Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.6.132 2024-10-04T14:28:50+00:00 2024-10-04T14:28:50+00:00 Dave Martin Dave.Martin@arm.com 2024-07-29T15:20:05+00:00 urn:sha1:32ba3160889e8aced36ac8c7d49fef92f25da113 [ Upstream commit fc2220c9b15828319b09384e68399b4afc6276d9 ] A few SME-related sigcontext UAPI macros leave an argument unprotected from misparsing during macro expansion. Add parentheses around references to macro arguments where appropriate. Signed-off-by: Dave Martin <Dave.Martin@arm.com> Fixes: ee072cf70804 ("arm64/sme: Implement signal handling for ZT") Fixes: 39782210eb7e ("arm64/sme: Implement ZA signal handling") Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20240729152005.289844-1-Dave.Martin@arm.com Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> 2023-08-29T00:34:54+00:00 Linus Torvalds torvalds@linux-foundation.org 2023-08-29T00:34:54+00:00 urn:sha1:542034175ca715d28522a59c1f88a58349f2765c Pull arm64 updates from Will Deacon: "I think we have a bit less than usual on the architecture side, but that's somewhat balanced out by a large crop of perf/PMU driver updates and extensions to our selftests. CPU features and system registers: - Advertise hinted conditional branch support (FEAT_HBC) to userspace - Avoid false positive "SANITY CHECK" warning when xCR registers differ outside of the length field Documentation: - Fix macro name typo in SME documentation Entry code: - Unmask exceptions earlier on the system call entry path Memory management: - Don't bother clearing PTE_RDONLY for dirty ptes in pte_wrprotect() and pte_modify() Perf and PMU drivers: - Initial support for Coresight TRBE devices on ACPI systems (the coresight driver changes will come later) - Fix hw_breakpoint single-stepping when called from bpf - Fixes for DDR PMU on i.MX8MP SoC - Add NUMA-awareness to Hisilicon PCIe PMU driver - Fix locking dependency issue in Arm DMC620 PMU driver - Workaround Hisilicon erratum 162001900 in the SMMUv3 PMU driver - Add support for Arm CMN-700 r3 parts to the CMN PMU driver - Add support for recent Arm Cortex CPU PMUs - Update Hisilicon PMU maintainers Selftests: - Add a bunch of new features to the hwcap test (JSCVT, PMULL, AES, SHA1, etc) - Fix SSVE test to leave streaming-mode after grabbing the signal context - Add new test for SVE vector-length changes with SME enabled Miscellaneous: - Allow compiler to warn on suspicious looking system register expressions - Work around SDEI firmware bug by aborting any running handlers on a kernel crash - Fix some harmless warnings when building with W=1 - Remove some unused function declarations - Other minor fixes and cleanup" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (62 commits) drivers/perf: hisi: Update HiSilicon PMU maintainers arm_pmu: acpi: Add a representative platform device for TRBE arm_pmu: acpi: Refactor arm_spe_acpi_register_device() kselftest/arm64: Fix hwcaps selftest build hw_breakpoint: fix single-stepping when using bpf_overflow_handler arm64/sysreg: refactor deprecated strncpy kselftest/arm64: add jscvt feature to hwcap test kselftest/arm64: add pmull feature to hwcap test kselftest/arm64: add AES feature check to hwcap test kselftest/arm64: add SHA1 and related features to hwcap test arm64: sysreg: Generate C compiler warnings on {read,write}_sysreg_s arguments kselftest/arm64: build BTI tests in output directory perf/imx_ddr: don't enable counter0 if none of 4 counters are used perf/imx_ddr: speed up overflow frequency of cycle drivers/perf: hisi: Schedule perf session according to locality kselftest/arm64: fix a memleak in zt_regs_run() perf/arm-dmc620: Fix dmc620_pmu_irqs_lock/cpu_hotplug_lock circular lock dependency perf/smmuv3: Add MODULE_ALIAS for module auto loading perf/smmuv3: Enable HiSilicon Erratum 162001900 quirk for HIP08/09 kselftest/arm64: Size sycall-abi buffers for the actual maximum VL ... 2023-08-18T16:13:36+00:00 Linus Torvalds torvalds@linux-foundation.org 2023-08-18T16:13:36+00:00 urn:sha1:eabeef9054fdd317e58387ed0ab1a32fe9eb5909 Pull asm-generic regression fix from Arnd Bergmann: "Just one partial revert for a commit from the merge window that caused annoying behavior when building old kernels on arm64 hosts" * tag 'asm-generic-fix-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic: partially revert "Unify uapi bitsperlong.h for arm64, riscv and loongarch" 2023-08-17T12:51:20+00:00 Arnd Bergmann arnd@arndb.de 2023-08-11T20:36:58+00:00 urn:sha1:6e8d96909a23c8078ee965bd48bb31cbef2de943 Unifying the asm-generic headers across 32-bit and 64-bit architectures based on the compiler provided macros was a good idea and appears to work with all user space, but it caused a regression when building old kernels on systems that have the new headers installed in /usr/include, as this combination trips an inconsistency in the kernel's own tools/include headers that are a mix of userspace and kernel-internal headers. This affects kernel builds on arm64, riscv64 and loongarch64 systems that might end up using the "#define __BITS_PER_LONG 32" default from the old tools headers. Backporting the commit into stable kernels would address this, but it would still break building kernels