Messages in this thread |  | | Subject | Re: ioremap() vs. ioremap_nocache() | Date | Fri, 5 Oct 2001 15:39:51 +0100 (BST) | From | Alan Cox <> |
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> Alan> On x86 ioremap will give mappings appropriate to the object you > Alan> map - which means by default it wil give uncached mappings. The > Alan> PCI hardware will do intelligent things in certain cases such as > Alan> write merging > > Are you thereby saying that ioremap() and ioremap_nocache() are > identical on the x86?
In certain peculiar cases - no. Think about an ioremap of an object mapped onto the system bus as RAM. - 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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