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");
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");
17 #include "../../arch/powerpc/include/asm/unistd.h"
18 #define rmb() asm volatile ("sync" ::: "memory")
19 #define cpu_relax() asm volatile ("" ::: "memory");
23 #include "../../arch/s390/include/asm/unistd.h"
24 #define rmb() asm volatile("bcr 15,0" ::: "memory")
25 #define cpu_relax() asm volatile("" ::: "memory");
30 #include <sys/types.h>
31 #include <sys/syscall.h>
33 #include "../../include/linux/perf_counter.h"
34 #include "util/types.h"
37 * prctl(PR_TASK_PERF_COUNTERS_DISABLE) will (cheaply) disable all
38 * counters in the current task.
40 #define PR_TASK_PERF_COUNTERS_DISABLE 31
41 #define PR_TASK_PERF_COUNTERS_ENABLE 32
44 # define NSEC_PER_SEC 1000000000ULL
47 static inline unsigned long long rdclock(void)
51 clock_gettime(CLOCK_MONOTONIC, &ts);
52 return ts.tv_sec * 1000000000ULL + ts.tv_nsec;
56 * Pick up some kernel type conventions:
61 #define __used __attribute__((__unused__))
63 #define unlikely(x) __builtin_expect(!!(x), 0)
64 #define min(x, y) ({ \
65 typeof(x) _min1 = (x); \
66 typeof(y) _min2 = (y); \
67 (void) (&_min1 == &_min2); \
68 _min1 < _min2 ? _min1 : _min2; })
71 sys_perf_counter_open(struct perf_counter_attr *attr,
72 pid_t pid, int cpu, int group_fd,
75 attr->size = sizeof(*attr);
76 return syscall(__NR_perf_counter_open, attr, pid, cpu,
80 #define MAX_COUNTERS 256
81 #define MAX_NR_CPUS 256