[Intel-gfx] [PATCH 0/4] Drop support for pre-production DG2 hardware

[Intel-gfx] [PATCH 0/4] Drop support for pre-production DG2 hardware

[Matt Roper]

We generally only keep support for pre-production steppings and
workarounds around in the driver until the next major platform is
implemented.  Now that MTL is in good shape in i915 (and subsequent
platforms like LNL are being implemented solely on the Xe driver) it's
time to drop the DG2 pre-production hardware support.

DG2 production hardware always has display stepping C0 or later.  On the
GT side, production hardware starts with C0 (for DG2-G10), B1 (for
DG2-G11), and A1 (for DG2-G12).  This means we can drop quite a few
pre-production workarounds, and simplify the handling of several others.


Matt Roper (4):
  drm/i915/dg2: Recognize pre-production hardware
  drm/i915/dg2: Drop pre-production display workarounds
  drm/i915/dg2: Drop pre-production GT workarounds
  drm/i915: Tidy workaround definitions

 drivers/gpu/drm/i915/display/intel_display.c  |   2 +-
 .../drm/i915/display/skl_universal_plane.c    |   4 -
 drivers/gpu/drm/i915/gt/intel_lrc.c           |  34 +-
 drivers/gpu/drm/i915/gt/intel_mocs.c          |  21 +-
 drivers/gpu/drm/i915/gt/intel_rc6.c           |   6 +-
 drivers/gpu/drm/i915/gt/intel_workarounds.c   | 301 +++---------------
 drivers/gpu/drm/i915/gt/uc/intel_guc.c        |  20 +-
 drivers/gpu/drm/i915/i915_driver.c            |   3 +
 drivers/gpu/drm/i915/i915_drv.h               |  23 --
 drivers/gpu/drm/i915/i915_perf.c              |  20 --
 drivers/gpu/drm/i915/intel_clock_gating.c     |   8 -
 11 files changed, 66 insertions(+), 376 deletions(-)

-- 
2.41.0

[Intel-gfx] [PATCH 1/4] drm/i915/dg2: Recognize pre-production hardware

[Matt Roper]

The first production SoC steppings for DG2 were C0 (for G10), B1 (for
G11), and A1 (for G12).  This corresponds to PCI revision IDs 0x8, 0x5,
and 0x1 respectively.  Add this information to the driver's
pre-production detection.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
 drivers/gpu/drm/i915/i915_driver.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index b870c0df081a..0201115746a7 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -183,6 +183,9 @@ static void intel_detect_preproduction_hw(struct drm_i915_private *dev_priv)
 	pre |= IS_ICELAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x7;
 	pre |= IS_TIGERLAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x1;
 	pre |= IS_DG1(dev_priv) && INTEL_REVID(dev_priv) < 0x1;
+	pre |= IS_DG2_G10(dev_priv) && INTEL_REVID(dev_priv) < 0x8;
+	pre |= IS_DG2_G11(dev_priv) && INTEL_REVID(dev_priv) < 0x5;
+	pre |= IS_DG2_G12(dev_priv) && INTEL_REVID(dev_priv) < 0x1;
 
 	if (pre) {
 		drm_err(&dev_priv->drm, "This is a pre-production stepping. "
-- 
2.41.0

[Intel-gfx] [PATCH 2/4] drm/i915/dg2: Drop pre-production display workarounds

[Matt Roper]

All production DG2 cards have display stepping C0 or later.  We can drop
Wa_14013215631 (only applies to pre-C0) and make Wa_14010547955
unconditional (applies to everything B0 and beyond).  Also drop the
now-unused IS_DG2_DISPLAY_STEP macro.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c       | 2 +-
 drivers/gpu/drm/i915/display/skl_universal_plane.c | 4 ----
 drivers/gpu/drm/i915/i915_drv.h                    | 4 ----
 3 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 763ab569d8f3..8c81206ce90d 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -726,7 +726,7 @@ static void icl_set_pipe_chicken(const struct intel_crtc_state *crtc_state)
 		tmp |= UNDERRUN_RECOVERY_DISABLE_ADLP;
 
 	/* Wa_14010547955:dg2 */
-	if (IS_DG2_DISPLAY_STEP(dev_priv, STEP_B0, STEP_FOREVER))
+	if (IS_DG2(dev_priv))
 		tmp |= DG2_RENDER_CCSTAG_4_3_EN;
 
 	intel_de_write(dev_priv, PIPE_CHICKEN(pipe), tmp);
diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
index ffc15d278a39..a408ec2d3958 100644
--- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
+++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
@@ -2203,10 +2203,6 @@ static bool gen12_plane_has_mc_ccs(struct drm_i915_private *i915,
 	if (IS_ALDERLAKE_P(i915) && IS_DISPLAY_STEP(i915, STEP_A0, STEP_B0))
 		return false;
 
-	/* Wa_14013215631 */
-	if (IS_DG2_DISPLAY_STEP(i915, STEP_A0, STEP_C0))
-		return false;
-
 	return plane_id < PLANE_SPRITE4;
 }
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 7a8ce7239bc9..7f8fa0eb9dc6 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -689,10 +689,6 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 	(IS_SUBPLATFORM(__i915, INTEL_DG2, INTEL_SUBPLATFORM_##variant) && \
 	 IS_GRAPHICS_STEP(__i915, since, until))
 
-#define IS_DG2_DISPLAY_STEP(__i915, since, until) \
-	(IS_DG2(__i915) && \
-	 IS_DISPLAY_STEP(__i915, since, until))
-
 #define IS_PVC_BD_STEP(__i915, since, until) \
 	(IS_PONTEVECCHIO(__i915) && \
 	 IS_BASEDIE_STEP(__i915, since, until))
-- 
2.41.0

[Intel-gfx] [PATCH 3/4] drm/i915/dg2: Drop pre-production GT workarounds

[Matt Roper]

DG2 first production steppings were C0 (for DG2-G10), B1 (for DG2-G11),
and A1 (for DG2-G12).  Several workarounds that apply onto to
pre-production hardware can be dropped.  Furthermore, several
workarounds that apply to all production steppings can have their
conditions simplified to no longer check the GT stepping.  Finally, the
now-unused IS_DG2_GRAPHICS_STEP macro can be dropped.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_lrc.c         |  34 +---
 drivers/gpu/drm/i915/gt/intel_mocs.c        |  21 +-
 drivers/gpu/drm/i915/gt/intel_rc6.c         |   6 +-
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 211 +-------------------
 drivers/gpu/drm/i915/gt/uc/intel_guc.c      |  20 +-
 drivers/gpu/drm/i915/i915_drv.h             |  19 --
 drivers/gpu/drm/i915/i915_perf.c            |  20 --
 drivers/gpu/drm/i915/intel_clock_gating.c   |   8 -
 8 files changed, 21 insertions(+), 318 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 957d0aeb0c02..bc7ce2c2b959 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -1315,29 +1315,6 @@ gen12_emit_cmd_buf_wa(const struct intel_context *ce, u32 *cs)
 	return cs;
 }
 
