. @@ -2323,7 +2347,7 @@ static long pnv_pci_ioda2_unset_window(struct iommu_table_group *table_group, if (ret) pe_warn(pe, "Unmapping failed, ret = %ld\n", ret); else - pnv_pci_ioda2_tce_invalidate_pe(pe); + pnv_pci_phb3_tce_invalidate_pe(pe); pnv_pci_unlink_table_and_group(table_group->tables[num], table_group); @@ -2504,19 +2528,6 @@ static void pnv_pci_ioda_setup_iommu_api(void) static void pnv_pci_ioda_setup_iommu_api(void) { }; #endif -static void pnv_pci_ioda_setup_opal_tce_kill(struct pnv_phb *phb) -{ - const __be64 *swinvp; - - /* OPAL variant of PHB3 invalidated TCEs */ - swinvp = of_get_property(phb->hose->dn, "ibm,opal-tce-kill", NULL); - if (!swinvp) - return; - - phb->ioda.tce_inval_reg_phys = be64_to_cpup(swinvp); - phb->ioda.tce_inval_reg = ioremap(phb->ioda.tce_inval_reg_phys, 8); -} - static __be64 *pnv_pci_ioda2_table_do_alloc_pages(int nid, unsigned shift, unsigned levels, unsigned long limit, unsigned long *current_offset, unsigned long *total_allocated) @@ -2657,6 +2668,9 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb, { int64_t rc; + if (!pnv_pci_ioda_pe_dma_weight(pe)) + return; + /* TVE #1 is selected by PCI address bit 59 */ pe->tce_bypass_base = 1ull << 59; @@ -2688,49 +2702,6 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb, pnv_ioda_setup_bus_dma(pe, pe->pbus); } -static void pnv_ioda_setup_dma(struct pnv_phb *phb) -{ - struct pci_controller *hose = phb->hose; - struct pnv_ioda_pe *pe; - unsigned int weight; - - /* If we have more PE# than segments available, hand out one - * per PE until we run out and let the rest fail. If not, - * then we assign at least one segment per PE, plus more based - * on the amount of devices under that PE - */ - pr_info("PCI: Domain %04x has %d available 32-bit DMA segments\n", - hose->global_number, phb->ioda.dma32_count); - - pnv_pci_ioda_setup_opal_tce_kill(phb); - - /* Walk our PE list and configure their DMA segments */ - list_for_each_entry(pe, &phb->ioda.pe_list, list) { - weight = pnv_pci_ioda_pe_dma_weight(pe); - if (!weight) - continue; - - /* - * For IODA2 compliant PHB3, we needn't care about the weight. - * The all available 32-bits DMA space will be assigned to - * the specific PE. - */ - if (phb->type == PNV_PHB_IODA1) { - pnv_pci_ioda1_setup_dma_pe(phb, pe); - } else if (phb->type == PNV_PHB_IODA2) { - pe_info(pe, "Assign DMA32 space\n"); - pnv_pci_ioda2_setup_dma_pe(phb, pe); - } else if (phb->type == PNV_PHB_NPU) { - /* - * We initialise the DMA space for an NPU PHB - * after setup of the PHB is complete as we - * point the NPU TVT to the the same location - * as the PHB3 TVT. - */ - } - } -} - #ifdef CONFIG_PCI_MSI static void pnv_ioda2_msi_eoi(struct irq_data *d) { @@ -2747,12 +2718,13 @@ static void pnv_ioda2_msi_eoi(struct irq_data *d) } -static void set_msi_irq_chip(struct pnv_phb *phb, unsigned int virq) +void pnv_set_msi_irq_chip(struct pnv_phb *phb, unsigned int virq) { struct irq_data *idata; struct irq_chip *ichip; - if (phb->type != PNV_PHB_IODA2) + /* The MSI EOI OPAL call is only needed on PHB3 */ + if (phb->model != PNV_PHB_MODEL_PHB3) return; if (!phb->ioda.irq_chip_init) { @@ -2769,157 +2741,6 @@ static void set_msi_irq_chip(struct pnv_phb *phb, unsigned int virq) irq_set_chip(virq, &phb->ioda.irq_chip); } -#ifdef CONFIG_CXL_BASE - -struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - - return of_node_get(hose->dn); -} -EXPORT_SYMBOL(pnv_pci_get_phb_node); - -int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - struct pnv_ioda_pe *pe; - int rc; - - pe = pnv_ioda_get_pe(dev); - if (!pe) - return -ENODEV; - - pe_info(pe, "Switching PHB to CXL\n"); - - rc = opal_pci_set_phb_cxl_mode(phb->opal_id, mode, pe->pe_number); - if (rc) - dev_err(&dev->dev, "opal_pci_set_phb_cxl_mode failed: %i\n", rc); - - return rc; -} -EXPORT_SYMBOL(pnv_phb_to_cxl_mode); - -/* Find PHB for cxl dev and allocate MSI hwirqs? - * Returns the absolute hardware IRQ number - */ -int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - int hwirq = msi_bitmap_alloc_hwirqs(&phb->msi_bmp, num); - - if (hwirq < 0) { - dev_warn(&dev->dev, "Failed to find a free MSI\n"); - return -ENOSPC; - } - - return phb->msi_base + hwirq; -} -EXPORT_SYMBOL(pnv_cxl_alloc_hwirqs); - -void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - - msi_bitmap_free_hwirqs(&phb->msi_bmp, hwirq - phb->msi_base, num); -} -EXPORT_SYMBOL(pnv_cxl_release_hwirqs); - -void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs, - struct pci_dev *dev) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - int i, hwirq; - - for (i = 1; i < CXL_IRQ_RANGES; i++) { - if (!irqs->range[i]) - continue; - pr_devel("cxl release irq range 0x%x: offset: 0x%lx limit: %ld\n", - i, irqs->offset[i], - irqs->range[i]); - hwirq = irqs->offset[i] - phb->msi_base; - msi_bitmap_free_hwirqs(&phb->msi_bmp, hwirq, - irqs->range[i]); - } -} -EXPORT_SYMBOL(pnv_cxl_release_hwirq_ranges); - -int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs, - struct pci_dev *dev, int num) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - int i, hwirq, try; - - memset(irqs, 0, sizeof(struct cxl_irq_ranges)); - - /* 0 is reserved for the multiplexed PSL DSI interrupt */ - for (i = 1; i < CXL_IRQ_RANGES && num; i++) { - try = num; - while (try) { - hwirq = msi_bitmap_alloc_hwirqs(&phb->msi_bmp, try); - if (hwirq >= 0) - break; - try /= 2; - } - if (!try) - goto fail; - - irqs->offset[i] = phb->msi_base + hwirq; - irqs->range[i] = try; - pr_devel("cxl alloc irq range 0x%x: offset: 0x%lx limit: %li\n", - i, irqs->offset[i], irqs->range[i]); - num -= try; - } - if (num) - goto fail; - - return 0; -fail: - pnv_cxl_release_hwirq_ranges(irqs, dev); - return -ENOSPC; -} -EXPORT_SYMBOL(pnv_cxl_alloc_hwirq_ranges); - -int pnv_cxl_get_irq_count(struct pci_dev *dev) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - - return phb->msi_bmp.irq_count; -} -EXPORT_SYMBOL(pnv_cxl_get_irq_count); - -int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq, - unsigned int virq) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - unsigned int xive_num = hwirq - phb->msi_base; - struct pnv_ioda_pe *pe; - int rc; - - if (!(pe = pnv_ioda_get_pe(dev))) - return -ENODEV; - - /* Assign XIVE to PE */ - rc = opal_pci_set_xive_pe(phb->opal_id, pe->pe_number, xive_num); - if (rc) { - pe_warn(pe, "%s: OPAL error %d setting msi_base 0x%x " - "hwirq 0x%x XIVE 0x%x PE\n", - pci_name(dev), rc, phb->msi_base, hwirq, xive_num); - return -EIO; - } - set_msi_irq_chip(phb, virq); - - return 0; -} -EXPORT_SYMBOL(pnv_cxl_ioda_msi_setup); -#endif - static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev, unsigned int hwirq, unsigned int virq, unsigned int is_64, struct msi_msg *msg) @@ -2976,7 +2797,7 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev, } msg->data = be32_to_cpu(data); - set_msi_irq_chip(phb, virq); + pnv_set_msi_irq_chip(phb, virq); pr_devel("%s: %s-bit MSI on hwirq %x (xive #%d)," " address=%x_%08x data=%x PE# %d\n", @@ -3197,41 +3018,6 @@ static void pnv_ioda_setup_pe_seg(struct pnv_ioda_pe *pe) } } -static void pnv_pci_ioda_setup_seg(void) -{ - struct pci_controller *tmp, *hose; - struct pnv_phb *phb; - struct pnv_ioda_pe *pe; - - list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { - phb = hose->private_data; - - /* NPU PHB does not support IO or MMIO segmentation */ - if (phb->type == PNV_PHB_NPU) - continue; - - list_for_each_entry(pe, &phb->ioda.pe_list, list) { - pnv_ioda_setup_pe_seg(pe); - } - } -} - -static void pnv_pci_ioda_setup_DMA(void) -{ - struct pci_controller *hose, *tmp; - struct pnv_phb *phb; - - list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { - pnv_ioda_setup_dma(hose->private_data); - - /* Mark the PHB initialization done */ - phb = hose->private_data; - phb->initialized = 1; - } - - pnv_pci_ioda_setup_iommu_api(); -} - static void pnv_pci_ioda_create_dbgfs(void) { #ifdef CONFIG_DEBUG_FS @@ -3242,6 +3028,9 @@ static void pnv_pci_ioda_create_dbgfs(void) list_for_each_entry_safe(hose, tmp, &hose_list, list_node) { phb = hose->private_data; + /* Notify initialization of PHB done */ + phb->initialized = 1; + sprintf(name, "PCI%04x", hose->global_number); phb->dbgfs = debugfs_create_dir(name, powerpc_debugfs_root); if (!phb->dbgfs) @@ -3254,9 +3043,7 @@ static void pnv_pci_ioda_create_dbgfs(void) static void pnv_pci_ioda_fixup(void) { pnv_pci_ioda_setup_PEs(); - pnv_pci_ioda_setup_seg(); - pnv_pci_ioda_setup_DMA(); - + pnv_pci_ioda_setup_iommu_api(); pnv_pci_ioda_create_dbgfs(); #ifdef CONFIG_EEH @@ -3306,6 +3093,115 @@ static resource_size_t pnv_pci_window_alignment(struct pci_bus *bus, return phb->ioda.io_segsize; } +/* + * We are updating root port or the upstream port of the + * bridge behind the root port with PHB's windows in order + * to accommodate the changes on required resources during + * PCI (slot) hotplug, which is connected to either root + * port or the downstream ports of PCIe switch behind the + * root port. + */ +static void pnv_pci_fixup_bridge_resources(struct pci_bus *bus, + unsigned long type) +{ + struct pci_controller *hose = pci_bus_to_host(bus); + struct pnv_phb *phb = hose->private_data; + struct pci_dev *bridge = bus->self; + struct resource *r, *w; + bool msi_region = false; + int i; + + /* Check if we need apply fixup to the bridge's windows */ + if (!pci_is_root_bus(bridge->bus) && + !pci_is_root_bus(bridge->bus->self->bus)) + return; + + /* Fixup the resources */ + for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; i++) { + r = &bridge->resource[PCI_BRIDGE_RESOURCES + i]; + if (!r->flags || !r->parent) + continue; + + w = NULL; + if (r->flags & type & IORESOURCE_IO) + w = &hose->io_resource; + else if (pnv_pci_is_mem_pref_64(r->flags) && + (type & IORESOURCE_PREFETCH) && + phb->ioda.m64_segsize) + w = &hose->mem_resources[1]; + else if (r->flags & type & IORESOURCE_MEM) { + w = &hose->mem_resources[0]; + msi_region = true; + } + + r->start = w->start; + r->end = w->end; + + /* The 64KB 32-bits MSI region shouldn't be included in + * the 32-bits bridge window. Otherwise, we can see strange + * issues. One of them is EEH error observed on Garrison. + * + * Exclude top 1MB region which is the minimal alignment of + * 32-bits bridge window. + */ + if (msi_region) { + r->end += 0x10000; + r->end -= 0x100000; + } + } +} + +static void pnv_pci_setup_bridge(struct pci_bus *bus, unsigned long type) +{ + struct pci_controller *hose = pci_bus_to_host(bus); + struct pnv_phb *phb = hose->private_data; + struct pci_dev *bridge = bus->self; + struct pnv_ioda_pe *pe; + bool all = (pci_pcie_type(bridge) == PCI_EXP_TYPE_PCI_BRIDGE); + + /* Extend bridge's windows if necessary */ + pnv_pci_fixup_bridge_resources(bus, type); + + /* The PE for root bus should be realized before any one else */ + if (!phb->ioda.root_pe_populated) { + pe = pnv_ioda_setup_bus_PE(phb->hose->bus, false); + if (pe) { + phb->ioda.root_pe_idx = pe->pe_number; + phb->ioda.root_pe_populated = true; + } + } + + /* Don't assign PE to PCI bus, which doesn't have subordinate devices */ + if (list_empty(&bus->devices)) + return; + + /* Reserve PEs according to used M64 resources */ + if (phb->reserve_m64_pe) + phb->reserve_m64_pe(bus, NULL, all); + + /* + * Assign PE. We might run here because of partial hotplug. + * For the case, we just pick up the existing PE and should + * not allocate resources again. + */ + pe = pnv_ioda_setup_bus_PE(bus, all); + if (!pe) + return; + + pnv_ioda_setup_pe_seg(pe); + switch (phb->type) { + case PNV_PHB_IODA1: + pnv_pci_ioda1_setup_dma_pe(phb, pe); + break; + case PNV_PHB_IODA2: + pnv_pci_ioda2_setup_dma_pe(phb, pe); + break; + default: + pr_warn("%s: No DMA for PHB#%d (type %d)\n", + __func__, phb->hose->global_number, phb->type); + } +} + #ifdef CONFIG_PCI_IOV static resource_size_t pnv_pci_iov_resource_alignment(struct pci_dev *pdev, int resno) @@ -3345,7 +3241,7 @@ static resource_size_t pnv_pci_iov_resource_alignment(struct pci_dev *pdev, /* Prevent enabling devices for which we couldn't properly * assign a PE */ -static bool pnv_pci_enable_device_hook(struct pci_dev *dev) +bool pnv_pci_enable_device_hook(struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); struct pnv_phb *phb = hose->private_data; @@ -3366,6 +3262,178 @@ static bool pnv_pci_enable_device_hook(struct pci_dev *dev) return true; } +static long pnv_pci_ioda1_unset_window(struct iommu_table_group *table_group, + int num) +{ + struct pnv_ioda_pe *pe = container_of(table_group, + struct pnv_ioda_pe, table_group); + struct pnv_phb *phb = pe->phb; + unsigned int idx; + long rc; + + pe_info(pe, "Removing DMA window #%d\n", num); + for (idx = 0; idx < phb->ioda.dma32_count; idx++) { + if (phb->ioda.dma32_segmap[idx] != pe->pe_number) + continue; + + rc = opal_pci_map_pe_dma_window(phb->opal_id, pe->pe_number, + idx, 0, 0ul, 0ul, 0ul); + if (rc != OPAL_SUCCESS) { + pe_warn(pe, "Failure %ld unmapping DMA32 segment#%d\n", + rc, idx); + return rc; + } + + phb->ioda.dma32_segmap[idx] = IODA_INVALID_PE; + } + + pnv_pci_unlink_table_and_group(table_group->tables[num], table_group); + return OPAL_SUCCESS; +} + +static void pnv_pci_ioda1_release_pe_dma(struct pnv_ioda_pe *pe) +{ + unsigned int weight = pnv_pci_ioda_pe_dma_weight(pe); + struct iommu_table *tbl = pe->table_group.tables[0]; + int64_t rc; + + if (!weight) + return; + + rc = pnv_pci_ioda1_unset_window(&pe->table_group, 0); + if (rc != OPAL_SUCCESS) + return; + + pnv_pci_p7ioc_tce_invalidate(tbl, tbl->it_offset, tbl->it_size, false); + if (pe->table_group.group) { + iommu_group_put(pe->table_group.group); + WARN_ON(pe->table_group.group); + } + + free_pages(tbl->it_base, get_order(tbl->it_size << 3)); + iommu_free_table(tbl, "pnv"); +} + +static void pnv_pci_ioda2_release_pe_dma(struct pnv_ioda_pe *pe) +{ + struct iommu_table *tbl = pe->table_group.tables[0]; + unsigned int weight = pnv_pci_ioda_pe_dma_weight(pe); +#ifdef CONFIG_IOMMU_API + int64_t rc; +#endif + + if (!weight) + return; + +#ifdef CONFIG_IOMMU_API + rc = pnv_pci_ioda2_unset_window(&pe->table_group, 0); + if (rc) + pe_warn(pe, "OPAL error %ld release DMA window\n", rc); +#endif + + pnv_pci_ioda2_set_bypass(pe, false); + if (pe->table_group.group) { + iommu_group_put(pe->table_group.group); + WARN_ON(pe->table_group.group); + } + + pnv_pci_ioda2_table_free_pages(tbl); + iommu_free_table(tbl, "pnv"); +} + +static void pnv_ioda_free_pe_seg(struct pnv_ioda_pe *pe, + unsigned short win, + unsigned int *map) +{ + struct pnv_phb *phb = pe->phb; + int idx; + int64_t rc; + + for (idx = 0; idx < phb->ioda.total_pe_num; idx++) { + if (map[idx] != pe->pe_number) + continue; + + if (win == OPAL_M64_WINDOW_TYPE) + rc = opal_pci_map_pe_mmio_window(phb->opal_id, + phb->ioda.reserved_pe_idx, win, + idx / PNV_IODA1_M64_SEGS, + idx % PNV_IODA1_M64_SEGS); + else + rc = opal_pci_map_pe_mmio_window(phb->opal_id, + phb->ioda.reserved_pe_idx, win, 0, idx); + + if (rc != OPAL_SUCCESS) + pe_warn(pe, "Error %ld unmapping (%d) segment#%d\n", + rc, win, idx); + + map[idx] = IODA_INVALID_PE; + } +} + +static void pnv_ioda_release_pe_seg(struct pnv_ioda_pe *pe) +{ + struct pnv_phb *phb = pe->phb; + + if (phb->type == PNV_PHB_IODA1) { + pnv_ioda_free_pe_seg(pe, OPAL_IO_WINDOW_TYPE, + phb->ioda.io_segmap); + pnv_ioda_free_pe_seg(pe, OPAL_M32_WINDOW_TYPE, + phb->ioda.m32_segmap); + pnv_ioda_free_pe_seg(pe, OPAL_M64_WINDOW_TYPE, + phb->ioda.m64_segmap); + } else if (phb->type == PNV_PHB_IODA2) { + pnv_ioda_free_pe_seg(pe, OPAL_M32_WINDOW_TYPE, + phb->ioda.m32_segmap); + } +} + +static void pnv_ioda_release_pe(struct pnv_ioda_pe *pe) +{ + struct pnv_phb *phb = pe->phb; + struct pnv_ioda_pe *slave, *tmp; + + /* Release slave PEs in compound PE */ + if (pe->flags & PNV_IODA_PE_MASTER) { + list_for_each_entry_safe(slave, tmp, &pe->slaves, list) + pnv_ioda_release_pe(slave); + } + + list_del(&pe->list); + switch (phb->type) { + case PNV_PHB_IODA1: + pnv_pci_ioda1_release_pe_dma(pe); + break; + case PNV_PHB_IODA2: + pnv_pci_ioda2_release_pe_dma(pe); + break; + default: + WARN_ON(1); + } + + pnv_ioda_release_pe_seg(pe); + pnv_ioda_deconfigure_pe(pe->phb, pe); + pnv_ioda_free_pe(pe); +} + +static void pnv_pci_release_device(struct pci_dev *pdev) +{ + struct pci_controller *hose = pci_bus_to_host(pdev->bus); + struct pnv_phb *phb = hose->private_data; + struct pci_dn *pdn = pci_get_pdn(pdev); + struct pnv_ioda_pe *pe; + + if (pdev->is_virtfn) + return; + + if (!pdn || pdn->pe_number == IODA_INVALID_PE) + return; + + pe = &phb->ioda.pe_array[pdn->pe_number]; + WARN_ON(--pe->device_count < 0); + if (pe->device_count == 0) + pnv_ioda_release_pe(pe); +} + static void pnv_pci_ioda_shutdown(struct pci_controller *hose) { struct pnv_phb *phb = hose->private_data; @@ -3382,7 +3450,9 @@ static const struct pci_controller_ops pnv_pci_ioda_controller_ops = { .teardown_msi_irqs = pnv_teardown_msi_irqs, #endif .enable_device_hook = pnv_pci_enable_device_hook, + .release_device = pnv_pci_release_device, .window_alignment = pnv_pci_window_alignment, + .setup_bridge = pnv_pci_setup_bridge, .reset_secondary_bus = pnv_pci_reset_secondary_bus, .dma_set_mask = pnv_pci_ioda_dma_set_mask, .dma_get_required_mask = pnv_pci_ioda_dma_get_required_mask, @@ -3410,6 +3480,26 @@ static const struct pci_controller_ops pnv_npu_ioda_controller_ops = { .shutdown = pnv_pci_ioda_shutdown, }; +#ifdef CONFIG_CXL_BASE +const struct pci_controller_ops pnv_cxl_cx4_ioda_controller_ops = { + .dma_dev_setup = pnv_pci_dma_dev_setup, + .dma_bus_setup = pnv_pci_dma_bus_setup, +#ifdef CONFIG_PCI_MSI + .setup_msi_irqs = pnv_cxl_cx4_setup_msi_irqs, + .teardown_msi_irqs = pnv_cxl_cx4_teardown_msi_irqs, +#endif + .enable_device_hook = pnv_cxl_enable_device_hook, + .disable_device = pnv_cxl_disable_device, + .release_device = pnv_pci_release_device, + .window_alignment = pnv_pci_window_alignment, + .setup_bridge = pnv_pci_setup_bridge, + .reset_secondary_bus = pnv_pci_reset_secondary_bus, + .dma_set_mask = pnv_pci_ioda_dma_set_mask, + .dma_get_required_mask = pnv_pci_ioda_dma_get_required_mask, + .shutdown = pnv_pci_ioda_shutdown, +}; +#endif + static void __init pnv_pci_init_ioda_phb(struct device_node *np, u64 hub_id, int ioda_type) { @@ -3417,6 +3507,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np, struct pnv_phb *phb; unsigned long size, m64map_off, m32map_off, pemap_off; unsigned long iomap_off = 0, dma32map_off = 0; + struct resource r; const __be64 *prop64; const __be32 *prop32; int len; @@ -3425,7 +3516,11 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np, void *aux; long rc; - pr_info("Initializing IODA%d OPAL PHB %s\n", ioda_type, np->full_name); + if (!of_device_is_available(np)) + return; + + pr_info("Initializing %s PHB (%s)\n", + pnv_phb_names[ioda_type], of_node_full_name(np)); prop64 = of_get_property(np, "ibm,opal-phbid", NULL); if (!prop64) { @@ -3476,9 +3571,12 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np, pci_process_bridge_OF_ranges(hose, np, !hose->global_number); /* Get registers */ - phb->regs = of_iomap(np, 0); - if (phb->regs == NULL) - pr_err(" Failed to map registers !\n"); + if (!of_address_to_resource(np, 0, &r)) { + phb->regs_phys = r.start; + phb->regs = ioremap(r.start, resource_size(&r)); + if (phb->regs == NULL) + pr_err(" Failed to map registers !\n"); + } /* Initialize more IODA stuff */ phb->ioda.total_pe_num = 1; @@ -3489,6 +3587,10 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np, if (prop32) phb->ioda.reserved_pe_idx = be32_to_cpup(prop32); + /* Invalidate RID to PE# mapping */ + for (segno = 0; segno < ARRAY_SIZE(phb->ioda.pe_rmap); segno++) + phb->ioda.pe_rmap[segno] = IODA_INVALID_PE; + /* Parse 64-bit MMIO range */ pnv_ioda_parse_m64_window(phb); @@ -3540,7 +3642,22 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np, phb->ioda.dma32_segmap[segno] = IODA_INVALID_PE; } phb->ioda.pe_array = aux + pemap_off; - set_bit(phb->ioda.reserved_pe_idx, phb->ioda.pe_alloc); + + /* + * Choose PE number for root bus, which shouldn't have + * M64 resources consumed by its child devices. To pick + * the PE number adjacent to the reserved one if possible. + */ + pnv_ioda_reserve_pe(phb, phb->ioda.reserved_pe_idx); + if (phb->ioda.reserved_pe_idx == 0) { + phb->ioda.root_pe_idx = 1; + pnv_ioda_reserve_pe(phb, phb->ioda.root_pe_idx); + } else if (phb->ioda.reserved_pe_idx == (phb->ioda.total_pe_num - 1)) { + phb->ioda.root_pe_idx = phb->ioda.reserved_pe_idx - 1; + pnv_ioda_reserve_pe(phb, phb->ioda.root_pe_idx); + } else { + phb->ioda.root_pe_idx = IODA_INVALID_PE; + } INIT_LIST_HEAD(&phb->ioda.pe_list); mutex_init(&phb->ioda.pe_list_mutex); diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c index 1d92bd93bcd9..6701dd5ded20 100644 --- a/arch/powerpc/platforms/powernv/pci.c +++ b/arch/powerpc/platforms/powernv/pci.c @@ -26,6 +26,7 @@ #include <asm/machdep.h> #include <asm/msi_bitmap.h> #include <asm/ppc-pci.h> +#include <asm/pnv-pci.h> #include <asm/opal.h> #include <asm/iommu.h> #include <asm/tce.h> @@ -36,8 +37,124 @@ #include "powernv.h" #include "pci.h" -/* Delay in usec */ -#define PCI_RESET_DELAY_US 3000000 +int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id) +{ + struct device_node *parent = np; + u32 bdfn; + u64 phbid; + int ret; + + ret = of_property_read_u32(np, "reg", &bdfn); + if (ret) + return -ENXIO; + + bdfn = ((bdfn & 0x00ffff00) >> 8); + while ((parent = of_get_parent(parent))) { + if (!PCI_DN(parent)) { + of_node_put(parent); + break; + } + + if (!of_device_is_compatible(parent, "ibm,ioda2-phb")) { + of_node_put(parent); + continue; + } + + ret = of_property_read_u64(parent, "ibm,opal-phbid", &phbid); + if (ret) { + of_node_put(parent); + return -ENXIO; + } + + *id = PCI_SLOT_ID(phbid, bdfn); + return 0; + } + + return -ENODEV; +} +EXPORT_SYMBOL_GPL(pnv_pci_get_slot_id); + +int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len) +{ + int64_t rc; + + if (!opal_check_token(OPAL_GET_DEVICE_TREE)) + return -ENXIO; + + rc = opal_get_device_tree(phandle, (uint64_t)buf, len); + if (rc < OPAL_SUCCESS) + return -EIO; + + return rc; +} +EXPORT_SYMBOL_GPL(pnv_pci_get_device_tree); + +int pnv_pci_get_presence_state(uint64_t id, uint8_t *state) +{ + int64_t rc; + + if (!opal_check_token(OPAL_PCI_GET_PRESENCE_STATE)) + return -ENXIO; + + rc = opal_pci_get_presence_state(id, (uint64_t)state); + if (rc != OPAL_SUCCESS) + return -EIO; + + return 0; +} +EXPORT_SYMBOL_GPL(pnv_pci_get_presence_state); + +int pnv_pci_get_power_state(uint64_t id, uint8_t *state) +{ + int64_t rc; + + if (!opal_check_token(OPAL_PCI_GET_POWER_STATE)) + return -ENXIO; + + rc = opal_pci_get_power_state(id, (uint64_t)state); + if (rc != OPAL_SUCCESS) + return -EIO; + + return 0; +} +EXPORT_SYMBOL_GPL(pnv_pci_get_power_state); + +int pnv_pci_set_power_state(uint64_t id, uint8_t state, struct opal_msg *msg) +{ + struct opal_msg m; + int token, ret; + int64_t rc; + + if (!opal_check_token(OPAL_PCI_SET_POWER_STATE)) + return -ENXIO; + + token = opal_async_get_token_interruptible(); + if (unlikely(token < 0)) + return token; + + rc = opal_pci_set_power_state(token, id, (uint64_t)&state); + if (rc == OPAL_SUCCESS) { + ret = 0; + goto exit; + } else if (rc != OPAL_ASYNC_COMPLETION) { + ret = -EIO; + goto exit; + } + + ret = opal_async_wait_response(token, &m); + if (ret < 0) + goto exit; + + if (msg) { + ret = 1; + memcpy(msg, &m, sizeof(m)); + } + +exit: + opal_async_release_token(token); + return ret; +} +EXPORT_SYMBOL_GPL(pnv_pci_set_power_state); #ifdef CONFIG_PCI_MSI int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) @@ -620,8 +737,8 @@ int pnv_tce_xchg(struct iommu_table *tbl, long index, if (newtce & TCE_PCI_WRITE) newtce |= TCE_PCI_READ; - oldtce = xchg(pnv_tce(tbl, idx), cpu_to_be64(newtce)); - *hpa = be64_to_cpu(oldtce) & ~(TCE_PCI_READ | TCE_PCI_WRITE); + oldtce = be64_to_cpu(xchg(pnv_tce(tbl, idx), cpu_to_be64(newtce))); + *hpa = oldtce & ~(TCE_PCI_READ | TCE_PCI_WRITE); *direction = iommu_tce_direction(oldtce); return 0; @@ -815,13 +932,14 @@ void __init pnv_pci_init(void) for_each_compatible_node(np, NULL, "ibm,ioda2-phb") pnv_pci_init_ioda2_phb(np); + /* Look for ioda3 built-in PHB4's, we treat them as IODA2 */ + for_each_compatible_node(np, NULL, "ibm,ioda3-phb") + pnv_pci_init_ioda2_phb(np); + /* Look for NPU PHBs */ for_each_compatible_node(np, NULL, "ibm,ioda2-npu-phb") pnv_pci_init_npu_phb(np); - /* Setup the linkage between OF nodes and PHBs */ - pci_devs_phb_init(); - /* Configure IOMMU DMA hooks */ set_pci_dma_ops(&dma_iommu_ops); } diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index 7dee25e304db..d088d4f06116 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -1,6 +1,10 @@ #ifndef __POWERNV_PCI_H #define __POWERNV_PCI_H +#include <linux/iommu.h> +#include <asm/iommu.h> +#include <asm/msi_bitmap.h> + struct pci_dn; enum pnv_phb_type { @@ -30,6 +34,7 @@ struct pnv_phb; struct pnv_ioda_pe { unsigned long flags; struct pnv_phb *phb; + int device_count; /* A PE can be associated with a single device or an * entire bus (& children). In the former case, pdev @@ -71,6 +76,7 @@ struct pnv_ioda_pe { }; #define PNV_PHB_FLAG_EEH (1 << 0) +#define PNV_PHB_FLAG_CXL (1 << 1) /* Real PHB supporting the cxl kernel API */ struct pnv_phb { struct pci_controller *hose; @@ -80,6 +86,7 @@ struct pnv_phb { u64 opal_id; int flags; void __iomem *regs; + u64 regs_phys; int initialized; spinlock_t lock; @@ -110,6 +117,8 @@ struct pnv_phb { /* Global bridge info */ unsigned int total_pe_num; unsigned int reserved_pe_idx; + unsigned int root_pe_idx; + bool root_pe_populated; /* 32-bit MMIO window */ unsigned int m32_size; @@ -152,17 +161,8 @@ struct pnv_phb { struct list_head pe_list; struct mutex pe_list_mutex; - /* Reverse map of PEs, will have to extend if - * we are to support more than 256 PEs, indexed - * bus { bus, devfn } - */ - unsigned char pe_rmap[0x10000]; - - /* TCE cache invalidate registers (physical and - * remapped) - */ - phys_addr_t tce_inval_reg_phys; - __be64 __iomem *tce_inval_reg; + /* Reverse map of PEs, indexed by {bus, devfn} */ + unsigned int pe_rmap[0x10000]; } ioda; /* PHB and hub status structure */ @@ -173,6 +173,9 @@ struct pnv_phb { struct OpalIoP7IOCErrorData hub_diag; } diag; +#ifdef CONFIG_CXL_BASE + struct cxl_afu *cxl_afu; +#endif }; extern struct pci_ops pnv_pci_ops; @@ -203,8 +206,6 @@ extern void pnv_pci_setup_iommu_table(struct iommu_table *tbl, extern void pnv_pci_init_ioda_hub(struct device_node *np); extern void pnv_pci_init_ioda2_phb(struct device_node *np); extern void pnv_pci_init_npu_phb(struct device_node *np); -extern void pnv_pci_ioda_tce_invalidate(struct iommu_table *tbl, - __be64 *startp, __be64 *endp, bool rm); extern void pnv_pci_reset_secondary_bus(struct pci_dev *dev); extern int pnv_eeh_phb_reset(struct pci_controller *hose, int option); @@ -212,6 +213,9 @@ extern void pnv_pci_dma_dev_setup(struct pci_dev *pdev); extern void pnv_pci_dma_bus_setup(struct pci_bus *bus); extern int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type); extern void pnv_teardown_msi_irqs(struct pci_dev *pdev); +extern struct pnv_ioda_pe *pnv_ioda_get_pe(struct pci_dev *dev); +extern void pnv_set_msi_irq_chip(struct pnv_phb *phb, unsigned int virq); +extern bool pnv_pci_enable_device_hook(struct pci_dev *dev); extern void pe_level_printk(const struct pnv_ioda_pe *pe, const char *level, const char *fmt, ...); @@ -224,7 +228,7 @@ extern void pe_level_printk(const struct pnv_ioda_pe *pe, const char *level, /* Nvlink functions */ extern void pnv_npu_try_dma_set_bypass(struct pci_dev *gpdev, bool bypass); -extern void pnv_pci_ioda2_tce_invalidate_entire(struct pnv_phb *phb, bool rm); +extern void pnv_pci_phb3_tce_invalidate_entire(struct pnv_phb *phb, bool rm); extern struct pnv_ioda_pe *pnv_pci_npu_setup_iommu(struct pnv_ioda_pe *npe); extern long pnv_npu_set_window(struct pnv_ioda_pe *npe, int num, struct iommu_table *tbl); @@ -232,4 +236,15 @@ extern long pnv_npu_unset_window(struct pnv_ioda_pe *npe, int num); extern void pnv_npu_take_ownership(struct pnv_ioda_pe *npe); extern void pnv_npu_release_ownership(struct pnv_ioda_pe *npe); + +/* cxl functions */ +extern bool pnv_cxl_enable_device_hook(struct pci_dev *dev); +extern void pnv_cxl_disable_device(struct pci_dev *dev); +extern int pnv_cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type); +extern void pnv_cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev); + + +/* phb ops (cxl switches these when enabling the kernel api on the phb) */ +extern const struct pci_controller_ops pnv_cxl_cx4_ioda_controller_ops; + #endif /* __POWERNV_PCI_H */ diff --git a/arch/powerpc/platforms/powernv/powernv.h b/arch/powerpc/platforms/powernv/powernv.h index 6dbc0a1da1f6..da7c843ac7f1 100644 --- a/arch/powerpc/platforms/powernv/powernv.h +++ b/arch/powerpc/platforms/powernv/powernv.h @@ -18,6 +18,7 @@ static inline void pnv_pci_shutdown(void) { } #endif extern u32 pnv_get_supported_cpuidle_states(void); +extern u64 pnv_deepest_stop_state; extern void pnv_lpc_init(void); diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index ee6430bedcc3..efe8b6bb168b 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -58,7 +58,7 @@ static void __init pnv_setup_arch(void) /* XXX PMCS */ } -static void __init pnv_init_early(void) +static void __init pnv_init(void) { /* * Initialize the LPC bus now so that legacy serial @@ -268,21 +268,16 @@ static void __init pnv_setup_machdep_opal(void) static int __init pnv_probe(void) { - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "ibm,powernv")) + if (!of_machine_is_compatible("ibm,powernv")) return 0; - if (IS_ENABLED(CONFIG_PPC_RADIX_MMU) && radix_enabled()) - radix_init_native(); - else if (IS_ENABLED(CONFIG_PPC_STD_MMU_64)) - hpte_init_native(); - if (firmware_has_feature(FW_FEATURE_OPAL)) pnv_setup_machdep_opal(); pr_debug("PowerNV detected !