[PATCH 1/6] gt wa helpers
Tvrtko Ursulin
tvrtko.ursulin at linux.intel.com
Wed Nov 28 09:10:29 UTC 2018
From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
drivers/gpu/drm/i915/intel_workarounds.c | 290 +++++++++++++----------
1 file changed, 169 insertions(+), 121 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
index ca1f78a42b17..f99c9ae48a84 100644
--- a/drivers/gpu/drm/i915/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/intel_workarounds.c
@@ -580,6 +580,37 @@ int intel_ctx_workarounds_emit(struct i915_request *rq)
return 0;
}
+static void
+wa_write(struct drm_i915_private *dev_priv, i915_reg_t reg, u32 val)
+{
+ I915_WRITE(reg, val);
+}
+
+static void
+wa_masked_en(struct drm_i915_private *dev_priv, i915_reg_t reg, u32 val)
+{
+ I915_WRITE(reg, _MASKED_BIT_ENABLE(val));
+}
+
+static void
+wa_write_or(struct drm_i915_private *dev_priv, i915_reg_t reg, u32 val)
+{
+ u32 cur = I915_READ(reg);
+
+ I915_WRITE(reg, cur | val);
+}
+
+static void
+wa_write_masked_or(struct drm_i915_private *dev_priv, i915_reg_t reg, u32 mask,
+ u32 val)
+{
+ u32 cur = I915_READ(reg);
+
+ cur &= mask;
+
+ I915_WRITE(reg, cur | val);
+}
+
static void bdw_gt_workarounds_apply(struct drm_i915_private *dev_priv)
{
}
@@ -591,17 +622,21 @@ static void chv_gt_workarounds_apply(struct drm_i915_private *dev_priv)
static void gen9_gt_workarounds_apply(struct drm_i915_private *dev_priv)
{
/* WaContextSwitchWithConcurrentTLBInvalidate:skl,bxt,kbl,glk,cfl */
- I915_WRITE(GEN9_CSFE_CHICKEN1_RCS,
- _MASKED_BIT_ENABLE(GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE));
+ wa_masked_en(dev_priv,
+ GEN9_CSFE_CHICKEN1_RCS,
+ GEN9_PREEMPT_GPGPU_SYNC_SWITCH_DISABLE);
+
/* WaEnableLbsSlaRetryTimerDecrement:skl,bxt,kbl,glk,cfl */
- I915_WRITE(BDW_SCRATCH1, I915_READ(BDW_SCRATCH1) |
- GEN9_LBS_SLA_RETRY_TIMER_DECREMENT_ENABLE);
+ wa_write_or(dev_priv,
+ BDW_SCRATCH1,
+ GEN9_LBS_SLA_RETRY_TIMER_DECREMENT_ENABLE);
/* WaDisableKillLogic:bxt,skl,kbl */
if (!IS_COFFEELAKE(dev_priv))
- I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
- ECOCHK_DIS_TLB);
+ wa_write_or(dev_priv,
+ GAM_ECOCHK,
+ ECOCHK_DIS_TLB);
if (HAS_LLC(dev_priv)) {
/* WaCompressedResourceSamplerPbeMediaNewHashMode:skl,kbl
@@ -609,32 +644,33 @@ static void gen9_gt_workarounds_apply(struct drm_i915_private *dev_priv)
* Must match Display Engine. See
* WaCompressedResourceDisplayNewHashMode.
