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Date: Fri, 26 Feb 2010 14:54:50 GMT
From: tip-bot for Peter Zijlstra <a.p.zijlstra@...llo.nl>
To: linux-tip-commits@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
a.p.zijlstra@...llo.nl, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:perf/core] perf_events, x86: Split PMU definitions into separate files
Commit-ID: f22f54f4491acd987a6c5a92de52b60ca8b58b61
Gitweb: http://git.kernel.org/tip/f22f54f4491acd987a6c5a92de52b60ca8b58b61
Author: Peter Zijlstra <a.p.zijlstra@...llo.nl>
AuthorDate: Fri, 26 Feb 2010 12:05:05 +0100
Committer: Ingo Molnar <mingo@...e.hu>
CommitDate: Fri, 26 Feb 2010 15:44:04 +0100
perf_events, x86: Split PMU definitions into separate files
Split amd,p6,intel into separate files so that we can easily deal with
CONFIG_CPU_SUP_* things, needed to make things build now that perf_event.c
relies on symbols from amd.c
Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
arch/x86/kernel/cpu/perf_event.c | 1524 +-------------------------------
arch/x86/kernel/cpu/perf_event_amd.c | 416 +++++++++
arch/x86/kernel/cpu/perf_event_intel.c | 971 ++++++++++++++++++++
arch/x86/kernel/cpu/perf_event_p6.c | 157 ++++
4 files changed, 1554 insertions(+), 1514 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index dd09ccc..641ccb9 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -161,8 +161,6 @@ struct x86_pmu {
static struct x86_pmu x86_pmu __read_mostly;
-static raw_spinlock_t amd_nb_lock;
-
static DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = {
.enabled = 1,
};
@@ -171,140 +169,6 @@ static int x86_perf_event_set_period(struct perf_event *event,
struct hw_perf_event *hwc, int idx);
/*
- * Not sure about some of these
- */
-static const u64 p6_perfmon_event_map[] =
-{
- [PERF_COUNT_HW_CPU_CYCLES] = 0x0079,
- [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
- [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e,
- [PERF_COUNT_HW_CACHE_MISSES] = 0x012e,
- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4,
- [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5,
- [PERF_COUNT_HW_BUS_CYCLES] = 0x0062,
-};
-
-static u64 p6_pmu_event_map(int hw_event)
-{
- return p6_perfmon_event_map[hw_event];
-}
-
-/*
- * Event setting that is specified not to count anything.
- * We use this to effectively disable a counter.
- *
- * L2_RQSTS with 0 MESI unit mask.
- */
-#define P6_NOP_EVENT 0x0000002EULL
-
-static u64 p6_pmu_raw_event(u64 hw_event)
-{
-#define P6_EVNTSEL_EVENT_MASK 0x000000FFULL
-#define P6_EVNTSEL_UNIT_MASK 0x0000FF00ULL
-#define P6_EVNTSEL_EDGE_MASK 0x00040000ULL
-#define P6_EVNTSEL_INV_MASK 0x00800000ULL
-#define P6_EVNTSEL_REG_MASK 0xFF000000ULL
-
-#define P6_EVNTSEL_MASK \
- (P6_EVNTSEL_EVENT_MASK | \
- P6_EVNTSEL_UNIT_MASK | \
- P6_EVNTSEL_EDGE_MASK | \
- P6_EVNTSEL_INV_MASK | \
- P6_EVNTSEL_REG_MASK)
-
- return hw_event & P6_EVNTSEL_MASK;
-}
-
-static struct event_constraint intel_p6_event_constraints[] =
-{
- INTEL_EVENT_CONSTRAINT(0xc1, 0x1), /* FLOPS */
- INTEL_EVENT_CONSTRAINT(0x10, 0x1), /* FP_COMP_OPS_EXE */
- INTEL_EVENT_CONSTRAINT(0x11, 0x1), /* FP_ASSIST */
- INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */
- INTEL_EVENT_CONSTRAINT(0x13, 0x2), /* DIV */
- INTEL_EVENT_CONSTRAINT(0x14, 0x1), /* CYCLES_DIV_BUSY */
- EVENT_CONSTRAINT_END
-};
-
-/*
- * 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];
-}
-
-/*
* Generalized hw caching related hw_event table, filled
* in on a per model basis. A value of 0 means
* 'not supported', -1 means 'hw_event makes no sense on
@@ -319,515 +183,6 @@ static u64 __read_mostly hw_cache_event_ids
[PERF_COUNT_HW_CACHE_OP_MAX]
[PERF_COUNT_HW_CACHE_RESULT_MAX];
-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(RESULT_ACCESS) ] = 0x0,
- [ C(RESULT_MISS) ] = 0x0,
- },
- },
- [ C(LL ) ] = {
- [ C(OP_READ) ] = {
- [ C(RESULT_ACCESS) ] = 0x0324, /* L2_RQSTS.LOADS */
- [ C(RESULT_MISS) ] = 0x0224, /* L2_RQSTS.LD_MISS */
- },
- [ C(OP_WRITE) ] = {
- [ C(RESULT_ACCESS) ] = 0x0c24, /* L2_RQSTS.RFOS */
- [ C(RESULT_MISS) ] = 0x0824, /* L2_RQSTS.RFO_MISS */
- },
- [ C(OP_PREFETCH) ] = {
- [ C(RESULT_ACCESS) ] = 0x4f2e, /* LLC Reference */
- [ C(RESULT_MISS) ] = 0x412e, /* LLC Misses */
- },
- },
- [ 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,
- },
- },
-};
-
-static __initconst 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) ] = 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) ] = 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) ] = {
- [ C(RESULT_ACCESS) ] = 0x0324, /* L2_RQSTS.LOADS */
- [ C(RESULT_MISS) ] = 0x0224, /* L2_RQSTS.LD_MISS */
- },
- [ C(OP_WRITE) ] = {
- [ C(RESULT_ACCESS) ] = 0x0c24, /* L2_RQSTS.RFOS */
- [ C(RESULT_MISS) ] = 0x0824, /* L2_RQSTS.RFO_MISS */
- },
- [ C(OP_PREFETCH) ] = {
- [ C(RESULT_ACCESS) ] = 0x4f2e, /* LLC Reference */
- [ C(RESULT_MISS) ] = 0x412e, /* LLC Misses */
- },
- },
- [ 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,
- },
- },
-};
-
-static __initconst 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 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 u64 intel_pmu_raw_event(u64 hw_event)
-{
-#define CORE_EVNTSEL_EVENT_MASK 0x000000FFULL
-#define CORE_EVNTSEL_UNIT_MASK 0x0000FF00ULL
-#define CORE_EVNTSEL_EDGE_MASK 0x00040000ULL
-#define CORE_EVNTSEL_INV_MASK 0x00800000ULL
-#define CORE_EVNTSEL_REG_MASK 0xFF000000ULL
-
-#define CORE_EVNTSEL_MASK \
- (INTEL_ARCH_EVTSEL_MASK | \
- INTEL_ARCH_UNIT_MASK | \
- INTEL_ARCH_EDGE_MASK | \
- INTEL_ARCH_INV_MASK | \
- INTEL_ARCH_CNT_MASK)
-
- return hw_event & CORE_EVNTSEL_MASK;
-}
-
-static __initconst u64 amd_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) ] = 0x0040, /* Data Cache Accesses */
- [ C(RESULT_MISS) ] = 0x0041, /* Data Cache Misses */
- },
- [ C(OP_WRITE) ] = {
- [ C(RESULT_ACCESS) ] = 0x0142, /* Data Cache Refills :system */
- [ C(RESULT_MISS) ] = 0,
- },
- [ C(OP_PREFETCH) ] = {
- [ C(RESULT_ACCESS) ] = 0x0267, /* Data Prefetcher :attempts */
- [ C(RESULT_MISS) ] = 0x0167, /* Data Prefetcher :cancelled */
- },
- },
- [ C(L1I ) ] = {
- [ C(OP_READ) ] = {
- [ C(RESULT_ACCESS) ] = 0x0080, /* Instruction cache fetches */
- [ C(RESULT_MISS) ] = 0x0081, /* Instruction cache misses */
- },
- [ C(OP_WRITE) ] = {
- [ C(RESULT_ACCESS) ] = -1,
- [ C(RESULT_MISS) ] = -1,
- },
- [ C(OP_PREFETCH) ] = {
- [ C(RESULT_ACCESS) ] = 0x014B, /* Prefetch Instructions :Load */
- [ C(RESULT_MISS) ] = 0,
- },
- },
- [ C(LL ) ] = {
- [ C(OP_READ) ] = {
- [ C(RESULT_ACCESS) ] = 0x037D, /* Requests to L2 Cache :IC+DC */
- [ C(RESULT_MISS) ] = 0x037E, /* L2 Cache Misses : IC+DC */
- },
- [ C(OP_WRITE) ] = {
- [ C(RESULT_ACCESS) ] = 0x017F, /* L2 Fill/Writeback */
- [ C(RESULT_MISS) ] = 0,
- },
- [ C(OP_PREFETCH) ] = {
- [ C(RESULT_ACCESS) ] = 0,
- [ C(RESULT_MISS) ] = 0,
- },
- },
- [ C(DTLB) ] = {
- [ C(OP_READ) ] = {
- [ C(RESULT_ACCESS) ] = 0x0040, /* Data Cache Accesses */
- [ C(RESULT_MISS) ] = 0x0046, /* L1 DTLB and L2 DLTB Miss */
- },
- [ C(OP_WRITE) ] = {
- [ C(RESULT_ACCESS) ] = 0,
- [ C(RESULT_MISS) ] = 0,
- },
- [ C(OP_PREFETCH) ] = {
- [ C(RESULT_ACCESS) ] = 0,
- [ C(RESULT_MISS) ] = 0,
- },
- },
- [ C(ITLB) ] = {
- [ C(OP_READ) ] = {
- [ C(RESULT_ACCESS) ] = 0x0080, /* Instruction fecthes */
- [ C(RESULT_MISS) ] = 0x0085, /* Instr. fetch 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) ] = 0x00c2, /* Retired Branch Instr. */
- [ C(RESULT_MISS) ] = 0x00c3, /* Retired Mispredicted BI */
- },
- [ C(OP_WRITE) ] = {
- [ C(RESULT_ACCESS) ] = -1,
- [ C(RESULT_MISS) ] = -1,
- },
- [ C(OP_PREFETCH) ] = {
- [ C(RESULT_ACCESS) ] = -1,
- [ C(RESULT_MISS) ] = -1,
- },
- },
-};
-
-/*
- * AMD Performance Monitor K7 and later.
