From: James Clark <james.clark@arm.com>
To: linux-perf-users@vger.kernel.org, tanmay@marvell.com,
leo.yan@linaro.org, mike.leach@linaro.org
Cc: sgoutham@marvell.com, gcherian@marvell.com, lcherian@marvell.com,
bbhushan2@marvell.com, German Gomez <german.gomez@arm.com>,
James Clark <james.clark@arm.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
John Garry <john.g.garry@oracle.com>,
Will Deacon <will@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v3 5/7] perf cs_etm: Keep separate symbols for ETMv4 and ETE parameters
Date: Tue, 3 Jan 2023 16:20:39 +0000 [thread overview]
Message-ID: <20230103162042.423694-6-james.clark@arm.com> (raw)
In-Reply-To: <20230103162042.423694-1-james.clark@arm.com>
From: German Gomez <german.gomez@arm.com>
Previously, adding a new parameter at the end of ETMv4 meant adding it
somewhere in the middle of ETE, which is not supported by the current
header version.
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: German Gomez <german.gomez@arm.com>
Signed-off-by: James Clark <james.clark@arm.com>
---
tools/perf/arch/arm/util/cs-etm.c | 43 ++++++++++++++++++++++++++-----
tools/perf/util/cs-etm-base.c | 32 +++++++++++++++++------
tools/perf/util/cs-etm.c | 12 ++++-----
tools/perf/util/cs-etm.h | 11 +++++++-
4 files changed, 76 insertions(+), 22 deletions(-)
diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c
index a346d5f3dafa..b526ffe550a5 100644
--- a/tools/perf/arch/arm/util/cs-etm.c
+++ b/tools/perf/arch/arm/util/cs-etm.c
@@ -53,7 +53,15 @@ static const char * const metadata_etmv4_ro[] = {
[CS_ETMV4_TRCIDR2] = "trcidr/trcidr2",
[CS_ETMV4_TRCIDR8] = "trcidr/trcidr8",
[CS_ETMV4_TRCAUTHSTATUS] = "mgmt/trcauthstatus",
- [CS_ETE_TRCDEVARCH] = "mgmt/trcdevarch"
+};
+
+static const char * const metadata_ete_ro[] = {
+ [CS_ETE_TRCIDR0] = "trcidr/trcidr0",
+ [CS_ETE_TRCIDR1] = "trcidr/trcidr1",
+ [CS_ETE_TRCIDR2] = "trcidr/trcidr2",
+ [CS_ETE_TRCIDR8] = "trcidr/trcidr8",
+ [CS_ETE_TRCAUTHSTATUS] = "mgmt/trcauthstatus",
+ [CS_ETE_TRCDEVARCH] = "mgmt/trcdevarch",
};
static bool cs_etm_is_etmv4(struct auxtrace_record *itr, int cpu);
@@ -617,7 +625,7 @@ static bool cs_etm_is_ete(struct auxtrace_record *itr, int cpu)
{
struct cs_etm_recording *ptr = container_of(itr, struct cs_etm_recording, itr);
struct perf_pmu *cs_etm_pmu = ptr->cs_etm_pmu;
- int trcdevarch = cs_etm_get_ro(cs_etm_pmu, cpu, metadata_etmv4_ro[CS_ETE_TRCDEVARCH]);
+ int trcdevarch = cs_etm_get_ro(cs_etm_pmu, cpu, metadata_ete_ro[CS_ETE_TRCDEVARCH]);
/*
* ETE if ARCHVER is 5 (ARCHVER is 4 for ETM) and ARCHPART is 0xA13.
