forked from luck/tmp_suning_uos_patched
69b1b7817e
Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: John Linn <john.linn@xilinx.com> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
130 lines
2.7 KiB
C
130 lines
2.7 KiB
C
/*
|
|
* Copyright (C) 2006 Atmark Techno, Inc.
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
|
|
#ifndef _ASM_MICROBLAZE_DMA_MAPPING_H
|
|
#define _ASM_MICROBLAZE_DMA_MAPPING_H
|
|
|
|
#include <asm/cacheflush.h>
|
|
#include <linux/io.h>
|
|
#include <linux/bug.h>
|
|
|
|
struct scatterlist;
|
|
|
|
#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)
|
|
|
|
/* FIXME */
|
|
static inline int
|
|
dma_supported(struct device *dev, u64 mask)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
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)
|
|
{
|
|
BUG();
|
|
return 0;
|
|
}
|
|
|
|
static inline void
|
|
dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
BUG();
|
|
}
|
|
|
|
static inline int
|
|
dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
|
|
enum dma_data_direction direction)
|
|
{
|
|
BUG();
|
|
return 0;
|
|
}
|
|
|
|
static inline void
|
|
dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
|
|
enum dma_data_direction direction)
|
|
{
|
|
BUG();
|
|
}
|
|
|
|
static inline void
|
|
dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
BUG();
|
|
}
|
|
|
|
static inline void
|
|
dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
|
|
size_t size, enum dma_data_direction direction)
|
|
{
|
|
BUG();
|
|
}
|
|
|
|
static inline void
|
|
dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
|
|
enum dma_data_direction direction)
|
|
{
|
|
BUG();
|
|
}
|
|
|
|
static inline void
|
|
dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
|
|
enum dma_data_direction direction)
|
|
{
|
|
BUG();
|
|
}
|
|
|
|
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void *dma_alloc_coherent(struct device *dev, size_t size,
|
|
dma_addr_t *dma_handle, int flag)
|
|
{
|
|
return NULL; /* consistent_alloc(flag, size, dma_handle); */
|
|
}
|
|
|
|
static inline void dma_free_coherent(struct device *dev, size_t size,
|
|
void *vaddr, dma_addr_t dma_handle)
|
|
{
|
|
BUG();
|
|
}
|
|
|
|
static inline dma_addr_t
|
|
dma_map_single(struct device *dev, void *ptr, size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
BUG_ON(direction == DMA_NONE);
|
|
|
|
return virt_to_bus(ptr);
|
|
}
|
|
|
|
static inline void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
|
|
size_t size,
|
|
enum dma_data_direction direction)
|
|
{
|
|
switch (direction) {
|
|
case DMA_FROM_DEVICE:
|
|
flush_dcache_range((unsigned)dma_addr,
|
|
(unsigned)dma_addr + size);
|
|
/* Fall through */
|
|
case DMA_TO_DEVICE:
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
}
|
|
|
|
#endif /* _ASM_MICROBLAZE_DMA_MAPPING_H */
|