[Mesa-dev] [PATCH v2 01/13] nvc0: bind driver cb for compute on c7[] for Kepler

[Ilia Mirkin]

On Fri, Apr 1, 2016 at 11:16 AM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
> On Fri, Apr 1, 2016 at 10:20 AM, Samuel Pitoiset
> <samuel.pitoiset at gmail.com> wrote:
>>
>>
>> On 04/01/2016 07:21 AM, Ilia Mirkin wrote:
>>>
>>> As I recall, we already upload ms offsets for fs. Perhaps reuse the same
>>> spot for these CP ones? What are they used for, anyways? Can't think of
>>> anything offhand, but perhaps opencl needs something funky?
>>
>>
>> Where do we upload ms offset for fs ? Because msInfoBase is set to 0 for 3d.
>
> Look at gl_SamplePosition handling. Looking at the code, that's the
> SAMPLE_INFO stuff.
>
>>
>> For compute, they are used in NVC0LoweringPass::adjustCoordinatesMS() which
>> is called from processSurfaceCoordsNVE4(), so I think they are useful for
>> compute. :-)
>
> oooooh... those are different. I see what goes in there. Clever.
> Hmmm... how did I do this on nv50? Same issue there (but for
> texturing). Oh, looks like I use this same thing... msInfoBase.
>
>   -ilia

Aha, but this stuff will *just* fit above textures and before 0x100.
And then you can put UBO's at 0x100..0x200. Problem solved?