@@ -648,6 +656,31 @@ static void cs_etm_save_etmv4_header(__u64 data[], struct auxtrace_record *itr,
metadata_etmv4_ro[CS_ETMV4_TRCAUTHSTATUS]);
}
+static void cs_etm_save_ete_header(__u64 data[], struct auxtrace_record *itr, int cpu)
+{
+ struct cs_etm_recording *ptr = container_of(itr, struct cs_etm_recording, itr);
+ struct perf_pmu *cs_etm_pmu = ptr->cs_etm_pmu;
+
+ /* Get trace configuration register */
+ data[CS_ETE_TRCCONFIGR] = cs_etmv4_get_config(itr);
+ /* Get traceID from the framework */
+ data[CS_ETE_TRCTRACEIDR] = coresight_get_trace_id(cpu);
+ /* Get read-only information from sysFS */
+ data[CS_ETE_TRCIDR0] = cs_etm_get_ro(cs_etm_pmu, cpu,
+ metadata_ete_ro[CS_ETE_TRCIDR0]);
+ data[CS_ETE_TRCIDR1] = cs_etm_get_ro(cs_etm_pmu, cpu,
+ metadata_ete_ro[CS_ETE_TRCIDR1]);
+ data[CS_ETE_TRCIDR2] = cs_etm_get_ro(cs_etm_pmu, cpu,
+ metadata_ete_ro[CS_ETE_TRCIDR2]);
+ data[CS_ETE_TRCIDR8] = cs_etm_get_ro(cs_etm_pmu, cpu,
+ metadata_ete_ro[CS_ETE_TRCIDR8]);
+ data[CS_ETE_TRCAUTHSTATUS] = cs_etm_get_ro(cs_etm_pmu, cpu,
+ metadata_ete_ro[CS_ETE_TRCAUTHSTATUS]);
+ /* ETE uses the same registers as ETMv4 plus TRCDEVARCH */
+ data[CS_ETE_TRCDEVARCH] = cs_etm_get_ro(cs_etm_pmu, cpu,
+ metadata_ete_ro[CS_ETE_TRCDEVARCH]);
+}
+
static void cs_etm_get_metadata(int cpu, u32 *offset,
struct auxtrace_record *itr,
struct perf_record_auxtrace_info *info)
@@ -661,11 +694,7 @@ static void cs_etm_get_metadata(int cpu, u32 *offset,
/* first see what kind of tracer this cpu is affined to */
if (cs_etm_is_ete(itr, cpu)) {
magic = __perf_cs_ete_magic;
- /* ETE uses the same registers as ETMv4 plus TRCDEVARCH */
- cs_etm_save_etmv4_header(&info->priv[*offset], itr, cpu);
- info->priv[*offset + CS_ETE_TRCDEVARCH] =
- cs_etm_get_ro(cs_etm_pmu, cpu,
- metadata_etmv4_ro[CS_ETE_TRCDEVARCH]);
+ cs_etm_save_ete_header(&info->priv[*offset], itr, cpu);
/* How much space was used */
increment = CS_ETE_PRIV_MAX;
diff --git a/tools/perf/util/cs-etm-base.c b/tools/perf/util/cs-etm-base.c
index 597542410854..282042c6e944 100644
--- a/tools/perf/util/cs-etm-base.c
+++ b/tools/perf/util/cs-etm-base.c
@@ -36,7 +36,20 @@ static const char * const cs_etmv4_priv_fmts[] = {
[CS_ETMV4_TRCIDR2] = " TRCIDR2 %llx\n",
[CS_ETMV4_TRCIDR8] = " TRCIDR8 %llx\n",
[CS_ETMV4_TRCAUTHSTATUS] = " TRCAUTHSTATUS %llx\n",
- [CS_ETE_TRCDEVARCH] = " TRCDEVARCH %llx\n"
+};
+
+static const char * const cs_ete_priv_fmts[] = {
+ [CS_ETM_MAGIC] = " Magic number %llx\n",
+ [CS_ETM_CPU] = " CPU %lld\n",
+ [CS_ETM_NR_TRC_PARAMS] = " NR_TRC_PARAMS %llx\n",
+ [CS_ETE_TRCCONFIGR] = " TRCCONFIGR %llx\n",
+ [CS_ETE_TRCTRACEIDR] = " TRCTRACEIDR %llx\n",
+ [CS_ETE_TRCIDR0] = " TRCIDR0 %llx\n",
+ [CS_ETE_TRCIDR1] = " TRCIDR1 %llx\n",
+ [CS_ETE_TRCIDR2] = " TRCIDR2 %llx\n",
+ [CS_ETE_TRCIDR8] = " TRCIDR8 %llx\n",
+ [CS_ETE_TRCAUTHSTATUS] = " TRCAUTHSTATUS %llx\n",
+ [CS_ETE_TRCDEVARCH] = " TRCDEVARCH %llx\n",
};
static const char * const param_unk_fmt =
@@ -96,19 +109,22 @@ static int cs_etm__print_cpu_metadata_v1(u64 *val, int *offset)
else
fprintf(stdout, cs_etm_priv_fmts[j], val[i]);
}
- } else if (magic == __perf_cs_etmv4_magic || magic == __perf_cs_ete_magic) {
- /*
- * ETE and ETMv4 can be printed in the same block because the number of parameters
- * is saved and they share the list of parameter names. ETE is also only supported
- * in V1 files.
