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drm/virtio: track created object state

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Track whenever the virtio_gpu_object is already created (i.e. host knows
about it) in a new variable.  Add checks to virtio_gpu_object_attach()
to do nothing on objects not created yet.

Make virtio_gpu_ttm_bo_destroy() use the new variable too, instead of
expecting hw_res_handle indicating the object state.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181019061847.18958-2-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2018-10-19 08:18:42 +02:00
parent 918d89bb1a
commit 23c897d72c
6 changed files with 16 additions and 5 deletions
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3
drivers/gpu/drm/virtio/virtgpu_drv.h
View File

@ -65,6 +65,7 @@ struct virtio_gpu_object {
struct ttm_placement placement;
struct ttm_buffer_object tbo;
struct ttm_bo_kmap_obj kmap;
bool created;
};
#define gem_to_virtio_gpu_obj(gobj) \
container_of((gobj), struct virtio_gpu_object, gem_base)
@ -263,6 +264,7 @@ void virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev,
uint32_t *resid);
void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t id);
void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
struct virtio_gpu_object *bo,
uint32_t resource_id,
uint32_t format,
uint32_t width,
@ -324,6 +326,7 @@ void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
struct virtio_gpu_fence **fence);
void
virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
struct virtio_gpu_object *bo,
struct virtio_gpu_resource_create_3d *rc_3d,
struct virtio_gpu_fence **fence);
void virtio_gpu_ctrl_ack(struct virtqueue *vq);

2
drivers/gpu/drm/virtio/virtgpu_fb.c
View File

@ -232,7 +232,7 @@ static int virtio_gpufb_create(struct drm_fb_helper *helper,
return PTR_ERR(obj);
virtio_gpu_resource_id_get(vgdev, &resid);
virtio_gpu_cmd_create_resource(vgdev, resid, format,
virtio_gpu_cmd_create_resource(vgdev, obj, resid, format,
mode_cmd.width, mode_cmd.height);
ret = virtio_gpu_object_kmap(obj);

3
drivers/gpu/drm/virtio/virtgpu_gem.c
View File

@ -103,8 +103,9 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
goto fail;
format = virtio_gpu_translate_format(DRM_FORMAT_HOST_XRGB8888);
obj = gem_to_virtio_gpu_obj(gobj);
virtio_gpu_resource_id_get(vgdev, &resid);
virtio_gpu_cmd_create_resource(vgdev, resid, format,
virtio_gpu_cmd_create_resource(vgdev, obj, resid, format,
args->width, args->height);
/* attach the object to the resource */

4
drivers/gpu/drm/virtio/virtgpu_ioctl.c
View File

@ -260,7 +260,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
obj = &qobj->gem_base;
if (!vgdev->has_virgl_3d) {
virtio_gpu_cmd_create_resource(vgdev, res_id, rc->format,
virtio_gpu_cmd_create_resource(vgdev, qobj, res_id, rc->format,
rc->width, rc->height);
ret = virtio_gpu_object_attach(vgdev, qobj, res_id, NULL);
@ -288,7 +288,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
rc_3d.nr_samples = cpu_to_le32(rc->nr_samples);
rc_3d.flags = cpu_to_le32(rc->flags);
virtio_gpu_cmd_resource_create_3d(vgdev, &rc_3d, NULL);
virtio_gpu_cmd_resource_create_3d(vgdev, qobj, &rc_3d, NULL);
ret = virtio_gpu_object_attach(vgdev, qobj, res_id, &fence);
if (ret) {
ttm_eu_backoff_reservation(&ticket, &validate_list);

2
drivers/gpu/drm/virtio/virtgpu_object.c
View File

@ -33,7 +33,7 @@ static void virtio_gpu_ttm_bo_destroy(struct ttm_buffer_object *tbo)
bo = container_of(tbo, struct virtio_gpu_object, tbo);
vgdev = (struct virtio_gpu_device *)bo->gem_base.dev->dev_private;
if (bo->hw_res_handle)
if (bo->created)
virtio_gpu_cmd_unref_resource(vgdev, bo->hw_res_handle);
if (bo->pages)
virtio_gpu_object_free_sg_table(bo);

7
drivers/gpu/drm/virtio/virtgpu_vq.c
View File

@ -388,6 +388,7 @@ static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev,
/* create a basic resource */
void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
struct virtio_gpu_object *bo,
uint32_t resource_id,
uint32_t format,
uint32_t width,
@ -406,6 +407,7 @@ void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
cmd_p->height = cpu_to_le32(height);
virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
bo->created = true;
}
void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
@ -772,6 +774,7 @@ void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
void
virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
struct virtio_gpu_object *bo,
struct virtio_gpu_resource_create_3d *rc_3d,
struct virtio_gpu_fence **fence)
{
@ -786,6 +789,7 @@ virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
cmd_p->hdr.flags = 0;
virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
bo->created = true;
}
void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
@ -869,6 +873,9 @@ int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
struct scatterlist *sg;
int si, nents;
if (!obj->created)
return 0;
if (!obj->pages) {
int ret;