-/*
- * On DG2 during context restore of a preempted context in GPGPU mode,
- * RCS restore hang is detected. This is extremely timing dependent.
- * To address this below sw wabb is implemented for DG2 A steppings.
- */
-static u32 *
-dg2_emit_rcs_hang_wabb(const struct intel_context *ce, u32 *cs)
-{
-	*cs++ = MI_LOAD_REGISTER_IMM(1);
-	*cs++ = i915_mmio_reg_offset(GEN12_STATE_ACK_DEBUG(ce->engine->mmio_base));
-	*cs++ = 0x21;
-
-	*cs++ = MI_LOAD_REGISTER_REG;
-	*cs++ = i915_mmio_reg_offset(RING_NOPID(ce->engine->mmio_base));
-	*cs++ = i915_mmio_reg_offset(XEHP_CULLBIT1);
-
-	*cs++ = MI_LOAD_REGISTER_REG;
-	*cs++ = i915_mmio_reg_offset(RING_NOPID(ce->engine->mmio_base));
-	*cs++ = i915_mmio_reg_offset(XEHP_CULLBIT2);
-
-	return cs;
-}
-
 /*
  * The bspec's tuning guide asks us to program a vertical watermark value of
  * 0x3FF.  However this register is not saved/restored properly by the
@@ -1362,14 +1339,8 @@ gen12_emit_indirect_ctx_rcs(const struct intel_context *ce, u32 *cs)
 	cs = gen12_emit_cmd_buf_wa(ce, cs);
 	cs = gen12_emit_restore_scratch(ce, cs);
 
-	/* Wa_22011450934:dg2 */
-	if (IS_DG2_GRAPHICS_STEP(ce->engine->i915, G10, STEP_A0, STEP_B0) ||
-	    IS_DG2_GRAPHICS_STEP(ce->engine->i915, G11, STEP_A0, STEP_B0))
-		cs = dg2_emit_rcs_hang_wabb(ce, cs);
-
 	/* Wa_16013000631:dg2 */
-	if (IS_DG2_GRAPHICS_STEP(ce->engine->i915, G10, STEP_B0, STEP_C0) ||
-	    IS_DG2_G11(ce->engine->i915))
+	if (IS_DG2_G11(ce->engine->i915))
 		cs = gen8_emit_pipe_control(cs, PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE, 0);
 
 	cs = gen12_emit_aux_table_inv(ce->engine, cs);
@@ -1390,8 +1361,7 @@ gen12_emit_indirect_ctx_xcs(const struct intel_context *ce, u32 *cs)
 	cs = gen12_emit_restore_scratch(ce, cs);
 
 	/* Wa_16013000631:dg2 */
-	if (IS_DG2_GRAPHICS_STEP(ce->engine->i915, G10, STEP_B0, STEP_C0) ||
-	    IS_DG2_G11(ce->engine->i915))
+	if (IS_DG2_G11(ce->engine->i915))
 		if (ce->engine->class == COMPUTE_CLASS)
 			cs = gen8_emit_pipe_control(cs,
 						    PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE,
diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.c b/drivers/gpu/drm/i915/gt/intel_mocs.c
index 2c014407225c..bf8b42d2d327 100644
--- a/drivers/gpu/drm/i915/gt/intel_mocs.c
+++ b/drivers/gpu/drm/i915/gt/intel_mocs.c
@@ -404,18 +404,6 @@ static const struct drm_i915_mocs_entry dg2_mocs_table[] = {
 	MOCS_ENTRY(3, 0, L3_3_WB | L3_LKUP(1)),
 };
 
-static const struct drm_i915_mocs_entry dg2_mocs_table_g10_ax[] = {
-	/* Wa_14011441408: Set Go to Memory for MOCS#0 */
-	MOCS_ENTRY(0, 0, L3_1_UC | L3_GLBGO(1) | L3_LKUP(1)),
-	/* UC - Coherent; GO:Memory */
-	MOCS_ENTRY(1, 0, L3_1_UC | L3_GLBGO(1) | L3_LKUP(1)),
-	/* UC - Non-Coherent; GO:Memory */
-	MOCS_ENTRY(2, 0, L3_1_UC | L3_GLBGO(1)),
-
-	/* WB - LC */
-	MOCS_ENTRY(3, 0, L3_3_WB | L3_LKUP(1)),
-};
-
 static const struct drm_i915_mocs_entry pvc_mocs_table[] = {
 	/* Error */
 	MOCS_ENTRY(0, 0, L3_3_WB),
@@ -521,13 +509,8 @@ static unsigned int get_mocs_settings(const struct drm_i915_private *i915,
 		table->wb_index = 2;
 		table->unused_entries_index = 2;
 	} else if (IS_DG2(i915)) {
-		if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_A0, STEP_B0)) {
-			table->size = ARRAY_SIZE(dg2_mocs_table_g10_ax);
-			table->table = dg2_mocs_table_g10_ax;
-		} else {
-			table->size = ARRAY_SIZE(dg2_mocs_table);
-			table->table = dg2_mocs_table;
-		}
+		table->size = ARRAY_SIZE(dg2_mocs_table);
+		table->table = dg2_mocs_table;
 		table->uc_index = 1;
 		table->n_entries = GEN9_NUM_MOCS_ENTRIES;
 		table->unused_entries_index = 3;
diff --git a/drivers/gpu/drm/i915/gt/intel_rc6.c b/drivers/gpu/drm/i915/gt/intel_rc6.c
index 58bb1c55294c..90933fb8cb97 100644
--- a/drivers/gpu/drm/i915/gt/intel_rc6.c
+++ b/drivers/gpu/drm/i915/gt/intel_rc6.c
@@ -118,14 +118,12 @@ static void gen11_rc6_enable(struct intel_rc6 *rc6)
 			GEN6_RC_CTL_EI_MODE(1);
 
 	/*
-	 * Wa_16011777198 and BSpec 52698 - Render powergating must be off.
+	 * BSpec 52698 - Render powergating must be off.
 	 * FIXME BSpec is outdated, disabling powergating for MTL is just
 	 * temporary wa and should be removed after fixing real cause
 	 * of forcewake timeouts.
 	 */
-	if (IS_METEORLAKE(gt->i915) ||
-	    IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_C0) ||
-	    IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_B0))
+	if (IS_METEORLAKE(gt->i915))
 		pg_enable =
 			GEN9_MEDIA_PG_ENABLE |
 			GEN11_MEDIA_SAMPLER_PG_ENABLE;
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 3ae0dbd39eaa..7b426f3015b3 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -764,39 +764,15 @@ static void dg2_ctx_workarounds_init(struct intel_engine_cs *engine,
 {
 	dg2_ctx_gt_tuning_init(engine, wal);
 
