[Intel-gfx] [PATCH 2/2] drm/i915/guc: Turn on GuC/HuC auto mode

[Michal Wajdeczko]

On Wed, 03 Jul 2019 13:40:06 +0200, Chris Wilson  
<chris at chris-wilson.co.uk> wrote:

> Quoting Michal Wajdeczko (2019-07-03 12:36:40)
>> GuC firmware is now mature, so let it run by default.
>> Note that today GuC is only used for HuC authentication.
>
> https://bugs.freedesktop.org/show_bug.cgi?id=110617 ?

Above bug was found on suspicious kernel with old GuC 9.39:

[    2.381803] [drm] HuC: Loaded firmware i915/kbl_huc_ver02_00_1810.bin  
(version 2.0)
[    2.386316] [drm] GuC: Loaded firmware i915/kbl_guc_ver9_39.bin  
(version 9.39)
[    2.438318] [drm:intel_huc_auth] *ERROR* HuC: Firmware not verified  
0x6000
[    2.445235] [drm:intel_huc_auth] *ERROR* HuC: Authentication failed -110
[    2.451975] i915 0000:00:02.0: GuC initialization failed -110

while results from try-bot [1] with 33.0.0 on KBL are looking fine:

[    3.854084] [drm] HuC: Loaded firmware i915/kbl_huc_ver02_00_1810.bin  
(version 2.0)
[    3.865419] [drm] GuC: Loaded firmware i915/kbl_guc_33.0.0.bin (version  
33.0)
[    3.876243] i915 0000:00:02.0: GuC submission disabled
[    3.876245] i915 0000:00:02.0: HuC enabled

Note that newer GuC fixes other known issue [2] that has similar signature:

[160.168623] [drm:intel_huc_auth [i915]] *ERROR* HuC: Firmware not  
verified -110
[160.168839] [drm:intel_huc_auth [i915]] *ERROR* HuC: Authentication  
failed -110
[160.169159] [drm:i915_gem_init_hw [i915]] *ERROR* Enabling uc failed  
(-110)

Michal

[1]  
https://intel-gfx-ci.01.org/tree/drm-tip/Trybot_4514/fi-kbl-7567u/boot0.log
[2] https://bugs.freedesktop.org/show_bug.cgi?id=110820