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* Merge tag 'arm64-fixes' of ↵Linus Torvalds2022-10-142-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Catalin Marinas: - Cortex-A55 errata workaround (repeat TLBI) - AMPERE1 added to the Spectre-BHB affected list - MTE fix to avoid setting PG_mte_tagged if no tags have been touched on a page - Fixed typo in the SCTLR_EL1.SPINTMASK bit naming (the commit log has other typos) - perf: return value check in ali_drw_pmu_probe(), ALIBABA_UNCORE_DRW_PMU dependency on ACPI * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: Add AMPERE1 to the Spectre-BHB affected list arm64: mte: Avoid setting PG_mte_tagged if no tags cleared or restored MAINTAINERS: rectify file entry in ALIBABA PMU DRIVER drivers/perf: ALIBABA_UNCORE_DRW_PMU should depend on ACPI drivers/perf: fix return value check in ali_drw_pmu_probe() arm64: errata: Add Cortex-A55 to the repeat tlbi list arm64/sysreg: Fix typo in SCTR_EL1.SPINTMASK
| * drivers/perf: ALIBABA_UNCORE_DRW_PMU should depend on ACPIGeert Uytterhoeven2022-10-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | The Alibaba T-Head Yitian 710 DDR Sub-system Driveway PMU driver relies solely on ACPI for matching. Hence add a dependency on ACPI, to prevent asking the user about this driver when configuring a kernel without ACPI support. Fixes: cf7b61073e45 ("drivers/perf: add DDR Sub-System Driveway PMU driver for Yitian 710 SoC") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/2a4407bb598285660fa5e604e56823ddb12bb0aa.1664285774.git.geert+renesas@glider.be Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| * drivers/perf: fix return value check in ali_drw_pmu_probe()Sun Ke2022-10-071-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | In case of error, devm_ioremap_resource() returns ERR_PTR(), and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: cf7b61073e45 ("drivers/perf: add DDR Sub-System Driveway PMU driver for Yitian 710 SoC") Signed-off-by: Sun Ke <sunke32@huawei.com> Acked-by: Will Deacon <will@kernel.org> Reviewed-by: Shuai Xue <xueshuai@linux.alibaba.com> Link: https://lore.kernel.org/r/20220924032127.313156-1-sunke32@huawei.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
* | Merge tag 'riscv-for-linus-6.1-mw2' of ↵Linus Torvalds2022-10-141-2/+5
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull more RISC-V updates from Palmer Dabbelt: - DT updates for the PolarFire SOC - a fix to correct the handling of write-only mappings - m{vetndor,arcd,imp}id is now in /proc/cpuinfo - the SiFive L2 cache controller support has been refactored to also support L3 caches - misc fixes, cleanups and improvements throughout the tree * tag 'riscv-for-linus-6.1-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (42 commits) MAINTAINERS: add RISC-V's patchwork RISC-V: Make port I/O string accessors actually work riscv: enable software resend of irqs RISC-V: Re-enable counter access from userspace riscv: vdso: fix NULL deference in vdso_join_timens() when vfork riscv: Add cache information in AUX vector soc: sifive: ccache: define the macro for the register shifts soc: sifive: ccache: use pr_fmt() to remove CCACHE: prefixes soc: sifive: ccache: reduce printing on init soc: sifive: ccache: determine the cache level from dts soc: sifive: ccache: Rename SiFive L2 cache to Composable cache. dt-bindings: sifive-ccache: change Sifive L2 cache to Composable cache riscv: check for kernel config option in t-head memory types errata riscv: use BIT() marco for cpufeature probing riscv: use BIT() macros in t-head errata init riscv: drop some idefs from CMO initialization riscv: cleanup svpbmt cpufeature probing riscv: Pass -mno-relax only on lld < 15.0.0 RISC-V: Avoid dereferening NULL regs in die() dt-bindings: riscv: add new riscv,isa strings for emulators ...
| * | RISC-V: Re-enable counter access from userspacePalmer Dabbelt2022-10-131-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These counters were part of the ISA when we froze the uABI, removing them breaks userspace. Link: https://lore.kernel.org/all/YxEhC%2FmDW1lFt36J@aurel32.net/ Fixes: e9991434596f ("RISC-V: Add perf platform driver based on SBI PMU extension") Tested-by: Conor Dooley <conor.dooley@microchip.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20220928131807.30386-1-palmer@rivosinc.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
* | | Merge tag 'perf-core-2022-10-07' of ↵Linus Torvalds2022-10-101-1/+3
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf events updates from Ingo Molnar: "PMU driver updates: - Add AMD Last Branch Record Extension Version 2 (LbrExtV2) feature support for Zen 4 processors. - Extend the perf ABI to provide branch speculation information, if available, and use this on CPUs that have it (eg. LbrExtV2). - Improve Intel PEBS TSC timestamp handling & integration. - Add Intel Raptor Lake S CPU support. - Add 'perf mem' and 'perf c2c' memory profiling support on AMD CPUs by utilizing IBS tagged load/store samples. - Clean up & optimize various x86 PMU details. HW breakpoints: - Big rework to optimize the code for systems with hundreds of CPUs and thousands of breakpoints: - Replace the nr_bp_mutex global mutex with the bp_cpuinfo_sem per-CPU rwsem that is read-locked during most of the key operations. - Improve the O(#cpus * #tasks) logic in toggle_bp_slot() and fetch_bp_busy_slots(). - Apply micro-optimizations & cleanups. - Misc cleanups & enhancements" * tag 'perf-core-2022-10-07' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (75 commits) perf/hw_breakpoint: Annotate tsk->perf_event_mutex vs ctx->mutex perf: Fix pmu_filter_match() perf: Fix lockdep_assert_event_ctx() perf/x86/amd/lbr: Adjust LBR regardless of filtering perf/x86/utils: Fix uninitialized var in get_branch_type() perf/uapi: Define PERF_MEM_SNOOPX_PEER in kernel header file perf/x86/amd: Support PERF_SAMPLE_PHY_ADDR perf/x86/amd: Support PERF_SAMPLE_ADDR perf/x86/amd: Support PERF_SAMPLE_{WEIGHT|WEIGHT_STRUCT} perf/x86/amd: Support PERF_SAMPLE_DATA_SRC perf/x86/amd: Add IBS OP_DATA2 DataSrc bit definitions perf/mem: Introduce PERF_MEM_LVLNUM_{EXTN_MEM|IO} perf/x86/uncore: Add new Raptor Lake S support perf/x86/cstate: Add new Raptor Lake S support perf/x86/msr: Add new Raptor Lake S support perf/x86: Add new Raptor Lake S support bpf: Check flags for branch stack in bpf_read_branch_records helper perf, hw_breakpoint: Fix use-after-free if perf_event_open() fails perf: Use sample_flags for raw_data perf: Use sample_flags for addr ...
