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Kajol Jain 09b791d955 powerpc/hv-gpci: Add sysfs files inside hv-gpci device to show cpumask
Patch here adds a cpumask attr to hv_gpci pmu along with ABI documentation.

Primary use to expose the cpumask is for the perf tool which has the
capability to parse the driver sysfs folder and understand the
cpumask file. Having cpumask file will reduce the number of perf command
line parameters (will avoid "-C" option in the perf tool
command line). It can also notify the user which is
the current cpu used to retrieve the counter data.

command:# cat /sys/devices/hv_gpci/cpumask
0

Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201003074943.338618-5-kjain@linux.ibm.com
2020-10-07 22:34:49 +11:00
Documentation powerpc/hv-gpci: Add sysfs files inside hv-gpci device to show cpumask 2020-10-07 22:34:49 +11:00
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arch powerpc/hv-gpci: Add sysfs files inside hv-gpci device to show cpumask 2020-10-07 22:34:49 +11:00
block
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drivers serial: pmac_zilog: use for_each_child_of_node() macro 2020-09-18 19:59:44 +10:00
fs mm: fix exec activate_mm vs TLB shootdown and lazy tlb switching race 2020-09-16 12:24:31 +10:00
include powerpc/perf/hv-gpci: Add cpu hotplug support 2020-10-07 22:34:48 +11:00
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tools selftests/powerpc: Add a rtas_filter selftest 2020-10-06 23:22:27 +11:00
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