xref: /linux/drivers/gpu/drm/i915/gt/intel_gt_pm.h (revision 52338415) 
1 /*
2  * SPDX-License-Identifier: MIT
3  *
4  * Copyright © 2019 Intel Corporation
5  */
6 
7 #ifndef INTEL_GT_PM_H
8 #define INTEL_GT_PM_H
9 
10 #include <linux/types.h>
11 
12 #include "intel_gt_types.h"
13 #include "intel_wakeref.h"
14 
15 enum {
16 	INTEL_GT_UNPARK,
17 	INTEL_GT_PARK,
18 };
19 
20 static inline bool intel_gt_pm_is_awake(const struct intel_gt *gt)
21 {
22 	return intel_wakeref_is_active(&gt->wakeref);
23 }
24 
25 static inline void intel_gt_pm_get(struct intel_gt *gt)
26 {
27 	intel_wakeref_get(&gt->wakeref);
28 }
29 
30 static inline bool intel_gt_pm_get_if_awake(struct intel_gt *gt)
31 {
32 	return intel_wakeref_get_if_active(&gt->wakeref);
33 }
34 
35 static inline void intel_gt_pm_put(struct intel_gt *gt)
36 {
37 	intel_wakeref_put(&gt->wakeref);
38 }
39 
40 static inline int intel_gt_pm_wait_for_idle(struct intel_gt *gt)
41 {
42 	return intel_wakeref_wait_for_idle(&gt->wakeref);
43 }
44 
45 void intel_gt_pm_init_early(struct intel_gt *gt);
46 
47 void intel_gt_sanitize(struct intel_gt *gt, bool force);
48 int intel_gt_resume(struct intel_gt *gt);
49 void intel_gt_runtime_suspend(struct intel_gt *gt);
50 int intel_gt_runtime_resume(struct intel_gt *gt);
51 
52 #endif /* INTEL_GT_PM_H */
53