static void virtio_gpu_create_context_locked(struct virtio_gpu_device *vgdev,
struct virtio_gpu_fpriv *vfpriv)
{
- char dbgname[TASK_COMM_LEN];
+ if (vfpriv->explicit_debug_name) {
+ virtio_gpu_cmd_context_create(vgdev, vfpriv->ctx_id,
+ vfpriv->context_init,
+ strlen(vfpriv->debug_name),
+ vfpriv->debug_name);
+ } else {
+ char dbgname[TASK_COMM_LEN];
- get_task_comm(dbgname, current);
- virtio_gpu_cmd_context_create(vgdev, vfpriv->ctx_id,
- vfpriv->context_init, strlen(dbgname),
- dbgname);
+ get_task_comm(dbgname, current);
+ virtio_gpu_cmd_context_create(vgdev, vfpriv->ctx_id,
+ vfpriv->context_init, strlen(dbgname),
+ dbgname);
+ }
vfpriv->context_created = true;
}
case VIRTGPU_PARAM_SUPPORTED_CAPSET_IDs:
value = vgdev->capset_id_mask;
break;
+ case VIRTGPU_PARAM_EXPLICIT_DEBUG_NAME:
+ value = vgdev->has_context_init ? 1 : 0;
+ break;
default:
return -EINVAL;
}
return -EINVAL;
/* Number of unique parameters supported at this time. */
- if (num_params > 3)
+ if (num_params > 4)
return -EINVAL;
ctx_set_params = memdup_user(u64_to_user_ptr(args->ctx_set_params),
vfpriv->ring_idx_mask = value;
break;
+ case VIRTGPU_CONTEXT_PARAM_DEBUG_NAME:
+ if (vfpriv->explicit_debug_name) {
+ ret = -EINVAL;
+ goto out_unlock;
+ }
+
+ ret = strncpy_from_user(vfpriv->debug_name,
+ u64_to_user_ptr(value),
+ DEBUG_NAME_MAX_LEN - 1);
+ if (ret < 0)
+ goto out_unlock;
+
+ vfpriv->explicit_debug_name = true;
+ break;
default:
ret = -EINVAL;
goto out_unlock;
#define VIRTGPU_PARAM_CROSS_DEVICE 5 /* Cross virtio-device resource sharing */
#define VIRTGPU_PARAM_CONTEXT_INIT 6 /* DRM_VIRTGPU_CONTEXT_INIT */
#define VIRTGPU_PARAM_SUPPORTED_CAPSET_IDs 7 /* Bitmask of supported capability set ids */
+#define VIRTGPU_PARAM_EXPLICIT_DEBUG_NAME 8 /* Ability to set debug name from userspace */
struct drm_virtgpu_getparam {
__u64 param;
#define VIRTGPU_CONTEXT_PARAM_CAPSET_ID 0x0001
#define VIRTGPU_CONTEXT_PARAM_NUM_RINGS 0x0002
#define VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK 0x0003
+#define VIRTGPU_CONTEXT_PARAM_DEBUG_NAME 0x0004
struct drm_virtgpu_context_set_param {
__u64 param;
__u64 value;