From: Haridhar Kalvala <haridhar.kalvala@xxxxxxxxx> [ Upstream commit 4b51210f98c2b89ce37aede5b8dc5105be0572c6 ] Wa_14017856879 implementation for mtl. Bspec: 46046 Signed-off-by: Haridhar Kalvala <haridhar.kalvala@xxxxxxxxx> Reviewed-by: Gustavo Sousa <gustavo.sousa@xxxxxxxxx> Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20230404173220.3175577-1-haridhar.kalvala@xxxxxxxxx Stable-dep-of: 81900e3a3775 ("drm/i915: disable sampler indirect state in bindless heap") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- 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 cd45a45066ccb..0c30738087a79 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h @@ -1162,7 +1162,9 @@ #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 526fb9cc36b9b..09455682967de 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -3035,6 +3035,11 @@ 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)) /* -- 2.39.2
