Merge branch 'linus' into core/urgent

1 files changed, 35 insertions, 0 deletions

diff --git a/include/linux/amd-iommu.h b/include/linux/amd-iommu.h
new file mode 100644
index 00000000000..a6863a2dec1
--- /dev/null
+++ b/include/linux/amd-iommu.h
@@ -0,0 +1,35 @@
+/*
+ * 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 */