Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4358 | Serge | 1 | |
| 2 | #include "util/u_memory.h" |
||
| 3 | #include "util/u_atomic.h" |
||
| 4 | #include "util/u_inlines.h" |
||
| 5 | |||
| 6 | |||
| 7 | * Because gem does not have fence's we have to create our own fences. |
||
| 8 | * |
||
| 9 | * They work by keeping the batchbuffer around and checking if that has |
||
| 10 | * been idled. If bo is NULL fence has expired. |
||
| 11 | */ |
||
| 12 | struct i915_drm_fence |
||
| 13 | { |
||
| 14 | struct pipe_reference reference; |
||
| 15 | drm_intel_bo *bo; |
||
| 16 | }; |
||
| 17 | |||
| 18 | |||
| 19 | |||
| 20 | i915_drm_fence_create(drm_intel_bo *bo) |
||
| 21 | { |
||
| 22 | struct i915_drm_fence *fence = CALLOC_STRUCT(i915_drm_fence); |
||
| 23 | |||
| 24 | |||
| 25 | /* bo is null if fence already expired */ |
||
| 26 | if (bo) { |
||
| 27 | drm_intel_bo_reference(bo); |
||
| 28 | fence->bo = bo; |
||
| 29 | } |
||
| 30 | |||
| 31 | |||
| 32 | } |
||
| 33 | |||
| 34 | |||
| 35 | i915_drm_fence_reference(struct i915_winsys *iws, |
||
| 36 | struct pipe_fence_handle **ptr, |
||
| 37 | struct pipe_fence_handle *fence) |
||
| 38 | { |
||
| 39 | struct i915_drm_fence *old = (struct i915_drm_fence *)*ptr; |
||
| 40 | struct i915_drm_fence *f = (struct i915_drm_fence *)fence; |
||
| 41 | |||
| 42 | |||
| 43 | if (old->bo) |
||
| 44 | drm_intel_bo_unreference(old->bo); |
||
| 45 | FREE(old); |
||
| 46 | } |
||
| 47 | *ptr = fence; |
||
| 48 | } |
||
| 49 | |||
| 50 | |||
| 51 | i915_drm_fence_signalled(struct i915_winsys *iws, |
||
| 52 | struct pipe_fence_handle *fence) |
||
| 53 | { |
||
| 54 | struct i915_drm_fence *f = (struct i915_drm_fence *)fence; |
||
| 55 | |||
| 56 | |||
| 57 | if (!f->bo) |
||
| 58 | return 1; |
||
| 59 | |||
| 60 | |||
| 61 | } |
||
| 62 | |||
| 63 | |||
| 64 | i915_drm_fence_finish(struct i915_winsys *iws, |
||
| 65 | struct pipe_fence_handle *fence) |
||
| 66 | { |
||
| 67 | struct i915_drm_fence *f = (struct i915_drm_fence *)fence; |
||
| 68 | |||
| 69 | |||
| 70 | if (!f->bo) |
||
| 71 | return 0; |
||
| 72 | |||
| 73 | |||
| 74 | drm_intel_bo_unreference(f->bo); |
||
| 75 | f->bo = NULL; |
||
| 76 | |||
| 77 | |||
| 78 | } |
||
| 79 | |||
| 80 | |||
| 81 | i915_drm_winsys_init_fence_functions(struct i915_drm_winsys *idws) |
||
| 82 | { |
||
| 83 | idws->base.fence_reference = i915_drm_fence_reference; |
||
| 84 | idws->base.fence_signalled = i915_drm_fence_signalled; |
||
| 85 | idws->base.fence_finish = i915_drm_fence_finish; |
||
| 86 | } |
||
| 87 |