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9a88cbb5 RB |
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 | ||
43e4f7ae | 15 | static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size) |
9a88cbb5 RB |
16 | { |
17 | return vdma_alloc(virt_to_phys(addr), size); | |
18 | } | |
19 | ||
48e1fd5a DD |
20 | static inline dma_addr_t plat_map_dma_mem_page(struct device *dev, |
21 | struct page *page) | |
9a88cbb5 RB |
22 | { |
23 | return vdma_alloc(page_to_phys(page), PAGE_SIZE); | |
24 | } | |
25 | ||
43e4f7ae | 26 | static inline unsigned long plat_dma_addr_to_phys(struct device *dev, |
3807ef3f | 27 | dma_addr_t dma_addr) |
9a88cbb5 RB |
28 | { |
29 | return vdma_log2phys(dma_addr); | |
30 | } | |
31 | ||
43e4f7ae | 32 | static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr, |
d3f634b9 | 33 | size_t size, enum dma_data_direction direction) |
9a88cbb5 RB |
34 | { |
35 | vdma_free(dma_addr); | |
36 | } | |
37 | ||
843aef49 DD |
38 | static inline int plat_dma_supported(struct device *dev, u64 mask) |
39 | { | |
40 | /* | |
41 | * we fall back to GFP_DMA when the mask isn't all 1s, | |
42 | * so we can't guarantee allocations that must be | |
43 | * within a tighter range than GFP_DMA.. | |
44 | */ | |
45 | if (mask < DMA_BIT_MASK(24)) | |
46 | return 0; | |
47 | ||
48 | return 1; | |
49 | } | |
50 | ||
0acbfc66 RB |
51 | static inline void plat_post_dma_flush(struct device *dev) |
52 | { | |
53 | } | |
54 | ||
9a88cbb5 RB |
55 | static inline int plat_device_is_coherent(struct device *dev) |
56 | { | |
57 | return 0; | |
58 | } | |
59 | ||
60 | #endif /* __ASM_MACH_JAZZ_DMA_COHERENCE_H */ |