This change:
- Lookups virtgpu_fence given a fence_id
- Signals all prior fences in a given context
- Signals current fence
No functional changes yet, since all fences are initialized from
context 0.
Signed-off-by: Gurchetan Singh <gurchetansi...@chromium.org>
---
drivers/gpu/drm/virtio/virtgpu_fence.c | 27 ++++++++++++++++++++------
1 file changed, 21 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_fence.c
b/drivers/gpu/drm/virtio/virtgpu_fence.c
index a63a383347c4..a6c6f498e79e 100644
--- a/drivers/gpu/drm/virtio/virtgpu_fence.c
+++ b/drivers/gpu/drm/virtio/virtgpu_fence.c
@@ -115,17 +115,32 @@ void virtio_gpu_fence_event_process(struct
virtio_gpu_device *vgdev,
u64 fence_id)
{
struct virtio_gpu_fence_driver *drv = &vgdev->fence_drv;
- struct virtio_gpu_fence *fence, *tmp;
+ struct virtio_gpu_fence *signaled, *curr, *tmp;
unsigned long irq_flags;
spin_lock_irqsave(&drv->lock, irq_flags);
atomic64_set(&vgdev->fence_drv.last_fence_id, fence_id);
- list_for_each_entry_safe(fence, tmp, &drv->fences, node) {
- if (fence_id < fence->f.seqno)
+ list_for_each_entry_safe(curr, tmp, &drv->fences, node) {
+ if (fence_id != curr->fence_id)
continue;
- dma_fence_signal_locked(&fence->f);
- list_del(&fence->node);
- dma_fence_put(&fence->f);
+
+ signaled = curr;
+ list_for_each_entry_safe(curr, tmp, &drv->fences, node) {
+ if (signaled->f.context != curr->f.context)
+ continue;
+
+ if (!dma_fence_is_later(&signaled->f, &curr->f))
+ continue;
+
+ dma_fence_signal_locked(&curr->f);
+ list_del(&curr->node);
+ dma_fence_put(&curr->f);
+ }
+
+ dma_fence_signal_locked(&signaled->f);
+ list_del(&signaled->node);
+ dma_fence_put(&signaled->f);
+ break;
}
spin_unlock_irqrestore(&drv->lock, irq_flags);
}
--
2.25.1.481.gfbce0eb801-goog
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