From: Athira Rajeev <atrajeev@linux.ibm.com>
To: maddy@linux.ibm.com, linuxppc-dev@lists.ozlabs.org
Cc: acme@kernel.org, jolsa@kernel.org, adrian.hunter@intel.com,
irogers@google.com, namhyung@kernel.org,
linux-perf-users@vger.kernel.org, aboorvad@linux.ibm.com,
sshegde@linux.ibm.com, atrajeev@linux.ibm.com,
hbathini@linux.vnet.ibm.com, Aditya.Bodkhe1@ibm.com,
venkat88@linux.ibm.com, Tejas.Manhas1@ibm.com,
Kajol Jain <kjain@linux.ibm.com>
Subject: [PATCH V2 3/7] docs: ABI: sysfs-bus-event_source-devices-vpa-dtl: Document sysfs event format entries for vpa_dtl pmu
Date: Mon, 15 Sep 2025 12:52:20 +0530 [thread overview]
Message-ID: <20250915072224.98958-4-atrajeev@linux.ibm.com> (raw)
In-Reply-To: <20250915072224.98958-1-atrajeev@linux.ibm.com>
From: Kajol Jain <kjain@linux.ibm.com>
Details are added for the vpa_dtl pmu event and format
attributes in the ABI documentation.
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
---
.../sysfs-bus-event_source-devices-vpa-dtl | 25 +++++++++++++++++++
1 file changed, 25 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-dtl
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-dtl b/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-dtl
new file mode 100644
index 000000000000..7b7c789a5cf5
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-dtl
@@ -0,0 +1,25 @@
+What: /sys/bus/event_source/devices/vpa_dtl/format
+Date: February 2025
+Contact: Linux on PowerPC Developer List <linuxppc-dev at lists.ozlabs.org>
+Description: Read-only. Attribute group to describe the magic bits
+ that go into perf_event_attr.config for a particular pmu.
+ (See ABI/testing/sysfs-bus-event_source-devices-format).
+
+ Each attribute under this group defines a bit range of the
+ perf_event_attr.config. Supported attribute are listed
+ below::
+
+ event = "config:0-7" - event ID
+
+ For example::
+
+ dtl_cede = "event=0x1"
+
+What: /sys/bus/event_source/devices/vpa_dtl/events
+Date: February 2025
+Contact: Linux on PowerPC Developer List <linuxppc-dev at lists.ozlabs.org>
+Description: (RO) Attribute group to describe performance monitoring events
+ for the Virtual Processor Dispatch Trace Log. Each attribute in
+ this group describes a single performance monitoring event
+ supported by vpa_dtl pmu. The name of the file is the name of
+ the event (See ABI/testing/sysfs-bus-event_source-devices-events).
--
2.47.1
next prev parent reply other threads:[~2025-09-15 7:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-15 7:22 [PATCH V2 0/7] Add interface to expose vpa dtl counters via Athira Rajeev
2025-09-15 7:22 ` [PATCH V2 1/7] powerpc/time: Expose boot_tb via accessor Athira Rajeev
2025-09-15 7:22 ` [PATCH V2 2/7] powerpc/vpa_dtl: Add interface to expose vpa dtl counters via perf Athira Rajeev
2025-09-15 7:22 ` Athira Rajeev [this message]
2025-09-15 7:22 ` [PATCH V2 4/7] powerpc/perf/vpa-dtl: Add support to setup and free aux buffer for capturing DTL data Athira Rajeev
2025-09-15 7:22 ` [PATCH V2 5/7] powerpc/perf/vpa-dtl: Add support to capture DTL data in aux buffer Athira Rajeev
2025-09-15 7:22 ` [PATCH V2 6/7] powerpc/perf/vpa-dtl: Handle the writing of perf record when aux wake up is needed Athira Rajeev
2025-09-15 7:22 ` [PATCH V2 7/7] powerpc/perf/vpa-dtl: Add documentation for VPA dispatch trace log PMU Athira Rajeev
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