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 #define DEFAULT_VRAM_THRESHOLD 300 /* in MB */ 12 13 struct xe_device; 14 15 int xe_pm_suspend(struct xe_device *xe); 16 int xe_pm_resume(struct xe_device *xe); 17 18 int xe_pm_init_early(struct xe_device *xe); 19 int xe_pm_init(struct xe_device *xe); 20 void xe_pm_runtime_fini(struct xe_device *xe); 21 bool xe_pm_runtime_suspended(struct xe_device *xe); 22 int xe_pm_runtime_suspend(struct xe_device *xe); 23 int xe_pm_runtime_resume(struct xe_device *xe); 24 void xe_pm_runtime_get(struct xe_device *xe); 25 int xe_pm_runtime_get_ioctl(struct xe_device *xe); 26 void xe_pm_runtime_put(struct xe_device *xe); 27 bool xe_pm_runtime_get_if_active(struct xe_device *xe); 28 bool xe_pm_runtime_get_if_in_use(struct xe_device *xe); 29 void xe_pm_runtime_get_noresume(struct xe_device *xe); 30 bool xe_pm_runtime_resume_and_get(struct xe_device *xe); 31 void xe_pm_assert_unbounded_bridge(struct xe_device *xe); 32 int xe_pm_set_vram_threshold(struct xe_device *xe, u32 threshold); 33 void xe_pm_d3cold_allowed_toggle(struct xe_device *xe); 34 struct task_struct *xe_pm_read_callback_task(struct xe_device *xe); 35 int xe_pm_module_init(void); 36 37 #endif 38