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drm/vc4: Release fence after signalling
[ Upstream commitbabc811005
] We were never releasing the initial fence reference that is obtained through dma_fence_init. Link: https://github.com/anholt/linux/issues/122 Fixes:cdec4d3613
("drm/vc4: Expose dma-buf fences for V3D rendering.") Signed-off-by: Stefan Schake <stschake@gmail.com> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Eric Anholt <eric@anholt.net> Link: https://patchwork.freedesktop.org/patch/msgid/1512236444-301-1-git-send-email-stschake@gmail.com Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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2 changed files with 4 additions and 1 deletions
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@ -829,8 +829,10 @@ vc4_complete_exec(struct drm_device *dev, struct vc4_exec_info *exec)
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/* If we got force-completed because of GPU reset rather than
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* through our IRQ handler, signal the fence now.
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*/
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if (exec->fence)
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if (exec->fence) {
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dma_fence_signal(exec->fence);
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dma_fence_put(exec->fence);
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}
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if (exec->bo) {
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for (i = 0; i < exec->bo_count; i++)
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@ -139,6 +139,7 @@ vc4_irq_finish_render_job(struct drm_device *dev)
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list_move_tail(&exec->head, &vc4->job_done_list);
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if (exec->fence) {
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dma_fence_signal_locked(exec->fence);
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dma_fence_put(exec->fence);
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exec->fence = NULL;
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}
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vc4_submit_next_render_job(dev);
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