linux-kernel - [PATCH V3 5/6] tools headers UAPI: Sync include/uapi/linux/perf

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Message-Id: <20230816143628.1885281-5-kan.liang@linux.intel.com>
Date:   Wed, 16 Aug 2023 07:36:27 -0700
From:   kan.liang@...ux.intel.com
To:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        linux-kernel@...r.kernel.org
Cc:     mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        jolsa@...nel.org, namhyung@...nel.org, irogers@...gle.com,
        adrian.hunter@...el.com, ak@...ux.intel.com, eranian@...gle.com,
        alexey.v.bayduraev@...ux.intel.com, tinghao.zhang@...el.com,
        Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH V3 5/6] tools headers UAPI: Sync include/uapi/linux/perf_event.h header with the kernel

From: Kan Liang <kan.liang@...ux.intel.com>

Sync the new sample types and extra space for the branch event feature.

Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---

Changes since V2:
- Drop the new bit in struct perf_branch_entry
- Introduce a new sample type PERF_SAMPLE_BRANCH_EXTRA

 tools/include/uapi/linux/perf_event.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index 39c6a250dd1b..252066579dae 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -204,6 +204,10 @@ enum perf_branch_sample_type_shift {
 
 	PERF_SAMPLE_BRANCH_PRIV_SAVE_SHIFT	= 18, /* save privilege mode */
 
+	PERF_SAMPLE_BRANCH_EXTRA_SHIFT		= 19, /* support extra space */
+
+	PERF_SAMPLE_BRANCH_EVT_CNTRS_SHIFT	= 20, /* save occurrences of events on a branch */
+
 	PERF_SAMPLE_BRANCH_MAX_SHIFT		/* non-ABI */
 };
 
@@ -235,6 +239,10 @@ enum perf_branch_sample_type {
 
 	PERF_SAMPLE_BRANCH_PRIV_SAVE	= 1U << PERF_SAMPLE_BRANCH_PRIV_SAVE_SHIFT,
 
+	PERF_SAMPLE_BRANCH_EXTRA	= 1U << PERF_SAMPLE_BRANCH_EXTRA_SHIFT,
+
+	PERF_SAMPLE_BRANCH_EVT_CNTRS	= 1U << PERF_SAMPLE_BRANCH_EVT_CNTRS_SHIFT,
+
 	PERF_SAMPLE_BRANCH_MAX		= 1U << PERF_SAMPLE_BRANCH_MAX_SHIFT,
 };
 
@@ -982,6 +990,7 @@ enum perf_event_type {
 	 *	{ u64                   nr;
 	 *	  { u64	hw_idx; } && PERF_SAMPLE_BRANCH_HW_INDEX
 	 *        { u64 from, to, flags } lbr[nr];
+	 *        { u64 extra; } ext[nr] && PERF_SAMPLE_BRANCH_EXTRA
 	 *      } && PERF_SAMPLE_BRANCH_STACK
 	 *
 	 * 	{ u64			abi; # enum perf_sample_regs_abi
-- 
2.35.1