Messages in this thread | | | Date | Sat, 15 Dec 2007 08:08:31 +0000 | From | Paul Rolland <> | Subject | Re: [PATCH] x86_64: fix problems due to use of "outb" to port 80 on some AMD64x2 laptops, etc. |
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Hello,
On Fri, 14 Dec 2007 23:29:55 +0000 Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> On Fri, 14 Dec 2007 14:13:46 -0800 > "H. Peter Anvin" <hpa@zytor.com> wrote: > > > Pavel Machek wrote: > > > On Fri 2007-12-14 10:02:57, H. Peter Anvin wrote: > > > > How long will that take to boot on a 386? > > Well the dumb approach to fix that would seem to be to initialise it to > > cpu->family 3 -> 50MHz 4 -> 300Mhz 5-> etc...
Just an idea : from what I've read, the problem (port 80 hanging) only occurs on 'modern' machines... So why not : - use port 80 for old CPUs (PII, PIII) where it has never really been a problem, - use the cpu->family to do a best match for CPU freq thus we could avoid increasing boot time too much...
Paul
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