*/
- I915_WRITE(MMCD_MISC_CTRL,
- I915_READ(MMCD_MISC_CTRL) |
- MMCD_PCLA |
- MMCD_HOTSPOT_EN);
+ wa_write_or(dev_priv,
+ MMCD_MISC_CTRL,
+ MMCD_PCLA | MMCD_HOTSPOT_EN);
}
/* WaDisableHDCInvalidation:skl,bxt,kbl,cfl */
- I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) |
- BDW_DISABLE_HDC_INVALIDATION);
+ wa_write_or(dev_priv,
+ GAM_ECOCHK,
+ BDW_DISABLE_HDC_INVALIDATION);
/* WaProgramL3SqcReg1DefaultForPerf:bxt,glk */
- if (IS_GEN9_LP(dev_priv)) {
- u32 val = I915_READ(GEN8_L3SQCREG1);
-
- val &= ~L3_PRIO_CREDITS_MASK;
- val |= L3_GENERAL_PRIO_CREDITS(62) | L3_HIGH_PRIO_CREDITS(2);
- I915_WRITE(GEN8_L3SQCREG1, val);
- }
+ if (IS_GEN9_LP(dev_priv))
+ wa_write_masked_or(dev_priv,
+ GEN8_L3SQCREG1,
+ ~L3_PRIO_CREDITS_MASK,
+ L3_GENERAL_PRIO_CREDITS(62) |
+ L3_HIGH_PRIO_CREDITS(2));
/* WaOCLCoherentLineFlush:skl,bxt,kbl,cfl */
- I915_WRITE(GEN8_L3SQCREG4,
- I915_READ(GEN8_L3SQCREG4) | GEN8_LQSC_FLUSH_COHERENT_LINES);
+ wa_write_or(dev_priv,
+ GEN8_L3SQCREG4,
+ GEN8_LQSC_FLUSH_COHERENT_LINES);
/* WaEnablePreemptionGranularityControlByUMD:skl,bxt,kbl,cfl,[cnl] */
- I915_WRITE(GEN7_FF_SLICE_CS_CHICKEN1,
- _MASKED_BIT_ENABLE(GEN9_FFSC_PERCTX_PREEMPT_CTRL));
+ wa_masked_en(dev_priv,
+ GEN7_FF_SLICE_CS_CHICKEN1,
+ GEN9_FFSC_PERCTX_PREEMPT_CTRL);
}
static void skl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
@@ -642,18 +678,20 @@ static void skl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
gen9_gt_workarounds_apply(dev_priv);
/* WaEnableGapsTsvCreditFix:skl */
- I915_WRITE(GEN8_GARBCNTL,
- I915_READ(GEN8_GARBCNTL) | GEN9_GAPS_TSV_CREDIT_DISABLE);
+ wa_write_or(dev_priv,
+ GEN8_GARBCNTL,
+ GEN9_GAPS_TSV_CREDIT_DISABLE);
/* WaDisableGafsUnitClkGating:skl */
- I915_WRITE(GEN7_UCGCTL4,
- I915_READ(GEN7_UCGCTL4) | GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
+ wa_write_or(dev_priv,
+ GEN7_UCGCTL4,
+ GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
/* WaInPlaceDecompressionHang:skl */
if (IS_SKL_REVID(dev_priv, SKL_REVID_H0, REVID_FOREVER))
- I915_WRITE(GEN9_GAMT_ECO_REG_RW_IA,
- I915_READ(GEN9_GAMT_ECO_REG_RW_IA) |
- GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+ wa_write_or(dev_priv,
+ GEN9_GAMT_ECO_REG_RW_IA,
+ GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
}
static void bxt_gt_workarounds_apply(struct drm_i915_private *dev_priv)
@@ -661,13 +699,14 @@ static void bxt_gt_workarounds_apply(struct drm_i915_private *dev_priv)
gen9_gt_workarounds_apply(dev_priv);
/* WaDisablePooledEuLoadBalancingFix:bxt */
- I915_WRITE(FF_SLICE_CS_CHICKEN2,
- _MASKED_BIT_ENABLE(GEN9_POOLED_EU_LOAD_BALANCING_FIX_DISABLE));
+ wa_masked_en(dev_priv,
+ FF_SLICE_CS_CHICKEN2,
+ GEN9_POOLED_EU_LOAD_BALANCING_FIX_DISABLE);
/* WaInPlaceDecompressionHang:bxt */
- I915_WRITE(GEN9_GAMT_ECO_REG_RW_IA,
- I915_READ(GEN9_GAMT_ECO_REG_RW_IA) |
- GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+ wa_write_or(dev_priv,
+ GEN9_GAMT_ECO_REG_RW_IA,
+ GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
}
static void kbl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
