1 #ifndef _PERF_PERF_H 2 #define _PERF_PERF_H 3 4 #if defined(__i386__) 5 #include "../../arch/x86/include/asm/unistd.h" 6 #define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory") 7 #define cpu_relax() asm volatile("rep; nop" ::: "memory"); 8 #endif 9 10 #if defined(__x86_64__) 11 #include "../../arch/x86/include/asm/unistd.h" 12 #define rmb() asm volatile("lfence" ::: "memory") 13 #define cpu_relax() asm volatile("rep; nop" ::: "memory"); 14 #endif 15 16 #ifdef __powerpc__ 17 #include "../../arch/powerpc/include/asm/unistd.h" 18 #define rmb() asm volatile ("sync" ::: "memory") 19 #define cpu_relax() asm volatile ("" ::: "memory"); 20 #endif 21 22 #ifdef __s390__ 23 #include "../../arch/s390/include/asm/unistd.h" 24 #define rmb() asm volatile("bcr 15,0" ::: "memory") 25 #define cpu_relax() asm volatile("" ::: "memory"); 26 #endif 27 28 #ifdef __sh__ 29 #include "../../arch/sh/include/asm/unistd.h" 30 #if defined(__SH4A__) || defined(__SH5__) 31 # define rmb() asm volatile("synco" ::: "memory") 32 #else 33 # define rmb() asm volatile("" ::: "memory") 34 #endif 35 #define cpu_relax() asm volatile("" ::: "memory") 36 #endif 37 38 #ifdef __hppa__ 39 #include "../../arch/parisc/include/asm/unistd.h" 40 #define rmb() asm volatile("" ::: "memory") 41 #define cpu_relax() asm volatile("" ::: "memory"); 42 #endif 43 44 #ifdef __sparc__ 45 #include "../../arch/sparc/include/asm/unistd.h" 46 #define rmb() asm volatile("":::"memory") 47 #define cpu_relax() asm volatile("":::"memory") 48 #endif 49 50 #include <time.h> 51 #include <unistd.h> 52 #include <sys/types.h> 53 #include <sys/syscall.h> 54 55 #include "../../include/linux/perf_event.h" 56 #include "util/types.h" 57 58 /* 59 * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all 60 * counters in the current task. 61 */ 62 #define PR_TASK_PERF_EVENTS_DISABLE 31 63 #define PR_TASK_PERF_EVENTS_ENABLE 32 64 65 #ifndef NSEC_PER_SEC 66 # define NSEC_PER_SEC 1000000000ULL 67 #endif 68 69 static inline unsigned long long rdclock(void) 70 { 71 struct timespec ts; 72 73 clock_gettime(CLOCK_MONOTONIC, &ts); 74 return ts.tv_sec * 1000000000ULL + ts.tv_nsec; 75 } 76 77 /* 78 * Pick up some kernel type conventions: 79 */ 80 #define __user 81 #define asmlinkage 82 83 #define __used __attribute__((__unused__)) 84 85 #define unlikely(x) __builtin_expect(!!(x), 0) 86 #define min(x, y) ({ \ 87 typeof(x) _min1 = (x); \ 88 typeof(y) _min2 = (y); \ 89 (void) (&_min1 == &_min2); \ 90 _min1 < _min2 ? _min1 : _min2; }) 91 92 static inline int 93 sys_perf_event_open(struct perf_event_attr *attr, 94 pid_t pid, int cpu, int group_fd, 95 unsigned long flags) 96 { 97 attr->size = sizeof(*attr); 98 return syscall(__NR_perf_event_open, attr, pid, cpu, 99 group_fd, flags); 100 } 101 102 #define MAX_COUNTERS 256 103 #define MAX_NR_CPUS 256 104 105 struct ip_callchain { 106 u64 nr; 107 u64 ips[0]; 108 }; 109 110 #endif 111