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Nagendra Singh Tomar wrote: > ioremap() function in x86 arch code does not seem to be setting _PAGE_PCD > bit in the PTE. How then does it give non-cached mapping to MMIO mappings > for memory on some interface card. I have gone thru some old threads on > this, which have concluded that it does give non-cached mappings, and > moerover ioremap seems to work fine whenever I have used to map any PCI > card memory, > Is it guaranteed thru the means of MTRR ? > ioremap_nocache() -- Brian Gerst - 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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