\n"); + pnv_init(); + return 1; } @@ -308,14 +303,13 @@ static unsigned long pnv_get_proc_freq(unsigned int cpu) define_machine(powernv) { .name = "PowerNV", .probe = pnv_probe, - .init_early = pnv_init_early, .setup_arch = pnv_setup_arch, .init_IRQ = pnv_init_IRQ, .show_cpuinfo = pnv_show_cpuinfo, .get_proc_freq = pnv_get_proc_freq, .progress = pnv_progress, .machine_shutdown = pnv_shutdown, - .power_save = power7_idle, + .power_save = NULL, .calibrate_decr = generic_calibrate_decr, #ifdef CONFIG_KEXEC .kexec_cpu_down = pnv_kexec_cpu_down, diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c index ad7b1a3dbed0..c789258ae1e1 100644 --- a/arch/powerpc/platforms/powernv/smp.c +++ b/arch/powerpc/platforms/powernv/smp.c @@ -182,7 +182,9 @@ static void pnv_smp_cpu_kill_self(void) ppc64_runlatch_off(); - if (idle_states & OPAL_PM_WINKLE_ENABLED) + if (cpu_has_feature(CPU_FTR_ARCH_300)) + srr1 = power9_idle_stop(pnv_deepest_stop_state); + else if (idle_states & OPAL_PM_WINKLE_ENABLED) srr1 = power7_winkle(); else if ((idle_states & OPAL_PM_SLEEP_ENABLED) || (idle_states & OPAL_PM_SLEEP_ENABLED_ER1)) diff --git a/arch/powerpc/platforms/ps3/htab.c b/arch/powerpc/platforms/ps3/htab.c index c9a3e677192a..cb3c50328de8 100644 --- a/arch/powerpc/platforms/ps3/htab.c +++ b/arch/powerpc/platforms/ps3/htab.c @@ -195,12 +195,12 @@ static void ps3_hpte_clear(void) void __init ps3_hpte_init(unsigned long htab_size) { - ppc_md.hpte_invalidate = ps3_hpte_invalidate; - ppc_md.hpte_updatepp = ps3_hpte_updatepp; - ppc_md.hpte_updateboltedpp = ps3_hpte_updateboltedpp; - ppc_md.hpte_insert = ps3_hpte_insert; - ppc_md.hpte_remove = ps3_hpte_remove; - ppc_md.hpte_clear_all = ps3_hpte_clear; + mmu_hash_ops.hpte_invalidate = ps3_hpte_invalidate; + mmu_hash_ops.hpte_updatepp = ps3_hpte_updatepp; + mmu_hash_ops.hpte_updateboltedpp = ps3_hpte_updateboltedpp; + mmu_hash_ops.hpte_insert = ps3_hpte_insert; + mmu_hash_ops.hpte_remove = ps3_hpte_remove; + mmu_hash_ops.hpte_clear_all = ps3_hpte_clear; ppc64_pft_size = __ilog2(htab_size); } diff --git a/arch/powerpc/platforms/ps3/repository.c b/arch/powerpc/platforms/ps3/repository.c index bfccdc7cb85f..814a7eaa7769 100644 --- a/arch/powerpc/platforms/ps3/repository.c +++ b/arch/powerpc/platforms/ps3/repository.c @@ -1198,7 +1198,7 @@ int ps3_repository_delete_highmem_info(unsigned int region_index) return result ? -1 : 0; } -#endif /* defined(CONFIG_PS3_WRITE_REPOSITORY) */ +#endif /* defined(CONFIG_PS3_REPOSITORY_WRITE) */ #if defined(DEBUG) diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c index 799c8580ab09..3a487e7f4a5e 100644 --- a/arch/powerpc/platforms/ps3/setup.c +++ b/arch/powerpc/platforms/ps3/setup.c @@ -80,7 +80,7 @@ static void ps3_power_save(void) lv1_pause(0); } -static void ps3_restart(char *cmd) +static void __noreturn ps3_restart(char *cmd) { DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd); @@ -96,7 +96,7 @@ static void ps3_power_off(void) ps3_sys_manager_power_off(); /* never returns */ } -static void ps3_halt(void) +static void __noreturn ps3_halt(void) { DBG("%s:%d\n", __func__, __LINE__); @@ -226,23 +226,24 @@ static void __init ps3_progress(char *s, unsigned short hex) printk("*** %04x : %s\n", hex, s ? s : ""); } -static int __init ps3_probe(void) +void __init ps3_early_mm_init(void) { unsigned long htab_size; - unsigned long dt_root; + ps3_mm_init(); + ps3_mm_vas_create(&htab_size); + ps3_hpte_init(htab_size); +} + +static int __init ps3_probe(void) +{ DBG(" -> %s:%d\n", __func__, __LINE__); - dt_root = of_get_flat_dt_root(); - if (!of_flat_dt_is_compatible(dt_root, "sony,ps3")) + if (!of_machine_is_compatible("sony,ps3")) return 0; - powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE; - ps3_os_area_save_params(); - ps3_mm_init(); - ps3_mm_vas_create(&htab_size); - ps3_hpte_init(htab_size); + pm_power_off = ps3_power_off; DBG(" <- %s:%d\n", __func__, __LINE__); diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c index fc44ad0475f8..66e7227469b8 100644 --- a/arch/powerpc/platforms/pseries/cmm.c +++ b/arch/powerpc/platforms/pseries/cmm.c @@ -574,7 +574,7 @@ static int cmm_mem_going_offline(void *arg) cmm_dbg("Failed to allocate memory for list " "management. Memory hotplug " "failed.\n"); - return ENOMEM; + return -ENOMEM; } memcpy(npa, pa_curr, PAGE_SIZE); if (pa_curr == cmm_page_list) diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c index 2b93ae8d557a..4748124faa10 100644 --- a/arch/powerpc/platforms/pseries/dlpar.c +++ b/arch/powerpc/platforms/pseries/dlpar.c @@ -27,6 +27,15 @@ #include <asm/uaccess.h> #include <asm/rtas.h> +struct workqueue_struct *pseries_hp_wq; + +struct pseries_hp_work { + struct work_struct work; + struct pseries_hp_errorlog *errlog; + struct completion *hp_completion; + int *rc; +}; + struct cc_workarea { __be32 drc_index; __be32 zero; @@ -368,10 +377,51 @@ static int handle_dlpar_errorlog(struct pseries_hp_errorlog *hp_elog) return rc; } +void pseries_hp_work_fn(struct work_struct *work) +{ + struct pseries_hp_work *hp_work = + container_of(work, struct pseries_hp_work, work); + + if (hp_work->rc) + *(hp_work->rc) = handle_dlpar_errorlog(hp_work->errlog); + else + handle_dlpar_errorlog(hp_work->errlog); + + if (hp_work->hp_completion) + complete(hp_work->hp_completion); + + kfree(hp_work->errlog); + kfree((void *)work); +} + +void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog, + struct completion *hotplug_done, int *rc) +{ + struct pseries_hp_work *work; + struct pseries_hp_errorlog *hp_errlog_copy; + + hp_errlog_copy = kmalloc(sizeof(struct pseries_hp_errorlog), + GFP_KERNEL); + memcpy(hp_errlog_copy, hp_errlog, sizeof(struct pseries_hp_errorlog)); + + work = kmalloc(sizeof(struct pseries_hp_work), GFP_KERNEL); + if (work) { + INIT_WORK((struct work_struct *)work, pseries_hp_work_fn); + work->errlog = hp_errlog_copy; + work->hp_completion = hotplug_done; + work->rc = rc; + queue_work(pseries_hp_wq, (struct work_struct *)work); + } else { + *rc = -ENOMEM; + complete(hotplug_done); + } +} + static ssize_t dlpar_store(struct class *class, struct class_attribute *attr, const char *buf, size_t count) { struct pseries_hp_errorlog *hp_elog; + struct completion hotplug_done; const char *arg; int rc; @@ -439,7 +489,9 @@ static ssize_t dlpar_store(struct class *class, struct class_attribute *attr, goto dlpar_store_out; } - rc = handle_dlpar_errorlog(hp_elog); + init_completion(&hotplug_done); + queue_hotplug_event(hp_elog, &hotplug_done, &rc); + wait_for_completion(&hotplug_done); dlpar_store_out: kfree(hp_elog); @@ -450,6 +502,8 @@ static CLASS_ATTR(dlpar, S_IWUSR, NULL, dlpar_store); static int __init pseries_dlpar_init(void) { + pseries_hp_wq = alloc_workqueue("pseries hotplug workqueue", + WQ_UNBOUND, 1); return sysfs_create_file(kernel_kobj, &class_attr_dlpar.attr); } machine_device_initcall(pseries, pseries_dlpar_init); diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c index 3998e0f9a03b..1c428f06b14c 100644 --- a/arch/powerpc/platforms/pseries/eeh_pseries.c +++ b/arch/powerpc/platforms/pseries/eeh_pseries.c @@ -2,7 +2,7 @@ * The file intends to implement the platform dependent EEH operations on pseries. * Actually, the pseries platform is built based on RTAS heavily. That means the * pseries platform dependent EEH operations will be built on RTAS calls. The functions - * are devired from arch/powerpc/platforms/pseries/eeh.c and necessary cleanup has + * are derived from arch/powerpc/platforms/pseries/eeh.c and necessary cleanup has * been done. * * Copyright Benjamin Herrenschmidt & Gavin Shan, IBM Corporation 2011. diff --git a/arch/powerpc/platforms/pseries/event_sources.c b/arch/powerpc/platforms/pseries/event_sources.c index 18380e8f6dfe..a6ddca833119 100644 --- a/arch/powerpc/platforms/pseries/event_sources.c +++ b/arch/powerpc/platforms/pseries/event_sources.c @@ -26,48 +26,21 @@ void request_event_sources_irqs(struct device_node *np, { int i, index, count = 0; struct of_phandle_args oirq; - const u32 *opicprop; - unsigned int opicplen; unsigned int virqs[16]; - /* Check for obsolete "open-pic-interrupt" property. If present, then - * map those interrupts using the default interrupt host and default - * trigger - */ - opicprop = of_get_property(np, "open-pic-interrupt", &opicplen); - if (opicprop) { - opicplen /= sizeof(u32); - for (i = 0; i < opicplen; i++) { - if (count > 15) - break; - virqs[count] = irq_create_mapping(NULL, *(opicprop++)); - if (virqs[count] == NO_IRQ) { - pr_err("event-sources: Unable to allocate " - "interrupt number for %s\n", - np->full_name); - WARN_ON(1); - } - else - count++; - - } - } - /* Else use normal interrupt tree parsing */ - else { - /* First try to do a proper OF tree parsing */ - for (index = 0; of_irq_parse_one(np, index, &oirq) == 0; - index++) { - if (count > 15) - break; - virqs[count] = irq_create_of_mapping(&oirq); - if (virqs[count] == NO_IRQ) { - pr_err("event-sources: Unable to allocate " - "interrupt number for %s\n", - np->full_name); - WARN_ON(1); - } - else - count++; + /* First try to do a proper OF tree parsing */ + for (index = 0; of_irq_parse_one(np, index, &oirq) == 0; + index++) { + if (count > 15) + break; + virqs[count] = irq_create_of_mapping(&oirq); + if (virqs[count] == NO_IRQ) { + pr_err("event-sources: Unable to allocate " + "interrupt number for %s\n", + np->full_name); + WARN_ON(1); + } else { + count++; } } diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c index 8c80588abacc..ea7f09bd73b1 100644 --- a/arch/powerpc/platforms/pseries/firmware.c +++ b/arch/powerpc/platforms/pseries/firmware.c @@ -22,6 +22,7 @@ */ +#include <linux/of_fdt.h> #include <asm/firmware.h> #include <asm/prom.h> #include <asm/udbg.h> @@ -69,7 +70,8 @@ hypertas_fw_features_table[] = { * device-tree/ibm,hypertas-functions. Ultimately this functionality may * be moved into prom.c prom_init(). */ -void __init fw_hypertas_feature_init(const char *hypertas, unsigned long len) +static void __init fw_hypertas_feature_init(const char *hypertas, + unsigned long len) { const char *s; int i; @@ -113,7 +115,7 @@ vec5_fw_features_table[] = { {FW_FEATURE_PRRN, OV5_PRRN}, }; -void __init fw_vec5_feature_init(const char *vec5, unsigned long len) +static void __init fw_vec5_feature_init(const char *vec5, unsigned long len) { unsigned int index, feat; int i; @@ -131,3 +133,45 @@ void __init fw_vec5_feature_init(const char *vec5, unsigned long len) pr_debug(" <- fw_vec5_feature_init()\n"); } + +/* + * Called very early, MMU is off, device-tree isn't unflattened + */ +static int __init probe_fw_features(unsigned long node, const char *uname, int + depth, void *data) +{ + const char *prop; + int len; + static int hypertas_found; + static int vec5_found; + + if (depth != 1) + return 0; + + if (!strcmp(uname, "rtas") || !strcmp(uname, "rtas@0")) { + prop = of_get_flat_dt_prop(node, "ibm,hypertas-functions", + &len); + if (prop) { + powerpc_firmware_features |= FW_FEATURE_LPAR; + fw_hypertas_feature_init(prop, len); + } + + hypertas_found = 1; + } + + if (!strcmp(uname, "chosen")) { + prop = of_get_flat_dt_prop(node, "ibm,architecture-vec-5", + &len); + if (prop) + fw_vec5_feature_init(prop, len); + + vec5_found = 1; + } + + return hypertas_found && vec5_found; +} + +void __init pseries_probe_fw_features(void) +{ + of_scan_flat_dt(probe_fw_features, NULL); +} diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c index 282837a1d74b..a1b63e00b2f7 100644 --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -903,8 +903,6 @@ static int parse_cede_parameters(void) static int __init pseries_cpu_hotplug_init(void) { - struct device_node *np; - const char *typep; int cpu; int qcss_tok; @@ -913,17 +911,6 @@ static int __init pseries_cpu_hotplug_init(void) ppc_md.cpu_release = dlpar_cpu_release; #endif /* CONFIG_ARCH_CPU_PROBE_RELEASE */ - for_each_node_by_name(np, "interrupt-controller") { - typep = of_get_property(np, "compatible", NULL); - if (strstr(typep, "open-pic")) { - of_node_put(np); - - printk(KERN_INFO "CPU Hotplug not supported on " - "systems using MPIC\n"); - return 0; - } - } - rtas_stop_self_token = rtas_token("stop-self"); qcss_tok = rtas_token("query-cpu-stopped-state"); diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c index 2ce138542083..43f7beb2902d 100644 --- a/arch/powerpc/platforms/pseries/hotplug-memory.c +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c @@ -69,13 +69,36 @@ unsigned long pseries_memory_block_size(void) return memblock_size; } -static void dlpar_free_drconf_property(struct property *prop) +static void dlpar_free_property(struct property *prop) { kfree(prop->name); kfree(prop->value); kfree(prop); } +static struct property *dlpar_clone_property(struct property *prop, + u32 prop_size) +{ + struct property *new_prop; + + new_prop = kzalloc(sizeof(*new_prop), GFP_KERNEL); + if (!new_prop) + return NULL; + + new_prop->name = kstrdup(prop->name, GFP_KERNEL); + new_prop->value = kzalloc(prop_size, GFP_KERNEL); + if (!new_prop->name || !new_prop->value) { + dlpar_free_property(new_prop); + return NULL; + } + + memcpy(new_prop->value, prop->value, prop->length); + new_prop->length = prop_size; + + of_property_set_flag(new_prop, OF_DYNAMIC); + return new_prop; +} + static struct property *dlpar_clone_drconf_property(struct device_node *dn) { struct property *prop, *new_prop; @@ -87,19 +110,10 @@ static struct property *dlpar_clone_drconf_property(struct device_node *dn) if (!prop) return NULL; - new_prop = kzalloc(sizeof(*new_prop), GFP_KERNEL); + new_prop = dlpar_clone_property(prop, prop->length); if (!new_prop) return NULL; - new_prop->name = kstrdup(prop->name, GFP_KERNEL); - new_prop->value = kmemdup(prop->value, prop->length, GFP_KERNEL); - if (!new_prop->name || !new_prop->value) { - dlpar_free_drconf_property(new_prop); - return NULL; - } - - new_prop->length = prop->length; - /* Convert the property to cpu endian-ness */ p = new_prop->value; *p = be32_to_cpu(*p); @@ -177,14 +191,74 @@ static int dlpar_update_device_tree_lmb(struct of_drconf_cell *lmb) return 0; } +static u32 find_aa_index(struct device_node *dr_node, + struct property *ala_prop, const u32 *lmb_assoc) +{ + u32 *assoc_arrays; + u32 aa_index; + int aa_arrays, aa_array_entries, aa_array_sz; + int i, index; + + /* + * The ibm,associativity-lookup-arrays property is defined to be + * a 32-bit value specifying the number of associativity arrays + * followed by a 32-bitvalue specifying the number of entries per + * array, followed by the associativity arrays. + */ + assoc_arrays = ala_prop->value; + + aa_arrays = be32_to_cpu(assoc_arrays[0]); + aa_array_entries = be32_to_cpu(assoc_arrays[1]); + aa_array_sz = aa_array_entries * sizeof(u32); + + aa_index = -1; + for (i = 0; i < aa_arrays; i++) { + index = (i * aa_array_entries) + 2; + + if (memcmp(&assoc_arrays[index], &lmb_assoc[1], aa_array_sz)) + continue; + + aa_index = i; + break; + } + + if (aa_index == -1) { + struct property *new_prop; + u32 new_prop_size; + + new_prop_size = ala_prop->length + aa_array_sz; + new_prop = dlpar_clone_property(ala_prop, new_prop_size); + if (!new_prop) + return -1; + + assoc_arrays = new_prop->value; + + /* increment the number of entries in the lookup array */ + assoc_arrays[0] = cpu_to_be32(aa_arrays + 1); + + /* copy the new associativity into the lookup array */ + index = aa_arrays * aa_array_entries + 2; + memcpy(&assoc_arrays[index], &lmb_assoc[1], aa_array_sz); + + of_update_property(dr_node, new_prop); + + /* + * The associativity lookup array index for this lmb is + * number of entries - 1 since we added its associativity + * to the end of the lookup array. + */ + aa_index = be32_to_cpu(assoc_arrays[0]) - 1; + } + + return aa_index; +} + static u32 lookup_lmb_associativity_index(struct of_drconf_cell *lmb) { struct device_node *parent, *lmb_node, *dr_node; + struct property *ala_prop; const u32 *lmb_assoc; - const u32 *assoc_arrays; u32 aa_index; - int aa_arrays, aa_array_entries, aa_array_sz; - int i; parent = of_find_node_by_path("/"); if (!parent) @@ -208,34 +282,15 @@ static u32 lookup_lmb_associativity_index(struct of_drconf_cell *lmb) return -ENODEV; } - assoc_arrays = of_get_property(dr_node, - "ibm,associativity-lookup-arrays", - NULL); - of_node_put(dr_node); - if (!assoc_arrays) { + ala_prop = of_find_property(dr_node, "ibm,associativity-lookup-arrays", + NULL); + if (!ala_prop) { + of_node_put(dr_node); dlpar_free_cc_nodes(lmb_node); return -ENODEV; } - /* The ibm,associativity-lookup-arrays property is defined to be - * a 32-bit value specifying the number of associativity arrays - * followed by a 32-bitvalue specifying the number of entries per - * array, followed by the associativity arrays. - */ - aa_arrays = be32_to_cpu(assoc_arrays[0]); - aa_array_entries = be32_to_cpu(assoc_arrays[1]); - aa_array_sz = aa_array_entries * sizeof(u32); - - aa_index = -1; - for (i = 0; i < aa_arrays; i++) { - int indx = (i * aa_array_entries) + 2; - - if (memcmp(&assoc_arrays[indx], &lmb_assoc[1], aa_array_sz)) - continue; - - aa_index = i; - break; - } + aa_index = find_aa_index(dr_node, ala_prop, lmb_assoc); dlpar_free_cc_nodes(lmb_node); return aa_index; @@ -533,50 +588,11 @@ static int dlpar_memory_remove_by_index(u32 drc_index, struct property *prop) #endif /* CONFIG_MEMORY_HOTREMOVE */ -static int dlpar_add_lmb_memory(struct of_drconf_cell *lmb) +static int dlpar_add_lmb(struct of_drconf_cell *lmb) { - struct memory_block *mem_block; unsigned long block_sz; int nid, rc; - block_sz = memory_block_size_bytes(); - - /* Find the node id for this address */ - nid = memory_add_physaddr_to_nid(lmb->base_addr); - - /* Add the memory */ - rc = add_memory(nid, lmb->base_addr, block_sz); - if (rc) - return rc; - - /* Register this block of memory */ - rc = memblock_add(lmb->base_addr, block_sz); - if (rc) { - remove_memory(nid, lmb->base_addr, block_sz); - return rc; - } - - mem_block = lmb_to_memblock(lmb); - if (!mem_block) { - remove_memory(nid, lmb->base_addr, block_sz); - return -EINVAL; - } - - rc = device_online(&mem_block->dev); - put_device(&mem_block->dev); - if (rc) { - remove_memory(nid, lmb->base_addr, block_sz); - return rc; - } - - lmb->flags |= DRCONF_MEM_ASSIGNED; - return 0; -} - -static int dlpar_add_lmb(struct of_drconf_cell *lmb) -{ - int rc; - if (lmb->flags & DRCONF_MEM_ASSIGNED) return -EINVAL; @@ -592,10 +608,18 @@ static int dlpar_add_lmb(struct of_drconf_cell *lmb) return rc; } - rc = dlpar_add_lmb_memory(lmb); + block_sz = memory_block_size_bytes(); + + /* Find the node id for this address */ + nid = memory_add_physaddr_to_nid(lmb->base_addr); + + /* Add the memory */ + rc = add_memory(nid, lmb->base_addr, block_sz); if (rc) { dlpar_remove_device_tree_lmb(lmb); dlpar_release_drc(lmb->drc_index); + } else { + lmb->flags |= DRCONF_MEM_ASSIGNED; } return rc; @@ -748,7 +772,7 @@ int dlpar_memory(struct pseries_hp_errorlog *hp_elog) break; } - dlpar_free_drconf_property(prop); + dlpar_free_property(prop); dlpar_memory_out: of_node_put(dn); diff --git a/arch/powerpc/platforms/pseries/io_event_irq.c b/arch/powerpc/platforms/pseries/io_event_irq.c index 0240c4ff878a..f053bda64ee7 100644 --- a/arch/powerpc/platforms/pseries/io_event_irq.c +++ b/arch/powerpc/platforms/pseries/io_event_irq.c @@ -113,7 +113,7 @@ static struct pseries_io_event * ioei_find_event(struct rtas_error_log *elog) * - The owner of an event is determined by combinations of scope, * event type, and sub-type. There is no easy way to pre-sort clients * by scope or event type alone. For example, Torrent ISR route change - * event is reported with scope 0x00 (Not Applicatable) rather than + * event is reported with scope 0x00 (Not Applicable) rather than * 0x3B (Torrent-hub). It is better to let the clients to identify * who owns the event. */ diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index 3e8865b187de..770a753b52c9 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -120,35 +120,6 @@ static void iommu_pseries_free_group(struct iommu_table_group *table_group, kfree(table_group); } -static void tce_invalidate_pSeries_sw(struct iommu_table *tbl, - __be64 *startp, __be64 *endp) -{ - u64 __iomem *invalidate = (u64 __iomem *)tbl->it_index; - unsigned long start, end, inc; - - start = __pa(startp); - end = __pa(endp); - inc = L1_CACHE_BYTES; /* invalidate a cacheline of TCEs at a time */ - - /* If this is non-zero, change the format. We shift the - * address and or in the magic from the device tree. */ - if (tbl->it_busno) { - start <<= 12; - end <<= 12; - inc <<= 12; - start |= tbl->it_busno; - end |= tbl->it_busno; - } - - end |= inc - 1; /* round up end to be different than start */ - - mb(); /* Make sure TCEs in memory are written */ - while (start <= end) { - out_be64(invalidate, start); - start += inc; - } -} - static int tce_build_pSeries(struct iommu_table *tbl, long index, long npages, unsigned long uaddr, enum dma_data_direction direction, @@ -173,9 +144,6 @@ static int tce_build_pSeries(struct iommu_table *tbl, long index, uaddr += TCE_PAGE_SIZE; tcep++; } - - if (tbl->it_type & TCE_PCI_SWINV_CREATE) - tce_invalidate_pSeries_sw(tbl, tces, tcep - 1); return 0; } @@ -188,9 +156,6 @@ static void tce_free_pSeries(struct iommu_table *tbl, long index, long npages) while (npages--) *(tcep++) = 0; - - if (tbl->it_type & TCE_PCI_SWINV_FREE) - tce_invalidate_pSeries_sw(tbl, tces, tcep - 1); } static unsigned long tce_get_pseries(struct iommu_table *tbl, long index) @@ -537,7 +502,7 @@ static void iommu_table_setparms(struct pci_controller *phb, struct iommu_table *tbl) { struct device_node *node; - const unsigned long *basep, *sw_inval; + const unsigned long *basep; const u32 *sizep; node = phb->dn; @@ -575,22 +540,6 @@ static void iommu_table_setparms(struct pci_controller *phb, tbl->it_index = 0; tbl->it_blocksize = 16; tbl->it_type = TCE_PCI; - - sw_inval = of_get_property(node, "linux,tce-sw-invalidate-info", NULL); - if (sw_inval) { - /* - * This property contains information on how to - * invalidate the TCE entry. The first property is - * the base MMIO address used to invalidate entries. - * The second property tells us the format of the TCE - * invalidate (whether it needs to be shifted) and - * some magic routing info to add to our invalidate - * command. - */ - tbl->it_index = (unsigned long) ioremap(sw_inval[0], 8); - tbl->it_busno = sw_inval[1]; /* overload this with magic */ - tbl->it_type = TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE; - } } /* diff --git a/arch/powerpc/platforms/pseries/kexec.c b/arch/powerpc/platforms/pseries/kexec.c index 13fa95b3aa8b..6681ac97fb18 100644 --- a/arch/powerpc/platforms/pseries/kexec.c +++ b/arch/powerpc/platforms/pseries/kexec.c @@ -14,14 +14,13 @@ #include <asm/page.h> #include <asm/firmware.h> #include <asm/kexec.h> -#include <asm/mpic.h> #include <asm/xics.h> #include <asm/smp.h> #include <asm/plpar_wrappers.h> #include "pseries.h" -static void pseries_kexec_cpu_down(int crash_shutdown, int secondary) +void pseries_kexec_cpu_down(int crash_shutdown, int secondary) { /* Don't risk a hypervisor call if we're crashing */ if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) { @@ -51,26 +50,6 @@ static void pseries_kexec_cpu_down(int crash_shutdown, int secondary) "(hw %d) failed with %d\n", cpu, hwcpu, ret); } } -} - -static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary) -{ - pseries_kexec_cpu_down(crash_shutdown, secondary); - mpic_teardown_this_cpu(secondary); -} -void __init setup_kexec_cpu_down_mpic(void) -{ - ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_mpic; -} - -static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary) -{ - pseries_kexec_cpu_down(crash_shutdown, secondary); xics_kexec_teardown_cpu(secondary); } - -void __init setup_kexec_cpu_down_xics(void) -{ - ppc_md.kexec_cpu_down = pseries_kexec_cpu_down_xics; -} diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 7f6100d91b4b..86707e67843f 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -45,6 +45,7 @@ #include <asm/plpar_wrappers.h> #include <asm/kexec.h> #include <asm/fadump.h> +#include <asm/asm-prototypes.h> #include "pseries.h" @@ -260,24 +261,8 @@ static void pSeries_lpar_hptab_clear(void) * This is also called on boot when a fadump happens. In that case we * must not change the exception endian mode. */ - if (firmware_has_feature(FW_FEATURE_SET_MODE) && !is_fadump_active()) { - long rc; - - rc = pseries_big_endian_exceptions(); - /* - * At this point it is unlikely panic() will get anything - * out to the user, but at least this will stop us from - * continuing on further and creating an even more - * difficult to debug situation. - * - * There is a known problem when kdump'ing, if cpus are offline - * the above call will fail. Rather than panicking again, keep - * going and hope the kdump kernel is also little endian, which - * it usually is. - */ - if (rc && !kdump_in_progress()) - panic("Could not enable big endian exceptions"); - } + if (firmware_has_feature(FW_FEATURE_SET_MODE) && !is_fadump_active()) + pseries_big_endian_exceptions(); #endif } @@ -604,17 +589,17 @@ static int __init disable_bulk_remove(char *str) __setup("bulk_remove=", disable_bulk_remove); -void __init hpte_init_lpar(void) +void __init hpte_init_pseries(void) { - ppc_md.hpte_invalidate = pSeries_lpar_hpte_invalidate; - ppc_md.hpte_updatepp = pSeries_lpar_hpte_updatepp; - ppc_md.hpte_updateboltedpp = pSeries_lpar_hpte_updateboltedpp; - ppc_md.hpte_insert = pSeries_lpar_hpte_insert; - ppc_md.hpte_remove = pSeries_lpar_hpte_remove; - ppc_md.hpte_removebolted = pSeries_lpar_hpte_removebolted; - ppc_md.flush_hash_range = pSeries_lpar_flush_hash_range; - ppc_md.hpte_clear_all = pSeries_lpar_hptab_clear; - ppc_md.hugepage_invalidate = pSeries_lpar_hugepage_invalidate; + mmu_hash_ops.hpte_invalidate = pSeries_lpar_hpte_invalidate; + mmu_hash_ops.hpte_updatepp = pSeries_lpar_hpte_updatepp; + mmu_hash_ops.hpte_updateboltedpp = pSeries_lpar_hpte_updateboltedpp; + mmu_hash_ops.hpte_insert = pSeries_lpar_hpte_insert; + mmu_hash_ops.hpte_remove = pSeries_lpar_hpte_remove; + mmu_hash_ops.hpte_removebolted = pSeries_lpar_hpte_removebolted; + mmu_hash_ops.flush_hash_range = pSeries_lpar_flush_hash_range; + mmu_hash_ops.hpte_clear_all = pSeries_lpar_hptab_clear; + mmu_hash_ops.hugepage_invalidate = pSeries_lpar_hugepage_invalidate; } #ifdef CONFIG_PPC_SMLPAR diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c index 9f8184175c86..79aef8c1c5b3 100644 --- a/arch/powerpc/platforms/pseries/nvram.c +++ b/arch/powerpc/platforms/pseries/nvram.c @@ -17,8 +17,6 @@ #include <linux/init.h> #include <linux/spinlock.h> #include <linux/slab.h> -#include <linux/kmsg_dump.h> -#include <linux/pstore.h> #include <linux/ctype.h> #include <asm/uaccess.h> #include <asm/nvram.h> diff --git a/arch/powerpc/platforms/pseries/power.c b/arch/powerpc/platforms/pseries/power.c index c26eadde434c..a4a0b57d1d81 100644 --- a/arch/powerpc/platforms/pseries/power.c +++ b/arch/powerpc/platforms/pseries/power.c @@ -27,6 +27,8 @@ #include <linux/init.h> #include <asm/machdep.h> +#include "pseries.h" + unsigned long rtas_poweron_auto; /* default and normal state is 0 */ static ssize_t auto_poweron_show(struct kobject *kobj, diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h index 7aa83f00ac62..b1be7b713fe6 100644 --- a/arch/powerpc/platforms/pseries/pseries.h +++ b/arch/powerpc/platforms/pseries/pseries.h @@ -20,31 +20,18 @@ extern void request_event_sources_irqs(struct device_node *np, #include <linux/of.h> -extern void __init fw_hypertas_feature_init(const char *hypertas, - unsigned long len); -extern void __init fw_vec5_feature_init(const char *hypertas, - unsigned long len); - struct pt_regs; extern int pSeries_system_reset_exception(struct pt_regs *regs); extern int pSeries_machine_check_exception(struct pt_regs *regs); #ifdef CONFIG_SMP -extern void smp_init_pseries_mpic(void); -extern void smp_init_pseries_xics(void); +extern void smp_init_pseries(void); #else -static inline void smp_init_pseries_mpic(void) { }; -static inline void smp_init_pseries_xics(void) { }; +static inline void smp_init_pseries(void) { }; #endif -#ifdef CONFIG_KEXEC -extern void setup_kexec_cpu_down_xics(void); -extern void setup_kexec_cpu_down_mpic(void); -#else -static inline void setup_kexec_cpu_down_xics(void) { } -static inline void setup_kexec_cpu_down_mpic(void) { } -#endif +extern void pseries_kexec_cpu_down(int crash_shutdown, int secondary); extern void pSeries_final_fixup(void); @@ -64,6 +51,8 @@ extern int dlpar_detach_node(struct device_node *); extern int dlpar_acquire_drc(u32 drc_index); extern int dlpar_release_drc(u32 drc_index); +void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog, + struct completion *hotplug_done, int *rc); #ifdef CONFIG_MEMORY_HOTPLUG int dlpar_memory(struct pseries_hp_errorlog *hp_elog); #else diff --git a/arch/powerpc/platforms/pseries/pseries_energy.c b/arch/powerpc/platforms/pseries/pseries_energy.c index 92767791f93b..164a13d3998a 100644 --- a/arch/powerpc/platforms/pseries/pseries_energy.c +++ b/arch/powerpc/platforms/pseries/pseries_energy.c @@ -208,19 +208,19 @@ static ssize_t percpu_deactivate_hint_show(struct device *dev, * Per-cpu value of the hint */ -struct device_attribute attr_cpu_activate_hint_list = +static struct device_attribute attr_cpu_activate_hint_list = __ATTR(pseries_activate_hint_list, 0444, cpu_activate_hint_list_show, NULL); -struct device_attribute attr_cpu_deactivate_hint_list = +static struct device_attribute attr_cpu_deactivate_hint_list = __ATTR(pseries_deactivate_hint_list, 0444, cpu_deactivate_hint_list_show, NULL); -struct device_attribute attr_percpu_activate_hint = +static struct device_attribute attr_percpu_activate_hint = __ATTR(pseries_activate_hint, 0444, percpu_activate_hint_show, NULL); -struct device_attribute attr_percpu_deactivate_hint = +static struct device_attribute attr_percpu_deactivate_hint = __ATTR(pseries_deactivate_hint, 0444, percpu_deactivate_hint_show, NULL); diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index 9a3e27b863ce..904a677208d1 100644 --- a/arch/powerpc/platforms/pseries/ras.c +++ b/arch/powerpc/platforms/pseries/ras.c @@ -43,6 +43,7 @@ static int ras_check_exception_token; /* EPOW events counter variable */ static int num_epow_events; +static irqreturn_t ras_hotplug_interrupt(int irq, void *dev_id); static irqreturn_t ras_epow_interrupt(int irq, void *dev_id); static irqreturn_t ras_error_interrupt(int irq, void *dev_id); @@ -65,6 +66,14 @@ static int __init init_ras_IRQ(void) of_node_put(np); } + /* Hotplug Events */ + np = of_find_node_by_path("/event-sources/hot-plug-events"); + if (np != NULL) { + request_event_sources_irqs(np, ras_hotplug_interrupt, + "RAS_HOTPLUG"); + of_node_put(np); + } + /* EPOW Events */ np = of_find_node_by_path("/event-sources/epow-events"); if (np != NULL) { @@ -190,6 +199,36 @@ static void rtas_parse_epow_errlog(struct rtas_error_log *log) num_epow_events++; } +static irqreturn_t ras_hotplug_interrupt(int irq, void *dev_id) +{ + struct pseries_errorlog *pseries_log; + struct pseries_hp_errorlog *hp_elog; + + spin_lock(&ras_log_buf_lock); + + rtas_call(ras_check_exception_token, 6, 1, NULL, + RTAS_VECTOR_EXTERNAL_INTERRUPT, virq_to_hw(irq), + RTAS_HOTPLUG_EVENTS, 0, __pa(&ras_log_buf), + rtas_get_error_log_max()); + + pseries_log = get_pseries_errorlog((struct rtas_error_log *)ras_log_buf, + PSERIES_ELOG_SECT_ID_HOTPLUG); + hp_elog = (struct pseries_hp_errorlog *)pseries_log->data; + + /* + * Since