[Public]
> -Original Message-
> From: Deucher, Alexander
> Sent: Monday, October 23, 2023 09:22
> To: Limonciello, Mario ; amd-
> g...@lists.freedesktop.org
> Cc: Limonciello, Mario ;
> paolo.gent...@canonical.com
> Subject: RE: [PATCH] drm/amd: Disable ASPM for VI w/ all Intel systems
>
> [Public]
>
> > -Original Message-
> > From: amd-gfx On Behalf Of
> Mario
> > Limonciello
> > Sent: Monday, October 23, 2023 9:45 AM
> > To: amd-gfx@lists.freedesktop.org
> > Cc: Limonciello, Mario ;
> > paolo.gent...@canonical.com
> > Subject: [PATCH] drm/amd: Disable ASPM for VI w/ all Intel systems
> >
> > Originally we were quirking ASPM disabled specifically for VI when used with
> > Alder Lake, but it appears to have problems with Rocket Lake as well.
> >
> > Like we've done in the case of dpm for newer platforms, disable ASPM for all
> > Intel systems.
> >
> > Cc: sta...@vger.kernel.org # 5.15+
> > Fixes: 0064b0ce85bb ("drm/amd/pm: enable ASPM by default")
> > Reported-and-tested-by: Paolo Gentili
> > Closes: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2036742
> > Signed-off-by: Mario Limonciello
>
> Reviewed-by: Alex Deucher
>
> As a follow on, we probably want to apply this to all of the program_aspm()
> functions for each asic family.
>
Yeah; I had that thought too but wanted to have a narrow patch for fixes and
stable first.
I will merge and send a follow up for that.
> Alex
>
> > ---
> > drivers/gpu/drm/amd/amdgpu/vi.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c
> > b/drivers/gpu/drm/amd/amdgpu/vi.c index 6a8494f98d3e..fe8ba9e9837b
> > 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/vi.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/vi.c
> > @@ -1124,7 +1124,7 @@ static void vi_program_aspm(struct
> > amdgpu_device *adev)
> > bool bL1SS = false;
> > bool bClkReqSupport = true;
> >
> > - if (!amdgpu_device_should_use_aspm(adev) ||
> > !amdgpu_device_aspm_support_quirk())
> > + if (!amdgpu_device_should_use_aspm(adev) ||
> > +!amdgpu_device_pcie_dynamic_switching_supported())
> > return;
> >
> > if (adev->flags & AMD_IS_APU ||
> > --
> > 2.34.1
>
