[PATCH 13/17] drm/radeon: Remove custom dma_fence_ops->wait implementation

Daniel Vetter daniel.vetter at ffwll.ch
Fri Apr 27 06:17:20 UTC 2018


It's a copy of dma_fence_default_wait, written slightly differently.

Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: "Christian K├Ânig" <christian.koenig at amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou at amd.com>
Cc: amd-gfx at lists.freedesktop.org
---
 drivers/gpu/drm/radeon/radeon_fence.c | 63 ---------------------------
 1 file changed, 63 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index e86f2bd38410..32690a525bfc 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -1051,72 +1051,9 @@ static const char *radeon_fence_get_timeline_name(struct dma_fence *f)
 	}
 }
 
-static inline bool radeon_test_signaled(struct radeon_fence *fence)
-{
-	return test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->base.flags);
-}
-
-struct radeon_wait_cb {
-	struct dma_fence_cb base;
-	struct task_struct *task;
-};
-
-static void
-radeon_fence_wait_cb(struct dma_fence *fence, struct dma_fence_cb *cb)
-{
-	struct radeon_wait_cb *wait =
-		container_of(cb, struct radeon_wait_cb, base);
-
-	wake_up_process(wait->task);
-}
-
-static signed long radeon_fence_default_wait(struct dma_fence *f, bool intr,
-					     signed long t)
-{
-	struct radeon_fence *fence = to_radeon_fence(f);
-	struct radeon_device *rdev = fence->rdev;
-	struct radeon_wait_cb cb;
-
-	cb.task = current;
-
-	if (dma_fence_add_callback(f, &cb.base, radeon_fence_wait_cb))
-		return t;
-
-	while (t > 0) {
-		if (intr)
-			set_current_state(TASK_INTERRUPTIBLE);
-		else
-			set_current_state(TASK_UNINTERRUPTIBLE);
-
-		/*
-		 * radeon_test_signaled must be called after
-		 * set_current_state to prevent a race with wake_up_process
-		 */
-		if (radeon_test_signaled(fence))
-			break;
-
-		if (rdev->needs_reset) {
-			t = -EDEADLK;
-			break;
-		}
-
-		t = schedule_timeout(t);
-
-		if (t > 0 && intr && signal_pending(current))
-			t = -ERESTARTSYS;
-	}
-
-	__set_current_state(TASK_RUNNING);
-	dma_fence_remove_callback(f, &cb.base);
-
-	return t;
-}
-
 const struct dma_fence_ops radeon_fence_ops = {
 	.get_driver_name = radeon_fence_get_driver_name,
 	.get_timeline_name = radeon_fence_get_timeline_name,
 	.enable_signaling = radeon_fence_enable_signaling,
 	.signaled = radeon_fence_is_signaled,
-	.wait = radeon_fence_default_wait,
-	.release = NULL,
 };
-- 
2.17.0



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