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");
11 #include "../../arch/powerpc/include/asm/unistd.h"
12 #define rmb() asm volatile ("sync" ::: "memory")
13 #define cpu_relax() asm volatile ("" ::: "memory");
17 #include "../../arch/s390/include/asm/unistd.h"
18 #define rmb() asm volatile("bcr 15,0" ::: "memory")
19 #define cpu_relax() asm volatile("" ::: "memory");
23 #include "../../arch/sh/include/asm/unistd.h"
24 #if defined(__SH4A__) || defined(__SH5__)
25 # define rmb() asm volatile("synco" ::: "memory")
27 # define rmb() asm volatile("" ::: "memory")
29 #define cpu_relax() asm volatile("" ::: "memory")
33 #include "../../arch/parisc/include/asm/unistd.h"
34 #define rmb() asm volatile("" ::: "memory")
35 #define cpu_relax() asm volatile("" ::: "memory");
40 #include <sys/types.h>
41 #include <sys/syscall.h>
43 #include "../../include/linux/perf_counter.h"
44 #include "util/types.h"
47 * prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all
48 * counters in the current task.
50 #define PR_TASK_PERF_COUNTERS_DISABLE 31
51 #define PR_TASK_PERF_COUNTERS_ENABLE 32
54 # define NSEC_PER_SEC 1000000000ULL
57 static inline unsigned long long rdclock(void)
61 clock_gettime(CLOCK_MONOTONIC, &ts);
62 return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
66 * Pick up some kernel type conventions:
71 #define __used __attribute__((__unused__))
73 #define unlikely(x) __builtin_expect(!!(x), 0)
74 #define min(x, y) ({ \
75 typeof(x) _min1 = (x); \
76 typeof(y) _min2 = (y); \
77 (void) (&_min1 == &_min2); \
78 _min1 < _min2 ? _min1 : _min2; })
81 sys_perf_counter_open(struct perf_counter_attr *attr,
82 pid_t pid, int cpu, int group_fd,
85 attr->size = sizeof(*attr);
86 return syscall(__NR_perf_counter_open, attr, pid, cpu,
90 #define MAX_COUNTERS 256
91 #define MAX_NR_CPUS 256