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path: root/drivers/gpu/drm
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Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/i915/gt/intel_breadcrumbs.c13
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_fence.c3
2 files changed, 10 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_breadcrumbs.c b/drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
index c092bdf5f0bf..ea56b2cc6095 100644
--- a/drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/gt/intel_breadcrumbs.c
@@ -112,18 +112,18 @@ __dma_fence_signal__timestamp(struct dma_fence *fence, ktime_t timestamp)
}
static void
-__dma_fence_signal__notify(struct dma_fence *fence)
+__dma_fence_signal__notify(struct dma_fence *fence,
+ const struct list_head *list)
{
struct dma_fence_cb *cur, *tmp;
lockdep_assert_held(fence->lock);
lockdep_assert_irqs_disabled();
- list_for_each_entry_safe(cur, tmp, &fence->cb_list, node) {
+ list_for_each_entry_safe(cur, tmp, list, node) {
INIT_LIST_HEAD(&cur->node);
cur->func(fence, cur);
}
- INIT_LIST_HEAD(&fence->cb_list);
}
void intel_engine_breadcrumbs_irq(struct intel_engine_cs *engine)
@@ -185,11 +185,12 @@ void intel_engine_breadcrumbs_irq(struct intel_engine_cs *engine)
list_for_each_safe(pos, next, &signal) {
struct i915_request *rq =
list_entry(pos, typeof(*rq), signal_link);
-
- __dma_fence_signal__timestamp(&rq->fence, timestamp);
+ struct list_head cb_list;
spin_lock(&rq->lock);
- __dma_fence_signal__notify(&rq->fence);
+ list_replace(&rq->fence.cb_list, &cb_list);
+ __dma_fence_signal__timestamp(&rq->fence, timestamp);
+ __dma_fence_signal__notify(&rq->fence, &cb_list);
spin_unlock(&rq->lock);
i915_request_put(rq);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
index 301260e23e52..c446eb34d6c6 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
@@ -184,6 +184,9 @@ static long vmw_fence_wait(struct dma_fence *f, bool intr, signed long timeout)
spin_lock(f->lock);
+ if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &f->flags))
+ goto out;
+
if (intr && signal_pending(current)) {
ret = -ERESTARTSYS;
goto out;