arm: perf: probe number of counters on affine CPUs

Browse source

In heterogeneous systems, the number of counters may differ across
clusters. To find the number of counters for a cluster, we must probe
the PMU from a CPU in that cluster.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

...

This commit is contained in:

Mark Rutland 2015-05-13 17:12:27 +01:00 • committed by Will Deacon

parent c904e32a69

commit 0e3038d18a

1 changed files with 23 additions and 25 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

48

arch/arm/kernel/perf_event_v7.c

View file