Daniel Mentz | 94787a1 | 2013-05-29 21:12:04 -0700 | [diff] [blame] | 1 | #ifndef _PERF_PERF_H |
| 2 | #define _PERF_PERF_H |
| 3 | |
| 4 | struct winsize; |
| 5 | |
| 6 | void get_term_dimensions(struct winsize *ws); |
| 7 | |
| 8 | #if defined(__i386__) |
| 9 | #include "../../arch/x86/include/asm/unistd.h" |
| 10 | #define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory") |
| 11 | #define cpu_relax() asm volatile("rep; nop" ::: "memory"); |
| 12 | #define CPUINFO_PROC "model name" |
| 13 | #endif |
| 14 | |
| 15 | #if defined(__x86_64__) |
| 16 | #include "../../arch/x86/include/asm/unistd.h" |
| 17 | #define rmb() asm volatile("lfence" ::: "memory") |
| 18 | #define cpu_relax() asm volatile("rep; nop" ::: "memory"); |
| 19 | #define CPUINFO_PROC "model name" |
| 20 | #endif |
| 21 | |
| 22 | #ifdef __powerpc__ |
| 23 | #include "../../arch/powerpc/include/asm/unistd.h" |
| 24 | #define rmb() asm volatile ("sync" ::: "memory") |
| 25 | #define cpu_relax() asm volatile ("" ::: "memory"); |
| 26 | #define CPUINFO_PROC "cpu" |
| 27 | #endif |
| 28 | |
| 29 | #ifdef __s390__ |
| 30 | #include "../../arch/s390/include/asm/unistd.h" |
| 31 | #define rmb() asm volatile("bcr 15,0" ::: "memory") |
| 32 | #define cpu_relax() asm volatile("" ::: "memory"); |
| 33 | #endif |
| 34 | |
| 35 | #ifdef __sh__ |
| 36 | #include "../../arch/sh/include/asm/unistd.h" |
| 37 | #if defined(__SH4A__) || defined(__SH5__) |
| 38 | # define rmb() asm volatile("synco" ::: "memory") |
| 39 | #else |
| 40 | # define rmb() asm volatile("" ::: "memory") |
| 41 | #endif |
| 42 | #define cpu_relax() asm volatile("" ::: "memory") |
| 43 | #define CPUINFO_PROC "cpu type" |
| 44 | #endif |
| 45 | |
| 46 | #ifdef __hppa__ |
| 47 | #include "../../arch/parisc/include/asm/unistd.h" |
| 48 | #define rmb() asm volatile("" ::: "memory") |
| 49 | #define cpu_relax() asm volatile("" ::: "memory"); |
| 50 | #define CPUINFO_PROC "cpu" |
| 51 | #endif |
| 52 | |
| 53 | #ifdef __sparc__ |
| 54 | #include "../../arch/sparc/include/asm/unistd.h" |
| 55 | #define rmb() asm volatile("":::"memory") |
| 56 | #define cpu_relax() asm volatile("":::"memory") |
| 57 | #define CPUINFO_PROC "cpu" |
| 58 | #endif |
| 59 | |
| 60 | #ifdef __alpha__ |
| 61 | #include "../../arch/alpha/include/asm/unistd.h" |
| 62 | #define rmb() asm volatile("mb" ::: "memory") |
| 63 | #define cpu_relax() asm volatile("" ::: "memory") |
| 64 | #define CPUINFO_PROC "cpu model" |
| 65 | #endif |
| 66 | |
| 67 | #ifdef __ia64__ |
| 68 | #include "../../arch/ia64/include/asm/unistd.h" |
| 69 | #define rmb() asm volatile ("mf" ::: "memory") |
| 70 | #define cpu_relax() asm volatile ("hint @pause" ::: "memory") |
| 71 | #define CPUINFO_PROC "model name" |
| 72 | #endif |
| 73 | |
| 74 | #ifdef __arm__ |
| 75 | #include "../../arch/arm/include/asm/unistd.h" |
| 76 | /* |
| 77 | * Use the __kuser_memory_barrier helper in the CPU helper page. See |
| 78 | * arch/arm/kernel/entry-armv.S in the kernel source for details. |
| 79 | */ |
| 80 | #define rmb() ((void(*)(void))0xffff0fa0)() |
| 81 | #define cpu_relax() asm volatile("":::"memory") |
