Bug 219556 - AMDGPU monitoring is broken
Summary: AMDGPU monitoring is broken
Status: RESOLVED ANSWERED
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: AMD Linux
: P3 normal
Assignee: drivers_video-dri
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-12-04 07:39 UTC by Hanabishi
Modified: 2024-12-04 10:39 UTC (History)
0 users

See Also:
Kernel Version: 6.13-rc1
Subsystem:
Regression: Yes
Bisected commit-id: 831c1926ee728c3e747255f7c0f434762e8e863d

Attachments
Add an attachment (proposed patch, testcase, etc.)

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
Note You need to log in before you can comment on or make changes to this bug.