[Mesa-dev] A question about r600/evergreen documentation

[Marcello Maggioni]

2011/5/31 Marek Olšák <maraeo at gmail.com>:
> I think there are some IP conflicts among gpu vendors regarding
> anisotropic filtering. That's why there is no core support for it in
> OpenGL and that's why anisotropic filtering is undocumented in all the
> AMD docs. Try to search the code, some ANISO registers have been
> figured out, like S_03C000_ANISO you mentioned.
>
> Marek
>
> On Tue, May 31, 2011 at 1:34 PM, Marcello Maggioni <hayarms at gmail.com> wrote:
>> Hello, I was studying the anisotropic filtering patch that was posted
>> on this list the 6th of May in order to understand better how the
>> r600g drivers work, but while reading the patch I noticed that the
>> documentation about r600 I have seems to miss some key information.
>>
>> First of all the documentation I have is the one found on
>> http://www.x.org/docs/AMD/ .
>>
>> In the patch bits [21:19] of the SQ_TEX_SAMPLER_WORD0_0 register are
>> set and in the code these are specified as S_03C000_ANISO, but in the
>> documentation I have (R6xx_3D_Registers.pdf) those bits are specified
>> as "Reserved".
>>
>> I'm wondering if there are better docs around and the ones on that
>> website are outdated. If so where is it possible to find the new docs?
>>
>> Thanks
>>
>> Marcello
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>>
>

I understand , thank you very much.