diff options
Diffstat (limited to 'arch/mips/include/asm/mach-jazz/dma-coherence.h')
-rw-r--r-- | arch/mips/include/asm/mach-jazz/dma-coherence.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/mips/include/asm/mach-jazz/dma-coherence.h b/arch/mips/include/asm/mach-jazz/dma-coherence.h new file mode 100644 index 000000000000..d66979a124a8 --- /dev/null +++ b/arch/mips/include/asm/mach-jazz/dma-coherence.h | |||
@@ -0,0 +1,40 @@ | |||
1 | /* | ||
2 | * This file is subject to the terms and conditions of the GNU General Public | ||
3 | * License. See the file "COPYING" in the main directory of this archive | ||
4 | * for more details. | ||
5 | * | ||
6 | * Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org> | ||
7 | */ | ||
8 | #ifndef __ASM_MACH_JAZZ_DMA_COHERENCE_H | ||
9 | #define __ASM_MACH_JAZZ_DMA_COHERENCE_H | ||
10 | |||
11 | #include <asm/jazzdma.h> | ||
12 | |||
13 | struct device; | ||
14 | |||
15 | static dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size) | ||
16 | { | ||
17 | return vdma_alloc(virt_to_phys(addr), size); | ||
18 | } | ||
19 | |||
20 | static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page) | ||
21 | { | ||
22 | return vdma_alloc(page_to_phys(page), PAGE_SIZE); | ||
23 | } | ||
24 | |||
25 | static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr) | ||
26 | { | ||
27 | return vdma_log2phys(dma_addr); | ||
28 | } | ||
29 | |||
30 | static void plat_unmap_dma_mem(dma_addr_t dma_addr) | ||
31 | { | ||
32 | vdma_free(dma_addr); | ||
33 | } | ||
34 | |||
35 | static inline int plat_device_is_coherent(struct device *dev) | ||
36 | { | ||
37 | return 0; | ||
38 | } | ||
39 | |||
40 | #endif /* __ASM_MACH_JAZZ_DMA_COHERENCE_H */ | ||