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SubjectRe: [PATCH] make my life easier ...
Date
From
"H. Peter Anvin" <hpa@zytor.com> writes:
> Followup to: <20001025134252.A1024@albireo.ucw.cz>
> By author: Martin Mares <mj@suse.cz>
> In newsgroup: linux.dev.kernel
> >
> > This doesn't make much sense to me: Why don't we just reinitialize the timings
> > as we do when programming the chipset instead of saving/restoring the state?
> >
> > Also, are you sure BIOSes don't save the IDE controller state when suspending?

I my experience, BIOSes do not do anything that you might expect them to :-)
(and usually do things you don't want them to ...)

> Wrong question. The proper question is "are we not sure the BIOS
> doesn't save..." and the answer is "with all the buggy BIOSes out
> there, of course not."
>
> Seriously. Relying on the BIOS any more than the absolutely necessary
> minimum is way dangerous.

Also, we need to plan for ACPI where we have to do all the power management
ourselves ...

Cheers,
Stephen
--
Stephen Rothwell, Open Source Researcher, Linuxcare, Inc.
+61-2-62628990 tel, +61-2-62628991 fax
sfr@linuxcare.com, http://www.linuxcare.com/
Linuxcare. Support for the revolution.
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