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2020-12-24tools kvm headers: Update KVM headers from the kernel sourcesArnaldo Carvalho de Melo1-3/+0
To pick the changes from: 8d14797b53f044fd ("KVM: arm64: Move 'struct kvm_arch_memory_slot' out of uapi/") That don't causes any changes in tooling, only addresses this perf build warning: Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h' diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h Cc: Marc Zyngier <[email protected]> Cc: Will Deacon <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-24tools headers UAPI: Sync KVM's vmx.h header with the kernel sourcesArnaldo Carvalho de Melo1-0/+2
To pick the changes in: bf0cd88ce363a2de ("KVM: x86: emulate wait-for-SIPI and SIPI-VMExit") That makes 'perf kvm-stat' aware of this new SIPI_SIGNAL exit reason, thus addressing the following perf build warning: Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h' diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Yadong Qi <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-24tools headers UAPI: Sync kvm.h headers with the kernel sourcesArnaldo Carvalho de Melo2-1/+56
To pick the changes in: fb04a1eddb1a65b6 ("KVM: X86: Implement ring-based dirty memory tracking") That result in these change in tooling: $ tools/perf/trace/beauty/kvm_ioctl.sh > before $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h $ cp arch/x86/include/uapi/asm/kvm.h tools/arch/x86/include/uapi/asm/kvm.h $ tools/perf/trace/beauty/kvm_ioctl.sh > after $ diff -u before after --- before 2020-12-21 11:55:45.229737066 -0300 +++ after 2020-12-21 11:55:56.379983393 -0300 @@ -90,6 +90,7 @@ [0xc0] = "CLEAR_DIRTY_LOG", [0xc1] = "GET_SUPPORTED_HV_CPUID", [0xc6] = "X86_SET_MSR_FILTER", + [0xc7] = "RESET_DIRTY_RINGS", [0xe0] = "CREATE_DEVICE", [0xe1] = "SET_DEVICE_ATTR", [0xe2] = "GET_DEVICE_ATTR", $ Now one can use that string in filters when tracing ioctls, etc. And silences this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h' diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h' diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Peter Xu <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-24tools arch x86: Sync the msr-index.h copy with the kernel sourcesArnaldo Carvalho de Melo2-1/+2
To pick up the changes in: Fixes: 69372cf01290b958 ("x86/cpu: Add VM page flush MSR availablility as a CPUID feature") That cause these changes in tooling: $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after $ diff -u before after --- before 2020-12-21 09:09:05.593005003 -0300 +++ after 2020-12-21 09:12:48.436994802 -0300 @@ -21,7 +21,7 @@ [0x0000004f] = "PPIN", [0x00000060] = "LBR_CORE_TO", [0x00000079] = "IA32_UCODE_WRITE", - [0x0000008b] = "IA32_UCODE_REV", + [0x0000008b] = "AMD64_PATCH_LEVEL", [0x0000008C] = "IA32_SGXLEPUBKEYHASH0", [0x0000008D] = "IA32_SGXLEPUBKEYHASH1", [0x0000008E] = "IA32_SGXLEPUBKEYHASH2", @@ -286,6 +286,7 @@ [0xc0010114 - x86_AMD_V_KVM_MSRs_offset] = "VM_CR", [0xc0010115 - x86_AMD_V_KVM_MSRs_offset] = "VM_IGNNE", [0xc0010117 - x86_AMD_V_KVM_MSRs_offset] = "VM_HSAVE_PA", + [0xc001011e - x86_AMD_V_KVM_MSRs_offset] = "AMD64_VM_PAGE_FLUSH", [0xc001011f - x86_AMD_V_KVM_MSRs_offset] = "AMD64_VIRT_SPEC_CTRL", [0xc0010130 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SEV_ES_GHCB", [0xc0010131 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SEV", $ The new MSR has a pattern that wasn't matched to avoid a clash with IA32_UCODE_REV, change the regex to prefer the more relevant AMD_ prefixed ones to catch this new AMD64_VM_PAGE_FLUSH MSR. Which causes these parts of tools/perf/ to be rebuilt: CC /tmp/build/perf/trace/beauty/tracepoints/x86_msr.o LD /tmp/build/perf/trace/beauty/tracepoints/perf-in.o LD /tmp/build/perf/trace/beauty/perf-in.o LD /tmp/build/perf/perf-in.o LINK /tmp/build/perf/perf This addresses this perf tools build warning: diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h' Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Tom Lendacky <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-24tools headers cpufeatures: Sync with the kernel sourcesArnaldo Carvalho de Melo1-0/+2
To pick the changes in: 69372cf01290b958 ("x86/cpu: Add VM page flush MSR availablility as a CPUID feature") e1b35da5e624f8b0 ("x86: Enumerate AVX512 FP16 CPUID feature flag") That causes only these 'perf bench' objects to rebuild: CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o And addresses these perf build warnings: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h' diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kyung Min Park <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Tom Lendacky <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-24tools headers UAPI: Update epoll_pwait2 affected filesArnaldo Carvalho de Melo2-1/+4
To pick the changes from: b0a0c2615f6f199a ("epoll: wire up syscall epoll_pwait2") That addresses these perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h' diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl' diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Willem de Bruijn <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-24selftests/bpf: Work-around EBUSY errors from hashmap update/deleteAndrii Nakryiko1-6/+42
20b6cc34ea74 ("bpf: Avoid hashtab deadlock with map_locked") introduced a possibility of getting EBUSY error on lock contention, which seems to happen very deterministically in test_maps when running 1024 threads on low-CPU machine. In libbpf CI case, it's a 2 CPU VM and it's hitting this 100% of the time. Work around by retrying on EBUSY (and EAGAIN, while we are at it) after a small sleep. sched_yield() is too agressive and fails even after 20 retries, so I went with usleep(1) for backoff. Also log actual error returned to make it easier to see what's going on. Fixes: 20b6cc34ea74 ("bpf: Avoid hashtab deadlock with map_locked") Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Song Liu <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-12-22Merge tag 'kbuild-v5.11' of ↵Linus Torvalds12-12/+12
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - Use /usr/bin/env for shebang lines in scripts - Remove useless -Wnested-externs warning flag - Update documents - Refactor log handling in modpost - Stop building modules without MODULE_LICENSE() tag - Make the insane combination of 'static' and EXPORT_SYMBOL an error - Improve genksyms to handle _Static_assert() * tag 'kbuild-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: Documentation/kbuild: Document platform dependency practises Documentation/kbuild: Document COMPILE_TEST dependencies genksyms: Ignore module scoped _Static_assert() modpost: turn static exports into error modpost: turn section mismatches to error from fatal() modpost: change license incompatibility to error() from fatal() modpost: turn missing MODULE_LICENSE() into error modpost: refactor error handling and clarify error/fatal difference modpost: rename merror() to error() kbuild: don't hardcode depmod path kbuild: doc: document subdir-y syntax kbuild: doc: clarify the difference between extra-y and always-y kbuild: doc: split if_changed explanation to a separate section kbuild: doc: merge 'Special Rules' and 'Custom kbuild commands' sections kbuild: doc: fix 'List directories to visit when descending' section kbuild: doc: replace arch/$(ARCH)/ with arch/$(SRCARCH)/ kbuild: doc: update the description about kbuild Makefiles Makefile.extrawarn: remove -Wnested-externs warning tweewide: Fix most Shebang lines
