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isl: disable mcs (and mcs+ccs) for color msaa on DG2

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Fixes lots of various test failures in:
   dEQP-VK.pipeline.multisample.min_sample_shading_disabled.*
   dEQP-GLES3.functional*multisample.*
   KHR-GL*sample_variables.*

Cc: mesa-stable
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Acked-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13991>
(cherry picked from commit d3ef3657b2)
This commit is contained in:
Tapani Pälli 2022-04-23 09:29:08 +03:00 • committed by Dylan Baker
parent fee14d8481
commit 05b5eb66e9
2 changed files with 5 additions and 1 deletions
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2
.pick_status.json
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@ -180,7 +180,7 @@
"description": "isl: disable mcs (and mcs+ccs) for color msaa on DG2",
"nominated": true,
"nomination_type": 0,
"resolution": 0,
"resolution": 1,
"because_sha": null
},
{

4
src/intel/isl/isl.c
View file

@ -2097,6 +2097,10 @@ isl_surf_get_mcs_surf(const struct isl_device *dev,
if (surf->msaa_layout != ISL_MSAA_LAYOUT_ARRAY)
return false;
/* We are seeing failures with mcs on dg2, so disable it for now. */
if (intel_device_info_is_dg2(dev->info))
return false;
/* The following are true of all multisampled surfaces */
assert(surf->samples > 1);
assert(surf->dim == ISL_SURF_DIM_2D);