- */
-static const u64 amd_perfmon_event_map[] =
-{
- [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
- [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
- [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0080,
- [PERF_COUNT_HW_CACHE_MISSES] = 0x0081,
- [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4,
- [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5,
-};
-
-static u64 amd_pmu_event_map(int hw_event)
-{
- return amd_perfmon_event_map[hw_event];
-}
-
-static u64 amd_pmu_raw_event(u64 hw_event)
-{
-#define K7_EVNTSEL_EVENT_MASK 0xF000000FFULL
-#define K7_EVNTSEL_UNIT_MASK 0x00000FF00ULL
-#define K7_EVNTSEL_EDGE_MASK 0x000040000ULL
-#define K7_EVNTSEL_INV_MASK 0x000800000ULL
-#define K7_EVNTSEL_REG_MASK 0x0FF000000ULL
-
-#define K7_EVNTSEL_MASK \
- (K7_EVNTSEL_EVENT_MASK | \
- K7_EVNTSEL_UNIT_MASK | \
- K7_EVNTSEL_EDGE_MASK | \
- K7_EVNTSEL_INV_MASK | \
- K7_EVNTSEL_REG_MASK)
-
- return hw_event & K7_EVNTSEL_MASK;
-}
-
/*
* Propagate event elapsed time into the generic event.
* Can only be executed on the CPU where the event is active.
@@ -1079,42 +434,6 @@ set_ext_hw_attr(struct hw_perf_event *hwc, struct perf_event_attr *attr)
return 0;
}
-static void intel_pmu_enable_bts(u64 config)
-{
- unsigned long debugctlmsr;
-
- debugctlmsr = get_debugctlmsr();
-
- debugctlmsr |= X86_DEBUGCTL_TR;
- debugctlmsr |= X86_DEBUGCTL_BTS;
- debugctlmsr |= X86_DEBUGCTL_BTINT;
-
- if (!(config & ARCH_PERFMON_EVENTSEL_OS))
- debugctlmsr |= X86_DEBUGCTL_BTS_OFF_OS;
-
- if (!(config & ARCH_PERFMON_EVENTSEL_USR))
- debugctlmsr |= X86_DEBUGCTL_BTS_OFF_USR;
-
- update_debugctlmsr(debugctlmsr);
-}
-
-static void intel_pmu_disable_bts(void)
-{
- struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
- unsigned long debugctlmsr;
-
- if (!cpuc->ds)
- return;
-
- debugctlmsr = get_debugctlmsr();
-
- debugctlmsr &=
- ~(X86_DEBUGCTL_TR | X86_DEBUGCTL_BTS | X86_DEBUGCTL_BTINT |
- X86_DEBUGCTL_BTS_OFF_OS | X86_DEBUGCTL_BTS_OFF_USR);
-
- update_debugctlmsr(debugctlmsr);
-}
-
/*
* Setup the hardware configuration for a given attr_type
*/
@@ -1223,26 +542,6 @@ static int __hw_perf_event_init(struct perf_event *event)
return 0;
}
-static void p6_pmu_disable_all(void)
-{
- u64 val;
-
- /* p6 only has one enable register */
- rdmsrl(MSR_P6_EVNTSEL0, val);
- val &= ~ARCH_PERFMON_EVENTSEL0_ENABLE;
- wrmsrl(MSR_P6_EVNTSEL0, val);
-}
-
-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();
-}
-
static void x86_pmu_disable_all(void)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
@@ -1278,33 +577,6 @@ void hw_perf_disable(void)
x86_pmu.disable_all();
}
-static void p6_pmu_enable_all(void)
-{
- unsigned long val;
-
- /* p6 only has one enable register */
- rdmsrl(MSR_P6_EVNTSEL0, val);
- val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
- wrmsrl(MSR_P6_EVNTSEL0, val);
-}
-
-static void intel_pmu_enable_all(void)
-{
- struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
-
- wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, x86_pmu.intel_ctrl);
-
- 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);
- }
-}
-
static void x86_pmu_enable_all(void)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
@@ -1578,20 +850,6 @@ void hw_perf_enable(void)
x86_pmu.enable_all();
}
-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 inline void __x86_pmu_enable_event(struct hw_perf_event *hwc, int idx)
{
(void)checking_wrmsrl(hwc->config_base + idx,
@@ -1603,47 +861,6 @@ static inline void x86_pmu_disable_event(struct hw_perf_event *hwc, int idx)
(void)checking_wrmsrl(hwc->config_base + idx, hwc->config);
}
-static inline void
-intel_pmu_disable_fixed(struct hw_perf_event *hwc, int __idx)
-{
- int idx = __idx - X86_PMC_IDX_FIXED;
- u64 ctrl_val, mask;
-
- mask = 0xfULL << (idx * 4);
-
- rdmsrl(hwc->config_base, ctrl_val);
- ctrl_val &= ~mask;
- (void)checking_wrmsrl(hwc->config_base, ctrl_val);
-}
-
-static inline void
-p6_pmu_disable_event(struct hw_perf_event *hwc, int idx)
-{
- struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
- u64 val = P6_NOP_EVENT;
-
- if (cpuc->enabled)
- val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
-
- (void)checking_wrmsrl(hwc->config_base + idx, val);
-}
-
-static inline void
-intel_pmu_disable_event(struct hw_perf_event *hwc, int idx)
-{
- if (unlikely(idx == X86_PMC_IDX_FIXED_BTS)) {
- intel_pmu_disable_bts();
- return;
- }
-
- if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) {
- intel_pmu_disable_fixed(hwc, idx);
- return;
- }
-
- x86_pmu_disable_event(hwc, idx);
-}
-
static DEFINE_PER_CPU(u64 [X86_PMC_IDX_MAX], pmc_prev_left);
/*
@@ -1702,70 +919,6 @@ x86_perf_event_set_period(struct perf_event *event,
return ret;
}
-static inline void
-intel_pmu_enable_fixed(struct hw_perf_event *hwc, int __idx)
-{
- int idx = __idx - X86_PMC_IDX_FIXED;
- u64 ctrl_val, bits, mask;
- int err;
-
- /*
- * 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;
- err = checking_wrmsrl(hwc->config_base, ctrl_val);
-}
-
-static void p6_pmu_enable_event(struct hw_perf_event *hwc, int idx)
-{
- struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
- u64 val;
-
- val = hwc->config;
- if (cpuc->enabled)
- val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
-
- (void)checking_wrmsrl(hwc->config_base + idx, val);
-}
-
-
-static void intel_pmu_enable_event(struct hw_perf_event *hwc, int idx)
-{
- if (unlikely(idx == X86_PMC_IDX_FIXED_BTS)) {
- if (!__get_cpu_var(cpu_hw_events).enabled)
- return;
-
- intel_pmu_enable_bts(hwc->config);
- return;
- }
-
- if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) {
- intel_pmu_enable_fixed(hwc, idx);
- return;
- }
-
- __x86_pmu_enable_event(hwc, idx);
-}
-
static void x86_pmu_enable_event(struct hw_perf_event *hwc, int idx)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
@@ -1887,66 +1040,6 @@ void perf_event_print_debug(void)
local_irq_restore(flags);
}
-static void intel_pmu_drain_bts_buffer(struct cpu_hw_events *cpuc)
-{
- struct debug_store *ds = cpuc->ds;
- struct bts_record {
- u64 from;
- u64 to;
- u64 flags;
- };
- struct perf_event *event = cpuc->events[X86_PMC_IDX_FIXED_BTS];
- struct bts_record *at, *top;
- struct perf_output_handle handle;
- struct perf_event_header header;
- struct perf_sample_data data;
- struct pt_regs regs;
-
- if (!event)
- return;
-
- if (!ds)
- return;
-
- at = (struct bts_record *)(unsigned long)ds->bts_buffer_base;
- top = (struct bts_record *)(unsigned long)ds->bts_index;
-
- if (top <= at)
- return;
-
- ds->bts_index = ds->bts_buffer_base;
-
-
- data.period = event->hw.last_period;
- data.addr = 0;
- data.raw = NULL;
- regs.ip = 0;
-
- /*
- * Prepare a generic sample, i.e. fill in the invariant fields.
