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2024-09-01xz: remove XZ_EXTERN and extern from functionsLasse Collin1-3/+0
XZ_EXTERN was used to make internal functions static in the preboot code. However, in other decompressors this hasn't been done. On x86-64, this makes no difference to the kernel image size. Omit XZ_EXTERN and let some of the internal functions be extern in the preboot code. Omitting XZ_EXTERN from include/linux/xz.h fixes warnings in "make htmldocs" and makes the intradocument links to xz_dec functions work in Documentation/staging/xz.rst. The alternative would have been to add "XZ_EXTERN" to c_id_attributes in Documentation/conf.py but omitting XZ_EXTERN seemed cleaner. Link: https://lore.kernel.org/lkml/20240723205437.3c0664b0@kaneli/ Link: https://lkml.kernel.org/r/20240724110544.16430-1-lasse.collin@tukaani.org Signed-off-by: Lasse Collin <lasse.collin@tukaani.org> Tested-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Cc: Jonathan Corbet <corbet@lwn.net> Cc: Sam James <sam@gentoo.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Emil Renner Berthing <emil.renner.berthing@canonical.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Joel Stanley <joel@jms.id.au> Cc: Jubin Zhong <zhongjubin@huawei.com> Cc: Jules Maselbas <jmaselbas@zdiv.net> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Rui Li <me@lirui.org> Cc: Simon Glass <sjg@chromium.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-07-12powerpc: Remove 40x leftoversChristophe Leroy1-1/+1
Remove stale references to 40x. Fixes: e939da89d024 ("powerpc: Remove 40x from Kconfig and defconfig") Fixes: 548f5244f106 ("powerpc/40x: Remove EP405") Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/ab30ae302783d8617d407864b92db1b926ab5ab9.1720694914.git.christophe.leroy@csgroup.eu
2024-06-28powerpc/boot: Remove all 40x platforms from bootChristophe Leroy17-2875/+1
Remove 40x platforms from the boot directory. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240628121201.130802-2-mpe@ellerman.id.au
2024-05-18Merge tag 'kbuild-v6.10' of ↵Linus Torvalds3-7/+5
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - Avoid 'constexpr', which is a keyword in C23 - Allow 'dtbs_check' and 'dt_compatible_check' run independently of 'dt_binding_check' - Fix weak references to avoid GOT entries in position-independent code generation - Convert the last use of 'optional' property in arch/sh/Kconfig - Remove support for the 'optional' property in Kconfig - Remove support for Clang's ThinLTO caching, which does not work with the .incbin directive - Change the semantics of $(src) so it always points to the source directory, which fixes Makefile inconsistencies between upstream and downstream - Fix 'make tar-pkg' for RISC-V to produce a consistent package - Provide reasonable default coverage for objtool, sanitizers, and profilers - Remove redundant OBJECT_FILES_NON_STANDARD, KASAN_SANITIZE, etc. - Remove the last use of tristate choice in drivers/rapidio/Kconfig - Various cleanups and fixes in Kconfig * tag 'kbuild-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (46 commits) kconfig: use sym_get_choice_menu() in sym_check_prop() rapidio: remove choice for enumeration kconfig: lxdialog: remove initialization with A_NORMAL kconfig: m/nconf: merge two item_add_str() calls kconfig: m/nconf: remove dead code to display value of bool choice kconfig: m/nconf: remove dead code to display children of choice members kconfig: gconf: show checkbox for choice correctly kbuild: use GCOV_PROFILE and KCSAN_SANITIZE in scripts/Makefile.modfinal Makefile: remove redundant tool coverage variables kbuild: provide reasonable defaults for tool coverage modules: Drop the .export_symbol section from the final modules kconfig: use menu_list_for_each_sym() in sym_check_choice_deps() kconfig: use sym_get_choice_menu() in conf_write_defconfig() kconfig: add sym_get_choice_menu() helper kconfig: turn defaults and additional prompt for choice members into error kconfig: turn missing prompt for choice members into error kconfig: turn conf_choice() into void function kconfig: use linked list in sym_set_changed() kconfig: gconf: use MENU_CHANGED instead of SYMBOL_CHANGED kconfig: gconf: remove debug code ...
