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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>
This commit is contained in:
Anshuman Khandual 2013-04-22 19:42:42 +00:00 committed by Benjamin Herrenschmidt
parent 73760931dc
commit 5afc9b52a7
1 changed files with 6 additions and 0 deletions
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6
arch/powerpc/include/asm/perf_event_server.h
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@ -33,6 +33,8 @@ struct power_pmu {
unsigned long *valp); unsigned long *valp);
int (*get_alternatives)(u64 event_id, unsigned int flags, int (*get_alternatives)(u64 event_id, unsigned int flags,
u64 alt[]); 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[]); void (*disable_pmc)(unsigned int pmc, unsigned long mmcr[]);
int (*limited_pmc_event)(u64 event_id); int (*limited_pmc_event)(u64 event_id);
u32 flags; u32 flags;
@ -42,6 +44,9 @@ struct power_pmu {
int (*cache_events)[PERF_COUNT_HW_CACHE_MAX] int (*cache_events)[PERF_COUNT_HW_CACHE_MAX]
[PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_OP_MAX]
[PERF_COUNT_HW_CACHE_RESULT_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_SIAR_VALID 0x00000010 /* Processor has SIAR Valid bit */
#define PPMU_HAS_SSLOT 0x00000020 /* Has sampled slot in MMCRA */ #define PPMU_HAS_SSLOT 0x00000020 /* Has sampled slot in MMCRA */
#define PPMU_HAS_SIER 0x00000040 /* Has SIER */ #define PPMU_HAS_SIER 0x00000040 /* Has SIER */
#define PPMU_BHRB 0x00000080 /* has BHRB feature enabled */
/* /*
* Values for flags to get_alternatives() * Values for flags to get_alternatives()