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| author | Paul Mackerras <paulus@samba.org> | 2009-06-11 14:55:42 +1000 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-11 16:48:37 +0200 |
| commit | 106b506c3a8b74daa5751e83ed3e46438fcf9a52 (patch) | |
| tree | ad141aa86b020501823c7e2c7ac0abb9f27cf5a1 /arch/powerpc/kernel/power4-pmu.c | |
| parent | 4da52960fd1ae3ddd14901bc88b608cbeaa4b9a6 (diff) | |
| download | lwn-106b506c3a8b74daa5751e83ed3e46438fcf9a52.tar.gz lwn-106b506c3a8b74daa5751e83ed3e46438fcf9a52.zip | |
perf_counter: powerpc: Implement generalized cache events for POWER processors
This adds tables of event codes for the generalized cache events for
all the currently supported powerpc processors: POWER{4,5,5+,6,7} and
PPC970*, plus powerpc-specific code to use these tables when a
generalized cache event is requested.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <18992.36430.933526.742969@drongo.ozlabs.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/powerpc/kernel/power4-pmu.c')
| -rw-r--r-- | arch/powerpc/kernel/power4-pmu.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/power4-pmu.c b/arch/powerpc/kernel/power4-pmu.c index 836fa118eb1e..0e94b6857220 100644 --- a/arch/powerpc/kernel/power4-pmu.c +++ b/arch/powerpc/kernel/power4-pmu.c @@ -543,6 +543,46 @@ static int p4_generic_events[] = { [PERF_COUNT_BRANCH_MISSES] = 0x331, /* PM_BR_MPRED_CR */ }; +#define C(x) PERF_COUNT_HW_CACHE_##x + +/* + * Table of generalized cache-related events. + * 0 means not supported, -1 means nonsensical, other values + * are event codes. + */ +static int power4_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { + [C(L1D)] = { /* RESULT_ACCESS RESULT_MISS */ + [C(OP_READ)] = { 0x8c10, 0x3c10 }, + [C(OP_WRITE)] = { 0x7c10, 0xc13 }, + [C(OP_PREFETCH)] = { 0xc35, 0 }, + }, + [C(L1I)] = { /* RESULT_ACCESS RESULT_MISS */ + [C(OP_READ)] = { 0, 0 }, + [C(OP_WRITE)] = { -1, -1 }, + [C(OP_PREFETCH)] = { 0, 0 }, + }, + [C(L2)] = { /* RESULT_ACCESS RESULT_MISS */ + [C(OP_READ)] = { 0, 0 }, + [C(OP_WRITE)] = { 0, 0 }, + [C(OP_PREFETCH)] = { 0xc34, 0 }, + }, + [C(DTLB)] = { /* RESULT_ACCESS RESULT_MISS */ + [C(OP_READ)] = { 0, 0x904 }, + [C(OP_WRITE)] = { -1, -1 }, + [C(OP_PREFETCH)] = { -1, -1 }, + }, + [C(ITLB)] = { /* RESULT_ACCESS RESULT_MISS */ + [C(OP_READ)] = { 0, 0x900 }, + [C(OP_WRITE)] = { -1, -1 }, + [C(OP_PREFETCH)] = { -1, -1 }, + }, + [C(BPU)] = { /* RESULT_ACCESS RESULT_MISS */ + [C(OP_READ)] = { 0x330, 0x331 }, + [C(OP_WRITE)] = { -1, -1 }, + [C(OP_PREFETCH)] = { -1, -1 }, + }, +}; + struct power_pmu power4_pmu = { .n_counter = 8, .max_alternatives = 5, @@ -554,4 +594,5 @@ struct power_pmu power4_pmu = { .disable_pmc = p4_disable_pmc, .n_generic = ARRAY_SIZE(p4_generic_events), .generic_events = p4_generic_events, + .cache_events = &power4_cache_events, }; |