9a88cbb522
Platforms will now have to supply a function dma_device_is_coherent which returns if a particular device participates in the coherence domain. For most platforms this function will always return 0 or 1. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
41 lines
934 B
C
41 lines
934 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_JAZZ_DMA_COHERENCE_H
|
|
#define __ASM_MACH_JAZZ_DMA_COHERENCE_H
|
|
|
|
#include <asm/jazzdma.h>
|
|
|
|
struct device;
|
|
|
|
static dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
|
|
{
|
|
return vdma_alloc(virt_to_phys(addr), size);
|
|
}
|
|
|
|
static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
|
|
{
|
|
return vdma_alloc(page_to_phys(page), PAGE_SIZE);
|
|
}
|
|
|
|
static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
|
|
{
|
|
return vdma_log2phys(dma_addr);
|
|
}
|
|
|
|
static void plat_unmap_dma_mem(dma_addr_t dma_addr)
|
|
{
|
|
vdma_free(dma_addr);
|
|
}
|
|
|
|
static inline int plat_device_is_coherent(struct device *dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* __ASM_MACH_JAZZ_DMA_COHERENCE_H */
|