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2008-10-16Merge branch 'kvm-updates/2.6.28' of ↵Linus Torvalds10-57/+246
git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (134 commits) KVM: ia64: Add intel iommu support for guests. KVM: ia64: add directed mmio range support for kvm guests KVM: ia64: Make pmt table be able to hold physical mmio entries. KVM: Move irqchip_in_kernel() from ioapic.h to irq.h KVM: Separate irq ack notification out of arch/x86/kvm/irq.c KVM: Change is_mmio_pfn to kvm_is_mmio_pfn, and make it common for all archs KVM: Move device assignment logic to common code KVM: Device Assignment: Move vtd.c from arch/x86/kvm/ to virt/kvm/ KVM: VMX: enable invlpg exiting if EPT is disabled KVM: x86: Silence various LAPIC-related host kernel messages KVM: Device Assignment: Map mmio pages into VT-d page table KVM: PIC: enhance IPI avoidance KVM: MMU: add "oos_shadow" parameter to disable oos KVM: MMU: speed up mmu_unsync_walk KVM: MMU: out of sync shadow core KVM: MMU: mmu_convert_notrap helper KVM: MMU: awareness of new kvm_mmu_zap_page behaviour KVM: MMU: mmu_parent_walk KVM: x86: trap invlpg KVM: MMU: sync roots on mmu reload ...
2008-10-16Merge branch 'core-v28-for-linus' of ↵Linus Torvalds4-18/+9
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: do_generic_file_read: s/EINTR/EIO/ if lock_page_killable() fails softirq, warning fix: correct a format to avoid a warning softirqs, debug: preemption check x86, pci-hotplug, calgary / rio: fix EBDA ioremap() IO resources, x86: ioremap sanity check to catch mapping requests exceeding, fix IO resources, x86: ioremap sanity check to catch mapping requests exceeding the BAR sizes softlockup: Documentation/sysctl/kernel.txt: fix softlockup_thresh description dmi scan: warn about too early calls to dmi_check_system() generic: redefine resource_size_t as phys_addr_t generic: make PFN_PHYS explicitly return phys_addr_t generic: add phys_addr_t for holding physical addresses softirq: allocate less vectors IO resources: fix/remove printk printk: robustify printk, update comment printk: robustify printk, fix #2 printk: robustify printk, fix printk: robustify printk Fixed up conflicts in: arch/powerpc/include/asm/types.h arch/powerpc/platforms/Kconfig.cputype manually.
2008-10-16Merge branch 'personality' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds1-2/+2
* 'personality' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITY
2008-10-16powerpc: use iommu_num_pages function in IOMMU codeJoerg Roedel1-16/+7
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16powerpc: rename iommu_num_pages function to iommu_nr_pagesJoerg Roedel1-6/+6
This is a preparation patch for introducing a generic iommu_num_pages function. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16compat: generic compat get/settimeofdayChristoph Hellwig1-63/+0
Nothing arch specific in get/settimeofday. The details of the timeval conversion varied a little from arch to arch, but all with the same results. Also add an extern declaration for sys_tz to linux/time.h because externs in .c files are fowned upon. I'll kill the externs in various other files in a sparate patch. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: David S. Miller <davem@davemloft.net> [ sparc bits ] Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Acked-by: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16compat: move cp_compat_stat to common codeChristoph Hellwig1-36/+0
struct stat / compat_stat is the same on all architectures, so cp_compat_stat should be, too. Turns out it is, except that various architectures have slightly and some high2lowuid/high2lowgid or the direct assignment instead of the SET_UID/SET_GID that expands to the correct one anyway. This patch replaces the arch-specific cp_compat_stat implementations with a common one based on the x86-64 one. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: David S. Miller <davem@davemloft.net> [ sparc bits ] Acked-by: Kyle McMartin <kyle@mcmartin.ca> [ parisc bits ] Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16[PATCH] remove unused ibcs2/PER_SVR4 in SET_PERSONALITYMartin Schwidefsky1-2/+2
The SET_PERSONALITY macro is always called with a second argument of 0. Remove the ibcs argument and the various tests to set the PER_SVR4 personality. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-10-15KVM: switch to get_user_pages_fastMarcelo Tosatti1-2/+0
Convert gfn_to_pfn to use get_user_pages_fast, which can do lockless pagetable lookups on x86. Kernel compilation on 4-way guest is 3.7% faster on VMX. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2008-10-15Merge branches 'core/softlockup', 'core/softirq', 'core/resources', ↵Ingo Molnar4-18/+9
'core/printk' and 'core/misc' into core-v28-for-linus
2008-10-15KVM: ppc: kvmppc_44x_shadow_release() does not require mmap_sem to be lockedHollis Blanchard1-7/+1
And it gets in the way of get_user_pages_fast(). Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-10-15KVM: powerpc: Map guest userspace with TID=0 mappingsHollis Blanchard7-19/+41
