vserver 2.0 rc7

[linux-2.6.git] / include / asm-ppc64 / dma-mapping.h

diff --git a/include/asm-ppc64/dma-mapping.h b/include/asm-ppc64/dma-mapping.h
index 1e05f38..9ad8ade 100644 (file)
--- a/include/asm-ppc64/dma-mapping.h
+++ b/include/asm-ppc64/dma-mapping.h
@@ -19,7 +19,7 @@
 extern int dma_supported(struct device *dev, u64 mask);
 extern int dma_set_mask(struct device *dev, u64 dma_mask);
 extern void *dma_alloc_coherent(struct device *dev, size_t size,
-               dma_addr_t *dma_handle, int flag);
+               dma_addr_t *dma_handle, unsigned int __nocast flag);
 extern void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
                dma_addr_t dma_handle);
 extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
@@ -113,4 +113,24 @@ dma_cache_sync(void *vaddr, size_t size,
        /* nothing to do */
 }
 
+/*
+ * DMA operations are abstracted for G5 vs. i/pSeries, PCI vs. VIO
+ */
+struct dma_mapping_ops {
+       void *          (*alloc_coherent)(struct device *dev, size_t size,
+                               dma_addr_t *dma_handle, unsigned int __nocast flag);
+       void            (*free_coherent)(struct device *dev, size_t size,
+                               void *vaddr, dma_addr_t dma_handle);
+       dma_addr_t      (*map_single)(struct device *dev, void *ptr,
+                               size_t size, enum dma_data_direction direction);
+       void            (*unmap_single)(struct device *dev, dma_addr_t dma_addr,
+                               size_t size, enum dma_data_direction direction);
+       int             (*map_sg)(struct device *dev, struct scatterlist *sg,
+                               int nents, enum dma_data_direction direction);
+       void            (*unmap_sg)(struct device *dev, struct scatterlist *sg,
+                               int nents, enum dma_data_direction direction);
+       int             (*dma_supported)(struct device *dev, u64 mask);
+       int             (*dac_dma_supported)(struct device *dev, u64 mask);
+};
+
 #endif /* _ASM_DMA_MAPPING_H */