in some cases, DXVK creates depth-stencil images that are never transitioned out of VK_IMAGE_LAYOUT_GENERAL. From a D3D11 point of view, these images are only ever used for data transfers, and some of those transfers are implemented via compute shaders, so the usage flags are (TRANSFER_SRC | TRANSFER_DST | SAMPLED).
The problem is that the compute shaders in question read nothing but zeroes when using the GENERAL layout for sampling. It does work correctly when using SHADER_READ_ONLY_OPTIMAL, and it also works fine when setting RADV_DEBUG=nohiz.
Here's a renderdoc capture illustrating the issue:
The bookmarked dispatch call reads the image and packs its contents into a buffer. All buffer values should be 0x00FFFFFF if things work correctly, but are 0x00000000 right now.
The commit which introduced the issue is:
commit 3a2e93147f7fa4a6fd17313353113a33291c5ce0 (refs/bisect/bad)
Author: Samuel Pitoiset <firstname.lastname@example.org>
Date: Thu Mar 14 14:27:03 2019 +0100
radv: always initialize HTILE when the src layout is UNDEFINED
This issue currently breaks the games Lords of the Fallen and The Surge.
Should be fixed with https://cgit.freedesktop.org/mesa/mesa/commit/?id=62a9d757e6074215c145c9637014d9acb16d865d