diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/x86/kernel/cpu/perf_event_intel.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/x86/kernel/cpu/perf_event_intel.c | 1886 |
1 files changed, 0 insertions, 1886 deletions
diff --git a/ANDROID_3.4.5/arch/x86/kernel/cpu/perf_event_intel.c b/ANDROID_3.4.5/arch/x86/kernel/cpu/perf_event_intel.c deleted file mode 100644 index 26b3e2fe..00000000 --- a/ANDROID_3.4.5/arch/x86/kernel/cpu/perf_event_intel.c +++ /dev/null @@ -1,1886 +0,0 @@ -/* - * Per core/cpu state - * - * Used to coordinate shared registers between HT threads or - * among events on a single PMU. - */ - -#include <linux/stddef.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/export.h> - -#include <asm/hardirq.h> -#include <asm/apic.h> - -#include "perf_event.h" - -/* - * Intel PerfMon, used on Core and later. - */ -static u64 intel_perfmon_event_map[PERF_COUNT_HW_MAX] __read_mostly = -{ - [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, - [PERF_COUNT_HW_REF_CPU_CYCLES] = 0x0300, /* pseudo-encoding */ -}; - -static struct event_constraint intel_core_event_constraints[] __read_mostly = -{ - 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[] __read_mostly = -{ - FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ - FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ - FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ - 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(0xc9, 0x1), /* ITLB_MISS_RETIRED (T30-9) */ - INTEL_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED */ - EVENT_CONSTRAINT_END -}; - -static struct event_constraint intel_nehalem_event_constraints[] __read_mostly = -{ - FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ - FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ - FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ - 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 extra_reg intel_nehalem_extra_regs[] __read_mostly = -{ - INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0xffff, RSP_0), - EVENT_EXTRA_END -}; - -static struct event_constraint intel_westmere_event_constraints[] __read_mostly = -{ - FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ - FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ - FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ - INTEL_EVENT_CONSTRAINT(0x51, 0x3), /* L1D */ - INTEL_EVENT_CONSTRAINT(0x60, 0x1), /* OFFCORE_REQUESTS_OUTSTANDING */ - INTEL_EVENT_CONSTRAINT(0x63, 0x3), /* CACHE_LOCK_CYCLES */ - INTEL_EVENT_CONSTRAINT(0xb3, 0x1), /* SNOOPQ_REQUEST_OUTSTANDING */ - EVENT_CONSTRAINT_END -}; - -static struct event_constraint intel_snb_event_constraints[] __read_mostly = -{ - FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ - FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ - FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ - INTEL_EVENT_CONSTRAINT(0x48, 0x4), /* L1D_PEND_MISS.PENDING */ - INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PREC_DIST */ - INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.LOAD_LATENCY */ - EVENT_CONSTRAINT_END -}; - -static struct extra_reg intel_westmere_extra_regs[] __read_mostly = -{ - INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0xffff, RSP_0), - INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0xffff, RSP_1), - EVENT_EXTRA_END -}; - -static struct event_constraint intel_v1_event_constraints[] __read_mostly = -{ - EVENT_CONSTRAINT_END -}; - -static struct event_constraint intel_gen_event_constraints[] __read_mostly = -{ - FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ - FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ - FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ - EVENT_CONSTRAINT_END -}; - -static struct extra_reg intel_snb_extra_regs[] __read_mostly = { - INTEL_EVENT_EXTRA_REG(0xb7, MSR_OFFCORE_RSP_0, 0x3fffffffffull, RSP_0), - INTEL_EVENT_EXTRA_REG(0xbb, MSR_OFFCORE_RSP_1, 0x3fffffffffull, RSP_1), - EVENT_EXTRA_END -}; - -static u64 intel_pmu_event_map(int hw_event) -{ - return intel_perfmon_event_map[hw_event]; -} - -static __initconst const u64 snb_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) ] = 0xf1d0, /* MEM_UOP_RETIRED.LOADS */ - [ C(RESULT_MISS) ] = 0x0151, /* L1D.REPLACEMENT */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0xf2d0, /* MEM_UOP_RETIRED.STORES */ - [ C(RESULT_MISS) ] = 0x0851, /* L1D.ALL_M_REPLACEMENT */ - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0x0, - [ C(RESULT_MISS) ] = 0x024e, /* HW_PRE_REQ.DL1_MISS */ - }, - }, - [ C(L1I ) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x0, - [ C(RESULT_MISS) ] = 0x0280, /* ICACHE.MISSES */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0x0, - [ C(RESULT_MISS) ] = 0x0, - }, - }, - [ C(LL ) ] = { - [ C(OP_READ) ] = { - /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */ - [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE.ANY_DATA.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01b7, - }, - [ C(OP_WRITE) ] = { - /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */ - [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01b7, - }, - [ C(OP_PREFETCH) ] = { - /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */ - [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01b7, - }, - }, - [ C(DTLB) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_UOP_RETIRED.ALL_LOADS */ - [ C(RESULT_MISS) ] = 0x0108, /* DTLB_LOAD_MISSES.CAUSES_A_WALK */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x82d0, /* MEM_UOP_RETIRED.ALL_STORES */ - [ C(RESULT_MISS) ] = 0x0149, /* DTLB_STORE_MISSES.MISS_CAUSES_A_WALK */ - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0x0, - [ C(RESULT_MISS) ] = 0x0, - }, - }, - [ C(ITLB) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x1085, /* ITLB_MISSES.STLB_HIT */ - [ C(RESULT_MISS) ] = 0x0185, /* ITLB_MISSES.CAUSES_A_WALK */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - }, - [ C(BPU ) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */ - [ C(RESULT_MISS) ] = 0x00c5, /* BR_MISP_RETIRED.ALL_BRANCHES */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - }, - [ C(NODE) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - }, - -}; - -static __initconst const 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(RESULT_ACCESS) ] = 0x0, - [ C(RESULT_MISS) ] = 0x0, - }, - }, - [ C(LL ) ] = { - [ C(OP_READ) ] = { - /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */ - [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE.ANY_DATA.