Messages in this thread | | | Subject | Re: your mail | Date | Thu, 16 May 2002 19:05:43 +0100 (BST) | From | Alan Cox <> |
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> No actually i don't want that for DMA it is for diffrent requirment. > actually in our device there is a page table in device which have > virtual to physical address translation we save virtual address in device > and corresponding physical address. but we can store only upto 44 bit > information of virtual address thats why i want that.
Still read Documentation/DMA-mapping.txt
Whether its DMA or not you are going to need to keep the allocations below 44bits and thats what the DMA allocators do - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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