diff options
| author |   Anshuman Khandual <khandual@linux.vnet.ibm.com> | 2013-04-22 19:42:42 +0000 |
|---|---|---|
| committer |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-04-26 16:11:12 +1000 |
| commit | 5afc9b52a797790bd02680207d183ba218e73d20 (patch) | |
| tree | 243e6e9a160bf6a3c614683d724a9afe73cde6da /arch/powerpc/include/asm/perf_event_server.h | |
| parent | powerpc/perf: Add basic assembly code to read BHRB entries on POWER8 (diff) | |
| download | linux-dev-5afc9b52a797790bd02680207d183ba218e73d20.tar.xz linux-dev-5afc9b52a797790bd02680207d183ba218e73d20.zip | |
powerpc/perf: Add new BHRB related generic functions, data and flags
This patch adds couple of generic functions to power_pmu structure
which would configure the BHRB and it's filters. It also adds
representation of the number of BHRB entries present on the PMU.
A new PMU flag PPMU_BHRB would indicate presence of BHRB feature.
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/perf_event_server.h')
| -rw-r--r-- | arch/powerpc/include/asm/perf_event_server.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/perf_event_server.h b/arch/powerpc/include/asm/perf_event_server.h index 57b42da03b62..3f0c15c6f068 100644 --- a/arch/powerpc/include/asm/perf_event_server.h +++ b/arch/powerpc/include/asm/perf_event_server.h @@ -33,6 +33,8 @@ struct power_pmu { unsigned long *valp); int (*get_alternatives)(u64 event_id, unsigned int flags, u64 alt[]); + u64 (*bhrb_filter_map)(u64 branch_sample_type); + void (*config_bhrb)(u64 pmu_bhrb_filter); void (*disable_pmc)(unsigned int pmc, unsigned long mmcr[]); int (*limited_pmc_event)(u64 event_id); u32 flags; @@ -42,6 +44,9 @@ struct power_pmu { int (*cache_events)[PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX]; + + /* BHRB entries in the PMU */ + int bhrb_nr; }; /* @@ -54,6 +59,7 @@ 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 */ /* * Values for flags to get_alternatives() |