linux-kernel - [PATCH 7/9] perf test: Support PERF_SAMPLE_WEIGHT

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Date:   Tue,  2 Feb 2021 12:09:11 -0800
From:   kan.liang@...ux.intel.com
To:     acme@...nel.org, mingo@...nel.org, linux-kernel@...r.kernel.org
Cc:     peterz@...radead.org, eranian@...gle.com, namhyung@...nel.org,
        jolsa@...hat.com, ak@...ux.intel.com, yao.jin@...ux.intel.com,
        maddy@...ux.vnet.ibm.com, Kan Liang <kan.liang@...ux.intel.com>
Subject: [PATCH 7/9] perf test: Support PERF_SAMPLE_WEIGHT_STRUCT

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

Support the new sample type for sample-parsing test case.

Signed-off-by: Kan Liang <kan.liang@...ux.intel.com>
---
 tools/perf/tests/sample-parsing.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/tools/perf/tests/sample-parsing.c b/tools/perf/tests/sample-parsing.c
index 2393916..c5739cc 100644
--- a/tools/perf/tests/sample-parsing.c
+++ b/tools/perf/tests/sample-parsing.c
@@ -129,6 +129,9 @@ static bool samples_same(const struct perf_sample *s1,
 	if (type & PERF_SAMPLE_WEIGHT)
 		COMP(weight);
 
+	if (type & PERF_SAMPLE_WEIGHT_STRUCT)
+		COMP(ins_lat);
+
 	if (type & PERF_SAMPLE_DATA_SRC)
 		COMP(data_src);
 
@@ -238,6 +241,7 @@ static int do_test(u64 sample_type, u64 sample_regs, u64 read_format)
 		.phys_addr	= 113,
 		.cgroup		= 114,
 		.data_page_size = 115,
+		.ins_lat	= 116,
 		.aux_sample	= {
 			.size	= sizeof(aux_data),
 			.data	= (void *)aux_data,
@@ -344,7 +348,7 @@ int test__sample_parsing(struct test *test __maybe_unused, int subtest __maybe_u
 	 * were added.  Please actually update the test rather than just change
 	 * the condition below.
 	 */
-	if (PERF_SAMPLE_MAX > PERF_SAMPLE_CODE_PAGE_SIZE << 1) {
+	if (PERF_SAMPLE_MAX > PERF_SAMPLE_WEIGHT_STRUCT << 1) {
 		pr_debug("sample format has changed, some new PERF_SAMPLE_ bit was introduced - test needs updating\n");
 		return -1;
 	}
@@ -374,8 +378,12 @@ int test__sample_parsing(struct test *test __maybe_unused, int subtest __maybe_u
 			return err;
 	}
 
-	/* Test all sample format bits together */
-	sample_type = PERF_SAMPLE_MAX - 1;
+	/*
+	 * Test all sample format bits together
+	 * Note: PERF_SAMPLE_WEIGHT and PERF_SAMPLE_WEIGHT_STRUCT cannot
+	 *       be set simultaneously.
+	 */
+	sample_type = (PERF_SAMPLE_MAX - 1) & ~PERF_SAMPLE_WEIGHT;
 	sample_regs = 0x3fff; /* shared yb intr and user regs */
 	for (i = 0; i < ARRAY_SIZE(rf); i++) {
 		err = do_test(sample_type, sample_regs, rf[i]);
-- 
2.7.4