e07aa91316
And let's use the VRAM threshold to keep d3cold temporarily disabled. With this we have the ability to run D3Cold experiments just by touching the vram_d3cold_threshold sysfs entry. Cc: Anshuman Gupta <anshuman.gupta@intel.com> Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2022 Intel Corporation
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*/
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#ifndef _XE_PM_H_
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#define _XE_PM_H_
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#include <linux/pm_runtime.h>
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/*
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* TODO: Threshold = 0 will block D3Cold.
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* Before we can move this to a higher value (like 300), we need to:
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* 1. rewrite the VRAM save / restore to avoid buffer object locks
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*/
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#define DEFAULT_VRAM_THRESHOLD 0 /* in MB */
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struct xe_device;
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int xe_pm_suspend(struct xe_device *xe);
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int xe_pm_resume(struct xe_device *xe);
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void xe_pm_init(struct xe_device *xe);
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void xe_pm_runtime_fini(struct xe_device *xe);
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int xe_pm_runtime_suspend(struct xe_device *xe);
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int xe_pm_runtime_resume(struct xe_device *xe);
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int xe_pm_runtime_get(struct xe_device *xe);
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int xe_pm_runtime_put(struct xe_device *xe);
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int xe_pm_runtime_get_if_active(struct xe_device *xe);
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void xe_pm_assert_unbounded_bridge(struct xe_device *xe);
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int xe_pm_set_vram_threshold(struct xe_device *xe, u32 threshold);
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void xe_pm_d3cold_allowed_toggle(struct xe_device *xe);
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struct task_struct *xe_pm_read_callback_task(struct xe_device *xe);
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#endif
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