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anv: maxFragmentShadingRateCoverageSamples is 16 on all platforms

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But before ACM, we need to mis-report it to keep the CTS sane, as the
implementation of coarse pixel seems to have all sorts of wrongs in
older HW.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38641>
This commit is contained in:
Iván Briano 2025-11-24 13:24:28 -08:00 • committed by Marge Bot
parent a7280ab590
commit 978d4b2a99
1 changed files with 4 additions and 2 deletions
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6
src/intel/vulkan/anv_physical_device.c
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@ -1495,8 +1495,10 @@ get_properties(const struct anv_physical_device *pdevice,
props->maxFragmentSizeAspectRatio =
pdevice->info.has_coarse_pixel_primitive_and_cb ?
2 : 4;
props->maxFragmentShadingRateCoverageSamples = 4 * 4 *
(pdevice->info.has_coarse_pixel_primitive_and_cb ? 4 : 16);
props->maxFragmentShadingRateCoverageSamples =
devinfo->verx10 >= 125 ? 16:
4 * 4 * 16; /* Technically wrong, but some CTS tests fail because of the rates we
report on prior platforms. Fixing all of that is a task for another day. */
props->maxFragmentShadingRateRasterizationSamples =
pdevice->info.has_coarse_pixel_primitive_and_cb ?
VK_SAMPLE_COUNT_4_BIT : VK_SAMPLE_COUNT_16_BIT;