1#ifndef _ASM_X86_PERF_EVENT_H 2#define _ASM_X86_PERF_EVENT_H 3 4/* 5 * Performance event hw details: 6 */ 7 8#define X86_PMC_MAX_GENERIC 32 9#define X86_PMC_MAX_FIXED 3 10 11#define X86_PMC_IDX_GENERIC 0 12#define X86_PMC_IDX_FIXED 32 13#define X86_PMC_IDX_MAX 64 14 15#define MSR_ARCH_PERFMON_PERFCTR0 0xc1 16#define MSR_ARCH_PERFMON_PERFCTR1 0xc2 17 18#define MSR_ARCH_PERFMON_EVENTSEL0 0x186 19#define MSR_ARCH_PERFMON_EVENTSEL1 0x187 20 21#define ARCH_PERFMON_EVENTSEL_EVENT 0x000000FFULL 22#define ARCH_PERFMON_EVENTSEL_UMASK 0x0000FF00ULL 23#define ARCH_PERFMON_EVENTSEL_USR (1ULL << 16) 24#define ARCH_PERFMON_EVENTSEL_OS (1ULL << 17) 25#define ARCH_PERFMON_EVENTSEL_EDGE (1ULL << 18) 26#define ARCH_PERFMON_EVENTSEL_INT (1ULL << 20) 27#define ARCH_PERFMON_EVENTSEL_ANY (1ULL << 21) 28#define ARCH_PERFMON_EVENTSEL_ENABLE (1ULL << 22) 29#define ARCH_PERFMON_EVENTSEL_INV (1ULL << 23) 30#define ARCH_PERFMON_EVENTSEL_CMASK 0xFF000000ULL 31 32#define AMD64_EVENTSEL_EVENT \ 33 (ARCH_PERFMON_EVENTSEL_EVENT | (0x0FULL << 32)) 34#define INTEL_ARCH_EVENT_MASK \ 35 (ARCH_PERFMON_EVENTSEL_UMASK | ARCH_PERFMON_EVENTSEL_EVENT) 36 37#define X86_RAW_EVENT_MASK \ 38 (ARCH_PERFMON_EVENTSEL_EVENT | \ 39 ARCH_PERFMON_EVENTSEL_UMASK | \ 40 ARCH_PERFMON_EVENTSEL_EDGE | \ 41 ARCH_PERFMON_EVENTSEL_INV | \ 42 ARCH_PERFMON_EVENTSEL_CMASK) 43#define AMD64_RAW_EVENT_MASK \ 44 (X86_RAW_EVENT_MASK | \ 45 AMD64_EVENTSEL_EVENT) 46 47#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL 0x3c 48#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8) 49#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX 0 50#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT \ 51 (1 << (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX)) 52 53#define ARCH_PERFMON_BRANCH_MISSES_RETIRED 6 54 55/* 56 * Intel "Architectural Performance Monitoring" CPUID 57 * detection/enumeration details: 58 */ 59union cpuid10_eax { 60 struct { 61 unsigned int version_id:8; 62 unsigned int num_counters:8; 63 unsigned int bit_width:8; 64 unsigned int mask_length:8; 65 } split; 66 unsigned int full; 67}; 68 69union cpuid10_edx { 70 struct { 71 unsigned int num_counters_fixed:5; 72 unsigned int bit_width_fixed:8; 73 unsigned int reserved:19; 74 } split; 75 unsigned int full; 76}; 77 78 79/* 80 * Fixed-purpose performance events: 81 */ 82 83/* 84 * All 3 fixed-mode PMCs are configured via this single MSR: 85 */ 86#define MSR_ARCH_PERFMON_FIXED_CTR_CTRL 0x38d 87 88/* 89 * The counts are available in three separate MSRs: 90 */ 91 92/* Instr_Retired.Any: */ 93#define MSR_ARCH_PERFMON_FIXED_CTR0 0x309 94#define X86_PMC_IDX_FIXED_INSTRUCTIONS (X86_PMC_IDX_FIXED + 0) 95 96/* CPU_CLK_Unhalted.Core: */ 97#define MSR_ARCH_PERFMON_FIXED_CTR1 0x30a 98#define X86_PMC_IDX_FIXED_CPU_CYCLES (X86_PMC_IDX_FIXED + 1) 99 100/* CPU_CLK_Unhalted.Ref: */ 101#define MSR_ARCH_PERFMON_FIXED_CTR2 0x30b 102#define X86_PMC_IDX_FIXED_BUS_CYCLES (X86_PMC_IDX_FIXED + 2) 103 104/* 105 * We model BTS tracing as another fixed-mode PMC. 106 * 107 * We choose a value in the middle of the fixed event range, since lower 108 * values are used by actual fixed events and higher values are used 109 * to indicate other overflow conditions in the PERF_GLOBAL_STATUS msr. 110 */ 111#define X86_PMC_IDX_FIXED_BTS (X86_PMC_IDX_FIXED + 16) 112 113/* IbsFetchCtl bits/masks */ 114#define IBS_FETCH_RAND_EN (1ULL<<57) 115#define IBS_FETCH_VAL (1ULL<<49) 116#define IBS_FETCH_ENABLE (1ULL<<48) 117#define IBS_FETCH_CNT 0xFFFF0000ULL 118#define IBS_FETCH_MAX_CNT 0x0000FFFFULL 119 120/* IbsOpCtl bits */ 121#define IBS_OP_CNT_CTL (1ULL<<19) 122#define IBS_OP_VAL (1ULL<<18) 123#define IBS_OP_ENABLE (1ULL<<17) 124#define IBS_OP_MAX_CNT 0x0000FFFFULL 125 126#ifdef CONFIG_PERF_EVENTS 127extern void init_hw_perf_events(void); 128extern void perf_events_lapic_init(void); 129 130#define PERF_EVENT_INDEX_OFFSET 0 131 132/* 133 * Abuse bit 3 of the cpu eflags register to indicate proper PEBS IP fixups. 134 * This flag is otherwise unused and ABI specified to be 0, so nobody should 135 * care what we do with it. 136 */ 137#define PERF_EFLAGS_EXACT (1UL << 3) 138 139struct pt_regs; 140extern unsigned long perf_instruction_pointer(struct pt_regs *regs); 141extern unsigned long perf_misc_flags(struct pt_regs *regs); 142#define perf_misc_flags(regs) perf_misc_flags(regs) 143 144#include <asm/stacktrace.h> 145 146/* 147 * We abuse bit 3 from flags to pass exact information, see perf_misc_flags 148 * and the comment with PERF_EFLAGS_EXACT. 149 */ 150#define perf_arch_fetch_caller_regs(regs, __ip) { \ 151 (regs)->ip = (__ip); \ 152 (regs)->bp = caller_frame_pointer(); \ 153 (regs)->cs = __KERNEL_CS; \ 154 regs->flags = 0; \ 155} 156 157#else 158static inline void init_hw_perf_events(void) { } 159static inline void perf_events_lapic_init(void) { } 160#endif 161 162#endif /* _ASM_X86_PERF_EVENT_H */ 163