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| author | Rob Clark <robdclark@chromium.org> | 2021-11-09 21:11:04 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2021-11-28 20:56:47 +0300 |
| commit | 5f3aee4ceb5b8607e9a4b752c2547667200e19e2 (patch) | |
| tree | 934beb2681895656580507bbd893c791ac8b3c8d /drivers/gpu/drm/msm/msm_fence.h | |
| parent | c28e2f2b417ed747bfbc5f900c87f3ec9cc6b25e (diff) | |
| download | linux-5f3aee4ceb5b8607e9a4b752c2547667200e19e2.tar.xz | |
drm/msm: Handle fence rollover
Add some helpers for fence comparision, which handle rollover properly,
and stop open coding fence seqno comparisions.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Akhil P Oommen <akhilpo@codeaurora.org>
Link: https://lore.kernel.org/r/20211109181117.591148-5-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_fence.h')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_fence.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_fence.h b/drivers/gpu/drm/msm/msm_fence.h index 4783db528bcc..17ee3822b423 100644 --- a/drivers/gpu/drm/msm/msm_fence.h +++ b/drivers/gpu/drm/msm/msm_fence.h @@ -60,4 +60,16 @@ void msm_update_fence(struct msm_fence_context *fctx, uint32_t fence); struct dma_fence * msm_fence_alloc(struct msm_fence_context *fctx); +static inline bool +fence_before(uint32_t a, uint32_t b) +{ + return (int32_t)(a - b) < 0; +} + +static inline bool +fence_after(uint32_t a, uint32_t b) +{ + return (int32_t)(a - b) > 0; +} + #endif |