[PATCH] drm/amdgpu: disable BACO support for 699F:C7 polaris12 SKU temporarily

[Quan, Evan]

[AMD Official Use Only]



> -----Original Message-----
> From: Alex Deucher <alexdeucher at gmail.com>
> Sent: Friday, August 13, 2021 9:56 PM
> To: Quan, Evan <Evan.Quan at amd.com>
> Cc: amd-gfx list <amd-gfx at lists.freedesktop.org>; Deucher, Alexander
> <Alexander.Deucher at amd.com>; Chen, Guchun <Guchun.Chen at amd.com>
> Subject: Re: [PATCH] drm/amdgpu: disable BACO support for 699F:C7
> polaris12 SKU temporarily
> 
> On Fri, Aug 13, 2021 at 9:54 AM Alex Deucher <alexdeucher at gmail.com>
> wrote:
> >
> > Acked-by: Alex Deucher <alexander.deucher at amd.com>
> >
> > On Fri, Aug 13, 2021 at 4:09 AM Evan Quan <evan.quan at amd.com> wrote:
> > >
> > > We have a S3 issue on that SKU with BACO enabled. Will bring back
> > > this when that root caused.
> > >
> 
> Actually it might be worth checking the SSIDs as well assuming this is platform
> specific.
[Quan, Evan] Can you share more how to perform that check? Where to get the SSID?

BR
Evan
> 
> Alex
> 
> > > Change-Id: I56d4830e6275e20a415808896eecbadfe944070b
> > > Signed-off-by: Evan Quan <evan.quan at amd.com>
> > > ---
> > >  drivers/gpu/drm/amd/amdgpu/vi.c | 7 ++++++-
> > >  1 file changed, 6 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c
> > > b/drivers/gpu/drm/amd/amdgpu/vi.c index fe9a7cc8d9eb..7210f80815b8
> > > 100644
> > > --- a/drivers/gpu/drm/amd/amdgpu/vi.c
> > > +++ b/drivers/gpu/drm/amd/amdgpu/vi.c
> > > @@ -904,7 +904,12 @@ static bool vi_asic_supports_baco(struct
> amdgpu_device *adev)
> > >         case CHIP_POLARIS11:
> > >         case CHIP_POLARIS12:
> > >         case CHIP_TOPAZ:
> > > -               return amdgpu_dpm_is_baco_supported(adev);
> > > +               /* Disable BACO support for the specific polaris12 SKU
> temporarily */
> > > +               if ((adev->pdev->device == 0x699F) &&
> > > +                   (adev->pdev->revision == 0xC7))
> > > +                       return false;
> > > +               else
> > > +                       return amdgpu_dpm_is_baco_supported(adev);
> > >         default:
> > >                 return false;
> > >         }
> > > --
> > > 2.29.0
> > >