[PATCH 0/5] GuC fixes++

[Michal Wajdeczko]

New GuC firmware that uses CTB will not pass live_hangcheck selftest due to:

<3> [508.613024] [drm:intel_guc_send_mmio [i915]] *ERROR* MMIO: GuC action 0x4506 failed with error -110 0x4506
<3> [508.613142] [drm:guc_action_deregister_ct_buffer [i915]] *ERROR* CT: deregister SEND buffer failed; owner=0 err=-110
<3> [508.623521] [drm:intel_guc_send_mmio [i915]] *ERROR* MMIO: GuC action 0x4506 failed with error -110 0x4506
<3> [508.623573] [drm:guc_action_deregister_ct_buffer [i915]] *ERROR* CT: deregister RECV buffer failed; owner=0 err=-110

[1] https://patchwork.freedesktop.org/series/60276/
[2] https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_4257/fi-icl-u3/igt@i915_selftest@live_hangcheck.html


Michal Wajdeczko (5):
  drm/i915/uc: Use GuC firmware status helper
  drm/i915/uc: Explicitly sanitize GuC/HuC on failure and finish
  drm/i915/uc: Skip GuC HW unwinding if GuC is already dead
  drm/i915/uc: Fini GuC submission during reset prepare
  drm/i915/uc: Don't forget to prepare GuC for the reset

 drivers/gpu/drm/i915/gt/intel_reset.c |  4 ++++
 drivers/gpu/drm/i915/intel_uc.c       | 31 +++++++++++++++++++++------
 2 files changed, 28 insertions(+), 7 deletions(-)

-- 
2.19.2