linux-kernel - Re: [rft] s2ram wakeup moves to .c, could fix few machines

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Date:	Thu, 7 Feb 2008 23:28:45 +0100
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	kernel list <linux-kernel@...r.kernel.org>,
	Linux-pm mailing list <linux-pm@...ts.osdl.org>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [rft] s2ram wakeup moves to .c, could fix few machines

Hi!

> > > > This rewrites wakeup code to .c, and it fixes stack (should use movl
> > > > ,%esp, not movw). Testers wanted. Makefile infrastructure was done by
> > > > hpa, cleanups by rjw.
> > > 
> > > I'll test it tomorrow
> > 
> > Works on my nx6325 (good sign, the box is easy to break ;-)).
> > 
> > > and I still have some more cleanups (I was distracted by a nasty scheduler
> > > issue in the current mainline).
> > 
> > The cleanups are still in the works (sorry).
> 
> Below is a version with some easy cleanups, rebased on top of the patches that
> move the 64-bit hibernation code to arch/x86/power .

Can you post a delta against my versoin? I do not see any changes from
a quick glance.

This is probably more acceptable version of beep; but there are
probably even better ways to clean it...

        if (wakeup_header.realmode_flags & 4) {
                inb(97);
                outb(0, 0x80);
                outb(3, 97);
                outb(0, 0x80);
                outb(-74, 67);
                outb(0, 0x80);
                outb(-119, 66);
                outb(0, 0x80);
                outb(15, 66);
        }

...like the version that makes beep/pause/beep/pause, so that user can
count them.

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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