- */
+ } else if (magic == __perf_cs_etmv4_magic) {
for (j = 0; j < total_params; j++, i++) {
/* if newer record - could be excess params */
- if (j >= CS_ETE_PRIV_MAX)
+ if (j >= CS_ETMV4_PRIV_MAX)
fprintf(stdout, param_unk_fmt, j, val[i]);
else
fprintf(stdout, cs_etmv4_priv_fmts[j], val[i]);
}
+ } else if (magic == __perf_cs_ete_magic) {
+ for (j = 0; j < total_params; j++, i++) {
+ /* if newer record - could be excess params */
+ if (j >= CS_ETE_PRIV_MAX)
+ fprintf(stdout, param_unk_fmt, j, val[i]);
+ else
+ fprintf(stdout, cs_ete_priv_fmts[j], val[i]);
+ }
} else {
/* failure - note bad magic value and error out */
fprintf(stdout, magic_unk_fmt, magic);
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index 33303d03c2fa..879576d5f899 100644
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -464,12 +464,12 @@ static void cs_etm__set_trace_param_ete(struct cs_etm_trace_params *t_params,
u64 **metadata = etm->metadata;
t_params[idx].protocol = CS_ETM_PROTO_ETE;
- t_params[idx].ete.reg_idr0 = metadata[idx][CS_ETMV4_TRCIDR0];
- t_params[idx].ete.reg_idr1 = metadata[idx][CS_ETMV4_TRCIDR1];
- t_params[idx].ete.reg_idr2 = metadata[idx][CS_ETMV4_TRCIDR2];
- t_params[idx].ete.reg_idr8 = metadata[idx][CS_ETMV4_TRCIDR8];
- t_params[idx].ete.reg_configr = metadata[idx][CS_ETMV4_TRCCONFIGR];
- t_params[idx].ete.reg_traceidr = metadata[idx][CS_ETMV4_TRCTRACEIDR];
+ t_params[idx].ete.reg_idr0 = metadata[idx][CS_ETE_TRCIDR0];
+ t_params[idx].ete.reg_idr1 = metadata[idx][CS_ETE_TRCIDR1];
+ t_params[idx].ete.reg_idr2 = metadata[idx][CS_ETE_TRCIDR2];
+ t_params[idx].ete.reg_idr8 = metadata[idx][CS_ETE_TRCIDR8];
+ t_params[idx].ete.reg_configr = metadata[idx][CS_ETE_TRCCONFIGR];
+ t_params[idx].ete.reg_traceidr = metadata[idx][CS_ETE_TRCTRACEIDR];
t_params[idx].ete.reg_devarch = metadata[idx][CS_ETE_TRCDEVARCH];
}
diff --git a/tools/perf/util/cs-etm.h b/tools/perf/util/cs-etm.h
index 5da50d5dae6b..c5925428afa9 100644
--- a/tools/perf/util/cs-etm.h
+++ b/tools/perf/util/cs-etm.h
@@ -82,7 +82,16 @@ enum {
* added in header V1
*/
enum {
- CS_ETE_TRCDEVARCH = CS_ETMV4_PRIV_MAX,
+ /* Dynamic, configurable parameters */
+ CS_ETE_TRCCONFIGR = CS_ETM_COMMON_BLK_MAX_V1,
+ CS_ETE_TRCTRACEIDR,
+ /* RO, taken from sysFS */
+ CS_ETE_TRCIDR0,
+ CS_ETE_TRCIDR1,
+ CS_ETE_TRCIDR2,
+ CS_ETE_TRCIDR8,
+ CS_ETE_TRCAUTHSTATUS,
+ CS_ETE_TRCDEVARCH,
CS_ETE_PRIV_MAX
};
--
2.25.1
next prev parent reply other threads:[~2023-01-03 16:23 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-03 16:20 [PATCH v3 0/7] perf cs_etm: Basic support for virtual/kernel timestamps James Clark
2023-01-03 16:20 ` [PATCH v3 1/7] perf: Remove duplication around EVENT_SOURCE_DEVICE_PATH James Clark
2023-01-03 16:20 ` [PATCH v3 2/7] perf: Use perf_pmu__open_file() and perf_pmu__scan_file() James Clark
2023-01-11 7:09 ` Leo Yan
2023-01-11 15:14 ` James Clark
2023-01-03 16:20 ` [PATCH v3 3/7] perf: Remove remaining duplication of bus/event_source/devices/ James Clark
2023-01-03 16:20 ` [PATCH v3 4/7] perf pmu: Add function to check if a pmu file exists James Clark
2023-01-03 16:20 ` James Clark [this message]
2023-01-03 16:20 ` [PATCH v3 6/7] perf cs_etm: Record ts_source in AUXTRACE_INFO for ETMv4 and ETE James Clark
2023-01-03 16:20 ` [PATCH v3 7/7] perf cs_etm: Set the time field in the synthetic samples James Clark
2023-01-10 16:42 ` [PATCH v3 0/7] perf cs_etm: Basic support for virtual/kernel timestamps Tanmay Jagdale
2023-01-11 10:56 ` James Clark
2023-01-11 17:47 ` James Clark
2023-01-12 15:33 ` Tanmay Jagdale
2023-01-13 11:12 ` James Clark
2023-01-19 15:53 ` James Clark
2023-01-20 17:30 ` Tanmay Jagdale
2023-01-20 17:47 ` Arnaldo Carvalho de Melo
2023-01-21 5:13 ` Tanmay Jagdale
2023-01-11 11:35 ` James Clark
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