[PATCH 4/4] drm/amd/pp: Implement set_power_profile_mode on smu7
Zhu, Rex
Rex.Zhu at amd.com
Wed Jan 24 23:05:11 UTC 2018
Hi Felix,
The logic of gfx/computer profile setting works in such way as you said,need under “auto” state.
But in new sysfs of power profile setting, we do not check the performance
Level.
And The “manual” state is a confusing flag，when user set manual state，and then change the clk range through pp-dpm-sclk/mclk，the dpm still works automatically in new clock range, I think we can remove this flag.
So My idea is
in the sysfs of pp dpm sclk/mclk, user can set clock range.
In the sysfs of power profile state, user can configure the parameters smu/driver exposed. They are independent.
Best Regards
Rex
________________________________
From: Kuehling, Felix
Sent: Thursday, January 25, 2018 5:41:43 AM
To: Zhu, Rex; Huang, JinHuiEric; amd-gfx at lists.freedesktop.org
Subject: Re: [PATCH 4/4] drm/amd/pp: Implement set_power_profile_mode on smu7
Hi Rex,
As I understand it (the way power profiles currently work),
pp_dpm_sclk/mclk only apply if pp_dpm_force_performance_level is set to
"manual". Power profiles and automatic switching between profiles only
happens when pp_dpm_force_performance_level is set to "auto".
This means pp_dpm_sclk/mclk don't apply when profiles are in effect.
Also, there would be no way to set different minimum clocks for
different profiles.
I think minimum clocks should be part of the profiles.
Regards,
Felix
On 2018-01-24 03:13 PM, Zhu, Rex wrote:
> Hi Eric,
>
> We have sysfs pp-dpm-sclk/mclk to set min dpm level
>
> Best Regards
> Rex
> ------------------------------------------------------------------------
> *From:* amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of
> Eric Huang <jinhuieric.huang at amd.com>
> *Sent:* Thursday, January 25, 2018 12:04:55 AM
> *To:* amd-gfx at lists.freedesktop.org
> *Subject:* Re: [PATCH 4/4] drm/amd/pp: Implement
> set_power_profile_mode on smu7
>
> We have min_sclk and min_mclk in previous power profile parameters for
> VI, which are similar with min_active_level for Vega10. How to implement
> these parameters?
>
> Regards,
> Eric
>
> On 2018-01-24 04:37 AM, Rex Zhu wrote:
> > User can set smu7 profile pamameters through sysfs
> >
> > echo "0/1/2/3/4">pp_power_profile_mode
> > to select 3D_FULL_SCREEN/POWER_SAVING/VIDEO/VR/COMPUTE
> > mode.
> > echo "5 * * * * * * * *">pp_power_profile_mode
> > to config custom mode.
> > "5 * * * * * * * *" mean "CUSTOM enable_sclk SCLK_UP_HYST
> > SCLK_DOWN_HYST SCLK_ACTIVE_LEVEL enable_mclk MCLK_UP_HYST
> > MCLK_DOWN_HYST MCLK_ACTIVE_LEVEL"
> >
> > Change-Id: Ic6d6f37363bc81ab17051285f6ace847edf725de
> > Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>
> > ---
> > drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 49
> +++++++++++++++++++++++-
> > 1 file changed, 48 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
> b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
> > index 9f6afd5..13db75c 100644
> > --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
> > +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
> > @@ -5036,7 +5036,54 @@ static int smu7_get_power_profile_mode(struct
> pp_hwmgr *hwmgr, char *buf)
> >
> > static int smu7_set_power_profile_mode(struct pp_hwmgr *hwmgr,
> long *input, uint32_t size)
> > {
> > - /* To Do */
> > + struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
> > + struct profile_mode_setting tmp;
> > +
> > + hwmgr->power_profile_mode = input[size];
> > +
> > + switch (hwmgr->power_profile_mode) {
> > + case PP_SMC_POWER_PROFILE_CUSTOM:
> > + if (size < 8)
> > + return -EINVAL;
> > +
> > + data->custom_profile_setting.bupdate_sclk = input[0];
> > + data->custom_profile_setting.sclk_up_hyst = input[1];
> > + data->custom_profile_setting.sclk_down_hyst = input[2];
> > + data->custom_profile_setting.sclk_activity = input[3];
> > + data->custom_profile_setting.bupdate_mclk = input[4];
> > + data->custom_profile_setting.mclk_up_hyst = input[5];
> > + data->custom_profile_setting.mclk_down_hyst = input[6];
> > + data->custom_profile_setting.mclk_activity = input[7];
> > + if (!smum_update_dpm_settings(hwmgr,
> &data->custom_profile_setting))
> > + memcpy(&data->current_profile_setting,
> &data->custom_profile_setting, sizeof(struct profile_mode_setting));
> > + break;
> > + case PP_SMC_POWER_PROFILE_FULLSCREEN3D:
> > + case PP_SMC_POWER_PROFILE_POWERSAVING:
> > + case PP_SMC_POWER_PROFILE_VIDEO:
> > + case PP_SMC_POWER_PROFILE_VR:
> > + case PP_SMC_POWER_PROFILE_COMPUTE:
> > + memcpy(&tmp,
> &smu7_profiling[hwmgr->power_profile_mode], sizeof(struct
> profile_mode_setting));
> > + if (!smum_update_dpm_settings(hwmgr, &tmp)) {
> > + if (tmp.bupdate_sclk) {
> > +
> data->current_profile_setting.bupdate_sclk = tmp.bupdate_sclk;
> > +
> data->current_profile_setting.sclk_up_hyst = tmp.sclk_up_hyst;
> > +
> data->current_profile_setting.sclk_down_hyst = tmp.sclk_down_hyst;
> > +
> data->current_profile_setting.sclk_activity = tmp.sclk_activity;
> > + }
> > + if (tmp.bupdate_mclk) {
> > +
> data->current_profile_setting.bupdate_mclk = tmp.bupdate_mclk;
> > +
> data->current_profile_setting.mclk_up_hyst = tmp.mclk_up_hyst;
> > +
> data->current_profile_setting.mclk_down_hyst = tmp.mclk_down_hyst;
> > +
> data->current_profile_setting.mclk_activity = tmp.mclk_activity;
> > + }
> > + }
> > + break;
> > + case PP_SMC_POWER_PROFILE_AUTO: /* TO DO auto wattman feature
> not implement */
> > + return 0;
> > + default:
> > + return -EINVAL;
> > + }
> > +
> > return 0;
> > }
> >
>
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