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01b7, - }, - /* - * Use RFO, not WRITEBACK, because a write miss would typically occur - * on RFO. - */ - [ C(OP_WRITE) ] = { - /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */ - [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01b7, - }, - [ C(OP_PREFETCH) ] = { - /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */ - [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01b7, - }, - }, - [ C(DTLB) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x010b, /* MEM_INST_RETIRED.LOADS */ - [ C(RESULT_MISS) ] = 0x0108, /* DTLB_LOAD_MISSES.ANY */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x020b, /* MEM_INST_RETURED.STORES */ - [ C(RESULT_MISS) ] = 0x010c, /* MEM_STORE_RETIRED.DTLB_MISS */ - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0x0, - [ C(RESULT_MISS) ] = 0x0, - }, - }, - [ C(ITLB) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x01c0, /* INST_RETIRED.ANY_P */ - [ C(RESULT_MISS) ] = 0x0185, /* ITLB_MISSES.ANY */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - }, - [ C(BPU ) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */ - [ C(RESULT_MISS) ] = 0x03e8, /* BPU_CLEARS.ANY */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - }, - [ C(NODE) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x01b7, - [ C(RESULT_MISS) ] = 0x01b7, - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x01b7, - [ C(RESULT_MISS) ] = 0x01b7, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0x01b7, - [ C(RESULT_MISS) ] = 0x01b7, - }, - }, -}; - -/* - * Nehalem/Westmere MSR_OFFCORE_RESPONSE bits; - * See IA32 SDM Vol 3B 30.6.1.3 - */ - -#define NHM_DMND_DATA_RD (1 << 0) -#define NHM_DMND_RFO (1 << 1) -#define NHM_DMND_IFETCH (1 << 2) -#define NHM_DMND_WB (1 << 3) -#define NHM_PF_DATA_RD (1 << 4) -#define NHM_PF_DATA_RFO (1 << 5) -#define NHM_PF_IFETCH (1 << 6) -#define NHM_OFFCORE_OTHER (1 << 7) -#define NHM_UNCORE_HIT (1 << 8) -#define NHM_OTHER_CORE_HIT_SNP (1 << 9) -#define NHM_OTHER_CORE_HITM (1 << 10) - /* reserved */ -#define NHM_REMOTE_CACHE_FWD (1 << 12) -#define NHM_REMOTE_DRAM (1 << 13) -#define NHM_LOCAL_DRAM (1 << 14) -#define NHM_NON_DRAM (1 << 15) - -#define NHM_LOCAL (NHM_LOCAL_DRAM|NHM_REMOTE_CACHE_FWD) -#define NHM_REMOTE (NHM_REMOTE_DRAM) - -#define NHM_DMND_READ (NHM_DMND_DATA_RD) -#define NHM_DMND_WRITE (NHM_DMND_RFO|NHM_DMND_WB) -#define NHM_DMND_PREFETCH (NHM_PF_DATA_RD|NHM_PF_DATA_RFO) - -#define NHM_L3_HIT (NHM_UNCORE_HIT|NHM_OTHER_CORE_HIT_SNP|NHM_OTHER_CORE_HITM) -#define NHM_L3_MISS (NHM_NON_DRAM|NHM_LOCAL_DRAM|NHM_REMOTE_DRAM|NHM_REMOTE_CACHE_FWD) -#define NHM_L3_ACCESS (NHM_L3_HIT|NHM_L3_MISS) - -static __initconst const u64 nehalem_hw_cache_extra_regs - [PERF_COUNT_HW_CACHE_MAX] - [PERF_COUNT_HW_CACHE_OP_MAX] - [PERF_COUNT_HW_CACHE_RESULT_MAX] = -{ - [ C(LL ) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = NHM_DMND_READ|NHM_L3_ACCESS, - [ C(RESULT_MISS) ] = NHM_DMND_READ|NHM_L3_MISS, - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = NHM_DMND_WRITE|NHM_L3_ACCESS, - [ C(RESULT_MISS) ] = NHM_DMND_WRITE|NHM_L3_MISS, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = NHM_DMND_PREFETCH|NHM_L3_ACCESS, - [ C(RESULT_MISS) ] = NHM_DMND_PREFETCH|NHM_L3_MISS, - }, - }, - [ C(NODE) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = NHM_DMND_READ|NHM_LOCAL|NHM_REMOTE, - [ C(RESULT_MISS) ] = NHM_DMND_READ|NHM_REMOTE, - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = NHM_DMND_WRITE|NHM_LOCAL|NHM_REMOTE, - [ C(RESULT_MISS) ] = NHM_DMND_WRITE|NHM_REMOTE, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = NHM_DMND_PREFETCH|NHM_LOCAL|NHM_REMOTE, - [ C(RESULT_MISS) ] = NHM_DMND_PREFETCH|NHM_REMOTE, - }, - }, -}; - -static __initconst const u64 nehalem_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(RESULT_ACCESS) ] = 0x0, - [ C(RESULT_MISS) ] = 0x0, - }, - }, - [ C(LL ) ] = { - [ C(OP_READ) ] = { - /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */ - [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE.ANY_DATA.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01b7, - }, - /* - * Use RFO, not WRITEBACK, because a write miss would typically occur - * on RFO. - */ - [ C(OP_WRITE) ] = { - /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */ - [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01b7, - }, - [ C(OP_PREFETCH) ] = { - /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */ - [ C(RESULT_ACCESS) ] = 0x01b7, - /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */ - [ C(RESULT_MISS) ] = 0x01b7, - }, - }, - [ C(DTLB) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x0f40, /* L1D_CACHE_LD.MESI (alias) */ - [ C(RESULT_MISS) ] = 0x0108, /* DTLB_LOAD_MISSES.ANY */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x0f41, /* L1D_CACHE_ST.MESI (alias) */ - [ C(RESULT_MISS) ] = 0x010c, /* MEM_STORE_RETIRED.DTLB_MISS */ - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0x0, - [ C(RESULT_MISS) ] = 0x0, - }, - }, - [ C(ITLB) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x01c0, /* INST_RETIRED.ANY_P */ - [ C(RESULT_MISS) ] = 0x20c8, /* ITLB_MISS_RETIRED */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - }, - [ C(BPU ) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */ - [ C(RESULT_MISS) ] = 0x03e8, /* BPU_CLEARS.ANY */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - }, - [ C(NODE) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x01b7, - [ C(RESULT_MISS) ] = 0x01b7, - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x01b7, - [ C(RESULT_MISS) ] = 0x01b7, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0x01b7, - [ C(RESULT_MISS) ] = 0x01b7, - }, - }, -}; - -static __initconst const u64 core2_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) ] = 0x0f40, /* L1D_CACHE_LD.MESI */ - [ C(RESULT_MISS) ] = 0x0140, /* L1D_CACHE_LD.I_STATE */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x0f41, /* L1D_CACHE_ST.MESI */ - [ C(RESULT_MISS) ] = 0x0141, /* L1D_CACHE_ST.I_STATE */ - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0x104e, /* L1D_PREFETCH.REQUESTS */ - [ C(RESULT_MISS) ] = 0, - }, - }, - [ C(L1I ) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x0080, /* L1I.READS */ - [ C(RESULT_MISS) ] = 0x0081, /* L1I.MISSES */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0, - [ C(RESULT_MISS) ] = 0, - }, - }, - [ C(LL ) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x4f29, /* L2_LD.MESI */ - [ C(RESULT_MISS) ] = 0x4129, /* L2_LD.ISTATE */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x4f2A, /* L2_ST.MESI */ - [ C(RESULT_MISS) ] = 0x412A, /* L2_ST.ISTATE */ - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0, - [ C(RESULT_MISS) ] = 0, - }, - }, - [ C(DTLB) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x0f40, /* L1D_CACHE_LD.MESI (alias) */ - [ C(RESULT_MISS) ] = 0x0208, /* DTLB_MISSES.MISS_LD */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x0f41, /* L1D_CACHE_ST.MESI (alias) */ - [ C(RESULT_MISS) ] = 0x0808, /* DTLB_MISSES.MISS_ST */ - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0, - [ C(RESULT_MISS) ] = 0, - }, - }, - [ C(ITLB) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x00c0, /* INST_RETIRED.ANY_P */ - [ C(RESULT_MISS) ] = 0x1282, /* ITLBMISSES */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - }, - [ C(BPU ) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ANY */ - [ C(RESULT_MISS) ] = 0x00c5, /* BP_INST_RETIRED.MISPRED */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - }, -}; - -static __initconst const u64 atom_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) ] = 0x2140, /* L1D_CACHE.LD */ - [ C(RESULT_MISS) ] = 0, - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x2240, /* L1D_CACHE.ST */ - [ C(RESULT_MISS) ] = 0, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0x0, - [ C(RESULT_MISS) ] = 0, - }, - }, - [ 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(RESULT_ACCESS) ] = 0, - [ C(RESULT_MISS) ] = 0, - }, - }, - [ C(LL ) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x4f29, /* L2_LD.MESI */ - [ C(RESULT_MISS) ] = 0x4129, /* L2_LD.ISTATE */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x4f2A, /* L2_ST.MESI */ - [ C(RESULT_MISS) ] = 0x412A, /* L2_ST.ISTATE */ - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0, - [ C(RESULT_MISS) ] = 0, - }, - }, - [ C(DTLB) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x2140, /* L1D_CACHE_LD.MESI (alias) */ - [ C(RESULT_MISS) ] = 0x0508, /* DTLB_MISSES.MISS_LD */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = 0x2240, /* L1D_CACHE_ST.MESI (alias) */ - [ C(RESULT_MISS) ] = 0x0608, /* DTLB_MISSES.MISS_ST */ - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = 0, - [ C(RESULT_MISS) ] = 0, - }, - }, - [ C(ITLB) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x00c0, /* INST_RETIRED.ANY_P */ - [ C(RESULT_MISS) ] = 0x0282, /* ITLB.MISSES */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - }, - [ C(BPU ) ] = { - [ C(OP_READ) ] = { - [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ANY */ - [ C(RESULT_MISS) ] = 0x00c5, /* BP_INST_RETIRED.MISPRED */ - }, - [ C(OP_WRITE) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - [ C(OP_PREFETCH) ] = { - [ C(RESULT_ACCESS) ] = -1, - [ C(RESULT_MISS) ] = -1, - }, - }, -}; - -static inline bool intel_pmu_needs_lbr_smpl(struct perf_event *event) -{ - /* user explicitly requested branch sampling */ - if (has_branch_stack(event)) - return true; - - /* implicit branch sampling to correct PEBS skid */ - if (x86_pmu.intel_cap.pebs_trap && event->attr.precise_ip > 1) - return true; - - return false; -} - -static void intel_pmu_disable_all(void) -{ - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); - - wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0); - - if (test_bit(X86_PMC_IDX_FIXED_BTS, cpuc->active_mask)) - intel_pmu_disable_bts(); - - intel_pmu_pebs_disable_all(); - intel_pmu_lbr_disable_all(); -} - -static void intel_pmu_enable_all(int added) -{ - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); - - intel_pmu_pebs_enable_all(); - intel_pmu_lbr_enable_all(); - wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, - x86_pmu.intel_ctrl & ~cpuc->intel_ctrl_guest_mask); - - if (test_bit(X86_PMC_IDX_FIXED_BTS, cpuc->active_mask)) { - struct perf_event *event = - cpuc->events[X86_PMC_IDX_FIXED_BTS]; - - if (WARN_ON_ONCE(!event)) - return; - - intel_pmu_enable_bts(event->hw.config); - } -} - -/* - * Workaround for: - * Intel Errata AAK100 (model 26) - * Intel Errata AAP53 (model 30) - * Intel Errata BD53 (model 44) - * - * The official story: - * These chips need to be 'reset' when adding counters by programming the - * magic three (non-counting) events 0x4300B5, 0x4300D2, and 0x4300B1 either - * in sequence on the same PMC or on different PMCs. - * - * In practise it appears some of these events do in fact count, and - * we need to programm all 4 events. - */ -static void intel_pmu_nhm_workaround(void) -{ - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); - static