linux-kernel - Re: Kernel almost hangs when CONFIG_DRM

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Message-ID: <1314640234.2816.118.camel@twins>
Date:	Mon, 29 Aug 2011 19:50:34 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Borislav Petkov <bp@...en8.de>
Cc:	Arnaud Lacombe <lacombar@...il.com>,
	David Airlie <airlied@...hat.com>,
	Michel Dänzer <michel@...nzer.net>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	dri-devel@...ts.freedesktop.org, Pavel Ivanov <paivanof@...il.com>,
	Alex Deucher <alexdeucher@...il.com>,
	Dave Airlie <airlied@...il.com>, linux-kbuild@...r.kernel.org
Subject: Re: Kernel almost hangs when CONFIG_DRM_RADEON=y

On Mon, 2011-08-29 at 19:17 +0200, Borislav Petkov wrote:
> On Mon, Aug 29, 2011 at 12:10:45PM -0400, Arnaud Lacombe wrote:
> > do you want something ala:
> > 
> > config EXTRA_FIRMWARE
> >     string
> >     default ""
> >     append "FOO" if BAR
> >     append "FOZ" if BAZ
> > 
> > or maybe a new type "list" which would behave as a comma/space separated value.
> > 
> > config EXTRA_FIRMWARE
> >     list "bla"
> >     append "FOO" if BAR
> >     append "FOZ" if BAZ
> 
> Yeah, actually Kyle's note (http://lkml.org/lkml/2011/8/29/289) makes
> much more sense for linux and the whole firmware in the kernel deal.
> So it looks like the drivers should be taught to wait for userspace to
> appear instead of Kconfig helping them build-in firmware. And then we
> should go ahead and remove CONFIG_EXTRA_FIRMWARE completely...

That would suck, suppose this radeon thing is the only console you've
got (ppc64/sparc64 don't have text mode iirc) and userspace doesn't come
up?


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