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From: Michael Ellerman <mpe@ellerman.id.au>
To: <linuxppc-dev@ozlabs.org>
Cc: cody@linux.vnet.ibm.com, khandual@linux.vnet.ibm.com
Subject: [PATCH 19/20] powerpc/perf/hv_{gpci, 24x7}: Add documentation of device attributes
Date: Fri, 14 Mar 2014 16:00:44 +1100	[thread overview]
Message-ID: <1394773245-18328-20-git-send-email-mpe@ellerman.id.au> (raw)
In-Reply-To: <1394773245-18328-1-git-send-email-mpe@ellerman.id.au>

From: Cody P Schafer <cody@linux.vnet.ibm.com>

gpci and 24x7 expose some device specific attributes. Add some
documentation for them.

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 .../testing/sysfs-bus-event_source-devices-hv_24x7 | 23 ++++++++++++
 .../testing/sysfs-bus-event_source-devices-hv_gpci | 43 ++++++++++++++++++++++
 2 files changed, 66 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7
 create mode 100644 Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci

diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7
new file mode 100644
index 0000000..e78ee79
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7
@@ -0,0 +1,23 @@
+What:		/sys/bus/event_source/devices/hv_24x7/interface/catalog
+Date:		February 2014
+Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
+Description:
+		Provides access to the binary "24x7 catalog" provided by the
+		hypervisor on POWER7 and 8 systems. This catalog lists events
+		avaliable from the powerpc "hv_24x7" pmu. Its format is
+		documented here:
+		https://raw.githubusercontent.com/jmesmon/catalog-24x7/master/hv-24x7-catalog.h
+
+What:		/sys/bus/event_source/devices/hv_24x7/interface/catalog_length
+Date:		February 2014
+Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
+Description:
+		A number equal to the length in bytes of the catalog. This is
+		also extractable from the provided binary "catalog" sysfs entry.
+
+What:		/sys/bus/event_source/devices/hv_24x7/interface/catalog_version
+Date:		February 2014
+Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
+Description:
+		Exposes the "version" field of the 24x7 catalog. This is also
+		extractable from the provided binary "catalog" sysfs entry.
diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci
new file mode 100644
index 0000000..3fa58c2
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci
@@ -0,0 +1,43 @@
+What:		/sys/bus/event_source/devices/hv_gpci/interface/collect_privileged
+Date:		February 2014
+Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
+Description:
+		'0' if the hypervisor is configured to forbid access to event
+		counters being accumulated by other guests and to physical
+		domain event counters.
+		'1' if that access is allowed.
+
+What:		/sys/bus/event_source/devices/hv_gpci/interface/ga
+Date:		February 2014
+Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
+Description:
+		0 or 1. Indicates whether we have access to "GA" events (listed
+		in arch/powerpc/perf/hv-gpci.h).
+
+What:		/sys/bus/event_source/devices/hv_gpci/interface/expanded
+Date:		February 2014
+Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
+Description:
+		0 or 1. Indicates whether we have access to "EXPANDED" events (listed
+		in arch/powerpc/perf/hv-gpci.h).
+
+What:		/sys/bus/event_source/devices/hv_gpci/interface/lab
+Date:		February 2014
+Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
+Description:
+		0 or 1. Indicates whether we have access to "LAB" events (listed
+		in arch/powerpc/perf/hv-gpci.h).
+
+What:		/sys/bus/event_source/devices/hv_gpci/interface/version
+Date:		February 2014
+Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
+Description:
+		A number indicating the version of the gpci interface that the
+		hypervisor reports supporting.
+
+What:		/sys/bus/event_source/devices/hv_gpci/interface/kernel_version
+Date:		February 2014
+Contact:	Cody P Schafer <cody@linux.vnet.ibm.com>
+Description:
+		A number indicating the latest version of the gpci interface
+		that the kernel is aware of.
-- 
1.8.3.2

  parent reply	other threads:[~2014-03-14  5:00 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-14  5:00 powerpc/perf: patches for 3.15 Michael Ellerman
2014-03-14  5:00 ` [PATCH 01/20] powerpc/perf: Make some new raw event codes available in sysfs Michael Ellerman
2014-03-14  5:00 ` [PATCH 02/20] powerpc/perf: Define perf_event_print_debug() to print PMU register values Michael Ellerman
2014-03-14  5:00 ` [PATCH 03/20] powerpc: Add a cpu feature CPU_FTR_PMAO_BUG Michael Ellerman
2014-03-14  5:00 ` [PATCH 04/20] powerpc/perf: Add lost exception workaround Michael Ellerman
2014-03-14  5:00 ` [PATCH 05/20] powerpc/perf: Reject EBB events which specify a sample_type Michael Ellerman
2014-03-14  5:00 ` [PATCH 06/20] powerpc/perf: Clean up the EBB hash defines a little Michael Ellerman
2014-03-14  5:00 ` [PATCH 07/20] powerpc/perf: Avoid mutating event in power8_get_constraint() Michael Ellerman
2014-03-14  5:00 ` [PATCH 08/20] powerpc/perf: Add BHRB constraint and IFM MMCRA handling for EBB Michael Ellerman
2014-03-14  5:00 ` [PATCH 09/20] powerpc/perf: Enable BHRB access for EBB events Michael Ellerman
2014-03-14  5:00 ` [PATCH 10/20] sysfs: create bin_attributes under the requested group Michael Ellerman
2014-03-14  5:00 ` [PATCH 11/20] powerpc: Add hvcalls for 24x7 and gpci (Get Performance Counter Info) Michael Ellerman
2014-03-14  5:00 ` [PATCH 12/20] powerpc/perf: Add hv_gpci interface header Michael Ellerman
2014-03-14  5:00 ` [PATCH 13/20] powerpc/perf: Add 24x7 interface headers Michael Ellerman
2014-03-14  5:00 ` [PATCH 14/20] powerpc/perf: Add a shared interface to get gpci version and capabilities Michael Ellerman
2014-03-14  5:00 ` [PATCH 15/20] powerpc/perf: Add macros for defining event fields & formats Michael Ellerman
2014-03-14  5:00 ` [PATCH 16/20] powerpc/perf: Add support for the hv gpci (get performance counter info) interface Michael Ellerman
2014-03-14  5:00 ` [PATCH 17/20] powerpc/perf: Add support for the hv 24x7 interface Michael Ellerman
2014-03-14  5:00 ` [PATCH 18/20] powerpc/perf: Add kconfig option for hypervisor provided counters Michael Ellerman
2014-03-14  5:00 ` Michael Ellerman [this message]
2014-03-14  5:00 ` [PATCH 20/20] powerpc/perf: Fix handling of L3 events with bank == 1 Michael Ellerman

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