const unsigned long nhm_magic[4] = { - 0x4300B5, - 0x4300D2, - 0x4300B1, - 0x4300B1 - }; - struct perf_event *event; - int i; - - /* - * The Errata requires below steps: - * 1) Clear MSR_IA32_PEBS_ENABLE and MSR_CORE_PERF_GLOBAL_CTRL; - * 2) Configure 4 PERFEVTSELx with the magic events and clear - * the corresponding PMCx; - * 3) set bit0~bit3 of MSR_CORE_PERF_GLOBAL_CTRL; - * 4) Clear MSR_CORE_PERF_GLOBAL_CTRL; - * 5) Clear 4 pairs of ERFEVTSELx and PMCx; - */ - - /* - * The real steps we choose are a little different from above. - * A) To reduce MSR operations, we don't run step 1) as they - * are already cleared before this function is called; - * B) Call x86_perf_event_update to save PMCx before configuring - * PERFEVTSELx with magic number; - * C) With step 5), we do clear only when the PERFEVTSELx is - * not used currently. - * D) Call x86_perf_event_set_period to restore PMCx; - */ - - /* We always operate 4 pairs of PERF Counters */ - for (i = 0; i < 4; i++) { - event = cpuc->events[i]; - if (event) - x86_perf_event_update(event); - } - - for (i = 0; i < 4; i++) { - wrmsrl(MSR_ARCH_PERFMON_EVENTSEL0 + i, nhm_magic[i]); - wrmsrl(MSR_ARCH_PERFMON_PERFCTR0 + i, 0x0); - } - - wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0xf); - wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0x0); - - for (i = 0; i < 4; i++) { - event = cpuc->events[i]; - - if (event) { - x86_perf_event_set_period(event); - __x86_pmu_enable_event(&event->hw, - ARCH_PERFMON_EVENTSEL_ENABLE); - } else - wrmsrl(MSR_ARCH_PERFMON_EVENTSEL0 + i, 0x0); - } -} - -static void intel_pmu_nhm_enable_all(int added) -{ - if (added) - intel_pmu_nhm_workaround(); - intel_pmu_enable_all(added); -} - -static inline u64 intel_pmu_get_status(void) -{ - u64 status; - - rdmsrl(MSR_CORE_PERF_GLOBAL_STATUS, status); - - return status; -} - -static inline void intel_pmu_ack_status(u64 ack) -{ - wrmsrl(MSR_CORE_PERF_GLOBAL_OVF_CTRL, ack); -} - -static void intel_pmu_disable_fixed(struct hw_perf_event *hwc) -{ - int idx = hwc->idx - X86_PMC_IDX_FIXED; - u64 ctrl_val, mask; - - mask = 0xfULL << (idx * 4); - - rdmsrl(hwc->config_base, ctrl_val); - ctrl_val &= ~mask; - wrmsrl(hwc->config_base, ctrl_val); -} - -static void intel_pmu_disable_event(struct perf_event *event) -{ - struct hw_perf_event *hwc = &event->hw; - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); - - if (unlikely(hwc->idx == X86_PMC_IDX_FIXED_BTS)) { - intel_pmu_disable_bts(); - intel_pmu_drain_bts_buffer(); - return; - } - - cpuc->intel_ctrl_guest_mask &= ~(1ull << hwc->idx); - cpuc->intel_ctrl_host_mask &= ~(1ull << hwc->idx); - - /* - * must disable before any actual event - * because any event may be combined with LBR - */ - if (intel_pmu_needs_lbr_smpl(event)) - intel_pmu_lbr_disable(event); - - if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) { - intel_pmu_disable_fixed(hwc); - return; - } - - x86_pmu_disable_event(event); - - if (unlikely(event->attr.precise_ip)) - intel_pmu_pebs_disable(event); -} - -static void intel_pmu_enable_fixed(struct hw_perf_event *hwc) -{ - int idx = hwc->idx - X86_PMC_IDX_FIXED; - u64 ctrl_val, bits, mask; - - /* - * Enable IRQ generation (0x8), - * and enable ring-3 counting (0x2) and ring-0 counting (0x1) - * if requested: - */ - bits = 0x8ULL; - if (hwc->config & ARCH_PERFMON_EVENTSEL_USR) - bits |= 0x2; - if (hwc->config & ARCH_PERFMON_EVENTSEL_OS) - bits |= 0x1; - - /* - * ANY bit is supported in v3 and up - */ - if (x86_pmu.version > 2 && hwc->config & ARCH_PERFMON_EVENTSEL_ANY) - bits |= 0x4; - - bits <<= (idx * 4); - mask = 0xfULL << (idx * 4); - - rdmsrl(hwc->config_base, ctrl_val); - ctrl_val &= ~mask; - ctrl_val |= bits; - wrmsrl(hwc->config_base, ctrl_val); -} - -static void intel_pmu_enable_event(struct perf_event *event) -{ - struct hw_perf_event *hwc = &event->hw; - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); - - if (unlikely(hwc->idx == X86_PMC_IDX_FIXED_BTS)) { - if (!__this_cpu_read(cpu_hw_events.enabled)) - return; - - intel_pmu_enable_bts(hwc->config); - return; - } - /* - * must enabled before any actual event - * because any event may be combined with LBR - */ - if (intel_pmu_needs_lbr_smpl(event)) - intel_pmu_lbr_enable(event); - - if (event->attr.exclude_host) - cpuc->intel_ctrl_guest_mask |= (1ull << hwc->idx); - if (event->attr.exclude_guest) - cpuc->intel_ctrl_host_mask |= (1ull << hwc->idx); - - if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) { - intel_pmu_enable_fixed(hwc); - return; - } - - if (unlikely(event->attr.precise_ip)) - intel_pmu_pebs_enable(event); - - __x86_pmu_enable_event(hwc, ARCH_PERFMON_EVENTSEL_ENABLE); -} - -/* - * Save and restart an expired event. Called by NMI contexts, - * so it has to be careful about preempting normal event ops: - */ -int intel_pmu_save_and_restart(struct perf_event *event) -{ - x86_perf_event_update(event); - return x86_perf_event_set_period(event); -} - -static void intel_pmu_reset(void) -{ - struct debug_store *ds = __this_cpu_read(cpu_hw_events.ds); - unsigned long flags; - int idx; - - if (!x86_pmu.num_counters) - return; - - local_irq_save(flags); - - printk("clearing PMU state on CPU#%d\n", smp_processor_id()); - - for (idx = 0; idx < x86_pmu.num_counters; idx++) { - checking_wrmsrl(x86_pmu_config_addr(idx), 0ull); - checking_wrmsrl(x86_pmu_event_addr(idx), 0ull); - } - for (idx = 0; idx < x86_pmu.num_counters_fixed; idx++) - checking_wrmsrl(MSR_ARCH_PERFMON_FIXED_CTR0 + idx, 0ull); - - if (ds) - ds->bts_index = ds->bts_buffer_base; - - local_irq_restore(flags); -} - -/* - * This handler is triggered by the local APIC, so the APIC IRQ handling - * rules apply: - */ -static int intel_pmu_handle_irq(struct pt_regs *regs) -{ - struct perf_sample_data data; - struct cpu_hw_events *cpuc; - int bit, loops; - u64 status; - int handled; - - perf_sample_data_init(&data, 0); - - cpuc = &__get_cpu_var(cpu_hw_events); - - /* - * Some chipsets need to unmask the LVTPC in a particular spot - * inside the nmi handler. As a result, the unmasking was pushed - * into all the nmi handlers. - * - * This handler doesn't seem to have any issues with the unmasking - * so it was left at the top. - */ - apic_write(APIC_LVTPC, APIC_DM_NMI); - - intel_pmu_disable_all(); - handled = intel_pmu_drain_bts_buffer(); - status = intel_pmu_get_status(); - if (!status) { - intel_pmu_enable_all(0); - return handled; - } - - loops = 0; -again: - intel_pmu_ack_status(status); - if (++loops > 100) { - WARN_ONCE(1, "perfevents: irq loop stuck!