[PATCH 4/4] drm/amdgpu: extend profiling mode.

Alex Deucher alexdeucher at gmail.com
Wed Feb 1 14:42:44 UTC 2017

On Tue, Jan 31, 2017 at 6:19 PM, Andy Furniss <adf.lists at gmail.com> wrote:
> Andy Furniss wrote:
>> Rex Zhu wrote:
>>> in profiling mode, powerplay will fix power state
>>> as stable as possible.and disable gfx cg and LBPW feature.
>>> profile_standard: as a prerequisite, ensure power and thermal
>>> sustainable, set clocks ratio as close to the highest clock
>>> ratio as possible.
>>> profile_min_sclk: fix mclk as profile_normal, set lowest sclk
>>> profile_min_mclk: fix sclk as profile_normal, set lowest mclk
>>> profile_peak: set highest sclk and mclk, power and thermal not
>>> sustainable
>>> profile_exit: exit profile mode. enable gfx cg/lbpw feature.
>> Testing R9 285 Tonga on drm-next-4.11-wip
>> This commit has the effect that doing
>> echo high > /sys/class/drm/card0/device/power_dpm_force_performance_level
>> instantly forces fan to (I guess) max, where normally it doesn't
>> need anything like as fast with the clocks high when doing nothing else.
> Ping - just in case this got missed, still the same on current
> drm-next-4.11-wip

Just a heads up, Rex was looking at this, but it's Chinese New Year this week.


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