On 23 January 2017 at 07:49, Ander Conselvan De Oliveira
<conselvan2@xxxxxxxxx> wrote:
> On Fri, 2017-01-20 at 08:04 -0800, Rodrigo Vivi wrote:
>> On Thu, Jan 12, 2017 at 3:47 AM, Ander Conselvan de Oliveira
>> <ander.conselvan.de.oliveira@xxxxxxxxx> wrote:
>> >
>> > Apply workarounds to Geminilake, and annoatate those that are applied
>> > uncondionally when they apply to GLK based on the workaround database.
>> >
>> > Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@inte
>> > l.com>
>> > ---
>> > drivers/gpu/drm/i915/i915_gem_gtt.c | 4 ++--
>> > drivers/gpu/drm/i915/intel_lrc.c | 6 +++---
>> > drivers/gpu/drm/i915/intel_mocs.c | 2 +-
>> > drivers/gpu/drm/i915/intel_pm.c | 23 ++++++++++++++++----
>> > drivers/gpu/drm/i915/intel_ringbuffer.c | 37 +++++++++++++++++++++++++-----
>> > ---
>> > 5 files changed, 53 insertions(+), 19 deletions(-)
>> >
>> > diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
>> > b/drivers/gpu/drm/i915/i915_gem_gtt.c
>> > index 0ed99adf..7024144 100644
>> > --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
>> > +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
>> > @@ -2167,14 +2167,14 @@ static void gtt_write_workarounds(struct
>> > drm_i915_private *dev_priv)
>> > * called on driver load and after a GPU reset, so you can place
>> > * workarounds here even if they get overwritten by GPU reset.
>> > */
>> > - /* WaIncreaseDefaultTLBEntries:chv,bdw,skl,bxt */
>> > + /* WaIncreaseDefaultTLBEntries:chv,bdw,skl,bxt,glk */
>> > if (IS_BROADWELL(dev_priv))
>> > I915_WRITE(GEN8_L3_LRA_1_GPGPU,
>> > GEN8_L3_LRA_1_GPGPU_DEFAULT_VALUE_BDW);
>> > else if (IS_CHERRYVIEW(dev_priv))
>> > I915_WRITE(GEN8_L3_LRA_1_GPGPU,
>> > GEN8_L3_LRA_1_GPGPU_DEFAULT_VALUE_CHV);
>> > else if (IS_SKYLAKE(dev_priv))
>> > I915_WRITE(GEN8_L3_LRA_1_GPGPU,
>> > GEN9_L3_LRA_1_GPGPU_DEFAULT_VALUE_SKL);
>> > - else if (IS_BROXTON(dev_priv))
>> > + else if (IS_GEN9_LP(dev_priv))
>> > I915_WRITE(GEN8_L3_LRA_1_GPGPU,
>> > GEN9_L3_LRA_1_GPGPU_DEFAULT_VALUE_BXT);
>> > }
>> >
>> > diff --git a/drivers/gpu/drm/i915/intel_lrc.c
>> > b/drivers/gpu/drm/i915/intel_lrc.c
>> > index db714dc..7bb3d0a 100644
>> > --- a/drivers/gpu/drm/i915/intel_lrc.c
>> > +++ b/drivers/gpu/drm/i915/intel_lrc.c
>> > @@ -1126,13 +1126,13 @@ static int gen9_init_indirectctx_bb(struct
>> > intel_engine_cs *engine,
>> > if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1))
>> > wa_ctx_emit(batch, index, MI_ARB_ON_OFF | MI_ARB_DISABLE);
>> >
>> > - /* WaFlushCoherentL3CacheLinesAtContextSwitch:skl,bxt */
>> > + /* WaFlushCoherentL3CacheLinesAtContextSwitch:skl,bxt,glk */
