GPU current settings (core, voltage, DPM, etc.) display

improvement
#1

Any reason we don’t pull the current setting for

image

core freq, voltage, mem freq

the way we pull the power stat image from amdgpu_pm_info?

local power='0'
	[[ -e /sys/kernel/debug/dri/$cardno/amdgpu_pm_info ]] &&
		power=`cat /sys/kernel/debug/dri/$cardno/amdgpu_pm_info | grep -m1 '(average GPU)' | awk '{printf("%d", $1)}'`
	[[ -z power ]] && power='0'

its all there:

 2130 MHz (MCLK)
 1130 MHz (SCLK)
 588 MHz (PSTATE_SCLK)
 1000 MHz (PSTATE_MCLK)
 812 mV (VDDGFX)
 53.239 W (VDDC)
 16.0 W (VDDCI)
 81.158 W (max GPU)
 82.85 W (average GPU)

I’ve ran into a few cases where some of the cards are not at the actual VDDGFX value that amd-oc tried to set. Usually another run of amd-oc fixes it…