18c2ecf20Sopenharmony_ci#ifndef __NVIF_TIMER_H__ 28c2ecf20Sopenharmony_ci#define __NVIF_TIMER_H__ 38c2ecf20Sopenharmony_ci#include <nvif/os.h> 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_cistruct nvif_timer_wait { 68c2ecf20Sopenharmony_ci struct nvif_device *device; 78c2ecf20Sopenharmony_ci u64 limit; 88c2ecf20Sopenharmony_ci u64 time0; 98c2ecf20Sopenharmony_ci u64 time1; 108c2ecf20Sopenharmony_ci int reads; 118c2ecf20Sopenharmony_ci}; 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_civoid nvif_timer_wait_init(struct nvif_device *, u64 nsec, 148c2ecf20Sopenharmony_ci struct nvif_timer_wait *); 158c2ecf20Sopenharmony_cis64 nvif_timer_wait_test(struct nvif_timer_wait *); 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ci/* Delay based on GPU time (ie. PTIMER). 188c2ecf20Sopenharmony_ci * 198c2ecf20Sopenharmony_ci * Will return -ETIMEDOUT unless the loop was terminated with 'break', 208c2ecf20Sopenharmony_ci * where it will return the number of nanoseconds taken instead. 218c2ecf20Sopenharmony_ci */ 228c2ecf20Sopenharmony_ci#define nvif_nsec(d,n,cond...) ({ \ 238c2ecf20Sopenharmony_ci struct nvif_timer_wait _wait; \ 248c2ecf20Sopenharmony_ci s64 _taken = 0; \ 258c2ecf20Sopenharmony_ci \ 268c2ecf20Sopenharmony_ci nvif_timer_wait_init((d), (n), &_wait); \ 278c2ecf20Sopenharmony_ci do { \ 288c2ecf20Sopenharmony_ci cond \ 298c2ecf20Sopenharmony_ci } while ((_taken = nvif_timer_wait_test(&_wait)) >= 0); \ 308c2ecf20Sopenharmony_ci \ 318c2ecf20Sopenharmony_ci _taken; \ 328c2ecf20Sopenharmony_ci}) 338c2ecf20Sopenharmony_ci#define nvif_usec(d,u,cond...) nvif_nsec((d), (u) * 1000, ##cond) 348c2ecf20Sopenharmony_ci#define nvif_msec(d,m,cond...) nvif_usec((d), (m) * 1000, ##cond) 358c2ecf20Sopenharmony_ci#endif 36