2024-05-10kbuild: use $(src) instead of $(srctree)/$(src) for source directoryMasahiro Yamada3-7/+5
Kbuild conventionally uses $(obj)/ for generated files, and $(src)/ for checked-in source files. It is merely a convention without any functional difference. In fact, $(obj) and $(src) are exactly the same, as defined in scripts/Makefile.build: src := $(obj) When the kernel is built in a separate output directory, $(src) does not accurately reflect the source directory location. While Kbuild resolves this discrepancy by specifying VPATH=$(srctree) to search for source files, it does not cover all cases. For example, when adding a header search path for local headers, -I$(srctree)/$(src) is typically passed to the compiler. This introduces inconsistency between upstream and downstream Makefiles because $(src) is used instead of $(srctree)/$(src) for the latter. To address this inconsistency, this commit changes the semantics of $(src) so that it always points to the directory in the source tree. Going forward, the variables used in Makefiles will have the following meanings: $(obj) - directory in the object tree $(src) - directory in the source tree (changed by this commit) $(objtree) - the top of the kernel object tree $(srctree) - the top of the kernel source tree Consequently, $(srctree)/$(src) in upstream Makefiles need to be replaced with $(src). Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
2024-05-08powerpc: Fix typosBjorn Helgaas4-5/+5
Fix typos, most reported by "codespell arch/powerpc". Only touches comments, no code changes. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240103231605.1801364-8-helgaas@kernel.org
2024-05-07powerpc: dts: fsl: rename ifc node name to be memory-controllerLi Yang5-5/+5
Update the node name to be align with binding document. Signed-off-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240119203911.3143928-4-Frank.Li@nxp.com
2024-05-07powerpc: dts: mpc85xx: remove "simple-bus" compatible from ifc nodeLi Yang9-9/+9
Update dts to match dts binding document. Signed-off-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240119203911.3143928-3-Frank.Li@nxp.com
2024-05-07powerpc: dts: p1010rdb: fix INTx interrupt issue on P1010RDB-PBXiaowei Bao3-16/+32
Due to the INTA is shared with the active-low PHY2 interrupt on P1010RDB-PA board, so configure P1010RDB-PA's INTA with polarity as active-low, the P1010RDB-PB board is used separately, so configure P1010RDB-PB's INTA with polarity as active-high. The INTX in P1010RDB-PB do not work because of the pcie@0 node fixup will be overwrited by p1010si-post.dtsi file, so we move the pcie@0 node fixup to p1010rdb-pb.dts and p1010rdb-pb_36b.dts. Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com> Signed-off-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240119203911.3143928-2-Frank.Li@nxp.com
2024-05-07powerpc: dts: add power management nodes to FSL chipsRan Wang14-12/+83
Enable Power Management feature on device tree, including MPC8536, MPC8544, MPC8548, MPC8572, P1010, P1020, P1021, P1022, P2020, P2041, P3041, T104X, T1024. Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com> Signed-off-by: Ran Wang <ran.wang_1@nxp.com> Signed-off-by: Frank Li <Frank.Li@nxp.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240119203911.3143928-1-Frank.Li@nxp.com
2024-05-07powerpc: boot: Fix kernel-doc param for partial_decompressYang Li1-1/+1
Fix the kernel-doc annotation for the 'skip' parameter in the partial_decompress() function by adding a missing underscore and colon. Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Reviewed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240408083916.123369-1-yang.lee@linux.alibaba.com
2024-03-21Merge tag 'usb-6.9-rc1' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / Thunderbolt updates from Greg KH: "Here is the big set of USB and Thunderbolt changes for 6.9-rc1. Lots of tiny changes and forward progress to support new hardware and better support for existing devices. Included in here are: - Thunderbolt (i.e. USB4) updates for newer hardware and uses as more people start to use the hardware - default USB authentication mode Kconfig and documentation update to make it more obvious what is going on - USB typec updates and enhancements - usual dwc3 driver updates - usual xhci driver updates - function USB (i.e. gadget) driver updates and additions - new device ids for lots of drivers - loads of other small updates, full details in the shortlog All of these, including a "last minute regression fix" have been in linux-next with no reported issues" * tag 'usb-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (185 commits) usb: usb-acpi: Fix oops due to freeing uninitialized pld pointer usb: gadget: net2272: Use irqflags in the call to net2272_probe_fin usb: gadget: tegra-xudc: Fix USB3 PHY retrieval logic phy: tegra: xusb: Add API to retrieve the port number of phy USB: gadget: pxa27x_udc: Remove unused of_gpio.h usb: gadget/snps_udc_plat: Remove unused of_gpio.h usb: ohci-pxa27x: Remove unused of_gpio.h usb: sl811-hcd: only defined function checkdone if QUIRK2 is defined usb: Clarify expected behavior of dev_bin_attrs_are_visible() xhci: Allow RPM on the USB controller (1022:43f7) by default usb: isp1760: remove SLAB_MEM_SPREAD flag usage usb: misc: onboard_hub: use pointer consistently in the probe function usb: gadget: fsl: Increase size of name buffer for endpoints usb: gadget: fsl: Add of device table to enable module autoloading usb: typec: tcpm: add support to set tcpc connector orientatition usb: typec: tcpci: add generic tcpci fallback compatible dt-bindings: usb: typec-tcpci: add tcpci fallback binding usb: gadget: fsl-udc: Replace custom log wrappers by dev_{err,warn,dbg,vdbg} usb: core: Set connect_type of ports based on DT node dt-bindings: usb: Add downstream facing ports to realtek binding ...
