tree d558a2f8b991577f6f59b6e71e7d3c756b7f0fa2
parent 23e94994464a7281838785675e09c8ed1055f62f
author Mark Rutland <mark.rutland@arm.com> 1436181834 +0100
committer Will Deacon <will.deacon@arm.com> 1437991719 +0100

arm64: perf: factor out callchain code

We currently bundle the callchain handling code with the PMU code,
despite the fact the two are distinct, and the former can be useful even
in the absence of the latter.

Follow the example of arch/arm and factor the callchain handling into
its own file dependent on CONFIG_PERF_EVENTS rather than
CONFIG_HW_PERF_EVENTS.

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