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#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
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