Bug 219556

Summary: AMDGPU monitoring is broken
Product: Drivers Reporter: Hanabishi (i.r.e.c.c.a.k.u.n+bugzilla.kernel.org)
Component: Video(DRI - non Intel)Assignee: drivers_video-dri
Status: RESOLVED ANSWERED    
Severity: normal    
Priority: P3    
Hardware: AMD   
OS: Linux   
Kernel Version: 6.13-rc1 Subsystem:
Regression: Yes Bisected commit-id: 831c1926ee728c3e747255f7c0f434762e8e863d

Description Hanabishi 2024-12-04 07:39:04 UTC 
In 6.13-rc1, AMDGPU monitoring is broken. Many sysfs knobs simply output nothing. For example:

# cd /sys/class/drm/card1/device
# <gpu_busy_percent
# <pp_dpm_sclk
# <pp_od_clk_voltage
# <hwmon/hwmon6/temp1_input

Otherwise the kernel log seems to be totally fine and GPU itself appears to work normally.

I tried AMD GPUs of different generations, so it doesn't appear to be series/model specific.

I have done a bisection though.

first bad commit: [831c1926ee728c3e747255f7c0f434762e8e863d] Merge tag 'uml-for-linus-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux
Comment 1 Artem S. Tashkinov 2024-12-04 10:20:45 UTC 
Please repost here https://gitlab.freedesktop.org/drm/amd/-/issues