From a114aca57a59cd92189bf3795ac082a5e8fac0f1 Mon Sep 17 00:00:00 2001 From: Madhavan Srinivasan Date: Sun, 12 Feb 2017 22:33:12 +0530 Subject: [PATCH] powerpc/perf: Add alternative event table and function for power9 Signed-off-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman --- arch/powerpc/perf/power9-pmu.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c index 7332634e18c9..b38acff8a791 100644 --- a/arch/powerpc/perf/power9-pmu.c +++ b/arch/powerpc/perf/power9-pmu.c @@ -106,6 +106,21 @@ enum { /* PowerISA v2.07 format attribute structure*/ extern struct attribute_group isa207_pmu_format_group; +/* Table of alternatives, sorted by column 0 */ +static const unsigned int power9_event_alternatives[][MAX_ALT] = { + { PM_INST_DISP, PM_INST_DISP_ALT }, +}; + +static int power9_get_alternatives(u64 event, unsigned int flags, u64 alt[]) +{ + int num_alt = 0; + + num_alt = isa207_get_alternatives(event, alt, power9_event_alternatives, + (int)ARRAY_SIZE(power9_event_alternatives)); + + return num_alt; +} + GENERIC_EVENT_ATTR(cpu-cycles, PM_CYC); GENERIC_EVENT_ATTR(stalled-cycles-frontend, PM_ICT_NOSLOT_CYC); GENERIC_EVENT_ATTR(stalled-cycles-backend, PM_CMPLU_STALL); @@ -383,6 +398,7 @@ static struct power_pmu power9_isa207_pmu = { .config_bhrb = power9_config_bhrb, .bhrb_filter_map = power9_bhrb_filter_map, .get_constraint = isa207_get_constraint, + .get_alternatives = power9_get_alternatives, .disable_pmc = isa207_disable_pmc, .flags = PPMU_NO_SIAR | PPMU_ARCH_207S, .n_generic = ARRAY_SIZE(power9_generic_events), @@ -401,6 +417,7 @@ static struct power_pmu power9_pmu = { .config_bhrb = power9_config_bhrb, .bhrb_filter_map = power9_bhrb_filter_map, .get_constraint = isa207_get_constraint, + .get_alternatives = power9_get_alternatives, .disable_pmc = isa207_disable_pmc, .flags = PPMU_HAS_SIER | PPMU_ARCH_207S, .n_generic = ARRAY_SIZE(power9_generic_events), -- 2.20.1