>> > ret = gen8_emit_flush_coherentl3_wa(engine, batch, index);
>> > if (ret < 0)
>> > return ret;
>> > index = ret;
>> >
>> > - /* WaDisableGatherAtSetShaderCommonSlice:skl,bxt,kbl */
>> > + /* WaDisableGatherAtSetShaderCommonSlice:skl,bxt,kbl,glk */
>> > wa_ctx_emit(batch, index, MI_LOAD_REGISTER_IMM(1));
>> > wa_ctx_emit_reg(batch, index, COMMON_SLICE_CHICKEN2);
>> > wa_ctx_emit(batch, index, _MASKED_BIT_DISABLE(
>> > @@ -1156,7 +1156,7 @@ static int gen9_init_indirectctx_bb(struct
>> > intel_engine_cs *engine,
>> > wa_ctx_emit(batch, index, 0);
>> > }
>> >
>> > - /* WaMediaPoolStateCmdInWABB:bxt */
>> > + /* WaMediaPoolStateCmdInWABB:bxt,glk */
>> > if (HAS_POOLED_EU(engine->i915)) {
>> > /*
>> > * EU pool configuration is setup along with golden context
>> > diff --git a/drivers/gpu/drm/i915/intel_mocs.c
>> > b/drivers/gpu/drm/i915/intel_mocs.c
>> > index c787fc4..9c67534 100644
>> > --- a/drivers/gpu/drm/i915/intel_mocs.c
>> > +++ b/drivers/gpu/drm/i915/intel_mocs.c
>> > @@ -191,7 +191,7 @@ static bool get_mocs_settings(struct drm_i915_private
>> > *dev_priv,
>> > "Platform that should have a MOCS table does
>> > not.\n");
>> > }
>> >
>> > - /* WaDisableSkipCaching:skl,bxt,kbl */
>> > + /* WaDisableSkipCaching:skl,bxt,kbl,glk */
>> > if (IS_GEN9(dev_priv)) {
>> > int i;
>> >
>> > diff --git a/drivers/gpu/drm/i915/intel_pm.c
>> > b/drivers/gpu/drm/i915/intel_pm.c
>> > index b257343..c8ebf1d 100644
>> > --- a/drivers/gpu/drm/i915/intel_pm.c
>> > +++ b/drivers/gpu/drm/i915/intel_pm.c
>> > @@ -65,12 +65,12 @@ static void gen9_init_clock_gating(struct
>> > drm_i915_private *dev_priv)
>> > I915_WRITE(GEN8_CONFIG0,
>> > I915_READ(GEN8_CONFIG0) | GEN9_DEFAULT_FIXES);
>> >
>> > - /* WaEnableChickenDCPR:skl,bxt,kbl */
>> > + /* WaEnableChickenDCPR:skl,bxt,kbl,glk */
>> > I915_WRITE(GEN8_CHICKEN_DCPR_1,
>> > I915_READ(GEN8_CHICKEN_DCPR_1) | MASK_WAKEMEM);
>> >
>> > /* WaFbcTurnOffFbcWatermark:skl,bxt,kbl */
>> > - /* WaFbcWakeMemOn:skl,bxt,kbl */
>> > + /* WaFbcWakeMemOn:skl,bxt,kbl,glk */
>> > I915_WRITE(DISP_ARB_CTL, I915_READ(DISP_ARB_CTL) |
>> > DISP_FBC_WM_DIS |
>> > DISP_FBC_MEMORY_WAKE);
>> > @@ -107,6 +107,19 @@ static void bxt_init_clock_gating(struct
>> > drm_i915_private *dev_priv)
>> > PWM1_GATING_DIS | PWM2_GATING_DIS);
>> > }
>> >
>> > +static void glk_init_clock_gating(struct drm_i915_private *dev_priv)
>> > +{
>> > + gen9_init_clock_gating(dev_priv);
>> > +
>> > + /*
>> > + * WaDisablePWMClockGating:glk
>> > + * Backlight PWM may stop in the asserted state, causing backlight
>> > + * to stay fully on.
