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authorJoerg Roedel <joerg.roedel@amd.com>2008-06-26 21:28:06 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-27 10:12:21 +0200
commitc6da992e16a9d261eb9dfeff14e9777c3e0468c5 (patch)
tree3d47e81d5def14bc2081f348c2099c56d69f57fe /include/asm-x86/amd_iommu.h
parent6631ee9d00996e7663a086b5abceba65c89ff8f6 (diff)
x86, AMD IOMMU: add amd_iommu.h to export functions to the generic x86 dma code
This patch adds the amd_iommu.h file which will be included in the generic code. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Cc: iommu@lists.linux-foundation.org Cc: bhavna.sarathy@amd.com Cc: Sebastian.Biemueller@amd.com Cc: robert.richter@amd.com Cc: joro@8bytes.org Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/amd_iommu.h')
-rw-r--r--include/asm-x86/amd_iommu.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/include/asm-x86/amd_iommu.h b/include/asm-x86/amd_iommu.h
new file mode 100644
index 000000000000..30a12049353b
--- /dev/null
+++ b/include/asm-x86/amd_iommu.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2007-2008 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
+
+#ifdef CONFIG_AMD_IOMMU
+extern int amd_iommu_init(void);
+extern int amd_iommu_init_dma_ops(void);
+extern void amd_iommu_detect(void);
+#else
+static inline int amd_iommu_init(void) { return -ENODEV; }
+static inline void amd_iommu_detect(void) { }
+#endif
+
+#endif