[fio.git] / arch-ppc.h

#ifndef ARCH_PPC_H
#define ARCH_PPH_H

#define ARCH	(arch_ppc)

#ifndef __NR_ioprio_set
#define __NR_ioprio_set		273
#define __NR_ioprio_get		274
#endif

#ifndef __NR_fadvise64
#define __NR_fadvise64		233
#endif

#define nop	do { } while (0)

static inline int __ilog2(unsigned long bitmask)
{
	int lz;

	asm ("cntlzw %0,%1" : "=r" (lz) : "r" (bitmask));
	return 31 - lz;
}

static inline int ffz(unsigned long bitmask)
{
	if ((bitmask = ~bitmask) == 0)
		return 32;
	return  __ilog2(bitmask & -bitmask);
}

#endif
Commit	Line	Data
	1	#ifndef ARCH_PPC_H
	2	#define ARCH_PPH_H
	3
	4	#define ARCH (arch_ppc)
	5
	6	#ifndef __NR_ioprio_set
	7	#define __NR_ioprio_set 273
	8	#define __NR_ioprio_get 274
	9	#endif
	10
	11	#ifndef __NR_fadvise64
	12	#define __NR_fadvise64 233
	13	#endif
	14
	15	#define nop do { } while (0)
	16
	17	static inline int __ilog2(unsigned long bitmask)
	18	{
	19	int lz;
	20
	21	asm ("cntlzw %0,%1" : "=r" (lz) : "r" (bitmask));
	22	return 31 - lz;
	23	}
	24
	25	static inline int ffz(unsigned long bitmask)
	26	{
	27	if ((bitmask = ~bitmask) == 0)
	28	return 32;
	29	return __ilog2(bitmask & -bitmask);
	30	}
	31
	32	#endif