| * | Merge branch 'v6.0-rc7'Peter Zijlstra2022-09-293-3/+3
| |\ \ | | | | | | | | | | | | | | | | | | | | Merge upstream to get RAPTORLAKE_S Signed-off-by: Peter Zijlstra <peterz@infradead.org>
| * | | arm64/perf: Assert all platform event flags are within PERF_EVENT_FLAG_ARCHAnshuman Khandual2022-09-071-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ensure all platform specific event flags are within PERF_EVENT_FLAG_ARCH. Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: James Clark <james.clark@arm.com> Link: https://lkml.kernel.org/r/20220907091924.439193-4-anshuman.khandual@arm.com
* | | | Merge tag 'riscv-for-linus-6.1-mw1' of ↵Linus Torvalds2022-10-092-13/+22
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: - Improvements to the CPU topology subsystem, which fix some issues where RISC-V would report bad topology information. - The default NR_CPUS has increased to XLEN, and the maximum configurable value is 512. - The CD-ROM filesystems have been enabled in the defconfig. - Support for THP_SWAP has been added for rv64 systems. There are also a handful of cleanups and fixes throughout the tree. * tag 'riscv-for-linus-6.1-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: enable THP_SWAP for RV64 RISC-V: Print SSTC in canonical order riscv: compat: s/failed/unsupported if compat mode isn't supported RISC-V: Increase range and default value of NR_CPUS cpuidle: riscv-sbi: Fix CPU_PM_CPU_IDLE_ENTER_xyz() macro usage perf: RISC-V: throttle perf events perf: RISC-V: exclude invalid pmu counters from SBI calls riscv: enable CD-ROM file systems in defconfig riscv: topology: fix default topology reporting arm64: topology: move store_cpu_topology() to shared code
| * | | | perf: RISC-V: throttle perf eventsSergey Matyukevich2022-09-081-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Call perf_sample_event_took() to report time spent in overflow interrupts. Perf core uses these measurements to throttle perf events properly. Signed-off-by: Sergey Matyukevich <sergey.matyukevich@syntacore.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20220830155306.301714-4-geomatsi@gmail.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
| * | | | perf: RISC-V: exclude invalid pmu counters from SBI callsSergey Matyukevich2022-09-082-13/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SBI firmware may not provide information for some counters in response to SBI_EXT_PMU_COUNTER_GET_INFO call. Exclude such counters from the subsequent SBI requests. For this purpose use global mask to keep track of fully specified counters. Signed-off-by: Sergey Matyukevich <sergey.matyukevich@syntacore.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20220830155306.301714-3-geomatsi@gmail.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
* | | | | Merge tag 'arm64-upstream' of ↵Linus Torvalds2022-10-065-4/+822
|\ \ \ \ \ | | |_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Catalin Marinas: - arm64 perf: DDR PMU driver for Alibaba's T-Head Yitian 710 SoC, SVE vector granule register added to the user regs together with SVE perf extensions documentation. - SVE updates: add HWCAP for SVE EBF16, update the SVE ABI documentation to match the actual kernel behaviour (zeroing the registers on syscall rather than "zeroed or preserved" previously). - More conversions to automatic system registers generation. - vDSO: use self-synchronising virtual counter access in gettimeofday() if the architecture supports it. - arm64 stacktrace cleanups and improvements. - arm64 atomics improvements: always inline assembly, remove LL/SC trampolines. - Improve the reporting of EL1 exceptions: rework BTI and FPAC exception handling, better EL1 undefs reporting. - Cortex-A510 erratum 2658417: remove BF16 support due to incorrect result. - arm64 defconfig updates: build CoreSight as a module, enable options necessary for docker, memory hotplug/hotremove, enable all PMUs provided by Arm. - arm64 ptrace() support for TPIDR2_EL0 (register provided with the SME extensions). - arm64 ftraces updates/fixes: fix module PLTs with mcount, remove unused function. - kselftest updates for arm64: simple HWCAP validation, FP stress test improvements, validation of ZA regs in signal handlers, include larger SVE and SME vector lengths in signal tests, various cleanups. - arm64 alternatives (code patching) improvements to robustness and consistency: replace cpucap static branches with equivalent alternatives, associate callback alternatives with a cpucap. - Miscellaneous updates: optimise kprobe performance of patching single-step slots, simplify uaccess_mask_ptr(), move MTE registers initialisation to C, support huge vmalloc() mappings, run softirqs on the per-CPU IRQ stack, compat (arm32) misalignment fixups for multiword accesses. * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (126 commits) arm64: alternatives: Use vdso/bits.h instead of linux/bits.h arm64/kprobe: Optimize the performance of patching single-step slot arm64: defconfig: Add Coresight as module kselftest/arm64: Handle EINTR while reading data from children kselftest/arm64: Flag fp-stress as exiting when we begin finishing up kselftest/arm64: Don't repeat termination handler for fp-stress ARM64: reloc_test: add __init/__exit annotations to module init/exit funcs arm64/mm: fold check for KFENCE into can_set_direct_map() arm64: ftrace: fix module PLTs with mcount arm64: module: Remove unused plt_entry_is_initialized() arm64: module: Make plt_equals_entry() static arm64: fix the build with binutils 2.27 kselftest/arm64: Don't enable v8.5 for MTE selftest builds arm64: uaccess: simplify uaccess_mask_ptr() arm64: asm/perf_regs.h: Avoid C++-style comment in UAPI header kselftest/arm64: Fix typo in hwcap check arm64: mte: move register initialization to C arm64: mm: handle ARM64_KERNEL_USES_PMD_MAPS in vmemmap_populate() arm64: dma: Drop cache invalidation from arch_dma_prep_coherent() arm64/sve: Add Perf extensions documentation ...
