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Diffstat (limited to 'arch/x86/include/asm/swiotlb.h')
-rw-r--r--arch/x86/include/asm/swiotlb.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/x86/include/asm/swiotlb.h b/arch/x86/include/asm/swiotlb.h
new file mode 100644
index 00000000..977f1761
--- /dev/null
+++ b/arch/x86/include/asm/swiotlb.h
@@ -0,0 +1,32 @@
+#ifndef _ASM_X86_SWIOTLB_H
+#define _ASM_X86_SWIOTLB_H
+
+#include <linux/swiotlb.h>
+
+#ifdef CONFIG_SWIOTLB
+extern int swiotlb;
+extern int __init pci_swiotlb_detect_override(void);
+extern int __init pci_swiotlb_detect_4gb(void);
+extern void __init pci_swiotlb_init(void);
+extern void __init pci_swiotlb_late_init(void);
+#else
+#define swiotlb 0
+static inline int pci_swiotlb_detect_override(void)
+{
+ return 0;
+}
+static inline int pci_swiotlb_detect_4gb(void)
+{
+ return 0;
+}
+static inline void pci_swiotlb_init(void)
+{
+}
+static inline void pci_swiotlb_late_init(void)
+{
+}
+#endif
+
+static inline void dma_mark_clean(void *addr, size_t size) {}
+
+#endif /* _ASM_X86_SWIOTLB_H */