[PATCH 13/24] drm/virtio: implement blob resources: probe for the feature.

[Gurchetan Singh <gurchetansingh@xxxxxxxxxxxx>]

From: Gerd Hoffmann <kraxel@xxxxxxxxxx>

Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Signed-off-by: Gurchetan Singh <gurchetansingh@xxxxxxxxxxxx>
Acked-by: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>
---
 drivers/gpu/drm/virtio/virtgpu_debugfs.c |  1 +
 drivers/gpu/drm/virtio/virtgpu_drv.c     |  1 +
 drivers/gpu/drm/virtio/virtgpu_drv.h     |  1 +
 drivers/gpu/drm/virtio/virtgpu_kms.c     | 10 +++++++---
 4 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_debugfs.c b/drivers/gpu/drm/virtio/virtgpu_debugfs.c
index 3221520f61f0..e99d1c3c0a66 100644
--- a/drivers/gpu/drm/virtio/virtgpu_debugfs.c
+++ b/drivers/gpu/drm/virtio/virtgpu_debugfs.c
@@ -48,6 +48,7 @@ static int virtio_gpu_features(struct seq_file *m, void *data)
 	virtio_add_bool(m, "virgl", vgdev->has_virgl_3d);
 	virtio_add_bool(m, "edid", vgdev->has_edid);
 	virtio_add_bool(m, "indirect", vgdev->has_indirect);
+	virtio_add_bool(m, "blob resources", vgdev->has_resource_blob);
 	virtio_add_int(m, "cap sets", vgdev->num_capsets);
 	virtio_add_int(m, "scanouts", vgdev->num_scanouts);
 	return 0;
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c b/drivers/gpu/drm/virtio/virtgpu_drv.c
index b039f493bda9..3d04e428be14 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.c
@@ -166,6 +166,7 @@ static unsigned int features[] = {
 #endif
 	VIRTIO_GPU_F_EDID,
 	VIRTIO_GPU_F_RESOURCE_UUID,
+	VIRTIO_GPU_F_RESOURCE_BLOB,
 };
 static struct virtio_driver virtio_gpu_driver = {
 	.feature_table = features,
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index c74c38123ff6..a529727d6114 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -208,6 +208,7 @@ struct virtio_gpu_device {
 	bool has_edid;
 	bool has_indirect;
 	bool has_resource_assign_uuid;
+	bool has_resource_blob;
 
 	struct work_struct config_changed_work;
 
diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c
index bf060c69850f..4167673b97d6 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
@@ -150,10 +150,14 @@ int virtio_gpu_init(struct drm_device *dev)
 	if (virtio_has_feature(vgdev->vdev, VIRTIO_GPU_F_RESOURCE_UUID)) {
 		vgdev->has_resource_assign_uuid = true;
 	}
+	if (virtio_has_feature(vgdev->vdev, VIRTIO_GPU_F_RESOURCE_BLOB)) {
+		vgdev->has_resource_blob = true;
+	}
 
-	DRM_INFO("features: %cvirgl %cedid\n",
-		 vgdev->has_virgl_3d ? '+' : '-',
-		 vgdev->has_edid     ? '+' : '-');
+	DRM_INFO("features: %cvirgl %cedid %cresource_blob\n",
+		 vgdev->has_virgl_3d    ? '+' : '-',
+		 vgdev->has_edid        ? '+' : '-',
+		 vgdev->has_resource_blob ? '+' : '-');
 
 	ret = virtio_find_vqs(vgdev->vdev, 2, vqs, callbacks, names, NULL);
 	if (ret) {
-- 
2.24.1

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