-	/* Wa_16011186671:dg2_g11 */
-	if (IS_DG2_GRAPHICS_STEP(engine->i915, G11, STEP_A0, STEP_B0)) {
-		wa_mcr_masked_dis(wal, VFLSKPD, DIS_MULT_MISS_RD_SQUASH);
-		wa_mcr_masked_en(wal, VFLSKPD, DIS_OVER_FETCH_CACHE);
-	}
-
-	if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_B0)) {
-		/* Wa_14010469329:dg2_g10 */
-		wa_mcr_masked_en(wal, XEHP_COMMON_SLICE_CHICKEN3,
-				 XEHP_DUAL_SIMD8_SEQ_MERGE_DISABLE);
-
-		/*
-		 * Wa_22010465075:dg2_g10
-		 * Wa_22010613112:dg2_g10
-		 * Wa_14010698770:dg2_g10
-		 */
-		wa_mcr_masked_en(wal, XEHP_COMMON_SLICE_CHICKEN3,
-				 GEN12_DISABLE_CPS_AWARE_COLOR_PIPE);
-	}
-
 	/* Wa_16013271637:dg2 */
 	wa_mcr_masked_en(wal, XEHP_SLICE_COMMON_ECO_CHICKEN1,
 			 MSC_MSAA_REODER_BUF_BYPASS_DISABLE);
 
 	/* 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);
+	wa_masked_field_set(wal, VF_PREEMPTION, PREEMPTION_VERTEX_COUNT, 0x4000);
 
 	/* 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_mcr_masked_en(wal, XEHP_PSS_MODE2, SCOREBOARD_STALL_FLUSH_CONTROL);
+	wa_mcr_masked_en(wal, XEHP_PSS_MODE2, SCOREBOARD_STALL_FLUSH_CONTROL);
 
 	/* Wa_15010599737:dg2 */
 	wa_mcr_masked_en(wal, CHICKEN_RASTER_1, DIS_SF_ROUND_NEAREST_EVEN);
@@ -1606,31 +1582,11 @@ xehpsdv_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
 static void
 dg2_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
 {
-	struct intel_engine_cs *engine;
-	int id;
-
 	xehp_init_mcr(gt, wal);
 
 	/* Wa_14011060649:dg2 */
 	wa_14011060649(gt, wal);
 
-	/*
-	 * Although there are per-engine instances of these registers,
-	 * they technically exist outside the engine itself and are not
-	 * impacted by engine resets.  Furthermore, they're part of the
-	 * GuC blacklist so trying to treat them as engine workarounds
-	 * will result in GuC initialization failure and a wedged GPU.
-	 */
-	for_each_engine(engine, gt, id) {
-		if (engine->class != VIDEO_DECODE_CLASS)
-			continue;
-
-		/* Wa_16010515920:dg2_g10 */
-		if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_B0))
-			wa_write_or(wal, VDBOX_CGCTL3F18(engine->mmio_base),
-				    ALNUNIT_CLKGATE_DIS);
-	}
-
 	if (IS_DG2_G10(gt->i915)) {
 		/* Wa_22010523718:dg2 */
 		wa_write_or(wal, UNSLICE_UNIT_LEVEL_CLKGATE,
@@ -1641,65 +1597,6 @@ dg2_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
 				DSS_ROUTER_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_mcr_write_or(wal, XEHP_MERT_MOD_CTRL, FORCE_MISS_FTLB);
-	}
-
-	if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_B0)) {
-		/* Wa_14010948348:dg2_g10 */
-		wa_write_or(wal, UNSLCGCTL9430, MSQDUNIT_CLKGATE_DIS);
-
-		/* Wa_14011037102:dg2_g10 */
-		wa_write_or(wal, UNSLCGCTL9444, LTCDD_CLKGATE_DIS);
-
-		/* Wa_14011371254:dg2_g10 */
-		wa_mcr_write_or(wal, XEHP_SLICE_UNIT_LEVEL_CLKGATE, NODEDSS_CLKGATE_DIS);
-
-		/* Wa_14011431319:dg2_g10 */
-		wa_write_or(wal, UNSLCGCTL9440, GAMTLBOACS_CLKGATE_DIS |
-			    GAMTLBVDBOX7_CLKGATE_DIS |
-			    GAMTLBVDBOX6_CLKGATE_DIS |
-			    GAMTLBVDBOX5_CLKGATE_DIS |
-			    GAMTLBVDBOX4_CLKGATE_DIS |
-			    GAMTLBVDBOX3_CLKGATE_DIS |
-			    GAMTLBVDBOX2_CLKGATE_DIS |
-			    GAMTLBVDBOX1_CLKGATE_DIS |
-			    GAMTLBVDBOX0_CLKGATE_DIS |
-			    GAMTLBKCR_CLKGATE_DIS |
-			    GAMTLBGUC_CLKGATE_DIS |
-			    GAMTLBBLT_CLKGATE_DIS);
-		wa_write_or(wal, UNSLCGCTL9444, GAMTLBGFXA0_CLKGATE_DIS |
-			    GAMTLBGFXA1_CLKGATE_DIS |
-			    GAMTLBCOMPA0_CLKGATE_DIS |
-			    GAMTLBCOMPA1_CLKGATE_DIS |
-			    GAMTLBCOMPB0_CLKGATE_DIS |
-			    GAMTLBCOMPB1_CLKGATE_DIS |
-			    GAMTLBCOMPC0_CLKGATE_DIS |
-			    GAMTLBCOMPC1_CLKGATE_DIS |
-			    GAMTLBCOMPD0_CLKGATE_DIS |
-			    GAMTLBCOMPD1_CLKGATE_DIS |
-			    GAMTLBMERT_CLKGATE_DIS   |
-			    GAMTLBVEBOX3_CLKGATE_DIS |
-			    GAMTLBVEBOX2_CLKGATE_DIS |
-			    GAMTLBVEBOX1_CLKGATE_DIS |
-			    GAMTLBVEBOX0_CLKGATE_DIS);
-
-		/* Wa_14010569222:dg2_g10 */
-		wa_write_or(wal, UNSLICE_UNIT_LEVEL_CLKGATE,
-			    GAMEDIA_CLKGATE_DIS);
-
-		/* Wa_14011028019:dg2_g10 */
-		wa_mcr_write_or(wal, SSMCGCTL9530, RTFUNIT_CLKGATE_DIS);
-
-		/* Wa_14010680813:dg2_g10 */
-		wa_mcr_write_or(wal, XEHP_GAMSTLB_CTRL,
-				CONTROL_BLOCK_CLKGATE_DIS |
-				EGRESS_BLOCK_CLKGATE_DIS |
-				TAG_BLOCK_CLKGATE_DIS);
-	}
-
 	/* Wa_14014830051:dg2 */
 	wa_mcr_write_clr(wal, SARB_CHICKEN1, COMP_CKN_IN);
 