@@ -675,23 +714,25 @@ static void kbl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
gen9_gt_workarounds_apply(dev_priv);
/* WaEnableGapsTsvCreditFix:kbl */
- I915_WRITE(GEN8_GARBCNTL,
- I915_READ(GEN8_GARBCNTL) | GEN9_GAPS_TSV_CREDIT_DISABLE);
+ wa_write_or(dev_priv,
+ GEN8_GARBCNTL,
+ GEN9_GAPS_TSV_CREDIT_DISABLE);
/* WaDisableDynamicCreditSharing:kbl */
if (IS_KBL_REVID(dev_priv, 0, KBL_REVID_B0))
- I915_WRITE(GAMT_CHKN_BIT_REG,
- I915_READ(GAMT_CHKN_BIT_REG) |
- GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING);
+ wa_write_or(dev_priv,
+ GAMT_CHKN_BIT_REG,
+ GAMT_CHKN_DISABLE_DYNAMIC_CREDIT_SHARING);
/* WaDisableGafsUnitClkGating:kbl */
- I915_WRITE(GEN7_UCGCTL4,
- I915_READ(GEN7_UCGCTL4) | GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
+ wa_write_or(dev_priv,
+ GEN7_UCGCTL4,
+ GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
/* WaInPlaceDecompressionHang:kbl */
- I915_WRITE(GEN9_GAMT_ECO_REG_RW_IA,
- I915_READ(GEN9_GAMT_ECO_REG_RW_IA) |
- GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+ wa_write_or(dev_priv,
+ GEN9_GAMT_ECO_REG_RW_IA,
+ GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
/* WaKBLVECSSemaphoreWaitPoll:kbl */
if (IS_KBL_REVID(dev_priv, KBL_REVID_A0, KBL_REVID_E0)) {
@@ -702,7 +743,9 @@ static void kbl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
if (engine->id == RCS)
continue;
- I915_WRITE(RING_SEMA_WAIT_POLL(engine->mmio_base), 1);
+ wa_write(dev_priv,
+ RING_SEMA_WAIT_POLL(engine->mmio_base),
+ 1);
}
}
}
@@ -717,23 +760,24 @@ static void cfl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
gen9_gt_workarounds_apply(dev_priv);
/* WaEnableGapsTsvCreditFix:cfl */
- I915_WRITE(GEN8_GARBCNTL,
- I915_READ(GEN8_GARBCNTL) | GEN9_GAPS_TSV_CREDIT_DISABLE);
+ wa_write_or(dev_priv,
+ GEN8_GARBCNTL,
+ GEN9_GAPS_TSV_CREDIT_DISABLE);
/* WaDisableGafsUnitClkGating:cfl */
- I915_WRITE(GEN7_UCGCTL4,
- I915_READ(GEN7_UCGCTL4) | GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
+ wa_write_or(dev_priv,
+ GEN7_UCGCTL4,
+ GEN8_EU_GAUNIT_CLOCK_GATE_DISABLE);
/* WaInPlaceDecompressionHang:cfl */
- I915_WRITE(GEN9_GAMT_ECO_REG_RW_IA,
- I915_READ(GEN9_GAMT_ECO_REG_RW_IA) |
- GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+ wa_write_or(dev_priv,
+ GEN9_GAMT_ECO_REG_RW_IA,
+ GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
}
static void wa_init_mcr(struct drm_i915_private *dev_priv)
{
const struct sseu_dev_info *sseu = &(INTEL_INFO(dev_priv)->sseu);
- u32 mcr;
u32 mcr_slice_subslice_mask;
/*
@@ -770,8 +814,6 @@ static void wa_init_mcr(struct drm_i915_private *dev_priv)
WARN_ON((enabled_mask & disabled_mask) != enabled_mask);
}
- mcr = I915_READ(GEN8_MCR_SELECTOR);
-
if (INTEL_GEN(dev_priv) >= 11)
mcr_slice_subslice_mask = GEN11_MCR_SLICE_MASK |
GEN11_MCR_SUBSLICE_MASK;
@@ -789,9 +831,10 @@ static void wa_init_mcr(struct drm_i915_private *dev_priv)
* occasions, such as INSTDONE, where this value is dependent
* on s/ss combo, the read should be done with read_subslice_reg.
