Re: [PATCH 3/3] drm/i915: Start using comparative INTEL_PCH_TYPE

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On Tue, Mar 05, 2019 at 10:38:46AM -0800, Rodrigo Vivi wrote:
On Tue, Mar 05, 2019 at 09:42:22AM -0800, Lucas De Marchi wrote:
On Tue, Mar 05, 2019 at 07:16:47PM +0200, Jani Nikula wrote:
> On Tue, 05 Mar 2019, Lucas De Marchi <lucas.demarchi@xxxxxxxxx> wrote:
> > On Tue, Mar 05, 2019 at 04:10:04PM +0200, Jani Nikula wrote:
> > > On Mon, 04 Mar 2019, Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> wrote:
> > > > diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> > > > index e1a051c0fbfe..acd2336bb214 100644
> > > > --- a/drivers/gpu/drm/i915/intel_dp.c
> > > > +++ b/drivers/gpu/drm/i915/intel_dp.c
> > > > @@ -949,8 +949,8 @@ static void intel_pps_get_registers(struct intel_dp *intel_dp,
> > > >  	regs->pp_stat = PP_STATUS(pps_idx);
> > > >  	regs->pp_on = PP_ON_DELAYS(pps_idx);
> > > >  	regs->pp_off = PP_OFF_DELAYS(pps_idx);
> > > > -	if (!IS_GEN9_LP(dev_priv) && !HAS_PCH_CNP(dev_priv) &&
> > > > -	    !HAS_PCH_ICP(dev_priv))
> > > > +	if (INTEL_PCH_TYPE(dev_priv) > PCH_NONE &&
> > > > +	    INTEL_PCH_TYPE(dev_priv) < PCH_CNP)
> > >
> > > This is not right, starts to require PCH.
> >
> > But in those cases INTEL_PCH_TYPE() will return either NONE or NOP.
>
> Exactly. Non-PCH platforms before CNP should match, but won't.

yeah, right. I misread the !IS_GEN9_LP().

ouch... indeed.
probably this explains failure on ci for bsw and byt

options:

1. if (!IS_GEN9_LP(dev_priv) && !(INTEL_PCH_TYPE(dev_priv) >= 10))

10? I think you meant PCH_CNP


2. if (INTEL_GEN(dev_priv) <= 8 || IS_GEN9_BC(dev_priv))

3. other ideas?

"all PCHs before CNP, excluding GEN9_LP":

	if (INTEL_PCH_TYPE(dev_priv) < PCH_CNP && !IS_GEN9_LP(dev_priv))


Lucas De Marchi



Lucas De Marchi

>
> BR,
> Jani.
>
>
> --
> Jani Nikula, Intel Open Source Graphics Center
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