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| 1 | #ifndef __NVIF_TIMER_H__ |
|---|---|
| 2 | #define __NVIF_TIMER_H__ |
| 3 | #include <nvif/os.h> |
| 4 | |
| 5 | struct nvif_timer_wait { |
| 6 | struct nvif_device *device; |
| 7 | u64 limit; |
| 8 | u64 time0; |
| 9 | u64 time1; |
| 10 | int reads; |
| 11 | }; |
| 12 | |
| 13 | void nvif_timer_wait_init(struct nvif_device *, u64 nsec, |
| 14 | struct nvif_timer_wait *); |
| 15 | s64 nvif_timer_wait_test(struct nvif_timer_wait *); |
| 16 | |
| 17 | /* Delay based on GPU time (ie. PTIMER). |
| 18 | * |
| 19 | * Will return -ETIMEDOUT unless the loop was terminated with 'break', |
| 20 | * where it will return the number of nanoseconds taken instead. |
| 21 | */ |
| 22 | #define nvif_nsec(d,n,cond...) ({ \ |
| 23 | struct nvif_timer_wait _wait; \ |
| 24 | s64 _taken = 0; \ |
| 25 | \ |
| 26 | nvif_timer_wait_init((d), (n), &_wait); \ |
| 27 | do { \ |
| 28 | cond \ |
| 29 | } while ((_taken = nvif_timer_wait_test(&_wait)) >= 0); \ |
| 30 | \ |
| 31 | _taken; \ |
| 32 | }) |
| 33 | #define nvif_usec(d,u,cond...) nvif_nsec((d), (u) * 1000, ##cond) |
| 34 | #define nvif_msec(d,m,cond...) nvif_usec((d), (m) * 1000, ##cond) |
| 35 | #endif |
| 36 |
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