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drm/i915/cnl: WA FtrEnableFastAnisoL1BankingFix 

WA to enable HW L1 Banking fix that allows aniso to operate
at full sample rate.

References: HSD#1937670

Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Oscar Mateo <oscar.mateo@intel.com>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Anuj Phogat <anuj.phogat@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170829230723.20898-1-rodrigo.vivi@intel.com
This commit is contained in:
Rodrigo Vivi 2017-08-29 16:07:23 -07:00
parent 91200c09d3
commit 392572feb0
2 changed files with 4 additions and 0 deletions
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1
drivers/gpu/drm/i915/i915_reg.h
View File

@ -8072,6 +8072,7 @@ enum {
#define HSW_SAMPLE_C_PERFORMANCE (1<<9)
#define GEN8_CENTROID_PIXEL_OPT_DIS (1<<8)
#define GEN9_DISABLE_OCL_OOB_SUPPRESS_LOGIC (1<<5)
#define CNL_FAST_ANISO_L1_BANKING_FIX (1<<4)
#define GEN8_SAMPLER_POWER_BYPASS_DIS (1<<1)
#define GEN9_HALF_SLICE_CHICKEN7 _MMIO(0xe194)

3
drivers/gpu/drm/i915/intel_engine_cs.c
View File

@ -1090,6 +1090,9 @@ static int cnl_init_workarounds(struct intel_engine_cs *engine)
/* WaPushConstantDereferenceHoldDisable:cnl */
WA_SET_BIT(GEN7_ROW_CHICKEN2, PUSH_CONSTANT_DEREF_DISABLE);
/* FtrEnableFastAnisoL1BankingFix: cnl */
WA_SET_BIT_MASKED(HALF_SLICE_CHICKEN3, CNL_FAST_ANISO_L1_BANKING_FIX);
/* WaEnablePreemptionGranularityControlByUMD:cnl */
ret= wa_ring_whitelist_reg(engine, GEN8_CS_CHICKEN1);
if (ret)