\n"); - perf_event_print_debug(); - intel_pmu_reset(); - goto done; - } - - inc_irq_stat(apic_perf_irqs); - - intel_pmu_lbr_read(); - - /* - * PEBS overflow sets bit 62 in the global status register - */ - if (__test_and_clear_bit(62, (unsigned long *)&status)) { - handled++; - x86_pmu.drain_pebs(regs); - } - - for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) { - struct perf_event *event = cpuc->events[bit]; - - handled++; - - if (!test_bit(bit, cpuc->active_mask)) - continue; - - if (!intel_pmu_save_and_restart(event)) - continue; - - data.period = event->hw.last_period; - - if (has_branch_stack(event)) - data.br_stack = &cpuc->lbr_stack; - - if (perf_event_overflow(event, &data, regs)) - x86_pmu_stop(event, 0); - } - - /* - * Repeat if there is more work to be done: - */ - status = intel_pmu_get_status(); - if (status) - goto again; - -done: - intel_pmu_enable_all(0); - return handled; -} - -static struct event_constraint * -intel_bts_constraints(struct perf_event *event) -{ - struct hw_perf_event *hwc = &event->hw; - unsigned int hw_event, bts_event; - - if (event->attr.freq) - return NULL; - - hw_event = hwc->config & INTEL_ARCH_EVENT_MASK; - bts_event = x86_pmu.event_map(PERF_COUNT_HW_BRANCH_INSTRUCTIONS); - - if (unlikely(hw_event == bts_event && hwc->sample_period == 1)) - return &bts_constraint; - - return NULL; -} - -static bool intel_try_alt_er(struct perf_event *event, int orig_idx) -{ - if (!(x86_pmu.er_flags & ERF_HAS_RSP_1)) - return false; - - if (event->hw.extra_reg.idx == EXTRA_REG_RSP_0) { - event->hw.config &= ~INTEL_ARCH_EVENT_MASK; - event->hw.config |= 0x01bb; - event->hw.extra_reg.idx = EXTRA_REG_RSP_1; - event->hw.extra_reg.reg = MSR_OFFCORE_RSP_1; - } else if (event->hw.extra_reg.idx == EXTRA_REG_RSP_1) { - event->hw.config &= ~INTEL_ARCH_EVENT_MASK; - event->hw.config |= 0x01b7; - event->hw.extra_reg.idx = EXTRA_REG_RSP_0; - event->hw.extra_reg.reg = MSR_OFFCORE_RSP_0; - } - - if (event->hw.extra_reg.idx == orig_idx) - return false; - - return true; -} - -/* - * manage allocation of shared extra msr for certain events - * - * sharing can be: - * per-cpu: to be shared between the various events on a single PMU - * per-core: per-cpu + shared by HT threads - */ -static struct event_constraint * -__intel_shared_reg_get_constraints(struct cpu_hw_events *cpuc, - struct perf_event *event, - struct hw_perf_event_extra *reg) -{ - struct event_constraint *c = &emptyconstraint; - struct er_account *era; - unsigned long flags; - int orig_idx = reg->idx; - - /* already allocated shared msr */ - if (reg->alloc) - return NULL; /* call x86_get_event_constraint() */ - -again: - era = &cpuc->shared_regs->regs[reg->idx]; - /* - * we use spin_lock_irqsave() to avoid lockdep issues when - * passing a fake cpuc - */ - raw_spin_lock_irqsave(&era->lock, flags); - - if (!atomic_read(&era->ref) || era->config == reg->config) { - - /* lock in msr value */ - era->config = reg->config; - era->reg = reg->reg; - - /* one more user */ - atomic_inc(&era->ref); - - /* no need to reallocate during incremental event scheduling */ - reg->alloc = 1; - - /* - * need to call x86_get_event_constraint() - * to check if associated event has constraints - */ - c = NULL; - } else if (intel_try_alt_er(event, orig_idx)) { - raw_spin_unlock_irqrestore(&era->lock, flags); - goto again; - } - raw_spin_unlock_irqrestore(&era->lock, flags); - - return c; -} - -static void -__intel_shared_reg_put_constraints(struct cpu_hw_events *cpuc, - struct hw_perf_event_extra *reg) -{ - struct er_account *era; - - /* - * only put constraint if extra reg was actually - * allocated. Also takes care of event which do - * not use an extra shared reg - */ - if (!reg->alloc) - return; - - era = &cpuc->shared_regs->regs[reg->idx]; - - /* one fewer user */ - atomic_dec(&era->ref); - - /* allocate again next time */ - reg->alloc = 0; -} - -static struct event_constraint * -intel_shared_regs_constraints(struct cpu_hw_events *cpuc, - struct perf_event *event) -{ - struct event_constraint *c = NULL, *d; - struct hw_perf_event_extra *xreg, *breg; - - xreg = &event->hw.extra_reg; - if (xreg->idx != EXTRA_REG_NONE) { - c = __intel_shared_reg_get_constraints(cpuc, event, xreg); - if (c == &emptyconstraint) - return c; - } - breg = &event->hw.branch_reg; - if (breg->idx != EXTRA_REG_NONE) { - d = __intel_shared_reg_get_constraints(cpuc, event, breg); - if (d == &emptyconstraint) { - __intel_shared_reg_put_constraints(cpuc, xreg); - c = d; - } - } - return c; -} - -struct event_constraint * -x86_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event) -{ - struct event_constraint *c; - - if (x86_pmu.event_constraints) { - for_each_event_constraint(c, x86_pmu.event_constraints) { - if ((event->hw.config & c->cmask) == c->code) - return c; - } - } - - return &unconstrained; -} - -static struct event_constraint * -intel_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event) -{ - struct event_constraint *c; - - c = intel_bts_constraints(event); - if (c) - return c; - - c = intel_pebs_constraints(event); - if (c) - return c; - - c = intel_shared_regs_constraints(cpuc, event); - if (c) - return c; - - return x86_get_event_constraints(cpuc, event); -} - -static void -intel_put_shared_regs_event_constraints(struct cpu_hw_events *cpuc, - struct perf_event *event) -{ - struct hw_perf_event_extra *reg; - - reg = &event->hw.extra_reg; - if (reg->idx != EXTRA_REG_NONE) - __intel_shared_reg_put_constraints(cpuc, reg); - - reg = &event->hw.branch_reg; - if (reg->idx != EXTRA_REG_NONE) - __intel_shared_reg_put_constraints(cpuc, reg); -} - -static void intel_put_event_constraints(struct cpu_hw_events *cpuc, - struct perf_event *event) -{ - intel_put_shared_regs_event_constraints(cpuc, event); -} - -static int intel_pmu_hw_config(struct perf_event *event) -{ - int ret = x86_pmu_hw_config(event); - - if (ret) - return ret; - - if (event->attr.precise_ip && - (event->hw.config & X86_RAW_EVENT_MASK) == 0x003c) { - /* - * Use an alternative encoding for CPU_CLK_UNHALTED.THREAD_P - * (0x003c) so that we can use it with PEBS. - * - * The regular CPU_CLK_UNHALTED.THREAD_P event (0x003c) isn't - * PEBS capable. However we can use INST_RETIRED.ANY_P - * (0x00c0), which is a PEBS capable event, to get the same - * count. - * - * INST_RETIRED.ANY_P counts the number of cycles that retires - * CNTMASK instructions. By setting CNTMASK to a value (16) - * larger than the maximum number of instructions that can be - * retired per cycle (4) and then inverting the condition, we - * count all cycles that retire 16 or less instructions, which - * is every cycle. - * - * Thereby we gain a PEBS capable cycle counter. - */ - u64 alt_config = X86_CONFIG(.event=0xc0, .inv=1, .cmask=16); - - - alt_config |= (event->hw.config & ~X86_RAW_EVENT_MASK); - event->hw.config = alt_config; - } - - if (intel_pmu_needs_lbr_smpl(event)) { - ret = intel_pmu_setup_lbr_filter(event); - if (ret) - return ret; - } - - if (event->attr.type != PERF_TYPE_RAW) - return 0; - - if (!(event->attr.config & ARCH_PERFMON_EVENTSEL_ANY)) - return 0; - - if (x86_pmu.version < 3) - return -EINVAL; - - if (perf_paranoid_cpu() && !capable(CAP_SYS_ADMIN)) - return -EACCES; - - event->hw.config |= ARCH_PERFMON_EVENTSEL_ANY; - - return 0; -} - -struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr) -{ - if (x86_pmu.guest_get_msrs) - return x86_pmu.guest_get_msrs(nr); - *nr = 0; - return NULL; -} -EXPORT_SYMBOL_GPL(perf_guest_get_msrs); - -static struct perf_guest_switch_msr *intel_guest_get_msrs(int *nr) -{ - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); - struct perf_guest_switch_msr *arr = cpuc->guest_switch_msrs; - - arr[0].msr = MSR_CORE_PERF_GLOBAL_CTRL; - arr[0].host = x86_pmu.intel_ctrl & ~cpuc->intel_ctrl_guest_mask; - arr[0].guest = x86_pmu.intel_ctrl & ~cpuc->intel_ctrl_host_mask; - - *nr = 1; - return arr; -} - -static struct perf_guest_switch_msr *core_guest_get_msrs(int *nr) -{ - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); - struct perf_guest_switch_msr *arr = cpuc->guest_switch_msrs; - int idx; - - for (idx = 0; idx < x86_pmu.num_counters; idx++) { - struct perf_event *event = cpuc->events[idx]; - - arr[idx].msr = x86_pmu_config_addr(idx); - arr[idx].host = arr[idx].guest = 0; - - if (!test_bit(idx, cpuc->active_mask)) - continue; - - arr[idx].host = arr[idx].guest = - event->hw.config | ARCH_PERFMON_EVENTSEL_ENABLE; - - if (event->attr.exclude_host) - arr[idx].host &= ~ARCH_PERFMON_EVENTSEL_ENABLE; - else if (event->attr.exclude_guest) - arr[idx].guest &= ~ARCH_PERFMON_EVENTSEL_ENABLE; - } - - *nr = x86_pmu.num_counters; - return arr; -} - -static void core_pmu_enable_event(struct perf_event *event) -{ - if (!event->attr.exclude_host) - x86_pmu_enable_event(event); -} - -static void core_pmu_enable_all(int added) -{ - struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); - int idx; - - for (idx = 0; idx < x86_pmu.num_counters; idx++) { - struct hw_perf_event *hwc = &cpuc->events[idx]->hw; - - if (!test_bit(idx, cpuc->active_mask) || - cpuc->events[idx]->attr.exclude_host) - continue; - - __x86_pmu_enable_event(hwc, ARCH_PERFMON_EVENTSEL_ENABLE); - } -} - -PMU_FORMAT_ATTR(event, "config:0-7" ); -PMU_FORMAT_ATTR(umask, "config:8-15" ); -PMU_FORMAT_ATTR(edge, "config:18" ); -PMU_FORMAT_ATTR(pc, "config:19" ); -PMU_FORMAT_ATTR(any, "config:21" ); /* v3 + */ -PMU_FORMAT_ATTR(inv, "config:23" ); -PMU_FORMAT_ATTR(cmask, "config:24-31" ); - -static struct attribute *intel_arch_formats_attr[] = { - &format_attr_event.attr, - &format_attr_umask.attr, - &format_attr_edge.attr, - &format_attr_pc.attr, - &format_attr_inv.attr, - &format_attr_cmask.attr, - NULL, -}; - -static __initconst const struct x86_pmu core_pmu = { - .name = "core", - .handle_irq = x86_pmu_handle_irq, - .disable_all = x86_pmu_disable_all, - .enable_all = core_pmu_enable_all, - .enable = core_pmu_enable_event, - .disable = x86_pmu_disable_event, - .hw_config = x86_pmu_hw_config, - .schedule_events = x86_schedule_events, - .eventsel = MSR_ARCH_PERFMON_EVENTSEL0, - .perfctr = MSR_ARCH_PERFMON_PERFCTR0, - .event_map = intel_pmu_event_map, - .max_events = ARRAY_SIZE(intel_perfmon_event_map), - .apic = 1, - /* - * Intel PMCs cannot be accessed sanely above 32 bit width, - * so we install an artificial 1<<31 period regardless of - * the generic event period: - */ - .max_period = (1ULL << 31) - 1, - .get_event_constraints = intel_get_event_constraints, - .put_event_constraints = intel_put_event_constraints, - .event_constraints = intel_core_event_constraints, - .guest_get_msrs = core_guest_get_msrs, - .format_attrs = intel_arch_formats_attr, -}; - -struct intel_shared_regs *allocate_shared_regs(int cpu) -{ - struct intel_shared_regs *regs; - int i; - - regs = kzalloc_node(sizeof(struct intel_shared_regs), - GFP_KERNEL, cpu_to_node(cpu)); - if (regs) { - /* - * initialize the locks to keep lockdep happy - */ - for (i = 0; i < EXTRA_REG_MAX; i++) - raw_spin_lock_init(®s->regs[i].lock); - - regs->core_id = -1; - } - return regs; -} - -static int intel_pmu_cpu_prepare(int cpu) -{ - struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); - - if (!