| /* |
| * 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 */ |