| 82 | #define CPUINFO_PROC "Processor" |
| 83 | #endif |
| 84 | |
| 85 | #ifdef __mips__ |
| 86 | #include "../../arch/mips/include/asm/unistd.h" |
| 87 | #define rmb() asm volatile( \ |
| 88 | ".set mips2\n\t" \ |
| 89 | "sync\n\t" \ |
| 90 | ".set mips0" \ |
| 91 | : /* no output */ \ |
| 92 | : /* no input */ \ |
| 93 | : "memory") |
| 94 | #define cpu_relax() asm volatile("" ::: "memory") |
| 95 | #define CPUINFO_PROC "cpu model" |
| 96 | #endif |
| 97 | |
| 98 | #include <time.h> |
| 99 | #include <unistd.h> |
| 100 | #include <sys/types.h> |
| 101 | #include <sys/syscall.h> |
| 102 | |
| 103 | #include "../../include/linux/perf_event.h" |
| 104 | #include "util/types.h" |
| 105 | #include <stdbool.h> |
| 106 | |
| 107 | struct perf_mmap { |
| 108 | void *base; |
| 109 | int mask; |
| 110 | unsigned int prev; |
| 111 | }; |
| 112 | |
| 113 | static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm) |
| 114 | { |
| 115 | struct perf_event_mmap_page *pc = mm->base; |
| 116 | int head = pc->data_head; |
| 117 | rmb(); |
| 118 | return head; |
| 119 | } |
| 120 | |
| 121 | static inline void perf_mmap__write_tail(struct perf_mmap *md, |
| 122 | unsigned long tail) |
| 123 | { |
| 124 | struct perf_event_mmap_page *pc = md->base; |
| 125 | |
| 126 | /* |
| 127 | * ensure all reads are done before we write the tail out. |
| 128 | */ |
| 129 | /* mb(); */ |
| 130 | pc->data_tail = tail; |
| 131 | } |
| 132 | |
| 133 | /* |
| 134 | * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all |
| 135 | * counters in the current task. |
| 136 | */ |
| 137 | #define PR_TASK_PERF_EVENTS_DISABLE 31 |
| 138 | #define PR_TASK_PERF_EVENTS_ENABLE 32 |
| 139 | |
| 140 | #ifndef NSEC_PER_SEC |
| 141 | # define NSEC_PER_SEC 1000000000ULL |
| 142 | #endif |
| 143 | |
| 144 | static inline unsigned long long rdclock(void) |
| 145 | { |
| 146 | struct timespec ts; |
| 147 | |
| 148 | clock_gettime(CLOCK_MONOTONIC, &ts); |
| 149 | return ts.tv_sec * 1000000000ULL + ts.tv_nsec; |
| 150 | } |
| 151 | |
| 152 | /* |
| 153 | * Pick up some kernel type conventions: |
| 154 | */ |
| 155 | #define __user |
| 156 | #define asmlinkage |
| 157 | |
| 158 | #define unlikely(x) __builtin_expect(!!(x), 0) |
| 159 | #define min(x, y) ({ \ |
| 160 | typeof(x) _min1 = (x); \ |
| 161 | typeof(y) _min2 = (y); \ |
| 162 | (void) (&_min1 == &_min2); \ |
| 163 | _min1 < _min2 ? _min1 : _min2; }) |
| 164 | |
| 165 | static inline int |
| 166 | sys_perf_event_open(struct perf_event_attr *attr, |
| 167 | pid_t pid, int cpu, int group_fd, |
| 168 | unsigned long flags) |
| 169 | { |
| 170 | attr->size = sizeof(*attr); |
| 171 | return syscall(__NR_perf_event_open, attr, pid, cpu, |
| 172 | group_fd, flags); |
| 173 | } |
| 174 | |
| 175 | #define MAX_COUNTERS 256 |
| 176 | #define MAX_NR_CPUS 256 |
| 177 | |
| 178 | struct ip_callchain { |
| 179 | u64 nr; |
| 180 | u64 ips[0]; |
| 181 | }; |
| 182 | |
| 183 | extern bool perf_host, perf_guest; |
| 184 | extern const char perf_version_string[]; |
| 185 | |
| 186 | void pthread__unblock_sigwinch(void); |
| 187 | |
| 188 | #endif |