2020-12-22Merge branch 'akpm' (patches from Andrew)Linus Torvalds2-1/+155
Merge KASAN updates from Andrew Morton. This adds a new hardware tag-based mode to KASAN. The new mode is similar to the existing software tag-based KASAN, but relies on arm64 Memory Tagging Extension (MTE) to perform memory and pointer tagging (instead of shadow memory and compiler instrumentation). By Andrey Konovalov and Vincenzo Frascino. * emailed patches from Andrew Morton <[email protected]>: (60 commits) kasan: update documentation kasan, mm: allow cache merging with no metadata kasan: sanitize objects when metadata doesn't fit kasan: clarify comment in __kasan_kfree_large kasan: simplify assign_tag and set_tag calls kasan: don't round_up too much kasan, mm: rename kasan_poison_kfree kasan, mm: check kasan_enabled in annotations kasan: add and integrate kasan boot parameters kasan: inline (un)poison_range and check_invalid_free kasan: open-code kasan_unpoison_slab kasan: inline random_tag for HW_TAGS kasan: inline kasan_reset_tag for tag-based modes kasan: remove __kasan_unpoison_stack kasan: allow VMAP_STACK for HW_TAGS mode kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK kasan: introduce set_alloc_info kasan: rename get_alloc/free_info kasan: simplify quarantine_put call site kselftest/arm64: check GCR_EL1 after context switch ...
2020-12-22Merge tag 'dma-mapping-5.11' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds3-0/+130
Pull dma-mapping updates from Christoph Hellwig: - support for a partial IOMMU bypass (Alexey Kardashevskiy) - add a DMA API benchmark (Barry Song) - misc fixes (Tiezhu Yang, tangjianqiang) * tag 'dma-mapping-5.11' of git://git.infradead.org/users/hch/dma-mapping: selftests/dma: add test application for DMA_MAP_BENCHMARK dma-mapping: add benchmark support for streaming DMA APIs dma-contiguous: fix a typo error in a comment dma-pool: no need to check return value of debugfs_create functions powerpc/dma: Fallback to dma_ops when persistent memory present dma-mapping: Allow mixing bypass and mapped DMA operation
2020-12-22kselftest/arm64: check GCR_EL1 after context switchVincenzo Frascino2-1/+155
This test is specific to MTE and verifies that the GCR_EL1 register is context switched correctly. It spawns 1024 processes and each process spawns 5 threads. Each thread writes a random setting of GCR_EL1 through the prctl() system call and reads it back verifying that it is the same. If the values are not the same it reports a failure. Note: The test has been extended to verify that even SYNC and ASYNC mode setting is preserved correctly over context switching. Link: https://lkml.kernel.org/r/b51a165426e906e7ec8a68d806ef3f8cd92581a6.1606161801.git.andreyknvl@google.com Signed-off-by: Vincenzo Frascino <[email protected]> Signed-off-by: Andrey Konovalov <[email protected]> Acked-by: Catalin Marinas <[email protected]> Tested-by: Vincenzo Frascino <[email protected]> Cc: Alexander Potapenko <[email protected]> Cc: Andrey Ryabinin <[email protected]> Cc: Branislav Rankov <[email protected]> Cc: Dmitry Vyukov <[email protected]> Cc: Evgenii Stepanov <[email protected]> Cc: Kevin Brodsky <[email protected]> Cc: Marco Elver <[email protected]> Cc: Vasily Gorbik <[email protected]> Cc: Will Deacon <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2020-12-20Merge tag 'perf-tools-2020-12-19' of ↵Linus Torvalds167-5873/+7608
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools updates from Arnaldo Carvalho de Melo: "perf record: - Fix memory leak when using '--user-regs=?' to list registers aarch64 support: - Add aarch64 registers to 'perf record's' --user-regs command line option aarch64 hw tracing support: - Decode memory tagging properties - Improve ARM's auxtrace support - Add support for ARMv8.3-SPE perf kvm: - Add kvm-stat for arm64 perf stat: - Add --quiet option Cleanups: - Fixup function names wrt what is in libperf and what is in tools/perf Build: - Allow building without libbpf in older systems New kernel features: - Initial support for data/code page size sample type, more to come perf annotate: - Support MIPS instruction extended support perf stack unwinding: - Fix separate debug info files when using elfutils' libdw's unwinder perf vendor events: - Update Intel's Skylake client events to v50 - Add JSON metrics for ARM's imx8mm DDR Perf - Support printing metric groups for system PMUs perf build id: - Prep work for supporting having the build id provided by the kernel in PERF_RECORD_MMAP2 metadata events perf stat: - Support regex pattern in --for-each-cgroup pipe mode: - Allow to use stdio functions for pipe mode - Support 'perf report's' --header-only for pipe mode - Support pipe mode display in 'perf evlist' Documentation: - Update information about CAP_PERFMON" * tag 'perf-tools-2020-12-19' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (134 commits) perf mem: Factor out a function to generate sort order perf sort: Add sort option for data page size perf script: Support data page size tools headers UAPI: Update asm-generic/unistd.h tools headers cpufeatures: Sync with the kernel sources tools headers UAPI: Sync linux/prctl.h with the kernel sources tools headers UAPI: Sync linux/fscrypt.h with the kernel sources tools headers UAPI: Sync linux/const.h with the kernel headers tools arch x86: Sync the msr-index.h copy with the kernel sources perf trace beauty: Update copy of linux/socket.h with the kernel sources tools headers: Update linux/ctype.h with the kernel sources tools headers: Add conditional __has_builtin() tools headers: Get tools's linux/compiler.h closer to the kernel's tools headers UAPI: Sync linux/stat.h with the kernel sources tools headers: Syncronize linux/build_bug.h with the kernel sources perf tools: Reformat record's control fd man text perf config: Fix example command in manpage to conform to syntax specified in the SYNOPSIS section. perf test: Make sample-parsing test aware of PERF_SAMPLE_{CODE,DATA}_PAGE_SIZE perf tools: Add support to read build id from compressed elf perf debug: Add debug_set_file function ...
