tools headers UAPI: Sync include/uapi/linux/perf_event.h header with the kernel

Sync the new sample type for the branch counters feature.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tinghao Zhang <tinghao.zhang@intel.com>
Link: https://lore.kernel.org/r/20231025201626.3000228-6-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index 39c6a250dd1b92af18e3b4a72a047d2784f89382..3a64499b0f5d63734d632ab03cd1966211473d8c 100644 (file)
--- 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_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)