(x86_pmu.extra_regs || x86_pmu.lbr_sel_map)) - return NOTIFY_OK; - - cpuc->shared_regs = allocate_shared_regs(cpu); - if (!cpuc->shared_regs) - return NOTIFY_BAD; - - return NOTIFY_OK; -} - -static void intel_pmu_cpu_starting(int cpu) -{ - struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); - int core_id = topology_core_id(cpu); - int i; - - init_debug_store_on_cpu(cpu); - /* - * Deal with CPUs that don't clear their LBRs on power-up. - */ - intel_pmu_lbr_reset(); - - cpuc->lbr_sel = NULL; - - if (!cpuc->shared_regs) - return; - - if (!(x86_pmu.er_flags & ERF_NO_HT_SHARING)) { - for_each_cpu(i, topology_thread_cpumask(cpu)) { - struct intel_shared_regs *pc; - - pc = per_cpu(cpu_hw_events, i).shared_regs; - if (pc && pc->core_id == core_id) { - cpuc->kfree_on_online = cpuc->shared_regs; - cpuc->shared_regs = pc; - break; - } - } - cpuc->shared_regs->core_id = core_id; - cpuc->shared_regs->refcnt++; - } - - if (x86_pmu.lbr_sel_map) - cpuc->lbr_sel = &cpuc->shared_regs->regs[EXTRA_REG_LBR]; -} - -static void intel_pmu_cpu_dying(int cpu) -{ - struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); - struct intel_shared_regs *pc; - - pc = cpuc->shared_regs; - if (pc) { - if (pc->core_id == -1 || --pc->refcnt == 0) - kfree(pc); - cpuc->shared_regs = NULL; - } - - fini_debug_store_on_cpu(cpu); -} - -static void intel_pmu_flush_branch_stack(void) -{ - /* - * Intel LBR does not tag entries with the - * PID of the current task, then we need to - * flush it on ctxsw - * For now, we simply reset it - */ - if (x86_pmu.lbr_nr) - intel_pmu_lbr_reset(); -} - -PMU_FORMAT_ATTR(offcore_rsp, "config1:0-63"); - -static struct attribute *intel_arch3_formats_attr[] = { - &format_attr_event.attr, - &format_attr_umask.attr, - &format_attr_edge.attr, - &format_attr_pc.attr, - &format_attr_any.attr, - &format_attr_inv.attr, - &format_attr_cmask.attr, - - &format_attr_offcore_rsp.attr, /* XXX do NHM/WSM + SNB breakout */ - NULL, -}; - -static __initconst const struct x86_pmu intel_pmu = { - .name = "Intel", - .handle_irq = intel_pmu_handle_irq, - .disable_all = intel_pmu_disable_all, - .enable_all = intel_pmu_enable_all, - .enable = intel_pmu_enable_event, - .disable = intel_pmu_disable_event, - .hw_config = intel_pmu_hw_config, - .schedule_events = x86_schedule_events, - .eventsel = MSR_ARCH_PERFMON_EVENTSEL0, - .perfctr = MSR_ARCH_PERFMON_PERFCTR0, - .event_map = intel_pmu_event_map, - .max_events = ARRAY_SIZE(intel_perfmon_event_map), - .apic = 1, - /* - * Intel PMCs cannot be accessed sanely above 32 bit width, - * so we install an artificial 1<<31 period regardless of - * the generic event period: - */ - .max_period = (1ULL << 31) - 1, - .get_event_constraints = intel_get_event_constraints, - .put_event_constraints = intel_put_event_constraints, - - .format_attrs = intel_arch3_formats_attr, - - .cpu_prepare = intel_pmu_cpu_prepare, - .cpu_starting = intel_pmu_cpu_starting, - .cpu_dying = intel_pmu_cpu_dying, - .guest_get_msrs = intel_guest_get_msrs, - .flush_branch_stack = intel_pmu_flush_branch_stack, -}; - -static __init void intel_clovertown_quirk(void) -{ - /* - * PEBS is unreliable due to: - * - * AJ67 - PEBS may experience CPL leaks - * AJ68 - PEBS PMI may be delayed by one event - * AJ69 - GLOBAL_STATUS[62] will only be set when DEBUGCTL[12] - * AJ106 - FREEZE_LBRS_ON_PMI doesn't work in combination with PEBS - * - * AJ67 could be worked around by restricting the OS/USR flags. - * AJ69 could be worked around by setting PMU_FREEZE_ON_PMI. - * - * AJ106 could possibly be worked around by not allowing LBR - * usage from PEBS, including the fixup. - * AJ68 could possibly be worked around by always programming - * a pebs_event_reset[0] value and coping with the lost events. - * - * But taken together it might just make sense to not enable PEBS on - * these chips. - */ - printk(KERN_WARNING "PEBS disabled due to CPU errata.\n"); - x86_pmu.pebs = 0; - x86_pmu.pebs_constraints = NULL; -} - -static __init void intel_sandybridge_quirk(void) -{ - printk(KERN_WARNING "PEBS disabled due to CPU errata.\n"); - x86_pmu.pebs = 0; - x86_pmu.pebs_constraints = NULL; -} - -static const struct { int id; char *name; } intel_arch_events_map[] __initconst = { - { PERF_COUNT_HW_CPU_CYCLES, "cpu cycles" }, - { PERF_COUNT_HW_INSTRUCTIONS, "instructions" }, - { PERF_COUNT_HW_BUS_CYCLES, "bus cycles" }, - { PERF_COUNT_HW_CACHE_REFERENCES, "cache references" }, - { PERF_COUNT_HW_CACHE_MISSES, "cache misses" }, - { PERF_COUNT_HW_BRANCH_INSTRUCTIONS, "branch instructions" }, - { PERF_COUNT_HW_BRANCH_MISSES, "branch misses" }, -}; - -static __init void intel_arch_events_quirk(void) -{ - int bit; - - /* disable event that reported as not presend by cpuid */ - for_each_set_bit(bit, x86_pmu.events_mask, ARRAY_SIZE(intel_arch_events_map)) { - intel_perfmon_event_map[intel_arch_events_map[bit].id] = 0; - printk(KERN_WARNING "CPUID marked event: \'%s\' unavailable\n", - intel_arch_events_map[bit].name); - } -} - -static __init void intel_nehalem_quirk(void) -{ - union cpuid10_ebx ebx; - - ebx.full = x86_pmu.events_maskl; - if (ebx.split.no_branch_misses_retired) { - /* - * Erratum AAJ80 detected, we work it around by using - * the BR_MISP_EXEC.ANY event. This will over-count - * branch-misses, but it's still much better than the - * architectural event which is often completely bogus: - */ - intel_perfmon_event_map[PERF_COUNT_HW_BRANCH_MISSES] = 0x7f89; - ebx.split.no_branch_misses_retired = 0; - x86_pmu.events_maskl = ebx.full; - printk(KERN_INFO "CPU erratum AAJ80 worked