linux-kernel - [PATCH 2/4] docs: ABI: sysfs-bus-event_source-devices-vpa-pmu: Document sysfs event format entries for vpa

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Message-ID: <20241114084013.1140010-2-kjain@linux.ibm.com>
Date: Thu, 14 Nov 2024 14:10:11 +0530
From: Kajol Jain <kjain@...ux.ibm.com>
To: mpe@...erman.id.au, maddy@...ux.ibm.com
Cc: atrajeev@...ux.vnet.ibm.com, kjain@...ux.ibm.com, disgoel@...ux.ibm.com,
        hbathini@...ux.ibm.com, adubey@...ux.ibm.com, gautam@...ux.ibm.com,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] docs: ABI: sysfs-bus-event_source-devices-vpa-pmu: Document sysfs event format entries for vpa_pmu

Details are added for the vpa_pmu event and format
attributes in the ABI documentation.

Signed-off-by: Kajol Jain <kjain@...ux.ibm.com>
Co-developed-by: Madhavan Srinivasan <maddy@...ux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@...ux.ibm.com>
---
 .../sysfs-bus-event_source-devices-vpa-pmu    | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-pmu

diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-pmu b/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-pmu
new file mode 100644
index 000000000000..8285263ff78d
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-vpa-pmu
@@ -0,0 +1,24 @@
+What:           /sys/bus/event_source/devices/vpa_pmu/format
+Date:           November 2024
+Contact:        Linux on PowerPC Developer List <linuxppc-dev@...ts.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:0-31" - event ID
+
+		For example::
+
+		  l1_to_l2_lat = "event=0x1"
+
+What:           /sys/bus/event_source/devices/vpa_pmu/events
+Date:           November 2024
+Contact:        Linux on PowerPC Developer List <linuxppc-dev@...ts.ozlabs.org>
+Description:	Read-only. Attribute group to describe performance monitoring
+               events for the Virtual Processor Area events. Each attribute
+		in this group describes a single performance monitoring event
+		supported by vpa_pmu. The name of the file is the name of
+		the event (See ABI/testing/sysfs-bus-event_source-devices-events).
-- 
2.43.5