PCI hotplug is not currently supported on pseries, put PCI + * hotplug events on the ras_log_buf to be handled by rtas_errd. + */ + if (hp_elog->resource == PSERIES_HP_ELOG_RESOURCE_MEM || + hp_elog->resource == PSERIES_HP_ELOG_RESOURCE_CPU) + queue_hotplug_event(hp_elog, NULL, NULL); + else + log_error(ras_log_buf, ERR_TYPE_RTAS_LOG, 0); + + spin_unlock(&ras_log_buf_lock); + return IRQ_HANDLED; +} + /* Handle environmental and power warning (EPOW) interrupts. */ static irqreturn_t ras_epow_interrupt(int irq, void *dev_id) { diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index 9883bc7ea007..4ffcaa6f8670 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -57,7 +57,6 @@ #include <asm/time.h> #include <asm/nvram.h> #include <asm/pmc.h> -#include <asm/mpic.h> #include <asm/xics.h> #include <asm/ppc-pci.h> #include <asm/i8259.h> @@ -77,8 +76,6 @@ EXPORT_SYMBOL(CMO_PageSize); int fwnmi_active; /* TRUE if an FWNMI handler is present */ -static struct device_node *pSeries_mpic_node; - static void pSeries_show_cpuinfo(struct seq_file *m) { struct device_node *root; @@ -172,48 +169,7 @@ static void __init pseries_setup_i8259_cascade(void) irq_set_chained_handler(cascade, pseries_8259_cascade); } -static void __init pseries_mpic_init_IRQ(void) -{ - struct device_node *np; - const unsigned int *opprop; - unsigned long openpic_addr = 0; - int naddr, n, i, opplen; - struct mpic *mpic; - - np = of_find_node_by_path("/"); - naddr = of_n_addr_cells(np); - opprop = of_get_property(np, "platform-open-pic", &opplen); - if (opprop != NULL) { - openpic_addr = of_read_number(opprop, naddr); - printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr); - } - of_node_put(np); - - BUG_ON(openpic_addr == 0); - - /* Setup the openpic driver */ - mpic = mpic_alloc(pSeries_mpic_node, openpic_addr, - MPIC_NO_RESET, 16, 0, " MPIC "); - BUG_ON(mpic == NULL); - - /* Add ISUs */ - opplen /= sizeof(u32); - for (n = 0, i = naddr; i < opplen; i += naddr, n++) { - unsigned long isuaddr = of_read_number(opprop + i, naddr); - mpic_assign_isu(mpic, n, isuaddr); - } - - /* Setup top-level get_irq */ - ppc_md.get_irq = mpic_get_irq; - - /* All ISUs are setup, complete initialization */ - mpic_init(mpic); - - /* Look for cascade */ - pseries_setup_i8259_cascade(); -} - -static void __init pseries_xics_init_IRQ(void) +static void __init pseries_init_irq(void) { xics_init(); pseries_setup_i8259_cascade(); @@ -228,32 +184,6 @@ static void pseries_lpar_enable_pmcs(void) plpar_hcall_norets(H_PERFMON, set, reset); } -static void __init pseries_discover_pic(void) -{ - struct device_node *np; - const char *typep; - - for_each_node_by_name(np, "interrupt-controller") { - typep = of_get_property(np, "compatible", NULL); - if (!typep) - continue; - if (strstr(typep, "open-pic")) { - pSeries_mpic_node = of_node_get(np); - ppc_md.init_IRQ = pseries_mpic_init_IRQ; - setup_kexec_cpu_down_mpic(); - smp_init_pseries_mpic(); - return; - } else if (strstr(typep, "ppc-xicp")) { - ppc_md.init_IRQ = pseries_xics_init_IRQ; - setup_kexec_cpu_down_xics(); - smp_init_pseries_xics(); - return; - } - } - printk(KERN_ERR "pSeries_discover_pic: failed to recognize" - " interrupt-controller\n"); -} - static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *data) { struct of_reconfig_data *rd = data; @@ -265,11 +195,8 @@ static int pci_dn_reconfig_notifier(struct notifier_block *nb, unsigned long act case OF_RECONFIG_ATTACH_NODE: parent = of_get_parent(np); pdn = parent ? PCI_DN(parent) : NULL; - if (pdn) { - /* Create pdn and EEH device */ + if (pdn) pci_add_device_node_info(pdn->phb, np); - eeh_dev_init(PCI_DN(np), pdn->phb); - } of_node_put(parent); break; @@ -367,7 +294,7 @@ static void pseries_lpar_idle(void) { /* * Default handler to go into low thread priority and possibly - * low power mode by cedeing processor to hypervisor + * low power mode by ceding processor to hypervisor */ /* Indicate to hypervisor that we are idle. */ @@ -392,15 +319,23 @@ static void pseries_lpar_idle(void) * to ever be a problem in practice we can move this into a kernel thread to * finish off the process later in boot. */ -long pSeries_enable_reloc_on_exc(void) +void pseries_enable_reloc_on_exc(void) { long rc; unsigned int delay, total_delay = 0; while (1) { rc = enable_reloc_on_exceptions(); - if (!H_IS_LONG_BUSY(rc)) - return rc; + if (!H_IS_LONG_BUSY(rc)) { + if (rc == H_P2) { + pr_info("Relocation on exceptions not" + " supported\n"); + } else if (rc != H_SUCCESS) { + pr_warn("Unable to enable relocation" + " on exceptions: %ld\n", rc); + } + break; + } delay = get_longbusy_msecs(rc); total_delay += delay; @@ -408,66 +343,81 @@ long pSeries_enable_reloc_on_exc(void) pr_warn("Warning: Giving up waiting to enable " "relocation on exceptions (%u msec)!\n", total_delay); - return rc; + return; } mdelay(delay); } } -EXPORT_SYMBOL(pSeries_enable_reloc_on_exc); +EXPORT_SYMBOL(pseries_enable_reloc_on_exc); -long pSeries_disable_reloc_on_exc(void) +void pseries_disable_reloc_on_exc(void) { long rc; while (1) { rc = disable_reloc_on_exceptions(); if (!H_IS_LONG_BUSY(rc)) - return rc; + break; mdelay(get_longbusy_msecs(rc)); } + if (rc != H_SUCCESS) + pr_warning("Warning: Failed to disable relocation on " + "exceptions: %ld\n", rc); } -EXPORT_SYMBOL(pSeries_disable_reloc_on_exc); +EXPORT_SYMBOL(pseries_disable_reloc_on_exc); #ifdef CONFIG_KEXEC static void pSeries_machine_kexec(struct kimage *image) { - long rc; - - if (firmware_has_feature(FW_FEATURE_SET_MODE)) { - rc = pSeries_disable_reloc_on_exc(); - if (rc != H_SUCCESS) - pr_warning("Warning: Failed to disable relocation on " - "exceptions: %ld\n", rc); - } + if (firmware_has_feature(FW_FEATURE_SET_MODE)) + pseries_disable_reloc_on_exc(); default_machine_kexec(image); } #endif #ifdef __LITTLE_ENDIAN__ -long pseries_big_endian_exceptions(void) +void pseries_big_endian_exceptions(void) { long rc; while (1) { rc = enable_big_endian_exceptions(); if (!H_IS_LONG_BUSY(rc)) - return rc; + break; mdelay(get_longbusy_msecs(rc)); } + + /* + * At this point it is unlikely panic() will get anything + * out to the user, since this is called very late in kexec + * but at least this will stop us from continuing on further + * and creating an even more difficult to debug situation. + * + * There is a known problem when kdump'ing, if cpus are offline + * the above call will fail. Rather than panicking again, keep + * going and hope the kdump kernel is also little endian, which + * it usually is. + */ + if (rc && !kdump_in_progress()) + panic("Could not enable big endian exceptions"); } -static long pseries_little_endian_exceptions(void) +void pseries_little_endian_exceptions(void) { long rc; while (1) { rc = enable_little_endian_exceptions(); if (!H_IS_LONG_BUSY(rc)) - return rc; + break; mdelay(get_longbusy_msecs(rc)); } + if (rc) { + ppc_md.progress("H_SET_MODE LE exception fail", 0); + panic("Could not enable little endian exceptions"); + } } #endif @@ -492,7 +442,6 @@ static void __init find_and_init_phbs(void) } of_node_put(root); - pci_devs_phb_init(); /* * PCI_PROBE_ONLY and PCI_REASSIGN_ALL_BUS can be set via properties @@ -506,7 +455,8 @@ static void __init pSeries_setup_arch(void) set_arch_panic_timeout(10, ARCH_PANIC_TIMEOUT); /* Discover PIC type and setup ppc_md accordingly */ - pseries_discover_pic(); + smp_init_pseries(); + /* openpic global configuration register (64-bit format). */ /* openpic Interrupt Source Unit pointer (64-bit format). */ @@ -537,18 +487,6 @@ static void __init pSeries_setup_arch(void) } ppc_md.pcibios_root_bridge_prepare = pseries_root_bridge_prepare; - - if (firmware_has_feature(FW_FEATURE_SET_MODE)) { - long rc; - - rc = pSeries_enable_reloc_on_exc(); - if (rc == H_P2) { - pr_info("Relocation on exceptions not supported\n"); - } else if (rc != H_SUCCESS) { - pr_warn("Unable to enable relocation on exceptions: " - "%ld\n", rc); - } - } } static int __init pSeries_init_panel(void) @@ -682,9 +620,9 @@ static void pSeries_cmo_feature_init(void) /* * Early initialization. Relocation is on but do not reference unbolted pages */ -static void __init pSeries_init_early(void) +static void __init pseries_init(void) { - pr_debug(" -> pSeries_init_early()\n"); + pr_debug(" -> pseries_init()\n"); #ifdef CONFIG_HVC_CONSOLE if (firmware_has_feature(FW_FEATURE_LPAR)) @@ -701,7 +639,7 @@ static void __init pSeries_init_early(void) pSeries_cmo_feature_init(); iommu_init_early_pSeries(); - pr_debug(" <- pSeries_init_early()\n"); + pr_debug(" <- pseries_init()\n"); } /** @@ -732,49 +670,9 @@ static void pseries_power_off(void) for (;;); } -/* - * Called very early, MMU is off, device-tree isn't unflattened - */ - -static int __init pseries_probe_fw_features(unsigned long node, - const char *uname, int depth, - void *data) -{ - const char *prop; - int len; - static int hypertas_found; - static int vec5_found; - - if (depth != 1) - return 0; - - if (!strcmp(uname, "rtas") || !strcmp(uname, "rtas@0")) { - prop = of_get_flat_dt_prop(node, "ibm,hypertas-functions", - &len); - if (prop) { - powerpc_firmware_features |= FW_FEATURE_LPAR; - fw_hypertas_feature_init(prop, len); - } - - hypertas_found = 1; - } - - if (!strcmp(uname, "chosen")) { - prop = of_get_flat_dt_prop(node, "ibm,architecture-vec-5", - &len); - if (prop) - fw_vec5_feature_init(prop, len); - - vec5_found = 1; - } - - return hypertas_found && vec5_found; -} - static int __init pSeries_probe(void) { - unsigned long root = of_get_flat_dt_root(); - const char *dtype = of_get_flat_dt_prop(root, "device_type", NULL); + const char *dtype = of_get_property(of_root, "device_type", NULL); if (dtype == NULL) return 0; @@ -784,41 +682,17 @@ static int __init pSeries_probe(void) /* Cell blades firmware claims to be chrp while it's not. Until this * is fixed, we need to avoid those here. */ - if (of_flat_dt_is_compatible(root, "IBM,CPBW-1.0") || - of_flat_dt_is_compatible(root, "IBM,CBEA")) + if (of_machine_is_compatible("IBM,CPBW-1.0") || + of_machine_is_compatible("IBM,CBEA")) return 0; - pr_debug("pSeries detected, looking for LPAR capability...\n"); - - /* Now try to figure out if we are running on LPAR */ - of_scan_flat_dt(pseries_probe_fw_features, NULL); - -#ifdef __LITTLE_ENDIAN__ - if (firmware_has_feature(FW_FEATURE_SET_MODE)) { - long rc; - /* - * Tell the hypervisor that we want our exceptions to - * be taken in little endian mode. If this fails we don't - * want to use BUG() because it will trigger an exception. - */ - rc = pseries_little_endian_exceptions(); - if (rc) { - ppc_md.progress("H_SET_MODE LE exception fail", 0); - panic("Could not enable little endian exceptions"); - } - } -#endif - - if (firmware_has_feature(FW_FEATURE_LPAR)) - hpte_init_lpar(); - else - hpte_init_native(); - pm_power_off = pseries_power_off; pr_debug("Machine is%s LPAR !\n", (powerpc_firmware_features & FW_FEATURE_LPAR) ? "" : " not"); + pseries_init(); + return 1; } @@ -837,7 +711,7 @@ define_machine(pseries) { .name = "pSeries", .probe = pSeries_probe, .setup_arch = pSeries_setup_arch, - .init_early = pSeries_init_early, + .init_IRQ = pseries_init_irq, .show_cpuinfo = pSeries_show_cpuinfo, .log_error = pSeries_log_error, .pcibios_fixup = pSeries_final_fixup, @@ -853,6 +727,7 @@ define_machine(pseries) { .machine_check_exception = pSeries_machine_check_exception, #ifdef CONFIG_KEXEC .machine_kexec = pSeries_machine_kexec, + .kexec_cpu_down = pseries_kexec_cpu_down, #endif #ifdef CONFIG_MEMORY_HOTPLUG_SPARSE .memory_block_size = pseries_memory_block_size, diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index 6932ea803e33..f6f83aeccaaa 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -38,7 +38,6 @@ #include <asm/cputable.h> #include <asm/firmware.h> #include <asm/rtas.h> -#include <asm/mpic.h> #include <asm/vdso_datapage.h> #include <asm/cputhreads.h> #include <asm/xics.h> @@ -140,7 +139,7 @@ out: return 1; } -static void smp_xics_setup_cpu(int cpu) +static void smp_setup_cpu(int cpu) { if (cpu != boot_cpuid) xics_setup_cpu(); @@ -207,28 +206,22 @@ static __init void pSeries_smp_probe(void) } } -static struct smp_ops_t pSeries_mpic_smp_ops = { - .message_pass = smp_mpic_message_pass, - .probe = smp_mpic_probe, - .kick_cpu = smp_pSeries_kick_cpu, - .setup_cpu = smp_mpic_setup_cpu, -}; - -static struct smp_ops_t pSeries_xics_smp_ops = { +static struct smp_ops_t pseries_smp_ops = { .message_pass = NULL, /* Use smp_muxed_ipi_message_pass */ .cause_ipi = NULL, /* Filled at runtime by pSeries_smp_probe() */ .probe = pSeries_smp_probe, .kick_cpu = smp_pSeries_kick_cpu, - .setup_cpu = smp_xics_setup_cpu, + .setup_cpu = smp_setup_cpu, .cpu_bootable = smp_generic_cpu_bootable, }; /* This is called very early */ -static void __init smp_init_pseries(void) +void __init smp_init_pseries(void) { int i; pr_debug(" -> smp_init_pSeries()\n"); + smp_ops = &pseries_smp_ops; alloc_bootmem_cpumask_var(&of_spin_mask); @@ -258,17 +251,3 @@ static void __init smp_init_pseries(void) pr_debug(" <- smp_init_pSeries()\n"); } - -void __init smp_init_pseries_mpic(void) -{ - smp_ops = &pSeries_mpic_smp_ops; - - smp_init_pseries(); -} - -void __init smp_init_pseries_xics(void) -{ - smp_ops = &pSeries_xics_smp_ops; - - smp_init_pseries(); -} diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c index 0ac12e5fd8ab..911456d17713 100644 --- a/arch/powerpc/sysdev/cpm_common.c +++ b/arch/powerpc/sysdev/cpm_common.c @@ -28,6 +28,7 @@ #include <asm/udbg.h> #include <asm/io.h> #include <asm/cpm.h> +#include <asm/fixmap.h> #include <soc/fsl/qe/qe.h> #include <mm/mmu_decl.h> @@ -37,25 +38,36 @@ #endif #ifdef CONFIG_PPC_EARLY_DEBUG_CPM -static u32 __iomem *cpm_udbg_txdesc = - (u32 __iomem __force *)CONFIG_PPC_EARLY_DEBUG_CPM_ADDR; +static u32 __iomem *cpm_udbg_txdesc; +static u8 __iomem *cpm_udbg_txbuf; static void udbg_putc_cpm(char c) { - u8 __iomem *txbuf = (u8 __iomem __force *)in_be32(&cpm_udbg_txdesc[1]); - if (c == '\n') udbg_putc_cpm('\r'); while (in_be32(&cpm_udbg_txdesc[0]) & 0x80000000) ; - out_8(txbuf, c); + out_8(cpm_udbg_txbuf, c); out_be32(&cpm_udbg_txdesc[0], 0xa0000001); } void __init udbg_init_cpm(void) { +#ifdef CONFIG_PPC_8xx + cpm_udbg_txdesc = (u32 __iomem __force *) + (CONFIG_PPC_EARLY_DEBUG_CPM_ADDR - PHYS_IMMR_BASE + + VIRT_IMMR_BASE); + cpm_udbg_txbuf = (u8 __iomem __force *) + (in_be32(&cpm_udbg_txdesc[1]) - PHYS_IMMR_BASE + + VIRT_IMMR_BASE); +#else + cpm_udbg_txdesc = (u32 __iomem __force *) + CONFIG_PPC_EARLY_DEBUG_CPM_ADDR; + cpm_udbg_txbuf = (u8 __iomem __force *)in_be32(&cpm_udbg_txdesc[1]); +#endif + if (cpm_udbg_txdesc) { #ifdef CONFIG_CPM2 setbat(1, 0xf0000000, 0xf0000000, 1024*1024, PAGE_KERNEL_NCG); diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c index b7348637eae0..26904f4879ec 100644 --- a/arch/powerpc/sysdev/dart_iommu.c +++ b/arch/powerpc/sysdev/dart_iommu.c @@ -48,16 +48,10 @@ #include "dart.h" -/* Physical base address and size of the DART table */ -unsigned long dart_tablebase; /* exported to htab_initialize */ +/* DART table address and size */ +static u32 *dart_tablebase; static unsigned long dart_tablesize; -/* Virtual base address of the DART table */ -static u32 *dart_vbase; -#ifdef CONFIG_PM -static u32 *dart_copy; -#endif - /* Mapped base address for the dart */ static unsigned int __iomem *dart; @@ -151,6 +145,34 @@ wait_more: spin_unlock_irqrestore(&invalidate_lock, flags); } +static void dart_cache_sync(unsigned int *base, unsigned int count) +{ + /* + * We add 1 to the number of entries to flush, following a + * comment in Darwin indicating that the memory controller + * can prefetch unmapped memory under some circumstances. + */ + unsigned long start = (unsigned long)base; + unsigned long end = start + (count + 1) * sizeof(unsigned int); + unsigned int tmp; + + /* Perform a standard cache flush */ + flush_inval_dcache_range(start, end); + + /* + * Perform the sequence described in the CPC925 manual to + * ensure all the data gets to a point the cache incoherent + * DART hardware will see. + */ + asm volatile(" sync;" + " isync;" + " dcbf 0,%1;" + " sync;" + " isync;" + " lwz %0,0(%1);" + " isync" : "=r" (tmp) : "r" (end) : "memory"); +} + static void dart_flush(struct iommu_table *tbl) { mb(); @@ -165,13 +187,13 @@ static int dart_build(struct iommu_table *tbl, long index, enum dma_data_direction direction, struct dma_attrs *attrs) { - unsigned int *dp; + unsigned int *dp, *orig_dp; unsigned int rpn; long l; DBG("dart: build at: %lx, %lx, addr: %x\n", index, npages, uaddr); - dp = ((unsigned int*)tbl->it_base) + index; + orig_dp = dp = ((unsigned int*)tbl->it_base) + index; /* On U3, all memory is contiguous, so we can move this * out of the loop. @@ -184,11 +206,7 @@ static int dart_build(struct iommu_table *tbl, long index, uaddr += DART_PAGE_SIZE; } - - /* make sure all updates have reached memory */ - mb(); - in_be32((unsigned __iomem *)dp); - mb(); + dart_cache_sync(orig_dp, npages); if (dart_is_u4) { rpn = index; @@ -203,7 +221,8 @@ static int dart_build(struct iommu_table *tbl, long index, static void dart_free(struct iommu_table *tbl, long index, long npages) { - unsigned int *dp; + unsigned int *dp, *orig_dp; + long orig_npages = npages; /* We don't worry about flushing the TLB cache. The only drawback of * not doing it is that we won't catch buggy device drivers doing @@ -212,34 +231,30 @@ static void dart_free(struct iommu_table *tbl, long index, long npages) DBG("dart: free at: %lx, %lx\n", index, npages); - dp = ((unsigned int *)tbl->it_base) + index; + orig_dp = dp = ((unsigned int *)tbl->it_base) + index; while (npages--) *(dp++) = dart_emptyval; -} + dart_cache_sync(orig_dp, orig_npages); +} -static int __init dart_init(struct device_node *dart_node) +static void allocate_dart(void) { - unsigned int i; - unsigned long tmp, base, size; - struct resource r; - - if (dart_tablebase == 0 || dart_tablesize == 0) { - printk(KERN_INFO "DART: table not allocated, using " - "direct DMA\n"); - return -ENODEV; - } + unsigned long tmp; - if (of_address_to_resource(dart_node, 0, &r)) - panic("DART: can't get register base ! "); + /* 512 pages (2MB) is max DART tablesize. */ + dart_tablesize = 1UL << 21; - /* Make sure nothing from the DART range remains in the CPU cache - * from a previous mapping that existed before the kernel took - * over + /* + * 16MB (1 << 24) alignment. We allocate a full 16Mb chuck since we + * will blow up an entire large page anyway in the kernel mapping. */ - flush_dcache_phys_range(dart_tablebase, - dart_tablebase + dart_tablesize); + dart_tablebase = __va(memblock_alloc_base(1UL<<24, + 1UL<<24, 0x80000000L)); + + /* There is no point scanning the DART space for leaks*/ + kmemleak_no_scan((void *)dart_tablebase); /* Allocate a spare page to map all invalid DART pages. We need to do * that to work around what looks like a problem with the HT bridge @@ -249,20 +264,51 @@ static int __init dart_init(struct device_node *dart_node) dart_emptyval = DARTMAP_VALID | ((tmp >> DART_PAGE_SHIFT) & DARTMAP_RPNMASK); + printk(KERN_INFO "DART table allocated at: %p\n", dart_tablebase); +} + +static int __init dart_init(struct device_node *dart_node) +{ + unsigned int i; + unsigned long base, size; + struct resource r; + + /* IOMMU disabled by the user ? bail out */ + if (iommu_is_off) + return -ENODEV; + + /* + * Only use the DART if the machine has more than 1GB of RAM + * or if requested with iommu=on on cmdline. + * + * 1GB of RAM is picked as limit because some default devices + * (i.e. Airport Extreme) have 30 bit address range limits. + */ + + if (!iommu_force_on && memblock_end_of_DRAM() <= 0x40000000ull) + return -ENODEV; + + /* Get DART registers */ + if (of_address_to_resource(dart_node, 0, &r)) + panic("DART: can't get register base ! "); + /* Map in DART registers */ dart = ioremap(r.start, resource_size(&r)); if (dart == NULL) panic("DART: Cannot map registers!"); - /* Map in DART table */ - dart_vbase = ioremap(__pa(dart_tablebase), dart_tablesize); + /* Allocate the DART and dummy page */ + allocate_dart(); /* Fill initial table */ for (i = 0; i < dart_tablesize/4; i++) - dart_vbase[i] = dart_emptyval; + dart_tablebase[i] = dart_emptyval; + + /* Push to memory */ + dart_cache_sync(dart_tablebase, dart_tablesize / sizeof(u32)); /* Initialize DART with table base and enable it. */ - base = dart_tablebase >> DART_PAGE_SHIFT; + base = ((unsigned long)dart_tablebase) >> DART_PAGE_SHIFT; size = dart_tablesize >> DART_PAGE_SHIFT; if (dart_is_u4) { size &= DART_SIZE_U4_SIZE_MASK; @@ -301,7 +347,7 @@ static void iommu_table_dart_setup(void) iommu_table_dart.it_page_shift = IOMMU_PAGE_SHIFT_4K; /* Initialize the common IOMMU code */ - iommu_table_dart.it_base = (unsigned long)dart_vbase; + iommu_table_dart.it_base = (unsigned long)dart_tablebase; iommu_table_dart.it_index = 0; iommu_table_dart.it_blocksize = 1; iommu_table_dart.it_ops = &iommu_dart_ops; @@ -404,75 +450,21 @@ void __init iommu_init_early_dart(struct pci_controller_ops *controller_ops) } #ifdef CONFIG_PM -static void iommu_dart_save(void) -{ - memcpy(dart_copy, dart_vbase, 2*1024*1024); -} - static void iommu_dart_restore(void) { - memcpy(dart_vbase, dart_copy, 2*1024*1024); + dart_cache_sync(dart_tablebase, dart_tablesize / sizeof(u32)); dart_tlb_invalidate_all(); } static int __init iommu_init_late_dart(void) { - unsigned long tbasepfn; - struct page *p; - - /* if no dart table exists then we won't need to save it - * and the area has also not been reserved */ if (!dart_tablebase) return 0; - tbasepfn = __pa(dart_tablebase) >> PAGE_SHIFT; - register_nosave_region_late(tbasepfn, - tbasepfn + ((1<<24) >> PAGE_SHIFT)); - - /* For suspend we need to copy the dart contents because - * it is not part of the regular mapping (see above) and - * thus not saved automatically. The memory for this copy - * must be allocated early because we need 2 MB. */ - p = alloc_pages(GFP_KERNEL, 21 - PAGE_SHIFT); - BUG_ON(!p); - dart_copy = page_address(p); - - ppc_md.iommu_save = iommu_dart_save; ppc_md.iommu_restore = iommu_dart_restore; return 0; } late_initcall(iommu_init_late_dart); -#endif - -void __init alloc_dart_table(void) -{ - /* Only reserve DART space if machine has more than 1GB of RAM - * or if requested with iommu=on on cmdline. - * - * 1GB of RAM is picked as limit because some default devices - * (i.e. Airport Extreme) have 30 bit address range limits. - */ - - if (iommu_is_off) - return; - - if (!iommu_force_on && memblock_end_of_DRAM() <= 0x40000000ull) - return; - - /* 512 pages (2MB) is max DART tablesize. */ - dart_tablesize = 1UL << 21; - /* 16MB (1 << 24) alignment. We allocate a full 16Mb chuck since we - * will blow up an entire large page anyway in the kernel mapping - */ - dart_tablebase = (unsigned long) - __va(memblock_alloc_base(1UL<<24, 1UL<<24, 0x80000000L)); - /* - * The DART space is later unmapped from the kernel linear mapping and - * accessing dart_tablebase during kmemleak scanning will fault. - */ - kmemleak_no_scan((void *)dart_tablebase); - - printk(KERN_INFO "DART table allocated at: %lx\n", dart_tablebase); -} +#endif /* CONFIG_PM */ diff --git a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c b/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c index 861cebf9c292..c27058e5df26 100644 --- a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c +++ b/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c @@ -90,12 +90,8 @@ static int mpc85xx_l2ctlr_of_probe(struct platform_device *dev) } l2cache_size = *prop; - if (get_cache_sram_params(&sram_params)) { - dev_err(&dev->dev, - "Entire L2 as cache, provide valid sram offset and size\n"); - return -EINVAL; - } - + if (get_cache_sram_params(&sram_params)) + return 0; /* fall back to L2 cache only */ rem = l2cache_size % sram_params.sram_size; ways = LOCK_WAYS_FULL * sram_params.sram_size / l2cache_size; diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index 99269c041615..a09ca704de58 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -204,7 +204,7 @@ static int __init setup_rstcr(void) arch_initcall(setup_rstcr); -void fsl_rstcr_restart(char *cmd) +void __noreturn fsl_rstcr_restart(char *cmd) { local_irq_disable(); if (rstcr) @@ -228,10 +228,11 @@ EXPORT_SYMBOL(diu_ops); * to initiate a partition restart when we're running under the Freescale * hypervisor. */ -void fsl_hv_restart(char *cmd) +void __noreturn fsl_hv_restart(char *cmd) { pr_info("hv restart\n"); fh_partition_restart(-1); + while (1) ; } /* @@ -241,9 +242,10 @@ void fsl_hv_restart(char *cmd) * function pointers, to shut down the partition when we're running under * the Freescale hypervisor. */ -void fsl_hv_halt(void) +void __noreturn fsl_hv_halt(void) { pr_info("hv exit\n"); fh_partition_stop(-1); + while (1) ; } #endif diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h index 4c5a19ef4f0b..433566a5ef19 100644 --- a/arch/powerpc/sysdev/fsl_soc.h +++ b/arch/powerpc/sysdev/fsl_soc.h @@ -19,7 +19,7 @@ extern u32 fsl_get_sys_freq(void); struct spi_board_info; struct device_node; -extern void fsl_rstcr_restart(char *cmd); +extern void __noreturn fsl_rstcr_restart(char *cmd); /* The different ports that the DIU can be connected to */ enum fsl_diu_monitor_port { @@ -42,8 +42,8 @@ struct platform_diu_data_ops { extern struct platform_diu_data_ops diu_ops; -void fsl_hv_restart(char *cmd); -void fsl_hv_halt(void); +void __noreturn fsl_hv_restart(char *cmd); +void __noreturn fsl_hv_halt(void); #endif #endif diff --git a/arch/powerpc/sysdev/xics/Makefile b/arch/powerpc/sysdev/xics/Makefile index c606aa8ba60a..5d7f5a6564de 100644 --- a/arch/powerpc/sysdev/xics/Makefile +++ b/arch/powerpc/sysdev/xics/Makefile @@ -4,4 +4,4 @@ obj-y += xics-common.o obj-$(CONFIG_PPC_ICP_NATIVE) += icp-native.o obj-$(CONFIG_PPC_ICP_HV) += icp-hv.o obj-$(CONFIG_PPC_ICS_RTAS) += ics-rtas.o -obj-$(CONFIG_PPC_POWERNV) += ics-opal.o +obj-$(CONFIG_PPC_POWERNV) += ics-opal.o icp-opal.o diff --git a/arch/powerpc/sysdev/xics/icp-opal.c b/arch/powerpc/sysdev/xics/icp-opal.c new file mode 100644 index 000000000000..57d72f10a97f --- /dev/null +++ b/arch/powerpc/sysdev/xics/icp-opal.c @@ -0,0 +1,144 @@ +/* + * Copyright 2016 IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/irq.h> +#include <linux/smp.h> +#include <linux/interrupt.h> +#include <linux/cpu.h> +#include <linux/of.h> + +#include <asm/smp.h> +#include <asm/irq.h> +#include <asm/errno.h> +#include <asm/xics.h> +#include <asm/io.h> +#include <asm/opal.h> + +static void icp_opal_teardown_cpu(void) +{ + int cpu = smp_processor_id(); + + /* Clear any pending IPI */ + opal_int_set_mfrr(cpu, 0xff); +} + +static void icp_opal_flush_ipi(void) +{ + /* + * We take the ipi irq but and never return so we need to EOI the IPI, + * but want to leave our priority 0. + * + * Should we check all the other interrupts too? + * Should we be flagging idle loop instead? + * Or creating some task to be scheduled? + */ + opal_int_eoi((0x00 << 24) | XICS_IPI); +} + +static unsigned int icp_opal_get_irq(void) +{ + unsigned int xirr; + unsigned int vec; + unsigned int irq; + int64_t rc; + + rc = opal_int_get_xirr(&xirr, false); + if (rc < 0) + return NO_IRQ; + xirr = be32_to_cpu(xirr); + vec = xirr & 0x00ffffff; + if (vec == XICS_IRQ_SPURIOUS) + return NO_IRQ; + + irq = irq_find_mapping(xics_host, vec); + if (likely(irq != NO_IRQ)) { + xics_push_cppr(vec); + return irq; + } + + /* We don't have a linux mapping, so have rtas mask it. */ + xics_mask_unknown_vec(vec); + + /* We might learn about it later, so EOI it */ + opal_int_eoi(xirr); + + return NO_IRQ; +} + +static void icp_opal_set_cpu_priority(unsigned char cppr) +{ + xics_set_base_cppr(cppr); + opal_int_set_cppr(cppr); + iosync(); +} + +static void icp_opal_eoi(struct irq_data *d) +{ + unsigned int hw_irq = (unsigned int)irqd_to_hwirq(d); + int64_t rc; + + iosync(); + rc = opal_int_eoi((xics_pop_cppr() << 24) | hw_irq); + + /* + * EOI tells us whether there are more interrupts to fetch. + * + * Some HW implementations might not be able to send us another + * external interrupt in that case, so we force a replay. + */ + if (rc > 0) + force_external_irq_replay(); +} + +#ifdef CONFIG_SMP + +static void icp_opal_cause_ipi(int cpu, unsigned long data) +{ + opal_int_set_mfrr(cpu, IPI_PRIORITY); +} + +static irqreturn_t icp_opal_ipi_action(int irq, void *dev_id) +{ + int cpu = smp_processor_id(); + + opal_int_set_mfrr(cpu, 0xff); + + return smp_ipi_demux(); +} + +#endif /* CONFIG_SMP */ + +static const struct icp_ops icp_opal_ops = { + .get_irq = icp_opal_get_irq, + .eoi = icp_opal_eoi, + .set_priority = icp_opal_set_cpu_priority, + .teardown_cpu = icp_opal_teardown_cpu, + .flush_ipi = icp_opal_flush_ipi, +#ifdef CONFIG_SMP + .ipi_action = icp_opal_ipi_action, + .cause_ipi = icp_opal_cause_ipi, +#endif +}; + +int icp_opal_init(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "ibm,opal-intc"); + if (!np) + return -ENODEV; + + icp_ops = &icp_opal_ops; + + printk("XICS: Using OPAL ICP fallbacks\n"); + + return 0; +} + diff --git a/arch/powerpc/sysdev/xics/xics-common.c b/arch/powerpc/sysdev/xics/xics-common.c index 47e43b7b076b..a795a5f0301c 100644 --- a/arch/powerpc/sysdev/xics/xics-common.c +++ b/arch/powerpc/sysdev/xics/xics-common.c @@ -404,8 +404,11 @@ void __init xics_init(void) /* Fist locate ICP */ if (firmware_has_feature(FW_FEATURE_LPAR)) rc = icp_hv_init(); - if (rc < 0) + if (rc < 0) { rc = icp_native_init(); + if (rc == -ENODEV) + rc = icp_opal_init(); + } if (rc < 0) { pr_warning("XICS: Cannot find a Presentation Controller !\n"); return; diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index c5e155108be5..760545519a0b 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -184,9 +184,6 @@ static void dump_tlb_book3e(void); static int xmon_no_auto_backtrace; -extern void xmon_enter(void); -extern void xmon_leave(void); - #ifdef CONFIG_PPC64 #define REG "%.16lx" #else @@ -1685,9 +1682,78 @@ write_spr(int n, unsigned long val) catch_spr_faults = 0; } -static unsigned long regno; -extern char exc_prolog; -extern char dec_exc; +static void dump_206_sprs(void) +{ +#ifdef CONFIG_PPC64 + if (!cpu_has_feature(CPU_FTR_ARCH_206)) + return; + + /* Actually some of these pre-date 2.06, but whatevs */ + + printf("srr0 = %.16x srr1 = %.16x dsisr = %.8x\n", + mfspr(SPRN_SRR0), mfspr(SPRN_SRR1), mfspr(SPRN_DSISR)); + printf("dscr = %.16x ppr = %.16x pir = %.8x\n", + mfspr(SPRN_DSCR), mfspr(SPRN_PPR), mfspr(SPRN_PIR)); + + if (!