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| *-. \ \ \ Merge branches 'for-next/doc', 'for-next/sve', 'for-next/sysreg', ↵Catalin Marinas2022-09-301-3/+3
| |\ \ \ \ \ | | | |_|/ / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'for-next/gettimeofday', 'for-next/stacktrace', 'for-next/atomics', 'for-next/el1-exceptions', 'for-next/a510-erratum-2658417', 'for-next/defconfig', 'for-next/tpidr2_el0' and 'for-next/ftrace', remote-tracking branch 'arm64/for-next/perf' into for-next/core * arm64/for-next/perf: arm64: asm/perf_regs.h: Avoid C++-style comment in UAPI header arm64/sve: Add Perf extensions documentation perf: arm64: Add SVE vector granule register to user regs MAINTAINERS: add maintainers for Alibaba' T-Head PMU driver drivers/perf: add DDR Sub-System Driveway PMU driver for Yitian 710 SoC docs: perf: Add description for Alibaba's T-Head PMU driver * for-next/doc: : Documentation/arm64 updates arm64/sve: Document our actual ABI for clearing registers on syscall * for-next/sve: : SVE updates arm64/sysreg: Add hwcap for SVE EBF16 * for-next/sysreg: (35 commits) : arm64 system registers generation (more conversions) arm64/sysreg: Fix a few missed conversions arm64/sysreg: Convert ID_AA64AFRn_EL1 to automatic generation arm64/sysreg: Convert ID_AA64DFR1_EL1 to automatic generation arm64/sysreg: Convert ID_AA64FDR0_EL1 to automatic generation arm64/sysreg: Use feature numbering for PMU and SPE revisions arm64/sysreg: Add _EL1 into ID_AA64DFR0_EL1 definition names arm64/sysreg: Align field names in ID_AA64DFR0_EL1 with architecture arm64/sysreg: Add defintion for ALLINT arm64/sysreg: Convert SCXTNUM_EL1 to automatic generation arm64/sysreg: Convert TIPDR_EL1 to automatic generation arm64/sysreg: Convert ID_AA64PFR1_EL1 to automatic generation arm64/sysreg: Convert ID_AA64PFR0_EL1 to automatic generation arm64/sysreg: Convert ID_AA64MMFR2_EL1 to automatic generation arm64/sysreg: Convert ID_AA64MMFR1_EL1 to automatic generation arm64/sysreg: Convert ID_AA64MMFR0_EL1 to automatic generation arm64/sysreg: Convert HCRX_EL2 to automatic generation arm64/sysreg: Standardise naming of ID_AA64PFR1_EL1 SME enumeration arm64/sysreg: Standardise naming of ID_AA64PFR1_EL1 BTI enumeration arm64/sysreg: Standardise naming of ID_AA64PFR1_EL1 fractional version fields arm64/sysreg: Standardise naming for MTE feature enumeration ... * for-next/gettimeofday: : Use self-synchronising counter access in gettimeofday() (if FEAT_ECV) arm64: vdso: use SYS_CNTVCTSS_EL0 for gettimeofday arm64: alternative: patch alternatives in the vDSO arm64: module: move find_section to header * for-next/stacktrace: : arm64 stacktrace cleanups and improvements arm64: stacktrace: track hyp stacks in unwinder's address space arm64: stacktrace: track all stack boundaries explicitly arm64: stacktrace: remove stack type from fp translator arm64: stacktrace: rework stack boundary discovery arm64: stacktrace: add stackinfo_on_stack() helper arm64: stacktrace: move SDEI stack helpers to stacktrace code arm64: stacktrace: rename unwind_next_common() -> unwind_next_frame_record() arm64: stacktrace: simplify unwind_next_common() arm64: stacktrace: fix kerneldoc comments * for-next/atomics: : arm64 atomics improvements arm64: atomic: always inline the assembly arm64: atomics: remove LL/SC trampolines * for-next/el1-exceptions: : Improve the reporting of EL1 exceptions arm64: rework BTI exception handling arm64: rework FPAC exception handling arm64: consistently pass ESR_ELx to die() arm64: die(): pass 'err' as long arm64: report EL1 UNDEFs better * for-next/a510-erratum-2658417: : Cortex-A510: 2658417: remove BF16 support due to incorrect result arm64: errata: remove BF16 HWCAP due to incorrect result on Cortex-A510 arm64: cpufeature: Expose get_arm64_ftr_reg() outside cpufeature.c arm64: cpufeature: Force HWCAP to be based on the sysreg visible to user-space * for-next/defconfig: : arm64 defconfig updates arm64: defconfig: Add Coresight as module arm64: Enable docker support in defconfig arm64: defconfig: Enable memory hotplug and hotremove config arm64: configs: Enable all PMUs provided by Arm * for-next/tpidr2_el0: : arm64 ptrace() support for TPIDR2_EL0 kselftest/arm64: Add coverage of TPIDR2_EL0 ptrace interface arm64/ptrace: Support access to TPIDR2_EL0 arm64/ptrace: Document extension of NT_ARM_TLS to cover TPIDR2_EL0 kselftest/arm64: Add test coverage for NT_ARM_TLS * for-next/ftrace: : arm64 ftraces updates/fixes arm64: ftrace: fix module PLTs with mcount arm64: module: Remove unused plt_entry_is_initialized() arm64: module: Make plt_equals_entry() static
| | | * | | arm64/sysreg: Fix a few missed conversionsNathan Chancellor2022-09-211-3/+3
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After the conversion to automatically generating the ID_AA64DFR0_EL1 definition names, the build fails in a few different places because some of the definitions were not changed to their new names along the way. Update the names to resolve the build errors. Fixes: c0357a73fa4a ("arm64/sysreg: Align field names in ID_AA64DFR0_EL1 with architecture") Signed-off-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20220919160928.3905780-1-nathan@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| * | | | perf: arm64: Add SVE vector granule register to user regsJames Clark2022-09-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dwarf based unwinding in a function that pushes SVE registers onto the stack requires the unwinder to know the length of the SVE register to calculate the stack offsets correctly. This was added to the Arm specific Dwarf spec as the VG pseudo register[1]. Add the vector length at position 46 if it's requested by userspace and SVE is supported. If it's not supported then fail to open the event. The vector length must be on each sample because it can be changed at runtime via a prctl or ptrace call. Also by adding it as a register rather than a separate attribute, minimal changes will be required in an unwinder that already indexes into the register list. [1]: https://github.com/ARM-software/abi-aa/blob/main/aadwarf64/aadwarf64.rst Reviewed-by: Mark Brown <broonie@kernel.org> Signed-off-by: James Clark <james.clark@arm.com> Link: https://lore.kernel.org/r/20220901132658.1024635-2-james.clark@arm.com Signed-off-by: Will Deacon <will@kernel.org>
| * | | | drivers/perf: add DDR Sub-System Driveway PMU driver for Yitian 710 SoCShuai Xue2022-09-223-0/+818