When we use TID=N userspace mappings, we must ensure that kernel mappings have been destroyed when entering userspace. Using TID=1/TID=0 for kernel/user mappings and running userspace with PID=0 means that userspace can't access the kernel mappings, but the kernel can directly access userspace. The net is that we don't need to flush the TLB on privilege switches, but we do on guest context switches (which are far more infrequent). Guest boot time performance improvement: about 30%. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-10-15KVM: ppc: Write only modified shadow entries into the TLB on exitHollis Blanchard6-18/+64
Track which TLB entries need to be written, instead of overwriting everything below the high water mark. Typically only a single guest TLB entry will be modified in a single exit. Guest boot time performance improvement: about 15%. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-10-15KVM: ppc: Stop saving host TLB stateHollis Blanchard3-17/+3
We're saving the host TLB state to memory on every exit, but never using it. Originally I had thought that we'd want to restore host TLB for heavyweight exits, but that could actually hurt when context switching to an unrelated host process (i.e. not qemu). Since this decreases the performance penalty of all exits, this patch improves guest boot time by about 15%. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-10-15KVM: ppc: guest breakpoint supportHollis Blanchard4-2/+113
Allow host userspace to program hardware debug registers to set breakpoints inside guests. Signed-off-by: Jerone Young <jyoung5@us.ibm.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-10-15KVM: ppc: trace powerpc instruction emulationChristian Ehrhardt1-0/+2
This patch adds a trace point for the instruction emulation on embedded powerpc utilizing the KVM_TRACE interface. Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-10-15KVM: ppc: adds trace points for ppc tlb activityJerone Young2-1/+18
This patch adds trace points to track powerpc TLB activities using the KVM_TRACE infrastructure. Signed-off-by: Jerone Young <jyoung5@us.ibm.com> Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-10-15KVM: ppc: enable KVM_TRACE building for powerpcJerone Young2-2/+15
This patch enables KVM_TRACE to build for PowerPC arch. This means just adding sections to Kconfig and Makefile. Signed-off-by: Jerone Young <jyoung5@us.ibm.com> Signed-off-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-10-15Merge commit 'origin'Benjamin Herrenschmidt23-181/+98
Manual fixup of conflicts on: arch/powerpc/include/asm/dcr-regs.h drivers/net/ibm_newemac/core.h
2008-10-15powerpc: Fix CHRP PCI config access for indirect_pciBenjamin Herrenschmidt1-1/+1
Recently, indirect_pci was changed to test if the bus number requested is the one hanging straight off the PHB, then it substitutes the bus number with another one contained in a new "self_busno" field of the pci_controller structure. However, this breaks CHRP which didn't initialize this new field, and which relies on having the right bus number passed to the hardware. This fixes it by initializing this variable properly for all CHRP bridges Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-15powerpc/chrp: Fix detection of Python PCI host bridge on IBM CHRPsBenjamin Herrenschmidt1-1/+1
The detection of the IBM "Python" PCI host bridge on IBM CHRP machines such as old RS6000 was broken when we changed of_device_is_compatible() from strncasecmp to strcasecmp (dropped the "n" variant) due to the way IBM encodes the chip version. We fix that by instead doing a match on the model property like we do for others bridges in that file. It should be good enough for those machines. If yours is still broken, let me know. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-15powerpc: Fix 32-bit SMP boot on CHRPBenjamin Herrenschmidt1-0/+6
prom_init was changed to take a new argument, the address where the kernel is loaded, which is now used to copy the SMP spin loop down before use. However, only head_64.S was adapted to pass this new value, not head_32.S, thus breaking SMP boot on 32-bit SMP CHRP machines. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-15powerpc: Fix link errors on 32-bit machines using legacy DMABenjamin Herrenschmidt1-0/+6
The new merged DMA code will try to access isa_bridge_pcidev when trying to DMA to/from legacy devices. This is however only defined on 64-bit. Fixes this for now by adding the variable, even if it stays NULL. In the long run, we'll make isa-bridge.c common to 32 and 64-bit. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-15powerpc/pci: Improve detection of unassigned bridge resourcesBenjamin Herrenschmidt1-47/+116
