77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
/*
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* Copyright(c) 2015-2017 Intel Corporation.
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* BSD LICENSE
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef _ASPM_H
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#define _ASPM_H
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#include "hfi.h"
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extern uint aspm_mode;
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enum aspm_mode {
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ASPM_MODE_DISABLED = 0, /* ASPM always disabled, performance mode */
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ASPM_MODE_ENABLED = 1, /* ASPM always enabled, power saving mode */
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ASPM_MODE_DYNAMIC = 2, /* ASPM enabled/disabled dynamically */
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};
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void aspm_init(struct hfi1_devdata *dd);
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void aspm_exit(struct hfi1_devdata *dd);
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void aspm_hw_disable_l1(struct hfi1_devdata *dd);
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void __aspm_ctx_disable(struct hfi1_ctxtdata *rcd);
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void aspm_disable_all(struct hfi1_devdata *dd);
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void aspm_enable_all(struct hfi1_devdata *dd);
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static inline void aspm_ctx_disable(struct hfi1_ctxtdata *rcd)
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{
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/* Quickest exit for minimum impact */
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if (likely(!rcd->aspm_intr_supported))
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return;
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__aspm_ctx_disable(rcd);
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}
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#endif /* _ASPM_H */
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