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the DDR Sub-System Driveway Performance Monitoring Unit (PMU) driver support for Alibaba T-Head Yitian 710 SoC chip. Yitian supports DDR5/4 DRAM and targets cloud computing and HPC. Each PMU is registered as a device in /sys/bus/event_source/devices, and users can select event to monitor in each sub-channel, independently. For example, ali_drw_21000 and ali_drw_21080 are two PMU devices for two sub-channels of the same channel in die 0. And the PMU device of die 1 is prefixed with ali_drw_400XXXXX, e.g. ali_drw_40021000. Due to hardware limitation, one of DDRSS Driveway PMU overflow interrupt shares the same irq number with MPAM ERR_IRQ. To register DDRSS PMU and MPAM drivers successfully, add IRQF_SHARED flag. Signed-off-by: Shuai Xue <xueshuai@linux.alibaba.com> Co-developed-by: Hongbo Yao <yaohongbo@linux.alibaba.com> Signed-off-by: Hongbo Yao <yaohongbo@linux.alibaba.com> Co-developed-by: Neng Chen <nengchen@linux.alibaba.com> Signed-off-by: Neng Chen <nengchen@linux.alibaba.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com> Link: https://lore.kernel.org/r/20220818031822.38415-3-xueshuai@linux.alibaba.com Signed-off-by: Will Deacon <will@kernel.org>
* | | | Merge tag 'acpi-6.1-rc1' of ↵Linus Torvalds2022-10-033-8/+9
|\ \ \ \ | |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "ACPI and PNP updates for 6.1-rc1. These rearrange the ACPI device object initialization code (to get rid of a redundant parent pointer from struct acpi_device among other things), unify the _UID handling, drop support for some _OSI strings that should not be necessary any more, add new IDs to support more hardware and some more quirks, fix a few issues and clean up code all over. Specifics: - Reimplement acpi_get_pci_dev() using the list of physical devices associated with the given ACPI device object (Rafael Wysocki) - Rename ACPI device object reference counting functions (Rafael Wysocki) - Rearrange ACPI device object initialization code (Rafael Wysocki) - Drop parent field from struct acpi_device (Rafael Wysocki) - Extend the the int3472-tps68470 driver to support multiple consumers of a single TPS68470 along with the requisite framework-level support (Daniel Scally) - Filter out non-memory resources in is_memory(), add a helper function to find all memory type resources of an ACPI device object and use that function in 3 places (Heikki Krogerus) - Add IRQ override quirks for Asus Vivobook K3402ZA/K3502ZA and ASUS model S5402ZA (Tamim Khan, Kellen Renshaw) - Fix acpi_dev_state_d0() kerneldoc (Sakari Ailus) - Fix up suspend-to-idle support on ASUS Rembrandt laptops (Mario Limonciello) - Clean up ACPI platform devices support code (Andy Shevchenko, John Garry) - Clean up ACPI bus management code (Andy Shevchenko, ye xingchen) - Add support for multiple DMA windows with different offsets to the ACPI device enumeration code and use it on LoongArch (Jianmin Lv) - Clean up the ACPI LPSS (Intel SoC) driver (Andy Shevchenko) - Add a quirk for Dell Inspiron 14 2-in-1 for StorageD3Enable (Mario Limonciello) - Drop unused dev_fmt() and redundant 'HMAT' prefix from the HMAT parsing code (Liu Shixin) - Make ACPI FPDT parsing code avoid calling acpi_os_map_memory() on invalid physical addresses (Hans de Goede) - Silence missing-declarations warning related to Apple device properties management (Lukas Wunner) - Disable frequency invariance in the CPPC library if registers used by cppc_get_perf_ctrs() are accessed via PCC (Jeremy Linton) - Add ACPI disabled check to acpi_cpc_valid() (Perry Yuan) - Fix Tx acknowledge in the PCC address space handler (Huisong Li) - Use wait_for_completion_timeout() for PCC mailbox operations (Huisong Li) - Release resources on PCC address space setup failure path (Rafael Mendonca) - Remove unneeded result variables from APEI code (ye xingchen) - Print total number of records found during BERT log parsing (Dmitry Monakhov) - Drop support for 3 _OSI strings that should not be necessary any more and update documentation on custom _OSI strings so that adding new ones is not encouraged any more (Mario Limonciello) - Drop unneeded result variable from ec_write() (ye xingchen) - Remove the leftover struct acpi_ac_bl from the ACPI AC driver (Hanjun Guo) - Reorder symbols to get rid of a few forward declarations in the ACPI fan driver (Uwe Kleine-König) - Add Toshiba Satellite/Portege Z830 ACPI backlight quirk (Arvid Norlander) - Add ARM DMA-330 controller to the supported list in the ACPI AMBA driver (Vijayenthiran Subramaniam) - Drop references to non-functional 01.org/linux-acpi web site from MAINTAINERS and Kconfig help texts (Rafael Wysocki) - Replace strlcpy() with unused retval with strscpy() in the ACPI support code (Wolfram Sang) - Do not initialize ret in main() in the pfrut utility (Shi junming) - Drop useless ACPI DSDT override documentation (Rafael Wysocki) - Fix a few typos and wording mistakes in the ACPI device enumeration documentation (Jean Delvare) - Introduce acpi_dev_uid_to_integer() to convert a _UID string into an integer value (Andy Shevchenko) - Use acpi_dev_uid_to_integer() in several places to unify _UID handling (Andy Shevchenko) - Drop unused pnpid32_to_pnpid() declaration from PNP code (Gaosheng Cui)" * tag 'acpi-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (79 commits) ACPI: LPSS: Deduplicate skipping device in acpi_lpss_create_device() ACPI: LPSS: Replace loop with first entry retrieval ACPI: x86: s2idle: Add another ID to s2idle_dmi_table ACPI: x86: s2idle: Fix a NULL pointer dereference MAINTAINERS: Drop records pointing to 01.org/linux-acpi ACPI: Kconfig: Drop link to https://01.org/linux-acpi ACPI: docs: Drop useless DSDT override documentation ACPI: DPTF: Drop stale link from Kconfig help ACPI: x86: s2idle: Add a quirk for ASUSTeK COMPUTER INC. ROG Flow X13 ACPI: x86: s2idle: Add a quirk for Lenovo Slim 7 Pro 14ARH7 ACPI: x86: s2idle: Add a quirk for ASUS ROG Zephyrus G14 ACPI: x86: s2idle: Add a quirk for ASUS TUF Gaming A17 FA707RE ACPI: x86: s2idle: Add module parameter to prefer Microsoft GUID ACPI: x86: s2idle: If a new AMD _HID is missing assume Rembrandt ACPI: x86: s2idle: Move _HID handling for AMD systems into structures platform/x86: int3472: Add board data for Surface Go2 IR camera platform/x86: int3472: Support multiple gpio lookups in board data platform/x86: int3472: Support multiple clock consumers ACPI: bus: Add iterator for dependent devices ACPI: scan: Add acpi_dev_get_next_consumer_dev() ...
