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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: Anthoine Bourgeois <anthoine.bourgeois@gmail.com>
Acked-by: Lingfeng Yang <lfy@google.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20210921232024.817-5-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Anthoine Bourgeois 2021-09-21 16:20:16 -07:00 committed by Gerd Hoffmann
parent 1925d6a7e0
commit 6198770a1f
4 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/virtio/virtgpu_debugfs.c
View File

@ -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) {

1
drivers/gpu/drm/virtio/virtgpu_drv.c
View File

@ -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,

1
drivers/gpu/drm/virtio/virtgpu_drv.h
View File

@ -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;

8
drivers/gpu/drm/virtio/virtgpu_kms.c
View File

@ -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");