Commit f929f575 authored by Mark Rutland's avatar Mark Rutland Committed by Will Deacon
Browse files

arm: perf: xscale: condense event maps 



Now that we have macros for declaring fully invalid event maps, put them
to work for the XScale PMU event maps. While this necessitates repeating
common indices, we no longer need to refer to *_UNSUPPORTED events at
all, and it makes it possible for the even maps to fit on a single page
on a reasonably sized monitor.

Acked-by: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent cf20ae8c

arch/arm/kernel/perf_event_xscale.c

+15 −102
Original line number Diff line number Diff line
@@ -48,118 +48,31 @@ enum xscale_counters { 
};



static const unsigned xscale_perf_map[PERF_COUNT_HW_MAX] = {

	PERF_MAP_ALL_UNSUPPORTED,

	[PERF_COUNT_HW_CPU_CYCLES]		= XSCALE_PERFCTR_CCNT,

	[PERF_COUNT_HW_INSTRUCTIONS]		= XSCALE_PERFCTR_INSTRUCTION,

	[PERF_COUNT_HW_CACHE_REFERENCES]	= HW_OP_UNSUPPORTED,

	[PERF_COUNT_HW_CACHE_MISSES]		= HW_OP_UNSUPPORTED,

	[PERF_COUNT_HW_BRANCH_INSTRUCTIONS]	= XSCALE_PERFCTR_BRANCH,

	[PERF_COUNT_HW_BRANCH_MISSES]		= XSCALE_PERFCTR_BRANCH_MISS,

	[PERF_COUNT_HW_BUS_CYCLES]		= HW_OP_UNSUPPORTED,

	[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND]	= XSCALE_PERFCTR_ICACHE_NO_DELIVER,

	[PERF_COUNT_HW_STALLED_CYCLES_BACKEND]	= HW_OP_UNSUPPORTED,

};



static const unsigned xscale_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]

					   [PERF_COUNT_HW_CACHE_OP_MAX]

					   [PERF_COUNT_HW_CACHE_RESULT_MAX] = {

	[C(L1D)] = {

		[C(OP_READ)] = {

			[C(RESULT_ACCESS)]	= XSCALE_PERFCTR_DCACHE_ACCESS,

			[C(RESULT_MISS)]	= XSCALE_PERFCTR_DCACHE_MISS,

		},

		[C(OP_WRITE)] = {

			[C(RESULT_ACCESS)]	= XSCALE_PERFCTR_DCACHE_ACCESS,

			[C(RESULT_MISS)]	= XSCALE_PERFCTR_DCACHE_MISS,

		},

		[C(OP_PREFETCH)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

	},

	[C(L1I)] = {

		[C(OP_READ)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= XSCALE_PERFCTR_ICACHE_MISS,

		},

		[C(OP_WRITE)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

		[C(OP_PREFETCH)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

	},

	[C(LL)] = {

		[C(OP_READ)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

		[C(OP_WRITE)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

		[C(OP_PREFETCH)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

	},

	[C(DTLB)] = {

		[C(OP_READ)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= XSCALE_PERFCTR_DTLB_MISS,

		},

		[C(OP_WRITE)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= XSCALE_PERFCTR_DTLB_MISS,

		},

		[C(OP_PREFETCH)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

	},

	[C(ITLB)] = {

		[C(OP_READ)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= XSCALE_PERFCTR_ITLB_MISS,

		},

		[C(OP_WRITE)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= XSCALE_PERFCTR_ITLB_MISS,

		},

		[C(OP_PREFETCH)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

	},

	[C(BPU)] = {

		[C(OP_READ)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

		[C(OP_WRITE)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

		[C(OP_PREFETCH)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

	},

	[C(NODE)] = {

		[C(OP_READ)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

		[C(OP_WRITE)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

		[C(OP_PREFETCH)] = {

			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,

			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,

		},

	},

	PERF_CACHE_MAP_ALL_UNSUPPORTED,



	[C(L1D)][C(OP_READ)][C(RESULT_ACCESS)]	= XSCALE_PERFCTR_DCACHE_ACCESS,

	[C(L1D)][C(OP_READ)][C(RESULT_MISS)]	= XSCALE_PERFCTR_DCACHE_MISS,

	[C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)]	= XSCALE_PERFCTR_DCACHE_ACCESS,

	[C(L1D)][C(OP_WRITE)][C(RESULT_MISS)]	= XSCALE_PERFCTR_DCACHE_MISS,



	[C(L1I)][C(OP_READ)][C(RESULT_MISS)]	= XSCALE_PERFCTR_ICACHE_MISS,



	[C(DTLB)][C(OP_READ)][C(RESULT_MISS)]	= XSCALE_PERFCTR_DTLB_MISS,

	[C(DTLB)][C(OP_WRITE)][C(RESULT_MISS)]	= XSCALE_PERFCTR_DTLB_MISS,



	[C(ITLB)][C(OP_READ)][C(RESULT_MISS)]	= XSCALE_PERFCTR_ITLB_MISS,

	[C(ITLB)][C(OP_WRITE)][C(RESULT_MISS)]	= XSCALE_PERFCTR_ITLB_MISS,

};



#define	XSCALE_PMU_ENABLE	0x001

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