without that backport, and waste time for developers trying to understand the problem. arm64 build machines are rather common, and on riscv64 this can also happen in practice, but loongarch64 is probably new enough to not be used much for building old kernels, so only revert the bits for arm64 and riscv. Link: https://lore.kernel.org/all/20230731160402.GB1823389@dev-arch.thelio-3990X/ Reported-by: Nathan Chancellor <nathan@kernel.org> Fixes: 8386f58f8deda ("asm-generic: Unify uapi bitsperlong.h for arm64, riscv and loongarch") Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Tested-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> 2023-08-04T16:32:13+00:00 Joey Gouly joey.gouly@arm.com 2023-08-04T14:37:45+00:00 urn:sha1:7f86d128e437990fd08d9e66ae7c1571666cff8a Add a HWCAP for FEAT_HBC, so that userspace can make a decision on using this feature. Signed-off-by: Joey Gouly <joey.gouly@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20230804143746.3900803-2-joey.gouly@arm.com Signed-off-by: Will Deacon <will@kernel.org> 2023-07-06T17:06:04+00:00 Linus Torvalds torvalds@linux-foundation.org 2023-07-06T17:06:04+00:00 urn:sha1:7b82e90411826deee07c180ec35f64d31051d154 Pull asm-generic updates from Arnd Bergmann: "These are cleanups for architecture specific header files: - the comments in include/linux/syscalls.h have gone out of sync and are really pointless, so these get removed - The asm/bitsperlong.h header no longer needs to be architecture specific on modern compilers, so use a generic version for newer architectures that use new enough userspace compilers - A cleanup for virt_to_pfn/virt_to_bus to have proper type checking, forcing the use of pointers" * tag 'asm-generic-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: syscalls: Remove file path comments from headers tools arch: Remove uapi bitsperlong.h of hexagon and microblaze asm-generic: Unify uapi bitsperlong.h for arm64, riscv and loongarch m68k/mm: Make pfn accessors static inlines arm64: memory: Make virt_to_pfn() a static inline ARM: mm: Make virt_to_pfn() a static inline asm-generic/page.h: Make pfn accessors static inlines xen/netback: Pass (void *) to virt_to_page() netfs: Pass a pointer to virt_to_page() cifs: Pass a pointer to virt_to_page() in cifsglob cifs: Pass a pointer to virt_to_page() riscv: mm: init: Pass a pointer to virt_to_page() ARC: init: Pass a pointer to virt_to_pfn() in init m68k: Pass a pointer to virt_to_pfn() virt_to_page() fs/proc/kcore.c: Pass a pointer to virt_addr_valid() 2023-06-28T04:52:15+00:00 Linus Torvalds torvalds@linux-foundation.org 2023-06-28T04:52:15+00:00 urn:sha1:6aeadf7896bff4ca230702daba8788455e6b866e Pull arm64 documentation move from Jonathan Corbet: "Move the arm64 architecture documentation under Documentation/arch/. This brings some order to the documentation directory, declutters the top-level directory, and makes the documentation organization more closely match that of the source" * tag 'docs-arm64-move' of git://git.lwn.net/linux: perf arm-spe: Fix a dangling Documentation/arm64 reference mm: Fix a dangling Documentation/arm64 reference arm64: Fix dangling references to Documentation/arm64 dt-bindings: fix dangling Documentation/arm64 reference docs: arm64: Move arm64 documentation under Documentation/arch/ 2023-06-22T15:04:36+00:00 Tiezhu Yang yangtiezhu@loongson.cn 2023-06-22T14:13:38+00:00 urn:sha1:8386f58f8deda81110283798a387fb53ec21957c Now we specify the minimal version of GCC as 5.1 and Clang/LLVM as 11.0.0 in Documentation/process/changes.rst, __CHAR_BIT__ and __SIZEOF_LONG__ are usable, it is probably fine to unify the definition of __BITS_PER_LONG as (__CHAR_BIT__ * __SIZEOF_LONG__) in asm-generic uapi bitsperlong.h. In order to keep safe and avoid regression, only unify uapi bitsperlong.h for some archs such as arm64, riscv and loongarch which are using newer toolchains that have the definitions of __CHAR_BIT__ and __SIZEOF_LONG__. Suggested-by: Xi Ruoyao <xry111@xry111.site> Link: https://lore.kernel.org/all/d3e255e4746de44c9903c4433616d44ffcf18d1b.camel@xry111.site/ Suggested-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/linux-arch/a3a4f48a-07d4-4ed9-bc53-5d383428bdd2@app.fastmail.com/ Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Arnd Bergmann <arnd@arndb.de> 2023-06-21T14:53:31+00:00 Jonathan Corbet corbet@lwn.net 2023-06-12T12:10:53+00:00 urn:sha1:6e4596c4038adfcf52d0dc37ba9cb505c4afaa65 The arm64 documentation has moved under Documentation/arch/; fix up references in the arm64 subtree to match. Cc: Will Deacon <will@kernel.org> Cc: Ard Biesheuvel <ardb@kernel.org> Cc: linux-efi@vger.kernel.org Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> 2023-06-05T16:05:41+00:00 Kristina Martsenko kristina.martsenko@arm.com 2023-05-09T14:22:33+00:00 urn:sha1:b7564127ffcb1a26854d7515a0918d775e663639 The Arm v8.8/9.3 FEAT_MOPS feature provides new instructions that perform a memory copy or set. Wire up the cpufeature code to detect the presence of FEAT_MOPS and enable it. Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com> Link: https://lore.kernel.org/r/20230509142235.3284028-10-kristina.martsenko@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>