Re: [PATCH 1/4] drm/virtio: pass gem reservation object to ttm init

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On Mon, Jun 17, 2019 at 01:14:03PM +0200, Gerd Hoffmann wrote:
> With this gem and ttm will use the same reservation object,
> so mixing and matching ttm / gem reservation helpers should
> work fine.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>

While doing my prime doc+cleanup series I wondered whether we should do
this for everyone, and perhaps even remove ttm_bo.ttm_resv. Only driver
which doesn't yet have a gem_bo embedded in the same allocation is vmwgfx,
and that would be easy to fix by adding a vmwgfx_resv somehwere.

Anyway, looks like a solid start into the convergence story.

Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>

> ---
>  drivers/gpu/drm/virtio/virtgpu_object.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
> index b2da31310d24..242766d644a7 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_object.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_object.c
> @@ -132,7 +132,8 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
>  	virtio_gpu_init_ttm_placement(bo);
>  	ret = ttm_bo_init(&vgdev->mman.bdev, &bo->tbo, params->size,
>  			  ttm_bo_type_device, &bo->placement, 0,
> -			  true, acc_size, NULL, NULL,
> +			  true, acc_size, NULL,
> +			  bo->gem_base.resv,
>  			  &virtio_gpu_ttm_bo_destroy);
>  	/* ttm_bo_init failure will call the destroy */
>  	if (ret != 0)
> -- 
> 2.18.1
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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