@@ -2242,29 +2139,10 @@ static void dg2_whitelist_build(struct intel_engine_cs *engine)
 
 	switch (engine->class) {
 	case RENDER_CLASS:
-		/*
-		 * Wa_1507100340:dg2_g10
-		 *
-		 * This covers 4 registers which are next to one another :
-		 *   - PS_INVOCATION_COUNT
-		 *   - PS_INVOCATION_COUNT_UDW
-		 *   - PS_DEPTH_COUNT
-		 *   - PS_DEPTH_COUNT_UDW
-		 */
-		if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_B0))
-			whitelist_reg_ext(w, PS_INVOCATION_COUNT,
-					  RING_FORCE_TO_NONPRIV_ACCESS_RD |
-					  RING_FORCE_TO_NONPRIV_RANGE_4);
-
 		/* Required by recommended tuning setting (not a workaround) */
 		whitelist_mcr_reg(w, XEHP_COMMON_SLICE_CHICKEN3);
 
 		break;
-	case COMPUTE_CLASS:
-		/* Wa_16011157294:dg2_g10 */
-		if (IS_DG2_GRAPHICS_STEP(engine->i915, G10, STEP_A0, STEP_B0))
-			whitelist_reg(w, GEN9_CTX_PREEMPT_REG);
-		break;
 	default:
 		break;
 	}
@@ -2415,12 +2293,6 @@ engine_fake_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 	}
 }
 
-static bool needs_wa_1308578152(struct intel_engine_cs *engine)
-{
-	return intel_sseu_find_first_xehp_dss(&engine->gt->info.sseu, 0, 0) >=
-		GEN_DSS_PER_GSLICE;
-}
-
 static void
 rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 {
@@ -2435,42 +2307,20 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 
 	if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) ||
 	    IS_MTL_GRAPHICS_STEP(i915, P, STEP_A0, STEP_B0) ||
-	    IS_DG2_GRAPHICS_STEP(i915, G10, STEP_B0, STEP_FOREVER) ||
-	    IS_DG2_G11(i915) || IS_DG2_G12(i915)) {
+	    IS_DG2(i915)) {
 		/* Wa_1509727124 */
 		wa_mcr_masked_en(wal, GEN10_SAMPLER_MODE,
 				 SC_DISABLE_POWER_OPTIMIZATION_EBB);
 	}
 
-	if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_B0, STEP_FOREVER) ||
-	    IS_DG2_G11(i915) || IS_DG2_G12(i915) ||
-	    IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0)) {
+	if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) ||
+	    IS_DG2(i915)) {
 		/* Wa_22012856258 */
 		wa_mcr_masked_en(wal, GEN8_ROW_CHICKEN2,
 				 GEN12_DISABLE_READ_SUPPRESSION);
 	}
 
-	if (IS_DG2_GRAPHICS_STEP(i915, G11, STEP_A0, STEP_B0)) {
-		/* Wa_14013392000:dg2_g11 */
-		wa_mcr_masked_en(wal, GEN8_ROW_CHICKEN2, GEN12_ENABLE_LARGE_GRF_MODE);
-	}
-
-	if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_A0, STEP_B0) ||
-	    IS_DG2_GRAPHICS_STEP(i915, G11, STEP_A0, STEP_B0)) {
-		/* Wa_14012419201:dg2 */
-		wa_mcr_masked_en(wal, GEN9_ROW_CHICKEN4,
-				 GEN12_DISABLE_HDR_PAST_PAYLOAD_HOLD_FIX);
-	}
-
-	/* Wa_1308578152:dg2_g10 when first gslice is fused off */
-	if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_B0, STEP_C0) &&
-	    needs_wa_1308578152(engine)) {
-		wa_masked_dis(wal, GEN12_CS_DEBUG_MODE1_CCCSUNIT_BE_COMMON,
-			      GEN12_REPLAY_MODE_GRANULARITY);
-	}
-
-	if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_B0, STEP_FOREVER) ||
-	    IS_DG2_G11(i915) || IS_DG2_G12(i915)) {
+	if (IS_DG2(i915)) {
 		/*
 		 * Wa_22010960976:dg2
 		 * Wa_14013347512:dg2
@@ -2479,34 +2329,7 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 				  LSC_L1_FLUSH_CTL_3D_DATAPORT_FLUSH_EVENTS_MASK);
 	}
 
-	if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_A0, STEP_B0)) {
-		/*
-		 * Wa_1608949956:dg2_g10
-		 * Wa_14010198302:dg2_g10
-		 */
-		wa_mcr_masked_en(wal, GEN8_ROW_CHICKEN,
-				 MDQ_ARBITRATION_MODE | UGM_BACKUP_MODE);
-	}
-
-	if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_A0, STEP_B0))
-		/* Wa_22010430635:dg2 */
-		wa_mcr_masked_en(wal,
-				 GEN9_ROW_CHICKEN4,
-				 GEN12_DISABLE_GRF_CLEAR);
-
-	/* Wa_14013202645:dg2 */
-	if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_B0, STEP_C0) ||
-	    IS_DG2_GRAPHICS_STEP(i915, G11, STEP_A0, STEP_B0))
-		wa_mcr_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_mcr_masked_en(wal, GEN9_HALF_SLICE_CHICKEN7,
-				 DG2_DISABLE_ROUND_ENABLE_ALLOW_FOR_SSLA);
-
-	if (IS_DG2_GRAPHICS_STEP(i915, G11, STEP_B0, STEP_FOREVER) ||
-	    IS_DG2_G10(i915)) {
+	if (IS_DG2_G11(i915) || IS_DG2_G10(i915)) {
 		/* Wa_22014600077:dg2 */
 		wa_mcr_add(wal, GEN10_CACHE_MODE_SS, 0,
 			   _MASKED_BIT_ENABLE(ENABLE_EU_COUNT_FOR_TDL_FLUSH),
@@ -3050,8 +2873,7 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
 
 	if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) ||
 	    IS_MTL_GRAPHICS_STEP(i915, P, STEP_A0, STEP_B0) ||
-	    IS_DG2_GRAPHICS_STEP(i915, G10, STEP_B0, STEP_FOREVER) ||
-	    IS_DG2_G11(i915) || IS_DG2_G12(i915)) {
+	    IS_DG2(i915)) {
 		/* Wa_22013037850 */
 		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0_UDW,
 				DISABLE_128B_EVICTION_COMMAND_UDW);
@@ -3072,8 +2894,7 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
 		wa_masked_en(wal, VFG_PREEMPTION_CHICKEN, POLYGON_TRIFAN_LINELOOP_DISABLE);
 	}
 
