[Bug 72361] AMD APU reset infinite

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--- Comment #7 from ArLi Weng <arliweng@xxxxxxxxx> ---
(In reply to Zhang Rui from comment #6)
> can you please git bisect which commit introduces this problem?

i don't known, maybe

for now, radeon.dpm=0 work but gpu clock is wrong(3d game too bad), that are
800MHz but 

#cat /sys/kernel/debug/dri/0/radeon_pm_info
default engine clock: 200000 kHz
current engine clock: 200000 kHz

on radeon.dpm=-1 without acpi_cpufreq:

#cat /sys/kernel/debug/dri/0/radeon_pm_info
uvd    vclk: 0 dclk: 0
power level 0    sclk: 30400 vddc: 949

is this case i don't knwon what's freq now but 3d game work fine, and reset
infinite same time, i must boot to lts-kernel(3.10.42) before(boot to 3.10 then
shutdown to next 3.14) kernel(3.14.5)

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