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