diff options
Diffstat (limited to 'drivers/gpu/drm/xe/xe_pm.h')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_pm.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_pm.h b/drivers/gpu/drm/xe/xe_pm.h new file mode 100644 index 0000000000..6b9031f7af --- /dev/null +++ b/drivers/gpu/drm/xe/xe_pm.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2022 Intel Corporation + */ + +#ifndef _XE_PM_H_ +#define _XE_PM_H_ + +#include <linux/pm_runtime.h> + +/* + * TODO: Threshold = 0 will block D3Cold. + * Before we can move this to a higher value (like 300), we need to: + * 1. rewrite the VRAM save / restore to avoid buffer object locks + */ +#define DEFAULT_VRAM_THRESHOLD 0 /* in MB */ + +struct xe_device; + +int xe_pm_suspend(struct xe_device *xe); +int xe_pm_resume(struct xe_device *xe); + +void xe_pm_init(struct xe_device *xe); +void xe_pm_runtime_fini(struct xe_device *xe); +int xe_pm_runtime_suspend(struct xe_device *xe); +int xe_pm_runtime_resume(struct xe_device *xe); +int xe_pm_runtime_get(struct xe_device *xe); +int xe_pm_runtime_put(struct xe_device *xe); +int xe_pm_runtime_get_if_active(struct xe_device *xe); +void xe_pm_assert_unbounded_bridge(struct xe_device *xe); +int xe_pm_set_vram_threshold(struct xe_device *xe, u32 threshold); +void xe_pm_d3cold_allowed_toggle(struct xe_device *xe); +struct task_struct *xe_pm_read_callback_task(struct xe_device *xe); + +#endif |