Messages in this thread Patch in this message | | | From | kan.liang@linux ... | Subject | [PATCH V2 5/6] tools headers UAPI: Sync include/uapi/linux/perf_event.h header with the kernel | Date | Mon, 22 May 2023 04:30:39 -0700 |
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From: Kan Liang <kan.liang@linux.intel.com>
Sync the new sample type and extension bit for the branch event feature.
Reviewed-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Kan Liang <kan.liang@linux.intel.com> ---
Changes since V1: - Rename to PERF_SAMPLE_BRANCH_EVT_CNTRS - Drop the event ID sample type - Add extension bit
tools/include/uapi/linux/perf_event.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h index 37675437b768..3911cf000e8a 100644 --- a/tools/include/uapi/linux/perf_event.h +++ b/tools/include/uapi/linux/perf_event.h @@ -204,6 +204,8 @@ enum perf_branch_sample_type_shift { PERF_SAMPLE_BRANCH_PRIV_SAVE_SHIFT = 18, /* save privilege mode */ + PERF_SAMPLE_BRANCH_EVT_CNTRS_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_EVT_CNTRS = 1U << PERF_SAMPLE_BRANCH_EVT_CNTRS_SHIFT, + PERF_SAMPLE_BRANCH_MAX = 1U << PERF_SAMPLE_BRANCH_MAX_SHIFT, }; @@ -1410,6 +1414,7 @@ union perf_mem_data_src { * cycles: cycles from last branch (or 0 if not supported) * type: branch type * spec: branch speculation info (or 0 if not supported) + * ext: has extension space for extra info (or 0 if not supported) */ struct perf_branch_entry { __u64 from; @@ -1423,7 +1428,8 @@ struct perf_branch_entry { spec:2, /* branch speculation info */ new_type:4, /* additional branch type */ priv:3, /* privilege level */ - reserved:31; + ext:1, /* has extension */ + reserved:30; }; union perf_sample_weight { -- 2.35.1
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