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authorRob Clark <robdclark@chromium.org>2021-11-09 10:11:04 -0800
committerRob Clark <robdclark@chromium.org>2021-11-28 09:56:47 -0800
commit5f3aee4ceb5b8607e9a4b752c2547667200e19e2 (patch)
tree934beb2681895656580507bbd893c791ac8b3c8d /drivers/gpu/drm/msm/msm_gpu.c
parentc28e2f2b417ed747bfbc5f900c87f3ec9cc6b25e (diff)
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_gpu.c')
-rw-r--r--drivers/gpu/drm/msm/msm_gpu.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 13de1241d595..0f78c2615272 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -172,7 +172,7 @@ static void update_fences(struct msm_gpu *gpu, struct msm_ringbuffer *ring,
spin_lock_irqsave(&ring->submit_lock, flags);
list_for_each_entry(submit, &ring->submits, node) {
- if (submit->seqno > fence)
+ if (fence_after(submit->seqno, fence))
break;
msm_update_fence(submit->ring->fctx,
@@ -509,7 +509,7 @@ static void hangcheck_handler(struct timer_list *t)
if (fence != ring->hangcheck_fence) {
/* some progress has been made.. ya! */
ring->hangcheck_fence = fence;
- } else if (fence < ring->seqno) {
+ } else if (fence_before(fence, ring->seqno)) {
/* no progress and not done.. hung! */
ring->hangcheck_fence = fence;
DRM_DEV_ERROR(dev->dev, "%s: hangcheck detected gpu lockup rb %d!\n",
@@ -523,7 +523,7 @@ static void hangcheck_handler(struct timer_list *t)
}
/* if still more pending work, reset the hangcheck timer: */
- if (ring->seqno > ring->hangcheck_fence)
+ if (fence_after(ring->seqno, ring->hangcheck_fence))
hangcheck_timer_reset(gpu);
/* workaround for missing irq: */