For most drivers, drm_fence_init is followed by drm_fence_emit immediately. But for our driver, they are done separately. We also don't know the fence seqno until drm_fence_emit.
Signed-off-by: Chia-I Wu olvaffe@gmail.com --- drivers/gpu/drm/virtio/virtgpu_fence.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/virtio/virtgpu_fence.c b/drivers/gpu/drm/virtio/virtgpu_fence.c index 72b4f7561432..e22918ca621b 100644 --- a/drivers/gpu/drm/virtio/virtgpu_fence.c +++ b/drivers/gpu/drm/virtio/virtgpu_fence.c @@ -24,6 +24,7 @@ */
#include <drm/drmP.h> +#include <trace/events/dma_fence.h> #include "virtgpu_drv.h"
static const char *virtio_get_driver_name(struct dma_fence *f) @@ -97,6 +98,8 @@ int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev, list_add_tail(&fence->node, &drv->fences); spin_unlock_irqrestore(&drv->lock, irq_flags);
+ trace_dma_fence_emit(&fence->f); + cmd_hdr->flags |= cpu_to_le32(VIRTIO_GPU_FLAG_FENCE); cmd_hdr->fence_id = cpu_to_le64(fence->f.seqno); return 0;