metag: convert to dma_map_ops

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 175 deletions

diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index eb5cdec94be0..768f2e30236d 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -1,178 +1,14 @@
 #ifndef _ASM_METAG_DMA_MAPPING_H
 #define _ASM_METAG_DMA_MAPPING_H
 
-#include <linux/mm.h>
+extern struct dma_map_ops metag_dma_ops;
 
-#include <asm/cache.h>
-#include <asm/io.h>
-#include <linux/scatterlist.h>
-#include <asm/bug.h>
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-
-void *dma_alloc_coherent(struct device *dev, size_t size,
-			 dma_addr_t *dma_handle, gfp_t flag);
-
-void dma_free_coherent(struct device *dev, size_t size,
-		       void *vaddr, dma_addr_t dma_handle);
-
-void dma_sync_for_device(void *vaddr, size_t size, int dma_direction);
-void dma_sync_for_cpu(void *vaddr, size_t size, int dma_direction);
-
-int dma_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
-		      void *cpu_addr, dma_addr_t dma_addr, size_t size);
-
-int dma_mmap_writecombine(struct device *dev, struct vm_area_struct *vma,
-			  void *cpu_addr, dma_addr_t dma_addr, size_t size);
-
-static inline dma_addr_t
-dma_map_single(struct device *dev, void *ptr, size_t size,
-	       enum dma_data_direction direction)
-{
-	BUG_ON(!valid_dma_direction(direction));
-	WARN_ON(size == 0);
-	dma_sync_for_device(ptr, size, direction);
-	return virt_to_phys(ptr);
-}
-
-static inline void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
-		 enum dma_data_direction direction)
-{
-	BUG_ON(!valid_dma_direction(direction));
-	dma_sync_for_cpu(phys_to_virt(dma_addr), size, direction);
-}
-
-static inline int
-dma_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
-	   enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	BUG_ON(!valid_dma_direction(direction));
-	WARN_ON(nents == 0 || sglist[0].length == 0);
-
-	for_each_sg(sglist, sg, nents, i) {
-		BUG_ON(!sg_page(sg));
-
-		sg->dma_address = sg_phys(sg);
-		dma_sync_for_device(sg_virt(sg), sg->length, direction);
-	}
-
-	return nents;
-}
-
-static inline dma_addr_t
-dma_map_page(struct device *dev, struct page *page, unsigned long offset,
-	     size_t size, enum dma_data_direction direction)
-{
-	BUG_ON(!valid_dma_direction(direction));
-	dma_sync_for_device((void *)(page_to_phys(page) + offset), size,
-			    direction);
-	return page_to_phys(page) + offset;
-}
-
-static inline void
-dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
-	       enum dma_data_direction direction)
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 {
-	BUG_ON(!valid_dma_direction(direction));
-	dma_sync_for_cpu(phys_to_virt(dma_address), size, direction);
+	return &metag_dma_ops;
 }
 
-
-static inline void
-dma_unmap_sg(struct device *dev, struct scatterlist *sglist, int nhwentries,
-	     enum dma_data_direction direction)
-{
-	struct scatterlist *sg;
-	int i;
-
-	BUG_ON(!valid_dma_direction(direction));
-	WARN_ON(nhwentries == 0 || sglist[0].length == 0);
-
-	for_each_sg(sglist, sg, nhwentries, i) {
-		BUG_ON(!sg_page(sg));
-
-		sg->dma_address = sg_phys(sg);
-		dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
-	}
-}
-
-static inline void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
-			enum dma_data_direction direction)
-{
-	dma_sync_for_cpu(phys_to_virt(dma_handle), size, direction);
-}
-
-static inline void
-dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
-			   size_t size, enum dma_data_direction direction)
-{
-	dma_sync_for_device(phys_to_virt(dma_handle), size, direction);
-}
-
-static inline void
-dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
-			      unsigned long offset, size_t size,
-			      enum dma_data_direction direction)
-{
-	dma_sync_for_cpu(phys_to_virt(dma_handle)+offset, size,
-			 direction);
-}
-
-static inline void
-dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
-				 unsigned long offset, size_t size,
-				 enum dma_data_direction direction)
-{
-	dma_sync_for_device(phys_to_virt(dma_handle)+offset, size,
-			    direction);
-}
-
-static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist, int nelems,
-		    enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nelems, i)
-		dma_sync_for_cpu(sg_virt(sg), sg->length, direction);
-}
-
-static inline void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
-		       int nelems, enum dma_data_direction direction)
-{
-	int i;
-	struct scatterlist *sg;
-
-	for_each_sg(sglist, sg, nelems, i)
-		dma_sync_for_device(sg_virt(sg), sg->length, direction);
-}
-
-static inline int
-dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
-	return 0;
-}
-
-#define dma_supported(dev, mask)        (1)
-
-static inline int
-dma_set_mask(struct device *dev, u64 mask)
-{
-	if (!dev->dma_mask || !dma_supported(dev, mask))
-		return -EIO;
-
-	*dev->dma_mask = mask;
-
-	return 0;
-}
+#include <asm-generic/dma-mapping-common.h>
 
 /*
  * dma_alloc_noncoherent() returns non-cacheable memory, so there's no need to
@@ -184,11 +20,4 @@ dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 {
 }
 
-/* drivers/base/dma-mapping.c */
-extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
-				  void *cpu_addr, dma_addr_t dma_addr,
-				  size_t size);
-
-#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
-
 #endif