Quoting Haridhar Kalvala (2023-04-04 14:32:20) > Wa_14017856879 implementation for mtl. > > Bspec: 46046 > > Signed-off-by: Haridhar Kalvala <haridhar.kalvala@xxxxxxxxx> Reviewed-by: Gustavo Sousa <gustavo.sousa@xxxxxxxxx> > --- > drivers/gpu/drm/i915/gt/intel_gt_regs.h | 2 ++ > drivers/gpu/drm/i915/gt/intel_workarounds.c | 5 +++++ > 2 files changed, 7 insertions(+) > > diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h > index 35a4cfac2d20..492b3de6678d 100644 > --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h > +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h > @@ -1177,7 +1177,9 @@ > #define THREAD_EX_ARB_MODE_RR_AFTER_DEP REG_FIELD_PREP(THREAD_EX_ARB_MODE, 0x2) > > #define HSW_ROW_CHICKEN3 _MMIO(0xe49c) > +#define GEN9_ROW_CHICKEN3 MCR_REG(0xe49c) > #define HSW_ROW_CHICKEN3_L3_GLOBAL_ATOMICS_DISABLE (1 << 6) > +#define MTL_DISABLE_FIX_FOR_EOT_FLUSH REG_BIT(9) > > #define GEN8_ROW_CHICKEN MCR_REG(0xe4f0) > #define FLOW_CONTROL_ENABLE REG_BIT(15) > diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c > index 1c8e0e91a2fe..6ea453ddd011 100644 > --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c > +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c > @@ -2971,6 +2971,11 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li > > add_render_compute_tuning_settings(i915, wal); > > + if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_B0, STEP_FOREVER) || > + IS_MTL_GRAPHICS_STEP(i915, P, STEP_B0, STEP_FOREVER)) > + /* Wa_14017856879 */ > + wa_mcr_masked_en(wal, GEN9_ROW_CHICKEN3, MTL_DISABLE_FIX_FOR_EOT_FLUSH); > + > if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) || > IS_MTL_GRAPHICS_STEP(i915, P, STEP_A0, STEP_B0)) > /* > -- > 2.25.1 >
