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drm/virtio: implement context init: plumb {base_fence_ctx, ring_idx} to virtio_gpu_fence_alloc

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These were defined in the previous commit. We'll need these
parameters when allocating a dma_fence.  The use case for this
is multiple synchronizations timelines.

The maximum number of timelines per 3D instance will be 32. Usually,
only 2 are needed -- one for CPU commands, and another for GPU
commands.

As such, we'll need to specify these parameters when allocating a
dma_fence.

vgdev->fence_drv.context is the "default" fence context for 2D mode
and old userspace.

Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Acked-by: Lingfeng Yang <lfy@google.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20210921232024.817-8-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gurchetan Singh
2021-09-21 16:20:19 -07:00
committed by Gerd Hoffmann
parent 7547675b84
commit e8b6e76f69
4 changed files with 13 additions and 8 deletions
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9
drivers/gpu/drm/virtio/virtgpu_ioctl.c
View File

@@ -173,7 +173,7 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
goto out_memdup;
}
out_fence = virtio_gpu_fence_alloc(vgdev);
out_fence = virtio_gpu_fence_alloc(vgdev, vgdev->fence_drv.context, 0);
if(!out_fence) {
ret = -ENOMEM;
goto out_unresv;
@@ -288,7 +288,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
if (params.size == 0)
params.size = PAGE_SIZE;
fence = virtio_gpu_fence_alloc(vgdev);
fence = virtio_gpu_fence_alloc(vgdev, vgdev->fence_drv.context, 0);
if (!fence)
return -ENOMEM;
ret = virtio_gpu_object_create(vgdev, &params, &qobj, fence);
@@ -367,7 +367,7 @@ static int virtio_gpu_transfer_from_host_ioctl(struct drm_device *dev,
if (ret != 0)
goto err_put_free;
fence = virtio_gpu_fence_alloc(vgdev);
fence = virtio_gpu_fence_alloc(vgdev, vgdev->fence_drv.context, 0);
if (!fence) {
ret = -ENOMEM;
goto err_unlock;
@@ -427,7 +427,8 @@ static int virtio_gpu_transfer_to_host_ioctl(struct drm_device *dev, void *data,
goto err_put_free;
ret = -ENOMEM;
fence = virtio_gpu_fence_alloc(vgdev);
fence = virtio_gpu_fence_alloc(vgdev, vgdev->fence_drv.context,
0);
if (!fence)
goto err_unlock;