-	if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_B0, STEP_C0) ||
-	    IS_DG2_G11(i915)) {
+	if (IS_DG2_G11(i915)) {
 		/*
 		 * Wa_22012826095:dg2
 		 * Wa_22013059131:dg2
@@ -3087,18 +2908,6 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
 				FORCE_1_SUB_MESSAGE_PER_FRAGMENT);
 	}
 
-	if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_A0, STEP_B0)) {
-		/*
-		 * Wa_14010918519:dg2_g10
-		 *
-		 * LSC_CHICKEN_BIT_0 always reads back as 0 is this stepping,
-		 * so ignoring verification.
-		 */
-		wa_mcr_add(wal, LSC_CHICKEN_BIT_0_UDW, 0,
-			   FORCE_SLM_FENCE_SCOPE_TO_TILE | FORCE_UGM_FENCE_SCOPE_TO_TILE,
-			   0, false);
-	}
-
 	if (IS_XEHPSDV(i915)) {
 		/* Wa_1409954639 */
 		wa_mcr_masked_en(wal,
@@ -3131,7 +2940,7 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
 		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0_UDW, DIS_CHAIN_2XSIMD8);
 	}
 
-	if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_A0, STEP_C0) || IS_DG2_G11(i915))
+	if (IS_DG2_G11(i915))
 		/*
 		 * Wa_22012654132
 		 *
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index 569b5fe94c41..82a2ecc12b21 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -272,18 +272,14 @@ static u32 guc_ctl_wa_flags(struct intel_guc *guc)
 	    GRAPHICS_VER_FULL(gt->i915) < IP_VER(12, 50))
 		flags |= GUC_WA_POLLCS;
 
-	/* Wa_16011759253:dg2_g10:a0 */
-	if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_B0))
-		flags |= GUC_WA_GAM_CREDITS;
-
 	/* Wa_14014475959 */
 	if (IS_MTL_GRAPHICS_STEP(gt->i915, M, STEP_A0, STEP_B0) ||
 	    IS_DG2(gt->i915))
 		flags |= GUC_WA_HOLD_CCS_SWITCHOUT;
 
 	/*
-	 * Wa_14012197797:dg2_g10:a0,dg2_g11:a0
-	 * Wa_22011391025:dg2_g10,dg2_g11,dg2_g12
+	 * Wa_14012197797
+	 * Wa_22011391025
 	 *
 	 * The same WA bit is used for both and 22011391025 is applicable to
 	 * all DG2.
@@ -297,17 +293,11 @@ static u32 guc_ctl_wa_flags(struct intel_guc *guc)
 	    GRAPHICS_VER_FULL(gt->i915) < IP_VER(12, 70)))
 		flags |= GUC_WA_PRE_PARSER;
 
-	/* Wa_16011777198:dg2 */
-	if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_C0) ||
-	    IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_B0))
-		flags |= GUC_WA_RCS_RESET_BEFORE_RC6;
-
 	/*
-	 * Wa_22012727170:dg2_g10[a0-c0), dg2_g11[a0..)
-	 * Wa_22012727685:dg2_g11[a0..)
+	 * Wa_22012727170
+	 * Wa_22012727685
 	 */
-	if (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_C0) ||
-	    IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_FOREVER))
+	if (IS_DG2_G11(gt->i915))
 		flags |= GUC_WA_CONTEXT_ISOLATION;
 
 	/* Wa_16015675438 */
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 7f8fa0eb9dc6..d4568e31b777 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -670,25 +670,6 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 	(IS_METEORLAKE(__i915) && \
 	 IS_MEDIA_STEP(__i915, since, until))
 
-/*
- * DG2 hardware steppings are a bit unusual.  The hardware design was forked to
- * create three variants (G10, G11, and G12) which each have distinct
- * workaround sets.  The G11 and G12 forks of the DG2 design reset the GT
- * stepping back to "A0" for their first iterations, even though they're more
- * similar to a G10 B0 stepping and G10 C0 stepping respectively in terms of
- * functionality and workarounds.  However the display stepping does not reset
- * in the same manner --- a specific stepping like "B0" has a consistent
- * meaning regardless of whether it belongs to a G10, G11, or G12 DG2.
- *
- * TLDR:  All GT workarounds and stepping-specific logic must be applied in
- * relation to a specific subplatform (G10/G11/G12), whereas display workarounds
- * and stepping-specific logic will be applied with a general DG2-wide stepping
- * number.
- */
-#define IS_DG2_GRAPHICS_STEP(__i915, variant, since, until) \
-	(IS_SUBPLATFORM(__i915, INTEL_DG2, INTEL_SUBPLATFORM_##variant) && \
-	 IS_GRAPHICS_STEP(__i915, since, until))
-
 #define IS_PVC_BD_STEP(__i915, since, until) \
 	(IS_PONTEVECCHIO(__i915) && \
 	 IS_BASEDIE_STEP(__i915, since, until))
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 04bc1f4a1115..eadbfd2fb9e5 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -3381,25 +3381,6 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 	intel_engine_pm_get(stream->engine);
 	intel_uncore_forcewake_get(stream->uncore, FORCEWAKE_ALL);
 
-	/*
-	 * Wa_16011777198:dg2: GuC resets render as part of the Wa. This causes
-	 * OA to lose the configuration state. Prevent this by overriding GUCRC
-	 * mode.
-	 */
-	if (intel_uc_uses_guc_rc(&gt->uc) &&
-	    (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_C0) ||
-	     IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_B0))) {
-		ret = intel_guc_slpc_override_gucrc_mode(&gt->uc.guc.slpc,
-							 SLPC_GUCRC_MODE_GUCRC_NO_RC6);
-		if (ret) {
-			drm_dbg(&stream->perf->i915->drm,
-				"Unable to override gucrc mode\n");
-			goto err_gucrc;
-		}
-
-		stream->override_gucrc = true;
-	}
-
 	ret = alloc_oa_buffer(stream);
 	if (ret)
 		goto err_oa_buf_alloc;
@@ -3439,7 +3420,6 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
 	if (stream->override_gucrc)
 		intel_guc_slpc_unset_gucrc_mode(&gt->uc.guc.slpc);
 
