1 files changed, 9 insertions, 90 deletions
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 84238c574d5e..0fee561ac796 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -1,99 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_DMA_MAPPING_H
 #define _ASM_DMA_MAPPING_H
 
-#include <asm/scatterlist.h>
-#include <asm/dma-coherence.h>
-#include <asm/cache.h>
-#include <asm-generic/dma-coherent.h>
+#include <linux/swiotlb.h>
 
-#ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */
-#include <dma-coherence.h>
-#endif
-
-extern struct dma_map_ops *mips_dma_map_ops;
-
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
-{
-	if (dev && dev->archdata.dma_ops)
-		return dev->archdata.dma_ops;
-	else
-		return mips_dma_map_ops;
-}
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
-	if (!dev->dma_mask)
-		return 0;
-
-	return addr + size <= *dev->dma_mask;
-}
-
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
-#include <asm-generic/dma-mapping-common.h>
-
-static inline int dma_supported(struct device *dev, u64 mask)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-	return ops->dma_supported(dev, mask);
-}
-
-static inline int dma_mapping_error(struct device *dev, u64 mask)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	debug_dma_mapping_error(dev, mask);
-	return ops->mapping_error(dev, mask);
-}
-
-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;
-}
-
-extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
-	       enum dma_data_direction direction);
+extern const struct dma_map_ops jazz_dma_ops;
 
-#define dma_alloc_coherent(d,s,h,f)	dma_alloc_attrs(d,s,h,f,NULL)
-
-static inline void *dma_alloc_attrs(struct device *dev, size_t size,
-				    dma_addr_t *dma_handle, gfp_t gfp,
-				    struct dma_attrs *attrs)
+static inline const struct dma_map_ops *get_arch_dma_ops(void)
 {
-	void *ret;
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	ret = ops->alloc(dev, size, dma_handle, gfp, attrs);
-
-	debug_dma_alloc_coherent(dev, size, *dma_handle, ret);
-
-	return ret;
-}
-
-#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL)
-
-static inline void dma_free_attrs(struct device *dev, size_t size,
-				  void *vaddr, dma_addr_t dma_handle,
-				  struct dma_attrs *attrs)
-{
-	struct dma_map_ops *ops = get_dma_ops(dev);
-
-	ops->free(dev, size, vaddr, dma_handle, attrs);
-
-	debug_dma_free_coherent(dev, size, vaddr, dma_handle);
+#if defined(CONFIG_MACH_JAZZ)
+	return &jazz_dma_ops;
+#else
+	return NULL;
+#endif
 }
 
-
-void *dma_alloc_noncoherent(struct device *dev, size_t size,
-			   dma_addr_t *dma_handle, gfp_t flag);
-
-void dma_free_noncoherent(struct device *dev, size_t size,
-			 void *vaddr, dma_addr_t dma_handle);
-
 #endif /* _ASM_DMA_MAPPING_H */