aboutsummaryrefslogtreecommitdiff
path: root/include/asm-sh/dma-mapping.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-sh/dma-mapping.h')
-rw-r--r--include/asm-sh/dma-mapping.h193
1 files changed, 0 insertions, 193 deletions
diff --git a/include/asm-sh/dma-mapping.h b/include/asm-sh/dma-mapping.h
deleted file mode 100644
index 627315ecdb5..00000000000
--- a/include/asm-sh/dma-mapping.h
+++ /dev/null
@@ -1,193 +0,0 @@
-#ifndef __ASM_SH_DMA_MAPPING_H
-#define __ASM_SH_DMA_MAPPING_H
-
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-#include <asm/cacheflush.h>
-#include <asm/io.h>
-#include <asm-generic/dma-coherent.h>
-
-extern struct bus_type pci_bus_type;
-
-#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;
-}
-
-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_cache_sync(struct device *dev, void *vaddr, size_t size,
- enum dma_data_direction dir);
-
-#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)
-#define dma_is_consistent(d, h) (1)
-
-static inline dma_addr_t dma_map_single(struct device *dev,
- void *ptr, size_t size,
- enum dma_data_direction dir)
-{
-#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
- if (dev->bus == &pci_bus_type)
- return virt_to_phys(ptr);
-#endif
- dma_cache_sync(dev, ptr, size, dir);
-
- return virt_to_phys(ptr);
-}
-
-#define dma_unmap_single(dev, addr, size, dir) do { } while (0)
-
-static inline int dma_map_sg(struct device *dev, struct scatterlist *sg,
- int nents, enum dma_data_direction dir)
-{
- int i;
-
- for (i = 0; i < nents; i++) {
-#if !defined(CONFIG_PCI) || defined(CONFIG_SH_PCIDMA_NONCOHERENT)
- dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
-#endif
- sg[i].dma_address = sg_phys(&sg[i]);
- }
-
- return nents;
-}
-
-#define dma_unmap_sg(dev, sg, nents, dir) do { } while (0)
-
-static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction dir)
-{
- return dma_map_single(dev, page_address(page) + offset, size, dir);
-}
-
-static inline void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
- size_t size, enum dma_data_direction dir)
-{
- dma_unmap_single(dev, dma_address, size, dir);
-}
-
-static inline void dma_sync_single(struct device *dev, dma_addr_t dma_handle,
- size_t size, enum dma_data_direction dir)
-{
-#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
- if (dev->bus == &pci_bus_type)
- return;
-#endif
- dma_cache_sync(dev, phys_to_virt(dma_handle), size, dir);
-}
-
-static inline void dma_sync_single_range(struct device *dev,
- dma_addr_t dma_handle,
- unsigned long offset, size_t size,
- enum dma_data_direction dir)
-{
-#if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
- if (dev->bus == &pci_bus_type)
- return;
-#endif
- dma_cache_sync(dev, phys_to_virt(dma_handle) + offset, size, dir);
-}
-
-static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg,
- int nelems, enum dma_data_direction dir)
-{
- int i;
-
- for (i = 0; i < nelems; i++) {
-#if !defined(CONFIG_PCI) || defined(CONFIG_SH_PCIDMA_NONCOHERENT)
- dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, dir);
-#endif
- sg[i].dma_address = sg_phys(&sg[i]);
- }
-}
-
-static inline void dma_sync_single_for_cpu(struct device *dev,
- dma_addr_t dma_handle, size_t size,
- enum dma_data_direction dir)
-{
- dma_sync_single(dev, dma_handle, size, dir);
-}
-
-static inline void dma_sync_single_for_device(struct device *dev,
- dma_addr_t dma_handle,
- size_t size,
- enum dma_data_direction dir)
-{
- dma_sync_single(dev, dma_handle, size, dir);
-}
-
-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 dir)
-{
- dma_sync_sg(dev, sg, nelems, dir);
-}
-
-static inline void dma_sync_sg_for_device(struct device *dev,
- struct scatterlist *sg, int nelems,
- enum dma_data_direction dir)
-{
- dma_sync_sg(dev, sg, nelems, dir);
-}
-
-
-static inline int dma_get_cache_alignment(void)
-{
- /*
- * Each processor family will define its own L1_CACHE_SHIFT,
- * L1_CACHE_BYTES wraps to this, so this is always safe.
- */
- return L1_CACHE_BYTES;
-}
-
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
- return dma_addr == 0;
-}
-
-#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 /* __ASM_SH_DMA_MAPPING_H */