diff options
| author | Joel Stanley <joel@jms.id.au> | 2014-07-08 08:38:21 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-07-11 04:55:07 +0200 |
| commit | 4d9690dd56b0d18f2af8a9d4a279cb205aae3345 (patch) | |
| tree | ba7cea5414444ccf79b27d3c1975bdbe18f14c27 /arch | |
| parent | powerpc/kvm: Remove redundant save of SIER AND MMCR2 (diff) | |
| download | linux-4d9690dd56b0d18f2af8a9d4a279cb205aae3345.tar.xz linux-4d9690dd56b0d18f2af8a9d4a279cb205aae3345.zip | |
powerpc/perf: Add PPMU_ARCH_207S define
Instead of separate bits for every POWER8 PMU feature, have a single one
for v2.07 of the architecture.
This saves us adding a MMCR2 define for a future patch.
Cc: stable@vger.kernel.org
Signed-off-by: Joel Stanley <joel@jms.id.au>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/include/asm/perf_event_server.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/perf/core-book3s.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/perf/power8-pmu.c | 2 |
3 files changed, 5 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/perf_event_server.h b/arch/powerpc/include/asm/perf_event_server.h index 9ed737146dbb..b3e936027b26 100644 --- a/arch/powerpc/include/asm/perf_event_server.h +++ b/arch/powerpc/include/asm/perf_event_server.h @@ -61,8 +61,7 @@ struct power_pmu { #define PPMU_SIAR_VALID 0x00000010 /* Processor has SIAR Valid bit */ #define PPMU_HAS_SSLOT 0x00000020 /* Has sampled slot in MMCRA */ #define PPMU_HAS_SIER 0x00000040 /* Has SIER */ -#define PPMU_BHRB 0x00000080 /* has BHRB feature enabled */ -#define PPMU_EBB 0x00000100 /* supports event based branch */ +#define PPMU_ARCH_207S 0x00000080 /* PMC is architecture v2.07S */ /* * Values for flags to get_alternatives() diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index 4520c9356b54..a2ff1bda706a 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -485,7 +485,7 @@ static bool is_ebb_event(struct perf_event *event) * check that the PMU supports EBB, meaning those that don't can still * use bit 63 of the event code for something else if they wish. */ - return (ppmu->flags & PPMU_EBB) && + return (ppmu->flags & PPMU_ARCH_207S) && ((event->attr.config >> PERF_EVENT_CONFIG_EBB_SHIFT) & 1); } @@ -777,7 +777,7 @@ void perf_event_print_debug(void) if (ppmu->flags & PPMU_HAS_SIER) sier = mfspr(SPRN_SIER); - if (ppmu->flags & PPMU_EBB) { + if (ppmu->flags & PPMU_ARCH_207S) { pr_info("MMCR2: %016lx EBBHR: %016lx\n", mfspr(SPRN_MMCR2), mfspr(SPRN_EBBHR)); pr_info("EBBRR: %016lx BESCR: %016lx\n", @@ -1696,7 +1696,7 @@ static int power_pmu_event_init(struct perf_event *event) if (has_branch_stack(event)) { /* PMU has BHRB enabled */ - if (!(ppmu->flags & PPMU_BHRB)) + if (!(ppmu->flags & PPMU_ARCH_207S)) return -EOPNOTSUPP; } diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c index fe2763b6e039..639cd9156585 100644 --- a/arch/powerpc/perf/power8-pmu.c +++ b/arch/powerpc/perf/power8-pmu.c @@ -792,7 +792,7 @@ static struct power_pmu power8_pmu = { .get_constraint = power8_get_constraint, .get_alternatives = power8_get_alternatives, .disable_pmc = power8_disable_pmc, - .flags = PPMU_HAS_SSLOT | PPMU_HAS_SIER | PPMU_BHRB | PPMU_EBB, + .flags = PPMU_HAS_SSLOT | PPMU_HAS_SIER | PPMU_ARCH_207S, .n_generic = ARRAY_SIZE(power8_generic_events), .generic_events = power8_generic_events, .cache_events = &power8_cache_events, |