On Tue, Nov 22, 2022 at 10:33:05AM -0800, Matt Atwood wrote: > Wa_18018764978 applies to specific steppings of DG2 (G10 C0+, > G11 and G12 A0+). Clean up style in function at the same time. > > Bspec: 66622 > > Signed-off-by: Matt Atwood <matthew.s.atwood@xxxxxxxxx> > --- > drivers/gpu/drm/i915/gt/intel_gt_regs.h | 3 +++ > drivers/gpu/drm/i915/gt/intel_workarounds.c | 9 +++++++-- > 2 files changed, 10 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h > index 80a979e6f6bec..74379d3c5a4de 100644 > --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h > +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h > @@ -457,6 +457,9 @@ > #define GEN8_L3CNTLREG _MMIO(0x7034) > #define GEN8_ERRDETBCTRL (1 << 9) > > +#define PSS_MODE2 _MMIO(0x703c) > +#define SCOREBOARD_STALL_FLUSH_CONTROL REG_BIT(5) > + > #define GEN7_SC_INSTDONE _MMIO(0x7100) > #define GEN12_SC_INSTDONE_EXTRA _MMIO(0x7104) > #define GEN12_SC_INSTDONE_EXTRA2 _MMIO(0x7108) > diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c > index 2afb4f80a954d..ce2be9470c36c 100644 > --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c > +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c > @@ -771,8 +771,13 @@ static void dg2_ctx_workarounds_init(struct intel_engine_cs *engine, > > /* Wa_14014947963:dg2 */ > if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_B0, STEP_FOREVER) || > - IS_DG2_G11(engine->i915) || IS_DG2_G12(engine->i915)) > - wa_masked_field_set(wal, VF_PREEMPTION, PREEMPTION_VERTEX_COUNT, 0x4000); > + IS_DG2_G11(engine->i915) || IS_DG2_G12(engine->i915)) > + wa_masked_field_set(wal, VF_PREEMPTION, PREEMPTION_VERTEX_COUNT, 0x4000); This new formatting is less correct than the original. It should be: if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_B0, STEP_FOREVER) || IS_DG2_G11(engine->i915) || IS_DG2_G12(engine->i915)) wa_masked_field_set(wal, VF_PREEMPTION, PREEMPTION_VERTEX_COUNT, 0x4000); And the new workaround below has the same mistake. Matt > + > + /* Wa_18018764978:dg2 */ > + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_C0, STEP_FOREVER) || > + IS_DG2_G11(engine->i915) || IS_DG2_G12(engine->i915)) > + wa_masked_en(wal, PSS_MODE2, SCOREBOARD_STALL_FLUSH_CONTROL); > > /* Wa_15010599737:dg2 */ > wa_masked_en(wal, CHICKEN_RASTER_1, DIS_SF_ROUND_NEAREST_EVEN); > -- > 2.38.1 > -- Matt Roper Graphics Software Engineer VTT-OSGC Platform Enablement Intel Corporation
