Timeout initializing Falcon after cold boot

Submitted by Andrey Taranov

Assigned to Nouveau Project

Link to original bug (#110931)

Description

Created attachment 144579
Failing kernel log

I've got a fairly recent Dell/Alienware GTX 1080. It fails on initializing/resetting the Falcon during boot, and is not usable by Xorg subsequently. See *-bad.log attachments.

Workaround: boot into Windows, and reboot into Linux. Everything works fine after that. See *-good.log attachments.

Initialization timeout happens in acr_ls_sec2_post_run(), in ls_ucode_msgqueue.c. The corresponding Xorg driver error message is "Failed to initialise context object: 2D_NVC0 (0)"

Attachment 144579, "Failing kernel log":
dmesg-bad.log