From edf176f48d87fa25ca93f09362707cf5314bf7ee Mon Sep 17 00:00:00 2001 From: Srinivasan Shanmugam Date: Tue, 15 Feb 2022 15:55:31 -0800 Subject: [PATCH] drm/i915/dg2: Move misplaced 'ctx' & 'gt' wa's to engine wa list Registers that belong to the shared render/compute reset domain need to be placed on an engine workaround list to ensure that they are properly re-applied whenever any RCS or CCS engine is reset, even if the registers do not belong to a specific engine's MMIO range. We have a number of workarounds today that are incorrectly implemented on the 'gt' workaround list and need to be moved accordingly. We also have one workaround (Wa_22012532006) that is incorrectly implemented on the context workaround list, even though the register it is adjusting is not part of the RCS engine's context image; it must also be moved. We'll have some workaround refactoring coming in the near future that deals with registers in the reset domain in a more clear way. But in the meantime, we should just move these workarounds to rcs_engine_wa_init() to place them on the RCS engine's workaround list. All production DG2 platforms will have an RCS engine (it's never fused off) so these registers will be properly restored after a domain reset triggered via an RCS engine _or_ a CCS engine. Cc: Matt Roper Signed-off-by: Srinivasan Shanmugam Reviewed-by: Matt Roper Signed-off-by: Matt Roper Link: https://patchwork.freedesktop.org/patch/msgid/20220215235531.2236399-1-matthew.d.roper@intel.com --- drivers/gpu/drm/i915/gt/intel_workarounds.c | 62 ++++++++++++++++------------- 1 file changed, 35 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 77ac294acc9d..1912a868bc0c 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -681,12 +681,6 @@ static void dg2_ctx_workarounds_init(struct intel_engine_cs *engine, /* Wa_16013271637:dg2 */ wa_masked_en(wal, SLICE_COMMON_ECO_CHICKEN1, MSC_MSAA_REODER_BUF_BYPASS_DISABLE); - - /* Wa_22012532006:dg2 */ - if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_C0) || - IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_A0, STEP_B0)) - wa_masked_en(wal, GEN9_HALF_SLICE_CHICKEN7, - DG2_DISABLE_ROUND_ENABLE_ALLOW_FOR_SSLA); } static void fakewa_disable_nestedbb_mode(struct intel_engine_cs *engine, @@ -1438,10 +1432,6 @@ dg2_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) } if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_B0)) { - /* Wa_14010680813:dg2_g10 */ - wa_write_or(wal, GEN12_GAMSTLB_CTRL, CONTROL_BLOCK_CLKGATE_DIS | - EGRESS_BLOCK_CLKGATE_DIS | TAG_BLOCK_CLKGATE_DIS); - /* Wa_14010948348:dg2_g10 */ wa_write_or(wal, UNSLCGCTL9430, MSQDUNIT_CLKGATE_DIS); @@ -1488,16 +1478,6 @@ dg2_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) wa_write_or(wal, SSMCGCTL9530, RTFUNIT_CLKGATE_DIS); } - if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_B0) || - IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_B0)) { - /* Wa_14012362059:dg2 */ - wa_write_or(wal, GEN12_MERT_MOD_CTRL, FORCE_MISS_FTLB); - } - - /* Wa_1509235366:dg2 */ - wa_write_or(wal, GEN12_GAMCNTRL_CTRL, INVALIDATION_BROADCAST_MODE_DIS | - GLOBAL_INVALIDATION_MODE); - /* Wa_14014830051:dg2 */ wa_write_clr(wal, SARB_CHICKEN1, COMP_CKN_IN); @@ -1506,14 +1486,7 @@ dg2_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) * recommended tuning settings documented in the bspec's * performance guide section. */ - wa_write_or(wal, XEHP_L3SCQREG7, BLEND_FILL_CACHING_OPT_DIS); wa_write_or(wal, GEN12_SQCM, EN_32B_ACCESS); - - /* Wa_18018781329:dg2 */ - wa_write_or(wal, RENDER_MOD_CTRL, FORCE_MISS_FTLB); - wa_write_or(wal, COMP_MOD_CTRL, FORCE_MISS_FTLB); - wa_write_or(wal, VDBX_MOD_CTRL, FORCE_MISS_FTLB); - wa_write_or(wal, VEBX_MOD_CTRL, FORCE_MISS_FTLB); } static void @@ -2047,6 +2020,23 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) if (IS_DG2(i915)) { /* Wa_14015227452:dg2 */ wa_masked_en(wal, GEN9_ROW_CHICKEN4, XEHP_DIS_BBL_SYSPIPE); + + /* Wa_1509235366:dg2 */ + wa_write_or(wal, GEN12_GAMCNTRL_CTRL, INVALIDATION_BROADCAST_MODE_DIS | + GLOBAL_INVALIDATION_MODE); + + /* + * The following are not actually "workarounds" but rather + * recommended tuning settings documented in the bspec's + * performance guide section. + */ + wa_write_or(wal, XEHP_L3SCQREG7, BLEND_FILL_CACHING_OPT_DIS); + + /* Wa_18018781329:dg2 */ + wa_write_or(wal, RENDER_MOD_CTRL, FORCE_MISS_FTLB); + wa_write_or(wal, COMP_MOD_CTRL, FORCE_MISS_FTLB); + wa_write_or(wal, VDBX_MOD_CTRL, FORCE_MISS_FTLB); + wa_write_or(wal, VEBX_MOD_CTRL, FORCE_MISS_FTLB); } if (IS_DG2_GRAPHICS_STEP(i915, G11, STEP_A0, STEP_B0)) { @@ -2147,6 +2137,24 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal) IS_DG2_GRAPHICS_STEP(i915, G11, STEP_A0, STEP_B0)) wa_write_or(wal, RT_CTRL, DIS_NULL_QUERY); + /* Wa_22012532006:dg2 */ + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_C0) || + IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_A0, STEP_B0)) + wa_masked_en(wal, GEN9_HALF_SLICE_CHICKEN7, + DG2_DISABLE_ROUND_ENABLE_ALLOW_FOR_SSLA); + + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_B0)) { + /* Wa_14010680813:dg2_g10 */ + wa_write_or(wal, GEN12_GAMSTLB_CTRL, CONTROL_BLOCK_CLKGATE_DIS | + EGRESS_BLOCK_CLKGATE_DIS | TAG_BLOCK_CLKGATE_DIS); + } + + if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_B0) || + IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_A0, STEP_B0)) { + /* Wa_14012362059:dg2 */ + wa_write_or(wal, GEN12_MERT_MOD_CTRL, FORCE_MISS_FTLB); + } + if (IS_DG1_GRAPHICS_STEP(i915, STEP_A0, STEP_B0) || IS_TGL_UY_GRAPHICS_STEP(i915, STEP_A0, STEP_B0)) { /* -- 2.11.0