LXR linux/include/linux/amd-iommu.h

   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
  27extern int amd_iommu_detect(void);
  28
  29#else
  30
  31static inline int amd_iommu_detect(void) { return -ENODEV; }
  32
  33#endif
  34
  35#endif /* _ASM_X86_AMD_IOMMU_H */
  36