(mfmsr() & MSR_HV)) + return; + + printf("sdr1 = %.16x hdar = %.16x hdsisr = %.8x\n", + mfspr(SPRN_SDR1), mfspr(SPRN_HDAR), mfspr(SPRN_HDSISR)); + printf("hsrr0 = %.16x hsrr1 = %.16x hdec = %.8x\n", + mfspr(SPRN_HSRR0), mfspr(SPRN_HSRR1), mfspr(SPRN_HDEC)); + printf("lpcr = %.16x pcr = %.16x lpidr = %.8x\n", + mfspr(SPRN_LPCR), mfspr(SPRN_PCR), mfspr(SPRN_LPID)); + printf("hsprg0 = %.16x hsprg1 = %.16x\n", + mfspr(SPRN_HSPRG0), mfspr(SPRN_HSPRG1)); + printf("dabr = %.16x dabrx = %.16x\n", + mfspr(SPRN_DABR), mfspr(SPRN_DABRX)); +#endif +} + +static void dump_207_sprs(void) +{ +#ifdef CONFIG_PPC64 + unsigned long msr; + + if (!cpu_has_feature(CPU_FTR_ARCH_207S)) + return; + + printf("dpdes = %.16x tir = %.16x cir = %.8x\n", + mfspr(SPRN_DPDES), mfspr(SPRN_TIR), mfspr(SPRN_CIR)); + + printf("fscr = %.16x tar = %.16x pspb = %.8x\n", + mfspr(SPRN_FSCR), mfspr(SPRN_TAR), mfspr(SPRN_PSPB)); + + msr = mfmsr(); + if (msr & MSR_TM) { + /* Only if TM has been enabled in the kernel */ + printf("tfhar = %.16x tfiar = %.16x texasr = %.16x\n", + mfspr(SPRN_TFHAR), mfspr(SPRN_TFIAR), + mfspr(SPRN_TEXASR)); + } + + printf("mmcr0 = %.16x mmcr1 = %.16x mmcr2 = %.16x\n", + mfspr(SPRN_MMCR0), mfspr(SPRN_MMCR1), mfspr(SPRN_MMCR2)); + printf("pmc1 = %.8x pmc2 = %.8x pmc3 = %.8x pmc4 = %.8x\n", + mfspr(SPRN_PMC1), mfspr(SPRN_PMC2), + mfspr(SPRN_PMC3), mfspr(SPRN_PMC4)); + printf("mmcra = %.16x siar = %.16x pmc5 = %.8x\n", + mfspr(SPRN_MMCRA), mfspr(SPRN_SIAR), mfspr(SPRN_PMC5)); + printf("sdar = %.16x sier = %.16x pmc6 = %.8x\n", + mfspr(SPRN_SDAR), mfspr(SPRN_SIER), mfspr(SPRN_PMC6)); + printf("ebbhr = %.16x ebbrr = %.16x bescr = %.16x\n", + mfspr(SPRN_EBBHR), mfspr(SPRN_EBBRR), mfspr(SPRN_BESCR)); + + if (!(msr & MSR_HV)) + return; + + printf("hfscr = %.16x dhdes = %.16x rpr = %.16x\n", + mfspr(SPRN_HFSCR), mfspr(SPRN_DHDES), mfspr(SPRN_RPR)); + printf("dawr = %.16x dawrx = %.16x ciabr = %.16x\n", + mfspr(SPRN_DAWR), mfspr(SPRN_DAWRX), mfspr(SPRN_CIABR)); +#endif +} static void dump_one_spr(int spr, bool show_unimplemented) { @@ -1719,6 +1785,7 @@ static void dump_one_spr(int spr, bool show_unimplemented) static void super_regs(void) { + static unsigned long regno; int cmd; int spr; @@ -1730,14 +1797,18 @@ static void super_regs(void) asm("mr %0,1" : "=r" (sp) :); asm("mr %0,2" : "=r" (toc) :); - printf("msr = "REG" sprg0= "REG"\n", + printf("msr = "REG" sprg0 = "REG"\n", mfmsr(), mfspr(SPRN_SPRG0)); - printf("pvr = "REG" sprg1= "REG"\n", + printf("pvr = "REG" sprg1 = "REG"\n", mfspr(SPRN_PVR), mfspr(SPRN_SPRG1)); - printf("dec = "REG" sprg2= "REG"\n", + printf("dec = "REG" sprg2 = "REG"\n", mfspr(SPRN_DEC), mfspr(SPRN_SPRG2)); - printf("sp = "REG" sprg3= "REG"\n", sp, mfspr(SPRN_SPRG3)); - printf("toc = "REG" dar = "REG"\n", toc, mfspr(SPRN_DAR)); + printf("sp = "REG" sprg3 = "REG"\n", sp, mfspr(SPRN_SPRG3)); + printf("toc = "REG" dar = "REG"\n", toc, mfspr(SPRN_DAR)); + + dump_206_sprs(); + dump_207_sprs(); + return; } case 'w': { @@ -2213,13 +2284,13 @@ static void dump_one_paca(int cpu) DUMP(p, subcore_sibling_mask, "x"); #endif - DUMP(p, user_time, "llx"); - DUMP(p, system_time, "llx"); - DUMP(p, user_time_scaled, "llx"); - DUMP(p, starttime, "llx"); - DUMP(p, starttime_user, "llx"); - DUMP(p, startspurr, "llx"); - DUMP(p, utime_sspurr, "llx"); + DUMP(p, accounting.user_time, "llx"); + DUMP(p, accounting.system_time, "llx"); + DUMP(p, accounting.user_time_scaled, "llx"); + DUMP(p, accounting.starttime, "llx"); + DUMP(p, accounting.starttime_user, "llx"); + DUMP(p, accounting.startspurr, "llx"); + DUMP(p, accounting.utime_sspurr, "llx"); DUMP(p, stolen_time, "llx"); #undef DUMP diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig index 601f64fcc890..fdb8f3e10b6f 100644 --- a/drivers/char/Kconfig +++ b/drivers/char/Kconfig @@ -178,6 +178,20 @@ config IBM_BSR of threads across a large system which avoids bouncing a cacheline between several cores on a system +config POWERNV_OP_PANEL + tristate "IBM POWERNV Operator Panel Display support" + depends on PPC_POWERNV + default m + help + If you say Y here, a special character device node, /dev/op_panel, + will be created which exposes the operator panel display on IBM + Power Systems machines with FSPs. + + If you don't require access to the operator panel display from user + space, say N. + + If unsure, say M here to build it as a module called powernv-op-panel. + source "drivers/char/ipmi/Kconfig" config DS1620 diff --git a/drivers/char/Makefile b/drivers/char/Makefile index d8a7579300d2..55d16bf3ccc5 100644 --- a/drivers/char/Makefile +++ b/drivers/char/Makefile @@ -60,3 +60,4 @@ js-rtc-y = rtc.o obj-$(CONFIG_TILE_SROM) += tile-srom.o obj-$(CONFIG_XILLYBUS) += xillybus/ +obj-$(CONFIG_POWERNV_OP_PANEL) += powernv-op-panel.o diff --git a/drivers/char/powernv-op-panel.c b/drivers/char/powernv-op-panel.c new file mode 100644 index 000000000000..a45dabcc8e10 --- /dev/null +++ b/drivers/char/powernv-op-panel.c @@ -0,0 +1,223 @@ +/* + * OPAL Operator Panel Display Driver + * + * Copyright 2016, Suraj Jitindar Singh, IBM Corporation. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/fs.h> +#include <linux/device.h> +#include <linux/errno.h> +#include <linux/mutex.h> +#include <linux/of.h> +#include <linux/slab.h> +#include <linux/platform_device.h> +#include <linux/miscdevice.h> + +#include <asm/opal.h> + +/* + * This driver creates a character device (/dev/op_panel) which exposes the + * operator panel (character LCD display) on IBM Power Systems machines + * with FSPs. + * A character buffer written to the device will be displayed on the + * operator panel. + */ + +static DEFINE_MUTEX(oppanel_mutex); + +static u32 num_lines, oppanel_size; +static oppanel_line_t *oppanel_lines; +static char *oppanel_data; + +static loff_t oppanel_llseek(struct file *filp, loff_t offset, int whence) +{ + return fixed_size_llseek(filp, offset, whence, oppanel_size); +} + +static ssize_t oppanel_read(struct file *filp, char __user *userbuf, size_t len, + loff_t *f_pos) +{ + return simple_read_from_buffer(userbuf, len, f_pos, oppanel_data, + oppanel_size); +} + +static int __op_panel_update_display(void) +{ + struct opal_msg msg; + int rc, token; + + token = opal_async_get_token_interruptible(); + if (token < 0) { + if (token != -ERESTARTSYS) + pr_debug("Couldn't get OPAL async token [token=%d]\n", + token); + return token; + } + + rc = opal_write_oppanel_async(token, oppanel_lines, num_lines); + switch (rc) { + case OPAL_ASYNC_COMPLETION: + rc = opal_async_wait_response(token, &msg); + if (rc) { + pr_debug("Failed to wait for async response [rc=%d]\n", + rc); + break; + } + rc = opal_get_async_rc(msg); + if (rc != OPAL_SUCCESS) { + pr_debug("OPAL async call returned failed [rc=%d]\n", + rc); + break; + } + case OPAL_SUCCESS: + break; + default: + pr_debug("OPAL write op-panel call failed [rc=%d]\n", rc); + } + + opal_async_release_token(token); + return rc; +} + +static ssize_t oppanel_write(struct file *filp, const char __user *userbuf, + size_t len, loff_t *f_pos) +{ + loff_t f_pos_prev = *f_pos; + ssize_t ret; + int rc; + + if (!*f_pos) + memset(oppanel_data, ' ', oppanel_size); + else if (*f_pos >= oppanel_size) + return -EFBIG; + + ret = simple_write_to_buffer(oppanel_data, oppanel_size, f_pos, userbuf, + len); + if (ret > 0) { + rc = __op_panel_update_display(); + if (rc != OPAL_SUCCESS) { + pr_err_ratelimited("OPAL call failed to write to op panel display [rc=%d]\n", + rc); + *f_pos = f_pos_prev; + return -EIO; + } + } + return ret; +} + +static int oppanel_open(struct inode *inode, struct file *filp) +{ + if (!mutex_trylock(&oppanel_mutex)) { + pr_debug("Device Busy\n"); + return -EBUSY; + } + return 0; +} + +static int oppanel_release(struct inode *inode, struct file *filp) +{ + mutex_unlock(&oppanel_mutex); + return 0; +} + +static const struct file_operations oppanel_fops = { + .owner = THIS_MODULE, + .llseek = oppanel_llseek, + .read = oppanel_read, + .write = oppanel_write, + .open = oppanel_open, + .release = oppanel_release +}; + +static struct miscdevice oppanel_dev = { + .minor = MISC_DYNAMIC_MINOR, + .name = "op_panel", + .fops = &oppanel_fops +}; + +static int oppanel_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + u32 line_len; + int rc, i; + + rc = of_property_read_u32(np, "#length", &line_len); + if (rc) { + pr_err_ratelimited("Operator panel length property not found\n"); + return rc; + } + rc = of_property_read_u32(np, "#lines", &num_lines); + if (rc) { + pr_err_ratelimited("Operator panel lines property not found\n"); + return rc; + } + oppanel_size = line_len * num_lines; + + pr_devel("Operator panel of size %u found with %u lines of length %u\n", + oppanel_size, num_lines, line_len); + + oppanel_data = kcalloc(oppanel_size, sizeof(*oppanel_data), GFP_KERNEL); + if (!oppanel_data) + return -ENOMEM; + + oppanel_lines = kcalloc(num_lines, sizeof(oppanel_line_t), GFP_KERNEL); + if (!oppanel_lines) { + rc = -ENOMEM; + goto free_oppanel_data; + } + + memset(oppanel_data, ' ', oppanel_size); + for (i = 0; i < num_lines; i++) { + oppanel_lines[i].line_len = cpu_to_be64(line_len); + oppanel_lines[i].line = cpu_to_be64(__pa(&oppanel_data[i * + line_len])); + } + + rc = misc_register(&oppanel_dev); + if (rc) { + pr_err_ratelimited("Failed to register as misc device\n"); + goto free_oppanel; + } + + return 0; + +free_oppanel: + kfree(oppanel_lines); +free_oppanel_data: + kfree(oppanel_data); + return rc; +} + +static int oppanel_remove(struct platform_device *pdev) +{ + misc_deregister(&oppanel_dev); + kfree(oppanel_lines); + kfree(oppanel_data); + return 0; +} + +static const struct of_device_id oppanel_match[] = { + { .compatible = "ibm,opal-oppanel" }, + { }, +}; + +static struct platform_driver oppanel_driver = { + .driver = { + .name = "powernv-op-panel", + .of_match_table = oppanel_match, + }, + .probe = oppanel_probe, + .remove = oppanel_remove, +}; + +module_platform_driver(oppanel_driver); + +MODULE_DEVICE_TABLE(of, oppanel_match); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("PowerNV Operator Panel LCD Display Driver"); +MODULE_AUTHOR("Suraj Jitindar Singh <sjitindarsingh@gmail.com>"); diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c index e12dc30d8864..f7ca891b5b59 100644 --- a/drivers/cpuidle/cpuidle-powernv.c +++ b/drivers/cpuidle/cpuidle-powernv.c @@ -20,7 +20,7 @@ #include <asm/opal.h> #include <asm/runlatch.h> -#define MAX_POWERNV_IDLE_STATES 8 +#define POWERNV_THRESHOLD_LATENCY_NS 200000 struct cpuidle_driver powernv_idle_driver = { .name = "powernv_idle", @@ -29,6 +29,9 @@ struct cpuidle_driver powernv_idle_driver = { static int max_idle_state; static struct cpuidle_state *cpuidle_state_table; + +static u64 stop_psscr_table[CPUIDLE_STATE_MAX]; + static u64 snooze_timeout; static bool snooze_timeout_en; @@ -93,16 +96,27 @@ static int fastsleep_loop(struct cpuidle_device *dev, return index; } #endif + +static int stop_loop(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) +{ + ppc64_runlatch_off(); + power9_idle_stop(stop_psscr_table[index]); + ppc64_runlatch_on(); + return index; +} + /* * States for dedicated partition case. */ -static struct cpuidle_state powernv_states[MAX_POWERNV_IDLE_STATES] = { +static struct cpuidle_state powernv_states[CPUIDLE_STATE_MAX] = { { /* Snooze */ .name = "snooze", .desc = "snooze", .exit_latency = 0, .target_residency = 0, - .enter = &snooze_loop }, + .enter = snooze_loop }, }; static int powernv_cpuidle_add_cpu_notifier(struct notifier_block *n, @@ -168,7 +182,11 @@ static int powernv_add_idle_states(void) struct device_node *power_mgt; int nr_idle_states = 1; /* Snooze */ int dt_idle_states; - u32 *latency_ns, *residency_ns, *flags; + u32 latency_ns[CPUIDLE_STATE_MAX]; + u32 residency_ns[CPUIDLE_STATE_MAX]; + u32 flags[CPUIDLE_STATE_MAX]; + u64 psscr_val[CPUIDLE_STATE_MAX]; + const char *names[CPUIDLE_STATE_MAX]; int i, rc; /* Currently we have snooze statically defined */ @@ -186,26 +204,55 @@ static int powernv_add_idle_states(void) goto out; } - flags = kzalloc(sizeof(*flags) * dt_idle_states, GFP_KERNEL); + /* + * Since snooze is used as first idle state, max idle states allowed is + * CPUIDLE_STATE_MAX -1 + */ + if (dt_idle_states > CPUIDLE_STATE_MAX - 1) { + pr_warn("cpuidle-powernv: discovered idle states more than allowed"); + dt_idle_states = CPUIDLE_STATE_MAX - 1; + } + if (of_property_read_u32_array(power_mgt, "ibm,cpu-idle-state-flags", flags, dt_idle_states)) { pr_warn("cpuidle-powernv : missing ibm,cpu-idle-state-flags in DT\n"); - goto out_free_flags; + goto out; } - latency_ns = kzalloc(sizeof(*latency_ns) * dt_idle_states, GFP_KERNEL); - rc = of_property_read_u32_array(power_mgt, - "ibm,cpu-idle-state-latencies-ns", latency_ns, dt_idle_states); - if (rc) { + if (of_property_read_u32_array(power_mgt, + "ibm,cpu-idle-state-latencies-ns", latency_ns, + dt_idle_states)) { pr_warn("cpuidle-powernv: missing ibm,cpu-idle-state-latencies-ns in DT\n"); - goto out_free_latency; + goto out; + } + if (of_property_read_string_array(power_mgt, + "ibm,cpu-idle-state-names", names, dt_idle_states) < 0) { + pr_warn("cpuidle-powernv: missing ibm,cpu-idle-state-names in DT\n"); + goto out; } - residency_ns = kzalloc(sizeof(*residency_ns) * dt_idle_states, GFP_KERNEL); + /* + * If the idle states use stop instruction, probe for psscr values + * which are necessary to specify required stop level. + */ + if (flags[0] & (OPAL_PM_STOP_INST_FAST | OPAL_PM_STOP_INST_DEEP)) + if (of_property_read_u64_array(power_mgt, + "ibm,cpu-idle-state-psscr", psscr_val, dt_idle_states)) { + pr_warn("cpuidle-powernv: missing ibm,cpu-idle-states-psscr in DT\n"); + goto out; + } + rc = of_property_read_u32_array(power_mgt, "ibm,cpu-idle-state-residency-ns", residency_ns, dt_idle_states); for (i = 0; i < dt_idle_states; i++) { + /* + * If an idle state has exit latency beyond + * POWERNV_THRESHOLD_LATENCY_NS then don't use it + * in cpu-idle. + */ + if (latency_ns[i] > POWERNV_THRESHOLD_LATENCY_NS) + continue; /* * Cpuidle accepts exit_latency and target_residency in us. @@ -217,7 +264,17 @@ static int powernv_add_idle_states(void) strcpy(powernv_states[nr_idle_states].desc, "Nap"); powernv_states[nr_idle_states].flags = 0; powernv_states[nr_idle_states].target_residency = 100; - powernv_states[nr_idle_states].enter = &nap_loop; + powernv_states[nr_idle_states].enter = nap_loop; + } else if ((flags[i] & OPAL_PM_STOP_INST_FAST) && + !(flags[i] & OPAL_PM_TIMEBASE_STOP)) { + strncpy(powernv_states[nr_idle_states].name, + names[i], CPUIDLE_NAME_LEN); + strncpy(powernv_states[nr_idle_states].desc, + names[i], CPUIDLE_NAME_LEN); + powernv_states[nr_idle_states].flags = 0; + + powernv_states[nr_idle_states].enter = stop_loop; + stop_psscr_table[nr_idle_states] = psscr_val[i]; } /* @@ -232,7 +289,17 @@ static int powernv_add_idle_states(void) strcpy(powernv_states[nr_idle_states].desc, "FastSleep"); powernv_states[nr_idle_states].flags = CPUIDLE_FLAG_TIMER_STOP; powernv_states[nr_idle_states].target_residency = 300000; - powernv_states[nr_idle_states].enter = &fastsleep_loop; + powernv_states[nr_idle_states].enter = fastsleep_loop; + } else if ((flags[i] & OPAL_PM_STOP_INST_DEEP) && + (flags[i] & OPAL_PM_TIMEBASE_STOP)) { + strncpy(powernv_states[nr_idle_states].name, + names[i], CPUIDLE_NAME_LEN); + strncpy(powernv_states[nr_idle_states].desc, + names[i], CPUIDLE_NAME_LEN); + + powernv_states[nr_idle_states].flags = CPUIDLE_FLAG_TIMER_STOP; + powernv_states[nr_idle_states].enter = stop_loop; + stop_psscr_table[nr_idle_states] = psscr_val[i]; } #endif powernv_states[nr_idle_states].exit_latency = @@ -245,12 +312,6 @@ static int powernv_add_idle_states(void) nr_idle_states++; } - - kfree(residency_ns); -out_free_latency: - kfree(latency_ns); -out_free_flags: - kfree(flags); out: return nr_idle_states; } diff --git a/drivers/crypto/vmx/Kconfig b/drivers/crypto/vmx/Kconfig index 89d8208d9851..a83ead109d5f 100644 --- a/drivers/crypto/vmx/Kconfig +++ b/drivers/crypto/vmx/Kconfig @@ -1,7 +1,7 @@ config CRYPTO_DEV_VMX_ENCRYPT tristate "Encryption acceleration support on P8 CPU" depends on CRYPTO_DEV_VMX - default y + default m help Support for VMX cryptographic acceleration instructions on Power8 CPU. This module supports acceleration for AES and GHASH in hardware. If you diff --git a/drivers/crypto/vmx/vmx.c b/drivers/crypto/vmx/vmx.c index f688c32fbcc7..31a98dc6f849 100644 --- a/drivers/crypto/vmx/vmx.c +++ b/drivers/crypto/vmx/vmx.c @@ -23,6 +23,7 @@ #include <linux/moduleparam.h> #include <linux/types.h> #include <linux/err.h> +#include <linux/cpufeature.h> #include <linux/crypto.h> #include <asm/cputable.h> #include <crypto/internal/hash.h> @@ -45,9 +46,6 @@ int __init p8_init(void) int ret = 0; struct crypto_alg **alg_it; - if (!(cur_cpu_spec->cpu_user_features2 & PPC_FEATURE2_VEC_CRYPTO)) - return -ENODEV; - for (alg_it = algs; *alg_it; alg_it++) { ret = crypto_register_alg(*alg_it); printk(KERN_INFO "crypto_register_alg '%s' = %d\n", @@ -80,7 +78,7 @@ void __exit p8_exit(void) crypto_unregister_shash(&p8_ghash_alg); } -module_init(p8_init); +module_cpu_feature_match(PPC_MODULE_FEATURE_VEC_CRYPTO, p8_init); module_exit(p8_exit); MODULE_AUTHOR("Marcelo Cerri<mhcerri@br.ibm.com>"); diff --git a/drivers/i2c/busses/i2c-opal.c b/drivers/i2c/busses/i2c-opal.c index 75dd6d041241..11e2a1fc10e9 100644 --- a/drivers/i2c/busses/i2c-opal.c +++ b/drivers/i2c/busses/i2c-opal.c @@ -71,7 +71,7 @@ static int i2c_opal_send_request(u32 bus_id, struct opal_i2c_request *req) if (rc) goto exit; - rc = be64_to_cpu(msg.params[1]); + rc = opal_get_async_rc(msg); if (rc != OPAL_SUCCESS) { rc = i2c_opal_translate_error(rc); goto exit; diff --git a/drivers/leds/leds-powernv.c b/drivers/leds/leds-powernv.c index dfb8bd390125..b2a98c7b521b 100644 --- a/drivers/leds/leds-powernv.c +++ b/drivers/leds/leds-powernv.c @@ -118,7 +118,7 @@ static int powernv_led_set(struct powernv_led_data *powernv_led, goto out_token; } - rc = be64_to_cpu(msg.params[1]); + rc = opal_get_async_rc(msg); if (rc != OPAL_SUCCESS) dev_err(dev, "%s : OAPL async call returned failed [rc=%d]\n", __func__, rc); diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index d531f804455d..d6f72c826c1c 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -38,6 +38,7 @@ #include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/slab.h> +#include <linux/memblock.h> #include <asm/byteorder.h> #include <asm/io.h> @@ -99,6 +100,7 @@ static DEFINE_MUTEX(smu_mutex); static struct smu_device *smu; static DEFINE_MUTEX(smu_part_access); static int smu_irq_inited; +static unsigned long smu_cmdbuf_abs; static void smu_i2c_retry(unsigned long data); @@ -479,8 +481,13 @@ int __init smu_init (void) printk(KERN_INFO "SMU: Driver %s %s\n", VERSION, AUTHOR); + /* + * SMU based G5s need some memory below 2Gb. Thankfully this is + * called at a time where memblock is still available. + */ + smu_cmdbuf_abs = memblock_alloc_base(4096, 4096, 0x80000000UL); if (smu_cmdbuf_abs == 0) { - printk(KERN_ERR "SMU: Command buffer not allocated !\n"); + printk(KERN_ERR "SMU: Command buffer allocation failed !\n"); ret = -EINVAL; goto fail_np; } diff --git a/drivers/misc/cxl/Kconfig b/drivers/misc/cxl/Kconfig index 8756d06e2bb8..b75cf830d08a 100644 --- a/drivers/misc/cxl/Kconfig +++ b/drivers/misc/cxl/Kconfig @@ -7,11 +7,7 @@ config CXL_BASE default n select PPC_COPRO_BASE -config CXL_KERNEL_API - bool - default n - -config CXL_EEH +config CXL_AFU_DRIVER_OPS bool default n @@ -19,8 +15,7 @@ config CXL tristate "Support for IBM Coherent Accelerators (CXL)" depends on PPC_POWERNV && PCI_MSI && EEH select CXL_BASE - select CXL_KERNEL_API - select CXL_EEH + select CXL_AFU_DRIVER_OPS default m help Select this option to enable driver support for IBM Coherent @@ -33,3 +28,11 @@ config CXL CAPI adapters are found in POWER8 based systems. If unsure, say N. + +config CXL_BIMODAL + bool "Support for bi-modal CAPI cards" + depends on HOTPLUG_PCI_POWERNV = y && CXL || HOTPLUG_PCI_POWERNV = m && CXL = m + default y + help + Select this option to enable support for bi-modal CAPI cards, such as + the Mellanox CX-4. diff --git a/drivers/misc/cxl/Makefile b/drivers/misc/cxl/Makefile index 8a55c1aa11aa..56e9a4732ef0 100644 --- a/drivers/misc/cxl/Makefile +++ b/drivers/misc/cxl/Makefile @@ -3,7 +3,7 @@ ccflags-$(CONFIG_PPC_WERROR) += -Werror cxl-y += main.o file.o irq.o fault.o native.o cxl-y += context.o sysfs.o debugfs.o pci.o trace.o -cxl-y += vphb.o api.o +cxl-y += vphb.o phb.o api.o cxl-$(CONFIG_PPC_PSERIES) += flash.o guest.o of.o hcalls.o obj-$(CONFIG_CXL) += cxl.o obj-$(CONFIG_CXL_BASE) += base.o diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c index 6d228ccd884d..f3d34b941f85 100644 --- a/drivers/misc/cxl/api.c +++ b/drivers/misc/cxl/api.c @@ -13,6 +13,8 @@ #include <linux/file.h> #include <misc/cxl.h> #include <linux/fs.h> +#include <asm/pnv-pci.h> +#include <linux/msi.h> #include "cxl.h" @@ -24,6 +26,8 @@ struct cxl_context *cxl_dev_context_init(struct pci_dev *dev) int rc; afu = cxl_pci_to_afu(dev); + if (IS_ERR(afu)) + return ERR_CAST(afu); ctx = cxl_context_alloc(); if (IS_ERR(ctx)) { @@ -94,6 +98,42 @@ static irq_hw_number_t cxl_find_afu_irq(struct cxl_context *ctx, int num) return 0; } +int _cxl_next_msi_hwirq(struct pci_dev *pdev, struct cxl_context **ctx, int *afu_irq) +{ + if (*ctx == NULL || *afu_irq == 0) { + *afu_irq = 1; + *ctx = cxl_get_context(pdev); + } else { + (*afu_irq)++; + if (*afu_irq > cxl_get_max_irqs_per_process(pdev)) { + *ctx = list_next_entry(*ctx, extra_irq_contexts); + *afu_irq = 1; + } + } + return cxl_find_afu_irq(*ctx, *afu_irq); +} +/* Exported via cxl_base */ + +int cxl_set_priv(struct cxl_context *ctx, void *priv) +{ + if (!ctx) + return -EINVAL; + + ctx->priv = priv; + + return 0; +} +EXPORT_SYMBOL_GPL(cxl_set_priv); + +void *cxl_get_priv(struct cxl_context *ctx) +{ + if (!ctx) + return ERR_PTR(-EINVAL); + + return ctx->priv; +} +EXPORT_SYMBOL_GPL(cxl_get_priv); + int cxl_allocate_afu_irqs(struct cxl_context *ctx, int num) { int res; @@ -102,7 +142,10 @@ int cxl_allocate_afu_irqs(struct cxl_context *ctx, int num) if (num == 0) num = ctx->afu->pp_irqs; res = afu_allocate_irqs(ctx, num); - if (!res && !cpu_has_feature(CPU_FTR_HVMODE)) { + if (res) + return res; + + if (!cpu_has_feature(CPU_FTR_HVMODE)) { /* In a guest, the PSL interrupt is not multiplexed. It was * allocated above, and we need to set its handler */ @@ -110,6 +153,13 @@ int cxl_allocate_afu_irqs(struct cxl_context *ctx, int num) if (hwirq) cxl_map_irq(ctx->afu->adapter, hwirq, cxl_ops->psl_interrupt, ctx, "psl"); } + + if (ctx->status == STARTED) { + if (cxl_ops->update_ivtes) + cxl_ops->update_ivtes(ctx); + else WARN(1, "BUG: cxl_allocate_afu_irqs must be called prior to starting the context on this platform\n"); + } + return res; } EXPORT_SYMBOL_GPL(cxl_allocate_afu_irqs); @@ -323,6 +373,23 @@ struct cxl_context *cxl_fops_get_context(struct file *file) } EXPORT_SYMBOL_GPL(cxl_fops_get_context); +void cxl_set_driver_ops(struct cxl_context *ctx, + struct cxl_afu_driver_ops *ops) +{ + WARN_ON(!ops->fetch_event || !ops->event_delivered); + atomic_set(&ctx->afu_driver_events, 0); + ctx->afu_driver_ops = ops; +} +EXPORT_SYMBOL_GPL(cxl_set_driver_ops); + +void cxl_context_events_pending(struct cxl_context *ctx, + unsigned int new_events) +{ + atomic_add(new_events, &ctx->afu_driver_events); + wake_up_all(&ctx->wq); +} +EXPORT_SYMBOL_GPL(cxl_context_events_pending); + int cxl_start_work(struct cxl_context *ctx, struct cxl_ioctl_start_work *work) { @@ -390,7 +457,106 @@ EXPORT_SYMBOL_GPL(cxl_perst_reloads_same_image); ssize_t cxl_read_adapter_vpd(struct pci_dev *dev, void *buf, size_t count) { struct cxl_afu *afu = cxl_pci_to_afu(dev); + if (IS_ERR(afu)) + return -ENODEV; return cxl_ops->read_adapter_vpd(afu->adapter, buf, count); } EXPORT_SYMBOL_GPL(cxl_read_adapter_vpd); + +int cxl_set_max_irqs_per_process(struct pci_dev *dev, int irqs) +{ + struct cxl_afu *afu = cxl_pci_to_afu(dev); + if (IS_ERR(afu)) + return -ENODEV; + + if (irqs > afu->adapter->user_irqs) + return -EINVAL; + + /* Limit user_irqs to prevent the user increasing this via sysfs */ + afu->adapter->user_irqs = irqs; + afu->irqs_max = irqs; + + return 0; +} +EXPORT_SYMBOL_GPL(cxl_set_max_irqs_per_process); + +int cxl_get_max_irqs_per_process(struct pci_dev *dev) +{ + struct cxl_afu *afu = cxl_pci_to_afu(dev); + if (IS_ERR(afu)) + return -ENODEV; + + return afu->irqs_max; +} +EXPORT_SYMBOL_GPL(cxl_get_max_irqs_per_process); + +/* + * This is a special interrupt allocation routine called from the PHB's MSI + * setup function. When capi interrupts are allocated in this manner they must + * still be associated with a running context, but since the MSI APIs have no + * way to specify this we use the default context associated with the device. + * + * The Mellanox CX4 has a hardware limitation that restricts the maximum AFU + * interrupt number, so in order to overcome this their driver informs us of + * the restriction by setting the maximum interrupts per context, and we + * allocate additional contexts as necessary so that we can keep the AFU + * interrupt number within the supported range. + */ +int _cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) +{ + struct cxl_context *ctx, *new_ctx, *default_ctx; + int remaining; + int rc; + + ctx = default_ctx = cxl_get_context(pdev); + if (WARN_ON(!default_ctx)) + return -ENODEV; + + remaining = nvec; + while (remaining > 0) { + rc = cxl_allocate_afu_irqs(ctx, min(remaining, ctx->afu->irqs_max)); + if (rc) { + pr_warn("%s: Failed to find enough free MSIs\n", pci_name(pdev)); + return rc; + } + remaining -= ctx->afu->irqs_max; + + if (ctx != default_ctx && default_ctx->status == STARTED) { + WARN_ON(cxl_start_context(ctx, + be64_to_cpu(default_ctx->elem->common.wed), + NULL)); + } + + if (remaining > 0) { + new_ctx = cxl_dev_context_init(pdev); + if (!new_ctx) { + pr_warn("%s: Failed to allocate enough contexts for MSIs\n", pci_name(pdev)); + return -ENOSPC; + } + list_add(&new_ctx->extra_irq_contexts, &ctx->extra_irq_contexts); + ctx = new_ctx; + } + } + + return 0; +} +/* Exported via cxl_base */ + +void _cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev) +{ + struct cxl_context *ctx, *pos, *tmp; + + ctx = cxl_get_context(pdev); + if (WARN_ON(!ctx)) + return; + + cxl_free_afu_irqs(ctx); + list_for_each_entry_safe(pos, tmp, &ctx->extra_irq_contexts, extra_irq_contexts) { + cxl_stop_context(pos); + cxl_free_afu_irqs(pos); + list_del(&pos->extra_irq_contexts); + cxl_release_context(pos); + } +} +/* Exported via cxl_base */ diff --git a/drivers/misc/cxl/base.c b/drivers/misc/cxl/base.c index 9b90ec6c07cd..cd54ce6f6230 100644 --- a/drivers/misc/cxl/base.c +++ b/drivers/misc/cxl/base.c @@ -54,6 +54,19 @@ static inline void cxl_calls_put(struct cxl_calls *calls) { } #endif /* CONFIG_CXL_MODULE */ +/* AFU refcount management */ +struct cxl_afu *cxl_afu_get(struct cxl_afu *afu) +{ + return (get_device(&afu->dev) == NULL) ? NULL : afu; +} +EXPORT_SYMBOL_GPL(cxl_afu_get); + +void cxl_afu_put(struct cxl_afu *afu) +{ + put_device(&afu->dev); +} +EXPORT_SYMBOL_GPL(cxl_afu_put); + void cxl_slbia(struct mm_struct *mm) { struct cxl_calls *calls; @@ -93,9 +106,92 @@ int cxl_update_properties(struct device_node *dn, } EXPORT_SYMBOL_GPL(cxl_update_properties); +/* + * API calls into the driver that may be called from the PHB code and must be + * built in. + */ +bool cxl_pci_associate_default_context(struct pci_dev *dev, struct cxl_afu *afu) +{ + bool ret; + struct cxl_calls *calls; + + calls = cxl_calls_get(); + if (!calls) + return false; + + ret = calls->cxl_pci_associate_default_context(dev, afu); + + cxl_calls_put(calls); + + return ret; +} +EXPORT_SYMBOL_GPL(cxl_pci_associate_default_context); + +void cxl_pci_disable_device(struct pci_dev *dev) +{ + struct cxl_calls *calls; + + calls = cxl_calls_get(); + if (!calls) + return; + + calls->cxl_pci_disable_device(dev); + + cxl_calls_put(calls); +} +EXPORT_SYMBOL_GPL(cxl_pci_disable_device); + +int cxl_next_msi_hwirq(struct pci_dev *pdev, struct cxl_context **ctx, int *afu_irq) +{ + int ret; + struct cxl_calls *calls; + + calls = cxl_calls_get(); + if (!calls) + return -EBUSY; + + ret = calls->cxl_next_msi_hwirq(pdev, ctx, afu_irq); + + cxl_calls_put(calls); + + return ret; +} +EXPORT_SYMBOL_GPL(cxl_next_msi_hwirq); + +int cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) +{ + int ret; + struct cxl_calls *calls; + + calls = cxl_calls_get(); + if (!calls) + return false; + + ret = calls->cxl_cx4_setup_msi_irqs(pdev, nvec, type); + + cxl_calls_put(calls); + + return ret; +} +EXPORT_SYMBOL_GPL(cxl_cx4_setup_msi_irqs); + +void cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev) +{ + struct cxl_calls *calls; + + calls = cxl_calls_get(); + if (!calls) + return; + + calls->cxl_cx4_teardown_msi_irqs(pdev); + + cxl_calls_put(calls); +} +EXPORT_SYMBOL_GPL(cxl_cx4_teardown_msi_irqs); + static int __init cxl_base_init(void) { - struct device_node *np = NULL; + struct device_node *np; struct platform_device *dev; int count = 0; @@ -105,8 +201,7 @@ static int __init cxl_base_init(void) if (cpu_has_feature(CPU_FTR_HVMODE)) return 0; - while ((np = of_find_compatible_node(np, NULL, - "ibm,coherent-platform-facility"))) { + for_each_compatible_node(np, NULL, "ibm,coherent-platform-facility") { dev = of_platform_device_create(np, NULL, NULL); if (dev) count++; @@ -114,5 +209,4 @@ static int __init cxl_base_init(void) pr_devel("Found %d cxl device(s)\n", count); return 0; } - -module_init(cxl_base_init); +device_initcall(cxl_base_init); diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c index 26d206b1d08c..bdee9a01ef35 100644 --- a/drivers/misc/cxl/context.c +++ b/drivers/misc/cxl/context.c @@ -67,6 +67,9 @@ int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master, ctx->pending_fault = false; ctx->pending_afu_err = false; + INIT_LIST_HEAD(&ctx->irq_names); + INIT_LIST_HEAD(&ctx->extra_irq_contexts); + /* * When we have to destroy all contexts in cxl_context_detach_all() we * end up with afu_release_irqs() called from inside a @@ -87,7 +90,8 @@ int cxl_context_init(struct cxl_context *ctx, struct cxl_afu *afu, bool master, */ mutex_lock(&afu->contexts_lock); idr_preload(GFP_KERNEL); - i = idr_alloc(&ctx->afu->contexts_idr, ctx, 0, + i = idr_alloc(&ctx->afu->contexts_idr, ctx, + ctx->afu->adapter->native->sl_ops->min_pe, ctx->afu->num_procs, GFP_NOWAIT); idr_preload_end(); mutex_unlock(&afu->contexts_lock); diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 4fe50788ff45..de090533f18c 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -24,6 +24,7 @@ #include <asm/reg.h> #include <misc/cxl-base.h> +#include <misc/cxl.h> #include <uapi/misc/cxl.h> extern uint cxl_verbose; @@ -34,7 +35,7 @@ extern uint cxl_verbose; * Bump version each time a user API change is made, whether it is * backwards compatible ot not. */ -#define CXL_API_VERSION 2 +#define CXL_API_VERSION 3 #define CXL_API_VERSION_COMPATIBLE 1 /* @@ -81,6 +82,7 @@ static const cxl_p1_reg_t CXL_PSL_TLBIA = {0x00A8}; static const cxl_p1_reg_t CXL_PSL_AFUSEL = {0x00B0}; /* 0x00C0:7EFF Implementation dependent area */ +/* PSL registers */ static const cxl_p1_reg_t CXL_PSL_FIR1 = {0x0100}; static const cxl_p1_reg_t CXL_PSL_FIR2 = {0x0108}; static const cxl_p1_reg_t CXL_PSL_Timebase = {0x0110}; @@ -91,6 +93,11 @@ static const cxl_p1_reg_t CXL_PSL_FIR_CNTL = {0x0148}; static const cxl_p1_reg_t CXL_PSL_DSNDCTL = {0x0150}; static const cxl_p1_reg_t CXL_PSL_SNWRALLOC = {0x0158}; static const cxl_p1_reg_t CXL_PSL_TRACE = {0x0170}; +/* XSL registers (Mellanox CX4) */ +static const cxl_p1_reg_t CXL_XSL_Timebase = {0x0100}; +static const cxl_p1_reg_t CXL_XSL_TB_CTLSTAT = {0x0108}; +static const cxl_p1_reg_t CXL_XSL_FEC = {0x0158}; +static const cxl_p1_reg_t CXL_XSL_DSNCTL = {0x0168}; /* 0x7F00:7FFF Reserved PCIe MSI-X Pending Bit Array area */ /* 0x8000:FFFF Reserved PCIe MSI-X Table Area */ @@ -182,6 +189,18 @@ static const cxl_p2n_reg_t CXL_PSL_WED_An = {0x0A0}; #define CXL_PSL_ID_An_F (1ull << (63-31)) #define CXL_PSL_ID_An_L (1ull << (63-30)) +/****** CXL_PSL_SERR_An ****************************************************/ +#define CXL_PSL_SERR_An_afuto (1ull << (63-0)) +#define CXL_PSL_SERR_An_afudis (1ull << (63-1)) +#define CXL_PSL_SERR_An_afuov (1ull << (63-2)) +#define CXL_PSL_SERR_An_badsrc (1ull << (63-3)) +#define CXL_PSL_SERR_An_badctx (1ull << (63-4)) +#define CXL_PSL_SERR_An_llcmdis (1ull << (63-5)) +#define CXL_PSL_SERR_An_llcmdto (1ull << (63-6)) +#define CXL_PSL_SERR_An_afupar (1ull << (63-7)) +#define CXL_PSL_SERR_An_afudup (1ull << (63-8)) +#define CXL_PSL_SERR_An_AE (1ull << (63-30)) + /****** CXL_PSL_SCNTL_An ****************************************************/ #define CXL_PSL_SCNTL_An_CR (0x1ull << (63-15)) /* Programming Modes: */ @@ -421,18 +440,6 @@ struct cxl_afu { bool enabled; }; -/* AFU refcount management */ -static inline struct cxl_afu *cxl_afu_get(struct cxl_afu *afu) -{ - - return (get_device(&afu->dev) == NULL) ? NULL : afu; -} - -static inline void cxl_afu_put(struct cxl_afu *afu) -{ - put_device(&afu->dev); -} - struct cxl_irq_name { struct list_head list; @@ -477,6 +484,9 @@ struct cxl_context { /* Only used in PR mode */ u64 process_token; + /* driver private data */ + void *priv; + unsigned long *irq_bitmap; /* Accessed from IRQ context */ struct cxl_irq_ranges irqs; struct list_head irq_names; @@ -522,7 +532,36 @@ struct cxl_context { bool pending_fault; bool pending_afu_err; + /* Used by AFU drivers for driver specific event delivery */ + struct cxl_afu_driver_ops *afu_driver_ops; + atomic_t afu_driver_events; + struct rcu_head rcu; + + /* + * Only used when more interrupts are allocated via + * pci_enable_msix_range than are supported in the default context, to + * use additional contexts to overcome the limitation. i.e. Mellanox + * CX4 only: + */ + struct list_head extra_irq_contexts; +}; + +struct cxl_service_layer_ops { + int (*adapter_regs_init)(struct cxl *adapter, struct pci_dev *dev); + int (*afu_regs_init)(struct cxl_afu *afu); + int (*register_serr_irq)(struct cxl_afu *afu); + void (*release_serr_irq)(struct cxl_afu *afu); + void (*debugfs_add_adapter_sl_regs)(struct cxl *adapter, struct dentry *dir); + void (*debugfs_add_afu_sl_regs)(struct cxl_afu *afu, struct dentry *dir); + void (*psl_irq_dump_registers)(struct cxl_context *ctx); + void (*err_irq_dump_registers)(struct cxl *adapter); + void (*debugfs_stop_trace)(struct cxl *adapter); + void (*write_timebase_ctrl)(struct cxl *adapter); + u64 (*timebase_read)(struct cxl *adapter); + int capi_mode; + bool needs_reset_before_disable; + int min_pe; }; struct cxl_native { @@ -533,6 +572,7 @@ struct cxl_native { irq_hw_number_t err_hwirq; unsigned int err_virq; u64 ps_off; + const struct cxl_service_layer_ops *sl_ops; }; struct cxl_guest { @@ -688,9 +728,21 @@ static inline u64 cxl_p2n_read(struct cxl_afu *afu, cxl_p2n_reg_t reg) ssize_t cxl_pci_afu_read_err_buffer(struct cxl_afu *afu, char *buf, loff_t off, size_t count); +/* Internal functions wrapped in cxl_base to allow PHB to call them */ +bool _cxl_pci_associate_default_context(struct pci_dev *dev, struct cxl_afu *afu); +void _cxl_pci_disable_device(struct pci_dev *dev); +int _cxl_next_msi_hwirq(struct pci_dev *pdev, struct cxl_context **ctx, int *afu_irq); +int _cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type); +void _cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev); struct cxl_calls { void (*cxl_slbia)(struct mm_struct *mm); + bool (*cxl_pci_associate_default_context)(struct pci_dev *dev, struct cxl_afu *afu); + void (*cxl_pci_disable_device)(struct pci_dev *dev); + int (*cxl_next_msi_hwirq)(struct pci_dev *pdev, struct cxl_context **ctx, int *afu_irq); + int (*cxl_cx4_setup_msi_irqs)(struct pci_dev *pdev, int nvec, int type); + void (*cxl_cx4_teardown_msi_irqs)(struct pci_dev *pdev); + struct module *owner; }; int register_cxl_calls(struct cxl_calls *calls); @@ -805,6 +857,11 @@ int cxl_tlb_slb_invalidate(struct cxl *adapter); int cxl_afu_disable(struct cxl_afu *afu); int cxl_psl_purge(struct cxl_afu *afu); +void cxl_debugfs_add_adapter_psl_regs(struct cxl *adapter, struct dentry *dir); +void cxl_debugfs_add_adapter_xsl_regs(struct cxl *adapter, struct dentry *dir); +void cxl_debugfs_add_afu_psl_regs(struct cxl_afu *afu, struct dentry *dir); +void cxl_native_psl_irq_dump_regs(struct cxl_context *ctx); +void cxl_native_err_irq_dump_regs(struct cxl *adapter); void cxl_stop_trace(struct cxl *cxl); int cxl_pci_vphb_add(struct cxl_afu *afu); void cxl_pci_vphb_remove(struct cxl_afu *afu); @@ -855,6 +912,7 @@ struct cxl_backend_ops { int (*attach_process)(struct cxl_context *ctx, bool kernel, u64 wed, u64 amr); int (*detach_process)(struct cxl_context *ctx); + void (*update_ivtes)(struct cxl_context *ctx); bool (*support_attributes)(const char *attr_name, enum cxl_attrs type); bool (*link_ok)(struct cxl *cxl, struct cxl_afu *afu); void (*release_afu)(struct device *dev); @@ -879,4 +937,7 @@ extern const struct cxl_backend_ops *cxl_ops; /* check if the given pci_dev is on the the cxl vphb bus */ bool cxl_pci_is_vphb_device(struct pci_dev *dev); + +/* decode AFU error bits in the PSL register PSL_SERR_An */ +void cxl_afu_decode_psl_serr(struct cxl_afu *afu, u64 serr); #endif diff --git a/drivers/misc/cxl/debugfs.c b/drivers/misc/cxl/debugfs.c index 5751899e0c17..ec7b8a017439 100644 --- a/drivers/misc/cxl/debugfs.c +++ b/drivers/misc/cxl/debugfs.c @@ -51,6 +51,19 @@ static struct dentry *debugfs_create_io_x64(const char *name, umode_t mode, return debugfs_create_file(name, mode, parent, (void __force *)value, &fops_io_x64); } +void cxl_debugfs_add_adapter_psl_regs(struct cxl *adapter, struct dentry *dir) +{ + debugfs_create_io_x64("fir1", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_FIR1)); + debugfs_create_io_x64("fir2", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_FIR2)); + debugfs_create_io_x64("fir_cntl", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_FIR_CNTL)); + debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_TRACE)); +} + +void cxl_debugfs_add_adapter_xsl_regs(struct cxl *adapter, struct dentry *dir) +{ + debugfs_create_io_x64("fec", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_XSL_FEC)); +} + int cxl_debugfs_adapter_add(struct cxl *adapter) { struct dentry *dir; @@ -65,13 +78,10 @@ int cxl_debugfs_adapter_add(struct cxl *adapter) return PTR_ERR(dir); adapter->debugfs = dir; - debugfs_create_io_x64("fir1", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_FIR1)); - debugfs_create_io_x64("fir2", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_FIR2)); - debugfs_create_io_x64("fir_cntl", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_FIR_CNTL)); debugfs_create_io_x64("err_ivte", S_IRUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_ErrIVTE)); - debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1_addr(adapter, CXL_PSL_TRACE)); - + if (adapter->native->sl_ops->debugfs_add_adapter_sl_regs) + adapter->native->sl_ops->debugfs_add_adapter_sl_regs(adapter, dir); return 0; } @@ -80,6 +90,14 @@ void cxl_debugfs_adapter_remove(struct cxl *adapter) debugfs_remove_recursive(adapter->debugfs); } +void cxl_debugfs_add_afu_psl_regs(struct cxl_afu *afu, struct dentry *dir) +{ + debugfs_create_io_x64("fir", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_FIR_SLICE_An)); + debugfs_create_io_x64("serr", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SERR_An)); + debugfs_create_io_x64("afu_debug", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_AFU_DEBUG_An)); + debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SLICE_TRACE)); +} + int cxl_debugfs_afu_add(struct cxl_afu *afu) { struct dentry *dir; @@ -94,18 +112,15 @@ int cxl_debugfs_afu_add(struct cxl_afu *afu) return PTR_ERR(dir); afu->debugfs = dir; - debugfs_create_io_x64("fir", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_FIR_SLICE_An)); - debugfs_create_io_x64("serr", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SERR_An)); - debugfs_create_io_x64("afu_debug", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_AFU_DEBUG_An)); debugfs_create_io_x64("sr", S_IRUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SR_An)); - debugfs_create_io_x64("dsisr", S_IRUSR, dir, _cxl_p2n_addr(afu, CXL_PSL_DSISR_An)); debugfs_create_io_x64("dar", S_IRUSR, dir, _cxl_p2n_addr(afu, CXL_PSL_DAR_An)); debugfs_create_io_x64("sstp0", S_IRUSR, dir, _cxl_p2n_addr(afu, CXL_SSTP0_An)); debugfs_create_io_x64("sstp1", S_IRUSR, dir, _cxl_p2n_addr(afu, CXL_SSTP1_An)); debugfs_create_io_x64("err_status", S_IRUSR, dir, _cxl_p2n_addr(afu, CXL_PSL_ErrStat_An)); - debugfs_create_io_x64("trace", S_IRUSR | S_IWUSR, dir, _cxl_p1n_addr(afu, CXL_PSL_SLICE_TRACE)); + if (afu->adapter->native->sl_ops->debugfs_add_afu_sl_regs) + afu->adapter->native->sl_ops->debugfs_add_afu_sl_regs(afu, dir); return 0; } diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c index eec468f1612f..5fb9894b157f 100644 --- a/drivers/misc/cxl/file.c +++ b/drivers/misc/cxl/file.c @@ -293,6 +293,17 @@ int afu_mmap(struct file *file, struct vm_area_struct *vm) return cxl_context_iomap(ctx, vm); } +static inline bool ctx_event_pending(struct cxl_context *ctx) +{ + if (ctx->pending_irq || ctx->pending_fault || ctx->pending_afu_err) + return true; + + if (ctx->afu_driver_ops && atomic_read(&ctx->afu_driver_events)) + return true; + + return false; +} + unsigned int afu_poll(struct file *file, struct poll_table_struct *poll) { struct cxl_context *ctx = file->private_data; @@ -305,8 +316,7 @@ unsigned int afu_poll(struct file *file, struct poll_table_struct *poll) pr_devel("afu_poll wait done pe: %i\n", ctx->pe); spin_lock_irqsave(&ctx->lock, flags); - if (ctx->pending_irq || ctx->pending_fault || - ctx->pending_afu_err) + if (ctx_event_pending(ctx)) mask |= POLLIN | POLLRDNORM; else if (ctx->status == CLOSED) /* Only error on closed when there are no futher events pending @@ -319,16 +329,46 @@ unsigned int afu_poll(struct file *file, struct poll_table_struct *poll) return mask; } -static inline int ctx_event_pending(struct cxl_context *ctx) +static ssize_t afu_driver_event_copy(struct cxl_context *ctx, + char __user *buf, + struct cxl_event *event, + struct cxl_event_afu_driver_reserved *pl) { - return (ctx->pending_irq || ctx->pending_fault || - ctx->pending_afu_err || (ctx->status == CLOSED)); + /* Check event */ + if (!pl) { + ctx->afu_driver_ops->event_delivered(ctx, pl, -EINVAL); + return -EFAULT; + } + + /* Check event size */ + event->header.size += pl->data_size; + if (event->header.size > CXL_READ_MIN_SIZE) { + ctx->afu_driver_ops->event_delivered(ctx, pl, -EINVAL); + return -EFAULT; + } + + /* Copy event header */ + if (copy_to_user(buf, event, sizeof(struct cxl_event_header))) { + ctx->afu_driver_ops->event_delivered(ctx, pl, -EFAULT); + return -EFAULT; + } + + /* Copy event data */ + buf += sizeof(struct cxl_event_header); + if (copy_to_user(buf, &pl->data, pl->data_size)) { + ctx->afu_driver_ops->event_delivered(ctx, pl, -EFAULT); + return -EFAULT; + } + + ctx->afu_driver_ops->event_delivered(ctx, pl, 0); /* Success */ + return event->header.size; } ssize_t afu_read(struct file *file, char __user *buf, size_t count, loff_t *off) { struct cxl_context *ctx = file->private_data; + struct cxl_event_afu_driver_reserved *pl = NULL; struct cxl_event event; unsigned long flags; int rc; @@ -344,7 +384,7 @@ ssize_t afu_read(struct file *file, char __user *buf, size_t count, for (;;) { prepare_to_wait(&ctx->wq, &wait, TASK_INTERRUPTIBLE); - if (ctx_event_pending(ctx)) + if (ctx_event_pending(ctx) || (ctx->status == CLOSED)) break; if (!cxl_ops->link_ok(ctx->afu->adapter, ctx->afu)) { @@ -374,7 +414,12 @@ ssize_t afu_read(struct file *file, char __user *buf, size_t count, memset(&event, 0, sizeof(event)); event.header.process_element = ctx->pe; event.header.size = sizeof(struct cxl_event_header); - if (ctx->pending_irq) { + if (ctx->afu_driver_ops && atomic_read(&ctx->afu_driver_events)) { + pr_devel("afu_read delivering AFU driver specific event\n"); + pl = ctx->afu_driver_ops->fetch_event(ctx); + atomic_dec(&ctx->afu_driver_events); + event.header.type = CXL_EVENT_AFU_DRIVER; + } else if (ctx->pending_irq) { pr_devel("afu_read delivering AFU interrupt\n"); event.header.size += sizeof(struct cxl_event_afu_interrupt); event.header.type = CXL_EVENT_AFU_INTERRUPT; @@ -404,6 +449,9 @@ ssize_t afu_read(struct file *file, char __user *buf, size_t count, spin_unlock_irqrestore(&ctx->lock, flags); + if (event.header.type == CXL_EVENT_AFU_DRIVER) + return afu_driver_event_copy(ctx, buf, &event, pl); + if (copy_to_user(buf, &event, event.header.size)) return -EFAULT; return event.header.size; @@ -558,7 +606,7 @@ int __init cxl_file_init(void) * If these change we really need to update API. Either change some * flags or update API version number CXL_API_VERSION. */ - BUILD_BUG_ON(CXL_API_VERSION != 2); + BUILD_BUG_ON(CXL_API_VERSION != 3); BUILD_BUG_ON(sizeof(struct cxl_ioctl_start_work) != 64); BUILD_BUG_ON(sizeof(struct cxl_event_header) != 8); BUILD_BUG_ON(sizeof(struct cxl_event_afu_interrupt) != 8); diff --git a/drivers/misc/cxl/flash.c b/drivers/misc/cxl/flash.c index 68dd0b7da471..c63d61e17d56 100644 --- a/drivers/misc/cxl/flash.c +++ b/drivers/misc/cxl/flash.c @@ -24,8 +24,8 @@ struct ai_header { }; static struct semaphore sem; -unsigned long *buffer[CXL_AI_MAX_ENTRIES]; -struct sg_list *le; +static unsigned long *buffer[CXL_AI_MAX_ENTRIES]; +static struct sg_list *le; static u64 continue_token; static unsigned int transfer; diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c index bc8d0b9870eb..9aa58a77a24d 100644 --- a/drivers/misc/cxl/guest.c +++ b/drivers/misc/cxl/guest.c @@ -196,15 +196,18 @@ static irqreturn_t guest_slice_irq_err(int irq, void *data) { struct cxl_afu *afu = data; int rc; - u64 serr; + u64 serr, afu_error, dsisr; - WARN(irq, "CXL SLICE ERROR interrupt %i\n", irq); rc = cxl_h_get_fn_error_interrupt(afu->guest->handle, &serr); if (rc) { dev_crit(&afu->dev, "Couldn't read PSL_SERR_An: %d\n", rc); return IRQ_HANDLED; } - dev_crit(&afu->dev, "PSL_SERR_An: 0x%.16llx\n", serr); + afu_error = cxl_p2n_read(afu, CXL_AFU_ERR_An); + dsisr = cxl_p2n_read(afu, CXL_PSL_DSISR_An); + cxl_afu_decode_psl_serr(afu, serr); + dev_crit(&afu->dev, "AFU_ERR_An: 0x%.16llx\n", afu_error); + dev_crit(&afu->dev, "PSL_DSISR_An: 0x%.16llx\n", dsisr); rc = cxl_h_ack_fn_error_interrupt(afu->guest->handle, serr); if (rc) @@ -1052,16 +1055,18 @@ static void free_adapter(struct cxl *adapter) struct irq_avail *cur; int i; - if (adapter->guest->irq_avail) { - for (i = 0; i < adapter->guest->irq_nranges; i++) { - cur = &adapter->guest->irq_avail[i]; - kfree(cur->bitmap); + if (adapter->guest) { + if (adapter->guest->irq_avail) { + for (i = 0; i < adapter->guest->irq_nranges; i++) { + cur = &adapter->guest->irq_avail[i]; + kfree(cur->bitmap); + } + kfree(adapter->guest->irq_avail); } - kfree(adapter->guest->irq_avail); + kfree(adapter->guest->status); + kfree(adapter->guest); } - kfree(adapter->guest->status); cxl_remove_adapter_nr(adapter); - kfree(adapter->guest); kfree(adapter); } @@ -1182,6 +1187,7 @@ const struct cxl_backend_ops cxl_guest_ops = { .ack_irq = guest_ack_irq, .attach_process = guest_attach_process, .detach_process = guest_detach_process, + .update_ivtes = NULL, .support_attributes = guest_support_attributes, .link_ok = guest_link_ok, .release_afu = guest_release_afu, diff --git a/drivers/misc/cxl/irq.c b/drivers/misc/cxl/irq.c index 8def4553acba..dec60f58a767 100644 --- a/drivers/misc/cxl/irq.c +++ b/drivers/misc/cxl/irq.c @@ -260,9 +260,6 @@ int afu_allocate_irqs(struct cxl_context *ctx, u32 count) else alloc_count = count + 1; - /* Initialize the list head to hold irq names */ - INIT_LIST_HEAD(&ctx->irq_names); - if ((rc = cxl_ops->alloc_irq_ranges(&ctx->irqs, ctx->afu->adapter, alloc_count))) return rc; @@ -374,3 +371,32 @@ void afu_release_irqs(struct cxl_context *ctx, void *cookie) ctx->irq_count = 0; } + +void cxl_afu_decode_psl_serr(struct cxl_afu *afu, u64 serr) +{ + dev_crit(&afu->dev, + "PSL Slice error received. Check AFU for root cause.\n"); + dev_crit(&afu->dev, "PSL_SERR_An: 0x%016llx\n", serr); + if (serr & CXL_PSL_SERR_An_afuto) + dev_crit(&afu->dev, "AFU MMIO Timeout\n"); + if (serr & CXL_PSL_SERR_An_afudis) + dev_crit(&afu->dev, + "MMIO targeted Accelerator that was not enabled\n"); + if (serr & CXL_PSL_SERR_An_afuov) + dev_crit(&afu->dev, "AFU CTAG Overflow\n"); + if (serr & CXL_PSL_SERR_An_badsrc) + dev_crit(&afu->dev, "Bad Interrupt Source\n"); + if (serr & CXL_PSL_SERR_An_badctx) + dev_crit(&afu->dev, "Bad Context Handle\n"); + if (serr & CXL_PSL_SERR_An_llcmdis) + dev_crit(&afu->dev, "LLCMD to Disabled AFU\n"); + if (serr & CXL_PSL_SERR_An_llcmdto) + dev_crit(&afu->dev, "LLCMD Timeout to AFU\n"); + if (serr & CXL_PSL_SERR_An_afupar) + dev_crit(&afu->dev, "AFU MMIO Parity Error\n"); + if (serr & CXL_PSL_SERR_An_afudup) + dev_crit(&afu->dev, "AFU MMIO Duplicate CTAG Error\n"); + if (serr & CXL_PSL_SERR_An_AE) + dev_crit(&afu->dev, + "AFU asserted JDONE with JERROR in AFU Directed Mode\n"); +} diff --git a/drivers/misc/cxl/main.c b/drivers/misc/cxl/main.c index ae68c3201156..d9be23b24aa3 100644 --- a/drivers/misc/cxl/main.c +++ b/drivers/misc/cxl/main.c @@ -110,6 +110,11 @@ static inline void cxl_slbia_core(struct mm_struct *mm) static struct cxl_calls cxl_calls = { .cxl_slbia = cxl_slbia_core, + .cxl_pci_associate_default_context = _cxl_pci_associate_default_context, + .cxl_pci_disable_device = _cxl_pci_disable_device, + .cxl_next_msi_hwirq = _cxl_next_msi_hwirq, + .cxl_cx4_setup_msi_irqs = _cxl_cx4_setup_msi_irqs, + .cxl_cx4_teardown_msi_irqs = _cxl_cx4_teardown_msi_irqs, .owner = THIS_MODULE, }; diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c index 55d8a1459f28..3bcdaee11ba1 100644 --- a/drivers/misc/cxl/native.c +++ b/drivers/misc/cxl/native.c @@ -21,10 +21,10 @@ #include "cxl.h" #include "trace.h" -static int afu_control(struct cxl_afu *afu, u64 command, +static int afu_control(struct cxl_afu *afu, u64 command, u64 clear, u64 result, u64 mask, bool enabled) { - u64 AFU_Cntl = cxl_p2n_read(afu, CXL_AFU_Cntl_An); + u64 AFU_Cntl; unsigned long timeout = jiffies + (HZ * CXL_TIMEOUT); int rc = 0; @@ -33,7 +33,8 @@ static int afu_control(struct cxl_afu *afu, u64 command, trace_cxl_afu_ctrl(afu, command); - cxl_p2n_write(afu, CXL_AFU_Cntl_An, AFU_Cntl | command); + AFU_Cntl = cxl_p2n_read(afu, CXL_AFU_Cntl_An); + cxl_p2n_write(afu, CXL_AFU_Cntl_An, (AFU_Cntl & ~clear) | command); AFU_Cntl = cxl_p2n_read(afu, CXL_AFU_Cntl_An); while ((AFU_Cntl & mask) != result) { @@ -54,6 +55,16 @@ static int afu_control(struct cxl_afu *afu, u64 command, cpu_relax(); AFU_Cntl = cxl_p2n_read(afu, CXL_AFU_Cntl_An); }; + + if (AFU_Cntl & CXL_AFU_Cntl_An_RA) { + /* + * Workaround for a bug in the XSL used in the Mellanox CX4 + * that fails to clear the RA bit after an AFU reset, + * preventing subsequent AFU resets from working. + */ + cxl_p2n_write(afu, CXL_AFU_Cntl_An, AFU_Cntl & ~CXL_AFU_Cntl_An_RA); + } + pr_devel("AFU command complete: %llx\n", command); afu->enabled = enabled; out: @@ -67,7 +78,7 @@ static int afu_enable(struct cxl_afu *afu) { pr_devel("AFU enable request\n"); - return afu_control(afu, CXL_AFU_Cntl_An_E, + return afu_control(afu, CXL_AFU_Cntl_An_E, 0, CXL_AFU_Cntl_An_ES_Enabled, CXL_AFU_Cntl_An_ES_MASK, true); } @@ -76,7 +87,8 @@ int cxl_afu_disable(struct cxl_afu *afu) { pr_devel("AFU disable request\n"); - return afu_control(afu, 0, CXL_AFU_Cntl_An_ES_Disabled, + return afu_control(afu, 0, CXL_AFU_Cntl_An_E, + CXL_AFU_Cntl_An_ES_Disabled, CXL_AFU_Cntl_An_ES_MASK, false); } @@ -85,7 +97,7 @@ static int native_afu_reset(struct cxl_afu *afu) { pr_devel("AFU reset request\n"); - return afu_control(afu, CXL_AFU_Cntl_An_RA, + return afu_control(afu, CXL_AFU_Cntl_An_RA, 0, CXL_AFU_Cntl_An_RS_Complete | CXL_AFU_Cntl_An_ES_Disabled, CXL_AFU_Cntl_An_RS_MASK | CXL_AFU_Cntl_An_ES_MASK, false); @@ -189,7 +201,7 @@ int cxl_alloc_spa(struct cxl_afu *afu) unsigned spa_size; /* Work out how many pages to allocate */ - afu->native->spa_order = 0; + afu->native->spa_order = -1; do { afu->native->spa_order++; spa_size = (1 << afu->native->spa_order) * PAGE_SIZE; @@ -430,7 +442,6 @@ static int remove_process_element(struct cxl_context *ctx) return rc; } - void cxl_assign_psn_space(struct cxl_context *ctx) { if (!ctx->afu->pp_size || ctx->master) { @@ -507,10 +518,39 @@ static u64 calculate_sr(struct cxl_context *ctx) return sr; } +static void update_ivtes_directed(struct cxl_context *ctx) +{ + bool need_update = (ctx->status == STARTED); + int r; + + if (need_update) { + WARN_ON(terminate_process_element(ctx)); + WARN_ON(remove_process_element(ctx)); + } + + for (r = 0; r < CXL_IRQ_RANGES; r++) { + ctx->elem->ivte_offsets[r] = cpu_to_be16(ctx->irqs.offset[r]); + ctx->elem->ivte_ranges[r] = cpu_to_be16(ctx->irqs.range[r]); + } + + /* + * Theoretically we could use the update llcmd, instead of a + * terminate/remove/add (or if an atomic update was required we could + * do a suspend/update/resume), however it seems there might be issues + * with the update llcmd on some cards (including those using an XSL on + * an ASIC) so for now it's safest to go with the commands that are + * known to work. In the future if we come across a situation where the + * card may be performing transactions using the same PE while we are + * doing this update we might need to revisit this. + */ + if (need_update) + WARN_ON(add_process_element(ctx)); +} + static int attach_afu_directed(struct cxl_context *ctx, u64 wed, u64 amr) { u32 pid; - int r, result; + int result; cxl_assign_psn_space(ctx); @@ -545,10 +585,7 @@ static int attach_afu_directed(struct cxl_context *ctx, u64 wed, u64 amr) ctx->irqs.range[0] = 1; } - for (r = 0; r < CXL_IRQ_RANGES; r++) { - ctx->elem->ivte_offsets[r] = cpu_to_be16(ctx->irqs.offset[r]); - ctx->elem->ivte_ranges[r] = cpu_to_be16(ctx->irqs.range[r]); - } + update_ivtes_directed(ctx); ctx->elem->common.amr = cpu_to_be64(amr); ctx->elem->common.wed = cpu_to_be64(wed); @@ -570,7 +607,33 @@ static int deactivate_afu_directed(struct cxl_afu *afu) cxl_sysfs_afu_m_remove(afu); cxl_chardev_afu_remove(afu); - cxl_ops->afu_reset(afu); + /* + * The CAIA section 2.2.1 indicates that the procedure for starting and + * stopping an AFU in AFU directed mode is AFU specific, which is not + * ideal since this code is generic and with one exception has no + * knowledge of the AFU. This is in contrast to the procedure for + * disabling a dedicated process AFU, which is documented to just + * require a reset. The architecture does indicate that both an AFU + * reset and an AFU disable should result in the AFU being disabled and + * we do both followed by a PSL purge for safety. + * + * Notably we used to have some issues with the disable sequence on PSL + * cards, which is why we ended up using this heavy weight procedure in + * the first place, however a bug was discovered that had rendered the + * disable operation ineffective, so it is conceivable that was the + * sole explanation for those difficulties. Careful regression testing + * is recommended if anyone attempts to remove or reorder these + * operations. + * + * The XSL on the Mellanox CX4 behaves a little differently from the + * PSL based cards and will time out an AFU reset if the AFU is still + * enabled. That card is special in that we do have a means to identify + * it from this code, so in that case we skip the reset and just use a + * disable/purge to avoid the timeout and corresponding noise in the + * kernel log. + */ + if (afu->adapter->native->sl_ops->needs_reset_before_disable) + cxl_ops->afu_reset(afu); cxl_afu_disable(afu); cxl_psl_purge(afu); @@ -600,6 +663,22 @@ static int activate_dedicated_process(struct cxl_afu *afu) return cxl_chardev_d_afu_add(afu); } +static void update_ivtes_dedicated(struct cxl_context *ctx) +{ + struct cxl_afu *afu = ctx->afu; + + cxl_p1n_write(afu, CXL_PSL_IVTE_Offset_An, + (((u64)ctx->irqs.offset[0] & 0xffff) << 48) | + (((u64)ctx->irqs.offset[1] & 0xffff) << 32) | + (((u64)ctx->irqs.offset[2] & 0xffff) << 16) | + ((u64)ctx->irqs.offset[3] & 0xffff)); + cxl_p1n_write(afu, CXL_PSL_IVTE_Limit_An, (u64) + (((u64)ctx->irqs.range[0] & 0xffff) << 48) | + (((u64)ctx->irqs.range[1] & 0xffff) << 32) | + (((u64)ctx->irqs.range[2] & 0xffff) << 16) | + ((u64)ctx->irqs.range[3] & 0xffff)); +} + static int attach_dedicated(struct cxl_context *ctx, u64 wed, u64 amr) { struct cxl_afu *afu = ctx->afu; @@ -618,16 +697,7 @@ static int attach_dedicated(struct cxl_context *ctx, u64 wed, u64 amr) cxl_prefault(ctx, wed); - cxl_p1n_write(afu, CXL_PSL_IVTE_Offset_An, - (((u64)ctx->irqs.offset[0] & 0xffff) << 48) | - (((u64)ctx->irqs.offset[1] & 0xffff) << 32) | - (((u64)ctx->irqs.offset[2] & 0xffff) << 16) | - ((u64)ctx->irqs.offset[3] & 0xffff)); - cxl_p1n_write(afu, CXL_PSL_IVTE_Limit_An, (u64) - (((u64)ctx->irqs.range[0] & 0xffff) << 48) | - (((u64)ctx->irqs.range[1] & 0xffff) << 32) | - (((u64)ctx->irqs.range[2] & 0xffff) << 16) | - ((u64)ctx->irqs.range[3] & 0xffff)); + update_ivtes_dedicated(ctx); cxl_p2n_write(afu, CXL_PSL_AMR_An, amr); @@ -703,12 +773,37 @@ static int native_attach_process(struct cxl_context *ctx, bool kernel, static inline int detach_process_native_dedicated(struct cxl_context *ctx) { + /* + * The CAIA section 2.1.1 indicates that we need to do an AFU reset to + * stop the AFU in dedicated mode (we therefore do not make that + * optional like we do in the afu directed path). It does not indicate + * that we need to do an explicit disable (which should occur + * implicitly as part of the reset) or purge, but we do these as well + * to be on the safe side. + * + * Notably we used to have some issues with the disable sequence + * (before the sequence was spelled out in the architecture) which is + * why we were so heavy weight in the first place, however a bug was + * discovered that had rendered the disable operation ineffective, so + * it is conceivable that was the sole explanation for those + * difficulties. Point is, we should be careful and do some regression + * testing if we ever attempt to remove any part of this procedure. + */ cxl_ops->afu_reset(ctx->afu); cxl_afu_disable(ctx->afu); cxl_psl_purge(ctx->afu); return 0; } +static void native_update_ivtes(struct cxl_context *ctx) +{ + if (ctx->afu->current_mode == CXL_MODE_DIRECTED) + return update_ivtes_directed(ctx); + if (ctx->afu->current_mode == CXL_MODE_DEDICATED) + return update_ivtes_dedicated(ctx); + WARN(1, "native_update_ivtes: Bad mode\n"); +} + static inline int detach_process_native_afu_directed(struct cxl_context *ctx) { if (!ctx->pe_inserted) @@ -754,26 +849,38 @@ static int native_get_irq_info(struct cxl_afu *afu, struct cxl_irq_info *info) return 0; } -static irqreturn_t native_handle_psl_slice_error(struct cxl_context *ctx, - u64 dsisr, u64 errstat) +void cxl_native_psl_irq_dump_regs(struct cxl_context *ctx) { u64 fir1, fir2, fir_slice, serr, afu_debug; fir1 = cxl_p1_read(ctx->afu->adapter, CXL_PSL_FIR1); fir2 = cxl_p1_read(ctx->afu->adapter, CXL_PSL_FIR2); fir_slice = cxl_p1n_read(ctx->afu, CXL_PSL_FIR_SLICE_An); - serr = cxl_p1n_read(ctx->afu, CXL_PSL_SERR_An); afu_debug = cxl_p1n_read(ctx->afu, CXL_AFU_DEBUG_An); - dev_crit(&ctx->afu->dev, "PSL ERROR STATUS: 0x%016llx\n", errstat); dev_crit(&ctx->afu->dev, "PSL_FIR1: 0x%016llx\n", fir1); dev_crit(&ctx->afu->dev, "PSL_FIR2: 0x%016llx\n", fir2); - dev_crit(&ctx->afu->dev, "PSL_SERR_An: 0x%016llx\n", serr); + if (ctx->afu->adapter->native->sl_ops->register_serr_irq) { + serr = cxl_p1n_read(ctx->afu, CXL_PSL_SERR_An); + cxl_afu_decode_psl_serr(ctx->afu, serr); + } dev_crit(&ctx->afu->dev, "PSL_FIR_SLICE_An: 0x%016llx\n", fir_slice); dev_crit(&ctx->afu->dev, "CXL_PSL_AFU_DEBUG_An: 0x%016llx\n", afu_debug); +} + +static irqreturn_t native_handle_psl_slice_error(struct cxl_context *ctx, + u64 dsisr, u64 errstat) +{ + + dev_crit(&ctx->afu->dev, "PSL ERROR STATUS: 0x%016llx\n", errstat); - dev_crit(&ctx->afu->dev, "STOPPING CXL TRACE\n"); - cxl_stop_trace(ctx->afu->adapter); + if (ctx->afu->adapter->native->sl_ops->psl_irq_dump_registers) + ctx->afu->adapter->native->sl_ops->psl_irq_dump_registers(ctx); + + if (ctx->afu->adapter->native->sl_ops->debugfs_stop_trace) { + dev_crit(&ctx->afu->dev, "STOPPING CXL TRACE\n"); + ctx->afu->adapter->native->sl_ops->debugfs_stop_trace(ctx->afu->adapter); + } return cxl_ops->ack_irq(ctx, 0, errstat); } @@ -849,41 +956,56 @@ void native_irq_wait(struct cxl_context *ctx) static irqreturn_t native_slice_irq_err(int irq, void *data) { struct cxl_afu *afu = data; - u64 fir_slice, errstat, serr, afu_debug; - - WARN(irq, "CXL SLICE ERROR interrupt %i\n", irq); + u64 fir_slice, errstat, serr, afu_debug, afu_error, dsisr; + /* + * slice err interrupt is only used with full PSL (no XSL) + */ serr = cxl_p1n_read(afu, CXL_PSL_SERR_An); fir_slice = cxl_p1n_read(afu, CXL_PSL_FIR_SLICE_An); errstat = cxl_p2n_read(afu, CXL_PSL_ErrStat_An); afu_debug = cxl_p1n_read(afu, CXL_AFU_DEBUG_An); - dev_crit(&afu->dev, "PSL_SERR_An: 0x%016llx\n", serr); + afu_error = cxl_p2n_read(afu, CXL_AFU_ERR_An); + dsisr = cxl_p2n_read(afu, CXL_PSL_DSISR_An); + cxl_afu_decode_psl_serr(afu, serr); dev_crit(&afu->dev, "PSL_FIR_SLICE_An: 0x%016llx\n", fir_slice); dev_crit(&afu->dev, "CXL_PSL_ErrStat_An: 0x%016llx\n", errstat); dev_crit(&afu->dev, "CXL_PSL_AFU_DEBUG_An: 0x%016llx\n", afu_debug); + dev_crit(&afu->dev, "AFU_ERR_An: 0x%.16llx\n", afu_error); + dev_crit(&afu->dev, "PSL_DSISR_An: 0x%.16llx\n", dsisr); cxl_p1n_write(afu, CXL_PSL_SERR_An, serr); return IRQ_HANDLED; } +void cxl_native_err_irq_dump_regs(struct cxl *adapter) +{ + u64 fir1, fir2; + + fir1 = cxl_p1_read(adapter, CXL_PSL_FIR1); + fir2 = cxl_p1_read(adapter, CXL_PSL_FIR2); + + dev_crit(&adapter->dev, "PSL_FIR1: 0x%016llx\nPSL_FIR2: 0x%016llx\n", fir1, fir2); +} + static irqreturn_t native_irq_err(int irq, void *data) { struct cxl *adapter = data; - u64 fir1, fir2, err_ivte; + u64 err_ivte; WARN(1, "CXL ERROR interrupt %i\n", irq); err_ivte = cxl_p1_read(adapter, CXL_PSL_ErrIVTE); dev_crit(&adapter->dev, "PSL_ErrIVTE: 0x%016llx\n", err_ivte); - dev_crit(&adapter->dev, "STOPPING CXL TRACE\n"); - cxl_stop_trace(adapter); - - fir1 = cxl_p1_read(adapter, CXL_PSL_FIR1); - fir2 = cxl_p1_read(adapter, CXL_PSL_FIR2); + if (adapter->native->sl_ops->debugfs_stop_trace) { + dev_crit(&adapter->dev, "STOPPING CXL TRACE\n"); + adapter->native->sl_ops->debugfs_stop_trace(adapter); + } - dev_crit(&adapter->dev, "PSL_FIR1: 0x%016llx\nPSL_FIR2: 0x%016llx\n", fir1, fir2); + if (adapter->native->sl_ops->err_irq_dump_registers) + adapter->native->sl_ops->err_irq_dump_registers(adapter); return IRQ_HANDLED; } @@ -1128,6 +1250,7 @@ const struct cxl_backend_ops cxl_native_ops = { .irq_wait = native_irq_wait, .attach_process = native_attach_process, .detach_process = native_detach_process, + .update_ivtes = native_update_ivtes, .support_attributes = native_support_attributes, .link_ok = cxl_adapter_link_ok, .release_afu = cxl_pci_release_afu, diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c index a08fcc888a71..d152e2de8c93 100644 --- a/drivers/misc/cxl/pci.c +++ b/drivers/misc/cxl/pci.c @@ -55,6 +55,8 @@ pci_read_config_byte(dev, vsec + 0xa, dest) #define CXL_WRITE_VSEC_MODE_CONTROL(dev, vsec, val) \ pci_write_config_byte(dev, vsec + 0xa, val) +#define CXL_WRITE_VSEC_MODE_CONTROL_BUS(bus, devfn, vsec, val) \ + pci_bus_write_config_byte(bus, devfn, vsec + 0xa, val) #define CXL_VSEC_PROTOCOL_MASK 0xe0 #define CXL_VSEC_PROTOCOL_1024TB 0x80 #define CXL_VSEC_PROTOCOL_512TB 0x40 @@ -352,13 +354,10 @@ static u64 get_capp_unit_id(struct device_node *np) return 0; } -static int init_implementation_adapter_regs(struct cxl *adapter, struct pci_dev *dev) +static int calc_capp_routing(struct pci_dev *dev, u64 *chipid, u64 *capp_unit_id) { struct device_node *np; const __be32 *prop; - u64 psl_dsnctl; - u64 chipid; - u64 capp_unit_id; if (!