| * | | Merge branch 'acpi-uid'Rafael J. Wysocki2022-10-031-5/+5
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge ACPI _UID handling unification changes for 6.1-rc1: - Introduce acpi_dev_uid_to_integer() to convert a _UID string into an integer value (Andy Shevchenko). - Use acpi_dev_uid_to_integer() in several places to unify _UID handling (Andy Shevchenko). * acpi-uid: efi/dev-path-parser: Refactor _UID handling to use acpi_dev_uid_to_integer() spi: pxa2xx: Refactor _UID handling to use acpi_dev_uid_to_integer() perf: qcom_l2_pmu: Refactor _UID handling to use acpi_dev_uid_to_integer() i2c: mlxbf: Refactor _UID handling to use acpi_dev_uid_to_integer() i2c: amd-mp2-plat: Refactor _UID handling to use acpi_dev_uid_to_integer() ACPI: x86: Refactor _UID handling to use acpi_dev_uid_to_integer() ACPI: LPSS: Refactor _UID handling to use acpi_dev_uid_to_integer() ACPI: utils: Add acpi_dev_uid_to_integer() helper to get _UID as integer
| | * | | perf: qcom_l2_pmu: Refactor _UID handling to use acpi_dev_uid_to_integer()Andy Shevchenko2022-09-191-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ACPI utils provide acpi_dev_uid_to_integer() helper to extract _UID as an integer. Use it instead of custom approach. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | Merge branch 'acpi-dev'Rafael J. Wysocki2022-09-302-3/+4
| |\ \ \ \ | | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge changes regarding the management of ACPI device objects for 6.1-rc1: - Rename ACPI device object reference counting functions (Rafael Wysocki). - Rearrange ACPI device object initialization code (Rafael Wysocki). - Drop parent field from struct acpi_device (Rafael Wysocki). - Extend the the int3472-tps68470 driver to support multiple consumers of a single TPS68470 along with the requisite framework-level support (Daniel Scally). * acpi-dev: platform/x86: int3472: Add board data for Surface Go2 IR camera platform/x86: int3472: Support multiple gpio lookups in board data platform/x86: int3472: Support multiple clock consumers ACPI: bus: Add iterator for dependent devices ACPI: scan: Add acpi_dev_get_next_consumer_dev() ACPI: property: Use acpi_dev_parent() ACPI: Drop redundant acpi_dev_parent() header ACPI: PM: Fix NULL argument handling in acpi_device_get/set_power() ACPI: Drop parent field from struct acpi_device ACPI: scan: Eliminate __acpi_device_add() ACPI: scan: Rearrange initialization of ACPI device objects ACPI: scan: Rename acpi_bus_get_parent() and rearrange it ACPI: Rename acpi_bus_get/put_acpi_device()
| | * | | ACPI: Drop parent field from struct acpi_deviceRafael J. Wysocki2022-08-242-3/+4
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The parent field in struct acpi_device is, in fact, redundant, because the dev.parent field in it effectively points to the same object and it is used by the driver core. Accordingly, the parent field can be dropped from struct acpi_device and for this purpose define acpi_dev_parent() to retrieve a parent struct acpi_device pointer from the dev.parent field in struct acpi_device. Next, update all of the users of the parent field in struct acpi_device to use acpi_dev_parent() instead of it and drop it. While at it, drop the ACPI_IS_ROOT_DEVICE() macro that is only used in one place in a confusing way. No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Wei Liu <wei.liu@kernel.org> Reviewed-by: Punit Agrawal <punit.agrawal@bytedance.com>
* | | | Merge tag 'arm64-fixes' of ↵Linus Torvalds2022-09-241-1/+1
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "These are all very simple and self-contained, although the CFI jump-table fix touches the generic linker script as that's where the problematic macro lives. - Fix false positive "sleeping while atomic" warning resulting from the kPTI rework taking a mutex too early. - Fix possible overflow in AMU frequency calculation - Fix incorrect shift in CMN PMU driver which causes problems with newer versions of the IP - Reduce alignment of the CFI jump table to avoid huge kernel images and link errors with !4KiB page size configurations" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: vmlinux.lds.h: CFI: Reduce alignment of jump-table to function alignment perf/arm-cmn: Add more bits to child node address offset field arm64: topology: fix possible overflow in amu_fie_setup() arm64: mm: don't acquire mutex when rewriting swapper
| * | | perf/arm-cmn: Add more bits to child node address offset fieldIlkka Koskinen2022-09-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CMN-600 uses bits [27:0] for child node address offset while bits [30:28] are required to be zero. For CMN-650, the child node address offset field has been increased to include bits [29:0] while leaving only bit 30 set to zero. Let's include the missing two bits and assume older implementations comply with the spec and set bits [29:28] to 0. Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com> Fixes: 60d1504070c2 ("perf/arm-cmn: Support new IP features") Reviewed-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/20220808195455.79277-1-ilkka@os.amperecomputing.com Signed-off-by: Will Deacon <will@kernel.org>
* | | | Merge tag 'riscv-for-linus-6.0-rc5' of ↵Linus Torvalds2022-09-091-1/+1
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Palmer Dabbelt: - A pair of device tree fixes for the Polarfire SOC - A fix to avoid overflowing the PMU counter array when firmware incorrectly reports the number of supported counters, which manifests on OpenSBI versions prior to 1.1 * tag 'riscv-for-linus-6.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: perf: RISC-V: fix access beyond allocated array riscv: dts: microchip: use an mpfs specific l2 compatible dt-bindings: riscv: sifive-l2: add a PolarFire SoC compatible
| * | | | perf: RISC-V: fix access beyond allocated arraySergey Matyukevich2022-09-081-1/+1
| | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SBI firmware should report total number of firmware and hardware counters including unused ones or special ones. In this case the kernel doesn't need to make any assumptions about gaps in reported counters, e.g. excluded timer counter. That was fixed in OpenSBI v1.1 by commit 3f66465fb6bf ("lib: pmu: allow to use the highest available counter"). This kernel patch has no effect if SBI firmware behaves correctly. However it eliminates access beyond the allocated pmu_ctr_list if the kernel is used with OpenSBI older than v1.1. Fixes: e9991434596f ("RISC-V: Add perf platform driver based on SBI PMU extension") Signed-off-by: Sergey Matyukevich <sergey.matyukevich@syntacore.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220830155306.301714-2-geomatsi@gmail.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
* | | | Merge tag 'arm64-fixes' of ↵Linus Torvalds2022-09-021-1/+1
|\ \ \ \ | |/ / / |/| / / | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "It's a lot smaller than last week, with the star of the show being a couple of fixes to head.S addressing a boot regression introduced by the recent overhaul of that code in non-default configurations (i.e. KASLR disabled). The first of those two resolves the issue reported (and bisected) by Mikulus in the wait_on_bit() thread. Summary: - Fix two boot issues caused by the recent head.S rework when !KASLR - Fix calculation of crashkernel memory reservation - Fix bogus error check in PMU IRQ probing code" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: mm: Reserve enough pages for the initial ID map perf/arm_pmu_platform: fix tests for platform_get_irq() failure arm64: head: Ignore bogus KASLR displacement on non-relocatable kernels arm64/kexec: Fix missing extra range for crashkres_low.
| * / perf/arm_pmu_platform: fix tests for platform_get_irq() failureYu Zhe2022-09-011-1/+1
| |/ | | | | | | | | | | | | | | | | The platform_get_irq() returns negative error codes. It can't actually return zero. Signed-off-by: Yu Zhe <yuzhe@nfschina.com> Link: https://lore.kernel.org/r/20220825011844.8536-1-yuzhe@nfschina.com Signed-off-by: Will Deacon <will@kernel.org>
* / perf: riscv legacy: fix kerneldoc comment warningConor Dooley2022-08-181-1/+1
|/ | | | | | | | | | | Fix the warning: drivers/perf/riscv_pmu_legacy.c:76: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Fixes: 9b3e150e310e ("RISC-V: Add a simple platform driver for RISC-V legacy perf") Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220812143532.1962623-1-conor.dooley@microchip.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
* perf: riscv_pmu{,_sbi}: Miscallenous improvement & fixesPalmer Dabbelt2022-08-122-15/+16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | A series of mostly-independent fixes and cleanups for the RISC-V PMU drivers. Link: https://lore.kernel.org/lkml/CAAhSdy23vE8+HxU5Jxy2rBMjy3rBTrJt_4sriuROac_sEESSVw@mail.gmail.com/T/#m9de15aef1b65ae6155fa33ea1239578ef463c2a2 * palmer/riscv-pmu: RISC-V: Improve SBI definitions RISC-V: Move counter info definition to sbi header file RISC-V: Fix SBI PMU calls for RV32 RISC-V: Update user page mapping only once during start RISC-V: Fix counter restart during overflow for RV32
| * RISC-V: Move counter info definition to sbi header fileAtish Patra2022-08-111-14/+0
| | | | | | | | | | | | | | | | | | | | Counter info encoding format is defined by the SBI specificaiton. KVM implementation of SBI PMU extension will also leverage this definition. Move the definition to common sbi header file from the sbi pmu driver. Signed-off-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20220711174632.4186047-5-atishp@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
| * RISC-V: Fix SBI PMU calls for RV32Atish Patra2022-08-111-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some of the SBI PMU calls does not pass 64bit arguments correctly and not under RV32 compile time flags. Currently, this doesn't create any incorrect results as RV64 ignores any value in the additional register and qemu doesn't support raw events. Fix those SBI calls in order to set correct values for RV32. Fixes: e9991434596f ("RISC-V: Add perf platform driver based on SBI PMU extension") Signed-off-by: Atish Patra <atishp@rivosinc.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220711174632.4186047-4-atishp@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
| * RISC-V: Update user page mapping only once during startAtish Patra2022-08-112-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, riscv_pmu_event_set_period updates the userpage mapping. However, the caller of riscv_pmu_event_set_period should update the userpage mapping because the counter can not be updated/started from set_period function in counter overflow path. Invoke the perf_event_update_userpage at the caller so that it doesn't get invoked twice during counter start path. Fixes: f5bfa23f576f ("RISC-V: Add a perf core library for pmu drivers") Reviewed-by: Anup Patel <anup@brainfault.org> Signed-off-by: Atish Patra <atishp@rivosinc.com> Reviewed-by: Guo Ren <guoren@kernel.org> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220711174632.4186047-3-atishp@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
| * RISC-V: Fix counter restart during overflow for RV32Atish Patra2022-08-111-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | Pass the upper half of the initial value of the counter correctly for RV32. Fixes: 4905ec2fb7e6 ("RISC-V: Add sscofpmf extension support") Signed-off-by: Atish Patra <atishp@rivosinc.com> Reviewed-by: Guo Ren <guoren@kernel.org> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220711174632.4186047-2-atishp@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
