Re: ioremap() vs. ioremap_nocache()

Alan Cox (alan@lxorguk.ukuu.org.uk)
Thu, 4 Oct 2001 21:47:52 +0100 (BST)

> Now, as far as I know, on x86, ioremap() will give write-through
> cached mappings (in the absence of mtrr games). If this is true, how

On x86 ioremap will give mappings appropriate to the object you map - which
means by default it wil give uncached mappings. The PCI hardware will do
intelligent things in certain cases such as write merging

Alan
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