[Bug 108625] AMDGPU - Can't even get Xorg to start - Kernel driver hangs with ring buffer timeout on ARM64

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108625

--- Comment #11 from Alex Deucher <alexdeucher at gmail.com> ---
Does this patch help?
https://patchwork.freedesktop.org/patch/259364/

Does ARM support write combining?  The driver uses it pretty extensively.  You
might try disabling GTT_USWC (uncached write combined) support in the kernel
driver and just falling back to cached memory.

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