When the powerpc PCI layer is not configured to re-assign everything, it currently fails to detect that a PCI to PCI bridge has been left unassigned by the firmware and tries to allocate resource for the default window values in the bridge (0...X) (with the notable exception of a hack we have in there that detects some Apple firmware unassigned bridge resources). This results in resource allocation failures, which are generally fixed up later on but it causes scary warnings in the logs and we have seen the fixup code fall over in some circumstances (a different issue to fix as well). This code improves that by providing a more complete & useful function to intuit that a bridge was left unassigned by the firmware, and thus force a full re-allocation by the PCI code without trying to allocate the existing useless resources first. The algorithm we use basically considers unassigned a window that starts at 0 (PCI address) if the corresponding address space enable bit is not set. In addition, for memory space, it considers such a resource unassigned also if the host bridge isn't configured to forward cycles to address 0 (ie, the resource basically overlaps main memory). This fixes a range of problems with things like Bare-Metal support on pSeries machines, or attempt to use partial firmware PCI setup. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-14powerpc: Get USE_STRICT_MM_TYPECHECKS working againDavid Gibson6-22/+24
The typesafe version of the powerpc pagetable handling (with USE_STRICT_MM_TYPECHECKS defined) has bitrotted again. This patch makes a bunch of small fixes to get it back to building status. It's still not enabled by default as gcc still generates worse code with it for some reason. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-14powerpc: Reflect the used arguments in machine_init() prototypeSebastian Andrzej Siewior1-1/+1
The "phys" argument to machine_init() isn't used and isn't likely to ever be so let's remove it. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-14powerpc: Fix DMA offset for non-coherent DMABenjamin Herrenschmidt2-3/+7
After Becky's work we can almost have different DMA offsets between on-chip devices and PCI. Almost because there's a problem with the non-coherent DMA code that basically ignores the programmed offset to use the global one for everything. This fixes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-14Merge commit 'kumar/kumar-next'Benjamin Herrenschmidt60-166/+614
2008-10-14Merge commit 'gcl/gcl-next'Benjamin Herrenschmidt2-6/+12
2008-10-13vfs: Use const for kernel parser tableSteven Whitehouse1-1/+1
This is a much better version of a previous patch to make the parser tables constant. Rather than changing the typedef, we put the "const" in all the various places where its required, allowing the __initconst exception for nfsroot which was the cause of the previous trouble. This was posted for review some time ago and I believe its been in -mm since then. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Cc: Alexander Viro <aviro@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-13powerpc: fix fsl_upm nand driver modular buildAnton Vorontsov2-48/+53
The fsl_upm nand driver fails to build because fsl_lbc_lock isn't exported, the lock is needed by the inlined fsl_upm_run_pattern() function: ERROR: "fsl_lbc_lock" [drivers/mtd/nand/fsl_upm.ko] undefined! Dave Jones purposed to export the lock, but it is better to just uninline the fsl_upm_run_pattern(). When uninlined we also no longer need the exported fsl_lbc_regs, and both fsl_lbc_lock and fsl_lbc_regs could be marked static. While at it, also add some missing includes that we should have included explicitly. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13Merge branch 'master' of ↵David Woodhouse25-116/+158
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: include/asm-x86/statfs.h
2008-10-13powerpc/83xx: add NAND support for the MPC8360E-RDK boardsAnton Vorontsov1-0/+12
The StMicro NAND chip (512Mbit, 64MB) is connected to the local bus, the first local bus' user-programmable machine is configured by the firmware to work with NAND chips. QE GPIO pin is used to poll the NAND's Ready-Not-Busy signal. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc: FPGA support for GE Fanuc SBC610Martyn Welch2-0/+44
Support for the SBC610 VPX Single Board Computer from GE Fanuc (PowerPC MPC8641D). This patch adds support for the registers held in the devices main FPGA, exposing extra information about the revision of the board through cpuinfo. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc: reserve two DMA channels for audio in MPC8610 HPCD device treeTimur Tabi1-2/+2
The Freescale Elo DMA driver binds to all DMA channels in the device tree that are compatible with "fsl,eloplus-dma-channel". This conflicts with the sound drivers for the MPC8610 HPCD. On this board, the SSI uses two DMA channels and therefore those channels are not available for general purpose use. We change the compatible properties for these channels "fsl,ssi-dma-channel". This works because the sound drivers don't actually check the compatible property when it grabs channels. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc: disable CHRP and PMAC support in various defconfigsTimur Tabi21-1/+44
Because CHRP and PMAC are by default enabled, several non-CHRP and non-PMAC PowerPC defconfigs will have these Kconfig options set erroneously. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc/83xx: add DS1374 RTC support for the MPC837xE-MDS boardsAnton Vorontsov3-0/+21
The RTC is sitting on the I2C1 bus at address 0x68. RTC interrupt signal is connected to the IPIC's EXT3 interrupt line. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc: remove support for bootmem-allocated memory for the DIU driverTimur Tabi3-46/+1
