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-rw-r--r--arch/x86/include/asm/xen/page-coherent.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/include/asm/xen/page-coherent.h b/arch/x86/include/asm/xen/page-coherent.h
index 31de2e0..7f02fe4 100644
--- a/arch/x86/include/asm/xen/page-coherent.h
+++ b/arch/x86/include/asm/xen/page-coherent.h
@@ -21,4 +21,18 @@ static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
free_pages((unsigned long) cpu_addr, get_order(size));
}
+static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
+ unsigned long offset, size_t size, enum dma_data_direction dir,
+ struct dma_attrs *attrs) { }
+
+static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
+ size_t size, enum dma_data_direction dir,
+ struct dma_attrs *attrs) { }
+
+static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
+ dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
+
+static inline void xen_dma_sync_single_for_device(struct device *hwdev,
+ dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
+
#endif /* _ASM_X86_XEN_PAGE_COHERENT_H */
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