path: root/arch/x86/kernel/cpu/perf_event_intel.c

#ifdef CONFIG_CPU_SUP_INTEL

/*
 * Intel PerfMon v3. Used on Core2 and later.
 */
static const u64 intel_perfmon_event_map[] =
{
  [PERF_COUNT_HW_CPU_CYCLES]		= 0x003c,
  [PERF_COUNT_HW_INSTRUCTIONS]		= 0x00c0,
  [PERF_COUNT_HW_CACHE_REFERENCES]	= 0x4f2e,
  [PERF_COUNT_HW_CACHE_MISSES]		= 0x412e,
  [PERF_COUNT_HW_BRANCH_INSTRUCTIONS]	= 0x00c4,
  [PERF_COUNT_HW_BRANCH_MISSES]		= 0x00c5,
  [PERF_COUNT_HW_BUS_CYCLES]		= 0x013c,
};

static struct event_constraint intel_core_event_constraints[] =
{
	INTEL_EVENT_CONSTRAINT(0x11, 0x2), /* FP_ASSIST */
	INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */
	INTEL_EVENT_CONSTRAINT(0x13, 0x2), /* DIV */
	INTEL_EVENT_CONSTRAINT(0x14, 0x1), /* CYCLES_DIV_BUSY */
	INTEL_EVENT_CONSTRAINT(0x19, 0x2), /* DELAYED_BYPASS */
	INTEL_EVENT_CONSTRAINT(0xc1, 0x1), /* FP_COMP_INSTR_RET */
	EVENT_CONSTRAINT_END
};

static struct event_constraint intel_core2_event_constraints[] =
{
	FIXED_EVENT_CONSTRAINT(0xc0, (0x3|(1ULL<<32))), /* INSTRUCTIONS_RETIRED */
	FIXED_EVENT_CONSTRAINT(0x3c, (0x3|(1ULL<<33))), /* UNHALTED_CORE_CYCLES */
	INTEL_EVENT_CONSTRAINT(0x10, 0x1), /* FP_COMP_OPS_EXE */
	INTEL_EVENT_CONSTRAINT(0x11, 0x2), /* FP_ASSIST */
	INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */
	INTEL_EVENT_CONSTRAINT(0x13, 0x2), /* DIV */
	INTEL_EVENT_CONSTRAINT(0x14, 0x1), /* CYCLES_DIV_BUSY */
	INTEL_EVENT_CONSTRAINT(0x18, 0x1), /* IDLE_DURING_DIV */
	INTEL_EVENT_CONSTRAINT(0x19, 0x2), /* DELAYED_BYPASS */
	INTEL_EVENT_CONSTRAINT(0xa1, 0x1), /* RS_UOPS_DISPATCH_CYCLES */
	INTEL_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED */
	EVENT_CONSTRAINT_END
};

static struct event_constraint intel_nehalem_event_constraints[] =
{
	FIXED_EVENT_CONSTRAINT(0xc0, (0xf|(1ULL<<32))), /* INSTRUCTIONS_RETIRED */
	FIXED_EVENT_CONSTRAINT(0x3c, (0xf|(1ULL<<33))), /* UNHALTED_CORE_CYCLES */
	INTEL_EVENT_CONSTRAINT(0x40, 0x3), /* L1D_CACHE_LD */
	INTEL_EVENT_CONSTRAINT(0x41, 0x3), /* L1D_CACHE_ST */
	INTEL_EVENT_CONSTRAINT(0x42, 0x3), /* L1D_CACHE_LOCK */
	INTEL_EVENT_CONSTRAINT(0x43, 0x3), /* L1D_ALL_REF */
	INTEL_EVENT_CONSTRAINT(0x48, 0x3), /* L1D_PEND_MISS */
	INTEL_EVENT_CONSTRAINT(0x4e, 0x3), /* L1D_PREFETCH */
	INTEL_EVENT_CONSTRAINT(0x51, 0x3), /* L1D */
	INTEL_EVENT_CONSTRAINT(0x63, 0x3), /* CACHE_LOCK_CYCLES */
	EVENT_CONSTRAINT_END
};

static struct event_constraint intel_westmere_event_constraints[] =
{
	FIXED_EVENT_CONSTRAINT(0xc0, (0xf|(1ULL<<32))), /* INSTRUCTIONS_RETIRED */
	FIXED_EVENT_CONSTRAINT(0x3c, (0xf|(1ULL<<33))), /* UNHALTED_CORE_CYCLES */
	INTEL_EVENT_CONSTRAINT(0x51, 0x3), /* L1D */
	INTEL_EVENT_CONSTRAINT(0x60, 0x1), /* OFFCORE_REQUESTS_OUTSTANDING */
	INTEL_EVENT_CONSTRAINT(0x63, 0x3), /* CACHE_LOCK_CYCLES */
	EVENT_CONSTRAINT_END
};

static struct event_constraint intel_gen_event_constraints[] =
{
	FIXED_EVENT_CONSTRAINT(0xc0, (0x3|(1ULL<<32))), /* INSTRUCTIONS_RETIRED */
	FIXED_EVENT_CONSTRAINT(0x3c, (0x3|(1ULL<<33))), /* UNHALTED_CORE_CYCLES */
	EVENT_CONSTRAINT_END
};

static u64 intel_pmu_event_map(int hw_event)
{
	return intel_perfmon_event_map[hw_event];
}

static __initconst u64 westmere_hw_cache_event_ids
				[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) ] = 0x010b, /* MEM_INST_RETIRED.LOADS       */
		[ C(RESULT_MISS)   ] = 0x0151, /* L1D.REPL                     */
	},
	[ C(OP_WRITE) ] = {
		[ C(RESULT_ACCESS) ] = 0x020b, /* MEM_INST_RETURED.STORES      */
		[ C(RESULT_MISS)   ] = 0x0251, /* L1D.M_REPL                   */
	},
	[ C(OP_PREFETCH) ] = {
		[ C(RESULT_ACCESS) ] = 0x014e, /* L1D_PREFETCH.REQUESTS        */
		[ C(RESULT_MISS)   ] = 0x024e, /* L1D_PREFETCH.MISS            */
	},
 },
 [ C(L1I ) ] = {
	[ C(OP_READ) ] = {
		[ C(RESULT_ACCESS) ] = 0x0380, /* L1I.READS                    */
		[ C(RESULT_MISS)   ] = 0x0280, /* L1I.MISSES                   */
	},
	[ C(OP_WRITE) ] = {
		[ C(RESULT_ACCESS) ] = -1,
		[ C(RESULT_MISS)   ] = -1,
	},
	[ C(OP_PREFETCH) ] = {
		[ C