15-rc1: radeon modesetting fails

[Alex Deucher]

On Tue, Apr 15, 2014 at 8:07 AM, Borislav Petkov <bp at alien8.de> wrote:
> Hi Christian,
>
> On Tue, Apr 15, 2014 at 11:28:55AM +0200, Christian König wrote:
>> Hi Borislav,
>>
>> that's a known issue and should be fixed in the next rc, see this
>> bugreport: https://bugs.freedesktop.org/show_bug.cgi?id=77009
>>
>> You might also want to try my branch with 3.15 fixes which includes
>> the necessary patch for this: http://cgit.freedesktop.org/~deathsimple/linux/log/?h=drm-fixes-3.15-wip
>>
>> Let me know if that branch works for you or not.
>
> so I went and merged your branch as you suggested. Btw, on its tip it
> has:
>
> commit ec02666dd0791312b5820e1a9a023681d99d07ec
> Author: Quentin Casasnovas <quentin.casasnovas at oracle.com>
> Date:   Tue Mar 18 17:16:52 2014 +0100
>
>     drm/radeon: memory leak on bo reservation failure. v2
>
> (just checking whether I got the right one)
>
> and, unfortunately, no change - same problem. Let me know if I should
> bisect the subset of 59 radeon patches which went in during the merge
> window...
>
> Btw, just in case, I went and updated radeon firmware in
> /lib/firmware/radeon/ from upstream but it didn't change anything.

Does reverting:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=32167016076f714f0e35e287fbead7de0f1fb179
fix the issue?  We may need to tweak the pll parameters for older asics.

Alex

>
> Thanks.
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