around\n"); - } -} - -__init int intel_pmu_init(void) -{ - union cpuid10_edx edx; - union cpuid10_eax eax; - union cpuid10_ebx ebx; - unsigned int unused; - int version; - - if (!cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { - switch (boot_cpu_data.x86) { - case 0x6: - return p6_pmu_init(); - case 0xf: - return p4_pmu_init(); - } - return -ENODEV; - } - - /* - * Check whether the Architectural PerfMon supports - * Branch Misses Retired hw_event or not. - */ - cpuid(10, &eax.full, &ebx.full, &unused, &edx.full); - if (eax.split.mask_length < ARCH_PERFMON_EVENTS_COUNT) - return -ENODEV; - - version = eax.split.version_id; - if (version < 2) - x86_pmu = core_pmu; - else - x86_pmu = intel_pmu; - - x86_pmu.version = version; - x86_pmu.num_counters = eax.split.num_counters; - x86_pmu.cntval_bits = eax.split.bit_width; - x86_pmu.cntval_mask = (1ULL << eax.split.bit_width) - 1; - - x86_pmu.events_maskl = ebx.full; - x86_pmu.events_mask_len = eax.split.mask_length; - - /* - * Quirk: v2 perfmon does not report fixed-purpose events, so - * assume at least 3 events: - */ - if (version > 1) - x86_pmu.num_counters_fixed = max((int)edx.split.num_counters_fixed, 3); - - /* - * v2 and above have a perf capabilities MSR - */ - if (version > 1) { - u64 capabilities; - - rdmsrl(MSR_IA32_PERF_CAPABILITIES, capabilities); - x86_pmu.intel_cap.capabilities = capabilities; - } - - intel_ds_init(); - - x86_add_quirk(intel_arch_events_quirk); /* Install first, so it runs last */ - - /* - * Install the hw-cache-events table: - */ - switch (boot_cpu_data.x86_model) { - case 14: /* 65 nm core solo/duo, "Yonah" */ - pr_cont("Core events, "); - break; - - case 15: /* original 65 nm celeron/pentium/core2/xeon, "Merom"/"Conroe" */ - x86_add_quirk(intel_clovertown_quirk); - case 22: /* single-core 65 nm celeron/core2solo "Merom-L"/"Conroe-L" */ - case 23: /* current 45 nm celeron/core2/xeon "Penryn"/"Wolfdale" */ - case 29: /* six-core 45 nm xeon "Dunnington" */ - memcpy(hw_cache_event_ids, core2_hw_cache_event_ids, - sizeof(hw_cache_event_ids)); - - intel_pmu_lbr_init_core(); - - x86_pmu.event_constraints = intel_core2_event_constraints; - x86_pmu.pebs_constraints = intel_core2_pebs_event_constraints; - pr_cont("Core2 events, "); - break; - - case 26: /* 45 nm nehalem, "Bloomfield" */ - case 30: /* 45 nm nehalem, "Lynnfield" */ - case 46: /* 45 nm nehalem-ex, "Beckton" */ - memcpy(hw_cache_event_ids, nehalem_hw_cache_event_ids, - sizeof(hw_cache_event_ids)); - memcpy(hw_cache_extra_regs, nehalem_hw_cache_extra_regs, - sizeof(hw_cache_extra_regs)); - - intel_pmu_lbr_init_nhm(); - - x86_pmu.event_constraints = intel_nehalem_event_constraints; - x86_pmu.pebs_constraints = intel_nehalem_pebs_event_constraints; - x86_pmu.enable_all = intel_pmu_nhm_enable_all; - x86_pmu.extra_regs = intel_nehalem_extra_regs; - - /* UOPS_ISSUED.STALLED_CYCLES */ - intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = - X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1); - /* UOPS_EXECUTED.CORE_ACTIVE_CYCLES,c=1,i=1 */ - intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = - X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1); - - x86_add_quirk(intel_nehalem_quirk); - - pr_cont("Nehalem events, "); - break; - - case 28: /* Atom */ - memcpy(hw_cache_event_ids, atom_hw_cache_event_ids, - sizeof(hw_cache_event_ids)); - - intel_pmu_lbr_init_atom(); - - x86_pmu.event_constraints = intel_gen_event_constraints; - x86_pmu.pebs_constraints = intel_atom_pebs_event_constraints; - pr_cont("Atom events, "); - break; - - case 37: /* 32 nm nehalem, "Clarkdale" */ - case 44: /* 32 nm nehalem, "Gulftown" */ - case 47: /* 32 nm Xeon E7 */ - memcpy(hw_cache_event_ids, westmere_hw_cache_event_ids, - sizeof(hw_cache_event_ids)); - memcpy(hw_cache_extra_regs, nehalem_hw_cache_extra_regs, - sizeof(hw_cache_extra_regs)); - - intel_pmu_lbr_init_nhm(); - - x86_pmu.event_constraints = intel_westmere_event_constraints; - x86_pmu.enable_all = intel_pmu_nhm_enable_all; - x86_pmu.pebs_constraints = intel_westmere_pebs_event_constraints; - x86_pmu.extra_regs = intel_westmere_extra_regs; - x86_pmu.er_flags |= ERF_HAS_RSP_1; - - /* UOPS_ISSUED.STALLED_CYCLES */ - intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = - X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1); - /* UOPS_EXECUTED.CORE_ACTIVE_CYCLES,c=1,i=1 */ - intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = - X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1); - - pr_cont("Westmere events, "); - break; - - case 42: /* SandyBridge */ - x86_add_quirk(intel_sandybridge_quirk); - case 45: /* SandyBridge, "Romely-EP" */ - memcpy(hw_cache_event_ids, snb_hw_cache_event_ids, - sizeof(hw_cache_event_ids)); - - intel_pmu_lbr_init_snb(); - - x86_pmu.event_constraints = intel_snb_event_constraints; - x86_pmu.pebs_constraints = intel_snb_pebs_event_constraints; - x86_pmu.extra_regs = intel_snb_extra_regs; - /* all extra regs are per-cpu when HT is on */ - x86_pmu.er_flags |= ERF_HAS_RSP_1; - x86_pmu.er_flags |= ERF_NO_HT_SHARING; - - /* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */ - intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = - X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1); - /* UOPS_DISPATCHED.THREAD,c=1,i=1 to count stall cycles*/ - intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = - X86_CONFIG(.event=0xb1, .umask=0x01, .inv=1, .cmask=1); - - pr_cont("SandyBridge events, "); - break; - - default: - switch (x86_pmu.version) { - case 1: - x86_pmu.event_constraints = intel_v1_event_constraints; - pr_cont("generic architected perfmon v1, "); - break; - default: - /* - * default constraints for v2 and up - */ - x86_pmu.event_constraints = intel_gen_event_constraints; - pr_cont("generic architected perfmon, "); - break; - } - } - - return 0; -} |