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Commit 46bab4e4 authored by FUJITA Tomonori's avatar FUJITA Tomonori Committed by Benjamin Herrenschmidt
Browse files

powerpc: Use asm-generic/dma-mapping-common.h 



Signed-off-by: default avatarFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: default avatarBecky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 45223c54

arch/powerpc/Kconfig

+1 −5
Original line number Diff line number Diff line
@@ -120,7 +120,7 @@ config PPC 
	select HAVE_KRETPROBES

	select HAVE_ARCH_TRACEHOOK

	select HAVE_LMB

	select HAVE_DMA_ATTRS if PPC64

	select HAVE_DMA_ATTRS

	select USE_GENERIC_SMP_HELPERS if SMP

	select HAVE_OPROFILE

	select HAVE_SYSCALL_WRAPPERS if PPC64
@@ -307,10 +307,6 @@ config SWIOTLB 
	  platforms where the size of a physical address is larger

	  than the bus address.  Not all platforms support this.



config PPC_NEED_DMA_SYNC_OPS

	def_bool y

	depends on (NOT_COHERENT_CACHE || SWIOTLB)



config HOTPLUG_CPU

	bool "Support for enabling/disabling CPUs"

	depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)

arch/powerpc/include/asm/dma-mapping.h

+6 −236
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include <linux/mm.h>

#include <linux/scatterlist.h>

#include <linux/dma-attrs.h>

#include <linux/dma-debug.h>

#include <asm/io.h>

#include <asm/swiotlb.h>
@@ -89,6 +90,11 @@ static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops) 
	dev->archdata.dma_ops = ops;

}



/* this will be removed soon */

#define flush_write_buffers()



#include <asm-generic/dma-mapping-common.h>



static inline int dma_supported(struct device *dev, u64 mask)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);
@@ -117,87 +123,6 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask) 
	return 0;

}



/*

 * map_/unmap_single actually call through to map/unmap_page now that all the

 * dma_map_ops have been converted over. We just have to get the page and

 * offset to pass through to map_page

 */

static inline dma_addr_t dma_map_single_attrs(struct device *dev,

					      void *cpu_addr,

					      size_t size,

					      enum dma_data_direction direction,

					      struct dma_attrs *attrs)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);



	return dma_ops->map_page(dev, virt_to_page(cpu_addr),

				 (unsigned long)cpu_addr % PAGE_SIZE, size,

				 direction, attrs);

}



static inline void dma_unmap_single_attrs(struct device *dev,

					  dma_addr_t dma_addr,

					  size_t size,

					  enum dma_data_direction direction,

					  struct dma_attrs *attrs)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);



	dma_ops->unmap_page(dev, dma_addr, size, direction, attrs);

}



static inline dma_addr_t dma_map_page_attrs(struct device *dev,

					    struct page *page,

					    unsigned long offset, size_t size,

					    enum dma_data_direction direction,

					    struct dma_attrs *attrs)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);



	return dma_ops->map_page(dev, page, offset, size, direction, attrs);

}



static inline void dma_unmap_page_attrs(struct device *dev,

					dma_addr_t dma_address,

					size_t size,

					enum dma_data_direction direction,

					struct dma_attrs *attrs)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);



	dma_ops->unmap_page(dev, dma_address, size, direction, attrs);

}



static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg,

				   int nents, enum dma_data_direction direction,

				   struct dma_attrs *attrs)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);

	return dma_ops->map_sg(dev, sg, nents, direction, attrs);

}



static inline void dma_unmap_sg_attrs(struct device *dev,

				      struct scatterlist *sg,

				      int nhwentries,

				      enum dma_data_direction direction,

				      struct dma_attrs *attrs)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);

	dma_ops->unmap_sg(dev, sg, nhwentries, direction, attrs);

}



static inline void *dma_alloc_coherent(struct device *dev, size_t size,

				       dma_addr_t *dma_handle, gfp_t flag)

{
@@ -216,161 +141,6 @@ static inline void dma_free_coherent(struct device *dev, size_t size, 
	dma_ops->free_coherent(dev, size, cpu_addr, dma_handle);

}



static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,

					size_t size,

					enum dma_data_direction direction)

{

	return dma_map_single_attrs(dev, cpu_addr, size, direction, NULL);

}



static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,

				    size_t size,

				    enum dma_data_direction direction)

{

	dma_unmap_single_attrs(dev, dma_addr, size, direction, NULL);

}



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)

{

	return dma_map_page_attrs(dev, page, offset, size, direction, NULL);

}



static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,

				  size_t size,

				  enum dma_data_direction direction)

{

	dma_unmap_page_attrs(dev, dma_address, size, direction, NULL);

}



static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,

			     int nents, enum dma_data_direction direction)

{

	return dma_map_sg_attrs(dev, sg, nents, direction, NULL);

}



static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sg,

				int nhwentries,

				enum dma_data_direction direction)

{

	dma_unmap_sg_attrs(dev, sg, nhwentries, direction, NULL);

}



#ifdef CONFIG_PPC_NEED_DMA_SYNC_OPS

static inline void dma_sync_single_for_cpu(struct device *dev,

		dma_addr_t dma_handle, size_t size,

		enum dma_data_direction direction)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);



	if (dma_ops->sync_single_range_for_cpu)

		dma_ops->sync_single_range_for_cpu(dev, dma_handle, 0,

					   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)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);



	if (dma_ops->sync_single_range_for_device)

		dma_ops->sync_single_range_for_device(dev, dma_handle,

					      0, size, direction);

}



static inline void dma_sync_sg_for_cpu(struct device *dev,

		struct scatterlist *sgl, int nents,

		enum dma_data_direction direction)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);



	if (dma_ops->sync_sg_for_cpu)

		dma_ops->sync_sg_for_cpu(dev, sgl, nents, direction);

}



static inline void dma_sync_sg_for_device(struct device *dev,

		struct scatterlist *sgl, int nents,

		enum dma_data_direction direction)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);



	if (dma_ops->sync_sg_for_device)

		dma_ops->sync_sg_for_device(dev, sgl, nents, 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)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);



	if (dma_ops->sync_single_range_for_cpu)

		dma_ops->sync_single_range_for_cpu(dev, 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)

{

	struct dma_map_ops *dma_ops = get_dma_ops(dev);



	BUG_ON(!dma_ops);



	if (dma_ops->sync_single_range_for_device)

		dma_ops->sync_single_range_for_device(dev, dma_handle, offset,

					      size, direction);

}

#else /* CONFIG_PPC_NEED_DMA_SYNC_OPS */

static inline void dma_sync_single_for_cpu(struct device *dev,

		dma_addr_t dma_handle, size_t size,

		enum dma_data_direction 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)

{

}



static inline void dma_sync_sg_for_cpu(struct device *dev,

		struct scatterlist *sgl, int nents,

		enum dma_data_direction direction)

{

}



static inline void dma_sync_sg_for_device(struct device *dev,

		struct scatterlist *sgl, int nents,

		enum dma_data_direction 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)

{

}



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)

{

}

#endif



static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)

{

#ifdef CONFIG_PPC64