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drm/virtio: implement blob resources: blob display integration

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SCANOUT_BLOB forwards the DRM framebuffer metadata to the host. The
modifier is intentionally left out -- it may be possible to query
the host for that.

We also assume one blob resource per DRM framebuffer.  That too is
an intentional simplification.

Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
Acked-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-14-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gurchetan Singh 2020-09-23 17:32:09 -07:00 committed by Gerd Hoffmann
parent c7a6ac4f60
commit 0b0f1afe6c
1 changed files with 17 additions and 6 deletions
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23
drivers/gpu/drm/virtio/virtgpu_plane.c
View file

@ -174,12 +174,23 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
plane->state->src_h >> 16,
plane->state->src_x >> 16,
plane->state->src_y >> 16);
virtio_gpu_cmd_set_scanout(vgdev, output->index,
bo->hw_res_handle,
plane->state->src_w >> 16,
plane->state->src_h >> 16,
plane->state->src_x >> 16,
plane->state->src_y >> 16);
if (bo->host3d_blob || bo->guest_blob) {
virtio_gpu_cmd_set_scanout_blob
(vgdev, output->index, bo,
plane->state->fb,
plane->state->src_w >> 16,
plane->state->src_h >> 16,
plane->state->src_x >> 16,
plane->state->src_y >> 16);
} else {
virtio_gpu_cmd_set_scanout(vgdev, output->index,
bo->hw_res_handle,
plane->state->src_w >> 16,
plane->state->src_h >> 16,
plane->state->src_x >> 16,
plane->state->src_y >> 16);
}
}
virtio_gpu_cmd_resource_flush(vgdev, bo->hw_res_handle,