Jiri Olsa [jo...@redhat.com] wrote:
| Maybe it'd worth to mention, that it does not need to be just 'event',
| but anything from /sys/bus/event_source/devices/<dev>/format directory,
| like
|
| The can be multiple terms like 'event=0xNNNN' specified
| and separated with comma. All available terms are located
| in /sys/bus/event_source/devices/<dev>/format file.
|
| Please feel free to rephrase or use proper English ;-)
|
| otherwise it's ok,
| jirka
Agree. Thanks for the review. Here is the updated patch.
---
>From 1e3cc6b3ef87f533985b10574af472361e39eecd Mon Sep 17 00:00:00 2001
From: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com>
Date: Tue, 8 Jan 2013 22:31:49 -0800
Subject: [PATCH] perf: Document the ABI of perf sysfs entries
This patchset addes two new sets of files to sysfs for POWER architecture.
- perf event config format in /sys/devices/cpu/format/event
- generic and POWER-specific perf events in /sys/devices/cpu/events/
The format of the first file is already documented in:
sysfs-bus-event_source-devices-format
Document the format of the second set of files '/sys/devices/cpu/events/*'
which would also become part of the ABI.
Changelog[v3.2]: (small changes to this one patch).
[Jiri Olsa]: Mention that multiple event= like terms can be specified
in the 'events' file.
Changelog[v3.1]:
(small changes to just this one patch).
[Jiri Olsa]: Remove the documentation for the 'config format' file
as it is already documented in 'Documentation/ABI/testing/'.
[Jiri Olsa]: Move the documentation of 'events' also to 'testing'
from 'stable'.
Changelog[v3]:
[Greg KH] Include ABI documentation.
Signed-off-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com>
---
.../testing/sysfs-bus-event_source-devices-events | 62 ++++++++++++++++++++
1 files changed, 62 insertions(+), 0 deletions(-)
delete mode 100644 Documentation/ABI/stable/sysfs-devices-cpu-events
create mode 100644
Documentation/ABI/testing/sysfs-bus-event_source-devices-events
diff --git a/Documentation/ABI/stable/sysfs-devices-cpu-events
b/Documentation/ABI/stable/sysfs-devices-cpu-events
deleted file mode 100644
index e69de29..0000000
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
new file mode 100644
index 0000000..0adeb52
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events
@@ -0,0 +1,62 @@
+What: /sys/devices/cpu/events/
+ /sys/devices/cpu/events/branch-misses
+ /sys/devices/cpu/events/cache-references
+ /sys/devices/cpu/events/cache-misses
+ /sys/devices/cpu/events/stalled-cycles-frontend
+ /sys/devices/cpu/events/branch-instructions
+ /sys/devices/cpu/events/stalled-cycles-backend
+ /sys/devices/cpu/events/instructions
+ /sys/devices/cpu/events/cpu-cycles
+
+Date: 2013/01/08
+
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+
+Description: Generic performance monitoring events
+
+ A collection of performance monitoring events that may be
+ supported by many/most CPUs. These events can be monitored
+ using the 'perf(1)' tool.
+
+ The contents of each file would look like:
+
+ event=0xNNNN
+
+ where 'N' is a hex digit and the number '0xNNNN' shows the
+ "raw code" for the perf event identified by the file's
+ "basename".
+
+
+What: /sys/devices/cpu/events/PM_LD_MISS_L1
+ /sys/devices/cpu/events/PM_LD_REF_L1
+ /sys/devices/cpu/events/PM_CYC
+ /sys/devices/cpu/events/PM_BRU_FIN
+ /sys/devices/cpu/events/PM_GCT_NOSLOT_CYC
+ /sys/devices/cpu/events/PM_BRU_MPRED
+ /sys/devices/cpu/events/PM_INST_CMPL
+ /sys/devices/cpu/events/PM_CMPLU_STALL
+
+Date: 2013/01/08
+
+Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
+ Linux Powerpc mailing list <linuxppc-...@ozlabs.org>
+
+Description: POWER-systems specific performance monitoring events
+
+ A collection of performance monitoring events that may be
+ supported by the POWER CPU. These events can be monitored
+ using the 'perf(1)' tool.
+
+ These events may not be supported by other CPUs.
+
+ The contents of each file would look like:
+
+ event=0xNNNN
+
+ where 'N' is a hex digit and the number '0xNNNN' shows the
+ "raw code" for the perf event identified by the file's
+ "basename".
+
+ Further, multiple terms like 'event=0xNNNN' can be specified
+ and separated with comma. All available terms are defined in
+ the /sys/bus/event_source/devices/<dev>/format file.
--
1.7.1
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