[Bug 102296] R9 285 VCE corruption since drm/amdgpu/gmc8: use the vram location programmed by the vbios

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102296

--- Comment #6 from Andy Furniss <adf.lists at gmail.com> ---
Created attachment 133611
  --> https://bugs.freedesktop.org/attachment.cgi?id=133611&action=edit
dmesg with patch

No, the encode fails differently though, throwing lots of

amdgpu: The CS has been cancelled because the context is lost.

and in dmesg

[  103.116736] [drm:amdgpu_vce_cs_reloc [amdgpu]] *ERROR* BO to small for addr
0x010cf1e000 156 155

This is actually familiar looking as current mesa + vaapi would do this since a
patch from march.

I am testing this using OMX and have never see that do it before. The issue I
bisected was outputting with no errors from the encoder, a corrupt stream - it
was playable and looked good to start with, it just degraded as time went on
with the decoder throwing h264 errors.

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