Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 1 | #ifndef _PERF_PERF_H |
| 2 | #define _PERF_PERF_H |
| 3 | |
Arnaldo Carvalho de Melo | 895f0ed | 2010-03-11 20:12:41 -0300 | [diff] [blame] | 4 | struct winsize; |
| 5 | |
| 6 | void get_term_dimensions(struct winsize *ws); |
| 7 | |
Vince Weaver | 11d1578 | 2009-07-08 17:46:14 -0400 | [diff] [blame] | 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 | #endif |
| 13 | |
| 14 | #if defined(__x86_64__) |
Peter Zijlstra | 1a482f3 | 2009-05-23 18:28:58 +0200 | [diff] [blame] | 15 | #include "../../arch/x86/include/asm/unistd.h" |
| 16 | #define rmb() asm volatile("lfence" ::: "memory") |
| 17 | #define cpu_relax() asm volatile("rep; nop" ::: "memory"); |
| 18 | #endif |
| 19 | |
| 20 | #ifdef __powerpc__ |
| 21 | #include "../../arch/powerpc/include/asm/unistd.h" |
| 22 | #define rmb() asm volatile ("sync" ::: "memory") |
| 23 | #define cpu_relax() asm volatile ("" ::: "memory"); |
| 24 | #endif |
| 25 | |
Martin Schwidefsky | 12310e9 | 2009-06-22 12:08:22 +0200 | [diff] [blame] | 26 | #ifdef __s390__ |
| 27 | #include "../../arch/s390/include/asm/unistd.h" |
| 28 | #define rmb() asm volatile("bcr 15,0" ::: "memory") |
| 29 | #define cpu_relax() asm volatile("" ::: "memory"); |
| 30 | #endif |
| 31 | |
Paul Mundt | febe834 | 2009-06-25 14:41:57 +0900 | [diff] [blame] | 32 | #ifdef __sh__ |
| 33 | #include "../../arch/sh/include/asm/unistd.h" |
| 34 | #if defined(__SH4A__) || defined(__SH5__) |
| 35 | # define rmb() asm volatile("synco" ::: "memory") |
| 36 | #else |
| 37 | # define rmb() asm volatile("" ::: "memory") |
| 38 | #endif |
| 39 | #define cpu_relax() asm volatile("" ::: "memory") |
| 40 | #endif |
| 41 | |
Kyle McMartin | 2d4618d | 2009-06-23 21:38:49 -0400 | [diff] [blame] | 42 | #ifdef __hppa__ |
| 43 | #include "../../arch/parisc/include/asm/unistd.h" |
| 44 | #define rmb() asm volatile("" ::: "memory") |
| 45 | #define cpu_relax() asm volatile("" ::: "memory"); |
| 46 | #endif |
| 47 | |
Jens Axboe | 825c9fb | 2009-09-04 02:56:22 -0700 | [diff] [blame] | 48 | #ifdef __sparc__ |
| 49 | #include "../../arch/sparc/include/asm/unistd.h" |
| 50 | #define rmb() asm volatile("":::"memory") |
| 51 | #define cpu_relax() asm volatile("":::"memory") |
| 52 | #endif |
| 53 | |
Michael Cree | fcd14b3 | 2009-10-26 21:32:06 +1300 | [diff] [blame] | 54 | #ifdef __alpha__ |
| 55 | #include "../../arch/alpha/include/asm/unistd.h" |
| 56 | #define rmb() asm volatile("mb" ::: "memory") |
| 57 | #define cpu_relax() asm volatile("" ::: "memory") |
| 58 | #endif |
| 59 | |
Luck, Tony | 11ada26 | 2009-11-17 09:05:56 -0800 | [diff] [blame] | 60 | #ifdef __ia64__ |
| 61 | #include "../../arch/ia64/include/asm/unistd.h" |
| 62 | #define rmb() asm volatile ("mf" ::: "memory") |
| 63 | #define cpu_relax() asm volatile ("hint @pause" ::: "memory") |
| 64 | #endif |
| 65 | |
Jamie Iles | 58e9f94 | 2009-12-11 12:20:09 +0000 | [diff] [blame] | 66 | #ifdef __arm__ |
| 67 | #include "../../arch/arm/include/asm/unistd.h" |
| 68 | /* |
| 69 | * Use the __kuser_memory_barrier helper in the CPU helper page. See |
| 70 | * arch/arm/kernel/entry-armv.S in the kernel source for details. |
| 71 | */ |
Will Deacon | da7196e | 2010-03-03 11:47:58 +0000 | [diff] [blame] | 72 | #define rmb() ((void(*)(void))0xffff0fa0)() |
Jamie Iles | 58e9f94 | 2009-12-11 12:20:09 +0000 | [diff] [blame] | 73 | #define cpu_relax() asm volatile("":::"memory") |
| 74 | #endif |
| 75 | |
Deng-Cheng Zhu | c1e028e | 2010-10-12 19:33:33 +0800 | [diff] [blame^] | 76 | #ifdef __mips__ |
