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Merge tag 'perf-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull performance events updates from Ingo Molnar:

 - Add branch stack counters ABI extension to better capture the growing
   amount of information the PMU exposes via branch stack sampling.
   There's matching tooling support.

 - Fix race when creating the nr_addr_filters sysfs file

 - Add Intel Sierra Forest and Grand Ridge intel/cstate PMU support

 - Add Intel Granite Rapids, Sierra Forest and Grand Ridge uncore PMU
   support

 - Misc cleanups & fixes

* tag 'perf-core-2024-01-08' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/uncore: Factor out topology_gidnid_map()
  perf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology()
  perf/x86/amd: Reject branch stack for IBS events
  perf/x86/intel/uncore: Support Sierra Forest and Grand Ridge
  perf/x86/intel/uncore: Support IIO free-running counters on GNR
  perf/x86/intel/uncore: Support Granite Rapids
  perf/x86/uncore: Use u64 to replace unsigned for the uncore offsets array
  perf/x86/intel/uncore: Generic uncore_get_uncores and MMIO format of SPR
  perf: Fix the nr_addr_filters fix
  perf/x86/intel/cstate: Add Grand Ridge support
  perf/x86/intel/cstate: Add Sierra Forest support
  x86/smp: Export symbol cpu_clustergroup_mask()
  perf/x86/intel/cstate: Cleanup duplicate attr_groups
  perf/core: Fix narrow startup race when creating the perf nr_addr_filters sysfs file
  perf/x86/intel: Support branch counters logging
  perf/x86/intel: Reorganize attrs and is_visible
  perf: Add branch_sample_call_stack
  perf/x86: Add PERF_X86_EVENT_NEEDS_BRANCH_STACK flag
  perf: Add branch stack counters
This commit is contained in:
Linus Torvalds
2024-01-08 19:37:20 -08:00
parent 0bdf0621f8 fdd041028f
commit aac4de465a
23 changed files with 627 additions and 130 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/uapi/linux/perf_event.h
+13
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@@ -204,6 +204,8 @@ enum perf_branch_sample_type_shift {
PERF_SAMPLE_BRANCH_PRIV_SAVE_SHIFT = 18, /* save privilege mode */
PERF_SAMPLE_BRANCH_COUNTERS_SHIFT = 19, /* save occurrences of events on a branch */
PERF_SAMPLE_BRANCH_MAX_SHIFT /* non-ABI */
};
@@ -235,6 +237,8 @@ enum perf_branch_sample_type {
PERF_SAMPLE_BRANCH_PRIV_SAVE = 1U << PERF_SAMPLE_BRANCH_PRIV_SAVE_SHIFT,
PERF_SAMPLE_BRANCH_COUNTERS = 1U << PERF_SAMPLE_BRANCH_COUNTERS_SHIFT,
PERF_SAMPLE_BRANCH_MAX = 1U << PERF_SAMPLE_BRANCH_MAX_SHIFT,
};
@@ -982,6 +986,12 @@ enum perf_event_type {
* { u64 nr;
* { u64 hw_idx; } && PERF_SAMPLE_BRANCH_HW_INDEX
* { u64 from, to, flags } lbr[nr];
* #
* # The format of the counters is decided by the
* # "branch_counter_nr" and "branch_counter_width",
* # which are defined in the ABI.
* #
* { u64 counters; } cntr[nr] && PERF_SAMPLE_BRANCH_COUNTERS
* } && PERF_SAMPLE_BRANCH_STACK
*
* { u64 abi; # enum perf_sample_regs_abi
@@ -1427,6 +1437,9 @@ struct perf_branch_entry {
reserved:31;
};
/* Size of used info bits in struct perf_branch_entry */
#define PERF_BRANCH_ENTRY_INFO_BITS_MAX 33
union perf_sample_weight {
__u64 full;
#if defined(__LITTLE_ENDIAN_BITFIELD)