Re: readsw/writesw readsl/writesl

Alan Cox (alan@lxorguk.ukuu.org.uk)
27 Aug 2002 18:25:24 +0100

On Tue, 2002-08-27 at 08:30, David S. Miller wrote:
> The only reason insl() exists is because the x86 has special
> instructions to perform that operation.
>
> It used to be an optimization when cpus were really slow.

readsl becomes relevant once people start shipping bridges that can do
asynchronous pci mmio read or burst mode to order however

I wonder if thats something we should plan for now ?

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