From: Leo Yan <leo.yan@linaro.org> To: Arnaldo Carvalho de Melo <acme@kernel.org>, Mathieu Poirier <mathieu.poirier@linaro.org>, Suzuki K Poulose <suzuki.poulose@arm.com>, Mike Leach <mike.leach@linaro.org>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>, Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Mark Rutland <mark.rutland@arm.com>, Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>, Daniel Kiss <Daniel.Kiss@arm.com>, Denis Nikitin <denik@chromium.org>, coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Leo Yan <leo.yan@linaro.org> Subject: [PATCH v1 4/7] perf cs-etm: Add PID format into metadata Date: Sat, 9 Jan 2021 15:44:32 +0800 [thread overview] Message-ID: <20210109074435.626855-5-leo.yan@linaro.org> (raw) In-Reply-To: <20210109074435.626855-1-leo.yan@linaro.org> It's possible for CoreSight to trace PID in either CONTEXTIDR_EL1 or CONTEXTIDR_EL2, the PID format info is used to distinguish the PID is traced in which register. This patch saves PID format into the metadata when record. Signed-off-by: Leo Yan <leo.yan@linaro.org> --- tools/perf/arch/arm/util/cs-etm.c | 21 +++++++++++++++++++++ tools/perf/util/cs-etm.c | 2 ++ tools/perf/util/cs-etm.h | 2 ++ 3 files changed, 25 insertions(+) diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c index fad7b6e13ccc..ee78df3b1b07 100644 --- a/tools/perf/arch/arm/util/cs-etm.c +++ b/tools/perf/arch/arm/util/cs-etm.c @@ -613,6 +613,7 @@ static void cs_etm_get_metadata(int cpu, u32 *offset, struct cs_etm_recording *ptr = container_of(itr, struct cs_etm_recording, itr); struct perf_pmu *cs_etm_pmu = ptr->cs_etm_pmu; + u64 pid_fmt; /* first see what kind of tracer this cpu is affined to */ if (cs_etm_is_etmv4(itr, cpu)) { @@ -641,6 +642,16 @@ static void cs_etm_get_metadata(int cpu, u32 *offset, metadata_etmv4_ro [CS_ETMV4_TRCAUTHSTATUS]); + /* + * The PID format will be used when decode the trace data; + * based on it the decoder will make decision for setting + * sample's PID as context_id or VMID. + */ + pid_fmt = perf_pmu__format_bits(&cs_etm_pmu->format, "pid"); + if (!pid_fmt) + pid_fmt = 1ULL << ETM_OPT_CTXTID; + info->priv[*offset + CS_ETMV4_PID_FMT] = pid_fmt; + /* How much space was used */ increment = CS_ETMV4_PRIV_MAX; } else { @@ -658,6 +669,16 @@ static void cs_etm_get_metadata(int cpu, u32 *offset, cs_etm_get_ro(cs_etm_pmu, cpu, metadata_etmv3_ro[CS_ETM_ETMIDR]); + /* + * The PID format will be used when decode the trace data; + * based on it the decoder will make decision for setting + * sample's PID as context_id or VMID. + */ + pid_fmt = perf_pmu__format_bits(&cs_etm_pmu->format, "pid"); + if (!pid_fmt) + pid_fmt = 1ULL << ETM_OPT_CTXTID; + info->priv[*offset + CS_ETM_PID_FMT] = pid_fmt; + /* How much space was used */ increment = CS_ETM_PRIV_MAX; } diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 5e284725dceb..763085db29ae 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -2447,6 +2447,7 @@ static const char * const cs_etm_priv_fmts[] = { [CS_ETM_ETMTRACEIDR] = " ETMTRACEIDR %llx\n", [CS_ETM_ETMCCER] = " ETMCCER %llx\n", [CS_ETM_ETMIDR] = " ETMIDR %llx\n", + [CS_ETM_PID_FMT] = " PID Format %llx\n", }; static const char * const cs_etmv4_priv_fmts[] = { @@ -2459,6 +2460,7 @@ 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_ETMV4_PID_FMT] = " PID Format %llx\n", }; static void cs_etm__print_auxtrace_info(__u64 *val, int num) diff --git a/tools/perf/util/cs-etm.h b/tools/perf/util/cs-etm.h index 4ad925d6d799..8cbbea6100a1 100644 --- a/tools/perf/util/cs-etm.h +++ b/tools/perf/util/cs-etm.h @@ -38,6 +38,7 @@ enum { /* RO, taken from sysFS */ CS_ETM_ETMCCER, CS_ETM_ETMIDR, + CS_ETM_PID_FMT, CS_ETM_PRIV_MAX, }; @@ -52,6 +53,7 @@ enum { CS_ETMV4_TRCIDR2, CS_ETMV4_TRCIDR8, CS_ETMV4_TRCAUTHSTATUS, + CS_ETMV4_PID_FMT, CS_ETMV4_PRIV_MAX, }; -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Leo Yan <leo.yan@linaro.org> To: Arnaldo Carvalho de Melo <acme@kernel.org>, Mathieu Poirier <mathieu.poirier@linaro.org>, Suzuki K Poulose <suzuki.poulose@arm.com>, Mike Leach <mike.leach@linaro.org>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>, Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Mark Rutland <mark.rutland@arm.com>, Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>, Daniel Kiss <Daniel.Kiss@arm.com>, Denis Nikitin <denik@chromium.org>, coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Leo Yan <leo.yan@linaro.org> Subject: [PATCH v1 4/7] perf cs-etm: Add PID format into metadata Date: Sat, 9 Jan 2021 15:44:32 +0800 [thread overview] Message-ID: <20210109074435.626855-5-leo.yan@linaro.org> (raw) In-Reply-To: <20210109074435.626855-1-leo.yan@linaro.org> It's possible for CoreSight to trace PID in either CONTEXTIDR_EL1 or CONTEXTIDR_EL2, the PID format info is used to distinguish the PID is traced in which register. This patch saves PID format into the metadata when record. Signed-off-by: Leo Yan <leo.yan@linaro.org> --- tools/perf/arch/arm/util/cs-etm.c | 21 +++++++++++++++++++++ tools/perf/util/cs-etm.c | 2 ++ tools/perf/util/cs-etm.h | 2 ++ 3 files changed, 25 insertions(+) diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c index fad7b6e13ccc..ee78df3b1b07 100644 --- a/tools/perf/arch/arm/util/cs-etm.c +++ b/tools/perf/arch/arm/util/cs-etm.c @@ -613,6 +613,7 @@ static void cs_etm_get_metadata(int cpu, u32 *offset, struct cs_etm_recording *ptr = container_of(itr, struct cs_etm_recording, itr); struct perf_pmu *cs_etm_pmu = ptr->cs_etm_pmu; + u64 pid_fmt; /* first see what kind of tracer this cpu is affined to */ if (cs_etm_is_etmv4(itr, cpu)) { @@ -641,6 +642,16 @@ static void cs_etm_get_metadata(int cpu, u32 *offset, metadata_etmv4_ro [CS_ETMV4_TRCAUTHSTATUS]); + /* + * The PID format will be used when decode the trace data; + * based on it the decoder will make decision for setting + * sample's PID as context_id or VMID. + */ + pid_fmt = perf_pmu__format_bits(&cs_etm_pmu->format, "pid"); + if (!pid_fmt) + pid_fmt = 1ULL << ETM_OPT_CTXTID; + info->priv[*offset + CS_ETMV4_PID_FMT] = pid_fmt; + /* How much space was used */ increment = CS_ETMV4_PRIV_MAX; } else { @@ -658,6 +669,16 @@ static void cs_etm_get_metadata(int cpu, u32 *offset, cs_etm_get_ro(cs_etm_pmu, cpu, metadata_etmv3_ro[CS_ETM_ETMIDR]); + /* + * The PID format will be used when decode the trace data; + * based on it the decoder will make decision for setting + * sample's PID as context_id or VMID. + */ + pid_fmt = perf_pmu__format_bits(&cs_etm_pmu->format, "pid"); + if (!pid_fmt) + pid_fmt = 1ULL << ETM_OPT_CTXTID; + info->priv[*offset + CS_ETM_PID_FMT] = pid_fmt; + /* How much space was used */ increment = CS_ETM_PRIV_MAX; } diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c index 5e284725dceb..763085db29ae 100644 --- a/tools/perf/util/cs-etm.c +++ b/tools/perf/util/cs-etm.c @@ -2447,6 +2447,7 @@ static const char * const cs_etm_priv_fmts[] = { [CS_ETM_ETMTRACEIDR] = " ETMTRACEIDR %llx\n", [CS_ETM_ETMCCER] = " ETMCCER %llx\n", [CS_ETM_ETMIDR] = " ETMIDR %llx\n", + [CS_ETM_PID_FMT] = " PID Format %llx\n", }; static const char * const cs_etmv4_priv_fmts[] = { @@ -2459,6 +2460,7 @@ 