-err_gucrc:
 	intel_uncore_forcewake_put(stream->uncore, FORCEWAKE_ALL);
 	intel_engine_pm_put(stream->engine);
 
diff --git a/drivers/gpu/drm/i915/intel_clock_gating.c b/drivers/gpu/drm/i915/intel_clock_gating.c
index 81a4d32734e9..c66eb6abd4a2 100644
--- a/drivers/gpu/drm/i915/intel_clock_gating.c
+++ b/drivers/gpu/drm/i915/intel_clock_gating.c
@@ -396,14 +396,6 @@ static void dg2_init_clock_gating(struct drm_i915_private *i915)
 	/* Wa_22010954014:dg2 */
 	intel_uncore_rmw(&i915->uncore, XEHP_CLOCK_GATE_DIS, 0,
 			 SGSI_SIDECLK_DIS);
-
-	/*
-	 * Wa_14010733611:dg2_g10
-	 * Wa_22010146351:dg2_g10
-	 */
-	if (IS_DG2_GRAPHICS_STEP(i915, G10, STEP_A0, STEP_B0))
-		intel_uncore_rmw(&i915->uncore, XEHP_CLOCK_GATE_DIS, 0,
-				 SGR_DIS | SGGI_DIS);
 }
 
 static void pvc_init_clock_gating(struct drm_i915_private *i915)
-- 
2.41.0

[Intel-gfx] [PATCH 4/4] drm/i915: Tidy workaround definitions

[Matt Roper]

Removal of the DG2 pre-production workarounds has left duplicate
condition blocks in a couple places, as well as some inconsistent
platform ordering.  Reshuffle and consolidate some of the workarounds to
reduce the number of condition blocks and to more consistently follow
the "newest platform first" convention.  Code movement only; no
functional change.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 100 +++++++++-----------
 1 file changed, 46 insertions(+), 54 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 7b426f3015b3..69973dc51828 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -2337,6 +2337,19 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 			   true);
 	}
 
+	if (IS_DG2(i915) || IS_ALDERLAKE_P(i915) || IS_ALDERLAKE_S(i915) ||
+	    IS_DG1(i915) || IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915)) {
+		/*
+		 * Wa_1606700617:tgl,dg1,adl-p
+		 * Wa_22010271021:tgl,rkl,dg1,adl-s,adl-p
+		 * Wa_14010826681:tgl,dg1,rkl,adl-p
+		 * Wa_18019627453:dg2
+		 */
+		wa_masked_en(wal,
+			     GEN9_CS_DEBUG_MODE1,
+			     FF_DOP_CLOCK_GATE_DISABLE);
+	}
+
 	if (IS_ALDERLAKE_P(i915) || IS_ALDERLAKE_S(i915) || IS_DG1(i915) ||
 	    IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915)) {
 		/* Wa_1606931601:tgl,rkl,dg1,adl-s,adl-p */
@@ -2350,19 +2363,11 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 		 */
 		wa_write_or(wal, GEN7_FF_THREAD_MODE,
 			    GEN12_FF_TESSELATION_DOP_GATE_DISABLE);
-	}
 
-	if (IS_ALDERLAKE_P(i915) || IS_DG2(i915) || IS_ALDERLAKE_S(i915) ||
-	    IS_DG1(i915) || IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915)) {
-		/*
-		 * Wa_1606700617:tgl,dg1,adl-p
-		 * Wa_22010271021:tgl,rkl,dg1,adl-s,adl-p
-		 * Wa_14010826681:tgl,dg1,rkl,adl-p
-		 * Wa_18019627453:dg2
-		 */
-		wa_masked_en(wal,
-			     GEN9_CS_DEBUG_MODE1,
-			     FF_DOP_CLOCK_GATE_DISABLE);
+		/* Wa_1406941453:tgl,rkl,dg1,adl-s,adl-p */
+		wa_mcr_masked_en(wal,
+				 GEN10_SAMPLER_MODE,
+				 ENABLE_SMALLPL);
 	}
 
 	if (IS_ALDERLAKE_P(i915) || IS_ALDERLAKE_S(i915) ||
@@ -2389,14 +2394,6 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 			     GEN8_RC_SEMA_IDLE_MSG_DISABLE);
 	}
 
-	if (IS_DG1(i915) || IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915) ||
-	    IS_ALDERLAKE_S(i915) || IS_ALDERLAKE_P(i915)) {
-		/* Wa_1406941453:tgl,rkl,dg1,adl-s,adl-p */
-		wa_mcr_masked_en(wal,
-				 GEN10_SAMPLER_MODE,
-				 ENABLE_SMALLPL);
-	}
-
 	if (GRAPHICS_VER(i915) == 11) {
 		/* This is not an Wa. Enable for better image quality */
 		wa_masked_en(wal,
@@ -2877,6 +2874,9 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
 		/* Wa_22013037850 */
 		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0_UDW,
 				DISABLE_128B_EVICTION_COMMAND_UDW);
+
+		/* Wa_18017747507 */
+		wa_masked_en(wal, VFG_PREEMPTION_CHICKEN, POLYGON_TRIFAN_LINELOOP_DISABLE);
 	}
 
 	if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) ||
@@ -2887,11 +2887,20 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
 		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0, DISABLE_D8_D16_COASLESCE);
 	}
 
-	if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) ||
-	    IS_MTL_GRAPHICS_STEP(i915, P, STEP_A0, STEP_B0) ||
-	    IS_DG2(i915)) {
-		/* Wa_18017747507 */
-		wa_masked_en(wal, VFG_PREEMPTION_CHICKEN, POLYGON_TRIFAN_LINELOOP_DISABLE);
+	if (IS_PONTEVECCHIO(i915) || IS_DG2(i915)) {
+		/* Wa_14015227452:dg2,pvc */
+		wa_mcr_masked_en(wal, GEN9_ROW_CHICKEN4, XEHP_DIS_BBL_SYSPIPE);
+
+		/* Wa_16015675438:dg2,pvc */
+		wa_masked_en(wal, FF_SLICE_CS_CHICKEN2, GEN12_PERF_FIX_BALANCING_CFE_DISABLE);
+	}
+
+	if (IS_DG2(i915)) {
+		/*
+		 * Wa_16011620976:dg2_g11
+		 * Wa_22015475538:dg2
+		 */
+		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0_UDW, DIS_CHAIN_2XSIMD8);
 	}
 
 	if (IS_DG2_G11(i915)) {
@@ -2906,6 +2915,18 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
 		/* Wa_22013059131:dg2 */
 		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0,
 				FORCE_1_SUB_MESSAGE_PER_FRAGMENT);
+
+		/*
+		 * Wa_22012654132
+		 *
+		 * Note that register 0xE420 is write-only and cannot be read
+		 * back for verification on DG2 (due to Wa_14012342262), so
+		 * we need to explicitly skip the readback.
+		 */
+		wa_mcr_add(wal, GEN10_CACHE_MODE_SS, 0,
+			   _MASKED_BIT_ENABLE(ENABLE_PREFETCH_INTO_IC),
+			   0 /* write-only, so skip validation */,
+			   true);
 	}
 
