powerpc/dma: trim the fat from <asm/dma-mapping.h>

[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 a59c42879194aacd01b42390391535ec3e55ce98..565d6f74b189cc23dc5b985915da97aedf2c6c09 100644 (file)
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -1,37 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2004 IBM
- *
- * Implements the generic device dma API for powerpc.
- * the pci and vio busses
  */
 #ifndef _ASM_DMA_MAPPING_H
 #define _ASM_DMA_MAPPING_H
-#ifdef __KERNEL__
-
-#include <linux/types.h>
-#include <linux/cache.h>
-/* need struct page definitions */
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <asm/io.h>
-#include <asm/swiotlb.h>
-
-static inline unsigned long device_to_mask(struct device *dev)
-{
-       if (dev->dma_mask && *dev->dma_mask)
-               return *dev->dma_mask;
-       /* Assume devices without mask can take 32 bit addresses */
-       return 0xfffffffful;
-}
-
-/*
- * Available generic sets of operations
- */
-#ifdef CONFIG_PPC64
-extern const struct dma_map_ops dma_iommu_ops;
-#endif
 
 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
 {
@@ -43,5 +15,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
        return NULL;
 }
 
-#endif /* __KERNEL__ */
 #endif /* _ASM_DMA_MAPPING_H */