Skip to content

tu/a7xx: support 8x MSAA

Zan Dobersek requested to merge zdobersek/mesa-fork:work/tu_msaa_8x into main

What does this MR do and why?

tu/a7xx: support 8x MSAA

a7xx hardware has 8x MSAA capabilities we can expose. The 8-bit sample
count flag is included in the supported sample counts when computing image
format properties for MSAA-capable image creation conditions, with the
exception of 128-bit formats that don't support 8x MSAA.

UBWC blocksize logic is updated to cover cases of 16-bit and 32-bit formats
that support 8x MSAA. The per-cpp blocksize array is adjusted to also cover
128-byte values for which UBWC has to be disabled anyway.

VK_EXT_sample_locations implementation is adjusted to support sampling in
up to 8 locations, achieved by writing into additional sample location
registers.

Signed-off-by: Zan Dobersek <zdobersek@igalia.com>
Edited by Zan Dobersek

Merge request reports