2020-12-20Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds36-465/+1643
Pull KVM updates from Paolo Bonzini: "Much x86 work was pushed out to 5.12, but ARM more than made up for it. ARM: - PSCI relay at EL2 when "protected KVM" is enabled - New exception injection code - Simplification of AArch32 system register handling - Fix PMU accesses when no PMU is enabled - Expose CSV3 on non-Meltdown hosts - Cache hierarchy discovery fixes - PV steal-time cleanups - Allow function pointers at EL2 - Various host EL2 entry cleanups - Simplification of the EL2 vector allocation s390: - memcg accouting for s390 specific parts of kvm and gmap - selftest for diag318 - new kvm_stat for when async_pf falls back to sync x86: - Tracepoints for the new pagetable code from 5.10 - Catch VFIO and KVM irqfd events before userspace - Reporting dirty pages to userspace with a ring buffer - SEV-ES host support - Nested VMX support for wait-for-SIPI activity state - New feature flag (AVX512 FP16) - New system ioctl to report Hyper-V-compatible paravirtualization features Generic: - Selftest improvements" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (171 commits) KVM: SVM: fix 32-bit compilation KVM: SVM: Add AP_JUMP_TABLE support in prep for AP booting KVM: SVM: Provide support to launch and run an SEV-ES guest KVM: SVM: Provide an updated VMRUN invocation for SEV-ES guests KVM: SVM: Provide support for SEV-ES vCPU loading KVM: SVM: Provide support for SEV-ES vCPU creation/loading KVM: SVM: Update ASID allocation to support SEV-ES guests KVM: SVM: Set the encryption mask for the SVM host save area KVM: SVM: Add NMI support for an SEV-ES guest KVM: SVM: Guest FPU state save/restore not needed for SEV-ES guest KVM: SVM: Do not report support for SMM for an SEV-ES guest KVM: x86: Update __get_sregs() / __set_sregs() to support SEV-ES KVM: SVM: Add support for CR8 write traps for an SEV-ES guest KVM: SVM: Add support for CR4 write traps for an SEV-ES guest KVM: SVM: Add support for CR0 write traps for an SEV-ES guest KVM: SVM: Add support for EFER write traps for an SEV-ES guest KVM: SVM: Support string IO operations for an SEV-ES guest KVM: SVM: Support MMIO for an SEV-ES guest KVM: SVM: Create trace events for VMGEXIT MSR protocol processing KVM: SVM: Create trace events for VMGEXIT processing ...
2020-12-19Merge tag 'close-range-cloexec-unshare-v5.11' of ↵Linus Torvalds1-6/+275
git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux Pull close_range fix from Christian Brauner: "syzbot reported a bug when asking close_range() to unshare the file descriptor table and making all fds close-on-exec. If CLOSE_RANGE_UNSHARE the caller will receive a private file descriptor table in case their file descriptor table is currently shared before operating on the requested file descriptor range. For the case where the caller has requested all file descriptors to be actually closed via e.g. close_range(3, ~0U, CLOSE_RANGE_UNSHARE) the kernel knows that the caller does not need any of the file descriptors anymore and will optimize the close operation by only copying all files in the range from 0 to 3 and no others. However, if the caller requested CLOSE_RANGE_CLOEXEC together with CLOSE_RANGE_UNSHARE the caller wants to still make use of the file descriptors so the kernel needs to copy all of them and can't optimize. The original patch didn't account for this and thus could cause oopses as evidenced by the syzbot report because it assumed that all fds had been copied. Fix this by handling the CLOSE_RANGE_CLOEXEC case and copying all fds if the two flags are specified together. This should've been caught in the selftests but the original patch didn't cover this case and I didn't catch it during review. So in addition to the bugfix I'm also adding selftests. They will reliably reproduce the bug on a non-fixed kernel and allows us to catch regressions and verify correct behavior. Note, the kernel selftest tree contained a bunch of changes that made the original selftest fail to compile so there are small fixups in here make them compile without warnings" * tag 'close-range-cloexec-unshare-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: selftests/core: add regression test for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC selftests/core: add test for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC selftests/core: handle missing syscall number for close_range selftests/core: fix close_range_test build after XFAIL removal close_range: unshare all fds for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXEC
2020-12-19perf mem: Factor out a function to generate sort orderKan Liang1-14/+27
Now, "--phys-data" is the only option which impacts the sort order. A simple "if else" is enough to handle the option. But there will be more options added, e.g. "--data-page-size", which also impact the sort order. The code will become too complex to be maintained. Divide the sort order string into several small pieces. The first piece is always the default sort string for LOAD/STORE. Appends the specific sort string if related option is applied. No functional change. Signed-off-by: Kan Liang <[email protected]> Acked-by: Jiri Olsa <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Will Deacon <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-19perf sort: Add sort option for data page sizeKan Liang7-2/+42
