[PATCH] drm/amdgpu: Enable SMU 13.0.0 optimizations when ROCm is active

[Alex Deucher]

On Wed, Oct 4, 2023 at 10:51 AM Alex Deucher <alexdeucher at gmail.com> wrote:
>
> On Wed, Oct 4, 2023 at 10:46 AM Wang, Yang(Kevin)
> <KevinYang.Wang at amd.com> wrote:
> >
> > Hi Alex,
> >
> > why need to switch profile twice for smu 13.0.0 ? in idle state : set compute profile then set power save profile?
> > Afaik, Pmfw always uses the last set result to represent the current profile.
> > But it shouldn't affect the results. Anyway.
>
> We want to be setting both workload bits (powersave and compute).  I
> guess this won't work as is?  I thought the code or'ed both bits.

Confirming this won't work as expected.  Will rework and resend.

Alex

>
> Alex
>
>
> >
> > Reviewed-by: Yang Wang <kevinyang.wang at amd.com>
> >
> > Best Regards,
> > Kevin
> >
> > -----Original Message-----
> > From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Alex Deucher
> > Sent: Wednesday, October 4, 2023 10:04 PM
> > To: Deucher, Alexander <Alexander.Deucher at amd.com>
> > Cc: amd-gfx at lists.freedesktop.org
> > Subject: Re: [PATCH] drm/amdgpu: Enable SMU 13.0.0 optimizations when ROCm is active
> >
> > Ping?
> >
> > On Tue, Oct 3, 2023 at 6:47 PM Alex Deucher <alexander.deucher at amd.com> wrote:
> > >
> > > When ROCm is active enable additional SMU 13.0.0 optimizations.
> > > This reuses the unused powersave profile on PMFW.
> > >
> > > Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> > > ---
> > >  drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 8 ++++++++
> > >  1 file changed, 8 insertions(+)
> > >
> > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> > > index 38b5457baded..b6c0c42de725 100644
> > > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> > > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
> > > @@ -714,6 +714,14 @@ void amdgpu_amdkfd_set_compute_idle(struct amdgpu_device *adev, bool idle)
> > >         amdgpu_dpm_switch_power_profile(adev,
> > >                                         PP_SMC_POWER_PROFILE_COMPUTE,
> > >                                         !idle);
> > > +       /* Add optimizations for SMU13.0.0.  Reuse the power saving profile */
> > > +       if ((amdgpu_ip_version(adev, MP1_HWIP, 0) == IP_VERSION(13, 0, 0)) &&
> > > +           ((adev->pm.fw_version == 0x004e6601) ||
> > > +            (adev->pm.fw_version >= 0x004e7300))) {
> > > +               amdgpu_dpm_switch_power_profile(adev,
> > > +                                               PP_SMC_POWER_PROFILE_POWERSAVING,
> > > +                                               !idle);
> > > +       }
> > >  }
> > >
> > >  bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid)
> > > --
> > > 2.41.0
> > >