[Bug 110307] [ICL][ffmpeg-qsv/-vaapi/msdk] GPU hang + fail with low-power (HW) HEVC encoding (in first frame)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110307

--- Comment #5 from Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com> ---
According to my interpretation of the error state the execution hangs on
command dw 0x73880080 (HEVC_VP9_RDOQ_STATE) submitted from a batch buffer.

  IPEIR: 0x00000000
  IPEHR: 0x34240010
  INSTDONE: 0xbbffffff
  batch: [0x00000000_018fb000, 0x00000000_018ff000]
  BBADDR: 0x00000000_018fbf45

...
0x018fbf44:      0x73880080: 3D UNKNOWN: 3d_965 opcode = 0x7388
...

Only problem is IPEIR claims execution is not in a batch buffer (bit 3 is not
set) and IPEHR points to something different as well.

INSTDONE says VCS and VIN units are running. I don't know what is the latter.
Is it consistent with the hanging command?

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