*/
- mcr &= ~mcr_slice_subslice_mask;
- mcr |= intel_calculate_mcr_s_ss_select(dev_priv);
- I915_WRITE(GEN8_MCR_SELECTOR, mcr);
+ wa_write_masked_or(dev_priv,
+ GEN8_MCR_SELECTOR,
+ ~mcr_slice_subslice_mask,
+ intel_calculate_mcr_s_ss_select(dev_priv));
}
static void cnl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
@@ -800,18 +843,19 @@ static void cnl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
/* WaDisableI2mCycleOnWRPort:cnl (pre-prod) */
if (IS_CNL_REVID(dev_priv, CNL_REVID_B0, CNL_REVID_B0))
- I915_WRITE(GAMT_CHKN_BIT_REG,
- I915_READ(GAMT_CHKN_BIT_REG) |
- GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT);
+ wa_write_or(dev_priv,
+ GAMT_CHKN_BIT_REG,
+ GAMT_CHKN_DISABLE_I2M_CYCLE_ON_WR_PORT);
/* WaInPlaceDecompressionHang:cnl */
- I915_WRITE(GEN9_GAMT_ECO_REG_RW_IA,
- I915_READ(GEN9_GAMT_ECO_REG_RW_IA) |
- GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+ wa_write_or(dev_priv,
+ GEN9_GAMT_ECO_REG_RW_IA,
+ GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
/* WaEnablePreemptionGranularityControlByUMD:cnl */
- I915_WRITE(GEN7_FF_SLICE_CS_CHICKEN1,
- _MASKED_BIT_ENABLE(GEN9_FFSC_PERCTX_PREEMPT_CTRL));
+ wa_masked_en(dev_priv,
+ GEN7_FF_SLICE_CS_CHICKEN1,
+ GEN9_FFSC_PERCTX_PREEMPT_CTRL);
}
static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
@@ -819,105 +863,109 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
wa_init_mcr(dev_priv);
/* This is not an Wa. Enable for better image quality */
- I915_WRITE(_3D_CHICKEN3,
- _MASKED_BIT_ENABLE(_3D_CHICKEN3_AA_LINE_QUALITY_FIX_ENABLE));
+ wa_masked_en(dev_priv,
+ _3D_CHICKEN3,
+ _3D_CHICKEN3_AA_LINE_QUALITY_FIX_ENABLE);
/* WaInPlaceDecompressionHang:icl */
- I915_WRITE(GEN9_GAMT_ECO_REG_RW_IA,
- I915_READ(GEN9_GAMT_ECO_REG_RW_IA) |
- GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
+ wa_write_or(dev_priv,
+ GEN9_GAMT_ECO_REG_RW_IA,
+ GAMT_ECO_ENABLE_IN_PLACE_DECOMPRESS);
/* WaPipelineFlushCoherentLines:icl */
- I915_WRITE(GEN8_L3SQCREG4,
- I915_READ(GEN8_L3SQCREG4) |
- GEN8_LQSC_FLUSH_COHERENT_LINES);
+ wa_write_or(dev_priv,
+ GEN8_L3SQCREG4,
+ GEN8_LQSC_FLUSH_COHERENT_LINES);
/* Wa_1405543622:icl
* Formerly known as WaGAPZPriorityScheme
*/
- I915_WRITE(GEN8_GARBCNTL,
- I915_READ(GEN8_GARBCNTL) |
- GEN11_ARBITRATION_PRIO_ORDER_MASK);
+ wa_write_or(dev_priv,
+ GEN8_GARBCNTL,
+ GEN11_ARBITRATION_PRIO_ORDER_MASK);
/* Wa_1604223664:icl
* Formerly known as WaL3BankAddressHashing
*/
- I915_WRITE(GEN8_GARBCNTL,
- (I915_READ(GEN8_GARBCNTL) & ~GEN11_HASH_CTRL_EXCL_MASK) |
- GEN11_HASH_CTRL_EXCL_BIT0);
- I915_WRITE(GEN11_GLBLINVL,
- (I915_READ(GEN11_GLBLINVL) & ~GEN11_BANK_HASH_ADDR_EXCL_MASK) |
- GEN11_BANK_HASH_ADDR_EXCL_BIT0);
+ wa_write_masked_or(dev_priv,
+ GEN8_GARBCNTL,
+ ~GEN11_HASH_CTRL_EXCL_MASK,
+ GEN11_HASH_CTRL_EXCL_BIT0);
+ wa_write_masked_or(dev_priv,
+ GEN11_GLBLINVL,
+ ~GEN11_BANK_HASH_ADDR_EXCL_MASK,
+ GEN11_BANK_HASH_ADDR_EXCL_BIT0);
/* WaModifyGamTlbPartitioning:icl */
- I915_WRITE(GEN11_GACB_PERF_CTRL,
- (I915_READ(GEN11_GACB_PERF_CTRL) & ~GEN11_HASH_CTRL_MASK) |