Add a new sort option "data_page_size" for --mem-mode sort. With this option applied, perf can sort and report by sample's data page size. Here is an example: perf report --stdio --mem-mode --sort=comm,symbol,phys_daddr,data_page_size # To display the perf.data header info, please use # --header/--header-only options. # # # Total Lost Samples: 0 # # Samples: 9K of event 'mem-loads:uP' # Total weight : 9028 # Sort order : comm,symbol,phys_daddr,data_page_size # # Overhead Command Symbol Data Physical # Address # Data Page Size # ........ ....... ............................ # ...................... ...................... # 11.19% dtlb [.] touch_buffer [.] 0x00000003fec82ea8 4K 8.61% dtlb [.] GetTickCount [.] 0x00000003c4f2c8a8 4K 4.52% dtlb [.] GetTickCount [.] 0x00000003fec82f58 4K 4.33% dtlb [.] __gettimeofday [.] 0x00000003fec82f48 4K 4.32% dtlb [.] GetTickCount [.] 0x00000003fec82f78 4K 4.28% dtlb [.] GetTickCount [.] 0x00000003fec82f50 4K 4.23% dtlb [.] GetTickCount [.] 0x00000003fec82f70 4K 4.11% dtlb [.] GetTickCount [.] 0x00000003fec82f68 4K 4.00% dtlb [.] Calibrate [.] 0x00000003fec82f98 4K 3.91% dtlb [.] Calibrate [.] 0x00000003fec82f90 4K 3.43% dtlb [.] touch_buffer [.] 0x00000003fec82e98 4K 3.42% dtlb [.] touch_buffer [.] 0x00000003fec82e90 4K 0.09% dtlb [.] DoDependentLoads [.] 0x000000036ea084c0 2M 0.08% dtlb [.] DoDependentLoads [.] 0x000000032b010b80 2M Signed-off-by: Kan Liang <[email protected]> Acked-by: Jiri Olsa <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Will Deacon <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-19perf script: Support data page sizeKan Liang4-4/+34
Display the data page size if it is available and asked by the user: Can be configured by the user, for example: perf script --fields comm,event,phys_addr,data_page_size dtlb mem-loads:uP: 3fec82ea8 4K dtlb mem-loads:uP: 3fec82e90 4K dtlb mem-loads:uP: 3e23700a4 4K dtlb mem-loads:uP: 3fec82f20 4K dtlb mem-loads:uP: 3e23700a4 4K dtlb mem-loads:uP: 3b4211bec 4K dtlb mem-loads:uP: 382205dc0 2M dtlb mem-loads:uP: 36fa082c0 2M dtlb mem-loads:uP: 377607340 2M dtlb mem-loads:uP: 330010180 2M dtlb mem-loads:uP: 33200fd80 2M dtlb mem-loads:uP: 31b012b80 2M Signed-off-by: Kan Liang <[email protected]> Acked-by: Jiri Olsa <[email protected]> Acked-by: Namhyung Kim <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Will Deacon <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-19Merge branch 'akpm' (patches from Andrew)Linus Torvalds1-0/+72
Merge still more updates from Andrew Morton: "18 patches. Subsystems affected by this patch series: mm (memcg and cleanups) and epoll" * emailed patches from Andrew Morton <[email protected]>: mm/Kconfig: fix spelling mistake "whats" -> "what's" selftests/filesystems: expand epoll with epoll_pwait2 epoll: wire up syscall epoll_pwait2 epoll: add syscall epoll_pwait2 epoll: convert internal api to timespec64 epoll: eliminate unnecessary lock for zero timeout epoll: replace gotos with a proper loop epoll: pull all code between fetch_events and send_event into the loop epoll: simplify and optimize busy loop logic epoll: move eavail next to the list_empty_careful check epoll: pull fatal signal checks into ep_send_events() epoll: simplify signal handling epoll: check for events when removing a timed out thread from the wait queue mm/memcontrol:rewrite mem_cgroup_page_lruvec() mm, kvm: account kvm_vcpu_mmap to kmemcg mm/memcg: remove unused definitions mm/memcg: warning on !memcg after readahead page charged mm/memcg: bail early from swap accounting if memcg disabled
2020-12-19selftests/filesystems: expand epoll with epoll_pwait2Willem de Bruijn1-0/+72
Code coverage for the epoll_pwait2 syscall. epoll62: Repeat basic test epoll1, but exercising the new syscall. epoll63: Pass a timespec and exercise the timeout wakeup path. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Willem de Bruijn <[email protected]> Cc: Al Viro <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Matthew Wilcox (Oracle) <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2020-12-19selftests/core: add regression test for CLOSE_RANGE_UNSHARE | ↵Christian Brauner1-0/+183
CLOSE_RANGE_CLOEXEC This test is a minimalized version of the reproducer given by syzbot (cf. [1]). After introducing CLOSE_RANGE_CLOEXEC syzbot reported a crash when CLOSE_RANGE_CLOEXEC is specified in conjunction with CLOSE_RANGE_UNSHARE. When CLOSE_RANGE_UNSHARE is specified the caller will receive a private file descriptor table in case their file descriptor table is currently shared. For the case where the caller has requested all file descriptors to be actually closed via e.g. close_range(3, ~0U, 0) the kernel knows that the caller does not need any of the file descriptors anymore and will optimize the close operation by only copying all files in the range from 0 to 3 and no others. However, if the caller requested CLOSE_RANGE_CLOEXEC together with CLOSE_RANGE_UNSHARE the caller wants to still make use of the file descriptors so the kernel needs to copy all of them and can't optimize. The original patch didn't account for this and thus could cause oopses as evidenced by the syzbot report. Add tests for this regression. We first create a huge gap in the fd table. When we now call CLOSE_RANGE_UNSHARE with a shared fd table and and with ~0U as upper bound the kernel will only copy up to fd1 file descriptors into the new fd table. If the kernel is buggy and doesn't handle CLOSE_RANGE_CLOEXEC correctly it will not have copied all file descriptors and we will oops! This test passes on a fixed kernel and will trigger an oops on a buggy kernel. [1]: https://syzkaller.appspot.com/text?tag=KernelConfig&x=db720fe37a6a41d8 Cc: Giuseppe Scrivano <[email protected]> Cc: [email protected] Link: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Christian Brauner <[email protected]>