- * We will overwrite the from and to address before we output
- * the sample.
- */
- perf_prepare_sample(&header, &data, event, ®s);
-
- if (perf_output_begin(&handle, event,
- header.size * (top - at), 1, 1))
- return;
-
- for (; at < top; at++) {
- data.ip = at->from;
- data.addr = at->to;
-
- perf_output_sample(&handle, &header, &data, event);
- }
-
- perf_output_end(&handle);
-
- /* There's new data available. */
- event->hw.interrupts++;
- event->pending_kill = POLL_IN;
-}
-
static void x86_pmu_stop(struct perf_event *event)
{
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
@@ -1966,10 +1059,6 @@ static void x86_pmu_stop(struct perf_event *event)
*/
x86_perf_event_update(event, hwc, idx);
- /* Drain the remaining BTS records. */
- if (unlikely(idx == X86_PMC_IDX_FIXED_BTS))
- intel_pmu_drain_bts_buffer(cpuc);
-
cpuc->events[idx] = NULL;
}
@@ -1996,114 +1085,6 @@ static void x86_pmu_disable(struct perf_event *event)
perf_event_update_userpage(event);
}
-/*
- * Save and restart an expired event. Called by NMI contexts,
- * so it has to be careful about preempting normal event ops:
- */
-static int intel_pmu_save_and_restart(struct perf_event *event)
-{
- struct hw_perf_event *hwc = &event->hw;
- int idx = hwc->idx;
- int ret;
-
- x86_perf_event_update(event, hwc, idx);
- ret = x86_perf_event_set_period(event, hwc, idx);
-
- return ret;
-}
-
-static void intel_pmu_reset(void)
-{
- struct debug_store *ds = __get_cpu_var(cpu_hw_events).ds;
- unsigned long flags;
- int idx;
-
- if (!x86_pmu.num_events)
- return;
-
- local_irq_save(flags);
-
- printk("clearing PMU state on CPU#%d\n", smp_processor_id());
-
- for (idx = 0; idx < x86_pmu.num_events; idx++) {
- checking_wrmsrl(x86_pmu.eventsel + idx, 0ull);
- checking_wrmsrl(x86_pmu.perfctr + idx, 0ull);
- }
- for (idx = 0; idx < x86_pmu.num_events_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 ack, status;
-
- data.addr = 0;
- data.raw = NULL;
-
- cpuc = &__get_cpu_var(cpu_hw_events);
-
- perf_disable();
- intel_pmu_drain_bts_buffer(cpuc);
- status = intel_pmu_get_status();
- if (!status) {
- perf_enable();
- return 0;
- }
-
- loops = 0;
-again:
- if (++loops > 100) {
- WARN_ONCE(1, "perfevents: irq loop stuck!\n");
- perf_event_print_debug();
- intel_pmu_reset();
- perf_enable();
- return 1;
- }
-
- inc_irq_stat(apic_perf_irqs);
- ack = status;
- for_each_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) {
- struct perf_event *event = cpuc->events[bit];
-
- clear_bit(bit, (unsigned long *) &status);
- if (!test_bit(bit, cpuc->active_mask))
- continue;
-
- if (!intel_pmu_save_and_restart(event))
- continue;
-
- data.period = event->hw.last_period;
-
- if (perf_event_overflow(event, 1, &data, regs))
- intel_pmu_disable_event(&event->hw, bit);
- }
-
- intel_pmu_ack_status(ack);
-
- /*
- * Repeat if there is more work to be done:
- */
- status = intel_pmu_get_status();
- if (status)
- goto again;
-
- perf_enable();
-
- return 1;
-}
-
static int x86_pmu_handle_irq(struct pt_regs *regs)
{
struct perf_sample_data data;
@@ -2216,37 +1197,20 @@ perf_event_nmi_handler(struct notifier_block *self,
return NOTIFY_STOP;
}
+static __read_mostly struct notifier_block perf_event_nmi_notifier = {
+ .notifier_call = perf_event_nmi_handler,
+ .next = NULL,
+ .priority = 1
+};
+
static struct event_constraint unconstrained;
static struct event_constraint emptyconstraint;
-static struct event_constraint bts_constraint =
- EVENT_CONSTRAINT(0, 1ULL << X86_PMC_IDX_FIXED_BTS, 0);
-
-static struct event_constraint *
-intel_special_constraints(struct perf_event *event)
-{
- unsigned int hw_event;
-
- hw_event = event->hw.config & INTEL_ARCH_EVENT_MASK;
-
- if (unlikely((hw_event ==
- x86_pmu.event_map(PERF_COUNT_HW_BRANCH_INSTRUCTIONS)) &&
- (event->hw.sample_period == 1))) {
-
- return &bts_constraint;
- }
- return NULL;
-}
-
static struct event_constraint *
-intel_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event)
+x86_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event)
{
struct event_constraint *c;
- c = intel_special_constraints(event);
- if (c)
- return c;
-
if (x86_pmu.event_constraints) {
for_each_event_constraint(c, x86_pmu.event_constraints) {
if ((event->hw.config & c->cmask) == c->code)
@@ -2257,148 +1221,6 @@ intel_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event
return &unconstrained;
}
-/*
- * AMD64 events are detected based on their event codes.
- */
-static inline int amd_is_nb_event(struct hw_perf_event *hwc)
-{
- return (hwc->config & 0xe0) == 0xe0;
-}
-
-static void amd_put_event_constraints(struct cpu_hw_events *cpuc,
- struct perf_event *event)
-{
- struct hw_perf_event *hwc = &event->hw;
- struct amd_nb *nb = cpuc->amd_nb;
- int i;
-
- /*
- * only care about NB events
- */
- if (!(nb && amd_is_nb_event(hwc)))
- return;
-
- /*
- * need to scan whole list because event may not have
- * been assigned during scheduling
- *
- * no race condition possible because event can only
- * be removed on one CPU at a time AND PMU is disabled
- * when we come here
- */
- for (i = 0; i < x86_pmu.num_events; i++) {
- if (nb->owners[i] == event) {
- cmpxchg(nb->owners+i, event, NULL);
- break;
- }
- }
-}
-
- /*
- * AMD64 NorthBridge events need special treatment because
- * counter access needs to be synchronized across all cores
- * of a package. Refer to BKDG section 3.12
- *
- * NB events are events measuring L3 cache, Hypertransport
- * traffic. They are identified by an event code >= 0xe00.
- * They measure events on the NorthBride which is shared
- * by all cores on a package. NB events are counted on a
- * shared set of counters. When a NB event is programmed
- * in a counter, the data actually comes from a shared
- * counter. Thus, access to those counters needs to be
- * synchronized.
- *
- * We implement the synchronization such that no two cores
- * can be measuring NB events using the same counters. Thus,
- * we maintain a per-NB allocation table. The available slot
- * is propagated using the event_constraint structure.
- *
- * We provide only one choice for each NB event based on
- * the fact that only NB events have restrictions. Consequently,
- * if a counter is available, there is a guarantee the NB event
- * will be assigned to it. If no slot is available, an empty
- * constraint is returned and scheduling will eventually fail
- * for this event.