(np = pnv_pci_get_phb_node(dev))) return -ENODEV; @@ -367,14 +366,28 @@ static int init_implementation_adapter_regs(struct cxl *adapter, struct pci_dev np = of_get_next_parent(np); if (!np) return -ENODEV; - chipid = be32_to_cpup(prop); - capp_unit_id = get_capp_unit_id(np); + *chipid = be32_to_cpup(prop); + *capp_unit_id = get_capp_unit_id(np); of_node_put(np); - if (!capp_unit_id) { + if (!*capp_unit_id) { pr_err("cxl: invalid capp unit id\n"); return -ENODEV; } + return 0; +} + +static int init_implementation_adapter_psl_regs(struct cxl *adapter, struct pci_dev *dev) +{ + u64 psl_dsnctl; + u64 chipid; + u64 capp_unit_id; + int rc; + + rc = calc_capp_routing(dev, &chipid, &capp_unit_id); + if (rc) + return rc; + psl_dsnctl = 0x0000900000000000ULL; /* pteupd ttype, scdone */ psl_dsnctl |= (0x2ULL << (63-38)); /* MMIO hang pulse: 256 us */ /* Tell PSL where to route data to */ @@ -393,8 +406,61 @@ static int init_implementation_adapter_regs(struct cxl *adapter, struct pci_dev return 0; } +static int init_implementation_adapter_xsl_regs(struct cxl *adapter, struct pci_dev *dev) +{ + u64 xsl_dsnctl; + u64 chipid; + u64 capp_unit_id; + int rc; + + rc = calc_capp_routing(dev, &chipid, &capp_unit_id); + if (rc) + return rc; + + /* Tell XSL where to route data to */ + xsl_dsnctl = 0x0000600000000000ULL | (chipid << (63-5)); + xsl_dsnctl |= (capp_unit_id << (63-13)); + cxl_p1_write(adapter, CXL_XSL_DSNCTL, xsl_dsnctl); + + return 0; +} + +/* PSL & XSL */ +#define TBSYNC_CAL(n) (((u64)n & 0x7) << (63-3)) #define TBSYNC_CNT(n) (((u64)n & 0x7) << (63-6)) -#define _2048_250MHZ_CYCLES 1 +/* For the PSL this is a multiple for 0 < n <= 7: */ +#define PSL_2048_250MHZ_CYCLES 1 + +static void write_timebase_ctrl_psl(struct cxl *adapter) +{ + cxl_p1_write(adapter, CXL_PSL_TB_CTLSTAT, + TBSYNC_CNT(2 * PSL_2048_250MHZ_CYCLES)); +} + +/* XSL */ +#define TBSYNC_ENA (1ULL << 63) +/* For the XSL this is 2**n * 2000 clocks for 0 < n <= 6: */ +#define XSL_2000_CLOCKS 1 +#define XSL_4000_CLOCKS 2 +#define XSL_8000_CLOCKS 3 + +static void write_timebase_ctrl_xsl(struct cxl *adapter) +{ + cxl_p1_write(adapter, CXL_XSL_TB_CTLSTAT, + TBSYNC_ENA | + TBSYNC_CAL(3) | + TBSYNC_CNT(XSL_4000_CLOCKS)); +} + +static u64 timebase_read_psl(struct cxl *adapter) +{ + return cxl_p1_read(adapter, CXL_PSL_Timebase); +} + +static u64 timebase_read_xsl(struct cxl *adapter) +{ + return cxl_p1_read(adapter, CXL_XSL_Timebase); +} static void cxl_setup_psl_timebase(struct cxl *adapter, struct pci_dev *dev) { @@ -421,8 +487,7 @@ static void cxl_setup_psl_timebase(struct cxl *adapter, struct pci_dev *dev) * Setup PSL Timebase Control and Status register * with the recommended Timebase Sync Count value */ - cxl_p1_write(adapter, CXL_PSL_TB_CTLSTAT, - TBSYNC_CNT(2 * _2048_250MHZ_CYCLES)); + adapter->native->sl_ops->write_timebase_ctrl(adapter); /* Enable PSL Timebase */ cxl_p1_write(adapter, CXL_PSL_Control, 0x0000000000000000); @@ -435,7 +500,7 @@ static void cxl_setup_psl_timebase(struct cxl *adapter, struct pci_dev *dev) dev_info(&dev->dev, "PSL timebase can't synchronize\n"); return; } - psl_tb = cxl_p1_read(adapter, CXL_PSL_Timebase); + psl_tb = adapter->native->sl_ops->timebase_read(adapter); delta = mftb() - psl_tb; if (delta < 0) delta = -delta; @@ -445,7 +510,7 @@ static void cxl_setup_psl_timebase(struct cxl *adapter, struct pci_dev *dev) return; } -static int init_implementation_afu_regs(struct cxl_afu *afu) +static int init_implementation_afu_psl_regs(struct cxl_afu *afu) { /* read/write masks for this slice */ cxl_p1n_write(afu, CXL_PSL_APCALLOC_A, 0xFFFFFFFEFEFEFEFEULL); @@ -551,36 +616,234 @@ static int setup_cxl_bars(struct pci_dev *dev) return 0; } -/* pciex node: ibm,opal-m64-window = <0x3d058 0x0 0x3d058 0x0 0x8 0x0>; */ -static int switch_card_to_cxl(struct pci_dev *dev) -{ +#ifdef CONFIG_CXL_BIMODAL + +struct cxl_switch_work { + struct pci_dev *dev; + struct work_struct work; int vsec; + int mode; +}; + +static void switch_card_to_cxl(struct work_struct *work) +{ + struct cxl_switch_work *switch_work = + container_of(work, struct cxl_switch_work, work); + struct pci_dev *dev = switch_work->dev; + struct pci_bus *bus = dev->bus; + struct pci_controller *hose = pci_bus_to_host(bus); + struct pci_dev *bridge; + struct pnv_php_slot *php_slot; + unsigned int devfn; u8 val; int rc; - dev_info(&dev->dev, "switch card to CXL\n"); + dev_info(&bus->dev, "cxl: Preparing for mode switch...\n"); + bridge = list_first_entry_or_null(&hose->bus->devices, struct pci_dev, + bus_list); + if (!bridge) { + dev_WARN(&bus->dev, "cxl: Couldn't find root port!\n"); + goto err_dev_put; + } - if (!(vsec = find_cxl_vsec(dev))) { - dev_err(&dev->dev, "ABORTING: CXL VSEC not found!\n"); + php_slot = pnv_php_find_slot(pci_device_to_OF_node(bridge)); + if (!php_slot) { + dev_err(&bus->dev, "cxl: Failed to find slot hotplug " + "information. You may need to upgrade " + "skiboot. Aborting.\n"); + goto err_dev_put; + } + + rc = CXL_READ_VSEC_MODE_CONTROL(dev, switch_work->vsec, &val); + if (rc) { + dev_err(&bus->dev, "cxl: Failed to read CAPI mode control: %i\n", rc); + goto err_dev_put; + } + devfn = dev->devfn; + + /* Release the reference obtained in cxl_check_and_switch_mode() */ + pci_dev_put(dev); + + dev_dbg(&bus->dev, "cxl: Removing PCI devices from kernel\n"); + pci_lock_rescan_remove(); + pci_hp_remove_devices(bridge->subordinate); + pci_unlock_rescan_remove(); + + /* Switch the CXL protocol on the card */ + if (switch_work->mode == CXL_BIMODE_CXL) { + dev_info(&bus->dev, "cxl: Switching card to CXL mode\n"); + val &= ~CXL_VSEC_PROTOCOL_MASK; + val |= CXL_VSEC_PROTOCOL_256TB | CXL_VSEC_PROTOCOL_ENABLE; + rc = pnv_cxl_enable_phb_kernel_api(hose, true); + if (rc) { + dev_err(&bus->dev, "cxl: Failed to enable kernel API" + " on real PHB, aborting\n"); + goto err_free_work; + } + } else { + dev_WARN(&bus->dev, "cxl: Switching card to PCI mode not supported!\n"); + goto err_free_work; + } + + rc = CXL_WRITE_VSEC_MODE_CONTROL_BUS(bus, devfn, switch_work->vsec, val); + if (rc) { + dev_err(&bus->dev, "cxl: Failed to configure CXL protocol: %i\n", rc); + goto err_free_work; + } + + /* + * The CAIA spec (v1.1, Section 10.6 Bi-modal Device Support) states + * we must wait 100ms after this mode switch before touching PCIe config + * space. + */ + msleep(100); + + /* + * Hot reset to cause the card to come back in cxl mode. A + * OPAL_RESET_PCI_LINK would be sufficient, but currently lacks support + * in skiboot, so we use a hot reset instead. + * + * We call pci_set_pcie_reset_state() on the bridge, as a CAPI card is + * guaranteed to sit directly under the root port, and setting the reset + * state on a device directly under the root port is equivalent to doing + * it on the root port iself. + */ + dev_info(&bus->dev, "cxl: Configuration write complete, resetting card\n"); + pci_set_pcie_reset_state(bridge, pcie_hot_reset); + pci_set_pcie_reset_state(bridge, pcie_deassert_reset); + + dev_dbg(&bus->dev, "cxl: Offlining slot\n"); + rc = pnv_php_set_slot_power_state(&php_slot->slot, OPAL_PCI_SLOT_OFFLINE); + if (rc) { + dev_err(&bus->dev, "cxl: OPAL offlining call failed: %i\n", rc); + goto err_free_work; + } + + dev_dbg(&bus->dev, "cxl: Onlining and probing slot\n"); + rc = pnv_php_set_slot_power_state(&php_slot->slot, OPAL_PCI_SLOT_ONLINE); + if (rc) { + dev_err(&bus->dev, "cxl: OPAL onlining call failed: %i\n", rc); + goto err_free_work; + } + + pci_lock_rescan_remove(); + pci_hp_add_devices(bridge->subordinate); + pci_unlock_rescan_remove(); + + dev_info(&bus->dev, "cxl: CAPI mode switch completed\n"); + kfree(switch_work); + return; + +err_dev_put: + /* Release the reference obtained in cxl_check_and_switch_mode() */ + pci_dev_put(dev); +err_free_work: + kfree(switch_work); +} + +int cxl_check_and_switch_mode(struct pci_dev *dev, int mode, int vsec) +{ + struct cxl_switch_work *work; + u8 val; + int rc; + + if (!cpu_has_feature(CPU_FTR_HVMODE)) return -ENODEV; + + if (!vsec) { + vsec = find_cxl_vsec(dev); + if (!vsec) { + dev_info(&dev->dev, "CXL VSEC not found\n"); + return -ENODEV; + } } - if ((rc = CXL_READ_VSEC_MODE_CONTROL(dev, vsec, &val))) { - dev_err(&dev->dev, "failed to read current mode control: %i", rc); + rc = CXL_READ_VSEC_MODE_CONTROL(dev, vsec, &val); + if (rc) { + dev_err(&dev->dev, "Failed to read current mode control: %i", rc); return rc; } - val &= ~CXL_VSEC_PROTOCOL_MASK; - val |= CXL_VSEC_PROTOCOL_256TB | CXL_VSEC_PROTOCOL_ENABLE; - if ((rc = CXL_WRITE_VSEC_MODE_CONTROL(dev, vsec, val))) { - dev_err(&dev->dev, "failed to enable CXL protocol: %i", rc); - return rc; + + if (mode == CXL_BIMODE_PCI) { + if (!(val & CXL_VSEC_PROTOCOL_ENABLE)) { + dev_info(&dev->dev, "Card is already in PCI mode\n"); + return 0; + } + /* + * TODO: Before it's safe to switch the card back to PCI mode + * we need to disable the CAPP and make sure any cachelines the + * card holds have been flushed out. Needs skiboot support. + */ + dev_WARN(&dev->dev, "CXL mode switch to PCI unsupported!\n"); + return -EIO; } + + if (val & CXL_VSEC_PROTOCOL_ENABLE) { + dev_info(&dev->dev, "Card is already in CXL mode\n"); + return 0; + } + + dev_info(&dev->dev, "Card is in PCI mode, scheduling kernel thread " + "to switch to CXL mode\n"); + + work = kmalloc(sizeof(struct cxl_switch_work), GFP_KERNEL); + if (!work) + return -ENOMEM; + + pci_dev_get(dev); + work->dev = dev; + work->vsec = vsec; + work->mode = mode; + INIT_WORK(&work->work, switch_card_to_cxl); + + schedule_work(&work->work); + /* - * The CAIA spec (v0.12 11.6 Bi-modal Device Support) states - * we must wait 100ms after this mode switch before touching - * PCIe config space. + * We return a failure now to abort the driver init. Once the + * link has been cycled and the card is in cxl mode we will + * come back (possibly using the generic cxl driver), but + * return success as the card should then be in cxl mode. + * + * TODO: What if the card comes back in PCI mode even after + * the switch? Don't want to spin endlessly. */ - msleep(100); + return -EBUSY; +} +EXPORT_SYMBOL_GPL(cxl_check_and_switch_mode); + +#endif /* CONFIG_CXL_BIMODAL */ + +static int setup_cxl_protocol_area(struct pci_dev *dev) +{ + u8 val; + int rc; + int vsec = find_cxl_vsec(dev); + + if (!vsec) { + dev_info(&dev->dev, "CXL VSEC not found\n"); + return -ENODEV; + } + + rc = CXL_READ_VSEC_MODE_CONTROL(dev, vsec, &val); + if (rc) { + dev_err(&dev->dev, "Failed to read current mode control: %i\n", rc); + return rc; + } + + if (!(val & CXL_VSEC_PROTOCOL_ENABLE)) { + dev_err(&dev->dev, "Card not in CAPI mode!\n"); + return -EIO; + } + + if ((val & CXL_VSEC_PROTOCOL_MASK) != CXL_VSEC_PROTOCOL_256TB) { + val &= ~CXL_VSEC_PROTOCOL_MASK; + val |= CXL_VSEC_PROTOCOL_256TB; + rc = CXL_WRITE_VSEC_MODE_CONTROL(dev, vsec, val); + if (rc) { + dev_err(&dev->dev, "Failed to set CXL protocol area: %i\n", rc); + return rc; + } + } return 0; } @@ -712,6 +975,21 @@ static int cxl_afu_descriptor_looks_ok(struct cxl_afu *afu) } } + if ((afu->modes_supported & ~CXL_MODE_DEDICATED) && afu->max_procs_virtualised == 0) { + /* + * We could also check this for the dedicated process model + * since the architecture indicates it should be set to 1, but + * in that case we ignore the value and I'd rather not risk + * breaking any existing dedicated process AFUs that left it as + * 0 (not that I'm aware of any). It is clearly an error for an + * AFU directed AFU to set this to 0, and would have previously + * triggered a bug resulting in the maximum not being enforced + * at all since idr_alloc treats 0 as no maximum. + */ + dev_err(&afu->dev, "AFU does not support any processes\n"); + return -EINVAL; + } + return 0; } @@ -753,11 +1031,13 @@ static int sanitise_afu_regs(struct cxl_afu *afu) else cxl_p2n_write(afu, CXL_PSL_TFC_An, CXL_PSL_TFC_An_A); } - reg = cxl_p1n_read(afu, CXL_PSL_SERR_An); - if (reg) { - if (reg & ~0xffff) - dev_warn(&afu->dev, "AFU had pending SERR: %#016llx\n", reg); - cxl_p1n_write(afu, CXL_PSL_SERR_An, reg & ~0xffff); + if (afu->adapter->native->sl_ops->register_serr_irq) { + reg = cxl_p1n_read(afu, CXL_PSL_SERR_An); + if (reg) { + if (reg & ~0xffff) + dev_warn(&afu->dev, "AFU had pending SERR: %#016llx\n", reg); + cxl_p1n_write(afu, CXL_PSL_SERR_An, reg & ~0xffff); + } } reg = cxl_p2n_read(afu, CXL_PSL_ErrStat_An); if (reg) { @@ -835,11 +1115,13 @@ static int pci_configure_afu(struct cxl_afu *afu, struct cxl *adapter, struct pc if ((rc = cxl_afu_descriptor_looks_ok(afu))) goto err1; - if ((rc = init_implementation_afu_regs(afu))) - goto err1; + if (adapter->native->sl_ops->afu_regs_init) + if ((rc = adapter->native->sl_ops->afu_regs_init(afu))) + goto err1; - if ((rc = cxl_native_register_serr_irq(afu))) - goto err1; + if (adapter->native->sl_ops->register_serr_irq) + if ((rc = adapter->native->sl_ops->register_serr_irq(afu))) + goto err1; if ((rc = cxl_native_register_psl_irq(afu))) goto err2; @@ -847,7 +1129,8 @@ static int pci_configure_afu(struct cxl_afu *afu, struct cxl *adapter, struct pc return 0; err2: - cxl_native_release_serr_irq(afu); + if (adapter->native->sl_ops->release_serr_irq) + adapter->native->sl_ops->release_serr_irq(afu); err1: pci_unmap_slice_regs(afu); return rc; @@ -856,7 +1139,8 @@ err1: static void pci_deconfigure_afu(struct cxl_afu *afu) { cxl_native_release_psl_irq(afu); - cxl_native_release_serr_irq(afu); + if (afu->adapter->native->sl_ops->release_serr_irq) + afu->adapter->native->sl_ops->release_serr_irq(afu); pci_unmap_slice_regs(afu); } @@ -1165,7 +1449,7 @@ static int cxl_configure_adapter(struct cxl *adapter, struct pci_dev *dev) if ((rc = setup_cxl_bars(dev))) return rc; - if ((rc = switch_card_to_cxl(dev))) + if ((rc = setup_cxl_protocol_area(dev))) return rc; if ((rc = cxl_update_image_control(adapter))) @@ -1177,10 +1461,13 @@ static int cxl_configure_adapter(struct cxl *adapter, struct pci_dev *dev) if ((rc = sanitise_adapter_regs(adapter))) goto err; - if ((rc = init_implementation_adapter_regs(adapter, dev))) + if ((rc = adapter->native->sl_ops->adapter_regs_init(adapter, dev))) goto err; - if ((rc = pnv_phb_to_cxl_mode(dev, OPAL_PHB_CAPI_MODE_CAPI))) + /* Required for devices using CAPP DMA mode, harmless for others */ + pci_set_master(dev); + + if ((rc = pnv_phb_to_cxl_mode(dev, adapter->native->sl_ops->capi_mode))) goto err; /* If recovery happened, the last step is to turn on snooping. @@ -1212,6 +1499,43 @@ static void cxl_deconfigure_adapter(struct cxl *adapter) pci_disable_device(pdev); } +static const struct cxl_service_layer_ops psl_ops = { + .adapter_regs_init = init_implementation_adapter_psl_regs, + .afu_regs_init = init_implementation_afu_psl_regs, + .register_serr_irq = cxl_native_register_serr_irq, + .release_serr_irq = cxl_native_release_serr_irq, + .debugfs_add_adapter_sl_regs = cxl_debugfs_add_adapter_psl_regs, + .debugfs_add_afu_sl_regs = cxl_debugfs_add_afu_psl_regs, + .psl_irq_dump_registers = cxl_native_psl_irq_dump_regs, + .err_irq_dump_registers = cxl_native_err_irq_dump_regs, + .debugfs_stop_trace = cxl_stop_trace, + .write_timebase_ctrl = write_timebase_ctrl_psl, + .timebase_read = timebase_read_psl, + .capi_mode = OPAL_PHB_CAPI_MODE_CAPI, + .needs_reset_before_disable = true, +}; + +static const struct cxl_service_layer_ops xsl_ops = { + .adapter_regs_init = init_implementation_adapter_xsl_regs, + .debugfs_add_adapter_sl_regs = cxl_debugfs_add_adapter_xsl_regs, + .write_timebase_ctrl = write_timebase_ctrl_xsl, + .timebase_read = timebase_read_xsl, + .capi_mode = OPAL_PHB_CAPI_MODE_DMA, + .min_pe = 1, /* Workaround for Mellanox CX4 HW bug */ +}; + +static void set_sl_ops(struct cxl *adapter, struct pci_dev *dev) +{ + if (dev->vendor == PCI_VENDOR_ID_MELLANOX && dev->device == 0x1013) { + dev_info(&adapter->dev, "Device uses an XSL\n"); + adapter->native->sl_ops = &xsl_ops; + } else { + dev_info(&adapter->dev, "Device uses a PSL\n"); + adapter->native->sl_ops = &psl_ops; + } +} + + static struct cxl *cxl_pci_init_adapter(struct pci_dev *dev) { struct cxl *adapter; @@ -1227,6 +1551,8 @@ static struct cxl *cxl_pci_init_adapter(struct pci_dev *dev) goto err_release; } + set_sl_ops(adapter, dev); + /* Set defaults for parameters which need to persist over * configure/reconfigure */ @@ -1280,6 +1606,67 @@ static void cxl_pci_remove_adapter(struct cxl *adapter) device_unregister(&adapter->dev); } +#define CXL_MAX_PCIEX_PARENT 2 + +static int cxl_slot_is_switched(struct pci_dev *dev) +{ + struct device_node *np; + int depth = 0; + const __be32 *prop; + + if (!(np = pci_device_to_OF_node(dev))) { + pr_err("cxl: np = NULL\n"); + return -ENODEV; + } + of_node_get(np); + while (np) { + np = of_get_next_parent(np); + prop = of_get_property(np, "device_type", NULL); + if (!prop || strcmp((char *)prop, "pciex")) + break; + depth++; + } + of_node_put(np); + return (depth > CXL_MAX_PCIEX_PARENT); +} + +bool cxl_slot_is_supported(struct pci_dev *dev, int flags) +{ + if (!cpu_has_feature(CPU_FTR_HVMODE)) + return false; + + if ((flags & CXL_SLOT_FLAG_DMA) && (!pvr_version_is(PVR_POWER8NVL))) { + /* + * CAPP DMA mode is technically supported on regular P8, but + * will EEH if the card attempts to access memory < 4GB, which + * we cannot realistically avoid. We might be able to work + * around the issue, but until then return unsupported: + */ + return false; + } + + if (cxl_slot_is_switched(dev)) + return false; + + /* + * XXX: This gets a little tricky on regular P8 (not POWER8NVL) since + * the CAPP can be connected to PHB 0, 1 or 2 on a first come first + * served basis, which is racy to check from here. If we need to + * support this in future we might need to consider having this + * function effectively reserve it ahead of time. + * + * Currently, the only user of this API is the Mellanox CX4, which is + * only supported on P8NVL due to the above mentioned limitation of + * CAPP DMA mode and therefore does not need to worry about this. If the + * issue with CAPP DMA mode is later worked around on P8 we might need + * to revisit this. + */ + + return true; +} +EXPORT_SYMBOL_GPL(cxl_slot_is_supported); + + static int cxl_probe(struct pci_dev *dev, const struct pci_device_id *id) { struct cxl *adapter; @@ -1291,6 +1678,11 @@ static int cxl_probe(struct pci_dev *dev, const struct pci_device_id *id) return -ENODEV; } + if (cxl_slot_is_switched(dev)) { + dev_info(&dev->dev, "Ignoring card on incompatible PCI slot\n"); + return -ENODEV; + } + if (cxl_verbose) dump_cxl_config_space(dev); @@ -1311,6 +1703,9 @@ static int cxl_probe(struct pci_dev *dev, const struct pci_device_id *id) dev_err(&dev->dev, "AFU %i failed to start: %i\n", slice, rc); } + if (pnv_pci_on_cxl_phb(dev) && adapter->slices >= 1) + pnv_cxl_phb_set_peer_afu(dev, adapter->afu[0]); + return 0; } @@ -1381,6 +1776,9 @@ static pci_ers_result_t cxl_pci_error_detected(struct pci_dev *pdev, */ for (i = 0; i < adapter->slices; i++) { afu = adapter->afu[i]; + /* Only participate in EEH if we are on a virtual PHB */ + if (afu->phb == NULL) + return PCI_ERS_RESULT_NONE; cxl_vphb_error_detected(afu, state); } return PCI_ERS_RESULT_DISCONNECT; diff --git a/drivers/misc/cxl/phb.c b/drivers/misc/cxl/phb.c new file mode 100644 index 000000000000..0935d44c1770 --- /dev/null +++ b/drivers/misc/cxl/phb.c @@ -0,0 +1,44 @@ +/* + * Copyright 2014-2016 IBM Corp. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/pci.h> +#include "cxl.h" + +bool _cxl_pci_associate_default_context(struct pci_dev *dev, struct cxl_afu *afu) +{ + struct cxl_context *ctx; + + /* + * Allocate a context to do cxl things to. This is used for interrupts + * in the peer model using a real phb, and if we eventually do DMA ops + * in the virtual phb, we'll need a default context to attach them to. + */ + ctx = cxl_dev_context_init(dev); + if (!ctx) + return false; + dev->dev.archdata.cxl_ctx = ctx; + + return (cxl_ops->afu_check_and_enable(afu) == 0); +} +/* exported via cxl_base */ + +void _cxl_pci_disable_device(struct pci_dev *dev) +{ + struct cxl_context *ctx = cxl_get_context(dev); + + if (ctx) { + if (ctx->status == STARTED) { + dev_err(&dev->dev, "Default context started\n"); + return; + } + dev->dev.archdata.cxl_ctx = NULL; + cxl_release_context(ctx); + } +} +/* exported via cxl_base */ diff --git a/drivers/misc/cxl/vphb.c b/drivers/misc/cxl/vphb.c index cdc7723b845d..dee8def1c193 100644 --- a/drivers/misc/cxl/vphb.c +++ b/drivers/misc/cxl/vphb.c @@ -9,6 +9,7 @@ #include <linux/pci.h> #include <misc/cxl.h> +#include <asm/pnv-pci.h> #include "cxl.h" static int cxl_dma_set_mask(struct pci_dev *pdev, u64 dma_mask) @@ -44,7 +45,6 @@ static bool cxl_pci_enable_device_hook(struct pci_dev *dev) { struct pci_controller *phb; struct cxl_afu *afu; - struct cxl_context *ctx; phb = pci_bus_to_host(dev->bus); afu = (struct cxl_afu *)phb->private_data; @@ -57,30 +57,7 @@ static bool cxl_pci_enable_device_hook(struct pci_dev *dev) set_dma_ops(&dev->dev, &dma_direct_ops); set_dma_offset(&dev->dev, PAGE_OFFSET); - /* - * Allocate a context to do cxl things too. If we eventually do real - * DMA ops, we'll need a default context to attach them to - */ - ctx = cxl_dev_context_init(dev); - if (!ctx) - return false; - dev->dev.archdata.cxl_ctx = ctx; - - return (cxl_ops->afu_check_and_enable(afu) == 0); -} - -static void cxl_pci_disable_device(struct pci_dev *dev) -{ - struct cxl_context *ctx = cxl_get_context(dev); - - if (ctx) { - if (ctx->status == STARTED) { - dev_err(&dev->dev, "Default context started\n"); - return; - } - dev->dev.archdata.cxl_ctx = NULL; - cxl_release_context(ctx); - } + return _cxl_pci_associate_default_context(dev, afu); } static resource_size_t cxl_pci_window_alignment(struct pci_bus *bus, @@ -197,8 +174,8 @@ static struct pci_controller_ops cxl_pci_controller_ops = { .probe_mode = cxl_pci_probe_mode, .enable_device_hook = cxl_pci_enable_device_hook, - .disable_device = cxl_pci_disable_device, - .release_device = cxl_pci_disable_device, + .disable_device = _cxl_pci_disable_device, + .release_device = _cxl_pci_disable_device, .window_alignment = cxl_pci_window_alignment, .reset_secondary_bus = cxl_pci_reset_secondary_bus, .setup_msi_irqs = cxl_setup_msi_irqs, @@ -208,20 +185,30 @@ static struct pci_controller_ops cxl_pci_controller_ops = int cxl_pci_vphb_add(struct cxl_afu *afu) { - struct pci_dev *phys_dev; - struct pci_controller *phb, *phys_phb; + struct pci_controller *phb; struct device_node *vphb_dn; struct device *parent; - if (cpu_has_feature(CPU_FTR_HVMODE)) { - phys_dev = to_pci_dev(afu->adapter->dev.parent); - phys_phb = pci_bus_to_host(phys_dev->bus); - vphb_dn = phys_phb->dn; - parent = &phys_dev->dev; - } else { - vphb_dn = afu->adapter->dev.parent->of_node; - parent = afu->adapter->dev.parent; - } + /* + * If there are no AFU configuration records we won't have anything to + * expose under the vPHB, so skip creating one, returning success since + * this is still a valid case. This will also opt us out of EEH + * handling since we won't have anything special to do if there are no + * kernel drivers attached to the vPHB, and EEH handling is not yet + * supported in the peer model. + */ + if (!afu->crs_num) + return 0; + + /* The parent device is the adapter. Reuse the device node of + * the adapter. + * We don't seem to care what device node is used for the vPHB, + * but tools such as lsvpd walk up the device parents looking + * for a valid location code, so we might as well show devices + * attached to the adapter as being located on that adapter. + */ + parent = afu->adapter->dev.parent; + vphb_dn = parent->of_node; /* Alloc and setup PHB data structure */ phb = pcibios_alloc_controller(vphb_dn); @@ -272,13 +259,18 @@ void cxl_pci_vphb_remove(struct cxl_afu *afu) pcibios_free_controller(phb); } +static bool _cxl_pci_is_vphb_device(struct pci_controller *phb) +{ + return (phb->ops == &cxl_pcie_pci_ops); +} + bool cxl_pci_is_vphb_device(struct pci_dev *dev) { struct pci_controller *phb; phb = pci_bus_to_host(dev->bus); - return (phb->ops == &cxl_pcie_pci_ops); + return _cxl_pci_is_vphb_device(phb); } struct cxl_afu *cxl_pci_to_afu(struct pci_dev *dev) @@ -287,7 +279,13 @@ struct cxl_afu *cxl_pci_to_afu(struct pci_dev *dev) phb = pci_bus_to_host(dev->bus); - return (struct cxl_afu *)phb->private_data; + if (_cxl_pci_is_vphb_device(phb)) + return (struct cxl_afu *)phb->private_data; + + if (pnv_pci_on_cxl_phb(dev)) + return pnv_cxl_phb_to_afu(phb); + + return ERR_PTR(-ENODEV); } EXPORT_SYMBOL_GPL(cxl_pci_to_afu); diff --git a/drivers/mtd/devices/powernv_flash.c b/drivers/mtd/devices/powernv_flash.c index d5b870b3fd4e..f5396f26ddb4 100644 --- a/drivers/mtd/devices/powernv_flash.c +++ b/drivers/mtd/devices/powernv_flash.c @@ -95,7 +95,7 @@ static int powernv_flash_async_op(struct mtd_info *mtd, enum flash_op op, return -EIO; } - rc = be64_to_cpu(msg.params[1]); + rc = opal_get_async_rc(msg); if (rc == OPAL_SUCCESS) { rc = 0; if (retlen) diff --git a/drivers/of/base.c b/drivers/of/base.c index a4b608776c73..7792266db259 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -502,6 +502,28 @@ int of_device_is_compatible(const struct device_node *device, } EXPORT_SYMBOL(of_device_is_compatible); +/** Checks if the device is compatible with any of the entries in + * a NULL terminated array of strings. Returns the best match + * score or 0. + */ +int of_device_compatible_match(struct device_node *device, + const char *const *compat) +{ + unsigned int tmp, score = 0; + + if (!compat) + return 0; + + while (*compat) { + tmp = of_device_is_compatible(device, *compat); + if (tmp > score) + score = tmp; + compat++; + } + + return score; +} + /** * of_machine_is_compatible - Test root of device tree for a given compatible value * @compat: compatible string to look for in root node's compatible property. diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index df8caec59789..aadce45a9b4a 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -113,6 +113,19 @@ config HOTPLUG_PCI_SHPC When in doubt, say N. +config HOTPLUG_PCI_POWERNV + tristate "PowerPC PowerNV PCI Hotplug driver" + depends on PPC_POWERNV && EEH + select OF_DYNAMIC + help + Say Y here if you run PowerPC PowerNV platform that supports + PCI Hotplug + + To compile this driver as a module, choose M here: the + module will be called pnv-php. + + When in doubt, say N. + config HOTPLUG_PCI_RPA tristate "RPA PCI Hotplug driver" depends on PPC_PSERIES && EEH diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile index b616e7588ff4..e33cdda45a4d 100644 --- a/drivers/pci/hotplug/Makefile +++ b/drivers/pci/hotplug/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_HOTPLUG_PCI_PCIE) += pciehp.o obj-$(CONFIG_HOTPLUG_PCI_CPCI_ZT5550) += cpcihp_zt5550.o obj-$(CONFIG_HOTPLUG_PCI_CPCI_GENERIC) += cpcihp_generic.o obj-$(CONFIG_HOTPLUG_PCI_SHPC) += shpchp.o +obj-$(CONFIG_HOTPLUG_PCI_POWERNV) += pnv-php.o obj-$(CONFIG_HOTPLUG_PCI_RPA) += rpaphp.o obj-$(CONFIG_HOTPLUG_PCI_RPA_DLPAR) += rpadlpar_io.o obj-$(CONFIG_HOTPLUG_PCI_SGI) += sgi_hotplug.o @@ -50,6 +51,8 @@ ibmphp-objs := ibmphp_core.o \ acpiphp-objs := acpiphp_core.o \ acpiphp_glue.o +pnv-php-objs := pnv_php.o + rpaphp-objs := rpaphp_core.o \ rpaphp_pci.o \ rpaphp_slot.o diff --git a/drivers/pci/hotplug/pnv_php.c b/drivers/pci/hotplug/pnv_php.c new file mode 100644 index 000000000000..e6245b03f0a1 --- /dev/null +++ b/drivers/pci/hotplug/pnv_php.c @@ -0,0 +1,711 @@ +/* + * PCI Hotplug Driver for PowerPC PowerNV platform. + * + * Copyright Gavin Shan, IBM Corporation 2016. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/libfdt.