2020-12-19selftests/core: add test for CLOSE_RANGE_UNSHARE | CLOSE_RANGE_CLOEXECChristian Brauner1-0/+70
Add a test to verify that CLOSE_RANGE_UNSHARE works correctly when combined with CLOSE_RANGE_CLOEXEC for the single-threaded case. Cc: Giuseppe Scrivano <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Christian Brauner <[email protected]>
2020-12-19selftests/core: handle missing syscall number for close_rangeChristian Brauner1-1/+17
This improves the syscall number handling in the close_range() selftests. This should handle any architecture. Cc: Giuseppe Scrivano <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Christian Brauner <[email protected]>
2020-12-19selftests/core: fix close_range_test build after XFAIL removalTobias Klauser1-5/+5
XFAIL was removed in commit 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP") and its use in close_range_test was already replaced by commit 1d44d0dd61b6 ("selftests: core: use SKIP instead of XFAIL in close_range_test.c"). However, commit 23afeaeff3d9 ("selftests: core: add tests for CLOSE_RANGE_CLOEXEC") introduced usage of XFAIL in TEST(close_range_cloexec). Use SKIP there as well. Fixes: 23afeaeff3d9 ("selftests: core: add tests for CLOSE_RANGE_CLOEXEC") Cc: Giuseppe Scrivano <[email protected]> Cc: [email protected] Signed-off-by: Tobias Klauser <[email protected]> Acked-by: Christian Brauner <[email protected]> Link: https://lore.kernel.org/r/[email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Christian Brauner <[email protected]>
2020-12-18tools/virtio: add barrier for aarch64Peng Fan1-0/+10
Add barrier for aarch64 for cross compiling, and most are from Linux Kernel. Signed-off-by: Peng Fan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Michael S. Tsirkin <[email protected]>
2020-12-18tools/virtio: add krealloc_arrayPeng Fan1-2/+11
krealloc_array is used in drivers/vhost/vringh.c, add it to avoid build failure. Drop WARN_ON_ONCE, because duplicated with the one in bug.h Signed-off-by: Peng Fan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Michael S. Tsirkin <[email protected]>
2020-12-18tools/virtio: include asm/bug.hPeng Fan1-0/+2
WARN_ON is used in drivers/vhost/vringh.c, to avoid build failure, need include asm/bug.h Signed-off-by: Peng Fan <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Michael S. Tsirkin <[email protected]>
2020-12-18Merge tag 'ktest-v5.11' of ↵Linus Torvalds1-8/+12
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest Pull ktest updates from Steven Rostedt: "No new features. Just a couple of fixes that I had in my local repository that fixed issues with sending the result emails" * tag 'ktest-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest.pl: Fix the logic for truncating the size of the log file for email ktest.pl: If size of log is too big to email, email error message
2020-12-18tools headers UAPI: Update asm-generic/unistd.hArnaldo Carvalho de Melo1-1/+1
Just a comment change, trivial. Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-18tools headers cpufeatures: Sync with the kernel sourcesArnaldo Carvalho de Melo2-1/+9
To pick the changes in: e7b6385b01d8e9fb ("x86/cpufeatures: Add Intel SGX hardware bits") That causes only these 'perf bench' objects to rebuild: CC /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o CC /tmp/build/perf/bench/mem-memset-x86-64-asm.o And addresses these perf build warnings: Warning: Kernel ABI header at 'tools/arch/x86/include/asm/disabled-features.h' differs from latest version at 'arch/x86/include/asm/disabled-features.h' diff -u tools/arch/x86/include/asm/disabled-features.h arch/x86/include/asm/disabled-features.h Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h' diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Sean Christopherson <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-18tools headers UAPI: Sync linux/prctl.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+5
To pick a new prctl introduced in: 1446e1df9eb183fd ("kernel: Implement selective syscall userspace redirection") That results in: $ tools/perf/trace/beauty/prctl_option.sh > before $ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h $ tools/perf/trace/beauty/prctl_option.sh > after $ diff -u before after --- before 2020-12-17 15:00:42.012537367 -0300 +++ after 2020-12-17 15:00:49.832699463 -0300 @@ -53,6 +53,7 @@ [56] = "GET_TAGGED_ADDR_CTRL", [57] = "SET_IO_FLUSHER", [58] = "GET_IO_FLUSHER", + [59] = "SET_SYSCALL_USER_DISPATCH", }; static const char *prctl_set_mm_options[] = { [1] = "START_CODE", $ Now users can do: # perf trace -e syscalls:sys_enter_prctl --filter "option==SET_SYSCALL_USER_DISPATCH" ^C# # trace -v -e syscalls:sys_enter_prctl --filter "option==SET_SYSCALL_USER_DISPATCH" New filter for syscalls:sys_enter_prctl: (option==0x3b) && (common_pid != 5519 && common_pid != 3404) ^C# And also when prctl appears in a session, its options will be translated to the string. Cc: Adrian Hunter <[email protected]> Cc: Gabriel Krisman Bertazi <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-18tools headers UAPI: Sync linux/fscrypt.h with the kernel sourcesArnaldo Carvalho de Melo1-3/+2