2024-03-03powerpc/boot: Only free if realloc() succeedsMichael Ellerman1-2/+3
simple_realloc() frees the original buffer (ptr) even if the reallocation failed. Fix it to behave like standard realloc() and only free the original buffer if the reallocation succeeded. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20240229115149.749264-1-mpe@ellerman.id.au
2024-03-03powerpc/boot: Handle allocation failure in simple_realloc()Li zeming1-1/+3
simple_malloc() will return NULL when there is not enough memory left. Check pointer 'new' before using it to copy the old data. Signed-off-by: Li zeming <zeming@nfschina.com> [mpe: Reword subject, use change log from Christophe] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20221219021816.3012-1-zeming@nfschina.com
2024-03-02powerpc: dts: akebono: Harmonize EHCI/OHCI DT nodes nameSerge Semin1-3/+3
In accordance with the Generic EHCI/OHCI bindings the corresponding node name is suppose to comply with the Generic USB HCD DT schema, which requires the USB nodes to have the name acceptable by the regexp: "^usb(@.*)?" . Make sure the "generic-ehci" and "generic-ohci"-compatible nodes are correctly named. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20240222174456.25903-2-Sergey.Semin@baikalelectronics.ru Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-12-19powerpc/fsl: Fix fsl,tmu-calibration to match the schemaDavid Heidelberg2-74/+76
fsl,tmu-calibration is defined as a u32 matrix in Documentation/devicetree/bindings/thermal/qoriq-thermal.yaml. Use matching property syntax. No functional changes. Signed-off-by: David Heidelberg <david@ixit.cz> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20231212184515.82886-2-david@ixit.cz
2023-10-20powerpc/boot: Add version to install filenamesNick Child1-6/+10
Rather than replacing the versionless vmlinux and System.map files, copy to files with the version info appended. Additionally, since executing the script is a last resort option, inform the user about the missing `installkernel` command and the location of the installation. This work is adapted from `arch/s390/boot/install.sh`, and also matches the behaviour of arm, arm64 and riscv. Signed-off-by: Nick Child <nnac123@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230314164442.124929-1-nnac123@linux.ibm.com
2023-08-25powerpc: dts: add missing space before {Krzysztof Kozlowski8-18/+18
Add missing whitespace between node name/label and opening {. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230705145743.292855-1-krzysztof.kozlowski@linaro.org
2023-07-03powerpc: dts: turris1x.dts: Fix PCIe MEM size for pci2 nodePali Rohár1-3/+3
Freescale PCIe controllers on their PCIe Root Ports do not have any mappable PCI BAR allocate from PCIe MEM. Information about 1MB window on BAR0 of PCIe Root Port was misleading because Freescale PCIe controllers have at BAR0 position different register PEXCSRBAR, and kernel correctly skipts BAR0 for these Freescale PCIe Root Ports. So update comment about P2020 PCIe Root Port and decrease PCIe MEM size required for PCIe controller (pci2 node) on which is on-board xHCI controller. lspci confirms that on P2020 PCIe Root Port is no PCI BAR and /proc/iomem sees that only c0000000-c000ffff and c0010000-c0011fff ranges are used. Fixes: 54c15ec3b738 ("powerpc: dts: Add DTS file for CZ.NIC Turris 1.x routers") Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230505172818.18416-1-pali@kernel.org
2023-06-21powerpc: drop MPC85xx_CDS platform supportPaul Gortmaker6-1219/+0
The MPC8541/8548/8555 Configurable Development System (CDS) were the vehicle used to provide evaluation of the 1st e500-v2 CPUs around 2007. Similar to the earlier MPC83xx-MDS systems we removed, the "brains" exist on a PCI-X card, but additional connectors exist to the right of the PCI-X slot, two structural metal pins are used to provide stability in a vertical ATX mounting, and the CPU is now on a daughter-card vs. a clamped down BGA. Given the extra complexity and risk of connector damage, the 8548CDS I had access to came pre-assembled in a basic white Antec case common for that era, and I'm inclined to assume that was the default. Power was typical "Pentium4" 2005 ATX - the main 20 pin connector went to the PCI ATX form factor backplane, and the 4 pin black/yellow went to the CPU card. Like previous evaluation boards, they attempted to provide break-out connectors for as many features as possible, and that made for a fairly complex looking system. In any case, these are over 15 years old, and fairly complex systems, originally made for a small group of industry related people, and made for use where quiet fan operation wasn't important. Given that, it makes sense to remove support from them in 2023. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230620043300.197546-3-paul.gortmaker@windriver.com
2023-06-21powerpc: drop MPC8540_ADS and MPC8560_ADS platform supportPaul Gortmaker3-745/+0
