Messages in this thread | | | From | David Stevens <> | Date | Fri, 15 May 2020 16:26:15 +0900 | Subject | Re: [PATCH v3 4/4] drm/virtio: Support virtgpu exported resources |
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> > + if (virtio_has_feature(vgdev->vdev, VIRTIO_GPU_F_RESOURCE_UUID)) { > > + vgdev->has_resource_assign_uuid = true; > > + } > > > Just a question: this relies on DMA bufs so I assume it is > not really assumed to work when DMA API is bypassed, right? > Rather than worry what does it mean, how about just > disabling this feature without PLATFORM_DMA for now?
By PLATFORM_DMA, do you mean CONFIG_DMA_SHARED_BUFFER? Virtio-gpu depends on DRM, which selects that feature. So I think DMA bufs should always be available when virtio-gpu is present.
-David
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