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v6.8
 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 */
v5.9
 
 1/*
 2 * Copyright(c) 2015-2017 Intel Corporation.
 3 *
 4 * This file is provided under a dual BSD/GPLv2 license.  When using or
 5 * redistributing this file, you may do so under either license.
 6 *
 7 * GPL LICENSE SUMMARY
 8 *
 9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of version 2 of the GNU General Public License as
11 * published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * General Public License for more details.
17 *
18 * BSD LICENSE
19 *
20 * Redistribution and use in source and binary forms, with or without
21 * modification, are permitted provided that the following conditions
22 * are met:
23 *
24 *  - Redistributions of source code must retain the above copyright
25 *    notice, this list of conditions and the following disclaimer.
26 *  - Redistributions in binary form must reproduce the above copyright
27 *    notice, this list of conditions and the following disclaimer in
28 *    the documentation and/or other materials provided with the
29 *    distribution.
30 *  - Neither the name of Intel Corporation nor the names of its
31 *    contributors may be used to endorse or promote products derived
32 *    from this software without specific prior written permission.
33 *
34 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
35 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
36 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
37 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
38 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
39 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
40 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
41 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
42 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
43 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
44 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
45 *
46 */
 
47#ifndef _ASPM_H
48#define _ASPM_H
49
50#include "hfi.h"
51
52extern uint aspm_mode;
53
54enum aspm_mode {
55	ASPM_MODE_DISABLED = 0,	/* ASPM always disabled, performance mode */
56	ASPM_MODE_ENABLED = 1,	/* ASPM always enabled, power saving mode */
57	ASPM_MODE_DYNAMIC = 2,	/* ASPM enabled/disabled dynamically */
58};
59
60void aspm_init(struct hfi1_devdata *dd);
61void aspm_exit(struct hfi1_devdata *dd);
62void aspm_hw_disable_l1(struct hfi1_devdata *dd);
63void __aspm_ctx_disable(struct hfi1_ctxtdata *rcd);
64void aspm_disable_all(struct hfi1_devdata *dd);
65void aspm_enable_all(struct hfi1_devdata *dd);
66
67static inline void aspm_ctx_disable(struct hfi1_ctxtdata *rcd)
68{
69	/* Quickest exit for minimum impact */
70	if (likely(!rcd->aspm_intr_supported))
71		return;
72
73	__aspm_ctx_disable(rcd);
74}
75
76#endif /* _ASPM_H */