1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
#ifndef _ASM_IA64_DMA_MAPPING_H
|
|
#define _ASM_IA64_DMA_MAPPING_H
|
|
|
|
/*
|
|
* Copyright (C) 2003-2004 Hewlett-Packard Co
|
|
* David Mosberger-Tang <davidm@hpl.hp.com>
|
|
*/
|
|
#include <linux/config.h>
|
|
#include <asm/machvec.h>
|
|
|
|
#define dma_alloc_coherent platform_dma_alloc_coherent
|
|
#define dma_alloc_noncoherent platform_dma_alloc_coherent /* coherent mem. is cheap */
|
|
#define dma_free_coherent platform_dma_free_coherent
|
|
#define dma_free_noncoherent platform_dma_free_coherent
|
|
#define dma_map_single platform_dma_map_single
|
|
#define dma_map_sg platform_dma_map_sg
|
|
#define dma_unmap_single platform_dma_unmap_single
|
|
#define dma_unmap_sg platform_dma_unmap_sg
|
|
#define dma_sync_single_for_cpu platform_dma_sync_single_for_cpu
|
|
#define dma_sync_sg_for_cpu platform_dma_sync_sg_for_cpu
|
|
#define dma_sync_single_for_device platform_dma_sync_single_for_device
|
|
#define dma_sync_sg_for_device platform_dma_sync_sg_for_device
|
|
#define dma_mapping_error platform_dma_mapping_error
|
|
|
|
#define dma_map_page(dev, pg, off, size, dir) \
|
|
dma_map_single(dev, page_address(pg) + (off), (size), (dir))
|
|
#define dma_unmap_page(dev, dma_addr, size, dir) \
|
|
dma_unmap_single(dev, dma_addr, size, dir)
|
|
|
|
/*
|
|
* Rest of this file is part of the "Advanced DMA API". Use at your own risk.
|
|
* See Documentation/DMA-API.txt for details.
|
|
*/
|
|
|
|
#define dma_sync_single_range_for_cpu(dev, dma_handle, offset, size, dir) \
|
|
dma_sync_single_for_cpu(dev, dma_handle, size, dir)
|
|
#define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \
|
|
dma_sync_single_for_device(dev, dma_handle, size, dir)
|
|
|
|
#define dma_supported platform_dma_supported
|
|
|
|
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)
|
|
{
|
|
extern int ia64_max_cacheline_size;
|
|
return ia64_max_cacheline_size;
|
|
}
|
|
|
|
static inline void
|
|
dma_cache_sync (void *vaddr, size_t size, enum dma_data_direction dir)
|
|
{
|
|
/*
|
|
* IA-64 is cache-coherent, so this is mostly a no-op. However, we do need to
|
|
* ensure that dma_cache_sync() enforces order, hence the mb().
|
|
*/
|
|
mb();
|
|
}
|
|
|
|
#define dma_is_consistent(dma_handle) (1) /* all we do is coherent memory... */
|
|
|
|
#endif /* _ASM_IA64_DMA_MAPPING_H */
|