arch/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 #ifndef __NR_sys_splice
  16 #define __NR_sys_splice         1297
  17 #define __NR_sys_tee            1301
  18 #define __NR_sys_vmsplice       1302
  19 #endif
  20
  21 #define nop             asm volatile ("hint @pause" ::: "memory");
  22 #define read_barrier()  asm volatile ("mf" ::: "memory")
  23
  24 #define ia64_popcnt(x)                                                  \
  25 ({                                                                      \
  26         unsigned long ia64_intri_res;                                   \
  27         asm ("popcnt %0=%1" : "=r" (ia64_intri_res) : "r" (x));         \
  28         ia64_intri_res;                                                 \
  29 })
  30
  31 static inline unsigned long arch_ffz(unsigned long bitmask)
  32 {
  33         return ia64_popcnt(bitmask & (~bitmask - 1));
  34 }
  35 #define ARCH_HAVE_FFZ
  36
  37 #endif