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Commit 5afc9b52 authored by Anshuman Khandual's avatar Anshuman Khandual Committed by Benjamin Herrenschmidt
Browse files

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: default avatarAnshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 73760931

arch/powerpc/include/asm/perf_event_server.h

+6 −0
Original line number Diff line number Diff line
@@ -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()