45 lines
954 B
C
45 lines
954 B
C
/*
|
|
* 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.
|
|
*
|
|
* Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org>
|
|
*
|
|
*/
|
|
#ifndef __ASM_MACH_GENERIC_DMA_COHERENCE_H
|
|
#define __ASM_MACH_GENERIC_DMA_COHERENCE_H
|
|
|
|
struct device;
|
|
|
|
static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
|
|
size_t size)
|
|
{
|
|
return virt_to_phys(addr);
|
|
}
|
|
|
|
static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
|
|
struct page *page)
|
|
{
|
|
return page_to_phys(page);
|
|
}
|
|
|
|
static inline unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
|
|
{
|
|
return dma_addr;
|
|
}
|
|
|
|
static inline void plat_unmap_dma_mem(dma_addr_t dma_addr)
|
|
{
|
|
}
|
|
|
|
static inline int plat_device_is_coherent(struct device *dev)
|
|
{
|
|
#ifdef CONFIG_DMA_COHERENT
|
|
return 1;
|
|
#endif
|
|
#ifdef CONFIG_DMA_NONCOHERENT
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
#endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */
|