drm/amdgpu/mes: implement removing mes gang

	mutex_unlock(&adev->mes.mutex);

	return r;

}

int amdgpu_mes_remove_gang(struct amdgpu_device *adev, int gang_id)

{

	struct amdgpu_mes_gang *gang;

	mutex_lock(&adev->mes.mutex);

	gang = idr_find(&adev->mes.gang_id_idr, gang_id);

	if (!gang) {

		DRM_ERROR("gang id %d doesn't exist\n", gang_id);

		mutex_unlock(&adev->mes.mutex);

		return -EINVAL;

	}

	if (!list_empty(&gang->queue_list)) {

		DRM_ERROR("queue list is not empty\n");

		mutex_unlock(&adev->mes.mutex);

		return -EBUSY;

	}

	idr_remove(&adev->mes.gang_id_idr, gang->gang_id);

	amdgpu_bo_free_kernel(&gang->gang_ctx_bo,

			      &gang->gang_ctx_gpu_addr,

			      &gang->gang_ctx_cpu_ptr);

	list_del(&gang->list);

	kfree(gang);

	mutex_unlock(&adev->mes.mutex);

	return 0;

}

int amdgpu_mes_add_gang(struct amdgpu_device *adev, int pasid,

			struct amdgpu_mes_gang_properties *gprops,

			int *gang_id);

int amdgpu_mes_remove_gang(struct amdgpu_device *adev, int gang_id);

#endif /* __AMDGPU_MES_H__ */