[Nouveau] [Bug 75776] [NV50 gallium] Hearthstone displays corrupted buffers

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75776

--- Comment #14 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to comment #13)
> I also face this issue, I have NV4x card

No, you don't. You face an entirely different and unrelated issue. You can open
a separate bug for it.

> [  175.238926] nouveau E[  PGRAPH][0000:01:00.0]  ERROR nsource: DATA_ERROR
> nstatus: BAD_ARGUMENT
> [  175.238962] nouveau E[  PGRAPH][0000:01:00.0] ch 3 [0x0013c000
> Hearthstone.exe[734]] subc 7 class 0x4097 mthd 0x0208 data 0x04040242

Hmmmm....

$ lookup -a 49 -d NV01_SUBCHAN -- -v obj-class NV40_3D 208 0x04040242
RT_FORMAT => { COLOR = 0x2 | ZETA = Z24S8 | TYPE = SWIZZLED | LOG2_WIDTH = 4 |
LOG2_HEIGHT = 4 }

COLOR = 0x2? That's odd. Might need to investigate how this can happen... might
just be something missing in rnndb.

> [  175.248385] nouveau E[  PGRAPH][0000:01:00.0]  ERROR nsource: DATA_ERROR
> nstatus: BAD_ARGUMENT
> [  175.248420] nouveau E[  PGRAPH][0000:01:00.0] ch 3 [0x0013c000
> Hearthstone.exe[734]] subc 7 class 0x4097 mthd 0x0208 data 0x04040243

$ lookup -a 49 -d NV01_SUBCHAN -- -v obj-class NV40_3D 208 0x04040243
RT_FORMAT => { COLOR = R5G6B5 | ZETA = Z24S8 | TYPE = SWIZZLED | LOG2_WIDTH = 4
| LOG2_HEIGHT = 4 }

Ah yes, I know this issue well. Mixing 16-bit color and 32-bit zeta
(depth/stencil) attachments to an FBO. Not supported by the hardware, and the
driver doesn't "fix" it up either.

In any case, totally unrelated to the issue on the nva5 originally reported.

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