- GEN11_HASH_CTRL_BIT0 | GEN11_HASH_CTRL_BIT4);
+ wa_write_masked_or(dev_priv,
+ GEN11_GACB_PERF_CTRL,
+ ~GEN11_HASH_CTRL_MASK,
+ GEN11_HASH_CTRL_BIT0 | GEN11_HASH_CTRL_BIT4);
/* Wa_1405733216:icl
* Formerly known as WaDisableCleanEvicts
*/
- I915_WRITE(GEN8_L3SQCREG4,
- I915_READ(GEN8_L3SQCREG4) |
- GEN11_LQSC_CLEAN_EVICT_DISABLE);
+ wa_write_or(dev_priv,
+ GEN8_L3SQCREG4,
+ GEN11_LQSC_CLEAN_EVICT_DISABLE);
/* Wa_1405766107:icl
* Formerly known as WaCL2SFHalfMaxAlloc
*/
- I915_WRITE(GEN11_LSN_UNSLCVC,
- I915_READ(GEN11_LSN_UNSLCVC) |
- GEN11_LSN_UNSLCVC_GAFS_HALF_SF_MAXALLOC |
- GEN11_LSN_UNSLCVC_GAFS_HALF_CL2_MAXALLOC);
+ wa_write_or(dev_priv,
+ GEN11_LSN_UNSLCVC,
+ GEN11_LSN_UNSLCVC_GAFS_HALF_SF_MAXALLOC |
+ GEN11_LSN_UNSLCVC_GAFS_HALF_CL2_MAXALLOC);
/* Wa_220166154:icl
* Formerly known as WaDisCtxReload
*/
- I915_WRITE(GEN8_GAMW_ECO_DEV_RW_IA,
- I915_READ(GEN8_GAMW_ECO_DEV_RW_IA) |
- GAMW_ECO_DEV_CTX_RELOAD_DISABLE);
+ wa_write_or(dev_priv,
+ GEN8_GAMW_ECO_DEV_RW_IA,
+ GAMW_ECO_DEV_CTX_RELOAD_DISABLE);
/* Wa_1405779004:icl (pre-prod) */
if (IS_ICL_REVID(dev_priv, ICL_REVID_A0, ICL_REVID_A0))
- I915_WRITE(SLICE_UNIT_LEVEL_CLKGATE,
- I915_READ(SLICE_UNIT_LEVEL_CLKGATE) |
- MSCUNIT_CLKGATE_DIS);
+ wa_write_or(dev_priv,
+ SLICE_UNIT_LEVEL_CLKGATE,
+ MSCUNIT_CLKGATE_DIS);
/* Wa_1406680159:icl */
- I915_WRITE(SUBSLICE_UNIT_LEVEL_CLKGATE,
- I915_READ(SUBSLICE_UNIT_LEVEL_CLKGATE) |
- GWUNIT_CLKGATE_DIS);
+ wa_write_or(dev_priv,
+ SUBSLICE_UNIT_LEVEL_CLKGATE,
+ GWUNIT_CLKGATE_DIS);
/* Wa_1604302699:icl */
- I915_WRITE(GEN10_L3_CHICKEN_MODE_REGISTER,
- I915_READ(GEN10_L3_CHICKEN_MODE_REGISTER) |
- GEN11_I2M_WRITE_DISABLE);
+ wa_write_or(dev_priv,
+ GEN10_L3_CHICKEN_MODE_REGISTER,
+ GEN11_I2M_WRITE_DISABLE);
/* Wa_1406838659:icl (pre-prod) */
if (IS_ICL_REVID(dev_priv, ICL_REVID_A0, ICL_REVID_B0))
- I915_WRITE(INF_UNIT_LEVEL_CLKGATE,
- I915_READ(INF_UNIT_LEVEL_CLKGATE) |
- CGPSF_CLKGATE_DIS);
+ wa_write_or(dev_priv,
+ INF_UNIT_LEVEL_CLKGATE,
+ CGPSF_CLKGATE_DIS);
/* WaForwardProgressSoftReset:icl */
- I915_WRITE(GEN10_SCRATCH_LNCF2,
- I915_READ(GEN10_SCRATCH_LNCF2) |
- PMFLUSHDONE_LNICRSDROP |
- PMFLUSH_GAPL3UNBLOCK |
- PMFLUSHDONE_LNEBLK);
+ wa_write_or(dev_priv,
+ GEN10_SCRATCH_LNCF2,
+ PMFLUSHDONE_LNICRSDROP |
+ PMFLUSH_GAPL3UNBLOCK |
+ PMFLUSHDONE_LNEBLK);
/* Wa_1406463099:icl
* Formerly known as WaGamTlbPendError
*/
- I915_WRITE(GAMT_CHKN_BIT_REG,
- I915_READ(GAMT_CHKN_BIT_REG) |
- GAMT_CHKN_DISABLE_L3_COH_PIPE);
+ wa_write_or(dev_priv,
+ GAMT_CHKN_BIT_REG,
+ GAMT_CHKN_DISABLE_L3_COH_PIPE);
/* Wa_1406609255:icl (pre-prod) */
if (IS_ICL_REVID(dev_priv, ICL_REVID_A0, ICL_REVID_B0))
- I915_WRITE(GEN7_SARCHKMD,
- I915_READ(GEN7_SARCHKMD) |
- GEN7_DISABLE_DEMAND_PREFETCH |
- GEN7_DISABLE_SAMPLER_PREFETCH);
+ wa_write_or(dev_priv,
+ GEN7_SARCHKMD,
+ GEN7_DISABLE_DEMAND_PREFETCH |
+ GEN7_DISABLE_SAMPLER_PREFETCH);
}
void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)
--
2.19.1
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