https://bugs.freedesktop.org/show_bug.cgi?id=106188
Bug ID: 106188
Summary: Can't successfully set pstates in pp_od_clk_voltage
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: tempel.jul...@gmail.com
Hello,
I specified "amdgpu.ppfeaturemask=0xffffffff" as a boot parameter so I could
access "/sys/class/drm/card0/device/pp_od_clk_voltage".
The pstate table for source and memory clocks looks correct.
When I run "echo "s 7 1209 900" /sys/class/drm/card0/device/pp_od_clk_voltage",
it returns "s 7 1209 900 /sys/class/drm/card0/device/pp_od_clk_voltage".
When I run "echo "c" /sys/class/drm/card0/device/pp_od_clk_voltage" afterwards,
it returns "c /sys/class/drm/card0/device/pp_od_clk_voltage".
However, the change is not applied. When I do "cat
/sys/class/drm/card0/device/pp_od_clk_voltage", it still says "7: 1196Mhz
1006 mV".
And when I run "watch -n 0.5 cat /sys/kernel/debug/dri/0/amdgpu_pm_info", it
reports
" 1196 MHz (SCLK)
981 mV (VDDGFX)
".
Am I making a mistake somewhere or should it work like this?
I also tried "echo "manual" >
/sys/class/drm/card0/device/power_dpm_force_performance_level" and setting
pstates 5-7, but that didn't help either.
In the documentation, I read that pp_od_clk_voltage should also include
OD_range, but it's not there for me.
Linux drm-next-4.18-wip 4.16.1.52132fd03
MSI RX 560 Aero ITX
Thanks!
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