To pick the changes from: 3ceb6543e9cf6ed8 ("fscrypt: remove kernel-internal constants from UAPI header") That don't result in any changes in tooling, just addressing this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/fscrypt.h' differs from latest version at 'include/uapi/linux/fscrypt.h' diff -u tools/include/uapi/linux/fscrypt.h include/uapi/linux/fscrypt.h Cc: Adrian Hunter <[email protected]> Cc: Eric Biggers <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-18tools headers UAPI: Sync linux/const.h with the kernel headersArnaldo Carvalho de Melo1-0/+5
To pick up the changes in: a85cbe6159ffc973 ("uapi: move constants from <linux/kernel.h> to <linux/const.h>") That causes no changes in tooling, just addresses this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/const.h' differs from latest version at 'include/uapi/linux/const.h' diff -u tools/include/uapi/linux/const.h include/uapi/linux/const.h Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Petr Vorel <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-18tools arch x86: Sync the msr-index.h copy with the kernel sourcesArnaldo Carvalho de Melo1-1/+11
To pick up the changes in: d205e0f1426e0f99 ("x86/{cpufeatures,msr}: Add Intel SGX Launch Control hardware bits") e7b6385b01d8e9fb ("x86/cpufeatures: Add Intel SGX hardware bits") 43756a298928c9a4 ("powercap: Add AMD Fam17h RAPL support") 298ed2b31f552806 ("x86/msr-index: sort AMD RAPL MSRs by address") 68299a42f8428853 ("x86/mce: Enable additional error logging on certain Intel CPUs") That cause these changes in tooling: $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after $ diff -u before after --- before 2020-12-17 14:45:49.036994450 -0300 +++ after 2020-12-17 14:46:01.654256639 -0300 @@ -22,6 +22,10 @@ [0x00000060] = "LBR_CORE_TO", [0x00000079] = "IA32_UCODE_WRITE", [0x0000008b] = "IA32_UCODE_REV", + [0x0000008C] = "IA32_SGXLEPUBKEYHASH0", + [0x0000008D] = "IA32_SGXLEPUBKEYHASH1", + [0x0000008E] = "IA32_SGXLEPUBKEYHASH2", + [0x0000008F] = "IA32_SGXLEPUBKEYHASH3", [0x0000009b] = "IA32_SMM_MONITOR_CTL", [0x0000009e] = "IA32_SMBASE", [0x000000c1] = "IA32_PERFCTR0", @@ -59,6 +63,7 @@ [0x00000179] = "IA32_MCG_CAP", [0x0000017a] = "IA32_MCG_STATUS", [0x0000017b] = "IA32_MCG_CTL", + [0x0000017f] = "ERROR_CONTROL", [0x00000180] = "IA32_MCG_EAX", [0x00000181] = "IA32_MCG_EBX", [0x00000182] = "IA32_MCG_ECX", @@ -294,6 +299,7 @@ [0xc0010241 - x86_AMD_V_KVM_MSRs_offset] = "F15H_NB_PERF_CTR", [0xc0010280 - x86_AMD_V_KVM_MSRs_offset] = "F15H_PTSC", [0xc0010299 - x86_AMD_V_KVM_MSRs_offset] = "AMD_RAPL_POWER_UNIT", + [0xc001029a - x86_AMD_V_KVM_MSRs_offset] = "AMD_CORE_ENERGY_STATUS", [0xc001029b - x86_AMD_V_KVM_MSRs_offset] = "AMD_PKG_ENERGY_STATUS", [0xc00102f0 - x86_AMD_V_KVM_MSRs_offset] = "AMD_PPIN_CTL", [0xc00102f1 - x86_AMD_V_KVM_MSRs_offset] = "AMD_PPIN", $ Which causes these parts of tools/perf/ to be rebuilt: CC /tmp/build/perf/trace/beauty/tracepoints/x86_msr.o LD /tmp/build/perf/trace/beauty/tracepoints/perf-in.o LD /tmp/build/perf/trace/beauty/perf-in.o LD /tmp/build/perf/perf-in.o LINK /tmp/build/perf/perf At some point these should just be tables read by perf on demand. This allows 'perf trace' users to use those strings to translate from the msr ids provided by the msr: tracepoints. This addresses this perf tools build warning: diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h' Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Rafael J. Wysocki <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Tony Luck <[email protected]> Cc: Victor Ding <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-18perf trace beauty: Update copy of linux/socket.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+1
This just triggers the rebuilding of the syscall beautifiers that extract patterns from this file due to this cset: b713c195d5933227 ("net: provide __sys_shutdown_sock() that takes a socket") After updating it: CC /tmp/build/perf/trace/beauty/sockaddr.o Addressing this perf build warning: Warning: Kernel ABI header at 'tools/perf/trace/beauty/include/linux/socket.h' differs from latest version at 'include/linux/socket.h' diff -u tools/perf/trace/beauty/include/linux/socket.h include/linux/socket.h Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-18tools headers: Update linux/ctype.h with the kernel sourcesArnaldo Carvalho de Melo1-5/+12
