1/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 2/*
 3 * Copyright(c) 2015-2017 Intel Corporation.
 4 */
 5
 6#ifndef _ASPM_H
 7#define _ASPM_H
 8
 9#include "hfi.h"
10
11extern uint aspm_mode;
12
13enum aspm_mode {
14	ASPM_MODE_DISABLED = 0,	/* ASPM always disabled, performance mode */
15	ASPM_MODE_ENABLED = 1,	/* ASPM always enabled, power saving mode */
16	ASPM_MODE_DYNAMIC = 2,	/* ASPM enabled/disabled dynamically */
17};
18
19void aspm_init(struct hfi1_devdata *dd);
20void aspm_exit(struct hfi1_devdata *dd);
21void aspm_hw_disable_l1(struct hfi1_devdata *dd);
22void __aspm_ctx_disable(struct hfi1_ctxtdata *rcd);
23void aspm_disable_all(struct hfi1_devdata *dd);
24void aspm_enable_all(struct hfi1_devdata *dd);
25
26static inline void aspm_ctx_disable(struct hfi1_ctxtdata *rcd)
27{
28	/* Quickest exit for minimum impact */
29	if (likely(!rcd->aspm_intr_supported))
30		return;
31
32	__aspm_ctx_disable(rcd);
33}
34
35#endif /* _ASPM_H */