Based on the revision history in the manual(s), these e500-v1 platforms were first available around 2002. Like a lot of evaluation boards, they attempted to provide break-out connectors for all possible features, and that combined with four PCI-X slots (and the age/era) meant for a considerably large board. As I recall it, from a Linux point of view, the biggest difference between 8540 and 8560 was in the UART implementation, and that is reflected in a diff of the defconfigs. In any case, these are over 20 years old, and by today's standards only have a small amount of DDR1 memory, and were not widely available. Given that, it makes sense to remove support from them in 2023. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230620043300.197546-2-paul.gortmaker@windriver.com
2023-06-14powerpc/build: Remove -pipe from compilation flagsNicholas Piggin1-2/+2
x86 removed -pipe in commit 437e88ab8f9e2 ("x86/build: Remove -pipe from KBUILD_CFLAGS") and the newer arm64 and riscv seem to have never used it, so that seems to be the way the world's going. Compile performance building defconfig on a POWER10 PowerNV system was in the noise after 10 builds each. No point in adding options unless they help something, so remove it. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230606064830.184083-1-npiggin@gmail.com
2023-06-14powerpc/boot: Clean up Makefile after cflags and asflags separationNicholas Piggin1-14/+13
Tidy pass over boot Makefile. Move variables together where possible. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230606064657.183969-5-npiggin@gmail.com
2023-06-14powerpc/boot: Separate BOOTCFLAGS from BOOTASFLAGSNicholas Piggin1-1/+1
BOOTCFLAGS no longer contains anything that BOOTASFLAGS needs (except -pipe). Separate them to avoid fragility with cross-contamination of flags which has caused several build problems. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Link: https://lore.kernel.org/lkml/CAHk-=whyWUdJDeOBN1hRWYSkQkvzYiQ5RbSW5rJjExgnbSNX9Q@mail.gmail.com/ Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230606064657.183969-4-npiggin@gmail.com
2023-06-14powerpc/boot: Separate CPP flags from BOOTCFLAGSNicholas Piggin1-7/+7
Add BOOTCPPFLAGS variable for the CPP options required by C and AS. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230606064657.183969-3-npiggin@gmail.com
2023-06-14powerpc/boot: Separate target flags from BOOTCFLAGSNicholas Piggin1-19/+22
Add BOOTTARGETFLAGS variable with target / ABI options common to CFLAGS and AFLAGS. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230606064657.183969-2-npiggin@gmail.com
2023-05-12powerpc/boot: Disable power10 features after BOOTAFLAGS assignmentNathan Chancellor1-2/+4
When building the boot wrapper assembly files with clang after commit 648a1783fe25 ("powerpc/boot: Fix boot wrapper code generation with CONFIG_POWER10_CPU"), the following warnings appear for each file built: '-prefixed' is not a recognized feature for this target (ignoring feature) '-pcrel' is not a recognized feature for this target (ignoring feature) While it is questionable whether or not LLVM should be emitting a warning when passed negative versions of code generation flags when building assembly files (since it does not emit a warning for the altivec and vsx flags), it is easy enough to work around this by just moving the disabled flags to BOOTCFLAGS after the assignment of BOOTAFLAGS, so that they are not added when building assembly files. Do so to silence the warnings. Fixes: 648a1783fe25 ("powerpc/boot: Fix boot wrapper code generation with CONFIG_POWER10_CPU") Link: https://github.com/ClangBuiltLinux/linux/issues/1839 Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230427-remove-power10-args-from-boot-aflags-clang-v1-1-9107f7c943bc@kernel.org
2023-04-20powerpc: drop PowerQUICC II Family ADS platform supportPaul Gortmaker2-244/+0
Based on documentation revision dates, this MPC82xx pq2fads system predates the MPC8272-ADS variant by about a year and only has 1/2 the amount of RAM (32MB) -- largely making it useless with a modern v6.x kernel from today. Similar to the MPC8272-ADS the pq2fads also supported other 82xx CPU variants, had 8MB flash, and like the 8272 ADS platform, was on a fairly large PCB in order to have space for breakout connectors for all features. These 82xx platforms are two decades old, and originally made for a small group of industry related people in order to assist in new OEM board designs. Given that, it makes sense to remove support today. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230224204959.17425-3-paul.gortmaker@windriver.com
2023-04-20powerpc: drop MPC8272_ADS platform supportPaul Gortmaker2-264/+0
The MPC8272-ADS also supported other 82xx CPU variants, had 64MB RAM, 8MB flash, and like the 85xx ADS platforms, was on a fairly large PCB in order to have space for breakout connectors for all the features. These 82xx platforms are two decades old, and originally made for a small group of industry related people in order to assist in new OEM board designs. Given that, it makes sense to remove support today. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230224204959.17425-2-paul.gortmaker@windriver.com
2023-04-20powerpc: drop HPCD/MPC8610 evaluation platform supportPaul Gortmaker1-503/+0
