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Message-Id: <20240914215458.751802-6-leo.yan@arm.com>
Date: Sat, 14 Sep 2024 22:54:58 +0100
From: Leo Yan <leo.yan@....com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>,
James Clark <james.clark@...aro.org>,
Mike Leach <mike.leach@...aro.org>,
Will Deacon <will@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Jiri Olsa <jolsa@...nel.org>,
Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>,
"Liang, Kan" <kan.liang@...ux.intel.com>,
linux-arm-kernel@...ts.infradead.org,
linux-perf-users@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Leo Yan <leo.yan@....com>
Subject: [PATCH v2 5/5] perf arm-spe: Dump metadata with version 2
This commit dumps metadata with version 2. It dumps metadata for header
and per CPU data respectively in the arm_spe_print_info() function to
support metadata version 2 format.
After:
0 0 0x3c0 [0x1b0]: PERF_RECORD_AUXTRACE_INFO type: 4
Header version :2
Header size :4
Shared PMU type :13
CPU number :8
Magic :0x1010101010101010
CPU # :0
Num of params :3
MIDR :0x410fd801
PMU Type :-1
Min Interval :0
Magic :0x1010101010101010
CPU # :1
Num of params :3
MIDR :0x410fd801
PMU Type :-1
Min Interval :0
Magic :0x1010101010101010
CPU # :2
Num of params :3
MIDR :0x410fd870
PMU Type :13
Min Interval :1024
Magic :0x1010101010101010
CPU # :3
Num of params :3
MIDR :0x410fd870
PMU Type :13
Min Interval :1024
Magic :0x1010101010101010
CPU # :4
Num of params :3
MIDR :0x410fd870
PMU Type :13
Min Interval :1024
Magic :0x1010101010101010
CPU # :5
Num of params :3
MIDR :0x410fd870
PMU Type :13
Min Interval :1024
Magic :0x1010101010101010
CPU # :6
Num of params :3
MIDR :0x410fd850
PMU Type :-1
Min Interval :0
Magic :0x1010101010101010
CPU # :7
Num of params :3
MIDR :0x410fd850
PMU Type :-1
Min Interval :0
Signed-off-by: Leo Yan <leo.yan@....com>
---
tools/perf/util/arm-spe.c | 54 +++++++++++++++++++++++++++++++++++----
1 file changed, 49 insertions(+), 5 deletions(-)
diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index 17782cb40fb5..4212a8aa0d2c 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -1133,16 +1133,60 @@ static bool arm_spe_evsel_is_auxtrace(struct perf_session *session,
return evsel->core.attr.type == spe->pmu_type;
}
-static const char * const arm_spe_info_fmts[] = {
- [ARM_SPE_PMU_TYPE] = " PMU Type %"PRId64"\n",
+static const char * const metadata_hdr_v1_fmts[] = {
+ [ARM_SPE_PMU_TYPE] = " PMU Type :%"PRId64"\n",
+ [ARM_SPE_PER_CPU_MMAPS] = " Per CPU mmaps :%"PRId64"\n",
};
-static void arm_spe_print_info(__u64 *arr)
+static const char * const metadata_hdr_fmts[] = {
+ [ARM_SPE_HEADER_VERSION] = " Header version :%"PRId64"\n",
+ [ARM_SPE_HEADER_SIZE] = " Header size :%"PRId64"\n",
+ [ARM_SPE_SHARED_PMU_TYPE] = " Shared PMU type :%"PRId64"\n",
+ [ARM_SPE_CPUS_NUM] = " CPU number :%"PRId64"\n",
+};
+
+static const char * const metadata_per_cpu_fmts[] = {
+ [ARM_SPE_MAGIC] = " Magic :0x%"PRIx64"\n",
+ [ARM_SPE_CPU] = " CPU # :%"PRId64"\n",
+ [ARM_SPE_CPU_NR_PARAMS] = " Num of params :%"PRId64"\n",
+ [ARM_SPE_CPU_MIDR] = " MIDR :0x%"PRIx64"\n",
+ [ARM_SPE_CPU_PMU_TYPE] = " PMU Type :%"PRId64"\n",
+ [ARM_SPE_CAP_MIN_IVAL] = " Min Interval :%"PRId64"\n",
+};
+
+static void arm_spe_print_info(struct arm_spe *spe, __u64 *arr)
{
+ unsigned int i, cpu, hdr_size, cpu_num, cpu_size;
+ const char * const *hdr_fmts;
+
if (!dump_trace)
return;
- fprintf(stdout, arm_spe_info_fmts[ARM_SPE_PMU_TYPE], arr[ARM_SPE_PMU_TYPE]);
+ if (spe->metadata_ver == 1) {
+ cpu_num = 0;
+ hdr_size = ARM_SPE_AUXTRACE_V1_PRIV_MAX;
+ hdr_fmts = metadata_hdr_v1_fmts;
+ } else {
+ cpu_num = arr[ARM_SPE_CPUS_NUM];
+ hdr_size = arr[ARM_SPE_HEADER_SIZE];
+ hdr_fmts = metadata_hdr_fmts;
+ }
+
+ for (i = 0; i < hdr_size; i++)
+ fprintf(stdout, hdr_fmts[i], arr[i]);
+
+ arr += hdr_size;
+ for (cpu = 0; cpu < cpu_num; cpu++) {
+ /*
+ * The parameters from ARM_SPE_MAGIC to ARM_SPE_CPU_NR_PARAMS
+ * are fixed. The sequential parameter size is decided by the
+ * field 'ARM_SPE_CPU_NR_PARAMS'.
+ */
+ cpu_size = (ARM_SPE_CPU_NR_PARAMS + 1) + arr[ARM_SPE_CPU_NR_PARAMS];
+ for (i = 0; i < cpu_size; i++)
+ fprintf(stdout, metadata_per_cpu_fmts[i], arr[i]);
+ arr += cpu_size;
+ }
}
static void arm_spe_set_event_name(struct evlist *evlist, u64 id,
@@ -1405,7 +1449,7 @@ int arm_spe_process_auxtrace_info(union perf_event *event,
spe->auxtrace.evsel_is_auxtrace = arm_spe_evsel_is_auxtrace;
session->auxtrace = &spe->auxtrace;
- arm_spe_print_info(&auxtrace_info->priv[0]);
+ arm_spe_print_info(spe, &auxtrace_info->priv[0]);
if (dump_trace)
return 0;
--
2.34.1
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