Fwd: Re: regression on RV280 card freeze, patch not applicable any more

Jochen Rollwagen joro-2013 at t-online.de
Fri Oct 18 06:32:18 PDT 2013

sorry about that.

Anyway, i checked drivers/gpu/drm/radeon and 
drivers/char/agp/uninorth-agp.c and can't seem to find the patch 
indicated below. Might it have gone missing :-) ?

Am 08.10.2013 18:41, schrieb Michel Dänzer:
> [ Please always follow up to the mailing list ]
> On Die, 2013-10-08 at 14:53 +0200, Jochen Rollwagen wrote:
>> Am 08.10.2013 10:03, schrieb Michel Dänzer:
>>> On Sam, 2013-10-05 at 15:13 +0200, Jochen Rollwagen wrote:
>>>> I’m running a RV280 based Radeon 9200 card (I know, an ancient card)
>>>> in a Mac Mini G4 (powerpc-architecture) with Ubuntu Precise and the
>>>> latest 3.4.64-kernel/ati driver and get lockups when trying to run the
>>>> card in AGP mode (KMS enabled). The lockups happen when resetting the
>>>> card (that’s what I can infer from the oops-screen).
>>> It's the other way around: The kernel radeon driver resets the card to
>>> try and get it running again after a lockup.
>>>> PCI mode works. After researching I found a old bug that was fixed
>>>> back in 2006 (https://bugs.freedesktop.org/show_bug.cgi?id=6011) that
>>>> looks like the freeze I experience (since PCI mode – which allocates
>>>> 64 MB of memory - works and AGP mode which by default allocates 256 MB
>>>> doesn’t). The card has 64 mb memory.
>>>> So the first question is, could this be the problem that causes the
>>>> lockups ?
>>> Not really. The GART and VRAM memory apertures aren't directly related,
>>> and the fix for the bug above should still be incorporated in the
>>> current radeon KMS code.
>>> Does radeon.agpmode=1 or radeon.agpmode=4 work?
>> Thank you for your reply. First, none of the agpmodes work, they just
>> take more or less time to lockup the card (1 - slowest, 4 fastest).
>> Secondly, if you write that the fix "should be incorporated in the
>> current code", i'm somewhat lost because it definitely isn't there.
> It's in the kernel now.
Well........no. I checked the 3.4.64 kernel sources after my last Mail
and the code isn't in the drivers/gpu/drm/radeon sources. But of course
i might have overlooked something.

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