[ARM] 4751/1: [AT91] ISI peripheral on SAM9263

[linux-2.6-omap-h63xx.git] / include / asm-sh64 / dma-mapping.h

diff --git a/include/asm-sh64/dma-mapping.h b/include/asm-sh64/dma-mapping.h
index de4309960207779eb216d7d06ecc4cb9a6d32778..18f8dd642ac5282c263de65bf6020f545468bffa 100644 (file)
--- a/include/asm-sh64/dma-mapping.h
+++ b/include/asm-sh64/dma-mapping.h
@@ -2,7 +2,7 @@
 #define __ASM_SH_DMA_MAPPING_H
 
 #include <linux/mm.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
 #include <asm/io.h>
 
 struct pci_dev;
@@ -42,7 +42,12 @@ static inline void dma_free_coherent(struct device *dev, size_t size,
 static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
                                  enum dma_data_direction dir)
 {
-       dma_cache_wback_inv((unsigned long)vaddr, size);
+       unsigned long start = (unsigned long) vaddr;
+       unsigned long s = start & L1_CACHE_ALIGN_MASK;
+       unsigned long e = (start + size) & L1_CACHE_ALIGN_MASK;
+
+       for (; s <= e; s += L1_CACHE_BYTES)
+               asm volatile ("ocbp     %0, 0" : : "r" (s));
 }
 
 static inline dma_addr_t dma_map_single(struct device *dev,
@@ -67,10 +72,9 @@ static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
 
        for (i = 0; i < nents; i++) {
 #if !defined(CONFIG_PCI) || defined(CONFIG_SH_PCIDMA_NONCOHERENT)
-               dma_cache_sync(dev, page_address(sg[i].page) + sg[i].offset,
-                              sg[i].length, dir);
+               dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
 #endif
-               sg[i].dma_address = page_to_phys(sg[i].page) + sg[i].offset;
+               sg[i].dma_address = sg_phys(&sg[i]);
        }
 
        return nents;
@@ -120,10 +124,9 @@ static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg,
 
        for (i = 0; i < nelems; i++) {
 #if !defined(CONFIG_PCI) || defined(CONFIG_SH_PCIDMA_NONCOHERENT)
-               dma_cache_sync(dev, page_address(sg[i].page) + sg[i].offset,
-                              sg[i].length, dir);
+               dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
 #endif
-               sg[i].dma_address = page_to_phys(sg[i].page) + sg[i].offset;
+               sg[i].dma_address = sg_phys(&sg[i]);
        }
 }