| 77 | #include "../../arch/mips/include/asm/unistd.h" |
| 78 | #define rmb() asm volatile( \ |
| 79 | ".set mips2\n\t" \ |
| 80 | "sync\n\t" \ |
| 81 | ".set mips0" \ |
| 82 | : /* no output */ \ |
| 83 | : /* no input */ \ |
| 84 | : "memory") |
| 85 | #define cpu_relax() asm volatile("" ::: "memory") |
| 86 | #endif |
| 87 | |
Peter Zijlstra | 1a482f3 | 2009-05-23 18:28:58 +0200 | [diff] [blame] | 88 | #include <time.h> |
| 89 | #include <unistd.h> |
| 90 | #include <sys/types.h> |
| 91 | #include <sys/syscall.h> |
| 92 | |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 93 | #include "../../include/linux/perf_event.h" |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame] | 94 | #include "util/types.h" |
Arnaldo Carvalho de Melo | 8035458 | 2010-05-17 15:51:10 -0300 | [diff] [blame] | 95 | #include <stdbool.h> |
Peter Zijlstra | 1a482f3 | 2009-05-23 18:28:58 +0200 | [diff] [blame] | 96 | |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 97 | /* |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 98 | * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 99 | * counters in the current task. |
| 100 | */ |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 101 | #define PR_TASK_PERF_EVENTS_DISABLE 31 |
| 102 | #define PR_TASK_PERF_EVENTS_ENABLE 32 |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 103 | |
Thomas Gleixner | a92e70237 | 2009-05-01 18:39:47 +0200 | [diff] [blame] | 104 | #ifndef NSEC_PER_SEC |
| 105 | # define NSEC_PER_SEC 1000000000ULL |
| 106 | #endif |
| 107 | |
| 108 | static inline unsigned long long rdclock(void) |
| 109 | { |
| 110 | struct timespec ts; |
| 111 | |
| 112 | clock_gettime(CLOCK_MONOTONIC, &ts); |
| 113 | return ts.tv_sec * 1000000000ULL + ts.tv_nsec; |
| 114 | } |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 115 | |
| 116 | /* |
| 117 | * Pick up some kernel type conventions: |
| 118 | */ |
| 119 | #define __user |
| 120 | #define asmlinkage |
| 121 | |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 122 | #define unlikely(x) __builtin_expect(!!(x), 0) |
| 123 | #define min(x, y) ({ \ |
| 124 | typeof(x) _min1 = (x); \ |
| 125 | typeof(y) _min2 = (y); \ |
| 126 | (void) (&_min1 == &_min2); \ |
| 127 | _min1 < _min2 ? _min1 : _min2; }) |
| 128 | |
| 129 | static inline int |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 130 | sys_perf_event_open(struct perf_event_attr *attr, |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 131 | pid_t pid, int cpu, int group_fd, |
| 132 | unsigned long flags) |
| 133 | { |
Peter Zijlstra | 974802e | 2009-06-12 12:46:55 +0200 | [diff] [blame] | 134 | attr->size = sizeof(*attr); |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 135 | return syscall(__NR_perf_event_open, attr, pid, cpu, |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 136 | group_fd, flags); |
| 137 | } |
| 138 | |
Ingo Molnar | 85a9f92 | 2009-05-25 09:59:50 +0200 | [diff] [blame] | 139 | #define MAX_COUNTERS 256 |
| 140 | #define MAX_NR_CPUS 256 |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 141 | |
Frederic Weisbecker | 8cb76d9 | 2009-06-26 16:28:00 +0200 | [diff] [blame] | 142 | struct ip_callchain { |
| 143 | u64 nr; |
| 144 | u64 ips[0]; |
Peter Zijlstra | f597055 | 2009-06-18 23:22:55 +0200 | [diff] [blame] | 145 | }; |
| 146 | |
Arnaldo Carvalho de Melo | 8035458 | 2010-05-17 15:51:10 -0300 | [diff] [blame] | 147 | extern bool perf_host, perf_guest; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 148 | |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 149 | #endif |