From: Nigel Cunningham <ncunningham@linuxmail.org>
To: Zwane Mwaikambo <zwane@linuxpower.ca>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: MTRR driver model support broken on SMP.
Date: Wed, 04 Aug 2004 15:31:25 +1000 [thread overview]
Message-ID: <1091597484.3191.90.camel@laptop.cunninghams> (raw)
In-Reply-To: <Pine.LNX.4.58.0408040128490.19619@montezuma.fsmlabs.com>
Hi.
On Wed, 2004-08-04 at 15:31, Zwane Mwaikambo wrote:
> On Wed, 4 Aug 2004, Nigel Cunningham wrote:
>
> > > Looking at this i'm really curious as to whether we need to bother at all,
> > > can you remove the mtrr restore code and then compare /proc/mtrr before
> > > and after suspending.
> >
> > I haven't had problems but do remember 2.4 users who had trouble with X
> > before code to save and restore mtrrs was added.
>
> Ahh yes, X11 will create an additional entry on startup whilst the
> boot MTRR settings don't have it.
Okay. So the question then is how to get them restored. I don't
understand much about the driver model, but it seems to me that all we
should need it get to mtrr save/restore done from the
drivers_suspend/resume calls, which do have interrupts enabled. But how
to achieve that...
Nigel
next prev parent reply other threads:[~2004-08-04 5:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-04 2:07 MTRR driver model support broken on SMP Nigel Cunningham
2004-08-04 5:23 ` Zwane Mwaikambo
2004-08-04 5:22 ` Nigel Cunningham
2004-08-04 5:31 ` Zwane Mwaikambo
2004-08-04 5:31 ` Nigel Cunningham [this message]
2004-08-04 21:15 ` Zwane Mwaikambo
2004-08-04 22:24 ` Nigel Cunningham
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