1/* SPDX-License-Identifier: MIT */ 2/* 3 * Copyright �� 2022 Intel Corporation 4 */ 5 6#ifndef _XE_PM_H_ 7#define _XE_PM_H_ 8 9#include <linux/pm_runtime.h> 10 11/* 12 * TODO: Threshold = 0 will block D3Cold. 13 * Before we can move this to a higher value (like 300), we need to: 14 * 1. rewrite the VRAM save / restore to avoid buffer object locks 15 */ 16#define DEFAULT_VRAM_THRESHOLD 0 /* in MB */ 17 18struct xe_device; 19 20int xe_pm_suspend(struct xe_device *xe); 21int xe_pm_resume(struct xe_device *xe); 22 23void xe_pm_init_early(struct xe_device *xe); 24void xe_pm_init(struct xe_device *xe); 25void xe_pm_runtime_fini(struct xe_device *xe); 26int xe_pm_runtime_suspend(struct xe_device *xe); 27int xe_pm_runtime_resume(struct xe_device *xe); 28int xe_pm_runtime_get(struct xe_device *xe); 29int xe_pm_runtime_put(struct xe_device *xe); 30int xe_pm_runtime_get_if_active(struct xe_device *xe); 31void xe_pm_assert_unbounded_bridge(struct xe_device *xe); 32int xe_pm_set_vram_threshold(struct xe_device *xe, u32 threshold); 33void xe_pm_d3cold_allowed_toggle(struct xe_device *xe); 34struct task_struct *xe_pm_read_callback_task(struct xe_device *xe); 35 36#endif 37