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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

#ifndef __NR_sys_splice
#define __NR_sys_splice       283
#define __NR_sys_tee          284
#define __NR_sys_vmsplice     285
#endif

#define nop do { } while (0)

#ifdef __powerpc64__
#define read_barrier()  __asm__ __volatile__ ("lwsync" : : : "memory")
#else
#define read_barrier()  __asm__ __volatile__ ("sync" : : : "memory")
#endif

#define write_barrier() __asm__ __volatile__ ("sync" : : : "memory")

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

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

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

#endif

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