Merge commit 'jwb/next' into next

[deliverable/linux.git] / arch / powerpc / include / asm / dma-mapping.h

diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index c69f2b5f0cc40035877ccea1f363c3de6711fc61..3d9e887c3c0cfb0a970e30c6318b4b1804d08549 100644 (file)
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -15,9 +15,18 @@
 #include <linux/scatterlist.h>
 #include <linux/dma-attrs.h>
 #include <asm/io.h>
+#include <asm/swiotlb.h>
 
 #define DMA_ERROR_CODE         (~(dma_addr_t)0x0)
 
+/* Some dma direct funcs must be visible for use in other dma_ops */
+extern void *dma_direct_alloc_coherent(struct device *dev, size_t size,
+                                      dma_addr_t *dma_handle, gfp_t flag);
+extern void dma_direct_free_coherent(struct device *dev, size_t size,
+                                    void *vaddr, dma_addr_t dma_handle);
+
+extern unsigned long get_dma_direct_offset(struct device *dev);
+
 #ifdef CONFIG_NOT_COHERENT_CACHE
 /*
  * DMA-consistent mapping functions for PowerPCs that don't support
@@ -26,7 +35,9 @@
  * allocate the space "normally" and use the cache management functions
  * to ensure it is consistent.
  */
-extern void *__dma_alloc_coherent(size_t size, dma_addr_t *handle, gfp_t gfp);
+struct device;
+extern void *__dma_alloc_coherent(struct device *dev, size_t size,
+                                 dma_addr_t *handle, gfp_t gfp);
 extern void __dma_free_coherent(size_t size, void *vaddr);
 extern void __dma_sync(void *vaddr, size_t size, int direction);
 extern void __dma_sync_page(struct page *page, unsigned long offset,
@@ -37,7 +48,7 @@ extern void __dma_sync_page(struct page *page, unsigned long offset,
  * Cache coherent cores.
  */
 
-#define __dma_alloc_coherent(gfp, size, handle)        NULL
+#define __dma_alloc_coherent(dev, gfp, size, handle)   NULL
 #define __dma_free_coherent(size, addr)                ((void)0)
 #define __dma_sync(addr, size, rw)             ((void)0)
 #define __dma_sync_page(pg, off, sz, rw)       ((void)0)
@@ -76,6 +87,8 @@ struct dma_mapping_ops {
                                dma_addr_t dma_address, size_t size,
                                enum dma_data_direction direction,
                                struct dma_attrs *attrs);
+       int             (*addr_needs_map)(struct device *dev, dma_addr_t addr,
+                               size_t size);
 #ifdef CONFIG_PPC_NEED_DMA_SYNC_OPS
        void            (*sync_single_range_for_cpu)(struct device *hwdev,
                                dma_addr_t dma_handle, unsigned long offset,