55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org>
|
||
|
|
* Copyright (C) 2009 Broadcom Corporation
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __ASM_MACH_BMIPS_DMA_COHERENCE_H
|
||
|
|
#define __ASM_MACH_BMIPS_DMA_COHERENCE_H
|
||
|
|
|
||
|
|
#include <asm/bmips.h>
|
||
|
|
#include <asm/cpu-type.h>
|
||
|
|
#include <asm/cpu.h>
|
||
|
|
|
||
|
|
struct device;
|
||
|
|
|
||
|
|
extern dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size);
|
||
|
|
extern dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page);
|
||
|
|
extern unsigned long plat_dma_addr_to_phys(struct device *dev,
|
||
|
|
dma_addr_t dma_addr);
|
||
|
|
|
||
|
|
static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr,
|
||
|
|
size_t size, enum dma_data_direction direction)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int plat_dma_supported(struct device *dev, u64 mask)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* we fall back to GFP_DMA when the mask isn't all 1s,
|
||
|
|
* so we can't guarantee allocations that must be
|
||
|
|
* within a tighter range than GFP_DMA..
|
||
|
|
*/
|
||
|
|
if (mask < DMA_BIT_MASK(24))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int plat_device_is_coherent(struct device *dev)
|
||
|
|
{
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#define plat_post_dma_flush bmips_post_dma_flush
|
||
|
|
|
||
|
|
#endif /* __ASM_MACH_BMIPS_DMA_COHERENCE_H */
|