- *
- * Note that all cores attached the same NB compete for the same
- * counters to host NB events, this is why we use atomic ops. Some
- * multi-chip CPUs may have more than one NB.
- *
- * Given that resources are allocated (cmpxchg), they must be
- * eventually freed for others to use. This is accomplished by
- * calling amd_put_event_constraints().
- *
- * Non NB events are not impacted by this restriction.
- */
-static struct event_constraint *
-amd_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event)
-{
- struct hw_perf_event *hwc = &event->hw;
- struct amd_nb *nb = cpuc->amd_nb;
- struct perf_event *old = NULL;
- int max = x86_pmu.num_events;
- int i, j, k = -1;
-
- /*
- * if not NB event or no NB, then no constraints
- */
- if (!(nb && amd_is_nb_event(hwc)))
- return &unconstrained;
-
- /*
- * detect if already present, if so reuse
- *
- * cannot merge with actual allocation
- * because of possible holes
- *
- * event can already be present yet not assigned (in hwc->idx)
- * because of successive calls to x86_schedule_events() from
- * hw_perf_group_sched_in() without hw_perf_enable()
- */
- for (i = 0; i < max; i++) {
- /*
- * keep track of first free slot
- */
- if (k == -1 && !nb->owners[i])
- k = i;
-
- /* already present, reuse */
- if (nb->owners[i] == event)
- goto done;
- }
- /*
- * not present, so grab a new slot
- * starting either at:
- */
- if (hwc->idx != -1) {
- /* previous assignment */
- i = hwc->idx;
- } else if (k != -1) {
- /* start from free slot found */
- i = k;
- } else {
- /*
- * event not found, no slot found in
- * first pass, try again from the
- * beginning
- */
- i = 0;
- }
- j = i;
- do {
- old = cmpxchg(nb->owners+i, NULL, event);
- if (!old)
- break;
- if (++i == max)
- i = 0;
- } while (i != j);
-done:
- if (!old)
- return &nb->event_constraints[i];
-
- return &emptyconstraint;
-}
-
static int x86_event_sched_in(struct perf_event *event,
struct perf_cpu_context *cpuctx)
{
@@ -2509,335 +1331,9 @@ undo:
return ret;
}
-static __read_mostly struct notifier_block perf_event_nmi_notifier = {
- .notifier_call = perf_event_nmi_handler,
- .next = NULL,
- .priority = 1
-};
-
-static __initconst struct x86_pmu p6_pmu = {
- .name = "p6",
- .handle_irq = x86_pmu_handle_irq,
- .disable_all = p6_pmu_disable_all,
- .enable_all = p6_pmu_enable_all,
- .enable = p6_pmu_enable_event,
- .disable = p6_pmu_disable_event,
- .eventsel = MSR_P6_EVNTSEL0,
- .perfctr = MSR_P6_PERFCTR0,
- .event_map = p6_pmu_event_map,
- .raw_event = p6_pmu_raw_event,
- .max_events = ARRAY_SIZE(p6_perfmon_event_map),
- .apic = 1,
- .max_period = (1ULL << 31) - 1,
- .version = 0,
- .num_events = 2,
- /*
- * Events have 40 bits implemented. However they are designed such
- * that bits [32-39] are sign extensions of bit 31. As such the
- * effective width of a event for P6-like PMU is 32 bits only.
- *
- * See IA-32 Intel Architecture Software developer manual Vol 3B
- */
- .event_bits = 32,
- .event_mask = (1ULL << 32) - 1,
- .get_event_constraints = intel_get_event_constraints,
- .event_constraints = intel_p6_event_constraints
-};
-
-static __initconst struct x86_pmu core_pmu = {
- .name = "core",
- .handle_irq = x86_pmu_handle_irq,
- .disable_all = x86_pmu_disable_all,
- .enable_all = x86_pmu_enable_all,
- .enable = x86_pmu_enable_event,
- .disable = x86_pmu_disable_event,
- .eventsel = MSR_ARCH_PERFMON_EVENTSEL0,
- .perfctr = MSR_ARCH_PERFMON_PERFCTR0,
- .event_map = intel_pmu_event_map,
- .raw_event = intel_pmu_raw_event,
- .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,
- .event_constraints = intel_core_event_constraints,
-};
-
-static __initconst 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,
- .eventsel = MSR_ARCH_PERFMON_EVENTSEL0,
- .perfctr = MSR_ARCH_PERFMON_PERFCTR0,
- .event_map = intel_pmu_event_map,
- .raw_event = intel_pmu_raw_event,
- .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,
- .enable_bts = intel_pmu_enable_bts,
- .disable_bts = intel_pmu_disable_bts,
- .get_event_constraints = intel_get_event_constraints
-};
-
-static __initconst struct x86_pmu amd_pmu = {
- .name = "AMD",
- .handle_irq = x86_pmu_handle_irq,
- .disable_all = x86_pmu_disable_all,
- .enable_all = x86_pmu_enable_all,
- .enable = x86_pmu_enable_event,
- .disable = x86_pmu_disable_event,
- .eventsel = MSR_K7_EVNTSEL0,
- .perfctr = MSR_K7_PERFCTR0,
- .event_map = amd_pmu_event_map,
- .raw_event = amd_pmu_raw_event,
- .max_events = ARRAY_SIZE(amd_perfmon_event_map),
- .num_events = 4,
- .event_bits = 48,
- .event_mask = (1ULL << 48) - 1,
- .apic = 1,
- /* use highest bit to detect overflow */
- .max_period = (1ULL << 47) - 1,
- .get_event_constraints = amd_get_event_constraints,
- .put_event_constraints = amd_put_event_constraints
-};
-
-static __init int p6_pmu_init(void)
-{
- switch (boot_cpu_data.x86_model) {
- case 1:
- case 3: /* Pentium Pro */
- case 5:
- case 6: /* Pentium II */
- case 7:
- case 8:
- case 11: /* Pentium III */
- case 9:
- case 13:
- /* Pentium M */
- break;
- default:
- pr_cont("unsupported p6 CPU model %d ",
- boot_cpu_data.x86_model);
- return -ENODEV;
- }
-
- x86_pmu = p6_pmu;
-
- return 0;
-}
-
-static __init int intel_pmu_init(void)
-{
- union cpuid10_edx edx;
- union cpuid10_eax eax;
- unsigned int unused;
- unsigned int ebx;
- int version;
-
- if (!cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) {
- /* check for P6 processor family */
- if (boot_cpu_data.x86 == 6) {
- return p6_pmu_init();
- } else {
- return -ENODEV;
- }
- }
-
- /*
- * Check whether the Architectural PerfMon supports
- * Branch Misses Retired hw_event or not.
