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perf cs-etm: Refactor out ETMv4 header saving

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Extract a function for saving the ETMv4 header because this will be used
for ETE in a later commit.

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https //lore.kernel.org/r/20210806134109.1182235-4-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
James Clark 2021-08-06 14:41:03 +01:00 committed by Arnaldo Carvalho de Melo
parent f4aef1ea26
commit c9ccc96bf6
1 changed files with 23 additions and 23 deletions
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46
tools/perf/arch/arm/util/cs-etm.c
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@ -607,6 +607,28 @@ static int cs_etm_get_ro(struct perf_pmu *pmu, int cpu, const char *path)
return val;
}
static void cs_etm_save_etmv4_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_ETMV4_TRCCONFIGR] = cs_etmv4_get_config(itr);
/* Get traceID from the framework */
data[CS_ETMV4_TRCTRACEIDR] = coresight_get_trace_id(cpu);
/* Get read-only information from sysFS */
data[CS_ETMV4_TRCIDR0] = cs_etm_get_ro(cs_etm_pmu, cpu,
metadata_etmv4_ro[CS_ETMV4_TRCIDR0]);
data[CS_ETMV4_TRCIDR1] = cs_etm_get_ro(cs_etm_pmu, cpu,
metadata_etmv4_ro[CS_ETMV4_TRCIDR1]);
data[CS_ETMV4_TRCIDR2] = cs_etm_get_ro(cs_etm_pmu, cpu,
metadata_etmv4_ro[CS_ETMV4_TRCIDR2]);
data[CS_ETMV4_TRCIDR8] = cs_etm_get_ro(cs_etm_pmu, cpu,
metadata_etmv4_ro[CS_ETMV4_TRCIDR8]);
data[CS_ETMV4_TRCAUTHSTATUS] = cs_etm_get_ro(cs_etm_pmu, cpu,
metadata_etmv4_ro[CS_ETMV4_TRCAUTHSTATUS]);
}
static void cs_etm_get_metadata(int cpu, u32 *offset,
struct auxtrace_record *itr,
struct perf_record_auxtrace_info *info)
@ -620,29 +642,7 @@ 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_etmv4(itr, cpu)) {
magic = __perf_cs_etmv4_magic;
/* Get trace configuration register */
info->priv[*offset + CS_ETMV4_TRCCONFIGR] =
cs_etmv4_get_config(itr);
/* Get traceID from the framework */
info->priv[*offset + CS_ETMV4_TRCTRACEIDR] =
coresight_get_trace_id(cpu);
/* Get read-only information from sysFS */
info->priv[*offset + CS_ETMV4_TRCIDR0] =
cs_etm_get_ro(cs_etm_pmu, cpu,
metadata_etmv4_ro[CS_ETMV4_TRCIDR0]);
info->priv[*offset + CS_ETMV4_TRCIDR1] =
cs_etm_get_ro(cs_etm_pmu, cpu,
metadata_etmv4_ro[CS_ETMV4_TRCIDR1]);
info->priv[*offset + CS_ETMV4_TRCIDR2] =
cs_etm_get_ro(cs_etm_pmu, cpu,
metadata_etmv4_ro[CS_ETMV4_TRCIDR2]);
info->priv[*offset + CS_ETMV4_TRCIDR8] =
cs_etm_get_ro(cs_etm_pmu, cpu,
metadata_etmv4_ro[CS_ETMV4_TRCIDR8]);
info->priv[*offset + CS_ETMV4_TRCAUTHSTATUS] =
cs_etm_get_ro(cs_etm_pmu, cpu,
metadata_etmv4_ro
[CS_ETMV4_TRCAUTHSTATUS]);
cs_etm_save_etmv4_header(&info->priv[*offset], itr, cpu);
/* How much space was used */
increment = CS_ETMV4_PRIV_MAX;