Commit 6198770a authored by Anthoine Bourgeois's avatar Anthoine Bourgeois Committed by Gerd Hoffmann
Browse files

drm/virtio: implement context init: probe for feature 



Let's probe for VIRTIO_GPU_F_CONTEXT_INIT.

Create a new DRM_INFO(..) line since the current one is getting
too long.

Signed-off-by: default avatarAnthoine Bourgeois <anthoine.bourgeois@gmail.com>
Acked-by: default avatarLingfeng Yang <lfy@google.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20210921232024.817-5-gurchetansingh@chromium.org


Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 1925d6a7

drivers/gpu/drm/virtio/virtgpu_debugfs.c

+1 −0
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ static int virtio_gpu_features(struct seq_file *m, void *data) 
			    vgdev->has_resource_assign_uuid);



	virtio_gpu_add_bool(m, "blob resources", vgdev->has_resource_blob);

	virtio_gpu_add_bool(m, "context init", vgdev->has_context_init);

	virtio_gpu_add_int(m, "cap sets", vgdev->num_capsets);

	virtio_gpu_add_int(m, "scanouts", vgdev->num_scanouts);

	if (vgdev->host_visible_region.len) {

drivers/gpu/drm/virtio/virtgpu_drv.c

+1 −0
Original line number Diff line number Diff line
@@ -172,6 +172,7 @@ static unsigned int features[] = { 
	VIRTIO_GPU_F_EDID,

	VIRTIO_GPU_F_RESOURCE_UUID,

	VIRTIO_GPU_F_RESOURCE_BLOB,

	VIRTIO_GPU_F_CONTEXT_INIT,

};

static struct virtio_driver virtio_gpu_driver = {

	.feature_table = features,

drivers/gpu/drm/virtio/virtgpu_drv.h

+1 −0
Original line number Diff line number Diff line
@@ -236,6 +236,7 @@ struct virtio_gpu_device { 
	bool has_resource_assign_uuid;

	bool has_resource_blob;

	bool has_host_visible;

	bool has_context_init;

	struct virtio_shm_region host_visible_region;

	struct drm_mm host_visible_mm;

drivers/gpu/drm/virtio/virtgpu_kms.c

+7 −1
Original line number Diff line number Diff line
@@ -191,13 +191,19 @@ int virtio_gpu_init(struct drm_device *dev) 
			    (unsigned long)vgdev->host_visible_region.addr,

			    (unsigned long)vgdev->host_visible_region.len);

	}

	if (virtio_has_feature(vgdev->vdev, VIRTIO_GPU_F_CONTEXT_INIT)) {

		vgdev->has_context_init = true;

	}



	DRM_INFO("features: %cvirgl %cedid %cresource_blob %chost_visible\n",

	DRM_INFO("features: %cvirgl %cedid %cresource_blob %chost_visible",

		 vgdev->has_virgl_3d    ? '+' : '-',

		 vgdev->has_edid        ? '+' : '-',

		 vgdev->has_resource_blob ? '+' : '-',

		 vgdev->has_host_visible ? '+' : '-');



	DRM_INFO("features: %ccontext_init\n",

		 vgdev->has_context_init ? '+' : '-');



	ret = virtio_find_vqs(vgdev->vdev, 2, vqs, callbacks, names, NULL);

	if (ret) {

		DRM_ERROR("failed to find virt queues\n");