Early versions of the Freescale DIU framebuffer driver depended on a bootmem allocation of memory for the video buffer. The need for this feature was removed in commit 6b51d51a, so now we can remove the platform-specific code that allocated that memory. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc: remove non-dependent load fsl_booke PTE_64BITMilton Miller1-4/+0
b38fd42ff46a4a31dced8533e8a6e549693500b6 added false dependencys to order the load of upper and lower halfs of the pte, but only adjusted whitespace instead of deleting the old load in the iside handler, letting the hardware see the non-dependent load. This patch removes the extra load. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc/5121: Add PCI support.John Rigby4-3/+16
Uses mpc83xx_add_bridge in fsl_pci.c Adds second register tuple to pci node register property as done for 83xx device trees in a previous patch. Signed-off-by: John Rigby <jrigby@freescale.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc: 83xx: pci: Remove need for get_immrbase from mpc83xx_add_bridge.John Rigby17-37/+71
Modify mpc83xx_add_bridge to get config space register base address from the device tree instead of immr + hardcoded offset. 83xx pci nodes have this change: register properties now contain two address length tuples: First is the pci bridge register base, this has always been there. Second is the config base, this is new. This is documented in dts-bindings/fsl/83xx-512x-pci.txt The changes accomplish these things: mpc83xx_add_bridge no longer needs to call get_immrbase it uses hard coded addresses if the second register value is missing Signed-off-by: John Rigby <jrigby@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc/fsl: Hide MPC5121 pci bridge.John Rigby1-2/+3
The class of the MPC5121 pci host bridge is PCI_CLASS_BRIDGE_OTHER while other freescale host bridges have class set to PCI_CLASS_PROCESSOR_POWERPC. This patch makes fixup_hide_host_resource_fsl match PCI_CLASS_BRIDGE_OTHER in addition to PCI_CLASS_PROCESSOR_POWERPC. Signed-off-by: John Rigby <jrigby@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc/83xx: don't probe broken PCI on mpc837x_mds boardsAnton Vorontsov1-1/+7
In the standalone setup the board's CPLD disables the PCI internal arbiter, thus any access to the PCI bus will hang the board. The common way to disable particular devices in the device tree is to put the "status" property with any value other than "ok" or "okay" into the device node we want to disable. So, when there is no PCI arbiter on the bus the u-boot adds status = "broken (no arbiter)" property into the PCI controller's node, and so marks the PCI controller as unavailable. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc/QE: move QE_GPIO Kconfig symbol into the platforms/KconfigAnton Vorontsov2-9/+9
Specifying user-selectable option in the qe_lib/Kconfig was a bad idea because the qe_lib/Kconfig is included into the top level Kconfig, and thus the QE_GPIO option appears at the top level menu. This patch effectively moves the QE_GPIO option under the platform menu instead. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc: make Freescale QE support a selectable Kconfig optionTimur Tabi3-7/+2
Modify the Kconfig so that Freescale QUICC Engine (QE) support is a selectable option, thereby allowing users to compile kernels without any QE support. The drawback is that QE support is now disabled by default on platforms that have a QE, and so a defconfig is needed to enable QE and QE devices (like UCC GETH). Fortunately, all the current relevant defconfigs do that already. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc: GE Fanuc's FPGA based PIC controller on the SBC610Martyn Welch5-6/+327
Support for the SBC610 VPX Single Board Computer from GE Fanuc (PowerPC MPC8641D). A number of MPC8641D based route interrupts for on-board interrupts through a FPGA based interrupt controller, which is chained with the MPC8641D's mpic. This patch provides a basic driver to allow basic routing of interrupts to the mpic. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc/85xx: Wire up RTC interrupt on MPC8536DSKumar Gala1-0/+2
Add interrupt info to the MPC8536DS .dts for the RTC Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-10-13powerpc/smp: No need to set_need_resched when getting a resched IPIMilton Miller1-2/+1
The comment in the code was asking "Do we have to do this?", and according to x86 and s390 the answer is no, the scheduler will do it before calling the arch hook. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-13powerpc/xics: Reduce and comment xics IPI use of memory barriersMilton Miller1-4/+1
A single full sync (mb()) is requrired to order the mmio to the qirr reg with the set or clear of the message word. However, test_and_clear_bit has the effect of smp_mb() and we are not doing any other io from here, so we don't need a mb per bit processed. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-10-13powerpc/xics: Make printk format strings fit on one lineMilton Miller1-18/+18
Several printks were broken at word boundaries for line length. Some even referred to old function names. Using __func__ and changing the text slightly for the format allows these printk formats to fit on one line. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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