#ifndef __NVIF_TIMER_H__ #define __NVIF_TIMER_H__ #include <nvif/os.h> struct nvif_timer_wait { struct nvif_device *device; u64 limit; u64 time0; u64 time1; int reads; }; void nvif_timer_wait_init(struct nvif_device *, u64 nsec, struct nvif_timer_wait *); s64 nvif_timer_wait_test(struct nvif_timer_wait *); /* Delay based on GPU time (ie. PTIMER). * * Will return -ETIMEDOUT unless the loop was terminated with 'break', * where it will return the number of nanoseconds taken instead. */ #define nvif_nsec(d,n,cond...) ({ \ struct nvif_timer_wait _wait; \ s64 _taken = 0; \ \ nvif_timer_wait_init((d), (n), &_wait); \ do { \ cond \ } while ((_taken = nvif_timer_wait_test(&_wait)) >= 0); \ \ _taken; \ }) #define nvif_usec(d,u,cond...) nvif_nsec((d), (u) * 1000, ##cond) #define nvif_msec(d,m,cond...) nvif_usec((d), (m) * 1000, ##cond) #endif