- */
- cpuid(10, &eax.full, &ebx, &unused, &edx.full);
- if (eax.split.mask_length <= ARCH_PERFMON_BRANCH_MISSES_RETIRED)
- 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_events = eax.split.num_events;
- x86_pmu.event_bits = eax.split.bit_width;
- x86_pmu.event_mask = (1ULL << eax.split.bit_width) - 1;
-
- /*
- * Quirk: v2 perfmon does not report fixed-purpose events, so
- * assume at least 3 events:
- */
- if (version > 1)
- x86_pmu.num_events_fixed = max((int)edx.split.num_events_fixed, 3);
-
- /*
- * 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" */
- 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));
-
- x86_pmu.event_constraints = intel_core2_event_constraints;
- pr_cont("Core2 events, ");
- break;
-
- case 26: /* 45 nm nehalem, "Bloomfield" */
- case 30: /* 45 nm nehalem, "Lynnfield" */
- memcpy(hw_cache_event_ids, nehalem_hw_cache_event_ids,
- sizeof(hw_cache_event_ids));
-
- x86_pmu.event_constraints = intel_nehalem_event_constraints;
- pr_cont("Nehalem/Corei7 events, ");
- break;
- case 28:
- memcpy(hw_cache_event_ids, atom_hw_cache_event_ids,
- sizeof(hw_cache_event_ids));
-
- x86_pmu.event_constraints = intel_gen_event_constraints;
- pr_cont("Atom events, ");
- break;
-
- case 37: /* 32 nm nehalem, "Clarkdale" */
- case 44: /* 32 nm nehalem, "Gulftown" */
- memcpy(hw_cache_event_ids, westmere_hw_cache_event_ids,
- sizeof(hw_cache_event_ids));
-
- x86_pmu.event_constraints = intel_westmere_event_constraints;
- pr_cont("Westmere events, ");
- break;
- default:
- /*
- * default constraints for v2 and up
- */
- x86_pmu.event_constraints = intel_gen_event_constraints;
- pr_cont("generic architected perfmon, ");
- }
- return 0;
-}
-
-static struct amd_nb *amd_alloc_nb(int cpu, int nb_id)
-{
- struct amd_nb *nb;
- int i;
-
- nb = kmalloc(sizeof(struct amd_nb), GFP_KERNEL);
- if (!nb)
- return NULL;
-
- memset(nb, 0, sizeof(*nb));
- nb->nb_id = nb_id;
-
- /*
- * initialize all possible NB constraints
- */
- for (i = 0; i < x86_pmu.num_events; i++) {
- set_bit(i, nb->event_constraints[i].idxmsk);
- nb->event_constraints[i].weight = 1;
- }
- return nb;
-}
-
-static void amd_pmu_cpu_online(int cpu)
-{
- struct cpu_hw_events *cpu1, *cpu2;
- struct amd_nb *nb = NULL;
- int i, nb_id;
-
- if (boot_cpu_data.x86_max_cores < 2)
- return;
-
- /*
- * function may be called too early in the
- * boot process, in which case nb_id is bogus
- */
- nb_id = amd_get_nb_id(cpu);
- if (nb_id == BAD_APICID)
- return;
-
- cpu1 = &per_cpu(cpu_hw_events, cpu);
- cpu1->amd_nb = NULL;
-
- raw_spin_lock(&amd_nb_lock);
-
- for_each_online_cpu(i) {
- cpu2 = &per_cpu(cpu_hw_events, i);
- nb = cpu2->amd_nb;
- if (!nb)
- continue;
- if (nb->nb_id == nb_id)
- goto found;
- }
-
- nb = amd_alloc_nb(cpu, nb_id);
- if (!nb) {
- pr_err("perf_events: failed NB allocation for CPU%d\n", cpu);
- raw_spin_unlock(&amd_nb_lock);
- return;
- }
-found:
- nb->refcnt++;
- cpu1->amd_nb = nb;
-
- raw_spin_unlock(&amd_nb_lock);
-}
-
-static void amd_pmu_cpu_offline(int cpu)
-{
- struct cpu_hw_events *cpuhw;
-
- if (boot_cpu_data.x86_max_cores < 2)
- return;
-
- cpuhw = &per_cpu(cpu_hw_events, cpu);
-
- raw_spin_lock(&amd_nb_lock);
-
- if (--cpuhw->amd_nb->refcnt == 0)
- kfree(cpuhw->amd_nb);
-
- cpuhw->amd_nb = NULL;
-
- raw_spin_unlock(&amd_nb_lock);
-}
-
-static __init int amd_pmu_init(void)
-{
- /* Performance-monitoring supported from K7 and later: */
- if (boot_cpu_data.x86 < 6)
- return -ENODEV;
-
- x86_pmu = amd_pmu;
-
- /* Events are common for all AMDs */
- memcpy(hw_cache_event_ids, amd_hw_cache_event_ids,
- sizeof(hw_cache_event_ids));
-
- /*
- * explicitly initialize the boot cpu, other cpus will get
- * the cpu hotplug callbacks from smp_init()
- */
- amd_pmu_cpu_online(smp_processor_id());
- return 0;
-}
+#include "perf_event_amd.c"
+#include "perf_event_p6.c"
+#include "perf_event_intel.c"
static void __init pmu_check_apic(void)
{
diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c
new file mode 100644
index 0000000..6d28e08
--- /dev/null
+++ b/arch/x86/kernel/cpu/perf_event_amd.c
@@ -0,0 +1,416 @@
+#ifdef CONFIG_CPU_SUP_AMD
+
+static raw_spinlock_t amd_nb_lock;
+
+static __initconst u64 amd_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) ] = 0x0040, /* Data Cache Accesses */
+ [ C(RESULT_MISS) ] = 0x0041, /* Data Cache Misses */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0142, /* Data Cache Refills :system */
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0267, /* Data Prefetcher :attempts */
+ [ C(RESULT_MISS) ] = 0x0167, /* Data Prefetcher :cancelled */
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0080, /* Instruction cache fetches */
+ [ C(RESULT_MISS) ] = 0x0081, /* Instruction cache misses */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x014B, /* Prefetch Instructions :Load */
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x037D, /* Requests to L2 Cache :IC+DC */
+ [ C(RESULT_MISS) ] = 0x037E, /* L2 Cache Misses : IC+DC */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x017F, /* L2 Fill/Writeback */
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0040, /* Data Cache Accesses */
+ [ C(RESULT_MISS) ] = 0x0046, /* L1 DTLB and L2 DLTB Miss */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0080, /* Instruction fecthes */
+ [ C(RESULT_MISS) ] = 0x0085, /* Instr. fetch 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) ] = 0x00c2, /* Retired Branch Instr. */
+ [ C(RESULT_MISS) ] = 0x00c3, /* Retired Mispredicted BI */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+};
+
+/*
+ * AMD Performance Monitor K7 and later.
+ */
+static const u64 amd_perfmon_event_map[] =
+{
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0080,
+ [PERF_COUNT_HW_CACHE_MISSES] = 0x0081,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4,
+ [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5,
+};
+
+static u64 amd_pmu_event_map(int hw_event)
+{
+ return amd_perfmon_event_map[hw_event];
+}
+
+static u64 amd_pmu_raw_event(u64 hw_event)
+{
+#define K7_EVNTSEL_EVENT_MASK 0xF000000FFULL
+#define K7_EVNTSEL_UNIT_MASK 0x00000FF00ULL
+#define K7_EVNTSEL_EDGE_MASK 0x000040000ULL
+#define K7_EVNTSEL_INV_MASK 0x000800000ULL
+#define K7_EVNTSEL_REG_MASK 0x0FF000000ULL
+
+#define K7_EVNTSEL_MASK \
+ (K7_EVNTSEL_EVENT_MASK | \
+ K7_EVNTSEL_UNIT_MASK | \
+ K7_EVNTSEL_EDGE_MASK | \
+ K7_EVNTSEL_INV_MASK | \
+ K7_EVNTSEL_REG_MASK)
+
+ return hw_event & K7_EVNTSEL_MASK;
+}
+
+/*
+ * AMD64 events are detected based on their event codes.
+ */
+static inline int amd_is_nb_event(struct hw_perf_event *hwc)
+{
+ return (hwc->config & 0xe0) == 0xe0;
+}
+
+static void amd_put_event_constraints(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct amd_nb *nb = cpuc->amd_nb;
+ int i;
+
+ /*
+ * only care about NB events
+ */
+ if (!(nb && amd_is_nb_event(hwc)))
+ return;
+
+ /*
+ * need to scan whole list because event may not have
+ * been assigned during scheduling
+ *
+ * no race condition possible because event can only
+ * be removed on one CPU at a time AND PMU is disabled
+ * when we come here
+ */
+ for (i = 0; i < x86_pmu.num_events; i++) {
+ if (nb->owners[i] == event) {
+ cmpxchg(nb->owners+i, event, NULL);
+ break;
+ }
+ }
+}
+
+ /*
+ * AMD64 NorthBridge events need special treatment because
+ * counter access needs to be synchronized across all cores
+ * of a package. Refer to BKDG section 3.12
+ *
+ * NB events are events measuring L3 cache, Hypertransport
+ * traffic. They are identified by an event code >= 0xe00.
+ * They measure events on the NorthBride which is shared
+ * by all cores on a package. NB events are counted on a
+ * shared set of counters. When a NB event is programmed
+ * in a counter, the data actually comes from a shared
+ * counter. Thus, access to those counters needs to be
+ * synchronized.
+ *
+ * We implement the synchronization such that no two cores
+ * can be measuring NB events using the same counters. Thus,
+ * we maintain a per-NB allocation table. The available slot
+ * is propagated using the event_constraint structure.
+ *
+ * We provide only one choice for each NB event based on
+ * the fact that only NB events have restrictions. Consequently,
+ * if a counter is available, there is a guarantee the NB event
+ * will be assigned to it. If no slot is available, an empty
+ * constraint is returned and scheduling will eventually fail
+ * for this event.
+ *
+ * Note that all cores attached the same NB compete for the same
+ * counters to host NB events, this is why we use atomic ops. Some
+ * multi-chip CPUs may have more than one NB.
+ *
+ * Given that resources are allocated (cmpxchg), they must be
+ * eventually freed for others to use. This is accomplished by
+ * calling amd_put_event_constraints().
+ *
+ * Non NB events are not impacted by this restriction.