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/pci_hotplug.h> + +#include <asm/opal.h> +#include <asm/pnv-pci.h> +#include <asm/ppc-pci.h> + +#define DRIVER_VERSION "0.1" +#define DRIVER_AUTHOR "Gavin Shan, IBM Corporation" +#define DRIVER_DESC "PowerPC PowerNV PCI Hotplug Driver" + +static LIST_HEAD(pnv_php_slot_list); +static DEFINE_SPINLOCK(pnv_php_lock); + +static void pnv_php_register(struct device_node *dn); +static void pnv_php_unregister_one(struct device_node *dn); +static void pnv_php_unregister(struct device_node *dn); + +static void pnv_php_free_slot(struct kref *kref) +{ + struct pnv_php_slot *php_slot = container_of(kref, + struct pnv_php_slot, kref); + + WARN_ON(!list_empty(&php_slot->children)); + kfree(php_slot->name); + kfree(php_slot); +} + +static inline void pnv_php_put_slot(struct pnv_php_slot *php_slot) +{ + + if (WARN_ON(!php_slot)) + return; + + kref_put(&php_slot->kref, pnv_php_free_slot); +} + +static struct pnv_php_slot *pnv_php_match(struct device_node *dn, + struct pnv_php_slot *php_slot) +{ + struct pnv_php_slot *target, *tmp; + + if (php_slot->dn == dn) { + kref_get(&php_slot->kref); + return php_slot; + } + + list_for_each_entry(tmp, &php_slot->children, link) { + target = pnv_php_match(dn, tmp); + if (target) + return target; + } + + return NULL; +} + +struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn) +{ + struct pnv_php_slot *php_slot, *tmp; + unsigned long flags; + + spin_lock_irqsave(&pnv_php_lock, flags); + list_for_each_entry(tmp, &pnv_php_slot_list, link) { + php_slot = pnv_php_match(dn, tmp); + if (php_slot) { + spin_unlock_irqrestore(&pnv_php_lock, flags); + return php_slot; + } + } + spin_unlock_irqrestore(&pnv_php_lock, flags); + + return NULL; +} +EXPORT_SYMBOL_GPL(pnv_php_find_slot); + +/* + * Remove pdn for all children of the indicated device node. + * The function should remove pdn in a depth-first manner. + */ +static void pnv_php_rmv_pdns(struct device_node *dn) +{ + struct device_node *child; + + for_each_child_of_node(dn, child) { + pnv_php_rmv_pdns(child); + + pci_remove_device_node_info(child); + } +} + +/* + * Detach all child nodes of the indicated device nodes. The + * function should handle device nodes in depth-first manner. + * + * We should not invoke of_node_release() as the memory for + * individual device node is part of large memory block. The + * large block is allocated from memblock (system bootup) or + * kmalloc() when unflattening the device tree by OF changeset. + * We can not free the large block allocated from memblock. For + * later case, it should be released at once. + */ +static void pnv_php_detach_device_nodes(struct device_node *parent) +{ + struct device_node *dn; + int refcount; + + for_each_child_of_node(parent, dn) { + pnv_php_detach_device_nodes(dn); + + of_node_put(dn); + refcount = atomic_read(&dn->kobj.kref.refcount); + if (unlikely(refcount != 1)) + pr_warn("Invalid refcount %d on <%s>\n", + refcount, of_node_full_name(dn)); + + of_detach_node(dn); + } +} + +static void pnv_php_rmv_devtree(struct pnv_php_slot *php_slot) +{ + pnv_php_rmv_pdns(php_slot->dn); + + /* + * Decrease the refcount if the device nodes were created + * through OF changeset before detaching them. + */ + if (php_slot->fdt) + of_changeset_destroy(&php_slot->ocs); + pnv_php_detach_device_nodes(php_slot->dn); + + if (php_slot->fdt) { + kfree(php_slot->dt); + kfree(php_slot->fdt); + php_slot->dt = NULL; + php_slot->dn->child = NULL; + php_slot->fdt = NULL; + } +} + +/* + * As the nodes in OF changeset are applied in reverse order, we + * need revert the nodes in advance so that we have correct node + * order after the changeset is applied. + */ +static void pnv_php_reverse_nodes(struct device_node *parent) +{ + struct device_node *child, *next; + + /* In-depth first */ + for_each_child_of_node(parent, child) + pnv_php_reverse_nodes(child); + + /* Reverse the nodes in the child list */ + child = parent->child; + parent->child = NULL; + while (child) { + next = child->sibling; + + child->sibling = parent->child; + parent->child = child; + child = next; + } +} + +static int pnv_php_populate_changeset(struct of_changeset *ocs, + struct device_node *dn) +{ + struct device_node *child; + int ret = 0; + + for_each_child_of_node(dn, child) { + ret = of_changeset_attach_node(ocs, child); + if (unlikely(ret)) + break; + + ret = pnv_php_populate_changeset(ocs, child); + if (unlikely(ret)) + break; + } + + return ret; +} + +static void *pnv_php_add_one_pdn(struct device_node *dn, void *data) +{ + struct pci_controller *hose = (struct pci_controller *)data; + struct pci_dn *pdn; + + pdn = pci_add_device_node_info(hose, dn); + if (unlikely(!pdn)) + return ERR_PTR(-ENOMEM); + + return NULL; +} + +static void pnv_php_add_pdns(struct pnv_php_slot *slot) +{ + struct pci_controller *hose = pci_bus_to_host(slot->bus); + + pci_traverse_device_nodes(slot->dn, pnv_php_add_one_pdn, hose); +} + +static int pnv_php_add_devtree(struct pnv_php_slot *php_slot) +{ + void *fdt, *fdt1, *dt; + int ret; + + /* We don't know the FDT blob size. We try to get it through + * maximal memory chunk and then copy it to another chunk that + * fits the real size. + */ + fdt1 = kzalloc(0x10000, GFP_KERNEL); + if (unlikely(!fdt1)) { + ret = -ENOMEM; + dev_warn(&php_slot->pdev->dev, "Cannot alloc FDT blob\n"); + goto out; + } + + ret = pnv_pci_get_device_tree(php_slot->dn->phandle, fdt1, 0x10000); + if (unlikely(ret)) { + dev_warn(&php_slot->pdev->dev, "Error %d getting FDT blob\n", + ret); + goto free_fdt1; + } + + fdt = kzalloc(fdt_totalsize(fdt1), GFP_KERNEL); + if (unlikely(!fdt)) { + ret = -ENOMEM; + dev_warn(&php_slot->pdev->dev, "Cannot %d bytes memory\n", + fdt_totalsize(fdt1)); + goto free_fdt1; + } + + /* Unflatten device tree blob */ + memcpy(fdt, fdt1, fdt_totalsize(fdt1)); + dt = of_fdt_unflatten_tree(fdt, php_slot->dn, NULL); + if (unlikely(!dt)) { + ret = -EINVAL; + dev_warn(&php_slot->pdev->dev, "Cannot unflatten FDT\n"); + goto free_fdt; + } + + /* Initialize and apply the changeset */ + of_changeset_init(&php_slot->ocs); + pnv_php_reverse_nodes(php_slot->dn); + ret = pnv_php_populate_changeset(&php_slot->ocs, php_slot->dn); + if (unlikely(ret)) { + pnv_php_reverse_nodes(php_slot->dn); + dev_warn(&php_slot->pdev->dev, "Error %d populating changeset\n", + ret); + goto free_dt; + } + + php_slot->dn->child = NULL; + ret = of_changeset_apply(&php_slot->ocs); + if (unlikely(ret)) { + dev_warn(&php_slot->pdev->dev, "Error %d applying changeset\n", + ret); + goto destroy_changeset; + } + + /* Add device node firmware data */ + pnv_php_add_pdns(php_slot); + php_slot->fdt = fdt; + php_slot->dt = dt; + kfree(fdt1); + goto out; + +destroy_changeset: + of_changeset_destroy(&php_slot->ocs); +free_dt: + kfree(dt); + php_slot->dn->child = NULL; +free_fdt: + kfree(fdt); +free_fdt1: + kfree(fdt1); +out: + return ret; +} + +int pnv_php_set_slot_power_state(struct hotplug_slot *slot, + uint8_t state) +{ + struct pnv_php_slot *php_slot = slot->private; + struct opal_msg msg; + int ret; + + ret = pnv_pci_set_power_state(php_slot->id, state, &msg); + if (likely(ret > 0)) { + if (be64_to_cpu(msg.params[1]) != php_slot->dn->phandle || + be64_to_cpu(msg.params[2]) != state || + be64_to_cpu(msg.params[3]) != OPAL_SUCCESS) { + dev_warn(&php_slot->pdev->dev, "Wrong msg (%lld, %lld, %lld)\n", + be64_to_cpu(msg.params[1]), + be64_to_cpu(msg.params[2]), + be64_to_cpu(msg.params[3])); + return -ENOMSG; + } + } else if (unlikely(ret < 0)) { + dev_warn(&php_slot->pdev->dev, "Error %d powering %s\n", + ret, (state == OPAL_PCI_SLOT_POWER_ON) ? "on" : "off"); + return ret; + } + + if (state == OPAL_PCI_SLOT_POWER_OFF || state == OPAL_PCI_SLOT_OFFLINE) + pnv_php_rmv_devtree(php_slot); + else + ret = pnv_php_add_devtree(php_slot); + + return ret; +} +EXPORT_SYMBOL_GPL(pnv_php_set_slot_power_state); + +static int pnv_php_get_power_state(struct hotplug_slot *slot, u8 *state) +{ + struct pnv_php_slot *php_slot = slot->private; + uint8_t power_state = OPAL_PCI_SLOT_POWER_ON; + int ret; + + /* + * Retrieve power status from firmware. If we fail + * getting that, the power status fails back to + * be on. + */ + ret = pnv_pci_get_power_state(php_slot->id, &power_state); + if (unlikely(ret)) { + dev_warn(&php_slot->pdev->dev, "Error %d getting power status\n", + ret); + } else { + *state = power_state; + slot->info->power_status = power_state; + } + + return 0; +} + +static int pnv_php_get_adapter_state(struct hotplug_slot *slot, u8 *state) +{ + struct pnv_php_slot *php_slot = slot->private; + uint8_t presence = OPAL_PCI_SLOT_EMPTY; + int ret; + + /* + * Retrieve presence status from firmware. If we can't + * get that, it will fail back to be empty. + */ + ret = pnv_pci_get_presence_state(php_slot->id, &presence); + if (likely(ret >= 0)) { + *state = presence; + slot->info->adapter_status = presence; + ret = 0; + } else { + dev_warn(&php_slot->pdev->dev, "Error %d getting presence\n", + ret); + } + + return ret; +} + +static int pnv_php_set_attention_state(struct hotplug_slot *slot, u8 state) +{ + /* FIXME: Make it real once firmware supports it */ + slot->info->attention_status = state; + + return 0; +} + +static int pnv_php_enable(struct pnv_php_slot *php_slot, bool rescan) +{ + struct hotplug_slot *slot = &php_slot->slot; + uint8_t presence = OPAL_PCI_SLOT_EMPTY; + uint8_t power_status = OPAL_PCI_SLOT_POWER_ON; + int ret; + + /* Check if the slot has been configured */ + if (php_slot->state != PNV_PHP_STATE_REGISTERED) + return 0; + + /* Retrieve slot presence status */ + ret = pnv_php_get_adapter_state(slot, &presence); + if (unlikely(ret)) + return ret; + + /* Proceed if there have nothing behind the slot */ + if (presence == OPAL_PCI_SLOT_EMPTY) + goto scan; + + /* + * If the power supply to the slot is off, we can't detect + * adapter presence state. That means we have to turn the + * slot on before going to probe slot's presence state. + * + * On the first time, we don't change the power status to + * boost system boot with assumption that the firmware + * supplies consistent slot power status: empty slot always + * has its power off and non-empty slot has its power on. + */ + if (!php_slot->power_state_check) { + php_slot->power_state_check = true; + + ret = pnv_php_get_power_state(slot, &power_status); + if (unlikely(ret)) + return ret; + + if (power_status != OPAL_PCI_SLOT_POWER_ON) + return 0; + } + + /* Check the power status. Scan the slot if it is already on */ + ret = pnv_php_get_power_state(slot, &power_status); + if (unlikely(ret)) + return ret; + + if (power_status == OPAL_PCI_SLOT_POWER_ON) + goto scan; + + /* Power is off, turn it on and then scan the slot */ + ret = pnv_php_set_slot_power_state(slot, OPAL_PCI_SLOT_POWER_ON); + if (unlikely(ret)) + return ret; + +scan: + if (presence == OPAL_PCI_SLOT_PRESENT) { + if (rescan) { + pci_lock_rescan_remove(); + pci_hp_add_devices(php_slot->bus); + pci_unlock_rescan_remove(); + } + + /* Rescan for child hotpluggable slots */ + php_slot->state = PNV_PHP_STATE_POPULATED; + if (rescan) + pnv_php_register(php_slot->dn); + } else { + php_slot->state = PNV_PHP_STATE_POPULATED; + } + + return 0; +} + +static int pnv_php_enable_slot(struct hotplug_slot *slot) +{ + struct pnv_php_slot *php_slot = container_of(slot, + struct pnv_php_slot, slot); + + return pnv_php_enable(php_slot, true); +} + +static int pnv_php_disable_slot(struct hotplug_slot *slot) +{ + struct pnv_php_slot *php_slot = slot->private; + int ret; + + if (php_slot->state != PNV_PHP_STATE_POPULATED) + return 0; + + /* Remove all devices behind the slot */ + pci_lock_rescan_remove(); + pci_hp_remove_devices(php_slot->bus); + pci_unlock_rescan_remove(); + + /* Detach the child hotpluggable slots */ + pnv_php_unregister(php_slot->dn); + + /* Notify firmware and remove device nodes */ + ret = pnv_php_set_slot_power_state(slot, OPAL_PCI_SLOT_POWER_OFF); + + php_slot->state = PNV_PHP_STATE_REGISTERED; + return ret; +} + +static struct hotplug_slot_ops php_slot_ops = { + .get_power_status = pnv_php_get_power_state, + .get_adapter_status = pnv_php_get_adapter_state, + .set_attention_status = pnv_php_set_attention_state, + .enable_slot = pnv_php_enable_slot, + .disable_slot = pnv_php_disable_slot, +}; + +static void pnv_php_release(struct hotplug_slot *slot) +{ + struct pnv_php_slot *php_slot = slot->private; + unsigned long flags; + + /* Remove from global or child list */ + spin_lock_irqsave(&pnv_php_lock, flags); + list_del(&php_slot->link); + spin_unlock_irqrestore(&pnv_php_lock, flags); + + /* Detach from parent */ + pnv_php_put_slot(php_slot); + pnv_php_put_slot(php_slot->parent); +} + +static struct pnv_php_slot *pnv_php_alloc_slot(struct device_node *dn) +{ + struct pnv_php_slot *php_slot; + struct pci_bus *bus; + const char *label; + uint64_t id; + + label = of_get_property(dn, "ibm,slot-label", NULL); + if (unlikely(!label)) + return NULL; + + if (pnv_pci_get_slot_id(dn, &id)) + return NULL; + + bus = pci_find_bus_by_node(dn); + if (unlikely(!bus)) + return NULL; + + php_slot = kzalloc(sizeof(*php_slot), GFP_KERNEL); + if (unlikely(!php_slot)) + return NULL; + + php_slot->name = kstrdup(label, GFP_KERNEL); + if (unlikely(!php_slot->name)) { + kfree(php_slot); + return NULL; + } + + if (likely(dn->child && PCI_DN(dn->child))) + php_slot->slot_no = PCI_SLOT(PCI_DN(dn->child)->devfn); + else + php_slot->slot_no = -1; /* Placeholder slot */ + + kref_init(&php_slot->kref); + php_slot->state = PNV_PHP_STATE_INITIALIZED; + php_slot->dn = dn; + php_slot->pdev = bus->self; + php_slot->bus = bus; + php_slot->id = id; + php_slot->power_state_check = false; + php_slot->slot.ops = &php_slot_ops; + php_slot->slot.info = &php_slot->slot_info; + php_slot->slot.release = pnv_php_release; + php_slot->slot.private = php_slot; + + INIT_LIST_HEAD(&php_slot->children); + INIT_LIST_HEAD(&php_slot->link); + + return php_slot; +} + +static int pnv_php_register_slot(struct pnv_php_slot *php_slot) +{ + struct pnv_php_slot *parent; + struct device_node *dn = php_slot->dn; + unsigned long flags; + int ret; + + /* Check if the slot is registered or not */ + parent = pnv_php_find_slot(php_slot->dn); + if (unlikely(parent)) { + pnv_php_put_slot(parent); + return -EEXIST; + } + + /* Register PCI slot */ + ret = pci_hp_register(&php_slot->slot, php_slot->bus, + php_slot->slot_no, php_slot->name); + if (unlikely(ret)) { + dev_warn(&php_slot->pdev->dev, "Error %d registering slot\n", + ret); + return ret; + } + + /* Attach to the parent's child list or global list */ + while ((dn = of_get_parent(dn))) { + if (!PCI_DN(dn)) { + of_node_put(dn); + break; + } + + parent = pnv_php_find_slot(dn); + if (parent) { + of_node_put(dn); + break; + } + + of_node_put(dn); + } + + spin_lock_irqsave(&pnv_php_lock, flags); + php_slot->parent = parent; + if (parent) + list_add_tail(&php_slot->link, &parent->children); + else + list_add_tail(&php_slot->link, &pnv_php_slot_list); + spin_unlock_irqrestore(&pnv_php_lock, flags); + + php_slot->state = PNV_PHP_STATE_REGISTERED; + return 0; +} + +static int pnv_php_register_one(struct device_node *dn) +{ + struct pnv_php_slot *php_slot; + const __be32 *prop32; + int ret; + + /* Check if it's hotpluggable slot */ + prop32 = of_get_property(dn, "ibm,slot-pluggable", NULL); + if (!prop32 || !of_read_number(prop32, 1)) + return -ENXIO; + + prop32 = of_get_property(dn, "ibm,reset-by-firmware", NULL); + if (!prop32 || !of_read_number(prop32, 1)) + return -ENXIO; + + php_slot = pnv_php_alloc_slot(dn); + if (unlikely(!php_slot)) + return -ENODEV; + + ret = pnv_php_register_slot(php_slot); + if (unlikely(ret)) + goto free_slot; + + ret = pnv_php_enable(php_slot, false); + if (unlikely(ret)) + goto unregister_slot; + + return 0; + +unregister_slot: + pnv_php_unregister_one(php_slot->dn); +free_slot: + pnv_php_put_slot(php_slot); + return ret; +} + +static void pnv_php_register(struct device_node *dn) +{ + struct device_node *child; + + /* + * The parent slots should be registered before their + * child slots. + */ + for_each_child_of_node(dn, child) { + pnv_php_register_one(child); + pnv_php_register(child); + } +} + +static void pnv_php_unregister_one(struct device_node *dn) +{ + struct pnv_php_slot *php_slot; + + php_slot = pnv_php_find_slot(dn); + if (!php_slot) + return; + + php_slot->state = PNV_PHP_STATE_OFFLINE; + pnv_php_put_slot(php_slot); + pci_hp_deregister(&php_slot->slot); +} + +static void pnv_php_unregister(struct device_node *dn) +{ + struct device_node *child; + + /* The child slots should go before their parent slots */ + for_each_child_of_node(dn, child) { + pnv_php_unregister(child); + pnv_php_unregister_one(child); + } +} + +static int __init pnv_php_init(void) +{ + struct device_node *dn; + + pr_info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); + for_each_compatible_node(dn, NULL, "ibm,ioda2-phb") + pnv_php_register(dn); + + return 0; +} + +static void __exit pnv_php_exit(void) +{ + struct device_node *dn; + + for_each_compatible_node(dn, NULL, "ibm,ioda2-phb") + pnv_php_unregister(dn); +} + +module_init(pnv_php_init); +module_exit(pnv_php_exit); + +MODULE_VERSION(DRIVER_VERSION); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); diff --git a/drivers/pci/hotplug/rpaphp_slot.c b/drivers/pci/hotplug/rpaphp_slot.c index 6937c725b00b..388c4d8fcdd1 100644 --- a/drivers/pci/hotplug/rpaphp_slot.c +++ b/drivers/pci/hotplug/rpaphp_slot.c @@ -117,8 +117,10 @@ EXPORT_SYMBOL_GPL(rpaphp_deregister_slot); int rpaphp_register_slot(struct slot *slot) { struct hotplug_slot *php_slot = slot->hotplug_slot; + struct device_node *child; + u32 my_index; int retval; - int slotno; + int slotno = -1; dbg("%s registering slot:path[%s] index[%x], name[%s] pdomain[%x] type[%d]\n", __func__, slot->dn->full_name, slot->index, slot->name, @@ -130,10 +132,15 @@ int rpaphp_register_slot(struct slot *slot) return -EAGAIN; } - if (slot->dn->child) - slotno = PCI_SLOT(PCI_DN(slot->dn->child)->devfn); - else - slotno = -1; + for_each_child_of_node(slot->dn, child) { + retval = of_property_read_u32(child, "ibm,my-drc-index", &my_index); + if (my_index == slot->index) { + slotno = PCI_SLOT(PCI_DN(child)->devfn); + of_node_put(child); + break; + } + } + retval = pci_hp_register(php_slot, slot->bus, slotno, slot->name); if (retval) { err("pci_hp_register failed with error %d\n", retval); diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 55641a39a3e9..d678c46e5f03 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -695,11 +695,16 @@ static void __pci_setup_bridge(struct pci_bus *bus, unsigned long type) pci_write_config_word(bridge, PCI_BRIDGE_CONTROL, bus->bridge_ctl); } +void __weak pcibios_setup_bridge(struct pci_bus *bus, unsigned long type) +{ +} + void pci_setup_bridge(struct pci_bus *bus) { unsigned long type = IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH; + pcibios_setup_bridge(bus, type); __pci_setup_bridge(bus, type); } diff --git a/drivers/rtc/rtc-opal.c b/drivers/rtc/rtc-opal.c index 9c18d6fd8107..ea20f627dabe 100644 --- a/drivers/rtc/rtc-opal.c +++ b/drivers/rtc/rtc-opal.c @@ -134,7 +134,7 @@ static int opal_get_tpo_time(struct device *dev, struct rtc_wkalrm *alarm) goto exit; } - rc = be64_to_cpu(msg.params[1]); + rc = opal_get_async_rc(msg); if (rc != OPAL_SUCCESS) { rc = -EIO; goto exit; @@ -181,7 +181,7 @@ static int opal_set_tpo_time(struct device *dev, struct rtc_wkalrm *alarm) goto exit; } - rc = be64_to_cpu(msg.params[1]); + rc = opal_get_async_rc(msg); if (rc != OPAL_SUCCESS) rc = -EIO; diff --git a/drivers/scsi/cxlflash/main.h b/drivers/scsi/cxlflash/main.h index f54bbd5a6062..e43545c86bcf 100644 --- a/drivers/scsi/cxlflash/main.h +++ b/drivers/scsi/cxlflash/main.h @@ -102,8 +102,4 @@ struct asyc_intr_info { #define SCAN_HOST 0x04 }; -#ifndef CONFIG_CXL_EEH -#define cxl_perst_reloads_same_image(_a, _b) do { } while (0) -#endif - #endif /* _CXLFLASH_MAIN_H */ diff --git a/drivers/tty/hvc/hvc_console.h b/drivers/tty/hvc/hvc_console.h index 913101980827..798c48d0d32c 100644 --- a/drivers/tty/hvc/hvc_console.h +++ b/drivers/tty/hvc/hvc_console.h @@ -60,6 +60,7 @@ struct hvc_struct { struct winsize ws; struct work_struct tty_resize; struct list_head next; + unsigned long flags; }; /* implemented by a low level driver */ diff --git a/drivers/tty/hvc/hvc_irq.c b/drivers/tty/hvc/hvc_irq.c index c9adb0559f61..bc7a96874637 100644 --- a/drivers/tty/hvc/hvc_irq.c +++ b/drivers/tty/hvc/hvc_irq.c @@ -14,6 +14,11 @@ static irqreturn_t hvc_handle_interrupt(int irq, void *dev_instance) /* if hvc_poll request a repoll, then kick the hvcd thread */ if (hvc_poll(dev_instance)) hvc_kick(); + + /* + * We're safe to always return IRQ_HANDLED as the hvcd thread will + * iterate through each hvc_struct. + */ return IRQ_HANDLED; } @@ -28,8 +33,8 @@ int notifier_add_irq(struct hvc_struct *hp, int irq) hp->irq_requested = 0; return 0; } - rc = request_irq(irq, hvc_handle_interrupt, 0, - "hvc_console", hp); + rc = request_irq(irq, hvc_handle_interrupt, hp->flags, + "hvc_console", hp); if (!rc) hp->irq_requested = 1; return rc; diff --git a/drivers/tty/hvc/hvc_opal.c b/drivers/tty/hvc/hvc_opal.c index 47b54c6aefd2..510799311099 100644 --- a/drivers/tty/hvc/hvc_opal.c +++ b/drivers/tty/hvc/hvc_opal.c @@ -214,7 +214,13 @@ static int hvc_opal_probe(struct platform_device *dev) dev->dev.of_node->full_name, boot ? " (boot console)" : ""); - irq = opal_event_request(ilog2(OPAL_EVENT_CONSOLE_INPUT)); + irq = irq_of_parse_and_map(dev->dev.of_node, 0); + if (!irq) { + pr_info("hvc%d: No interrupts property, using OPAL event\n", + termno); + irq = opal_event_request(ilog2(OPAL_EVENT_CONSOLE_INPUT)); + } + if (!irq) { pr_err("hvc_opal: Unable to map interrupt for device %s\n", dev->dev.of_node->full_name); @@ -224,6 +230,9 @@ static int hvc_opal_probe(struct platform_device *dev) hp = hvc_alloc(termno, irq, ops, MAX_VIO_PUT_CHARS); if (IS_ERR(hp)) return PTR_ERR(hp); + + /* hvc consoles on powernv may need to share a single irq */ + hp->flags = IRQF_SHARED; dev_set_drvdata(&dev->dev, hp); return 0; diff --git a/include/linux/of.h b/include/linux/of.h index 15c43f076b23..eb8d4b4c5dfc 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -324,6 +324,8 @@ extern int of_property_read_string_helper(const struct device_node *np, const char **out_strs, size_t sz, int index); extern int of_device_is_compatible(const struct device_node *device, const char *); +extern int of_device_compatible_match(struct device_node *device, + const char *const *compat); extern bool of_device_is_available(const struct device_node *device); extern bool of_device_is_big_endian(const struct device_node *device); extern const void *of_get_property(const struct device_node *node, diff --git a/include/linux/pci.h b/include/linux/pci.h index b67e4df20801..c40ac910cce4 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -854,6 +854,7 @@ void pci_stop_and_remove_bus_device_locked(struct pci_dev *dev); void pci_stop_root_bus(struct pci_bus *bus); void pci_remove_root_bus(struct pci_bus *bus); void pci_setup_cardbus(struct pci_bus *bus); +void pcibios_setup_bridge(struct pci_bus *bus, unsigned long type); void pci_sort_breadthfirst(void); #define dev_is_pci(d) ((d)->bus == &pci_bus_type) #define dev_is_pf(d) ((dev_is_pci(d) ? to_pci_dev(d)->is_physfn : false)) diff --git a/include/misc/cxl-base.h b/include/misc/cxl-base.h index 5ae962512fb8..b2ebc91fe09a 100644 --- a/include/misc/cxl-base.h +++ b/include/misc/cxl-base.h @@ -10,6 +10,8 @@ #ifndef _MISC_CXL_BASE_H #define _MISC_CXL_BASE_H +#include <misc/cxl.h> + #ifdef CONFIG_CXL_BASE #define CXL_IRQ_RANGES 4 @@ -36,12 +38,24 @@ static inline void cxl_ctx_put(void) atomic_dec(&cxl_use_count); } +struct cxl_afu *cxl_afu_get(struct cxl_afu *afu); +void cxl_afu_put(struct cxl_afu *afu); void cxl_slbia(struct mm_struct *mm); +bool cxl_pci_associate_default_context(struct pci_dev *dev, struct cxl_afu *afu); +void cxl_pci_disable_device(struct pci_dev *dev); +int cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type); +void cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev); #else /* CONFIG_CXL_BASE */ static inline bool cxl_ctx_in_use(void) { return false; } +static inline struct cxl_afu *cxl_afu_get(struct cxl_afu *afu) { return NULL; } +static inline void cxl_afu_put(struct cxl_afu *afu) {} static inline void cxl_slbia(struct mm_struct *mm) {} +static inline bool cxl_pci_associate_default_context(struct pci_dev *dev, struct cxl_afu *afu) { return false; } +static inline void cxl_pci_disable_device(struct pci_dev *dev) {} +static inline int cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) { return -ENODEV; } +static inline void cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev) {} #endif /* CONFIG_CXL_BASE */ diff --git a/include/misc/cxl.h b/include/misc/cxl.h index 56560c5781b4..480d50a0b8ba 100644 --- a/include/misc/cxl.h +++ b/include/misc/cxl.h @@ -24,6 +24,46 @@ * generic PCI API. This API is agnostic to the actual AFU. */ +#define CXL_SLOT_FLAG_DMA 0x1 + +/* + * Checks if the given card is in a cxl capable slot. Pass CXL_SLOT_FLAG_DMA if + * the card requires CAPP DMA mode to also check if the system supports it. + * This is intended to be used by bi-modal devices to determine if they can use + * cxl mode or if they should continue running in PCI mode. + * + * Note that this only checks if the slot is cxl capable - it does not + * currently check if the CAPP is currently available for chips where it can be + * assigned to different PHBs on a first come first serve basis (i.e. P8) + */ +bool cxl_slot_is_supported(struct pci_dev *dev, int flags); + + +#define CXL_BIMODE_CXL 1 +#define CXL_BIMODE_PCI 2 + +/* + * Check the mode that the given bi-modal CXL adapter is currently in and + * change it if necessary. This does not apply to AFU drivers. + * + * If the mode matches the requested mode this function will return 0 - if the + * driver was expecting the generic CXL driver to have bound to the adapter and + * it gets this return value it should fail the probe function to give the CXL + * driver a chance to probe it. + * + * If the mode does not match it will start a background task to unplug the + * device from Linux and switch its mode, and will return -EBUSY. At this + * point the calling driver should make sure it has released the device and + * fail its probe function. + * + * The offset of the CXL VSEC can be provided to this function. If 0 is passed, + * this function will search for a CXL VSEC with ID 0x1280 and return -ENODEV + * if it is not found. + */ +#ifdef CONFIG_CXL_BIMODAL +int cxl_check_and_switch_mode(struct pci_dev *dev, int mode, int vsec); +#endif + /* Get the AFU associated with a pci_dev */ struct cxl_afu *cxl_pci_to_afu(struct pci_dev *dev); @@ -86,6 +126,13 @@ struct cxl_context *cxl_dev_context_init(struct pci_dev *dev); int cxl_release_context(struct cxl_context *ctx); /* + * Set and get private data associated with a context. Allows drivers to have a + * back pointer to some useful structure. + */ +int cxl_set_priv(struct cxl_context *ctx, void *priv); +void *cxl_get_priv(struct cxl_context *ctx); + +/* * Allocate AFU interrupts for this context. num=0 will allocate the default * for this AFU as given in the AFU descriptor. This number doesn't include the * interrupt 0 (CAIA defines AFU IRQ 0 for page faults). Each interrupt to be @@ -144,6 +191,25 @@ void cxl_psa_unmap(void __iomem *addr); /* Get the process element for this context */ int cxl_process_element(struct cxl_context *ctx); +/* + * Limit the number of interrupts that a single context can allocate via + * cxl_start_work. If using the api with a real phb, this may be used to + * request that additional default contexts be created when allocating + * interrupts via pci_enable_msix_range. These will be set to the same running + * state as the default context, and if that is running it will reuse the + * parameters previously passed to cxl_start_context for the default context. + */ +int cxl_set_max_irqs_per_process(struct pci_dev *dev, int irqs); +int cxl_get_max_irqs_per_process(struct pci_dev *dev); + +/* + * Use to simultaneously iterate over hardware interrupt numbers, contexts and + * afu interrupt numbers allocated for the device via pci_enable_msix_range and + * is a useful convenience function when working with hardware that has + * limitations on the number of interrupts per process. *ctx and *afu_irq + * should be NULL and 0 to start the iteration. + */ +int cxl_next_msi_hwirq(struct pci_dev *pdev, struct cxl_context **ctx, int *afu_irq); /* * These calls allow drivers to create their own file descriptors and make them @@ -220,4 +286,52 @@ void cxl_perst_reloads_same_image(struct cxl_afu *afu, */ ssize_t cxl_read_adapter_vpd(struct pci_dev *dev, void *buf, size_t count); +/* + * AFU driver ops allow an AFU driver to create their own events to pass to + * userspace through the file descriptor as a simpler alternative to overriding + * the read() and poll() calls that works with the generic cxl events. These + * events are given priority over the generic cxl events, so they will be + * delivered first if multiple types of events are pending. + * + * The AFU driver must call cxl_context_events_pending() to notify the cxl + * driver that new events are ready to be delivered for a specific context. + * cxl_context_events_pending() will adjust the current count of AFU driver + * events for this context, and wake up anyone waiting on the context wait + * queue. + * + * The cxl driver will then call fetch_event() to get a structure defining + * the size and address of the driver specific event data. The cxl driver + * will build a cxl header with type and process_element fields filled in, + * and header.size set to sizeof(struct cxl_event_header) + data_size. + * The total size of the event is limited to CXL_READ_MIN_SIZE (4K). + * + * fetch_event() is called with a spin lock held, so it must not sleep. + * + * The cxl driver will then deliver the event to userspace, and finally + * call event_delivered() to return the status of the operation, identified + * by cxl context and AFU driver event data pointers. + * 0 Success + * -EFAULT copy_to_user() has failed + * -EINVAL Event data pointer is NULL, or event size is greater than + * CXL_READ_MIN_SIZE. + */ +struct cxl_afu_driver_ops { + struct cxl_event_afu_driver_reserved *(*fetch_event) ( + struct cxl_context *ctx); + void (*event_delivered) (struct cxl_context *ctx, + struct cxl_event_afu_driver_reserved *event, + int rc); +}; + +/* + * Associate the above driver ops with a specific context. + * Reset the current count of AFU driver events. + */ +void cxl_set_driver_ops(struct cxl_context *ctx, + struct cxl_afu_driver_ops *ops); + +/* Notify cxl driver that new events are ready to be delivered for context */ +void cxl_context_events_pending(struct cxl_context *ctx, + unsigned int new_events); + #endif /* _MISC_CXL_H */ diff --git a/include/uapi/misc/cxl.h b/include/uapi/misc/cxl.h index 8cd334f99ddc..cbae529b7ce0 100644 --- a/include/uapi/misc/cxl.h +++ b/include/uapi/misc/cxl.h @@ -93,6 +93,7 @@ enum cxl_event_type { CXL_EVENT_AFU_INTERRUPT = 1, CXL_EVENT_DATA_STORAGE = 2, CXL_EVENT_AFU_ERROR = 3, + CXL_EVENT_AFU_DRIVER = 4, }; struct cxl_event_header { @@ -124,12 +125,28 @@ struct cxl_event_afu_error { __u64 error; }; +struct cxl_event_afu_driver_reserved { + /* + * Defines the buffer passed to the cxl driver by the AFU driver. + * + * This is not ABI since the event header.size passed to the user for + * existing events is set in the read call to sizeof(cxl_event_header) + * + sizeof(whatever event is being dispatched) and the user is already + * required to use a 4K buffer on the read call. + * + * Of course the contents will be ABI, but that's up the AFU driver. + */ + size_t data_size; + u8 data[]; +}; + struct cxl_event { struct cxl_event_header header; union { struct cxl_event_afu_interrupt irq; struct cxl_event_data_storage fault; struct cxl_event_afu_error afu_error; + struct cxl_event_afu_driver_reserved afu_driver_event; }; }; diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile index 4ca83fe80654..3c40c9d0e6c7 100644 --- a/tools/testing/selftests/powerpc/Makefile +++ b/tools/testing/selftests/powerpc/Makefile @@ -12,7 +12,8 @@ CFLAGS := -Wall -O2 -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(CURDIR) $ export CFLAGS -SUB_DIRS = benchmarks \ +SUB_DIRS = alignment \ + benchmarks \ copyloops \ context_switch \ dscr \ diff --git a/tools/testing/selftests/powerpc/alignment/.gitignore b/tools/testing/selftests/powerpc/alignment/.gitignore new file mode 100644 index 000000000000..1d980e3d7039 --- /dev/null +++ b/tools/testing/selftests/powerpc/alignment/.gitignore @@ -0,0 +1,5 @@ +copy_unaligned +copy_first_unaligned +paste_unaligned +paste_last_unaligned +copy_paste_unaligned_common diff --git a/tools/testing/selftests/powerpc/alignment/Makefile b/tools/testing/selftests/powerpc/alignment/Makefile new file mode 100644 index 000000000000..ad6a4e49da91 --- /dev/null +++ b/tools/testing/selftests/powerpc/alignment/Makefile @@ -0,0 +1,10 @@ +TEST_PROGS := copy_unaligned copy_first_unaligned paste_unaligned paste_last_unaligned + +all: $(TEST_PROGS) + +$(TEST_PROGS): ../harness.c ../utils.c copy_paste_unaligned_common.c + +include ../../lib.mk + +clean: + rm -f $(TEST_PROGS) diff --git a/tools/testing/selftests/powerpc/alignment/copy_first_unaligned.c b/tools/testing/selftests/powerpc/alignment/copy_first_unaligned.c new file mode 100644 index 000000000000..47b73b3a08bd --- /dev/null +++ b/tools/testing/selftests/powerpc/alignment/copy_first_unaligned.c @@ -0,0 +1,41 @@ +/* + * Copyright 2016, Chris Smart, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Calls to copy_first which are not 128-byte aligned should be + * caught and sent a SIGBUS. + * + */ + +#include <string.h> +#include <unistd.h> +#include "utils.h" +#include "instructions.h" +#include "copy_paste_unaligned_common.h" + +unsigned int expected_instruction = PPC_INST_COPY_FIRST; +unsigned int instruction_mask = 0xfc2007fe; + +int test_copy_first_unaligned(void) +{ + /* Only run this test on a P9 or later */ + SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00)); + + /* Register our signal handler with SIGBUS */ + setup_signal_handler(); + + /* +1 makes buf unaligned */ + copy_first(cacheline_buf+1); + + /* We should not get here */ + return 1; +} + +int main(int argc, char *argv[]) +{ + return test_harness(test_copy_first_unaligned, "test_copy_first_unaligned"); +} diff --git a/tools/testing/selftests/powerpc/alignment/copy_paste_unaligned_common.c b/tools/testing/selftests/powerpc/alignment/copy_paste_unaligned_common.c new file mode 100644 index 000000000000..d35fa5f5d2d3 --- /dev/null +++ b/tools/testing/selftests/powerpc/alignment/copy_paste_unaligned_common.c @@ -0,0 +1,53 @@ +/* + * Copyright 2016, Chris Smart, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Common code for copy, copy_first, paste and paste_last unaligned + * tests. + * + */ + +#include <signal.h> +#include <string.h> +#include <unistd.h> +#include "utils.h" +#include "instructions.h" +#include "copy_paste_unaligned_common.h" + +unsigned int expected_instruction; +unsigned int instruction_mask; + +char cacheline_buf[128] __cacheline_aligned; + +void signal_action_handler(int signal_num, siginfo_t *info, void *ptr) +{ + ucontext_t *ctx = ptr; +#if defined(__powerpc64__) + unsigned int *pc = (unsigned int *)ctx->uc_mcontext.gp_regs[PT_NIP]; +#else + unsigned int *pc = (unsigned int *)ctx->uc_mcontext.uc_regs->gregs[PT_NIP]; +#endif + + /* + * Check that the signal was on the correct instruction, using a + * mask because the compiler assigns the register at RB. + */ + if ((*pc & instruction_mask) == expected_instruction) + _exit(0); /* We hit the right instruction */ + + _exit(1); +} + +void setup_signal_handler(void) +{ + struct sigaction signal_action; + + memset(&signal_action, 0, sizeof(signal_action)); + signal_action.sa_sigaction = signal_action_handler; + signal_action.sa_flags = SA_SIGINFO; + sigaction(SIGBUS, &signal_action, NULL); +} diff --git a/tools/testing/selftests/powerpc/alignment/copy_paste_unaligned_common.h b/tools/testing/selftests/powerpc/alignment/copy_paste_unaligned_common.h new file mode 100644 index 000000000000..053899fe506e --- /dev/null +++ b/tools/testing/selftests/powerpc/alignment/copy_paste_unaligned_common.h @@ -0,0 +1,26 @@ +/* + * Copyright 2016, Chris Smart, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Declarations for common code for copy, copy_first, paste and + * paste_last unaligned tests. + * + */ + +#ifndef _SELFTESTS_POWERPC_COPY_PASTE_H +#define _SELFTESTS_POWERPC_COPY_PASTE_H + +#include <signal.h> + +int main(int argc, char *argv[]); +void signal_action_handler(int signal_num, siginfo_t *info, void *ptr); +void setup_signal_handler(void); +extern char cacheline_buf[128] __cacheline_aligned; +extern unsigned int expected_instruction; +extern unsigned int instruction_mask; + +#endif /* _SELFTESTS_POWERPC_COPY_PASTE_H */ diff --git a/tools/testing/selftests/powerpc/alignment/copy_unaligned.c b/tools/testing/selftests/powerpc/alignment/copy_unaligned.c new file mode 100644 index 000000000000..3a4e26461554 --- /dev/null +++ b/tools/testing/selftests/powerpc/alignment/copy_unaligned.c @@ -0,0 +1,41 @@ +/* + * Copyright 2016, Chris Smart, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Calls to copy which are not 128-byte aligned should be caught + * and sent a SIGBUS. + * + */ + +#include <string.h> +#include <unistd.h> +#include "utils.h" +#include "instructions.h" +#include "copy_paste_unaligned_common.h" + +unsigned int expected_instruction = PPC_INST_COPY; +unsigned int instruction_mask = 0xfc0007fe; + +int test_copy_unaligned(void) +{ + /* Only run this test on a P9 or later */ + SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00)); + + /* Register our signal handler with SIGBUS */ + setup_signal_handler(); + + /* +1 makes buf unaligned */ + copy(cacheline_buf+1); + + /* We should not get here */ + return 1; +} + +int main(int argc, char *argv[]) +{ + return test_harness(test_copy_unaligned, "test_copy_unaligned"); +} diff --git a/tools/testing/selftests/powerpc/alignment/paste_last_unaligned.c b/tools/testing/selftests/powerpc/alignment/paste_last_unaligned.c new file mode 100644 index 000000000000..6e0ad045fcc3 --- /dev/null +++ b/tools/testing/selftests/powerpc/alignment/paste_last_unaligned.c @@ -0,0 +1,43 @@ +/* + * Copyright 2016, Chris Smart, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Calls to paste_last which are not 128-byte aligned should be + * caught and sent a SIGBUS. + * + */ + +#include <string.h> +#include <unistd.h> +#include "utils.h" +#include "instructions.h" +#include "copy_paste_unaligned_common.h" + +unsigned int expected_instruction = PPC_INST_PASTE_LAST; +unsigned int instruction_mask = 0xfc2007ff; + +int test_paste_last_unaligned(void) +{ + /* Only run this test on a P9 or later */ + SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00)); + + /* Register our signal handler with SIGBUS */ + setup_signal_handler(); + + copy(cacheline_buf); + + /* +1 makes buf unaligned */ + paste_last(cacheline_buf+1); + + /* We should not get here */ + return 1; +} + +int main(int argc, char *argv[]) +{ + return test_harness(test_paste_last_unaligned, "test_paste_last_unaligned"); +} diff --git a/tools/testing/selftests/powerpc/alignment/paste_unaligned.c b/tools/testing/selftests/powerpc/alignment/paste_unaligned.c new file mode 100644 index 000000000000..6f982b45e4bd --- /dev/null +++ b/tools/testing/selftests/powerpc/alignment/paste_unaligned.c @@ -0,0 +1,43 @@ +/* + * Copyright 2016, Chris Smart, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Calls to paste which are not 128-byte aligned should be caught + * and sent a SIGBUS. + * + */ + +#include <string.h> +#include <unistd.h> +#include "utils.h" +#include "instructions.h" +#include "copy_paste_unaligned_common.h" + +unsigned int expected_instruction = PPC_INST_PASTE; +unsigned int instruction_mask = 0xfc0007fe; + +int test_paste_unaligned(void) +{ + /* Only run this test on a P9 or later */ + SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00)); + + /* Register our signal handler with SIGBUS */ + setup_signal_handler(); + + copy(cacheline_buf); + + /* +1 makes buf unaligned */ + paste(cacheline_buf+1); + + /* We should not get here */ + return 1; +} + +int main(int argc, char *argv[]) +{ + return test_harness(test_paste_unaligned, "test_paste_unaligned"); +} diff --git a/tools/testing/selftests/powerpc/benchmarks/.gitignore b/tools/testing/selftests/powerpc/benchmarks/.gitignore index 6fa673316ac2..bce49ebd869e 100644 --- a/tools/testing/selftests/powerpc/benchmarks/.gitignore +++ b/tools/testing/selftests/powerpc/benchmarks/.gitignore @@ -1,2 +1,4 @@ gettimeofday context_switch +mmap_bench +futex_bench
\ No newline at end of file diff --git a/tools/testing/selftests/powerpc/benchmarks/Makefile b/tools/testing/selftests/powerpc/benchmarks/Makefile index 912445ff7ce7..a9adfb7de78f 100644 --- a/tools/testing/selftests/powerpc/benchmarks/Makefile +++ b/tools/testing/selftests/powerpc/benchmarks/Makefile @@ -1,4 +1,4 @@ -TEST_PROGS := gettimeofday context_switch +TEST_PROGS := gettimeofday context_switch mmap_bench futex_bench CFLAGS += -O2 @@ -7,6 +7,7 @@ all: $(TEST_PROGS) $(TEST_PROGS): ../harness.c context_switch: ../utils.c +context_switch: CFLAGS += -maltivec -mvsx -mabi=altivec context_switch: LDLIBS += -lpthread include ../../lib.mk diff --git a/tools/testing/selftests/powerpc/benchmarks/context_switch.c b/tools/testing/selftests/powerpc/benchmarks/context_switch.c index 7b785941adec..a36883ad48a4 100644 --- a/tools/testing/selftests/powerpc/benchmarks/context_switch.c +++ b/tools/testing/selftests/powerpc/benchmarks/context_switch.c @@ -25,7 +25,9 @@ #include <sys/types.h> #include <sys/shm.h> #include <linux/futex.h> - +#ifdef __powerpc__ +#include <altivec.h> +#endif #include "../utils.h" static unsigned int timeout = 30; @@ -37,12 +39,15 @@ static int touch_fp = 1; double fp; static int touch_vector = 1; -typedef int v4si __attribute__ ((vector_size (16))); -v4si a, b, c; +vector int a, b, c; #ifdef __powerpc__ static int touch_altivec = 1; +/* + * Note: LTO (Link Time Optimisation) doesn't play well with this function + * attribute. Be very careful enabling LTO for this test. + */ static void __attribute__((__target__("no-vsx"))) altivec_touch_fn(void) { c = a + b; @@ -369,11 +374,11 @@ static void usage(void) fprintf(stderr, "\t\t--process\tUse processes (default threads)\n"); fprintf(stderr, "\t\t--timeout=X\tDuration in seconds to run (default 30)\n"); fprintf(stderr, "\t\t--vdso\t\ttouch VDSO\n"); - fprintf(stderr, "\t\t--fp\t\ttouch FP\n"); + fprintf(stderr, "\t\t--no-fp\t\tDon't touch FP\n"); #ifdef __powerpc__ - fprintf(stderr, "\t\t--altivec\ttouch altivec\n"); + fprintf(stderr, "\t\t--no-altivec\tDon't touch altivec\n"); #endif - fprintf(stderr, "\t\t--vector\ttouch vector\n"); + fprintf(stderr, "\t\t--no-vector\tDon't touch vector\n"); } int main(int argc, char *argv[]) diff --git a/tools/testing/selftests/powerpc/benchmarks/futex_bench.c b/tools/testing/selftests/powerpc/benchmarks/futex_bench.c new file mode 100644 index 000000000000..2fc711d9150d --- /dev/null +++ b/tools/testing/selftests/powerpc/benchmarks/futex_bench.c @@ -0,0 +1,42 @@ +/* + * Copyright 2016, Anton Blanchard, Michael Ellerman, IBM Corp. + * Licensed under GPLv2. + */ + +#define _GNU_SOURCE + +#include <stdio.h> +#include <sys/syscall.h> +#include <time.h> +#include <unistd.h> +#include <linux/futex.h> + +#include "utils.h" + +#define ITERATIONS 100000000 + +#define futex(A, B, C, D, E, F) syscall(__NR_futex, A, B, C, D, E, F) + +int test_futex(void) +{ + struct timespec ts_start, ts_end; + unsigned long i = ITERATIONS; + + clock_gettime(CLOCK_MONOTONIC, &ts_start); + + while (i--) { + unsigned int addr = 0; + futex(&addr, FUTEX_WAKE, 1, NULL, NULL, 0); + } + + clock_gettime(CLOCK_MONOTONIC, &ts_end); + + printf("time = %.6f\n", ts_end.tv_sec - ts_start.tv_sec + (ts_end.tv_nsec - ts_start.tv_nsec) / 1e9); + + return 0; +} + +int main(void) +{ + return test_harness(test_futex, "futex_bench"); +} diff --git a/tools/testing/selftests/powerpc/benchmarks/mmap_bench.c b/tools/testing/selftests/powerpc/benchmarks/mmap_bench.c new file mode 100644 index 000000000000..8d084a2d6e74 --- /dev/null +++ b/tools/testing/selftests/powerpc/benchmarks/mmap_bench.c @@ -0,0 +1,41 @@ +/* + * Copyright 2016, Anton Blanchard, Michael Ellerman, IBM Corp. + * Licensed under GPLv2. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <sys/mman.h> +#include <time.h> + +#include "utils.h" + +#define ITERATIONS 5000000 + +#define MEMSIZE (128 * 1024 * 1024) + +int test_mmap(void) +{ + struct timespec ts_start, ts_end; + unsigned long i = ITERATIONS; + + clock_gettime(CLOCK_MONOTONIC, &ts_start); + + while (i--) { + char *c = mmap(NULL, MEMSIZE, PROT_READ|PROT_WRITE, + MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); + FAIL_IF(c == MAP_FAILED); + munmap(c, MEMSIZE); + } + + clock_gettime(CLOCK_MONOTONIC, &ts_end); + + printf("time = %.6f\n", ts_end.tv_sec - ts_start.tv_sec + (ts_end.tv_nsec - ts_start.tv_nsec) / 1e9); + + return 0; +} + +int main(void) +{ + return test_harness(test_mmap, "mmap_bench"); +} diff --git a/tools/testing/selftests/powerpc/instructions.h b/tools/testing/selftests/powerpc/instructions.h new file mode 100644 index 000000000000..0fb0bd3b28c9 --- /dev/null +++ b/tools/testing/selftests/powerpc/instructions.h @@ -0,0 +1,68 @@ +#ifndef _SELFTESTS_POWERPC_INSTRUCTIONS_H +#define _SELFTESTS_POWERPC_INSTRUCTIONS_H + +#include <stdio.h> +#include <stdlib.h> + +/* This defines the "copy" instruction from Power ISA 3.0 Book II, section 4.4. */ +#define __COPY(RA, RB, L) \ + (0x7c00060c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10)) +#define COPY(RA, RB, L) \ + .long __COPY((RA), (RB), (L)) + +static inline void copy(void *i) +{ + asm volatile(str(COPY(0, %0, 0))";" + : + : "b" (i) + : "memory" + ); +} + +static inline void copy_first(void *i) +{ + asm volatile(str(COPY(0, %0, 1))";" + : + : "b" (i) + : "memory" + ); +} + +/* This defines the "paste" instruction from Power ISA 3.0 Book II, section 4.4. */ +#define __PASTE(RA, RB, L, RC) \ + (0x7c00070c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10) | (RC) << (31-31)) +#define PASTE(RA, RB, L, RC) \ + .long __PASTE((RA), (RB), (L), (RC)) + +static inline int paste(void *i) +{ + int cr; + + asm volatile(str(PASTE(0, %1, 0, 0))";" + "mfcr %0;" + : "=r" (cr) + : "b" (i) + : "memory" + ); + return cr; +} + +static inline int paste_last(void *i) +{ + int cr; + + asm volatile(str(PASTE(0, %1, 1, 1))";" + "mfcr %0;" + : "=r" (cr) + : "b" (i) + : "memory" + ); + return cr; +} + +#define PPC_INST_COPY __COPY(0, 0, 0) +#define PPC_INST_COPY_FIRST __COPY(0, 0, 1) +#define PPC_INST_PASTE __PASTE(0, 0, 0, 0) +#define PPC_INST_PASTE_LAST __PASTE(0, 0, 1, 1) + +#endif /* _SELFTESTS_POWERPC_INSTRUCTIONS_H */ diff --git a/tools/testing/selftests/powerpc/mm/.gitignore b/tools/testing/selftests/powerpc/mm/.gitignore index b43ade0ec861..e715a3f2fbf4 100644 --- a/tools/testing/selftests/powerpc/mm/.gitignore +++ b/tools/testing/selftests/powerpc/mm/.gitignore @@ -1,3 +1,4 @@ hugetlb_vs_thp_test subpage_prot tempfile +prot_sao
\ No newline at end of file diff --git a/tools/testing/selftests/powerpc/mm/Makefile b/tools/testing/selftests/powerpc/mm/Makefile index ee179e22308c..3bdb96eae558 100644 --- a/tools/testing/selftests/powerpc/mm/Makefile +++ b/tools/testing/selftests/powerpc/mm/Makefile @@ -1,13 +1,15 @@ noarg: $(MAKE) -C ../ -TEST_PROGS := hugetlb_vs_thp_test subpage_prot +TEST_PROGS := hugetlb_vs_thp_test subpage_prot prot_sao TEST_FILES := tempfile all: $(TEST_PROGS) $(TEST_FILES) $(TEST_PROGS): ../harness.c +prot_sao: ../utils.c + include ../../lib.mk tempfile: diff --git a/tools/testing/selftests/powerpc/mm/prot_sao.c b/tools/testing/selftests/powerpc/mm/prot_sao.c new file mode 100644 index 000000000000..611530d43fa9 --- /dev/null +++ b/tools/testing/selftests/powerpc/mm/prot_sao.c @@ -0,0 +1,42 @@ +/* + * Copyright 2016, Michael Ellerman, IBM Corp. + * Licensed under GPLv2. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/mman.h> + +#include <asm/cputable.h> + +#include "utils.h" + +#define SIZE (64 * 1024) + +int test_prot_sao(void) +{ + char *p; + + /* 2.06 or later should support SAO */ + SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06)); + + /* + * Ensure we can ask for PROT_SAO. + * We can't really verify that it does the right thing, but at least we + * confirm the kernel will accept it. + */ + p = mmap(NULL, SIZE, PROT_READ | PROT_WRITE | PROT_SAO, + MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); + FAIL_IF(p == MAP_FAILED); + + /* Write to the mapping, to at least cause a fault */ + memset(p, 0xaa, SIZE); + + return 0; +} + +int main(void) +{ + return test_harness(test_prot_sao, "prot-sao"); +} diff --git a/tools/testing/selftests/powerpc/pmu/ebb/.gitignore b/tools/testing/selftests/powerpc/pmu/ebb/.gitignore index 42bddbed8b64..44b7df14a936 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/.gitignore +++ b/tools/testing/selftests/powerpc/pmu/ebb/.gitignore @@ -20,3 +20,5 @@ back_to_back_ebbs_test lost_exception_test no_handler_test cycles_with_mmcr2_test +ebb_lmr +ebb_lmr_regs
\ No newline at end of file diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile index 8d2279c4bb4b..6b0453e60d53 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile +++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile @@ -14,7 +14,7 @@ TEST_PROGS := reg_access_test event_attributes_test cycles_test \ fork_cleanup_test ebb_on_child_test \ ebb_on_willing_child_test back_to_back_ebbs_test \ lost_exception_test no_handler_test \ - cycles_with_mmcr2_test + cycles_with_mmcr2_test ebb_lmr ebb_lmr_regs all: $(TEST_PROGS) diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_lmr.c b/tools/testing/selftests/powerpc/pmu/ebb/ebb_lmr.c new file mode 100644 index 000000000000..c47ebd55ba4d --- /dev/null +++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_lmr.c @@ -0,0 +1,143 @@ +/* + * Copyright 2016, Jack Miller, IBM Corp. + * Licensed under GPLv2. + */ + +#include <stdlib.h> +#include <stdio.h> + +#include "ebb.h" +#include "ebb_lmr.h" + +#define SIZE (32 * 1024 * 1024) /* 32M */ +#define LM_SIZE 0 /* Smallest encoding, 32M */ + +#define SECTIONS 64 /* 1 per bit in LMSER */ +#define SECTION_SIZE (SIZE / SECTIONS) +#define SECTION_LONGS (SECTION_SIZE / sizeof(long)) + +static unsigned long *test_mem; + +static int lmr_count = 0; + +void ebb_lmr_handler(void) +{ + lmr_count++; +} + +void ldmx_full_section(unsigned long *mem, int section) +{ + unsigned long *ptr; + int i; + + for (i = 0; i < SECTION_LONGS; i++) { + ptr = &mem[(SECTION_LONGS * section) + i]; + ldmx((unsigned long) &ptr); + ebb_lmr_reset(); + } +} + +unsigned long section_masks[] = { + 0x8000000000000000, + 0xFF00000000000000, + 0x0000000F70000000, + 0x8000000000000001, + 0xF0F0F0F0F0F0F0F0, + 0x0F0F0F0F0F0F0F0F, + 0x0 +}; + +int ebb_lmr_section_test(unsigned long *mem) +{ + unsigned long *mask = section_masks; + int i; + + for (; *mask; mask++) { + mtspr(SPRN_LMSER, *mask); + printf("Testing mask 0x%016lx\n", mfspr(SPRN_LMSER)); + + for (i = 0; i < 64; i++) { + lmr_count = 0; + ldmx_full_section(mem, i); + if (*mask & (1UL << (63 - i))) + FAIL_IF(lmr_count != SECTION_LONGS); + else + FAIL_IF(lmr_count); + } + } + + return 0; +} + +int ebb_lmr(void) +{ + int i; + + SKIP_IF(!lmr_is_supported()); + + setup_ebb_handler(ebb_lmr_handler); + + ebb_global_enable(); + + FAIL_IF(posix_memalign((void **)&test_mem, SIZE, SIZE) != 0); + + mtspr(SPRN_LMSER, 0); + + FAIL_IF(mfspr(SPRN_LMSER) != 0); + + mtspr(SPRN_LMRR, ((unsigned long)test_mem | LM_SIZE)); + + FAIL_IF(mfspr(SPRN_LMRR) != ((unsigned long)test_mem | LM_SIZE)); + + /* Read every single byte to ensure we get no false positives */ + for (i = 0; i < SECTIONS; i++) + ldmx_full_section(test_mem, i); + + FAIL_IF(lmr_count != 0); + + /* Turn on the first section */ + + mtspr(SPRN_LMSER, (1UL << 63)); + FAIL_IF(mfspr(SPRN_LMSER) != (1UL << 63)); + + /* Enable LM (BESCR) */ + + mtspr(SPRN_BESCR, mfspr(SPRN_BESCR) | BESCR_LME); + FAIL_IF(!(mfspr(SPRN_BESCR) & BESCR_LME)); + + ldmx((unsigned long)&test_mem); + + FAIL_IF(lmr_count != 1); // exactly one exception + FAIL_IF(mfspr(SPRN_BESCR) & BESCR_LME); // LM now disabled + FAIL_IF(!(mfspr(SPRN_BESCR) & BESCR_LMEO)); // occurred bit set + + printf("Simple LMR EBB OK\n"); + + /* This shouldn't cause an EBB since it's been disabled */ + ldmx((unsigned long)&test_mem); + FAIL_IF(lmr_count != 1); + + printf("LMR disable on EBB OK\n"); + + ebb_lmr_reset(); + + /* This should cause an EBB or reset is broken */ + ldmx((unsigned long)&test_mem); + FAIL_IF(lmr_count != 2); + + printf("LMR reset EBB OK\n"); + + ebb_lmr_reset(); + + return ebb_lmr_section_test(test_mem); +} + +int main(void) +{ + int ret = test_harness(ebb_lmr, "ebb_lmr"); + + if (test_mem) + free(test_mem); + + return ret; +} diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_lmr.h b/tools/testing/selftests/powerpc/pmu/ebb/ebb_lmr.h new file mode 100644 index 000000000000..ef50abd557cd --- /dev/null +++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_lmr.h @@ -0,0 +1,39 @@ +#ifndef _SELFTESTS_POWERPC_PMU_EBB_LMR_H +#define _SELFTESTS_POWERPC_PMU_EBB_LMR_H + +#include "reg.h" + +#ifndef PPC_FEATURE2_ARCH_3_00 +#define PPC_FEATURE2_ARCH_3_00 0x00800000 +#endif + +#define lmr_is_supported() have_hwcap2(PPC_FEATURE2_ARCH_3_00) + +static inline void ebb_lmr_reset(void) +{ + unsigned long bescr = mfspr(SPRN_BESCR); + bescr &= ~(BESCR_LMEO); + bescr |= BESCR_LME; + mtspr(SPRN_BESCR, bescr); +} + +#define LDMX(t, a, b)\ + (0x7c00026a | \ + (((t) & 0x1f) << 21) | \ + (((a) & 0x1f) << 16) | \ + (((b) & 0x1f) << 11)) + +static inline unsigned long ldmx(unsigned long address) +{ + unsigned long ret; + + asm volatile ("mr 9, %1\r\n" + ".long " __stringify(LDMX(9, 0, 9)) "\r\n" + "mr %0, 9\r\n":"=r"(ret) + :"r"(address) + :"r9"); + + return ret; +} + +#endif diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_lmr_regs.c b/tools/testing/selftests/powerpc/pmu/ebb/ebb_lmr_regs.c new file mode 100644 index 000000000000..aff4241fd88a --- /dev/null +++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_lmr_regs.c @@ -0,0 +1,37 @@ +/* + * Copyright 2016, Jack Miller, IBM Corp. + * Licensed under GPLv2. + */ + +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> + +#include "ebb.h" +#include "ebb_lmr.h" + +#define CHECKS 10000 + +int ebb_lmr_regs(void) +{ + int i; + + SKIP_IF(!lmr_is_supported()); + + ebb_global_enable(); + + for (i = 0; i < CHECKS; i++) { + mtspr(SPRN_LMRR, i << 25); // skip size and rsvd bits + mtspr(SPRN_LMSER, i); + + FAIL_IF(mfspr(SPRN_LMRR) != (i << 25)); + FAIL_IF(mfspr(SPRN_LMSER) != i); + } + + return 0; +} + +int main(void) +{ + return test_harness(ebb_lmr_regs, "ebb_lmr_regs"); +} diff --git a/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c b/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c index 5da355135df2..ae9a79086111 100644 --- a/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c +++ b/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c @@ -51,7 +51,7 @@ static int do_count_loop(struct event *event, uint64_t instructions, printf("Looped for %lu instructions, overhead %lu\n", instructions, overhead); printf("Expected %lu\n", expected); printf("Actual %llu\n", event->result.value); - printf("Error %ld, %f%%\n", difference, percentage); + printf("Delta %ld, %f%%\n", difference, percentage); printf("Took %d EBBs\n", ebb_state.stats.ebb_count); } diff --git a/tools/testing/selftests/powerpc/pmu/lib.c b/tools/testing/selftests/powerpc/pmu/lib.c index a361ad3334ce..8b992fa5b478 100644 --- a/tools/testing/selftests/powerpc/pmu/lib.c +++ b/tools/testing/selftests/powerpc/pmu/lib.c @@ -190,7 +190,7 @@ int parse_proc_maps(void) bool require_paranoia_below(int level) { - unsigned long current; + long current; char *end, buf[16]; FILE *f; int rc; @@ -208,7 +208,7 @@ bool require_paranoia_below(int level) goto out_close; } - current = strtoul(buf, &end, 10); + current = strtol(buf, &end, 10); if (end == buf) { printf("Couldn't parse " PARANOID_PATH "?\n"); @@ -216,7 +216,7 @@ bool require_paranoia_below(int level) } if (current >= level) - goto out; + goto out_close; rc = 0; out_close: diff --git a/tools/testing/selftests/powerpc/reg.h b/tools/testing/selftests/powerpc/reg.h index 65bfdeeebdee..fddf368ed82f 100644 --- a/tools/testing/selftests/powerpc/reg.h +++ b/tools/testing/selftests/powerpc/reg.h @@ -34,6 +34,11 @@ #define BESCR_PMEO 0x1 /* PMU Event-based exception Occurred */ #define BESCR_PME (0x1ul << 32) /* PMU Event-based exception Enable */ +#define BESCR_LME (0x1ul << 34) /* Load Monitor Enable */ +#define BESCR_LMEO (0x1ul << 2) /* Load Monitor Exception Occurred */ + +#define SPRN_LMRR 813 /* Load Monitor Region Register */ +#define SPRN_LMSER 814 /* Load Monitor Section Enable Register */ #define SPRN_PMC1 771 #define SPRN_PMC2 772 diff --git a/tools/testing/selftests/powerpc/tm/.gitignore b/tools/testing/selftests/powerpc/tm/.gitignore index bb942db845bf..82c0a9ce6e74 100644 --- a/tools/testing/selftests/powerpc/tm/.gitignore +++ b/tools/testing/selftests/powerpc/tm/.gitignore @@ -6,3 +6,4 @@ tm-vmxcopy tm-fork tm-tar tm-tmspr +tm-exec diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile index d0505dbd22d5..9d301d785d9e 100644 --- a/tools/testing/selftests/powerpc/tm/Makefile +++ b/tools/testing/selftests/powerpc/tm/Makefile @@ -1,11 +1,14 @@ -TEST_PROGS := tm-resched-dscr tm-syscall tm-signal-msr-resv tm-signal-stack tm-vmxcopy tm-fork tm-tar tm-tmspr +TEST_PROGS := tm-resched-dscr tm-syscall tm-signal-msr-resv tm-signal-stack \ + tm-vmxcopy tm-fork tm-tar tm-tmspr tm-exec tm-execed all: $(TEST_PROGS) $(TEST_PROGS): ../harness.c ../utils.c +CFLAGS += -mhtm + tm-syscall: tm-syscall-asm.S -tm-syscall: CFLAGS += -mhtm -I../../../../../usr/include +tm-syscall: CFLAGS += -I../../../../../usr/include tm-tmspr: CFLAGS += -pthread include ../../lib.mk diff --git a/tools/testing/selftests/powerpc/tm/tm-exec.c b/tools/testing/selftests/powerpc/tm/tm-exec.c new file mode 100644 index 000000000000..3d27fa0ece04 --- /dev/null +++ b/tools/testing/selftests/powerpc/tm/tm-exec.c @@ -0,0 +1,70 @@ +/* + * Copyright 2016, Cyril Bur, IBM Corp. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Syscalls can be performed provided the transactions are suspended. + * The exec() class of syscall is unique as a new process is loaded. + * + * It makes little sense for after an exec() call for the previously + * suspended transaction to still exist. + */ + +#define _GNU_SOURCE +#include <errno.h> +#include <inttypes.h> +#include <libgen.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "utils.h" +#include "tm.h" + +static char *path; + +static int test_exec(void) +{ + SKIP_IF(!have_htm()); + + asm __volatile__( + "tbegin.;" + "blt 1f; " + "tsuspend.;" + "1: ;" + : : : "memory"); + + execl(path, "tm-exec", "--child", NULL); + + /* Shouldn't get here */ + perror("execl() failed"); + return 1; +} + +static int after_exec(void) +{ + asm __volatile__( + "tbegin.;" + "blt 1f;" + "tsuspend.;" + "1: ;" + : : : "memory"); + + FAIL_IF(failure_is_nesting()); + return 0; +} + +int main(int argc, char *argv[]) +{ + path = argv[0]; + + if (argc > 1 && strcmp(argv[1], "--child") == 0) + return after_exec(); + + return test_harness(test_exec, "tm_exec"); +} diff --git a/tools/testing/selftests/powerpc/tm/tm-syscall.c b/tools/testing/selftests/powerpc/tm/tm-syscall.c index 60560cb20e38..454b965a2db3 100644 --- a/tools/testing/selftests/powerpc/tm/tm-syscall.c +++ b/tools/testing/selftests/powerpc/tm/tm-syscall.c @@ -27,21 +27,6 @@ unsigned retries = 0; #define TEST_DURATION 10 /* seconds */ #define TM_RETRIES 100 -long failure_code(void) -{ - return __builtin_get_texasru() >> 24; -} - -bool failure_is_persistent(void) -{ - return (failure_code() & TM_CAUSE_PERSISTENT) == TM_CAUSE_PERSISTENT; -} - -bool failure_is_syscall(void) -{ - return (failure_code() & TM_CAUSE_SYSCALL) == TM_CAUSE_SYSCALL; -} - pid_t getppid_tm(bool suspend) { int i; diff --git a/tools/testing/selftests/powerpc/tm/tm.h b/tools/testing/selftests/powerpc/tm/tm.h index 24144b25772c..60318bad7d7a 100644 --- a/tools/testing/selftests/powerpc/tm/tm.h +++ b/tools/testing/selftests/powerpc/tm/tm.h @@ -6,8 +6,9 @@ #ifndef _SELFTESTS_POWERPC_TM_TM_H #define _SELFTESTS_POWERPC_TM_TM_H -#include <stdbool.h> +#include <asm/tm.h> #include <asm/cputable.h> +#include <stdbool.h> #include "../utils.h" @@ -31,4 +32,24 @@ static inline bool have_htm_nosc(void) #endif } +static inline long failure_code(void) +{ + return __builtin_get_texasru() >> 24; +} + +static inline bool failure_is_persistent(void) +{ + return (failure_code() & TM_CAUSE_PERSISTENT) == TM_CAUSE_PERSISTENT; +} + +static inline bool failure_is_syscall(void) +{ + return (failure_code() & TM_CAUSE_SYSCALL) == TM_CAUSE_SYSCALL; +} + +static inline bool failure_is_nesting(void) +{ + return (__builtin_get_texasru() & 0x400000); +} + #endif /* _SELFTESTS_POWERPC_TM_TM_H */ diff --git a/tools/testing/selftests/powerpc/utils.h b/tools/testing/selftests/powerpc/utils.h index a985cfaa535e..fbd33e52ef8f 100644 --- a/tools/testing/selftests/powerpc/utils.h +++ b/tools/testing/selftests/powerpc/utils.h @@ -27,6 +27,11 @@ int test_harness(int (test_function)(void), char *name); extern void *get_auxv_entry(int type); int pick_online_cpu(void); +static inline bool have_hwcap(unsigned long ftr) +{ + return ((unsigned long)get_auxv_entry(AT_HWCAP) & ftr) == ftr; +} + static inline bool have_hwcap2(unsigned long ftr2) { return ((unsigned long)get_auxv_entry(AT_HWCAP2) & ftr2) == ftr2; |