/*

   * Copyright (C) 2007-2010 Advanced Micro Devices, Inc.

   * Author: Joerg Roedel <joerg.roedel@amd.com>
   *         Leo Duran <leo.duran@amd.com>
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 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.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
   */

  #ifndef _ASM_X86_AMD_IOMMU_H
  #define _ASM_X86_AMD_IOMMU_H

  #include <linux/irqreturn.h>

  
  #ifdef CONFIG_AMD_IOMMU

  extern int amd_iommu_detect(void);

  #else

  static inline int amd_iommu_detect(void) { return -ENODEV; }

  #endif

  #endif /* _ASM_X86_AMD_IOMMU_H */