* | drivers/perf: arm_spe: Fix consistency of SYS_PMSCR_EL1.CXAnshuman Khandual2022-07-191-2/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The arm_spe_pmu driver will enable SYS_PMSCR_EL1.CX in order to add CONTEXT packets into the traces, if the owner of the perf event runs with required capabilities i.e CAP_PERFMON or CAP_SYS_ADMIN via perfmon_capable() helper. The value of this bit is computed in the arm_spe_event_to_pmscr() function but the check for capabilities happens in the pmu event init callback i.e arm_spe_pmu_event_init(). This suggests that the value of the CX bit should remain consistent for the duration of the perf session. However, the function arm_spe_event_to_pmscr() may be called later during the event start callback i.e arm_spe_pmu_start() when the "current" process is not the owner of the perf session, hence the CX bit setting is currently not consistent. One way to fix this, is by caching the required value of the CX bit during the initialization of the PMU event, so that it remains consistent for the duration of the session. It uses currently unused 'event->hw.flags' element to cache perfmon_capable() value, which can be referred during event start callback to compute SYS_PMSCR_EL1.CX. This ensures consistent availability of context packets in the trace as per event owner capabilities. Drop BIT(SYS_PMSCR_EL1_CX_SHIFT) check in arm_spe_pmu_event_init(), because now CX bit cannot be set in arm_spe_event_to_pmscr() with perfmon_capable() disabled. Cc: Will Deacon <will@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Alexey Budankov <alexey.budankov@linux.intel.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Fixes: d5d9696b0380 ("drivers/perf: Add support for ARMv8.2 Statistical Profiling Extension") Reported-by: German Gomez <german.gomez@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20220714061302.2715102-1-anshuman.khandual@arm.com Signed-off-by: Will Deacon <will@kernel.org>
* | perf: RISC-V: Add of_node_put() when breaking out of for_each_of_cpu_node()Liang He2022-07-191-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | In pmu_sbi_setup_irqs(), we should call of_node_put() for the 'cpu' when breaking out of for_each_of_cput_node() as its refcount will be automatically increased and decreased during the iteration. Fixes: 4905ec2fb7e6 ("RISC-V: Add sscofpmf extension support") Signed-off-by: Liang He <windhl@126.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Link: https://lore.kernel.org/r/20220715130330.443363-1-windhl@126.com Signed-off-by: Will Deacon <will@kernel.org>
* | drivers/perf: hisi: add driver for HNS3 PMUGuangbin Huang2022-07-063-0/+1682
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | HNS3(HiSilicon Network System 3) PMU is RCiEP device in HiSilicon SoC NIC, supports collection of performance statistics such as bandwidth, latency, packet rate and interrupt rate. NIC of each SICL has one PMU device for it. Driver registers each PMU device to perf, and exports information of supported events, filter mode of each event, bdf range, hardware clock frequency, identifier and so on via sysfs. Each PMU device has its own registers of control, counters and interrupt, and it supports 8 hardware events, each hardward event has its own registers for configuration, counters and interrupt. Filter options contains: config - select event port - select physical port of nic tc - select tc(must be used with port) func - select PF/VF queue - select queue of PF/VF(must be used with func) intr - select interrupt number(must be used with func) global - select all functions of IO DIE Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Reviewed-by: John Garry <john.garry@huawei.com> Reviewed-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/20220628063419.38514-3-huangguangbin2@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
* | drivers/perf: riscv_pmu_sbi: perf formatNikita Shubin2022-07-061-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update driver to export formatting and event information to sysfs so it can be used by the perf user space tools with the syntaxes: perf stat -e cpu/event=0x05 perf stat -e cpu/event=0x05,firmware=0x1/ 63-bit is used to distinguish hardware events from firmware. Firmware events are defined by "RISC-V Supervisor Binary Interface Specification". perf stat -e cpu/event=0x05,firmware=0x1/ is equivalent to perf stat -e r8000000000000005 Suggested-by: João Mário Domingos <joao.mario@tecnico.ulisboa.pt> Signed-off-by: Nikita Shubin <n.shubin@yadro.com> Link: https://github.com/riscv-non-isa/riscv-sbi-doc/blob/master/riscv-sbi.adoc Link: https://lore.kernel.org/r/20220628114625.166665-2-nikita.shubin@maquefel.me Signed-off-by: Will Deacon <will@kernel.org>
* | perf/arm-cci: Use the bitmap API to allocate bitmapsChristophe JAILLET2022-07-061-5/+4
| | | | | | | | | | | | | | | | | | | | | | Use devm_bitmap_zalloc() instead of hand-writing it. It is less verbose and it improves the semantic. While at it, use bitmap_zero() instead of hand-writing it. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/fbde85a5e8ae99b10a2115d8ea1e69320a62947f.1657084786.git.christophe.jaillet@wanadoo.fr Signed-off-by: Will Deacon <will@kernel.org>
* | drivers/perf: riscv_pmu: Add riscv pmu pm notifierEric Lin2022-07-062-6/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, when the CPU is doing suspend to ram, we don't save pmu counter register and its content will be lost. To ensure perf profiling is not affected by suspend to ram, this patch is based on arm_pmu CPU_PM notifier and implements riscv pmu pm notifier. In the pm notifier, we stop the counter and update the counter value before suspend and start the counter after resume. Signed-off-by: Eric Lin <eric.lin@sifive.com> Link: https://lore.kernel.org/r/20220705091920.27432-1-eric.lin@sifive.com Signed-off-by: Will Deacon <will@kernel.org>
* | perf: hisi: Extract hisi_pmu_initChen Jun2022-06-277-74/+25
| | | | | | | | | | | | | | | | Extract the initialization code of hisi_pmu->pmu into a function Signed-off-by: Chen Jun <chenjun102@huawei.com> Link: https://lore.kernel.org/r/20220516131601.48383-1-chenjun102@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
* | perf/marvell_cn10k: Fix TAD PMU register offsetTanmay Jagdale2022-06-241-5/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | The existing offset of TAD_PRF and TAD_PFC registers are incorrect. Hence, fix with the right register offsets. Also, drop read of TAD_PRF register in tad_pmu_event_counter_start() since we don't have to preserve any bit fields and always write an updated value. Signed-off-by: Tanmay Jagdale <tanmay@marvell.com> Link: https://lore.kernel.org/r/20220614171356.773967-1-tanmay@marvell.com Signed-off-by: Will Deacon <will@kernel.org>
* | perf/marvell_cn10k: Remove useless license text when SPDX-License-Identifier ↵Christophe JAILLET2022-06-241-4/+0