 	if (IS_XEHPSDV(i915)) {
@@ -2923,35 +2944,6 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
 		wa_mcr_masked_en(wal, GEN8_HALF_SLICE_CHICKEN1,
 				 GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE);
 	}
-
-	if (IS_DG2(i915) || IS_PONTEVECCHIO(i915)) {
-		/* Wa_14015227452:dg2,pvc */
-		wa_mcr_masked_en(wal, GEN9_ROW_CHICKEN4, XEHP_DIS_BBL_SYSPIPE);
-
-		/* Wa_16015675438:dg2,pvc */
-		wa_masked_en(wal, FF_SLICE_CS_CHICKEN2, GEN12_PERF_FIX_BALANCING_CFE_DISABLE);
-	}
-
-	if (IS_DG2(i915)) {
-		/*
-		 * Wa_16011620976:dg2_g11
-		 * Wa_22015475538:dg2
-		 */
-		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0_UDW, DIS_CHAIN_2XSIMD8);
-	}
-
-	if (IS_DG2_G11(i915))
-		/*
-		 * Wa_22012654132
-		 *
-		 * Note that register 0xE420 is write-only and cannot be read
-		 * back for verification on DG2 (due to Wa_14012342262), so
-		 * we need to explicitly skip the readback.
-		 */
-		wa_mcr_add(wal, GEN10_CACHE_MODE_SS, 0,
-			   _MASKED_BIT_ENABLE(ENABLE_PREFETCH_INTO_IC),
-			   0 /* write-only, so skip validation */,
-			   true);
 }
 
 static void
-- 
2.41.0

Re: [Intel-gfx] [PATCH 3/4] drm/i915/dg2: Drop pre-production GT workarounds

[Dixit, Ashutosh]

On Tue, 15 Aug 2023 10:36:15 -0700, Matt Roper wrote:
>

Hi Matt,

> diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
> index 04bc1f4a1115..eadbfd2fb9e5 100644
> --- a/drivers/gpu/drm/i915/i915_perf.c
> +++ b/drivers/gpu/drm/i915/i915_perf.c
> @@ -3381,25 +3381,6 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
>	intel_engine_pm_get(stream->engine);
>	intel_uncore_forcewake_get(stream->uncore, FORCEWAKE_ALL);
>
> -	/*
> -	 * Wa_16011777198:dg2: GuC resets render as part of the Wa. This causes
> -	 * OA to lose the configuration state. Prevent this by overriding GUCRC
> -	 * mode.
> -	 */
> -	if (intel_uc_uses_guc_rc(&gt->uc) &&
> -	    (IS_DG2_GRAPHICS_STEP(gt->i915, G10, STEP_A0, STEP_C0) ||
> -	     IS_DG2_GRAPHICS_STEP(gt->i915, G11, STEP_A0, STEP_B0))) {
> -		ret = intel_guc_slpc_override_gucrc_mode(&gt->uc.guc.slpc,
> -							 SLPC_GUCRC_MODE_GUCRC_NO_RC6);
> -		if (ret) {
> -			drm_dbg(&stream->perf->i915->drm,
> -				"Unable to override gucrc mode\n");
> -			goto err_gucrc;
> -		}
> -
> -		stream->override_gucrc = true;
> -	}
> -
>	ret = alloc_oa_buffer(stream);
>	if (ret)
>		goto err_oa_buf_alloc;
> @@ -3439,7 +3420,6 @@ static int i915_oa_stream_init(struct i915_perf_stream *stream,
>	if (stream->override_gucrc)
>		intel_guc_slpc_unset_gucrc_mode(&gt->uc.guc.slpc);
>
> -err_gucrc:
>	intel_uncore_forcewake_put(stream->uncore, FORCEWAKE_ALL);
>	intel_engine_pm_put(stream->engine);
>

If we are deleting this, let's basically remove all references to "gucrc"
in this file and includes. So:

* clean up the error path
* Remove stream->override_gucrc
* clean up i915_oa_stream_destroy

Maybe the functions intel_guc_slpc_unset_gucrc_mode and
intel_guc_slpc_override_gucrc_mode can also be removed.

Let's wait to hear from Umesh/Vinay (Cc'd) who implemented this stuff.

Thanks.
--
Ashutosh

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Drop support for pre-production DG2 hardware

[Patchwork]

== Series Details ==

Series: Drop support for pre-production DG2 hardware
URL   : https://patchwork.freedesktop.org/series/122469/
State : warning

== Summary ==

Error: dim checkpatch failed
/home/kbuild/linux/maintainer-tools/dim: line 50: /home/kbuild/.dimrc: No such file or directory

[Intel-gfx] ✗ Fi.CI.SPARSE: warning for Drop support for pre-production DG2 hardware

[Patchwork]

== Series Details ==

Series: Drop support for pre-production DG2 hardware
URL   : https://patchwork.freedesktop.org/series/122469/
State : warning

== Summary ==

Error: dim sparse failed
/home/kbuild2/linux/maintainer-tools/dim: line 50: /home/kbuild2/.dimrc: No such file or directory

[Intel-gfx] ✗ Fi.CI.BAT: failure for Drop support for pre-production DG2 hardware

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 10706 bytes --]

== Series Details ==

Series: Drop support for pre-production DG2 hardware
URL   : https://patchwork.freedesktop.org/series/122469/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_13520 -> Patchwork_122469v1
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_122469v1 absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_122469v1, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/index.html

Participating hosts (39 -> 39)
------------------------------

  Additional (1): bat-rpls-2 
  Missing    (1): fi-snb-2520m 

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in Patchwork_122469v1:

### IGT changes ###

#### Possible regressions ####

  * igt@i915_module_load@load:
    - fi-apl-guc:         [PASS][1] -> [ABORT][2]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13520/fi-apl-guc/igt@i915_module_load@load.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/fi-apl-guc/igt@i915_module_load@load.html

  
Known issues
------------

  Here are the changes found in Patchwork_122469v1 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@debugfs_test@basic-hwmon:
    - bat-rpls-2:         NOTRUN -> [SKIP][3] ([i915#7456])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@debugfs_test@basic-hwmon.html

  * igt@fbdev@info:
    - bat-rpls-2:         NOTRUN -> [SKIP][4] ([i915#1849] / [i915#2582])
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@fbdev@info.html

  * igt@fbdev@read:
    - bat-rpls-2:         NOTRUN -> [SKIP][5] ([i915#2582]) +3 similar issues
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@fbdev@read.html