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_ETMV4_PID_FMT] = " PID Format %llx\n", }; static void cs_etm__print_auxtrace_info(__u64 *val, int num) diff --git a/tools/perf/util/cs-etm.h b/tools/perf/util/cs-etm.h index 4ad925d6d799..8cbbea6100a1 100644 --- a/tools/perf/util/cs-etm.h +++ b/tools/perf/util/cs-etm.h @@ -38,6 +38,7 @@ enum { /* RO, taken from sysFS */ CS_ETM_ETMCCER, CS_ETM_ETMIDR, + CS_ETM_PID_FMT, CS_ETM_PRIV_MAX, }; @@ -52,6 +53,7 @@ enum { CS_ETMV4_TRCIDR2, CS_ETMV4_TRCIDR8, CS_ETMV4_TRCAUTHSTATUS, + CS_ETMV4_PID_FMT, CS_ETMV4_PRIV_MAX, }; -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-01-09 7:45 UTC|newest] Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-09 7:44 [PATCH v1 0/7] coresight: etm-perf: Fix pid tracing with VHE Leo Yan 2021-01-09 7:44 ` Leo Yan 2021-01-09 7:44 ` [PATCH v1 1/7] coresight: etm-perf: Add support for PID tracing for kernel at EL2 Leo Yan 2021-01-09 7:44 ` Leo Yan 2021-01-09 10:05 ` kernel test robot 2021-01-10 1:24 ` [PATCH] " Suzuki K Poulose 2021-01-10 1:41 ` Leo Yan 2021-01-10 22:34 ` Suzuki K Poulose 2021-01-11 0:05 ` Leo Yan 2021-01-09 11:24 ` [PATCH v1 1/7] " kernel test robot 2021-01-11 16:22 ` Mike Leach 2021-01-11 16:22 ` Mike Leach 2021-01-12 7:22 ` Leo Yan 2021-01-12 7:22 ` Leo Yan 2021-01-12 8:58 ` Leo Yan 2021-01-12 8:58 ` Leo Yan 2021-01-12 11:03 ` Suzuki K Poulose 2021-01-12 11:03 ` Suzuki K Poulose 2021-01-12 11:23 ` Mike Leach 2021-01-12 11:23 ` Mike Leach 2021-01-12 14:14 ` Leo Yan 2021-01-12 14:14 ` Leo Yan 2021-01-12 23:43 ` Mike Leach 2021-01-12 23:43 ` Mike Leach 2021-01-15 22:30 ` Mathieu Poirier 2021-01-15 22:30 ` Mathieu Poirier 2021-01-19 7:05 ` Suzuki K Poulose 2021-01-19 7:05 ` Suzuki K Poulose 2021-01-09 7:44 ` [PATCH v1 2/7] perf cs_etm: Use pid tracing explicitly instead of contextid Leo Yan 2021-01-09 7:44 ` Leo Yan 2021-01-15 22:44 ` Mathieu Poirier 2021-01-15 22:44 ` Mathieu Poirier 2021-01-19 2:32 ` Leo Yan 2021-01-19 2:32 ` Leo Yan 2021-01-09 7:44 ` [PATCH v1 3/7] perf cs-etm: Calculate per CPU metadata array size Leo Yan 2021-01-09 7:44 ` Leo Yan 2021-01-11 7:28 ` Suzuki K Poulose 2021-01-11 7:28 ` Suzuki K Poulose 2021-01-11 12:09 ` Mike Leach 2021-01-11 12:09 ` Mike Leach 2021-01-11 15:06 ` Leo Yan 2021-01-11 15:06 ` Leo Yan 2021-01-13 0:00 ` Mike Leach 2021-01-13 0:00 ` Mike Leach 2021-01-13 2:27 ` Leo Yan 2021-01-13 2:27 ` Leo Yan 2021-01-15 22:46 ` Mathieu Poirier 2021-01-15 22:46 ` Mathieu Poirier 2021-01-16 0:50 ` Leo Yan 2021-01-16 0:50 ` Leo Yan 2021-01-09 7:44 ` Leo Yan [this message] 2021-01-09 7:44 ` [PATCH v1 4/7] perf cs-etm: Add PID format into metadata Leo Yan 2021-01-11 9:45 ` Suzuki K Poulose 2021-01-11 9:45 ` Suzuki K Poulose 2021-01-11 13:12 ` Leo Yan 2021-01-11 13:12 ` Leo Yan 2021-01-09 7:44 ` [PATCH v1 5/7] perf cs-etm: Fixup PID_FMT when it is zero Leo Yan 2021-01-09 7:44 ` Leo Yan 2021-01-11 9:47 ` Suzuki K Poulose 2021-01-11 9:47 ` Suzuki K Poulose 2021-01-09 7:44 ` [PATCH v1 6/7] perf cs-etm: Add helper cs_etm__get_pid_fmt() Leo Yan 2021-01-09 7:44 ` Leo Yan 2021-01-11 9:55 ` Suzuki K Poulose 2021-01-11 9:55 ` Suzuki K Poulose 2021-01-09 7:44 ` [PATCH v1 7/7] perf cs-etm: Detect pid in VMID for kernel running at EL2 Leo Yan 2021-01-09 7:44 ` Leo Yan 2021-01-11 10:07 ` Suzuki K Poulose 2021-01-11 10:07 ` Suzuki K Poulose 2021-01-11 13:10 ` Leo Yan 2021-01-11 13:10 ` Leo Yan 2021-01-11 18:16 ` [PATCH v1 0/7] coresight: etm-perf: Fix pid tracing with VHE Mathieu Poirier 2021-01-11 18:16 ` Mathieu Poirier 2021-01-12 7:23 ` Leo Yan 2021-01-12 7:23 ` Leo Yan
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