radv: Do a cache flush if needed before reading predicates. (!54) · Merge requests · Mesa / mesa

Bas Nieuwenhuizen requested to merge bnieuwenhuizen/mesa:conditional-rendering-flush-fix into master Dec 31, 2018

This caused random failures for two conditional rendering tests:

dEQP-VK.conditional_rendering.draw_clear.draw.update_with_rendering_discard
dEQP-VK.conditional_rendering.draw_clear.draw.update_with_rendering_no_discard

These wrote the predicate with the vertex shader, did a barrier and then started the conditional rendering. However the cache flushes for the barrier only happen on first draw, so after the predicate has been read.

Fixes: e45ba51e "radv: add support for VK_EXT_conditional_rendering"

Edited Dec 31, 2018 by Bas Nieuwenhuizen

radv: Do a cache flush if needed before reading predicates.

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