| #ifndef ARCH_IA64_H |
| #define ARCH_IA64_H |
| |
| #define ARCH (arch_ia64) |
| |
| #ifndef __NR_ioprio_set |
| #define __NR_ioprio_set 1274 |
| #define __NR_ioprio_get 1275 |
| #endif |
| |
| #ifndef __NR_fadvise64 |
| #define __NR_fadvise64 1234 |
| #endif |
| |
| #ifndef __NR_sys_splice |
| #define __NR_sys_splice 1297 |
| #define __NR_sys_tee 1301 |
| #define __NR_sys_vmsplice 1302 |
| #endif |
| |
| #define nop asm volatile ("hint @pause" ::: "memory"); |
| #define read_barrier() asm volatile ("mf" ::: "memory") |
| #define write_barrier() asm volatile ("mf" ::: "memory") |
| |
| #define ia64_popcnt(x) \ |
| ({ \ |
| unsigned long ia64_intri_res; \ |
| asm ("popcnt %0=%1" : "=r" (ia64_intri_res) : "r" (x)); \ |
| ia64_intri_res; \ |
| }) |
| |
| static inline unsigned long arch_ffz(unsigned long bitmask) |
| { |
| return ia64_popcnt(bitmask & (~bitmask - 1)); |
| } |
| |
| static inline unsigned long get_cpu_clock(void) |
| { |
| unsigned long ret; |
| |
| __asm__ __volatile__("mov %0=ar.itc" : "=r" (ret) : : "memory"); |
| return ret; |
| } |
| |
| #define ARCH_HAVE_FFZ |
| #define ARCH_HAVE_CPU_CLOCK |
| |
| #endif |