93 lines
2.2 KiB
C
93 lines
2.2 KiB
C
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/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2019 Intel Corporation
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*/
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#ifndef INTEL_GT_PM_H
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#define INTEL_GT_PM_H
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#include <linux/types.h>
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#include "intel_gt_types.h"
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#include "intel_wakeref.h"
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static inline bool intel_gt_pm_is_awake(const struct intel_gt *gt)
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{
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return intel_wakeref_is_active(>->wakeref);
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}
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static inline void intel_gt_pm_get(struct intel_gt *gt)
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{
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intel_wakeref_get(>->wakeref);
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}
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static inline void __intel_gt_pm_get(struct intel_gt *gt)
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{
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__intel_wakeref_get(>->wakeref);
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}
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static inline bool intel_gt_pm_get_if_awake(struct intel_gt *gt)
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{
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return intel_wakeref_get_if_active(>->wakeref);
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}
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static inline void intel_gt_pm_might_get(struct intel_gt *gt)
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{
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intel_wakeref_might_get(>->wakeref);
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}
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static inline void intel_gt_pm_put(struct intel_gt *gt)
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{
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intel_wakeref_put(>->wakeref);
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}
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static inline void intel_gt_pm_put_async(struct intel_gt *gt)
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{
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intel_wakeref_put_async(>->wakeref);
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}
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static inline void intel_gt_pm_might_put(struct intel_gt *gt)
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{
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intel_wakeref_might_put(>->wakeref);
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}
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#define with_intel_gt_pm(gt, tmp) \
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for (tmp = 1, intel_gt_pm_get(gt); tmp; \
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intel_gt_pm_put(gt), tmp = 0)
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/**
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* with_intel_gt_pm_if_awake - if GT is PM awake, get a reference to prevent
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* it to sleep, run some code and then asynchrously put the reference
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* away.
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*
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* @gt: pointer to the gt
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* @wf: pointer to a temporary wakeref.
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*/
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#define with_intel_gt_pm_if_awake(gt, wf) \
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for (wf = intel_gt_pm_get_if_awake(gt); wf; intel_gt_pm_put_async(gt), wf = 0)
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static inline int intel_gt_pm_wait_for_idle(struct intel_gt *gt)
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{
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return intel_wakeref_wait_for_idle(>->wakeref);
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}
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void intel_gt_pm_init_early(struct intel_gt *gt);
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void intel_gt_pm_init(struct intel_gt *gt);
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void intel_gt_pm_fini(struct intel_gt *gt);
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void intel_gt_suspend_prepare(struct intel_gt *gt);
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void intel_gt_suspend_late(struct intel_gt *gt);
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int intel_gt_resume(struct intel_gt *gt);
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void intel_gt_runtime_suspend(struct intel_gt *gt);
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int intel_gt_runtime_resume(struct intel_gt *gt);
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ktime_t intel_gt_get_awake_time(const struct intel_gt *gt);
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static inline bool is_mock_gt(const struct intel_gt *gt)
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{
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return I915_SELFTEST_ONLY(gt->awake == -ENODEV);
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}
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#endif /* INTEL_GT_PM_H */
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