1 /*
2 * Copyright (C) 2007-2010 Advanced Micro Devices, Inc.
3 * Author: Joerg Roedel <joerg.roedel@amd.com>
4 * Leo Duran <leo.duran@amd.com>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 #ifndef _ASM_X86_AMD_IOMMU_H
21 #define _ASM_X86_AMD_IOMMU_H
22
23 #include <linux/irqreturn.h>
24
25 #ifdef CONFIG_AMD_IOMMU
26
27 extern int amd_iommu_detect(void);
28
29 #else
30
amd_iommu_detect(void)31 static inline int amd_iommu_detect(void) { return -ENODEV; }
32
33 #endif
34
35 #endif /* _ASM_X86_AMD_IOMMU_H */
36