On 4/17/20 12:05 PM, Shuah Khan wrote:
Hi Linus,
Linux 5.7-rc1 reboot/powereoff hangs on AMD Ryzen 5 PRO 2400GE system.
I isolated the commit to:
Revering the following commit fixes the problem.
commit 487eca11a321ef33bcf4ca5adb3c0c4954db1b58 Author: Prike Liang Prike.Liang@amd.com Date: Tue Apr 7 20:21:26 2020 +0800
drm/amdgpu: fix gfx hang during suspend with video playback (v2)
The system will be hang up during S3 suspend because of SMU is pending for GC not respose the register CP_HQD_ACTIVE access request.This issue root cause of accessing the GC register under enter GFX CGGPG and can be fixed by disable GFX CGPG before perform suspend.
I can send a revert, however it appears this is a fix for a suspend hang.
thanks, -- Shuah