+ */
+static struct event_constraint *
+amd_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct amd_nb *nb = cpuc->amd_nb;
+ struct perf_event *old = NULL;
+ int max = x86_pmu.num_events;
+ int i, j, k = -1;
+
+ /*
+ * if not NB event or no NB, then no constraints
+ */
+ if (!(nb && amd_is_nb_event(hwc)))
+ return &unconstrained;
+
+ /*
+ * detect if already present, if so reuse
+ *
+ * cannot merge with actual allocation
+ * because of possible holes
+ *
+ * event can already be present yet not assigned (in hwc->idx)
+ * because of successive calls to x86_schedule_events() from
+ * hw_perf_group_sched_in() without hw_perf_enable()
+ */
+ for (i = 0; i < max; i++) {
+ /*
+ * keep track of first free slot
+ */
+ if (k == -1 && !nb->owners[i])
+ k = i;
+
+ /* already present, reuse */
+ if (nb->owners[i] == event)
+ goto done;
+ }
+ /*
+ * not present, so grab a new slot
+ * starting either at:
+ */
+ if (hwc->idx != -1) {
+ /* previous assignment */
+ i = hwc->idx;
+ } else if (k != -1) {
+ /* start from free slot found */
+ i = k;
+ } else {
+ /*
+ * event not found, no slot found in
+ * first pass, try again from the
+ * beginning
+ */
+ i = 0;
+ }
+ j = i;
+ do {
+ old = cmpxchg(nb->owners+i, NULL, event);
+ if (!old)
+ break;
+ if (++i == max)
+ i = 0;
+ } while (i != j);
+done:
+ if (!old)
+ return &nb->event_constraints[i];
+
+ return &emptyconstraint;
+}
+
+static __initconst struct x86_pmu amd_pmu = {
+ .name = "AMD",
+ .handle_irq = x86_pmu_handle_irq,
+ .disable_all = x86_pmu_disable_all,
+ .enable_all = x86_pmu_enable_all,
+ .enable = x86_pmu_enable_event,
+ .disable = x86_pmu_disable_event,
+ .eventsel = MSR_K7_EVNTSEL0,
+ .perfctr = MSR_K7_PERFCTR0,
+ .event_map = amd_pmu_event_map,
+ .raw_event = amd_pmu_raw_event,
+ .max_events = ARRAY_SIZE(amd_perfmon_event_map),
+ .num_events = 4,
+ .event_bits = 48,
+ .event_mask = (1ULL << 48) - 1,
+ .apic = 1,
+ /* use highest bit to detect overflow */
+ .max_period = (1ULL << 47) - 1,
+ .get_event_constraints = amd_get_event_constraints,
+ .put_event_constraints = amd_put_event_constraints
+};
+
+static struct amd_nb *amd_alloc_nb(int cpu, int nb_id)
+{
+ struct amd_nb *nb;
+ int i;
+
+ nb = kmalloc(sizeof(struct amd_nb), GFP_KERNEL);
+ if (!nb)
+ return NULL;
+
+ memset(nb, 0, sizeof(*nb));
+ nb->nb_id = nb_id;
+
+ /*
+ * initialize all possible NB constraints
+ */
+ for (i = 0; i < x86_pmu.num_events; i++) {
+ set_bit(i, nb->event_constraints[i].idxmsk);
+ nb->event_constraints[i].weight = 1;
+ }
+ return nb;
+}
+
+static void amd_pmu_cpu_online(int cpu)
+{
+ struct cpu_hw_events *cpu1, *cpu2;
+ struct amd_nb *nb = NULL;
+ int i, nb_id;
+
+ if (boot_cpu_data.x86_max_cores < 2)
+ return;
+
+ /*
+ * function may be called too early in the
+ * boot process, in which case nb_id is bogus
+ */
+ nb_id = amd_get_nb_id(cpu);
+ if (nb_id == BAD_APICID)
+ return;
+
+ cpu1 = &per_cpu(cpu_hw_events, cpu);
+ cpu1->amd_nb = NULL;
+
+ raw_spin_lock(&amd_nb_lock);
+
+ for_each_online_cpu(i) {
+ cpu2 = &per_cpu(cpu_hw_events, i);
+ nb = cpu2->amd_nb;
+ if (!nb)
+ continue;
+ if (nb->nb_id == nb_id)
+ goto found;
+ }
+
+ nb = amd_alloc_nb(cpu, nb_id);
+ if (!nb) {
+ pr_err("perf_events: failed NB allocation for CPU%d\n", cpu);
+ raw_spin_unlock(&amd_nb_lock);
+ return;
+ }
+found:
+ nb->refcnt++;
+ cpu1->amd_nb = nb;
+
+ raw_spin_unlock(&amd_nb_lock);
+}
+
+static void amd_pmu_cpu_offline(int cpu)
+{
+ struct cpu_hw_events *cpuhw;
+
+ if (boot_cpu_data.x86_max_cores < 2)
+ return;
+
+ cpuhw = &per_cpu(cpu_hw_events, cpu);
+
+ raw_spin_lock(&amd_nb_lock);
+
+ if (--cpuhw->amd_nb->refcnt == 0)
+ kfree(cpuhw->amd_nb);
+
+ cpuhw->amd_nb = NULL;
+
+ raw_spin_unlock(&amd_nb_lock);
+}
+
+static __init int amd_pmu_init(void)
+{
+ /* Performance-monitoring supported from K7 and later: */
+ if (boot_cpu_data.x86 < 6)
+ return -ENODEV;
+
+ x86_pmu = amd_pmu;
+
+ /* Events are common for all AMDs */
+ memcpy(hw_cache_event_ids, amd_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+
+ /*
+ * explicitly initialize the boot cpu, other cpus will get
+ * the cpu hotplug callbacks from smp_init()
+ */
+ amd_pmu_cpu_online(smp_processor_id());
+ return 0;
+}
+
+#else /* CONFIG_CPU_SUP_AMD */
+
+static int amd_pmu_init(void)
+{
+ return 0;
+}
+
+static void amd_pmu_cpu_online(int cpu)
+{
+}
+
+static void amd_pmu_cpu_offline(int cpu)
+{
+}
+
+#endif
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
new file mode 100644
index 0000000..cf6590c
--- /dev/null
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -0,0 +1,971 @@
+#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(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0324, /* L2_RQSTS.LOADS */
+ [ C(RESULT_MISS) ] = 0x0224, /* L2_RQSTS.LD_MISS */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0c24, /* L2_RQSTS.RFOS */
+ [ C(RESULT_MISS) ] = 0x0824, /* L2_RQSTS.RFO_MISS */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x4f2e, /* LLC Reference */
+ [ C(RESULT_MISS) ] = 0x412e, /* LLC Misses */
+ },
+ },
+ [ 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,
+ },
+ },
+};
+
+static __initconst 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) ] = 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) ] = 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) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0324, /* L2_RQSTS.LOADS */
+ [ C(RESULT_MISS) ] = 0x0224, /* L2_RQSTS.LD_MISS */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0c24, /* L2_RQSTS.RFOS */
+ [ C(RESULT_MISS) ] = 0x0824, /* L2_RQSTS.RFO_MISS */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x4f2e, /* LLC Reference */
+ [ C(RESULT_MISS) ] = 0x412e, /* LLC Misses */
+ },
+ },
+ [ 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,
+ },
+ },
+};
+
+static __initconst 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 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 u64 intel_pmu_raw_event(u64 hw_event)
+{
+#define CORE_EVNTSEL_EVENT_MASK 0x000000FFULL
+#define CORE_EVNTSEL_UNIT_MASK 0x0000FF00ULL
+#define CORE_EVNTSEL_EDGE_MASK 0x00040000ULL
+#define CORE_EVNTSEL_INV_MASK 0x00800000ULL
+#define CORE_EVNTSEL_REG_MASK 0xFF000000ULL
+
+#define CORE_EVNTSEL_MASK \
+ (INTEL_ARCH_EVTSEL_MASK | \
+ INTEL_ARCH_UNIT_MASK | \
+ INTEL_ARCH_EDGE_MASK | \
+ INTEL_ARCH_INV_MASK | \
+ INTEL_ARCH_CNT_MASK)
+
+ return hw_event & CORE_EVNTSEL_MASK;
+}
+
+static void intel_pmu_enable_bts(u64 config)
+{
+ unsigned long debugctlmsr;
+
+ debugctlmsr = get_debugctlmsr();
+
+ debugctlmsr |= X86_DEBUGCTL_TR;
+ debugctlmsr |= X86_DEBUGCTL_BTS;
+ debugctlmsr |= X86_DEBUGCTL_BTINT;
+
+ if (!(config & ARCH_PERFMON_EVENTSEL_OS))
+ debugctlmsr |= X86_DEBUGCTL_BTS_OFF_OS;
+
+ if (!(config & ARCH_PERFMON_EVENTSEL_USR))
+ debugctlmsr |= X86_DEBUGCTL_BTS_OFF_USR;
+
+ update_debugctlmsr(debugctlmsr);
+}
+
+static void intel_pmu_disable_bts(void)
+{
+ struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+ unsigned long debugctlmsr;
+
+ if (!cpuc->ds)
+ return;
+
+ debugctlmsr = get_debugctlmsr();
+
+ debugctlmsr &=
+ ~(X86_DEBUGCTL_TR | X86_DEBUGCTL_BTS | X86_DEBUGCTL_BTINT |
+ X86_DEBUGCTL_BTS_OFF_OS | X86_DEBUGCTL_BTS_OFF_USR);
+
+ update_debugctlmsr(debugctlmsr);
+}
+
+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();
+}
+
+static void intel_pmu_enable_all(void)
+{
+ struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+
+ wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, x86_pmu.intel_ctrl);
+
+ 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);
+ }
+}
+
+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 inline void
+intel_pmu_disable_fixed(struct hw_perf_event *hwc, int __idx)
+{
+ int idx = __idx - X86_PMC_IDX_FIXED;
+ u64 ctrl_val, mask;
+
+ mask = 0xfULL << (idx * 4);
+
+ rdmsrl(hwc->config_base, ctrl_val);
+ ctrl_val &= ~mask;
+ (void)checking_wrmsrl(hwc->config_base, ctrl_val);
+}
+
+static void intel_pmu_drain_bts_buffer(void)
+{
+ struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+ struct debug_store *ds = cpuc->ds;
+ struct bts_record {
+ u64 from;
+ u64 to;
+ u64 flags;
+ };
+ struct perf_event *event = cpuc->events[X86_PMC_IDX_FIXED_BTS];
+ struct bts_record *at, *top;
+ struct perf_output_handle handle;
+ struct perf_event_header header;
+ struct perf_sample_data data;
+ struct pt_regs regs;
+
+ if (!event)
+ return;
+
+ if (!ds)
+ return;
+
+ at = (struct bts_record *)(unsigned long)ds->bts_buffer_base;
+ top = (struct bts_record *)(unsigned long)ds->bts_index;
+
+ if (top <= at)
+ return;
+
+ ds->bts_index = ds->bts_buffer_base;
+
+
+ data.period = event->hw.last_period;
+ data.addr = 0;
+ data.raw = NULL;
+ regs.ip = 0;
+
+ /*
+ * Prepare a generic sample, i.e. fill in the invariant fields.
