1#ifndef _PERF_SYS_H
  2#define _PERF_SYS_H
  3
  4#include <unistd.h>
  5#include <sys/types.h>
  6#include <sys/syscall.h>
  7#include <linux/types.h>
  8#include <linux/compiler.h>
  9#include <linux/perf_event.h>
 10#include <asm/barrier.h>
 11
 12#if defined(__i386__)
 13#define cpu_relax()	asm volatile("rep; nop" ::: "memory");
 14#define CPUINFO_PROC	{"model name"}
 15#endif
 16
 17#if defined(__x86_64__)
 18#define cpu_relax()	asm volatile("rep; nop" ::: "memory");
 19#define CPUINFO_PROC	{"model name"}
 20#endif
 21
 22#ifdef __powerpc__
 23#define CPUINFO_PROC	{"cpu"}
 24#endif
 25
 26#ifdef __s390__
 27#define CPUINFO_PROC	{"vendor_id"}
 28#endif
 29
 30#ifdef __sh__
 31#define CPUINFO_PROC	{"cpu type"}
 32#endif
 33
 34#ifdef __hppa__
 35#define CPUINFO_PROC	{"cpu"}
 36#endif
 37
 38#ifdef __sparc__
 39#define CPUINFO_PROC	{"cpu"}
 40#endif
 41
 42#ifdef __alpha__
 43#define CPUINFO_PROC	{"cpu model"}
 44#endif
 45
 46#ifdef __ia64__
 47#define cpu_relax()	asm volatile ("hint @pause" ::: "memory")
 48#define CPUINFO_PROC	{"model name"}
 49#endif
 50
 51#ifdef __arm__
 52#define CPUINFO_PROC	{"model name", "Processor"}
 53#endif
 54
 55#ifdef __aarch64__
 56#define cpu_relax()	asm volatile("yield" ::: "memory")
 57#endif
 58
 59#ifdef __mips__
 60#define CPUINFO_PROC	{"cpu model"}
 61#endif
 62
 63#ifdef __arc__
 64#define CPUINFO_PROC	{"Processor"}
 65#endif
 66
 67#ifdef __metag__
 68#define CPUINFO_PROC	{"CPU"}
 69#endif
 70
 71#ifdef __xtensa__
 72#define CPUINFO_PROC	{"core ID"}
 73#endif
 74
 75#ifdef __tile__
 76#define cpu_relax()	asm volatile ("mfspr zero, PASS" ::: "memory")
 77#define CPUINFO_PROC    {"model name"}
 78#endif
 79
 80#ifndef cpu_relax
 81#define cpu_relax() barrier()
 82#endif
 83
 84static inline int
 85sys_perf_event_open(struct perf_event_attr *attr,
 86		      pid_t pid, int cpu, int group_fd,
 87		      unsigned long flags)
 88{
 89	int fd;
 90
 91	fd = syscall(__NR_perf_event_open, attr, pid, cpu,
 92		     group_fd, flags);
 93
 94#ifdef HAVE_ATTR_TEST
 95	if (unlikely(test_attr__enabled))
 96		test_attr__open(attr, pid, cpu, fd, group_fd, flags);
 97#endif
 98	return fd;
 99}
100
101#endif /* _PERF_SYS_H */