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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-10 09:27:46 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-10 09:27:46 -0700 |
commit | 3871d93b82a4a6c1f4308064f046a544f16ada21 (patch) | |
tree | 99ef06b536798100cd7abb4753263505cc465215 /arch/powerpc/perf/core-book3s.c | |
parent | 30c999937f69abf935b0228b8411713737377d9e (diff) | |
parent | 82aad7ff7ac25c8cf09d491ae23b9823f1901486 (diff) | |
download | lwn-3871d93b82a4a6c1f4308064f046a544f16ada21.tar.gz lwn-3871d93b82a4a6c1f4308064f046a544f16ada21.zip |
Merge tag 'perf-core-2022-10-07' of 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
...
Diffstat (limited to 'arch/powerpc/perf/core-book3s.c')
-rw-r--r-- | arch/powerpc/perf/core-book3s.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index 03e31ae97741..942aa830e110 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -2314,16 +2314,20 @@ static void record_and_restart(struct perf_event *event, unsigned long val, cpuhw = this_cpu_ptr(&cpu_hw_events); power_pmu_bhrb_read(event, cpuhw); data.br_stack = &cpuhw->bhrb_stack; + data.sample_flags |= PERF_SAMPLE_BRANCH_STACK; } if (event->attr.sample_type & PERF_SAMPLE_DATA_SRC && - ppmu->get_mem_data_src) + ppmu->get_mem_data_src) { ppmu->get_mem_data_src(&data.data_src, ppmu->flags, regs); + data.sample_flags |= PERF_SAMPLE_DATA_SRC; + } if (event->attr.sample_type & PERF_SAMPLE_WEIGHT_TYPE && - ppmu->get_mem_weight) + ppmu->get_mem_weight) { ppmu->get_mem_weight(&data.weight.full, event->attr.sample_type); - + data.sample_flags |= PERF_SAMPLE_WEIGHT_TYPE; + } if (perf_event_overflow(event, &data, regs)) power_pmu_stop(event, 0); } else if (period) { |