[Bug 101571] Vulkan tests fail on 4.12 drm-tip

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101571

--- Comment #3 from Chris Wilson <chris at chris-wilson.co.uk> ---
It's the use of ASYNC which tells the kernel to skip its implict sync of the
CPU cache, which vulkan is relying upon by accident to flush the CPU cache of
render targets.

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