+ * We will overwrite the from and to address before we output
+ * the sample.
+ */
+ perf_prepare_sample(&header, &data, event, ®s);
+
+ if (perf_output_begin(&handle, event,
+ header.size * (top - at), 1, 1))
+ return;
+
+ for (; at < top; at++) {
+ data.ip = at->from;
+ data.addr = at->to;
+
+ perf_output_sample(&handle, &header, &data, event);
+ }
+
+ perf_output_end(&handle);
+
+ /* There's new data available. */
+ event->hw.interrupts++;
+ event->pending_kill = POLL_IN;
+}
+
+static inline void
+intel_pmu_disable_event(struct hw_perf_event *hwc, int idx)
+{
+ if (unlikely(idx == X86_PMC_IDX_FIXED_BTS)) {
+ intel_pmu_disable_bts();
+ intel_pmu_drain_bts_buffer();
+ return;
+ }
+
+ if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) {
+ intel_pmu_disable_fixed(hwc, idx);
+ return;
+ }
+
+ x86_pmu_disable_event(hwc, idx);
+}
+
+static inline void
+intel_pmu_enable_fixed(struct hw_perf_event *hwc, int __idx)
+{
+ int idx = __idx - X86_PMC_IDX_FIXED;
+ u64 ctrl_val, bits, mask;
+ int err;
+
+ /*
+ * 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;
+ err = checking_wrmsrl(hwc->config_base, ctrl_val);
+}
+
+static void intel_pmu_enable_event(struct hw_perf_event *hwc, int idx)
+{
+ if (unlikely(idx == X86_PMC_IDX_FIXED_BTS)) {
+ if (!__get_cpu_var(cpu_hw_events).enabled)
+ return;
+
+ intel_pmu_enable_bts(hwc->config);
+ return;
+ }
+
+ if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) {
+ intel_pmu_enable_fixed(hwc, idx);
+ return;
+ }
+
+ __x86_pmu_enable_event(hwc, idx);
+}
+
+/*
+ * Save and restart an expired event. Called by NMI contexts,
+ * so it has to be careful about preempting normal event ops:
+ */
+static int intel_pmu_save_and_restart(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ int idx = hwc->idx;
+ int ret;
+
+ x86_perf_event_update(event, hwc, idx);
+ ret = x86_perf_event_set_period(event, hwc, idx);
+
+ return ret;
+}
+
+static void intel_pmu_reset(void)
+{
+ struct debug_store *ds = __get_cpu_var(cpu_hw_events).ds;
+ unsigned long flags;
+ int idx;
+
+ if (!x86_pmu.num_events)
+ return;
+
+ local_irq_save(flags);
+
+ printk("clearing PMU state on CPU#%d\n", smp_processor_id());
+
+ for (idx = 0; idx < x86_pmu.num_events; idx++) {
+ checking_wrmsrl(x86_pmu.eventsel + idx, 0ull);
+ checking_wrmsrl(x86_pmu.perfctr + idx, 0ull);
+ }
+ for (idx = 0; idx < x86_pmu.num_events_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 ack, status;
+
+ data.addr = 0;
+ data.raw = NULL;
+
+ cpuc = &__get_cpu_var(cpu_hw_events);
+
+ perf_disable();
+ intel_pmu_drain_bts_buffer();
+ status = intel_pmu_get_status();
+ if (!status) {
+ perf_enable();
+ return 0;
+ }
+
+ loops = 0;
+again:
+ if (++loops > 100) {
+ WARN_ONCE(1, "perfevents: irq loop stuck!\n");
+ perf_event_print_debug();
+ intel_pmu_reset();
+ perf_enable();
+ return 1;
+ }
+
+ inc_irq_stat(apic_perf_irqs);
+ ack = status;
+ for_each_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) {
+ struct perf_event *event = cpuc->events[bit];
+
+ clear_bit(bit, (unsigned long *) &status);
+ if (!test_bit(bit, cpuc->active_mask))
+ continue;
+
+ if (!intel_pmu_save_and_restart(event))
+ continue;
+
+ data.period = event->hw.last_period;
+
+ if (perf_event_overflow(event, 1, &data, regs))
+ intel_pmu_disable_event(&event->hw, bit);
+ }
+
+ intel_pmu_ack_status(ack);
+
+ /*
+ * Repeat if there is more work to be done:
+ */
+ status = intel_pmu_get_status();
+ if (status)
+ goto again;
+
+ perf_enable();
+
+ return 1;
+}
+
+static struct event_constraint bts_constraint =
+ EVENT_CONSTRAINT(0, 1ULL << X86_PMC_IDX_FIXED_BTS, 0);
+
+static struct event_constraint *
+intel_special_constraints(struct perf_event *event)
+{
+ unsigned int hw_event;
+
+ hw_event = event->hw.config & INTEL_ARCH_EVENT_MASK;
+
+ if (unlikely((hw_event ==
+ x86_pmu.event_map(PERF_COUNT_HW_BRANCH_INSTRUCTIONS)) &&
+ (event->hw.sample_period == 1))) {
+
+ return &bts_constraint;
+ }
+ return NULL;
+}
+
+static struct event_constraint *
+intel_get_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event)
+{
+ struct event_constraint *c;
+
+ c = intel_special_constraints(event);
+ if (c)
+ return c;
+
+ return x86_get_event_constraints(cpuc, event);
+}
+
+static __initconst struct x86_pmu core_pmu = {
+ .name = "core",
+ .handle_irq = x86_pmu_handle_irq,
+ .disable_all = x86_pmu_disable_all,
+ .enable_all = x86_pmu_enable_all,
+ .enable = x86_pmu_enable_event,
+ .disable = x86_pmu_disable_event,
+ .eventsel = MSR_ARCH_PERFMON_EVENTSEL0,
+ .perfctr = MSR_ARCH_PERFMON_PERFCTR0,
+ .event_map = intel_pmu_event_map,
+ .raw_event = intel_pmu_raw_event,
+ .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,
+ .event_constraints = intel_core_event_constraints,
+};
+
+static __initconst 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,
+ .eventsel = MSR_ARCH_PERFMON_EVENTSEL0,
+ .perfctr = MSR_ARCH_PERFMON_PERFCTR0,
+ .event_map = intel_pmu_event_map,
+ .raw_event = intel_pmu_raw_event,
+ .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,
+ .enable_bts = intel_pmu_enable_bts,
+ .disable_bts = intel_pmu_disable_bts,
+ .get_event_constraints = intel_get_event_constraints
+};
+
+static __init int intel_pmu_init(void)
+{
+ union cpuid10_edx edx;
+ union cpuid10_eax eax;
+ unsigned int unused;
+ unsigned int ebx;
+ int version;
+
+ if (!cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) {
+ /* check for P6 processor family */
+ if (boot_cpu_data.x86 == 6) {
+ return p6_pmu_init();
+ } else {
+ return -ENODEV;
+ }
+ }
+
+ /*
+ * Check whether the Architectural PerfMon supports
+ * Branch Misses Retired hw_event or not.
