[fio.git] / arch-x86_64.h

#ifndef ARCH_X86_64_h
#define ARCH_X86_64_h

#define ARCH	(arch_x86_64)

#ifndef __NR_ioprio_set
#define __NR_ioprio_set		251
#define __NR_ioprio_get		252
#endif

#ifndef __NR_fadvise64
#define __NR_fadvise64		221
#endif

#define nop	__asm__ __volatile__("rep;nop": : :"memory")

static inline unsigned long ffz(unsigned long bitmask)
{
	__asm__("bsfq %1,%0" :"=r" (bitmask) :"r" (~bitmask));
	return bitmask;
}


#endif
Commit	Line	Data
	1	#ifndef ARCH_X86_64_h
	2	#define ARCH_X86_64_h
	3
	4	#define ARCH (arch_x86_64)
	5
	6	#ifndef __NR_ioprio_set
	7	#define __NR_ioprio_set 251
	8	#define __NR_ioprio_get 252
	9	#endif
	10
	11	#ifndef __NR_fadvise64
	12	#define __NR_fadvise64 221
	13	#endif
	14
	15	#define nop __asm__ __volatile__("rep;nop": : :"memory")
	16
	17	static inline unsigned long ffz(unsigned long bitmask)
	18	{
	19	__asm__("bsfq %1,%0" :"=r" (bitmask) :"r" (~bitmask));
	20	return bitmask;
	21	}
	22
	23
	24	#endif