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 #endif 13 14 #if defined(__x86_64__) 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 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 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 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 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 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 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 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 */ 72 #define rmb() ((void(*)(void))0xffff0fa0)() 73 #define cpu_relax() asm volatile("":::"memory") 74 #endif 75 76 #include <time.h> 77 #include <unistd.h> 78 #include <sys/types.h> 79 #include <sys/syscall.h> 80 81 #include "../../include/linux/perf_event.h" 82 #include "util/types.h" 83 84 /* 85 * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all 86 * counters in the current task. 87 */ 88 #define PR_TASK_PERF_EVENTS_DISABLE 31 89 #define PR_TASK_PERF_EVENTS_ENABLE 32 90 91 #ifndef NSEC_PER_SEC 92 # define NSEC_PER_SEC 1000000000ULL 93 #endif 94 95 static inline unsigned long long rdclock(void) 96 { 97 struct timespec ts; 98 99 clock_gettime(CLOCK_MONOTONIC, &ts); 100 return ts.tv_sec * 1000000000ULL + ts.tv_nsec; 101 } 102 103 /* 104 * Pick up some kernel type conventions: 105 */ 106 #define __user 107 #define asmlinkage 108 109 #define unlikely(x) __builtin_expect(!!(x), 0) 110 #define min(x, y) ({ \ 111 typeof(x) _min1 = (x); \ 112 typeof(y) _min2 = (y); \ 113 (void) (&_min1 == &_min2); \ 114 _min1 < _min2 ? _min1 : _min2; }) 115 116 static inline int 117 sys_perf_event_open(struct perf_event_attr *attr, 118 pid_t pid, int cpu, int group_fd, 119 unsigned long flags) 120 { 121 attr->size = sizeof(*attr); 122 return syscall(__NR_perf_event_open, attr, pid, cpu, 123 group_fd, flags); 124 } 125 126 #define MAX_COUNTERS 256 127 #define MAX_NR_CPUS 256 128 129 struct ip_callchain { 130 u64 nr; 131 u64 ips[0]; 132 }; 133 134 extern int perf_host, perf_guest; 135 136 #endif 137