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 6/7] perf cs-etm: Add helper cs_etm__get_pid_fmt()
Date: Sat, 9 Jan 2021 15:44:34 +0800 [thread overview]
Message-ID: <20210109074435.626855-7-leo.yan@linaro.org> (raw)
In-Reply-To: <20210109074435.626855-1-leo.yan@linaro.org>
This patch adds helper function cs_etm__get_pid_fmt(), by passing
parameter "traceID", it returns the corresponding PID format.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
tools/perf/util/cs-etm.c | 18 ++++++++++++++++++
tools/perf/util/cs-etm.h | 1 +
2 files changed, 19 insertions(+)
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index 8c125134a756..6705d39c8cee 100644
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -157,6 +157,24 @@ int cs_etm__get_cpu(u8 trace_chan_id, int *cpu)
return 0;
}
+int cs_etm__get_pid_fmt(u8 trace_chan_id, u64 *pid_fmt)
+{
+ struct int_node *inode;
+ u64 *metadata;
+
+ inode = intlist__find(traceid_list, trace_chan_id);
+ if (!inode)
+ return -EINVAL;
+
+ metadata = inode->priv;
+ if (metadata[CS_ETM_MAGIC] == __perf_cs_etmv3_magic)
+ *pid_fmt = metadata[CS_ETM_PID_FMT];
+ else
+ *pid_fmt = metadata[CS_ETMV4_PID_FMT];
+
+ return 0;
+}
+
void cs_etm__etmq_set_traceid_queue_timestamp(struct cs_etm_queue *etmq,
u8 trace_chan_id)
{
diff --git a/tools/perf/util/cs-etm.h b/tools/perf/util/cs-etm.h
index 8cbbea6100a1..98801040175f 100644
--- a/tools/perf/util/cs-etm.h
+++ b/tools/perf/util/cs-etm.h
@@ -175,6 +175,7 @@ struct cs_etm_packet_queue {
int cs_etm__process_auxtrace_info(union perf_event *event,
struct perf_session *session);
int cs_etm__get_cpu(u8 trace_chan_id, int *cpu);
+int cs_etm__get_pid_fmt(u8 trace_chan_id, u64 *pid_fmt);
int cs_etm__etmq_set_tid(struct cs_etm_queue *etmq,
pid_t tid, u8 trace_chan_id);
bool cs_etm__etmq_is_timeless(struct cs_etm_queue *etmq);
--
2.25.1
next prev parent reply other threads:[~2021-01-09 7:46 UTC|newest]
Thread overview: 34+ 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 ` [PATCH v1 1/7] coresight: etm-perf: Add support for PID tracing for kernel at EL2 Leo Yan
2021-01-11 16:22 ` Mike Leach
2021-01-12 7:22 ` Leo Yan
2021-01-12 8:58 ` Leo Yan
2021-01-12 11:03 ` Suzuki K Poulose
2021-01-12 11:23 ` Mike Leach
2021-01-12 14:14 ` Leo Yan
2021-01-12 23:43 ` Mike Leach
2021-01-15 22:30 ` Mathieu Poirier
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
2021-01-15 22:44 ` Mathieu Poirier
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
2021-01-11 7:28 ` Suzuki K Poulose
2021-01-11 12:09 ` Mike Leach
2021-01-11 15:06 ` Leo Yan
2021-01-13 0:00 ` Mike Leach
2021-01-13 2:27 ` Leo Yan
2021-01-15 22:46 ` Mathieu Poirier
2021-01-16 0:50 ` Leo Yan
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 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
2021-01-11 9:47 ` Suzuki K Poulose
2021-01-09 7:44 ` Leo Yan [this message]
2021-01-11 9:55 ` [PATCH v1 6/7] perf cs-etm: Add helper cs_etm__get_pid_fmt() 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
2021-01-11 10:07 ` Suzuki K Poulose
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
2021-01-12 7:23 ` Leo Yan
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