[Bug 206141] VCE UVD ring test failed -110

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=206141

--- Comment #8 from Alex Deucher (alexdeucher at gmail.com) ---
(In reply to Janpieter Sollie from comment #7)
> Is it possible to disable the UVD/VCE engine on the original GPU?
> I mean, it's not used anyway, so I might as well disable it completely to
> avoid these errors.

Yes.  Set the amdgpu.ip_block_mask module parameter on the kernel command line
in grub.  Each bit refers to an IP.  From your log:

[    3.987749] [drm] add ip block number 0 <vi_common>
[    3.987750] [drm] add ip block number 1 <gmc_v8_0>
[    3.987751] [drm] add ip block number 2 <tonga_ih>
[    3.987752] [drm] add ip block number 3 <gfx_v8_0>
[    3.987753] [drm] add ip block number 4 <sdma_v3_0>
[    3.987753] [drm] add ip block number 5 <powerplay>
[    3.987754] [drm] add ip block number 6 <dm>
[    3.987755] [drm] add ip block number 7 <uvd_v6_0>
[    3.987755] [drm] add ip block number 8 <vce_v3_0>

bits 7 and 8 are for uvd and vce, so you can append amdgpu.ip_block_mask=0x7f
to only enable blocks 0-6.

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