aboutsummaryrefslogtreecommitdiffstats
path: root/linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/dma-mapping.h
diff options
context:
space:
mode:
Diffstat (limited to 'linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/dma-mapping.h')
-rw-r--r--linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/dma-mapping.h157
1 files changed, 0 insertions, 157 deletions
diff --git a/linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/dma-mapping.h b/linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/dma-mapping.h
deleted file mode 100644
index 39a9ce0ad0..0000000000
--- a/linux-2.6-xen-sparse/include/asm-i386/mach-xen/asm/dma-mapping.h
+++ /dev/null
@@ -1,157 +0,0 @@
-#ifndef _ASM_I386_DMA_MAPPING_H
-#define _ASM_I386_DMA_MAPPING_H
-
-/*
- * IOMMU interface. See Documentation/DMA-mapping.txt and DMA-API.txt for
- * documentation.
- */
-
-#include <linux/mm.h>
-#include <asm/cache.h>
-#include <asm/io.h>
-#include <asm/scatterlist.h>
-#include <asm/swiotlb.h>
-
-static inline int
-address_needs_mapping(struct device *hwdev, dma_addr_t addr)
-{
- dma_addr_t mask = 0xffffffff;
- /* If the device has a mask, use it, otherwise default to 32 bits */
- if (hwdev && hwdev->dma_mask)
- mask = *hwdev->dma_mask;
- return (addr & ~mask) != 0;
-}
-
-static inline int
-range_straddles_page_boundary(void *p, size_t size)
-{
- extern unsigned long *contiguous_bitmap;
- return (((((unsigned long)p & ~PAGE_MASK) + size) > PAGE_SIZE) &&
- !test_bit(__pa(p) >> PAGE_SHIFT, contiguous_bitmap));
-}
-
-#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);
-
-extern dma_addr_t
-dma_map_single(struct device *dev, void *ptr, size_t size,
- enum dma_data_direction direction);
-
-extern void
-dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
- enum dma_data_direction direction);
-
-extern int dma_map_sg(struct device *hwdev, struct scatterlist *sg,
- int nents, enum dma_data_direction direction);
-extern void dma_unmap_sg(struct device *hwdev, struct scatterlist *sg,
- int nents, enum dma_data_direction direction);
-
-#ifdef CONFIG_HIGHMEM
-extern dma_addr_t
-dma_map_page(struct device *dev, struct page *page, unsigned long offset,
- size_t size, enum dma_data_direction direction);
-
-extern void
-dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
- enum dma_data_direction direction);
-#else
-#define dma_map_page(dev, page, offset, size, dir) \
- dma_map_single(dev, page_address(page) + (offset), (size), (dir))
-#define dma_unmap_page dma_unmap_single
-#endif
-
-extern void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
- enum dma_data_direction direction);
-
-extern 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_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_single_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)
-{
- dma_sync_single_for_device(dev, dma_handle+offset, size, direction);
-}
-
-static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
- enum dma_data_direction direction)
-{
- if (swiotlb)
- swiotlb_sync_sg_for_cpu(dev,sg,nelems,direction);
- flush_write_buffers();
-}
-
-static inline void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
- enum dma_data_direction direction)
-{
- if (swiotlb)
- swiotlb_sync_sg_for_device(dev,sg,nelems,direction);
- flush_write_buffers();
-}
-
-extern int
-dma_mapping_error(dma_addr_t dma_addr);
-
-extern int
-dma_supported(struct device *dev, u64 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;
-}
-
-static inline int
-dma_get_cache_alignment(void)
-{
- /* no easy way to get cache size on all x86, so return the
- * maximum possible, to be safe */
- return (1 << INTERNODE_CACHE_SHIFT);
-}
-
-#define dma_is_consistent(d) (1)
-
-static inline void
-dma_cache_sync(void *vaddr, size_t size,
- enum dma_data_direction direction)
-{
- flush_write_buffers();
-}
-
-#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
-extern int
-dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
- dma_addr_t device_addr, size_t size, int flags);
-
-extern void
-dma_release_declared_memory(struct device *dev);
-
-extern void *
-dma_mark_declared_memory_occupied(struct device *dev,
- dma_addr_t device_addr, size_t size);
-
-#endif