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powerpc/perf: Factor out event_alternative function

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Factor out the power8 event_alternative function to share
the code with power9.

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Madhavan Srinivasan
2017-02-12 22:33:10 +05:30
committed by Michael Ellerman
parent 753843471c
commit efe881afdd
3 changed files with 41 additions and 33 deletions
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3
arch/powerpc/perf/isa207-common.h
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@@ -260,5 +260,8 @@ int isa207_compute_mmcr(u64 event[], int n_ev,
unsigned int hwc[], unsigned long mmcr[],
struct perf_event *pevents[]);
void isa207_disable_pmc(unsigned int pmc, unsigned long mmcr[]);
int isa207_get_alternatives(u64 event, u64 alt[],
const unsigned int ev_alt[][MAX_ALT], int size);
#endif