drm/amdgpu: drop bo_list_clone when no scheduler

bo_list_clone() will take a lot of time when bo_list hold too much
elements, like above 7000
Signed-off-by: Monk.Liu <monk.liu@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Jammy Zhou <jammy.zhou@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

@@ -186,6 +186,9 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data)
 		goto out;
 	}
 	bo_list = amdgpu_bo_list_get(fpriv, cs->in.bo_list_handle);
+	if (!amdgpu_enable_scheduler)
+		p->bo_list = bo_list;
+	else {
 		if (bo_list && !bo_list->has_userptr) {
 			p->bo_list = amdgpu_bo_list_clone(bo_list);
 			amdgpu_bo_list_put(bo_list);
@@ -195,6 +198,7 @@ int amdgpu_cs_parser_init(struct amdgpu_cs_parser *p, void *data)
 			p->bo_list = bo_list;
 		else
 			p->bo_list = NULL;
+	}
 
 	/* get chunks */
 	INIT_LIST_HEAD(&p->validated);
@@ -495,7 +499,7 @@ static void amdgpu_cs_parser_fini_late(struct amdgpu_cs_parser *parser)
 	if (parser->ctx)
 		amdgpu_ctx_put(parser->ctx);
 	if (parser->bo_list) {
-		if (!parser->bo_list->has_userptr)
+		if (amdgpu_enable_scheduler && !parser->bo_list->has_userptr)
 			amdgpu_bo_list_free(parser->bo_list);
 		else
 			amdgpu_bo_list_put(parser->bo_list);