[Intel-gfx] [PATCH 13/67] drm/i915/cnl: Add WaDisableReplayBufferBankArbitrationOptimization

[Vivi, Rodrigo]

On Thu, 2017-06-08 at 19:54 +0300, Mika Kuoppala wrote:
> Rodrigo Vivi <rodrigo.vivi at intel.com> writes:
> 
> > WA to disable replay buffer destination buffer arbitration optimization.
> >
> > Same Wa on previous platforms has a different name: WaToEnableHwFixForPushConstHWBug
> >
> > Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
> > ---
> >  drivers/gpu/drm/i915/intel_engine_cs.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
> > index da819a7..7a3c8ab 100644
> > --- a/drivers/gpu/drm/i915/intel_engine_cs.c
> > +++ b/drivers/gpu/drm/i915/intel_engine_cs.c
> > @@ -951,6 +951,10 @@ static int cnl_init_workarounds(struct intel_engine_cs *engine)
> >  	struct drm_i915_private *dev_priv = engine->i915;
> >  	int ret;
> >
> > +	/* WaDisableReplayBufferBankArbitrationOptimization:cnl */
> > +	WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2,
> > +			  GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION);
> > +
> 
> It is from B0 ->
> But I dont think it hurts to have this blanket approach.

we will never see an A0, so it is ok ;)

> 
> Reviewed-by: Mika Kuoppala <mika.kuoppala at intel.com>

Thanks

> 
> >  	/* WaInPlaceDecompressionHang:cnl */
> >  	WA_SET_BIT(GEN9_GAMT_ECO_REG_RW_IA,
> >  		   GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
> > -- 
> > 1.9.1
> >
> > _______________________________________________
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> > Intel-gfx at lists.freedesktop.org
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