Messages in this thread | | | Subject | Re: your mail | Date | Thu, 16 May 2002 14:38:05 +0100 (BST) | From | Alan Cox <> |
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> I just want to know how can we restrict the maximum virtual memory and > maximum physical memory on ia64 platform. > kernel. Actually we have a device which can only access 44 bits so we cant
That won't help you. You might not be dealing with RAM at the bottom of the address space. You might also be in platforms with an iommu, or doing DMA to another PCI target
> Tell me something related to this or any link which i can refer
Assuming the device is doing bus mastering. Read Documentation/DMA-mapping.txt - 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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