506 	struct intel_vgpu_shadow_bb *bb;  in prepare_shadow_batch_buffer()  local
509 	list_for_each_entry(bb, &workload->shadow_bb, list) {  in prepare_shadow_batch_buffer()
517 		if (bb->bb_offset)  in prepare_shadow_batch_buffer()
518 			bb->bb_start_cmd_va = workload->shadow_ring_buffer_va  in prepare_shadow_batch_buffer()
519 				+ bb->bb_offset;  in prepare_shadow_batch_buffer()
522 		 * For non-priv bb, scan&shadow is only for  in prepare_shadow_batch_buffer()
523 		 * debugging purpose, so the content of shadow bb  in prepare_shadow_batch_buffer()
524 		 * is the same as original bb. Therefore,  in prepare_shadow_batch_buffer()
525 		 * here, rather than switch to shadow bb's gma  in prepare_shadow_batch_buffer()
527 		 * gma address, and send original bb to hardware  in prepare_shadow_batch_buffer()
530 		if (!bb->ppgtt) {  in prepare_shadow_batch_buffer()
531 			bb->vma = i915_gem_object_ggtt_pin(bb->obj,  in prepare_shadow_batch_buffer()
533 			if (IS_ERR(bb->vma)) {  in prepare_shadow_batch_buffer()
534 				ret = PTR_ERR(bb->vma);  in prepare_shadow_batch_buffer()
539 			bb->bb_start_cmd_va[1] = i915_ggtt_offset(bb->vma);  in prepare_shadow_batch_buffer()
541 				bb->bb_start_cmd_va[2] = 0;  in prepare_shadow_batch_buffer()
543 			ret = i915_vma_move_to_active(bb->vma,  in prepare_shadow_batch_buffer()
550 		/* No one is going to touch shadow bb from now on. */  in prepare_shadow_batch_buffer()
551 		i915_gem_object_flush_map(bb->obj);  in prepare_shadow_batch_buffer()
612 	struct intel_vgpu_shadow_bb *bb, *pos;  in release_shadow_batch_buffer()  local
617 	bb = list_first_entry(&workload->shadow_bb,  in release_shadow_batch_buffer()
620 	list_for_each_entry_safe(bb, pos, &workload->shadow_bb, list) {  in release_shadow_batch_buffer()
621 		if (bb->obj) {  in release_shadow_batch_buffer()
622 			if (bb->va && !IS_ERR(bb->va))  in release_shadow_batch_buffer()
623 				i915_gem_object_unpin_map(bb->obj);  in release_shadow_batch_buffer()
625 			if (bb->vma && !IS_ERR(bb->vma))  in release_shadow_batch_buffer()
626 				i915_vma_unpin(bb->vma);  in release_shadow_batch_buffer()
628 			i915_gem_object_put(bb->obj);  in release_shadow_batch_buffer()
630 		list_del(&bb->list);  in release_shadow_batch_buffer()
631 		kfree(bb);  in release_shadow_batch_buffer()