2 * Copyright (c) 2006-2007 Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 #include <linux/pci.h>
36 #if defined(__i386__) || defined(__x86_64__)
38 pgprot_t pgprot_wc(pgprot_t _prot)
40 return pgprot_writecombine(_prot);
43 int mlx4_wc_enabled(void)
48 #elif defined(CONFIG_PPC64)
50 pgprot_t pgprot_wc(pgprot_t _prot)
52 return __pgprot((pgprot_val(_prot) | _PAGE_NO_CACHE) &
53 ~(pgprot_t)_PAGE_GUARDED);
56 int mlx4_wc_enabled(void)
61 #else /* !(defined(__i386__) || defined(__x86_64__)) */
63 pgprot_t pgprot_wc(pgprot_t _prot)
65 return pgprot_noncached(_prot);
68 int mlx4_wc_enabled(void)