This evaluation platform was essentially a single core 8641 with integrated graphics/display support - in an effort to reduce chip count on kiosk and similar applications. Compared to other evaluation platforms considered for removal in other recent commits, this platform was relatively rare. Unlike all the other 10+ platforms, I couldn't find any documentation on it - just a link to downloading the 2007 era BSP in "LTIB" format as was done back then. With all that in mind, it seems prudent to remove it here in 2023. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> [mpe: Drop stale reference to MPC8610_HPCD in 86xx/Kconfig] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230225201318.3682-4-paul.gortmaker@windriver.com
2023-04-20powerpc: drop HPC-NET/MPC8641D evaluation platform supportPaul Gortmaker2-731/+0
There is no denying that this was an interesting platform in its day. Access to a SMP powerpc platform became a bit more obtainable for folks in the BSP industry in the 2007 era, thanks to this platform. Add to that the move to the black Antec case vs. the generic white 2005 era case of the MPC8548CDS or the retro 1950s 1/2 height horizontal case of the HPC II, and it was pretty interesting to people like myself then. However, like all the other evaluation platforms, the overall system was complex out of necessity, as it tried to showcase all possible features and use-cases. That included an AMP option, where you could run two bootloaders and two kernels over two serial consoles. Peripheral sharing got a bit more tricky when you got to the hard disk and similar. In any case we still have the same circumstance. A relatively rare and expensive evaluation platform that is now 15+ years old and not out there in large numbers in the general public. Removal in 2023 just makes sense. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230225201318.3682-3-paul.gortmaker@windriver.com
2023-04-20powerpc: drop HPC II (MPC7448) evaluation platform support.Paul Gortmaker3-237/+1
This was an interesting platform - it was the 1st instance of a respin of earlier 130nm 74xx CPUs on 90nm and systems using MPC7448 were positioned as a rack server platform solution. Given that, the evaluation platform (at least the one I had) was shipped in a horizontal 1/2 height Antec desktop case with retro styling and colours, despite the fact the docs explicitly stated that the HPC II is not a desktop machine (noting it had no gfx or legacy PC I/O support). Historic trivia aside, this was the 1st introduction of the e600 procfam as an evolution from the earlier G4. However even with the claim to being "1st e600" it seems the 2005+ era was turning its attention to multicore support and from my memory this poor guy was quickly overshadowed by the dual core MPC8641D. All that aside, we are once again looking at 15+ year old evaluation platforms that were not widely distributed, so 2023 removal makes sense. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230225201318.3682-2-paul.gortmaker@windriver.com
2023-04-20powerpc: drop MPC832x_MDS platform supportPaul Gortmaker2-437/+0
This final variant in the e300 family of Modular Development System (MDS) in this series was actually aimed at feature reduction - things like floating point and ethernet were removed in order to make for a lower power and lower cost system. Like all the MDS systems, it was meant as a vehicle to get the CPU out early to hardware OEMs so software and board development could take place in parallel. These were made in limited numbers and availability preference was given to partners who were planning to make their own boards. Given that the whole reason for existence was to assist in enabling new board designs [not happening for 10+ years], and that they weren't generally available, and that the hardware wasn't really hobbyist friendly even for retro computing, it makes sense to retire the support for this particular platform. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Li Yang <leoyang.li@nxp.com> [mpe: Drop stale reference to MPC832x_MDS in arch/powerpc/boot/Makefile] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230220115913.25811-5-paul.gortmaker@windriver.com
2023-04-20powerpc: drop MPC837x_MDS platform supportPaul Gortmaker3-1449/+0
This next evolutionary step in the e300 family of Modular Development System (MDS) still has, at its core component, a full length card with a PCI edge. No case. Serial and network connectors were on card, so it could optionally be fitted with plastic stand-offs and run stand-alone off a power brick. This is very similar to the MPC834x_MDS and MPC836x_MDS removed in the prior commits, but with this board variant as yet another evolutionary step. SATA and PCI-e were now available. But overall the form factor and design goals were unchanged. Like all the MDS systems, it was meant as a vehicle to get the CPU out early to hardware OEMs so software and board development could take place in parallel. These were made in limited numbers and availability preference was given to partners who were planning to make their own boards. Given that the whole reason for existence was to assist in enabling new board designs [not happening for 10+ years], and that they weren't generally available, and that the hardware wasn't really hobbyist friendly even for retro computing, it makes sense to retire the support for this particular platform. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230220115913.25811-4-paul.gortmaker@windriver.com
