git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| 51 | static inline void plat_extra_sync_for_device(struct device *dev) | |
| 52 | { | |
| 53 | return; | |
| 54 | } | |
| 55 | ||
| 56 | static inline int plat_dma_mapping_error(struct device *dev, | |
| 57 | dma_addr_t dma_addr) | |
| 58 | { | |
| 59 | return 0; | |
| 60 | } | |
| 61 | ||
| 9a88cbb5 RB |
62 | static inline int plat_device_is_coherent(struct device *dev) |
| 63 | { | |
| 64 | return 0; | |
| 65 | } | |
| 66 | ||
| 67 | #endif /* __ASM_MACH_JAZZ_DMA_COHERENCE_H */ |