To pick up the changes in: caabdd0f59a9771e ("ctype.h: remove duplicate isdigit() helper") Addressing this perf build warning: Warning: Kernel ABI header at 'tools/include/linux/ctype.h' differs from latest version at 'include/linux/ctype.h' diff -u tools/include/linux/ctype.h include/linux/ctype.h And we need to continue using the combination of: inline __isdigit() #define isdigit() __isdigit When the __has_builtin() thing isn't available, as it is a builtin in older systems with it as a builtin but with compilers not hacinv __has_builtin(), rendering the __has_builtin() check useless otherwise. Cc: Adrian Hunter <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-18tools headers: Add conditional __has_builtin()Arnaldo Carvalho de Melo1-0/+11
As it'll be used by the ctype.h sync with its kernel source original. Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-18tools headers: Get tools's linux/compiler.h closer to the kernel'sArnaldo Carvalho de Melo2-3/+11
We're cherry picking stuff from the kernel to allow for the other headers that we keep in sync via tools/perf/check-headers.sh to work, so introduce linux/compiler_types.h and from there get the compiler specific stuff. Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-18selftests/bpf: Fix spelling mistake "tranmission" -> "transmission"Colin Ian King1-2/+2
There are two spelling mistakes in output messages. Fix these. Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Link: https://lore.kernel.org/bpf/[email protected]
2020-12-17Merge tag 'gpio-v5.11-1' of ↵Linus Torvalds2-1/+9
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO updates from Linus Walleij: "This is the bulk of the GPIO changes for the v5.11 kernel cycle: Core changes: - Retired the old set-up function for GPIO IRQ chips. All chips now use the template struct gpio_irq_chip and pass that to the core to be set up alongside the gpio_chip. We can finally get rid of the old cruft. - Some refactoring and clean up of the core code. - Support edge event timestamps to be stamped using REALTIME (wall clock) timestamps. We have found solid use cases for this, so we support it. New drivers: - MStar MSC313 GPIO driver. - HiSilicon GPIO driver. Driver improvements: - The PCA953x driver now also supports the NXP PCAL9554B/C chips. - The mockup driver can now be probed from the device tree which is pretty useful for virtual prototyping of devices. - The Rcar driver now supports .get_multiple() - The MXC driver dropped some legacy and became a pure device tree client. - The Exar driver was moved over to the IDA interface for enumerating, and also switched over to using regmap for register access" * tag 'gpio-v5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (87 commits) MAINTAINERS: Remove reference to non-existing file gpio: hisi: Do not require ACPI for COMPILE_TEST MAINTAINERS: Add maintainer for HiSilicon GPIO driver gpio: gpio-hisi: Add HiSilicon GPIO support gpio: cs5535: Simplify the return expression of cs5535_gpio_probe() gpiolib: irq hooks: fix recursion in gpiochip_irq_unmask dt-bindings: mt7621-gpio: convert bindings to YAML format gpiolib: cdev: Flag invalid GPIOs as used gpio: put virtual gpio device into their own submenu drivers: gpio: amd8111: use SPDX-License-Identifier drivers: gpio: amd8111: prefer dev_err()/dev_info() over raw printk drivers: gpio: bt8xx: prefer dev_err()/dev_warn() over of raw printk gpio: Add TODO item for debugfs interface gpio: just plain warning when nonexisting gpio requested tools: gpio: add option to report wall-clock time to gpio-event-mon tools: gpio: add support for reporting realtime event clock to lsgpio gpiolib: cdev: allow edge event timestamps to be configured as REALTIME gpio: msc313: MStar MSC313 GPIO driver dt-bindings: gpio: Binding for MStar MSC313 GPIO controller dt-bindings: gpio: Add a binding header for the MSC313 GPIO driver ...
2020-12-17Merge tag 'net-5.11-rc1' of ↵Linus Torvalds1-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Current release - always broken: - net/smc: fix access to parent of an ib device - devlink: use _BITUL() macro instead of BIT() in the UAPI header - handful of mptcp fixes Previous release - regressions: - intel: AF_XDP: clear the status bits for the next_to_use descriptor - dpaa2-eth: fix the size of the mapped SGT buffer Previous release - always broken: - mptcp: fix security context on server socket - ethtool: fix string set id check - ethtool: fix error paths in ethnl_set_channels() - lan743x: fix rx_napi_poll/interrupt ping-pong - qca: ar9331: fix sleeping function called from invalid context bug" * tag 'net-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (32 commits) net/sched: sch_taprio: reset child qdiscs before freeing them nfp: move indirect block cleanup to flower app stop callback octeontx2-af: Fix undetected unmap PF error check net: nixge: fix spelling mistake in Kconfig: "Instuments" -> "Instruments" qlcnic: Fix error code in probe mptcp: fix pending data accounting mptcp: push pending frames when subflow has free space mptcp: properly annotate nested lock mptcp: fix security context on server socket net/mlx5: Fix compilation warning for 32-bit platform mptcp: clear use_ack and use_map when dropping other suboptions devlink: use _BITUL() macro instead of BIT() in the UAPI header net: korina: fix return value net/smc: fix access to parent of an ib device ethtool: fix error paths in ethnl_set_channels() nfc: s3fwrn5: Remove unused NCI prop commands nfc: s3fwrn5: Remove the delay for NFC sleep phy: fix kdoc warning tipc: do sanity check payload of a netlink message use __netdev_notify_peers in hyperv ...
