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Miguel Ojeda wrote: > > Sorry, I meant: You can't mmap a RAM address using functions like the > usual remap_pfn_range (as such functions doesn't like physical RAM > addresses, they want I/O ports for example, like 0x378). So, you can't > use smem_start. You need to code your own mmap & nopage function. (It > is explained in LDD3 very well). > well I must admit that I don't understand why... I suppose you refered to that section in ldd3: An interesting limitation of remap_pfn_range is that it gives access only to reserved pages and physical addresses above the top of physical memory. I take a quick look at the implementation of remap_pfn_range() and there's no such limitation I can see (fortunately). Franck - 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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