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62 lines
2.1 KiB
62 lines
2.1 KiB
/* |
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* Copyright (c) 2006, 2007, 2008 QLogic Corporation. All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenIB.org BSD license below: |
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* |
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* Redistribution and use in source and binary forms, with or |
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* without modification, are permitted provided that the following |
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* conditions are met: |
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* |
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* - Redistributions of source code must retain the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer. |
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* |
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* - Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following |
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* disclaimer in the documentation and/or other materials |
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* provided with the distribution. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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/* |
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* This file is conditionally built on PowerPC only. Otherwise weak symbol |
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* versions of the functions exported from here are used. |
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*/ |
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#include "qib.h" |
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/** |
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* qib_enable_wc - enable write combining for MMIO writes to the device |
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* @dd: qlogic_ib device |
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* |
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* Nothing to do on PowerPC, so just return without error. |
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*/ |
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int qib_enable_wc(struct qib_devdata *dd) |
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{ |
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return 0; |
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} |
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/** |
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* qib_unordered_wc - indicate whether write combining is unordered |
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* |
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* Because our performance depends on our ability to do write |
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* combining mmio writes in the most efficient way, we need to |
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* know if we are on a processor that may reorder stores when |
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* write combining. |
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*/ |
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int qib_unordered_wc(void) |
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{ |
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return 1; |
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}
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