https://bugs.freedesktop.org/show_bug.cgi?id=99476
Bug ID: 99476
Summary: Forcing perf level to high doesn't change memory clock
Product: DRI
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: samuel.pitoi...@gmail.com
Hi,
After changing the current performance level with:
echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level
only the shader clock is updated but not the memory clock.
# cat /sys/kernel/debug/dri/0/amdgpu_pm_info
[ mclk ]: 300 MHz
[ sclk ]: 1306 MHz
# cat /sys/class/drm/card0/device/pp_dpm_sclk
0: 300Mhz
1: 608Mhz
2: 910Mhz
3: 1077Mhz
4: 1145Mhz
5: 1191Mhz
6: 1236Mhz
7: 1306Mhz *
# cat /sys/class/drm/card0/device/pp_dpm_mclk
0: 300Mhz *
1: 1750Mhz
Same issue if I choose the manual mode and try to echo 1 in pp_dpm_mclk.
Tested on Linux 4.8 with RX480.
Thanks!
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