[PATCH 4/4] drm/amdgpu: extend profiling mode.
Rex.Zhu at amd.com
Mon Feb 6 11:56:21 UTC 2017
Sorry for the late response.
Yes, I set the fan speed to max in this patch when user set high performance.
Considering that: 1. set fan speed to max is helpful to let GPU run under highest clock as long as possible.
2. avoid GPU rapid temperature rise in some case.
From: Andy Furniss [mailto:adf.lists at gmail.com]
Sent: Wednesday, February 01, 2017 11:37 PM
To: Alex Deucher
Cc: Zhu, Rex; amd-gfx list
Subject: Re: [PATCH 4/4] drm/amdgpu: extend profiling mode.
Alex Deucher wrote:
> 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
>>>> 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 >
>>> 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
> Just a heads up, Rex was looking at this, but it's Chinese New Year this week.
OK, thanks & Happy new year.
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