2023-04-20powerpc: drop MPC836x_MDS platform supportPaul Gortmaker2-482/+0
This 2006 era Modular Development System (MDS) has, at its core component, a full length card with a PCI edge. No case. Serial and network connectors were on card, so it could optionally be fitted with plastic stand-offs and run stand-alone off a power brick. This is very similar to the MPC834x_MDS removed in the prior commit, but with this board variant as an evolutionary step. DDR2 was now an option, and the card edge was revised down to PCI-32 as PCI-64 never got traction. But overall the form factor and design goals were unchanged. Like all the MDS systems, it was meant as a vehicle to get the CPU out early to hardware OEMs so software and board development could take place in parallel. To that end, the BGA CPU was held in place with a mechanical spring loaded pressure assembly (vs. solder) so that early rev silicon could be replaced in the field. Not for COTS deployment! These were made in limited numbers and availability preference was given to partners who were planning to make their own boards. Given that the whole reason for existence was to assist in enabling new board designs [not happening for 10+ years], and that they weren't generally available, and that the hardware wasn't really hobbyist friendly even for retro computing, it makes sense to retire the support for this particular platform. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Li Yang <leoyang.li@nxp.com> [mpe: Drop stale reference to MPC836x_MDS in arch/powerpc/boot/Makefile] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230220115913.25811-3-paul.gortmaker@windriver.com
2023-04-20powerpc: drop MPC834x_MDS platform supportPaul Gortmaker2-404/+0
This 2006 era Modular Development System (MDS) has, at its core component, a full length card with a PCI-64 edge. No case. Serial and network connectors were on card, so it could optionally be fitted with plastic stand-offs and run stand-alone off a power brick. Like all the MDS systems, it was meant as a vehicle to get the CPU out early to hardware OEMs so software and board development could take place in parallel. To that end, the BGA CPU was held in place with a mechanical spring loaded pressure assembly (vs. solder) so that early rev silicon could be replaced in the field. Not for COTS deployment! These were made in limited numbers and availability preference was given to partners who were planning to make their own boards, like our WR SBC8349 [since retired in v4.18 (2017, commit 3bc6cf5a86e5)] Given that the whole reason for existence was to assist in enabling new board designs [not happening for 10+ years], and that they weren't generally available, and that the hardware wasn't really hobbyist friendly even for retro computing, it makes sense to retire the support for this platform. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Li Yang <leoyang.li@nxp.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230220115913.25811-2-paul.gortmaker@windriver.com
2023-04-20powerpc: dts: turris1x.dts: Remove "fsl,P2020RDB-PC" compatible stringPali Rohár1-1/+1
"fsl,P2020RDB-PC" compatible string was present in Turris 1.x DTS file just because Linux kernel required it for proper detection of P2020 processor during boot. This was quite a hack as CZ.NIC Turris 1.x is not compatible with Freescale P2020-RDB-PC board. Now when kernel has generic unified support for boards with P2020 processors, there is no need to have this "hack" in turris1x.dts file. So remove incorrect "fsl,P2020RDB-PC" compatible string from turris1x.dts. Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230408140122.25293-14-pali@kernel.org
2023-04-20powerpc/boot: Fix boot wrapper code generation with CONFIG_POWER10_CPUNicholas Piggin1-0/+2
-mcpu=power10 will generate prefixed and pcrel code by default, which we do not support. The general kernel disables these with cflags, but those were missed for the boot wrapper. Fixes: 4b2a9315f20d ("powerpc/64s: POWER10 CPU Kconfig build option") Cc: stable@vger.kernel.org # v6.1+ Reported-by: Danny Tsen <dtsen@linux.ibm.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230407040909.230998-1-npiggin@gmail.com
2023-04-12powerpc/boot: Fix crt0.S current address branch formNicholas Piggin1-2/+2
Use the preferred form of branch-and-link for finding the current address so objtool doesn't think it is an unannotated intra-function call. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230407040924.231023-1-npiggin@gmail.com
2023-03-15powerpc/boot: Only use '-mabi=elfv2' with CONFIG_PPC64_BOOT_WRAPPERNathan Chancellor1-3/+3
When CONFIG_PPC64_ELF_ABI_V2 is enabled with clang through CONFIG_PPC64_BIG_ENDIAN_ELF_ABI_V2, building the powerpc boot wrapper in 32-bit mode (i.e. with CONFIG_PPC64_BOOT_WRAPPER=n) fails with: error: unknown target ABI 'elfv2' The ABI cannot be changed with '-m32'; GCC silently accepts it but clang errors out. Only provide '-mabi=elfv2' when CONFIG_PPC64_BOOT_WRAPPER is enabled, which is the only way '-mabi=elfv2' will be useful. Tested-by: "Erhard F." <erhard_f@mailbox.org> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/20230118-ppc64-elfv2-llvm-v1-1-b9e2ec9da11d@kernel.org
