Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 1 | #ifndef _PERF_PERF_H |
| 2 | #define _PERF_PERF_H |
| 3 | |
Peter Zijlstra | 1a482f3 | 2009-05-23 18:28:58 +0200 | [diff] [blame] | 4 | #if defined(__x86_64__) || defined(__i386__) |
| 5 | #include "../../arch/x86/include/asm/unistd.h" |
| 6 | #define rmb() asm volatile("lfence" ::: "memory") |
| 7 | #define cpu_relax() asm volatile("rep; nop" ::: "memory"); |
| 8 | #endif |
| 9 | |
| 10 | #ifdef __powerpc__ |
| 11 | #include "../../arch/powerpc/include/asm/unistd.h" |
| 12 | #define rmb() asm volatile ("sync" ::: "memory") |
| 13 | #define cpu_relax() asm volatile ("" ::: "memory"); |
| 14 | #endif |
| 15 | |
| 16 | #include <time.h> |
| 17 | #include <unistd.h> |
| 18 | #include <sys/types.h> |
| 19 | #include <sys/syscall.h> |
| 20 | |
| 21 | #include "../../include/linux/perf_counter.h" |
Peter Zijlstra | 7c6a1c6 | 2009-06-25 17:05:54 +0200 | [diff] [blame^] | 22 | #include "util/types.h" |
Peter Zijlstra | 1a482f3 | 2009-05-23 18:28:58 +0200 | [diff] [blame] | 23 | |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 24 | /* |
| 25 | * prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all |
| 26 | * counters in the current task. |
| 27 | */ |
| 28 | #define PR_TASK_PERF_COUNTERS_DISABLE 31 |
| 29 | #define PR_TASK_PERF_COUNTERS_ENABLE 32 |
| 30 | |
Thomas Gleixner | a92e70237 | 2009-05-01 18:39:47 +0200 | [diff] [blame] | 31 | #ifndef NSEC_PER_SEC |
| 32 | # define NSEC_PER_SEC 1000000000ULL |
| 33 | #endif |
| 34 | |
| 35 | static inline unsigned long long rdclock(void) |
| 36 | { |
| 37 | struct timespec ts; |
| 38 | |
| 39 | clock_gettime(CLOCK_MONOTONIC, &ts); |
| 40 | return ts.tv_sec * 1000000000ULL + ts.tv_nsec; |
| 41 | } |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 42 | |
| 43 | /* |
| 44 | * Pick up some kernel type conventions: |
| 45 | */ |
| 46 | #define __user |
| 47 | #define asmlinkage |
| 48 | |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 49 | #define unlikely(x) __builtin_expect(!!(x), 0) |
| 50 | #define min(x, y) ({ \ |
| 51 | typeof(x) _min1 = (x); \ |
| 52 | typeof(y) _min2 = (y); \ |
| 53 | (void) (&_min1 == &_min2); \ |
| 54 | _min1 < _min2 ? _min1 : _min2; }) |
| 55 | |
| 56 | static inline int |
Peter Zijlstra | 974802e | 2009-06-12 12:46:55 +0200 | [diff] [blame] | 57 | sys_perf_counter_open(struct perf_counter_attr *attr, |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 58 | pid_t pid, int cpu, int group_fd, |
| 59 | unsigned long flags) |
| 60 | { |
Peter Zijlstra | 974802e | 2009-06-12 12:46:55 +0200 | [diff] [blame] | 61 | attr->size = sizeof(*attr); |
| 62 | return syscall(__NR_perf_counter_open, attr, pid, cpu, |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 63 | group_fd, flags); |
| 64 | } |
| 65 | |
Ingo Molnar | 85a9f92 | 2009-05-25 09:59:50 +0200 | [diff] [blame] | 66 | #define MAX_COUNTERS 256 |
| 67 | #define MAX_NR_CPUS 256 |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 68 | |
Thomas Gleixner | 6eda583 | 2009-05-01 18:29:57 +0200 | [diff] [blame] | 69 | #endif |