Re: PCI Express support for 2.4 kernel

Linus Torvalds
2003-12-15T22:00:39Z

On Mon, 15 Dec 2003, Jeff Garzik wrote:
>
> neat. dumb question though... how portable is set_fixmap_nocache()?

Not very. Although it should generally be trivial to port if you need it.

> I only see it on four architectures, and I'm sure PCI Express will
> appear on more than that eventually.

On 64-bit architectures you're not likely to ever need to worry about it,
and then you can just map the whole thing directly (and use some special
large-page mapping for it, at that).

Linus