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 /* ANDROID_CHANGE_BEGIN */ 10 #if 0 11 #include "../../arch/x86/include/asm/unistd.h" 12 #elif !defined(__APPLE__) 13 #include <asm/unistd.h> 14 #endif 15 /* ANDROID_CHANGE_END */ 16 #define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory") 17 #define cpu_relax() asm volatile("rep; nop" ::: "memory"); 18 #endif 19 20 #if defined(__x86_64__) 21 #include "../../arch/x86/include/asm/unistd.h" 22 #define rmb() asm volatile("lfence" ::: "memory") 23 #define cpu_relax() asm volatile("rep; nop" ::: "memory"); 24 #endif 25 26 #ifdef __powerpc__ 27 #include "../../arch/powerpc/include/asm/unistd.h" 28 #define rmb() asm volatile ("sync" ::: "memory") 29 #define cpu_relax() asm volatile ("" ::: "memory"); 30 #endif 31 32 #ifdef __s390__ 33 #include "../../arch/s390/include/asm/unistd.h" 34 #define rmb() asm volatile("bcr 15,0" ::: "memory") 35 #define cpu_relax() asm volatile("" ::: "memory"); 36 #endif 37 38 #ifdef __sh__ 39 #include "../../arch/sh/include/asm/unistd.h" 40 #if defined(__SH4A__) || defined(__SH5__) 41 # define rmb() asm volatile("synco" ::: "memory") 42 #else 43 # define rmb() asm volatile("" ::: "memory") 44 #endif 45 #define cpu_relax() asm volatile("" ::: "memory") 46 #endif 47 48 #ifdef __hppa__ 49 #include "../../arch/parisc/include/asm/unistd.h" 50 #define rmb() asm volatile("" ::: "memory") 51 #define cpu_relax() asm volatile("" ::: "memory"); 52 #endif 53 54 #ifdef __sparc__ 55 #include "../../arch/sparc/include/asm/unistd.h" 56 #define rmb() asm volatile("":::"memory") 57 #define cpu_relax() asm volatile("":::"memory") 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 #endif 65 66 #ifdef __ia64__ 67 #include "../../arch/ia64/include/asm/unistd.h" 68 #define rmb() asm volatile ("mf" ::: "memory") 69 #define cpu_relax() asm volatile ("hint @pause" ::: "memory") 70 #endif 71 72 #ifdef __arm__ 73 /* ANDROID_CHANGE_BEGIN */ 74 #if 0 75 #include "../../arch/arm/include/asm/unistd.h" 76 #else 77 #include <asm/unistd.h> 78 #endif 79 /* ANDROID_CHANGE_END */ 80 /* 81 * Use the __kuser_memory_barrier helper in the CPU helper page. See 82 * arch/arm/kernel/entry-armv.S in the kernel source for details. 83 */ 84 #define rmb() ((void(*)(void))0xffff0fa0)() 85 #define cpu_relax() asm volatile("":::"memory") 86 #endif 87 88 #ifdef __mips__ 89 #include "../../arch/mips/include/asm/unistd.h" 90 #define rmb() asm volatile( \ 91 ".set mips2\n\t" \ 92 "sync\n\t" \ 93 ".set mips0" \ 94 : /* no output */ \ 95 : /* no input */ \ 96 : "memory") 97 #define cpu_relax() asm volatile("" ::: "memory") 98 #endif 99 100 #include <time.h> 101 #include <unistd.h> 102 #include <sys/types.h> 103 104 #include <sys/syscall.h> 105 106 /* ANDROID_CHANGE_BEGIN */ 107 #if 0 108 #include "../../include/linux/perf_event.h" 109 #else 110 #include "util/include/linux/added/perf_event.h" 111 #endif 112 /* ANDROID_CHANGE_END */ 113 #include "util/types.h" 114 #include <stdbool.h> 115 116 struct perf_mmap { 117 void *base; 118 int mask; 119 unsigned int prev; 120 }; 121 122 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm) 123 { 124 struct perf_event_mmap_page *pc = mm->base; 125 int head = pc->data_head; 126 rmb(); 127 return head; 128 } 129 130 static inline void perf_mmap__write_tail(struct perf_mmap *md, 131 unsigned long tail) 132 { 133 struct perf_event_mmap_page *pc = md->base; 134 135 /* 136 * ensure all reads are done before we write the tail out. 137 */ 138 /* mb(); */ 139 pc->data_tail = tail; 140 } 141 142 /* 143 * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all 144 * counters in the current task. 145 */ 146 #define PR_TASK_PERF_EVENTS_DISABLE 31 147 #define PR_TASK_PERF_EVENTS_ENABLE 32 148 149 #ifndef NSEC_PER_SEC 150 # define NSEC_PER_SEC 1000000000ULL 151 #endif 152 153 /* ANDROID_CHANGE_BEGIN */ 154 #ifndef __APPLE__ 155 static inline unsigned long long rdclock(void) 156 { 157 struct timespec ts; 158 159 clock_gettime(CLOCK_MONOTONIC, &ts); 160 return ts.tv_sec * 1000000000ULL + ts.tv_nsec; 161 } 162 #endif 163 /* ANDROID_CHANGE_END */ 164 165 /* 166 * Pick up some kernel type conventions: 167 */ 168 #define __user 169 #define asmlinkage 170 171 #define unlikely(x) __builtin_expect(!!(x), 0) 172 #define min(x, y) ({ \ 173 typeof(x) _min1 = (x); \ 174 typeof(y) _min2 = (y); \ 175 (void) (&_min1 == &_min2); \ 176 _min1 < _min2 ? _min1 : _min2; }) 177 178 /* ANDROID_CHANGE_BEGIN */ 179 #ifndef __APPLE__ 180 static inline int 181 sys_perf_event_open(struct perf_event_attr *attr, 182 pid_t pid, int cpu, int group_fd, 183 unsigned long flags) 184 { 185 attr->size = sizeof(*attr); 186 return syscall(__NR_perf_event_open, attr, pid, cpu, 187 group_fd, flags); 188 } 189 #endif 190 /* ANDROID_CHANGE_END */ 191 192 #define MAX_COUNTERS 256 193 #define MAX_NR_CPUS 256 194 195 struct ip_callchain { 196 u64 nr; 197 u64 ips[0]; 198 }; 199 200 extern bool perf_host, perf_guest; 201 202 #endif 203
