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authorCody P Schafer <cody@linux.vnet.ibm.com>2014-03-14 16:00:44 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-03-24 09:48:33 +1100
commitad0a02b834777f2e107bfd2f3fa240cd7335cc59 (patch)
tree308f91b2091ff06dc0a19e0a0d405017755cbef1 /Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7
parent30daeb6c8f54841274d1845b85c41f44165b3755 (diff)
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@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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+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.