| .. | .. |
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| 14 | 14 | * OMAP-1510 bus address is translated into a Local Bus address if the |
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| 15 | 15 | * OMAP bus type is lbus. We do the address translation based on the |
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| 16 | 16 | * device overriding the defaults used in the dma-mapping API. |
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| 17 | | - * Note that the is_lbus_device() test is not very efficient on 1510 |
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| 18 | | - * because of the strncmp(). |
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| 19 | 17 | */ |
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| 20 | | -#if defined(CONFIG_ARCH_OMAP15XX) && !defined(__ASSEMBLER__) |
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| 21 | 18 | |
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| 22 | 19 | /* |
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| 23 | 20 | * OMAP-1510 Local Bus address offset |
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| 24 | 21 | */ |
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| 25 | 22 | #define OMAP1510_LB_OFFSET UL(0x30000000) |
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| 26 | | - |
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| 27 | | -#define virt_to_lbus(x) ((x) - PAGE_OFFSET + OMAP1510_LB_OFFSET) |
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| 28 | | -#define lbus_to_virt(x) ((x) - OMAP1510_LB_OFFSET + PAGE_OFFSET) |
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| 29 | | -#define is_lbus_device(dev) (cpu_is_omap15xx() && dev && (strncmp(dev_name(dev), "ohci", 4) == 0)) |
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| 30 | | - |
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| 31 | | -#define __arch_pfn_to_dma(dev, pfn) \ |
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| 32 | | - ({ dma_addr_t __dma = __pfn_to_phys(pfn); \ |
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| 33 | | - if (is_lbus_device(dev)) \ |
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| 34 | | - __dma = __dma - PHYS_OFFSET + OMAP1510_LB_OFFSET; \ |
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| 35 | | - __dma; }) |
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| 36 | | - |
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| 37 | | -#define __arch_dma_to_pfn(dev, addr) \ |
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| 38 | | - ({ dma_addr_t __dma = addr; \ |
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| 39 | | - if (is_lbus_device(dev)) \ |
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| 40 | | - __dma += PHYS_OFFSET - OMAP1510_LB_OFFSET; \ |
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| 41 | | - __phys_to_pfn(__dma); \ |
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| 42 | | - }) |
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| 43 | | - |
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| 44 | | -#define __arch_dma_to_virt(dev, addr) ({ (void *) (is_lbus_device(dev) ? \ |
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| 45 | | - lbus_to_virt(addr) : \ |
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| 46 | | - __phys_to_virt(addr)); }) |
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| 47 | | - |
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| 48 | | -#define __arch_virt_to_dma(dev, addr) ({ unsigned long __addr = (unsigned long)(addr); \ |
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| 49 | | - (dma_addr_t) (is_lbus_device(dev) ? \ |
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| 50 | | - virt_to_lbus(__addr) : \ |
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| 51 | | - __virt_to_phys(__addr)); }) |
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| 52 | | - |
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| 53 | | -#endif /* CONFIG_ARCH_OMAP15XX */ |
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| 54 | 23 | |
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| 55 | 24 | #endif |
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