[AMD Official Use Only - Internal Distribution Only]


> -----Original Message-----
> From: Huang, Ray <[email protected]>
> Sent: Thursday, December 19, 2019 3:17 PM
> To: Dai, Yuxian (David) <[email protected]>
> Cc: Liang, Prike <[email protected]>; [email protected];
> Quan, Evan <[email protected]>
> Subject: Re: [PATCH] drm/amd/powerplay: suppress nonsupport profile
> mode overrun message
> 
> [AMD Official Use Only - Internal Distribution Only]
> 
> On Thu, Dec 19, 2019 at 03:04:12PM +0800, Dai, Yuxian (David) wrote:
> > For we don't support the mode, so shouldn't print the error message, or
> regard as a error.
> > For log message, the error is high level .maybe change from "error"  to
> "warning" , it will be much better.
> >
> >
> > -----Original Message-----
> > From: Liang, Prike <[email protected]>
> > Sent: Thursday, December 19, 2019 2:46 PM
> > To: [email protected]
> > Cc: Quan, Evan <[email protected]>; Huang, Ray
> <[email protected]>;
> > Dai, Yuxian (David) <[email protected]>; Liang, Prike
> > <[email protected]>
> > Subject: [PATCH] drm/amd/powerplay: suppress nonsupport profile mode
> > overrun message
> >
> > SMU12 not support WORKLOAD_DEFAULT_BIT and
> WORKLOAD_PPLIB_POWER_SAVING_BIT.
> >
> 
> Probably smu firmware doesn't expose the feature mask to driver. Can you
> confirmware with smu firmware guy whehter this feature is really disabled or
> not in SMU12. If that, in my view, issue the message
> SMU_MSG_SetWorkloadMask with an unsupported state, it doesn't make
> sense.
> 
> Just work around this with one time warnning is not a good solution.
[Prike]  Yes, from SMU FW guy @Cai, Land  SMU12 not support default and 
power saving mode now.  As the patch TODO item said we can consider switch to
compute/customer profile mode for power saving if needed. 
> 
> Thanks,
> Ray
> 
> > Signed-off-by: Prike Liang <[email protected]>
> > ---
> >  drivers/gpu/drm/amd/powerplay/renoir_ppt.c | 8 ++++++--
> >  1 file changed, 6 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
> > b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
> > index 784903a3..f9a1817 100644
> > --- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
> > +++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
> > @@ -550,14 +550,18 @@ static int renoir_set_power_profile_mode(struct
> smu_context *smu, long *input, u
> >     /* conv PP_SMC_POWER_PROFILE* to WORKLOAD_PPLIB_*_BIT */
> >     workload_type = smu_workload_get_type(smu, smu-
> >power_profile_mode);
> >     if (workload_type < 0) {
> > -           pr_err("Unsupported power profile mode %d on
> RENOIR\n",smu->power_profile_mode);
> > +           /*
> > +            * TODO: If some case need switch to powersave/default
> power mode
> > +            * then can consider enter
> WORKLOAD_COMPUTE/WORKLOAD_CUSTOM for power saving.
> > +            */
> > +           pr_err_once("Unsupported power profile mode %d on
> > +RENOIR\n",smu->power_profile_mode);
> >             return -EINVAL;
> >     }
> >
> >     ret = smu_send_smc_msg_with_param(smu,
> SMU_MSG_SetWorkloadMask,
> >                                 1 << workload_type);
> >     if (ret) {
> > -           pr_err("Fail to set workload type %d\n", workload_type);
> > +           pr_err_once("Fail to set workload type %d\n",
> workload_type);
> >             return ret;
> >     }
> >
> > --
> > 2.7.4
> >
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