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Date: Wed, 5 Mar 2014 16:01:10 -0800 From: Cody P Schafer <cody@...ux.vnet.ibm.com> To: Linux PPC <linuxppc-dev@...ts.ozlabs.org>, Cody P Schafer <cody@...ux.vnet.ibm.com> Cc: LKML <linux-kernel@...r.kernel.org>, Paul Mackerras <paulus@...ba.org>, Arnaldo Carvalho de Melo <acme@...stprotocols.net>, Ingo Molnar <mingo@...hat.com>, Benjamin Herrenschmidt <benh@...nel.crashing.org>, Michael Ellerman <michael@...erman.id.au>, scottwood@...escale.com, Peter Zijlstra <peterz@...radead.org>, linux-doc@...r.kernel.org, Rob Landley <rob@...dley.net> Subject: [PATCH v4 11/11] powerpc/perf/hv_{gpci,24x7}: add documentation of device attributes gpci and 24x7 expose some device specific attributes. Add some documentation for them. Signed-off-by: Cody P Schafer <cody@...ux.vnet.ibm.com> --- .../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@...ux.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@...ux.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@...ux.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@...ux.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@...ux.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@...ux.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@...ux.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@...ux.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@...ux.vnet.ibm.com> +Description: + A number indicating the latest version of the gpci interface + that the kernel is aware of. -- 1.9.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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