+ */
+ cpuid(10, &eax.full, &ebx, &unused, &edx.full);
+ if (eax.split.mask_length <= ARCH_PERFMON_BRANCH_MISSES_RETIRED)
+ 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_events = eax.split.num_events;
+ x86_pmu.event_bits = eax.split.bit_width;
+ x86_pmu.event_mask = (1ULL << eax.split.bit_width) - 1;
+
+ /*
+ * Quirk: v2 perfmon does not report fixed-purpose events, so
+ * assume at least 3 events:
+ */
+ if (version > 1)
+ x86_pmu.num_events_fixed = max((int)edx.split.num_events_fixed, 3);
+
+ /*
+ * 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" */
+ 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));
+
+ x86_pmu.event_constraints = intel_core2_event_constraints;
+ pr_cont("Core2 events, ");
+ break;
+
+ case 26: /* 45 nm nehalem, "Bloomfield" */
+ case 30: /* 45 nm nehalem, "Lynnfield" */
+ memcpy(hw_cache_event_ids, nehalem_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+
+ x86_pmu.event_constraints = intel_nehalem_event_constraints;
+ pr_cont("Nehalem/Corei7 events, ");
+ break;
+ case 28:
+ memcpy(hw_cache_event_ids, atom_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+
+ x86_pmu.event_constraints = intel_gen_event_constraints;
+ pr_cont("Atom events, ");
+ break;
+
+ case 37: /* 32 nm nehalem, "Clarkdale" */
+ case 44: /* 32 nm nehalem, "Gulftown" */
+ memcpy(hw_cache_event_ids, westmere_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+
+ x86_pmu.event_constraints = intel_westmere_event_constraints;
+ pr_cont("Westmere events, ");
+ break;
+ default:
+ /*
+ * default constraints for v2 and up
+ */
+ x86_pmu.event_constraints = intel_gen_event_constraints;
+ pr_cont("generic architected perfmon, ");
+ }
+ return 0;
+}
+
+#else /* CONFIG_CPU_SUP_INTEL */
+
+static int intel_pmu_init(void)
+{
+ return 0;
+}
+
+#endif /* CONFIG_CPU_SUP_INTEL */
diff --git a/arch/x86/kernel/cpu/perf_event_p6.c b/arch/x86/kernel/cpu/perf_event_p6.c
new file mode 100644
index 0000000..1ca5ba0
--- /dev/null
+++ b/arch/x86/kernel/cpu/perf_event_p6.c
@@ -0,0 +1,157 @@
+#ifdef CONFIG_CPU_SUP_INTEL
+
+/*
+ * Not sure about some of these
+ */
+static const u64 p6_perfmon_event_map[] =
+{
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x0079,
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e,
+ [PERF_COUNT_HW_CACHE_MISSES] = 0x012e,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4,
+ [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5,
+ [PERF_COUNT_HW_BUS_CYCLES] = 0x0062,
+};
+
+static u64 p6_pmu_event_map(int hw_event)
+{
+ return p6_perfmon_event_map[hw_event];
+}
+
+/*
+ * Event setting that is specified not to count anything.
+ * We use this to effectively disable a counter.
+ *
+ * L2_RQSTS with 0 MESI unit mask.
+ */
+#define P6_NOP_EVENT 0x0000002EULL
+
+static u64 p6_pmu_raw_event(u64 hw_event)
+{
+#define P6_EVNTSEL_EVENT_MASK 0x000000FFULL
+#define P6_EVNTSEL_UNIT_MASK 0x0000FF00ULL
+#define P6_EVNTSEL_EDGE_MASK 0x00040000ULL
+#define P6_EVNTSEL_INV_MASK 0x00800000ULL
+#define P6_EVNTSEL_REG_MASK 0xFF000000ULL
+
+#define P6_EVNTSEL_MASK \
+ (P6_EVNTSEL_EVENT_MASK | \
+ P6_EVNTSEL_UNIT_MASK | \
+ P6_EVNTSEL_EDGE_MASK | \
+ P6_EVNTSEL_INV_MASK | \
+ P6_EVNTSEL_REG_MASK)
+
+ return hw_event & P6_EVNTSEL_MASK;
+}
+
+static struct event_constraint p6_event_constraints[] =
+{
+ INTEL_EVENT_CONSTRAINT(0xc1, 0x1), /* FLOPS */
+ INTEL_EVENT_CONSTRAINT(0x10, 0x1), /* FP_COMP_OPS_EXE */
+ INTEL_EVENT_CONSTRAINT(0x11, 0x1), /* FP_ASSIST */
+ INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */
+ INTEL_EVENT_CONSTRAINT(0x13, 0x2), /* DIV */
+ INTEL_EVENT_CONSTRAINT(0x14, 0x1), /* CYCLES_DIV_BUSY */
+ EVENT_CONSTRAINT_END
+};
+
+static void p6_pmu_disable_all(void)
+{
+ u64 val;
+
+ /* p6 only has one enable register */
+ rdmsrl(MSR_P6_EVNTSEL0, val);
+ val &= ~ARCH_PERFMON_EVENTSEL0_ENABLE;
+ wrmsrl(MSR_P6_EVNTSEL0, val);
+}
+
+static void p6_pmu_enable_all(void)
+{
+ unsigned long val;
+
+ /* p6 only has one enable register */
+ rdmsrl(MSR_P6_EVNTSEL0, val);
+ val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
+ wrmsrl(MSR_P6_EVNTSEL0, val);
+}
+
+static inline void
+p6_pmu_disable_event(struct hw_perf_event *hwc, int idx)
+{
+ struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+ u64 val = P6_NOP_EVENT;
+
+ if (cpuc->enabled)
+ val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
+
+ (void)checking_wrmsrl(hwc->config_base + idx, val);
+}
+
+static void p6_pmu_enable_event(struct hw_perf_event *hwc, int idx)
+{
+ struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+ u64 val;
+
+ val = hwc->config;
+ if (cpuc->enabled)
+ val |= ARCH_PERFMON_EVENTSEL0_ENABLE;
+
+ (void)checking_wrmsrl(hwc->config_base + idx, val);
+}
+
+static __initconst struct x86_pmu p6_pmu = {
+ .name = "p6",
+ .handle_irq = x86_pmu_handle_irq,
+ .disable_all = p6_pmu_disable_all,
+ .enable_all = p6_pmu_enable_all,
+ .enable = p6_pmu_enable_event,
+ .disable = p6_pmu_disable_event,
+ .eventsel = MSR_P6_EVNTSEL0,
+ .perfctr = MSR_P6_PERFCTR0,
+ .event_map = p6_pmu_event_map,
+ .raw_event = p6_pmu_raw_event,
+ .max_events = ARRAY_SIZE(p6_perfmon_event_map),
+ .apic = 1,
+ .max_period = (1ULL << 31) - 1,
+ .version = 0,
+ .num_events = 2,
+ /*
+ * Events have 40 bits implemented. However they are designed such
+ * that bits [32-39] are sign extensions of bit 31. As such the
+ * effective width of a event for P6-like PMU is 32 bits only.
+ *
+ * See IA-32 Intel Architecture Software developer manual Vol 3B
+ */
+ .event_bits = 32,
+ .event_mask = (1ULL << 32) - 1,
+ .get_event_constraints = x86_get_event_constraints,
+ .event_constraints = p6_event_constraints,
+};
+
+static __init int p6_pmu_init(void)
+{
+ switch (boot_cpu_data.x86_model) {
+ case 1:
+ case 3: /* Pentium Pro */
+ case 5:
+ case 6: /* Pentium II */
+ case 7:
+ case 8:
+ case 11: /* Pentium III */
+ case 9:
+ case 13:
+ /* Pentium M */
+ break;
+ default:
+ pr_cont("unsupported p6 CPU model %d ",
+ boot_cpu_data.x86_model);
+ return -ENODEV;
+ }
+
+ x86_pmu = p6_pmu;
+
+ return 0;
+}
+
+#endif /* CONFIG_CPU_SUP_INTEL */
--
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