>> > + */
>> > + I915_WRITE(GEN9_CLKGATE_DIS_0, I915_READ(GEN9_CLKGATE_DIS_0) |
>> > + PWM1_GATING_DIS | PWM2_GATING_DIS);
>> > +}
>> > +
>> > static void i915_pineview_get_mem_freq(struct drm_i915_private *dev_priv)
>> > {
>> > u32 tmp;
>> > @@ -2176,7 +2189,7 @@ static void intel_read_wm_latency(struct
>> > drm_i915_private *dev_priv,
>> > }
>> >
>> > /*
>> > - * WaWmMemoryReadLatency:skl
>> > + * WaWmMemoryReadLatency:skl,glk
>> > *
>> > * punit doesn't take into account the read latency so we
>> > need
>> > * to add 2us to the various latency levels we retrieve from
>> > the
>> > @@ -7659,8 +7672,10 @@ void intel_init_clock_gating_hooks(struct
>> > drm_i915_private *dev_priv)
>> > dev_priv->display.init_clock_gating =
>> > skylake_init_clock_gating;
>> > else if (IS_KABYLAKE(dev_priv))
>> > dev_priv->display.init_clock_gating =
>> > kabylake_init_clock_gating;
>> > - else if (IS_GEN9_LP(dev_priv))
>> > + else if (IS_BROXTON(dev_priv))
>> > dev_priv->display.init_clock_gating = bxt_init_clock_gating;
>> > + else if (IS_GEMINILAKE(dev_priv))
>> > + dev_priv->display.init_clock_gating = glk_init_clock_gating;
>> > else if (IS_BROADWELL(dev_priv))
>> > dev_priv->display.init_clock_gating =
>> > broadwell_init_clock_gating;
>> > else if (IS_CHERRYVIEW(dev_priv))
>> > diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c
>> > b/drivers/gpu/drm/i915/intel_ringbuffer.c
>> > index ab83fc2..e17f339 100644
>> > --- a/drivers/gpu/drm/i915/intel_ringbuffer.c
>> > +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
>> > @@ -812,10 +812,10 @@ static int gen9_init_workarounds(struct
>> > intel_engine_cs *engine)
>> > struct drm_i915_private *dev_priv = engine->i915;
>> > int ret;
>> >
>> > - /* WaConextSwitchWithConcurrentTLBInvalidate:skl,bxt,kbl */
>> > + /* WaConextSwitchWithConcurrentTLBInvalidate:skl,bxt,kbl,glk */
>> > I915_WRITE(GEN9_CSFE_CHICKEN1_RCS,
>> > _MASKED_BIT_ENABLE(GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE));
>> >
>> > - /* WaEnableLbsSlaRetryTimerDecrement:skl,bxt,kbl */
>> > + /* WaEnableLbsSlaRetryTimerDecrement:skl,bxt,kbl,glk */
>> > I915_WRITE(BDW_SCRATCH1, I915_READ(BDW_SCRATCH1) |
>> > GEN9_LBS_SLA_RETRY_TIMER_DECREMENT_ENABLE);
>> >
>> > @@ -823,8 +823,8 @@ static int gen9_init_workarounds(struct intel_engine_cs
>> > *engine)
>> > I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
>> > ECOCHK_DIS_TLB);
>> >
>> > - /* WaClearFlowControlGpgpuContextSave:skl,bxt,kbl */
>> > - /* WaDisablePartialInstShootdown:skl,bxt,kbl */
>> > + /* WaClearFlowControlGpgpuContextSave:skl,bxt,kbl,glk */
>> > + /* WaDisablePartialInstShootdown:skl,bxt,kbl,glk */
>> > WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN,
>> > FLOW_CONTROL_ENABLE |
>> > PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE);
>> > @@ -853,12 +853,12 @@ static int gen9_init_workarounds(struct
>> > intel_engine_cs *engine)
>> > WA_SET_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN7,
