xref: /linux/drivers/gpu/drm/i915/gt/intel_gt_pm.h (revision e5a52fd2b8cdb700b3c07b030e050a49ef3156b9) 
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 static inline bool intel_gt_pm_is_awake(const struct intel_gt *gt)
16 {
17 	return intel_wakeref_is_active(&gt->wakeref);
18 }
19 
20 static inline void intel_gt_pm_get(struct intel_gt *gt)
21 {
22 	intel_wakeref_get(&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 void intel_gt_pm_put_async(struct intel_gt *gt)
41 {
42 	intel_wakeref_put_async(&gt->wakeref);
43 }
44 
45 static inline int intel_gt_pm_wait_for_idle(struct intel_gt *gt)
46 {
47 	return intel_wakeref_wait_for_idle(&gt->wakeref);
48 }
49 
50 void intel_gt_pm_init_early(struct intel_gt *gt);
51 void intel_gt_pm_init(struct intel_gt *gt);
52 void intel_gt_pm_fini(struct intel_gt *gt);
53 
54 void intel_gt_suspend_prepare(struct intel_gt *gt);
55 void intel_gt_suspend_late(struct intel_gt *gt);
56 int intel_gt_resume(struct intel_gt *gt);
57 
58 void intel_gt_runtime_suspend(struct intel_gt *gt);
59 int intel_gt_runtime_resume(struct intel_gt *gt);
60 
61 static inline bool is_mock_gt(const struct intel_gt *gt)
62 {
63 	return I915_SELFTEST_ONLY(gt->awake == -ENODEV);
64 }
65 
66 #endif /* INTEL_GT_PM_H */
67