2020-12-17Merge tag 'powerpc-5.11-1' of ↵Linus Torvalds8-2/+10
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Switch to the generic C VDSO, as well as some cleanups of our VDSO setup/handling code. - Support for KUAP (Kernel User Access Prevention) on systems using the hashed page table MMU, using memory protection keys. - Better handling of PowerVM SMT8 systems where all threads of a core do not share an L2, allowing the scheduler to make better scheduling decisions. - Further improvements to our machine check handling. - Show registers when unwinding interrupt frames during stack traces. - Improvements to our pseries (PowerVM) partition migration code. - Several series from Christophe refactoring and cleaning up various parts of the 32-bit code. - Other smaller features, fixes & cleanups. Thanks to: Alan Modra, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Ard Biesheuvel, Athira Rajeev, Balamuruhan S, Bill Wendling, Cédric Le Goater, Christophe Leroy, Christophe Lombard, Colin Ian King, Daniel Axtens, David Hildenbrand, Frederic Barrat, Ganesh Goudar, Gautham R. Shenoy, Geert Uytterhoeven, Giuseppe Sacco, Greg Kurz, Harish, Jan Kratochvil, Jordan Niethe, Kaixu Xia, Laurent Dufour, Leonardo Bras, Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu Desnoyers, Nathan Lynch, Nicholas Piggin, Oleg Nesterov, Oliver O'Halloran, Oscar Salvador, Po-Hsu Lin, Qian Cai, Qinglang Miao, Randy Dunlap, Ravi Bangoria, Sachin Sant, Sandipan Das, Sebastian Andrzej Siewior , Segher Boessenkool, Srikar Dronamraju, Tyrel Datwyler, Uwe Kleine-König, Vincent Stehlé, Youling Tang, and Zhang Xiaoxu. * tag 'powerpc-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (304 commits) powerpc/32s: Fix cleanup_cpu_mmu_context() compile bug powerpc: Add config fragment for disabling -Werror powerpc/configs: Add ppc64le_allnoconfig target powerpc/powernv: Rate limit opal-elog read failure message powerpc/pseries/memhotplug: Quieten some DLPAR operations powerpc/ps3: use dma_mapping_error() powerpc: force inlining of csum_partial() to avoid multiple csum_partial() with GCC10 powerpc/perf: Fix Threshold Event Counter Multiplier width for P10 powerpc/mm: Fix hugetlb_free_pmd_range() and hugetlb_free_pud_range() KVM: PPC: Book3S HV: Fix mask size for emulated msgsndp KVM: PPC: fix comparison to bool warning KVM: PPC: Book3S: Assign boolean values to a bool variable powerpc: Inline setup_kup() powerpc/64s: Mark the kuap/kuep functions non __init KVM: PPC: Book3S HV: XIVE: Add a comment regarding VP numbering powerpc/xive: Improve error reporting of OPAL calls powerpc/xive: Simplify xive_do_source_eoi() powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_EOI_FW powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_MASK_FW powerpc/xive: Remove P9 DD1 flag XIVE_IRQ_FLAG_SHIFT_BUG ...
2020-12-17mptcp: push pending frames when subflow has free spacePaolo Abeni1-3/+3
When multiple subflows are active, we can receive a window update on subflow with no write space available. MPTCP will try to push frames on such subflow and will fail. Pending frames will be pushed only after receiving a window update on a subflow with some wspace available. Overall the above could lead to suboptimal aggregate bandwidth usage. Instead, we should try to push pending frames as soon as the subflow reaches both conditions mentioned above. We can finally enable self-tests with asymmetric links, as the above makes them finally pass. Fixes: 6f8a612a33e4 ("mptcp: keep track of advertised windows right edge") Reviewed-by: Mat Martineau <[email protected]> Signed-off-by: Paolo Abeni <[email protected]> Signed-off-by: Jakub Kicinski <[email protected]>
2020-12-17tools headers UAPI: Sync linux/stat.h with the kernel sourcesArnaldo Carvalho de Melo1-3/+6
To pick the changes in: 72d1249e2ffdbc34 ("uapi: fix statx attribute value overlap for DAX & MOUNT_ROOT") That don't cause any change in tooling, just addresses this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/stat.h' differs from latest version at 'include/uapi/linux/stat.h' diff -u tools/include/uapi/linux/stat.h include/uapi/linux/stat.h Cc: Adrian Hunter <[email protected]> Cc: Eric Sandeen <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-17tools headers: Syncronize linux/build_bug.h with the kernel sourcesArnaldo Carvalho de Melo1-0/+5
To pick up the changes in: 14dc3983b5dff513 ("kbuild: avoid static_assert for genksyms") And silence this perf build warning: Warning: Kernel ABI header at 'tools/include/linux/build_bug.h' differs from latest version at 'include/linux/build_bug.h' diff -u tools/include/linux/build_bug.h include/linux/build_bug.h Cc: Adrian Hunter <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-17Merge remote-tracking branch 'torvalds/master' into perf/coreArnaldo Carvalho de Melo294-3760/+17688
To pick up fixes and check what UAPI headers need to be synched. Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-17perf tools: Reformat record's control fd man textJiri Olsa1-5/+11
Adding available control commands in separate paragraph, so it's more readable and easier to add new commands. Signed-off-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Alexei Budankov <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-17perf config: Fix example command in manpage to conform to syntax specified ↵Nick Thompson1-1/+1
in the SYNOPSIS section. Committer testing: With the previously documented example: $ perf config --user report sort-order=srcline The config variable does not contain a section name: report $ With the fixed example line: $ perf config --user report.sort-order=srcline $ perf config --user report.sort-order report.sort-order=srcline $ Signed-off-by: Nick Thompson <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Link: https://lore.kernel.org/linux-perf-users/[email protected]/ Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-17perf test: Make sample-parsing test aware of PERF_SAMPLE_{CODE,DATA}_PAGE_SIZEArnaldo Carvalho de Melo1-1/+5
To fix this: $ perf test -v 27 27: Sample parsing : --- start --- test child forked, pid 586013 sample format has changed, some new PERF_SAMPLE_ bit was introduced - test needs updating test child finished with -1 ---- end ---- Sample parsing: FAILED! $ This patchset is still not completely merged, so when adding the PERF_SAMPLE_CODE_PAGE_SIZE to 'struct perf_sample' we need to add the bits added in this patch for 'perf_sample.data_page_size'. Fixes: 251cc77b8176de37 ("tools headers UAPI: Update tools's copy of linux/perf_event.h") Cc: Adrian Hunter <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Namhyung Kim <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-17perf tools: Add support to read build id from compressed elfJiri Olsa2-3/+36
Adding support to decompress file before reading build id. Adding filename__read_build_id and change its current versions to read_build_id. Shutting down stderr output of perf list in the shell test: 82: Check open filename arg using perf trace + vfs_getname : Ok because with decompression code in the place we the filename__read_build_id function is more verbose in case of error and the test did not account for that. Signed-off-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Alexei Budankov <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Song Liu <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2020-12-17perf debug: Add debug_set_file functionJiri Olsa2-1/+10
Allow to set debug output file via new debug_set_file function. It's called during perf startup in perf_debug_setup to set stderr file as default and any perf command can set it later to different file. It will be used in perf daemon command to get verbose output into log file. Signed-off-by: Jiri Olsa <[email protected]> Cc: Alexander Shishkin <[email protected]> Cc: Alexei Budankov <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Michael Petlan <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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