diff options
author | Madhavan Srinivasan <maddy@linux.vnet.ibm.com> | 2017-02-12 22:33:10 +0530 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-02-17 21:48:47 +1100 |
commit | efe881afdd9996ccbcd2a09c93b724f4ffc25991 (patch) | |
tree | 734d6b71f83e335f7236ca5f8567d74ccf2581f1 /arch/powerpc/perf/power8-pmu.c | |
parent | 753843471cbbaeca25a5cab51981ee721ad272f7 (diff) | |
download | linux-efe881afdd9996ccbcd2a09c93b724f4ffc25991.tar.bz2 |
powerpc/perf: Factor out event_alternative function
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>
Diffstat (limited to 'arch/powerpc/perf/power8-pmu.c')
-rw-r--r-- | arch/powerpc/perf/power8-pmu.c | 35 |
1 files changed, 2 insertions, 33 deletions
diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c index d07186382f3a..ce15b19a7962 100644 --- a/arch/powerpc/perf/power8-pmu.c +++ b/arch/powerpc/perf/power8-pmu.c @@ -48,43 +48,12 @@ static const unsigned int event_alternatives[][MAX_ALT] = { { PM_RUN_INST_CMPL_ALT, PM_RUN_INST_CMPL }, }; -/* - * Scan the alternatives table for a match and return the - * index into the alternatives table if found, else -1. - */ -static int find_alternative(u64 event) -{ - int i, j; - - for (i = 0; i < ARRAY_SIZE(event_alternatives); ++i) { - if (event < event_alternatives[i][0]) - break; - - for (j = 0; j < MAX_ALT && event_alternatives[i][j]; ++j) - if (event == event_alternatives[i][j]) - return i; - } - - return -1; -} - static int power8_get_alternatives(u64 event, unsigned int flags, u64 alt[]) { int i, j, num_alt = 0; - u64 alt_event; - - alt[num_alt++] = event; - - i = find_alternative(event); - if (i >= 0) { - /* Filter out the original event, it's already in alt[0] */ - for (j = 0; j < MAX_ALT; ++j) { - alt_event = event_alternatives[i][j]; - if (alt_event && alt_event != event) - alt[num_alt++] = alt_event; - } - } + num_alt = isa207_get_alternatives(event, alt, event_alternatives, + (int)ARRAY_SIZE(event_alternatives)); if (flags & PPMU_ONLY_COUNT_RUN) { /* * We're only counting in RUN state, so PM_CYC is equivalent to |