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https://github.com/edk2-porting/linux-next.git
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14f0652b4f
It uses the likely/unlikely macros, so need to include <linux/compiler.h>. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-p0xrhgbkicsii9ohmhhprqpi@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
103 lines
1.9 KiB
C
103 lines
1.9 KiB
C
#ifndef _PERF_SYS_H
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#define _PERF_SYS_H
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/syscall.h>
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#include <linux/types.h>
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#include <linux/compiler.h>
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#include <linux/perf_event.h>
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#include <asm/barrier.h>
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#if defined(__i386__)
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#define cpu_relax() asm volatile("rep; nop" ::: "memory");
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#define CPUINFO_PROC {"model name"}
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#endif
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#if defined(__x86_64__)
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#define cpu_relax() asm volatile("rep; nop" ::: "memory");
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#define CPUINFO_PROC {"model name"}
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#endif
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#ifdef __powerpc__
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#include "../../arch/powerpc/include/uapi/asm/unistd.h"
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#define CPUINFO_PROC {"cpu"}
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#endif
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#ifdef __s390__
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#define CPUINFO_PROC {"vendor_id"}
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#endif
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#ifdef __sh__
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#define CPUINFO_PROC {"cpu type"}
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#endif
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#ifdef __hppa__
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#define CPUINFO_PROC {"cpu"}
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#endif
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#ifdef __sparc__
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#define CPUINFO_PROC {"cpu"}
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#endif
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#ifdef __alpha__
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#define CPUINFO_PROC {"cpu model"}
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#endif
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#ifdef __ia64__
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#define cpu_relax() asm volatile ("hint @pause" ::: "memory")
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#define CPUINFO_PROC {"model name"}
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#endif
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#ifdef __arm__
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#define CPUINFO_PROC {"model name", "Processor"}
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#endif
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#ifdef __aarch64__
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#define cpu_relax() asm volatile("yield" ::: "memory")
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#endif
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#ifdef __mips__
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#define CPUINFO_PROC {"cpu model"}
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#endif
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#ifdef __arc__
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#define CPUINFO_PROC {"Processor"}
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#endif
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#ifdef __metag__
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#define CPUINFO_PROC {"CPU"}
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#endif
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#ifdef __xtensa__
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#define CPUINFO_PROC {"core ID"}
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#endif
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#ifdef __tile__
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#define cpu_relax() asm volatile ("mfspr zero, PASS" ::: "memory")
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#define CPUINFO_PROC {"model name"}
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#endif
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#ifndef cpu_relax
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#define cpu_relax() barrier()
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#endif
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static inline int
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sys_perf_event_open(struct perf_event_attr *attr,
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pid_t pid, int cpu, int group_fd,
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unsigned long flags)
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{
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int fd;
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fd = syscall(__NR_perf_event_open, attr, pid, cpu,
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group_fd, flags);
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#ifdef HAVE_ATTR_TEST
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if (unlikely(test_attr__enabled))
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test_attr__open(attr, pid, cpu, fd, group_fd, flags);
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#endif
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return fd;
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}
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#endif /* _PERF_SYS_H */
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