1 files changed, 14 insertions, 11 deletions

diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index 902967e3f84..b81d9dbf9fe 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -16,6 +16,7 @@
 #include <linux/dma-debug.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/gfp.h>
 #include <asm/cacheflush.h>
 #include <asm/addrspace.h>
 
@@ -32,16 +33,18 @@ static int __init dma_init(void)
 fs_initcall(dma_init);
 
 void *dma_generic_alloc_coherent(struct device *dev, size_t size,
-				 dma_addr_t *dma_handle, gfp_t gfp)
+				 dma_addr_t *dma_handle, gfp_t gfp,
+				 struct dma_attrs *attrs)
 {
 	void *ret, *ret_nocache;
 	int order = get_order(size);
 
+	gfp |= __GFP_ZERO;
+
 	ret = (void *)__get_free_pages(gfp, order);
 	if (!ret)
 		return NULL;
 
-	memset(ret, 0, size);
 	/*
 	 * Pages from the page allocator may have data present in
 	 * cache. So flush the cache before using uncached memory.
@@ -62,7 +65,8 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size,
 }
 
 void dma_generic_free_coherent(struct device *dev, size_t size,
-			       void *vaddr, dma_addr_t dma_handle)
+			       void *vaddr, dma_addr_t dma_handle,
+			       struct dma_attrs *attrs)
 {
 	int order = get_order(size);
 	unsigned long pfn = dma_handle >> PAGE_SHIFT;
@@ -77,21 +81,20 @@ void dma_generic_free_coherent(struct device *dev, size_t size,
 void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 		    enum dma_data_direction direction)
 {
-#if defined(CONFIG_CPU_SH5) || defined(CONFIG_PMB)
-	void *p1addr = vaddr;
-#else
-	void *p1addr = (void*) P1SEGADDR((unsigned long)vaddr);
-#endif
+	void *addr;
+
+	addr = __in_29bit_mode() ?
+	       (void *)CAC_ADDR((unsigned long)vaddr) : vaddr;
 
 	switch (direction) {
 	case DMA_FROM_DEVICE:		/* invalidate only */
-		__flush_invalidate_region(p1addr, size);
+		__flush_invalidate_region(addr, size);
 		break;
 	case DMA_TO_DEVICE:		/* writeback only */
-		__flush_wback_region(p1addr, size);
+		__flush_wback_region(addr, size);
 		break;
 	case DMA_BIDIRECTIONAL:		/* writeback and invalidate */
-		__flush_purge_region(p1addr, size);
+		__flush_purge_region(addr, size);
 		break;
 	default:
 		BUG();