1 /* SPDX-License-Identifier: MIT */ 2 /* 3 * Copyright © 2019 Intel Corporation 4 */ 5 6 #ifndef INTEL_GT_PM_H 7 #define INTEL_GT_PM_H 8 9 #include <linux/types.h> 10 11 #include "intel_gt_types.h" 12 #include "intel_wakeref.h" 13 14 static inline bool intel_gt_pm_is_awake(const struct intel_gt *gt) 15 { 16 return intel_wakeref_is_active(>->wakeref); 17 } 18 19 static inline void intel_gt_pm_get(struct intel_gt *gt) 20 { 21 intel_wakeref_get(>->wakeref); 22 } 23 24 static inline void __intel_gt_pm_get(struct intel_gt *gt) 25 { 26 __intel_wakeref_get(>->wakeref); 27 } 28 29 static inline bool intel_gt_pm_get_if_awake(struct intel_gt *gt) 30 { 31 return intel_wakeref_get_if_active(>->wakeref); 32 } 33 34 static inline void intel_gt_pm_put(struct intel_gt *gt) 35 { 36 intel_wakeref_put(>->wakeref); 37 } 38 39 static inline void intel_gt_pm_put_async(struct intel_gt *gt) 40 { 41 intel_wakeref_put_async(>->wakeref); 42 } 43 44 #define with_intel_gt_pm(gt, tmp) \ 45 for (tmp = 1, intel_gt_pm_get(gt); tmp; \ 46 intel_gt_pm_put(gt), tmp = 0) 47 48 static inline int intel_gt_pm_wait_for_idle(struct intel_gt *gt) 49 { 50 return intel_wakeref_wait_for_idle(>->wakeref); 51 } 52 53 void intel_gt_pm_init_early(struct intel_gt *gt); 54 void intel_gt_pm_init(struct intel_gt *gt); 55 void intel_gt_pm_fini(struct intel_gt *gt); 56 57 void intel_gt_suspend_prepare(struct intel_gt *gt); 58 void intel_gt_suspend_late(struct intel_gt *gt); 59 int intel_gt_resume(struct intel_gt *gt); 60 61 void intel_gt_runtime_suspend(struct intel_gt *gt); 62 int intel_gt_runtime_resume(struct intel_gt *gt); 63 64 ktime_t intel_gt_get_awake_time(const struct intel_gt *gt); 65 66 static inline bool is_mock_gt(const struct intel_gt *gt) 67 { 68 return I915_SELFTEST_ONLY(gt->awake == -ENODEV); 69 } 70 71 #endif /* INTEL_GT_PM_H */ 72