>> > GEN9_ENABLE_GPGPU_PREEMPTION);
>> >
>> > - /* Wa4x4STCOptimizationDisable:skl,bxt,kbl */
>> > + /* Wa4x4STCOptimizationDisable:skl,bxt,kbl,glk */
>> > /* WaDisablePartialResolveInVc:skl,bxt,kbl */
>> > WA_SET_BIT_MASKED(CACHE_MODE_1, (GEN8_4x4_STC_OPTIMIZATION_DISABLE |
>> > GEN9_PARTIAL_RESOLVE_IN_VC_DISABLE)
>> > );
>> >
>> > - /* WaCcsTlbPrefetchDisable:skl,bxt,kbl */
>> > + /* WaCcsTlbPrefetchDisable:skl,bxt,kbl,glk */
>> > WA_CLR_BIT_MASKED(GEN9_HALF_SLICE_CHICKEN5,
>> > GEN9_CCS_TLB_PREFETCH_ENABLE);
>> >
>> > @@ -900,14 +900,14 @@ static int gen9_init_workarounds(struct
>> > intel_engine_cs *engine)
>> > WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN3,
>> > GEN8_SAMPLER_POWER_BYPASS_DIS);
>> >
>> > - /* WaDisableSTUnitPowerOptimization:skl,bxt,kbl */
>> > + /* WaDisableSTUnitPowerOptimization:skl,bxt,kbl,glk */
>> > WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN2, GEN8_ST_PO_DISABLE);
>> >
>> > /* WaOCLCoherentLineFlush:skl,bxt,kbl */
>> > I915_WRITE(GEN8_L3SQCREG4, (I915_READ(GEN8_L3SQCREG4) |
>> > GEN8_LQSC_FLUSH_COHERENT_LINES));
>> >
>> > - /* WaVFEStateAfterPipeControlwithMediaStateClear:skl,bxt */
>> > + /* WaVFEStateAfterPipeControlwithMediaStateClear:skl,bxt,glk */
>> > ret = wa_ring_whitelist_reg(engine, GEN9_CTX_PREEMPT_REG);
>> > if (ret)
>> > return ret;
>> > @@ -917,7 +917,7 @@ static int gen9_init_workarounds(struct intel_engine_cs
>> > *engine)
>> > if (ret)
>> > return ret;
>> >
>> > - /* WaAllowUMDToModifyHDCChicken1:skl,bxt,kbl */
>> > + /* WaAllowUMDToModifyHDCChicken1:skl,bxt,kbl,glk */
>> > ret = wa_ring_whitelist_reg(engine, GEN8_HDC_CHICKEN1);
>> > if (ret)
>> > return ret;
>> > @@ -1128,6 +1128,22 @@ static int kbl_init_workarounds(struct
>> > intel_engine_cs *engine)
>> > return 0;
>> > }
>> >
>> > +static int glk_init_workarounds(struct intel_engine_cs *engine)
>> > +{
>> > + struct drm_i915_private *dev_priv = engine->i915;
>> > + int ret;
>> > +
>> > + ret = gen9_init_workarounds(engine);
>> > + if (ret)
>> > + return ret;
>> > +
>> > + /* WaToEnableHwFixForPushConstHWBug:glk */
>> My first thought on this was wondering if we should have that for KBL and
>> BXT...
>> but then I noticed it is only up to C0 there while here is forever....
>>
>> >
>> > + WA_SET_BIT_MASKED(COMMON_SLICE_CHICKEN2,
>> > + GEN8_SBE_DISABLE_REPLAY_BUF_OPTIMIZATION);
>> But also how did you come up with these bit?
>> Resolution I see there tells to reset some counter with invalidate
>> or something like inserting 2 zero length push PS at some update...
>> not sure, but noting that pointed me to this bit here..
>
> If I understood correctly, WaInsertDummyPushConstPs is the dummy push
> workaround. That is fixed in GKL, BXT C0 and KBL C0, but requires this bit to
> enable the fix. Enabling the fix is called WaToEnableHwFixForPushConstHWBug.
>
> Is this correct Matthew?
Yes, that's how I understood it.
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