On Wed, Nov 28, 2018 at 03:58:19PM +0200, Mika Kuoppala wrote:
> Chris Wilson <[email protected]> writes:
> 
> > Mark A0 as the one and only pre-production variant of Kabylake and
> > remove its couple of workarounds, consigning them to the annals of
> > history.
> >
> > Signed-off-by: Chris Wilson <[email protected]>
> > Cc: Joonas Lahtinen <[email protected]>
> > Cc: Jani Nikula <[email protected]>
> > Cc: Rodrigo Vivi <[email protected]>
> > Cc: Mika Kuoppala <[email protected]>
> 
> My two patches are the same so in favour of compactness: :)
> 
> Reviewed-by: Mika Kuoppala <[email protected]>

Acked-by: Rodrigo Vivi <[email protected]>

> 
> > ---
> >  drivers/gpu/drm/i915/i915_drv.c          |  1 +
> >  drivers/gpu/drm/i915/intel_lrc.c         | 12 ------------
> >  drivers/gpu/drm/i915/intel_workarounds.c |  5 -----
> >  3 files changed, 1 insertion(+), 17 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_drv.c 
> > b/drivers/gpu/drm/i915/i915_drv.c
> > index b1d23c73c147..e39016713464 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.c
> > +++ b/drivers/gpu/drm/i915/i915_drv.c
> > @@ -868,6 +868,7 @@ static void intel_detect_preproduction_hw(struct 
> > drm_i915_private *dev_priv)
> >     pre |= IS_HSW_EARLY_SDV(dev_priv);
> >     pre |= IS_SKL_REVID(dev_priv, 0, SKL_REVID_F0);
> >     pre |= IS_BXT_REVID(dev_priv, 0, BXT_REVID_B_LAST);
> > +   pre |= IS_KBL_REVID(dev_priv, 0, KBL_REVID_A0);
> >  
> >     if (pre) {
> >             DRM_ERROR("This is a pre-production stepping. "
> > diff --git a/drivers/gpu/drm/i915/intel_lrc.c 
> > b/drivers/gpu/drm/i915/intel_lrc.c
> > index 08fd9b12e4d7..11f4e6148557 100644
> > --- a/drivers/gpu/drm/i915/intel_lrc.c
> > +++ b/drivers/gpu/drm/i915/intel_lrc.c
> > @@ -1401,18 +1401,6 @@ static u32 *gen9_init_indirectctx_bb(struct 
> > intel_engine_cs *engine, u32 *batch)
> >  
> >     batch = emit_lri(batch, lri, ARRAY_SIZE(lri));
> >  
> > -   /* WaClearSlmSpaceAtContextSwitch:kbl */
> > -   /* Actual scratch location is at 128 bytes offset */
> > -   if (IS_KBL_REVID(engine->i915, 0, KBL_REVID_A0)) {
> > -           batch = gen8_emit_pipe_control(batch,
> > -                                          PIPE_CONTROL_FLUSH_L3 |
> > -                                          PIPE_CONTROL_GLOBAL_GTT_IVB |
> > -                                          PIPE_CONTROL_CS_STALL |
> > -                                          PIPE_CONTROL_QW_WRITE,
> > -                                          i915_ggtt_offset(engine->scratch)
> > -                                          + 2 * CACHELINE_BYTES);
> > -   }
> > -
> >     /* WaMediaPoolStateCmdInWABB:bxt,glk */
> >     if (HAS_POOLED_EU(engine->i915)) {
> >             /*
> > diff --git a/drivers/gpu/drm/i915/intel_workarounds.c 
> > b/drivers/gpu/drm/i915/intel_workarounds.c
> > index ca1f78a42b17..39cd1f823ea9 100644
> > --- a/drivers/gpu/drm/i915/intel_workarounds.c
> > +++ b/drivers/gpu/drm/i915/intel_workarounds.c
> > @@ -384,11 +384,6 @@ static int kbl_ctx_workarounds_init(struct 
> > drm_i915_private *dev_priv)
> >     if (ret)
> >             return ret;
> >  
> > -   /* WaDisableFenceDestinationToSLM:kbl (pre-prod) */
> > -   if (IS_KBL_REVID(dev_priv, KBL_REVID_A0, KBL_REVID_A0))
> > -           WA_SET_BIT_MASKED(HDC_CHICKEN0,
> > -                             HDC_FENCE_DEST_SLM_DISABLE);
> > -
> >     /* WaToEnableHwFixForPushConstHWBug:kbl */
> >     if (IS_KBL_REVID(dev_priv, KBL_REVID_C0, REVID_FOREVER))
> >             WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2,
> > -- 
> > 2.20.0.rc1
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