Black screens, artefacts and a back trace with PSR-SU on Radeon 660M

When booting without amdgpu.dcdebugmask=0x10 or amdgpu.dcdebugmask=0x200 I get back screens, brief artefacts and a backtrace just using the laptop. With these parameters enabled, these symptoms all vanish.

Running kernel 6.11.2, laptop is a Lenovo Yoga 7 Gen 7 14ARB7 with a Radeon 660M

Created as a new issue, as requested in https://lore.kernel.org/all/MN0PR12MB6101BA1509A6D9B6338EC8E9E2442@MN0PR12MB6101.namprd12.prod.outlook.com/

sudo ./psr.py:

DRI device 0 DMCUB F/W version: 0x04000044
○ PSR 2 with Y coordinates (eDP 1.4a) [3]
○ Sink OUI: Parade
○ resv_40f: 01
○ ID String: 08-01
○ PSR Status: 00-00-02

Attached a dmesg log: dmesg.log