few kms tests - dmesg-warn/dmesg-fail - invalid GSC reply length

http://gfx-ci.igk.intel.com/cibuglog-ng/testresult/1601340454?query_key=6a6a6442048926a235a4ffa607da815b5b325eb4

<7> [18039.420296] i915 0000:00:02.0: [drm:intel_modeset_verify_crtc [i915]] [CRTC:233:pipe D]
<7> [18039.421059] i915 0000:00:02.0: [drm:intel_opregion_resume [i915]] 5 outputs detected
<7> [18039.421729] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [CONNECTOR:236:eDP-1]
<7> [18039.421989] i915 0000:00:02.0: [drm:intel_power_well_enable [i915]] enabling AUX_A
<7> [18039.423559] i915 0000:00:02.0: [drm:intel_pps_vdd_on_unlocked [i915]] [ENCODER:235:DDI A/PHY A] PPS 0 turning VDD on
<7> [18039.423832] i915 0000:00:02.0: [drm:wait_panel_power_cycle [i915]] [ENCODER:235:DDI A/PHY A] PPS 0 wait for panel power cycle
<7> [18039.424154] i915 0000:00:02.0: [drm:wait_panel_status [i915]] [ENCODER:235:DDI A/PHY A] PPS 0 mask: 0xb800000f value: 0x00000000 PP_STATUS: 0x00000000 PP_CONTROL: 0x00000060
<7> [18039.424390] i915 0000:00:02.0: [drm:wait_panel_status [i915]] Wait complete
<7> [18039.424707] i915 0000:00:02.0: [drm:intel_pps_vdd_on_unlocked [i915]] [ENCODER:235:DDI A/PHY A] PPS 0 PP_STATUS: 0x00000000 PP_CONTROL: 0x00000068
<7> [18039.424949] i915 0000:00:02.0: [drm:intel_pps_vdd_on_unlocked [i915]] [ENCODER:235:DDI A/PHY A] PPS 0 panel power wasn't enabled
<7> [18039.454998] i915 0000:00:02.0: [drm:i915_audio_component_get_power [i915]] restored AUD_FREQ_CNTRL to 0x8010
<6> [18039.460715] i915 0000:00:02.0: [drm] GT1: Loaded GSC firmware i915/mtl_gsc_1.bin (cv1.0, r102.0.0.1655, svn 1)
<3> [18039.465073] i915 0000:00:02.0: [drm] *ERROR* GT1: HuC: invalid GSC reply length 36 [expected 52]
<3> [18039.465100] i915 0000:00:02.0: [drm] *ERROR* GT1: HuC: all workloads authentication failed -EPROTO
<7> [18039.495029] i915 0000:00:02.0: [drm:intel_get_hpd_pins [i915]] hotplug event received, stat 0x00010000, dig 0x0000000a, pins 0x00000010, long 0x00000010
<7> [18039.495248] i915 0000:00:02.0: [drm:intel_hpd_irq_handler [i915]] digital hpd on [ENCODER:235:DDI A/PHY A] - long
<7> [18039.495454] i915 0000:00:02.0: [drm:intel_hpd_irq_handler [i915]] Received HPD interrupt on PIN 4 - cnt: 10
<7> [18039.495856] i915 0000:00:02.0: [drm:intel_dp_hpd_pulse [i915]] ignoring long hpd on eDP [ENCODER:235:DDI A/PHY A]
<6> [18039.540731] ata5: SATA link down (SStatus 4 SControl 300)
<6> [18039.541211] ata6: SATA link down (SStatus 4 SControl 300)
<6> [18039.541397] ata7: SATA link down (SStatus 4 SControl 300)
<6> [18039.541794] ata8: SATA link down (SStatus 4 SControl 300)
<7> [18039.582919] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling PW_B
<7> [18039.583362] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling PW_C
<7> [18039.583771] i915 0000:00:02.0: [drm:intel_power_well_disable [i915]] disabling PW_D
<7> [18039.631558] i915 0000:00:02.0: [drm:intel_dp_get_dsc_sink_cap [i915]] DSC DPCD: 01 11 00 02 01 00 01 80 06 01 06 00 08 00 00 00
<7> [18039.631885] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] FEC CAPABILITY: 0
<7> [18039.632883] i915 0000:00:02.0: [drm:intel_dp_detect [i915]] [ENCODER:235:DDI A/PHY A] MST support: port: no, sink: no, modparam: yes
<7> [18039.633163] i915 0000:00:02.0: [drm:intel_dp_print_rates [i915]] source rates: 162000, 216000, 243000, 270000, 324000, 432000, 540000, 675000
<7> [18039.633478] i915 0000:00:02.0: [drm:intel_dp_print_rates [i915]] sink rates: 162000, 270000