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Wa_14015360517 mentions situations where HW produces invalid occlusion query results when "Pixel Shader Does not write to RT" bit is set. "When Pixel Shader Kills Pixel is set, SW must perform a dummy render target write from the shader and not set this bit, so that Occlusion Query is correct." Another situation is when writing to UAV or to NULL render target. Patch sets field as 'must be zero' to discourage possible use of it. Signed-off-by: Tapani Pälli <tapani.palli@intel.com> Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20849> |
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