2023-02-28powerpc: dts: t1040rdb: enable both CPU portsVladimir Oltean2-1/+6
Since commit eca70102cfb1 ("net: dsa: felix: add support for changing DSA master") included in kernel v6.1, the driver supports 2 CPU ports, and they can be put in a LAG, for example (see Documentation/networking/dsa/configuration.rst for more details). Defining the second CPU port in the device tree should not cause any compatibility issue, because the default CPU port was &seville_port8 before this change, and still is &seville_port8 now (the numerically first CPU port is used by default). Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-28powerpc: dts: t1040rdb: fix compatible string for Rev A boardsVladimir Oltean1-1/+0
It looks like U-Boot fails to start the kernel properly when the compatible string of the board isn't fsl,T1040RDB, so stop overriding it from the rev-a.dts. Fixes: 5ebb74749202 ("powerpc: dts: t1040rdb: fix ports names for Seville Ethernet switch") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2023-02-25Merge tag 'powerpc-6.3-1' of ↵Linus Torvalds2-4/+33
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Support for configuring secure boot with user-defined keys on PowerVM LPARs - Simplify the replay of soft-masked IRQs by making it non-recursive - Add support for KCSAN on 64-bit Book3S - Improvements to the API & code which interacts with RTAS (pseries firmware) - Change 32-bit powermac to assign PCI bus numbers per domain by default - Some improvements to the 32-bit BPF JIT - Various other small features and fixes Thanks to Anders Roxell, Andrew Donnellan, Andrew Jeffery, Benjamin Gray, Christophe Leroy, Frederic Barrat, Ganesh Goudar, Geoff Levand, Greg Kroah-Hartman, Jan-Benedict Glaw, Josh Poimboeuf, Kajol Jain, Laurent Dufour, Mahesh Salgaonkar, Mathieu Desnoyers, Mimi Zohar, Murphy Zhou, Nathan Chancellor, Nathan Lynch, Nayna Jain, Nicholas Piggin, Pali Rohár, Petr Mladek, Rohan McLure, Russell Currey, Sachin Sant, Sathvika Vasireddy, Sourabh Jain, Stefan Berger, Stephen Rothwell, and Sudhakar Kuppusamy. * tag 'powerpc-6.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (114 commits) powerpc/pseries: Avoid hcall in plpks_is_available() on non-pseries powerpc: dts: turris1x.dts: Set lower priority for CPLD syscon-reboot powerpc/e500: Add missing prototype for 'relocate_init' powerpc/64: Fix unannotated intra-function call warning powerpc/epapr: Don't use wrteei on non booke powerpc: Pass correct CPU reference to assembler powerpc/mm: Rearrange if-else block to avoid clang warning powerpc/nohash: Fix build with llvm-as powerpc/nohash: Fix build error with binutils >= 2.38 powerpc/pseries: Fix endianness issue when parsing PLPKS secvar flags macintosh: windfarm: Use unsigned type for 1-bit bitfields powerpc/kexec_file: print error string on usable memory property update failure powerpc/machdep: warn when machine_is() used too early powerpc/64: Replace -mcpu=e500mc64 by -mcpu=e5500 powerpc/eeh: Set channel state after notifying the drivers selftests/powerpc: Fix incorrect kernel headers search path powerpc/rtas: arch-wide function token lookup conversions powerpc/rtas: introduce rtas_function_token() API powerpc/pseries/lpar: convert to papr_sysparm API powerpc/pseries/hv-24x7: convert to papr_sysparm API ...
2023-02-21powerpc: dts: turris1x.dts: Set lower priority for CPLD syscon-rebootPali Rohár1-0/+23
Due to CPLD firmware bugs, set CPLD syscon-reboot priority level to 64 (between rstcr and watchdog) to ensure that rstcr's global-utilities reset method which is preferred stay as default one, and to ensure that CPLD syscon-reboot is more preferred than watchdog reset method. Fixes: 0531a4abd1c6 ("powerpc: dts: turris1x.dts: Add CPLD reboot node") Depends-on: e6333293f27c ("power: reset: syscon-reboot: Add support for specifying priority") Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20230220080435.4237-1-pali@kernel.org
2023-02-12Merge branch 'fixes' into nextMichael Ellerman1-0/+4
Merge our fixes branch to bring in some changes that conflict with upcoming next content.
2023-01-30powerpc/boot: Don't always pass -mcpu=powerpc when building 32-bit uImagePali Rohár1-4/+10
When CONFIG_TARGET_CPU is specified then pass its value to the compiler -mcpu option. This fixes following build error when building kernel with powerpc e500 SPE capable cross compilers: BOOTAS arch/powerpc/boot/crt0.o powerpc-linux-gnuspe-gcc: error: unrecognized argument in option ‘-mcpu=powerpc’ powerpc-linux-gnuspe-gcc: note: valid arguments to ‘-mcpu=’ are: 8540 8548 native make[1]: *** [arch/powerpc/boot/Makefile:231: arch/powerpc/boot/crt0.o] Error 1 Similar change was already introduced for the main powerpc Makefile in commit 446cda1b21d9 ("powerpc/32: Don't always pass -mcpu=powerpc to the compiler"). Fixes: 40a75584e526 ("powerpc/boot: Build wrapper for an appropriate CPU") Cc: stable@vger.kernel.org # v5.19+ Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/2ae3ae5887babfdacc34435bff0944b3f336100a.1674632329.git.christophe.leroy@csgroup.eu
