arch-ia64.h

   1 #ifndef ARCH_IA64_H
   2 #define ARCH_IA64_H
   3
   4 #define ARCH    (arch_ia64)
   5
   6 #ifndef __NR_ioprio_set
   7 #define __NR_ioprio_set         1274
   8 #define __NR_ioprio_get         1275
   9 #endif
  10
  11 #ifndef __NR_fadvise64
  12 #define __NR_fadvise64          1234
  13 #endif
  14
  15 #define nop     asm volatile ("hint @pause" ::: "memory");
  16
  17 #define ia64_popcnt(x)                                                  \
  18 ({                                                                      \
  19         unsigned long ia64_intri_res;                                   \
  20         asm ("popcnt %0=%1" : "=r" (ia64_intri_res) : "r" (x));         \
  21         ia64_intri_res;                                                 \
  22 })
  23
  24 static inline unsigned long ffz(unsigned long bitmask)
  25 {
  26         return ia64_popcnt(bitmask & (~bitmask - 1));
  27 }
  28
  29 #endif