| | | | | | | | | | | | | | | | | | | | | | is already used An SPDX-License-Identifier is already in place. There is no need to duplicate part of the corresponding license. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/4a8016a6da9cc6815cfa0f97ae8d3dd862797bda.1654936653.git.christophe.jaillet@wanadoo.fr Signed-off-by: Will Deacon <will@kernel.org>
* | perf/arm-cci: fix typo in commentJulia Lawall2022-06-231-1/+1
| | | | | | | | | | | | | | | | | | Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Link: https://lore.kernel.org/r/20220521111145.81697-67-Julia.Lawall@inria.fr Signed-off-by: Will Deacon <will@kernel.org>
* | drivers/perf:Directly use ida_alloc()/free()keliu2022-06-231-3/+3
| | | | | | | | | | | | | | | | | | Use ida_alloc()/ida_free() instead of deprecated ida_simple_get()/ida_simple_remove() . Signed-off-by: keliu <liuke94@huawei.com> Link: https://lore.kernel.org/r/20220519080127.147030-2-liuke94@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
* | drivers/perf: Directly use ida_alloc()/free()keliu2022-06-231-3/+3
|/ | | | | | | | | Use ida_alloc()/ida_free() instead of deprecated ida_simple_get()/ida_simple_remove() . Signed-off-by: keliu <liuke94@huawei.com> Link: https://lore.kernel.org/r/20220519080127.147030-1-liuke94@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
* Merge tag 'arm64-upstream' of ↵Linus Torvalds2022-05-2410-144/+920
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Catalin Marinas: - Initial support for the ARMv9 Scalable Matrix Extension (SME). SME takes the approach used for vectors in SVE and extends this to provide architectural support for matrix operations. No KVM support yet, SME is disabled in guests. - Support for crashkernel reservations above ZONE_DMA via the 'crashkernel=X,high' command line option. - btrfs search_ioctl() fix for live-lock with sub-page faults. - arm64 perf updates: support for the Hisilicon "CPA" PMU for monitoring coherent I/O traffic, support for Arm's CMN-650 and CMN-700 interconnect PMUs, minor driver fixes, kerneldoc cleanup. - Kselftest updates for SME, BTI, MTE. - Automatic generation of the system register macros from a 'sysreg' file describing the register bitfields. - Update the type of the function argument holding the ESR_ELx register value to unsigned long to match the architecture register size (originally 32-bit but extended since ARMv8.0). - stacktrace cleanups. - ftrace cleanups. - Miscellaneous updates, most notably: arm64-specific huge_ptep_get(), avoid executable mappings in kexec/hibernate code, drop TLB flushing from get_clear_flush() (and rename it to get_clear_contig()), ARCH_NR_GPIO bumped to 2048 for ARCH_APPLE. * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (145 commits) arm64/sysreg: Generate definitions for FAR_ELx arm64/sysreg: Generate definitions for DACR32_EL2 arm64/sysreg: Generate definitions for CSSELR_EL1 arm64/sysreg: Generate definitions for CPACR_ELx arm64/sysreg: Generate definitions for CONTEXTIDR_ELx arm64/sysreg: Generate definitions for CLIDR_EL1 arm64/sve: Move sve_free() into SVE code section arm64: Kconfig.platforms: Add comments arm64: Kconfig: Fix indentation and add comments arm64: mm: avoid writable executable mappings in kexec/hibernate code arm64: lds: move special code sections out of kernel exec segment arm64/hugetlb: Implement arm64 specific huge_ptep_get() arm64/hugetlb: Use ptep_get() to get the pte value of a huge page arm64: kdump: Do not allocate crash low memory if not needed arm64/sve: Generate ZCR definitions arm64/sme: Generate defintions for SVCR arm64/sme: Generate SMPRI_EL1 definitions arm64/sme: Automatically generate SMPRIMAP_EL2 definitions arm64/sme: Automatically generate SMIDR_EL1 defines arm64/sme: Automatically generate defines for SMCR ...
| * perf/arm-cmn: Decode CAL devices properly in debugfsRobin Murphy2022-05-121-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The debugfs code is lazy, and since it only keeps the bottom byte of each connect_info register to save space, it also treats the whole thing as the device_type since the other bits were reserved anyway. Upon closer inspection, though, this is no longer true on newer IP versions, so let's be good and decode the exact field properly. This should help it not get confused when a Component Aggregation Layer is present (which is already implied if Node IDs are found for both device addresses represented by the next two lines of the table). Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/6a13a6128a28cfe2eec6d09cf372a167ec9c3b65.1652274773.git.robin.murphy@arm.com Signed-off-by: Will Deacon <will@kernel.org>
| * perf/arm-cmn: Fix filter_sel lookupRobin Murphy2022-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | Carefully considering the bounds of an array is all well and good, until you forget that that array also contains a NULL sentinel at the end and dereference it. So close... Reported-by: Qian Cai <quic_qiancai@quicinc.com> Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/bebba768156aa3c0757140457bdd0fec10819388.1652217788.git.robin.murphy@arm.com Signed-off-by: Will Deacon <will@kernel.org>
| * perf/marvell_cn10k: Fix tad_pmu_event_init() to check pmu type firstTanmay Jagdale2022-05-101-3/+3
| | | | | | | | | | | | | | | | | | | | Make sure to check the pmu type first and then check event->attr.disabled. Doing so would avoid reading the disabled attribute of an event that is not handled by TAD PMU. Signed-off-by: Tanmay Jagdale <tanmay@marvell.com> Link: https://lore.kernel.org/r/20220510102657.487539-1-tanmay@marvell.com Signed-off-by: Will Deacon <will@kernel.org>
| * drivers/perf: hisi: Add Support for CPA PMUQi Liu2022-05-062-1/+410
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On HiSilicon Hip09 platform, there is a CPA (Coherency Protocol Agent) on each SICL (Super IO Cluster) which implements packet format translation, route parsing and traffic statistics. CPA PMU has 8 PMU counters and interrupt is supported to handle counter overflow. Let's support its driver under the framework of HiSilicon PMU driver. Signed-off-by: Qi Liu <liuqi115@huawei.com> Reviewed-by: John Garry <john.garry@huawei.com> Reviewed-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Link: https://lore.kernel.org/r/20220415102352.6665-3-liuqi115@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
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