2023-01-15Merge tag 'powerpc-6.2-3' of ↵Linus Torvalds1-0/+4
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix a build failure with some versions of ld that have an odd version string - Fix incorrect use of mutex in the IMC PMU driver Thanks to Kajol Jain, Michael Petlan, Ojaswin Mujoo, Peter Zijlstra, and Yang Yingliang. * tag 'powerpc-6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s/hash: Make stress_hpt_timer_fn() static powerpc/imc-pmu: Fix use of mutex in IRQs disabled section powerpc/boot: Fix incorrect version calculation issue in ld_version
2023-01-11powerpc/boot: Fix incorrect version calculation issue in ld_versionOjaswin Mujoo1-0/+4
The ld_version() function computes the wrong version value for certain ld versions such as the following: $ ld --version GNU ld (GNU Binutils; SUSE Linux Enterprise 15) 2.37.20211103-150100.7.37 For input 2.37.20211103, the value computed is 202348030000 which is higher than the value for a later version like 2.39.0, which is 23900000. This issue was highlighted because with the above ld version, the powerpc kernel build started failing with ld error: "unrecognized option --no-warn-rwx-segments". This was caused due to the recent commit 579aee9fc594 ("powerpc: suppress some linker warnings in recent linker versions") which added the --no-warn-rwx-segments linker flag if the ld version is greater than 2.39. Due to the bug in ld_version(), ld version 2.37.20111103 is wrongly calculated to be greater than 2.39 and the unsupported flag is added. To fix it, if version is of the form x.y.z and length(z) == 8, then most probably it is a date [yyyymmdd] commonly used for release snapshots and not an actual new version. Hence, ignore the date part replacing it with 0. Fixes: 579aee9fc594 ("powerpc: suppress some linker warnings in recent linker versions") Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com> [mpe: Tweak change log wording/formatting, add Fixes tag] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20230104202437.90039-1-ojaswin@linux.ibm.com
2022-12-22powerpc: dts: t208x: Disable 10G on MAC1 and MAC2Sean Anderson1-0/+16
There aren't enough resources to run these ports at 10G speeds. Disable 10G for these ports, reverting to the previous speed. Fixes: 36926a7d70c2 ("powerpc: dts: t208x: Mark MAC1 and MAC2 as 10G") Reported-by: Camelia Alexandra Groza <camelia.groza@nxp.com> Signed-off-by: Sean Anderson <sean.anderson@seco.com> Reviewed-by: Camelia Groza <camelia.groza@nxp.com> Tested-by: Camelia Groza <camelia.groza@nxp.com> Link: https://lore.kernel.org/r/20221216172937.2960054-1-sean.anderson@seco.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-12-19Merge tag 'powerpc-6.2-1' of ↵Linus Torvalds10-11/+58
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Add powerpc qspinlock implementation optimised for large system scalability and paravirt. See the merge message for more details - Enable objtool to be built on powerpc to generate mcount locations - Use a temporary mm for code patching with the Radix MMU, so the writable mapping is restricted to the patching CPU - Add an option to build the 64-bit big-endian kernel with the ELFv2 ABI - Sanitise user registers on interrupt entry on 64-bit Book3S - Many other small features and fixes Thanks to Aboorva Devarajan, Angel Iglesias, Benjamin Gray, Bjorn Helgaas, Bo Liu, Chen Lifu, Christoph Hellwig, Christophe JAILLET, Christophe Leroy, Christopher M. Riedl, Colin Ian King, Deming Wang, Disha Goel, Dmitry Torokhov, Finn Thain, Geert Uytterhoeven, Gustavo A. R. Silva, Haowen Bai, Joel Stanley, Jordan Niethe, Julia Lawall, Kajol Jain, Laurent Dufour, Li zeming, Miaoqian Lin, Michael Jeanson, Nathan Lynch, Naveen N. Rao, Nayna Jain, Nicholas Miehlbradt, Nicholas Piggin, Pali Rohár, Randy Dunlap, Rohan McLure, Russell Currey, Sathvika Vasireddy, Shaomin Deng, Stephen Kitt, Stephen Rothwell, Thomas Weißschuh, Tiezhu Yang, Uwe Kleine-König, Xie Shaowen, Xiu Jianfeng, XueBing Chen, Yang Yingliang, Zhang Jiaming, ruanjinjie, Jessica Yu, and Wolfram Sang. * tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (181 commits) powerpc/code-patching: Fix oops with DEBUG_VM enabled powerpc/qspinlock: Fix 32-bit build powerpc/prom: Fix 32-bit build powerpc/rtas: mandate RTAS syscall filtering powerpc/rtas: define pr_fmt and convert printk call sites powerpc/rtas: clean up includes powerpc/rtas: clean up rtas_error_log_max initialization powerpc/pseries/eeh: use correct API for error log size powerpc/rtas: avoid scheduling in rtas_os_term() powerpc/rtas: avoid device tree lookups in rtas_os_term() powerpc/rtasd: use correct OF API for event scan rate powerpc/rtas: document rtas_call() powerpc/pseries: unregister VPA when hot unplugging a CPU powerpc/pseries: reset the RCU watchdogs after a LPM powerpc: Take in account addition CPU node when building kexec FDT powerpc: export the CPU node count powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state powerpc/dts/fsl: Fix pca954x i2c-mux node names cxl: Remove unnecessary cxl_pci_window_alignment() selftests/powerpc: Fix resource leaks ...
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