summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/xe/xe_pm.h
blob: 18b0613fe57b98255f13bd9027657cbad1fabaf2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2022 Intel Corporation
 */

#ifndef _XE_PM_H_
#define _XE_PM_H_

#include <linux/pm_runtime.h>

/*
 * TODO: Threshold = 0 will block D3Cold.
 *       Before we can move this to a higher value (like 300), we need to:
 *           1. rewrite the VRAM save / restore to avoid buffer object locks
 */
#define DEFAULT_VRAM_THRESHOLD 0 /* in MB */

struct xe_device;

int xe_pm_suspend(struct xe_device *xe);
int xe_pm_resume(struct xe_device *xe);

int xe_pm_init_early(struct xe_device *xe);
int xe_pm_init(struct xe_device *xe);
void xe_pm_runtime_fini(struct xe_device *xe);
bool xe_pm_runtime_suspended(struct xe_device *xe);
int xe_pm_runtime_suspend(struct xe_device *xe);
int xe_pm_runtime_resume(struct xe_device *xe);
void xe_pm_runtime_get(struct xe_device *xe);
int xe_pm_runtime_get_ioctl(struct xe_device *xe);
void xe_pm_runtime_put(struct xe_device *xe);
int xe_pm_runtime_get_if_active(struct xe_device *xe);
bool xe_pm_runtime_get_if_in_use(struct xe_device *xe);
void xe_pm_runtime_get_noresume(struct xe_device *xe);
bool xe_pm_runtime_resume_and_get(struct xe_device *xe);
void xe_pm_assert_unbounded_bridge(struct xe_device *xe);
int xe_pm_set_vram_threshold(struct xe_device *xe, u32 threshold);
void xe_pm_d3cold_allowed_toggle(struct xe_device *xe);
struct task_struct *xe_pm_read_callback_task(struct xe_device *xe);

#endif