  * igt@gem_lmem_swapping@verify-random:
    - bat-rpls-2:         NOTRUN -> [SKIP][6] ([i915#4613]) +3 similar issues
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@gem_lmem_swapping@verify-random.html

  * igt@gem_tiled_pread_basic:
    - bat-rpls-2:         NOTRUN -> [SKIP][7] ([i915#3282])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@gem_tiled_pread_basic.html

  * igt@i915_pm_backlight@basic-brightness:
    - bat-rpls-2:         NOTRUN -> [SKIP][8] ([i915#7561])
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@i915_pm_backlight@basic-brightness.html

  * igt@i915_pm_rps@basic-api:
    - bat-rpls-2:         NOTRUN -> [SKIP][9] ([i915#6621])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@i915_pm_rps@basic-api.html

  * igt@i915_selftest@live@gt_mocs:
    - bat-mtlp-8:         [PASS][10] -> [DMESG-FAIL][11] ([i915#7059])
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13520/bat-mtlp-8/igt@i915_selftest@live@gt_mocs.html
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-mtlp-8/igt@i915_selftest@live@gt_mocs.html

  * igt@i915_selftest@live@gt_pm:
    - bat-rpls-2:         NOTRUN -> [DMESG-FAIL][12] ([i915#4258] / [i915#7913])
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@i915_selftest@live@gt_pm.html

  * igt@i915_selftest@live@slpc:
    - bat-rpls-2:         NOTRUN -> [DMESG-WARN][13] ([i915#6367])
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@i915_selftest@live@slpc.html
    - bat-rpls-1:         [PASS][14] -> [DMESG-WARN][15] ([i915#6367])
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13520/bat-rpls-1/igt@i915_selftest@live@slpc.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-1/igt@i915_selftest@live@slpc.html

  * igt@i915_suspend@basic-s3-without-i915:
    - bat-rpls-2:         NOTRUN -> [ABORT][16] ([i915#6687] / [i915#7978] / [i915#8668])
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@i915_suspend@basic-s3-without-i915.html

  * igt@kms_busy@basic:
    - bat-rpls-2:         NOTRUN -> [SKIP][17] ([i915#1845]) +15 similar issues
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@kms_busy@basic.html

  * igt@kms_chamelium_edid@hdmi-edid-read:
    - bat-rpls-2:         NOTRUN -> [SKIP][18] ([i915#7828]) +7 similar issues
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@kms_chamelium_edid@hdmi-edid-read.html

  * igt@kms_flip@basic-flip-vs-dpms:
    - bat-rpls-2:         NOTRUN -> [SKIP][19] ([i915#3637]) +3 similar issues
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@kms_flip@basic-flip-vs-dpms.html

  * igt@kms_force_connector_basic@force-load-detect:
    - bat-rpls-2:         NOTRUN -> [SKIP][20] ([fdo#109285])
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@kms_force_connector_basic@force-load-detect.html

  * igt@kms_frontbuffer_tracking@basic:
    - bat-rpls-2:         NOTRUN -> [SKIP][21] ([i915#1849])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@kms_frontbuffer_tracking@basic.html

  * igt@kms_pipe_crc_basic@read-crc-frame-sequence@pipe-d-edp-1:
    - bat-rplp-1:         [PASS][22] -> [ABORT][23] ([i915#8442] / [i915#8668])
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13520/bat-rplp-1/igt@kms_pipe_crc_basic@read-crc-frame-sequence@pipe-d-edp-1.html
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rplp-1/igt@kms_pipe_crc_basic@read-crc-frame-sequence@pipe-d-edp-1.html

  * igt@kms_psr@sprite_plane_onoff:
    - bat-rpls-2:         NOTRUN -> [SKIP][24] ([i915#1072]) +3 similar issues
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@kms_psr@sprite_plane_onoff.html

  * igt@kms_setmode@basic-clone-single-crtc:
    - bat-rpls-2:         NOTRUN -> [SKIP][25] ([i915#3555])
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@kms_setmode@basic-clone-single-crtc.html

  * igt@prime_vgem@basic-fence-flip:
    - bat-rpls-2:         NOTRUN -> [SKIP][26] ([fdo#109295] / [i915#1845] / [i915#3708])
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@prime_vgem@basic-fence-flip.html

  * igt@prime_vgem@basic-fence-read:
    - bat-rpls-2:         NOTRUN -> [SKIP][27] ([fdo#109295] / [i915#3708]) +2 similar issues
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-rpls-2/igt@prime_vgem@basic-fence-read.html

  
#### Possible fixes ####

  * igt@i915_selftest@live@gt_mocs:
    - bat-mtlp-6:         [DMESG-FAIL][28] ([i915#7059]) -> [PASS][29]
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13520/bat-mtlp-6/igt@i915_selftest@live@gt_mocs.html
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-mtlp-6/igt@i915_selftest@live@gt_mocs.html

  * igt@i915_selftest@live@migrate:
    - bat-mtlp-8:         [DMESG-FAIL][30] ([i915#7699]) -> [PASS][31]
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13520/bat-mtlp-8/igt@i915_selftest@live@migrate.html
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-mtlp-8/igt@i915_selftest@live@migrate.html

  * igt@i915_selftest@live@slpc:
    - bat-mtlp-6:         [DMESG-WARN][32] ([i915#6367]) -> [PASS][33]
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13520/bat-mtlp-6/igt@i915_selftest@live@slpc.html
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-mtlp-6/igt@i915_selftest@live@slpc.html

  
#### Warnings ####

  * igt@i915_module_load@load:
    - bat-adlp-11:        [DMESG-WARN][34] ([i915#4423]) -> [ABORT][35] ([i915#4423])
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13520/bat-adlp-11/igt@i915_module_load@load.html
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/bat-adlp-11/igt@i915_module_load@load.html

  
  [fdo#109285]: https://bugs.freedesktop.org/show_bug.cgi?id=109285
  [fdo#109295]: https://bugs.freedesktop.org/show_bug.cgi?id=109295
  [i915#1072]: https://gitlab.freedesktop.org/drm/intel/issues/1072
  [i915#1845]: https://gitlab.freedesktop.org/drm/intel/issues/1845
  [i915#1849]: https://gitlab.freedesktop.org/drm/intel/issues/1849
  [i915#2582]: https://gitlab.freedesktop.org/drm/intel/issues/2582
  [i915#3282]: https://gitlab.freedesktop.org/drm/intel/issues/3282
  [i915#3555]: https://gitlab.freedesktop.org/drm/intel/issues/3555
  [i915#3637]: https://gitlab.freedesktop.org/drm/intel/issues/3637
  [i915#3708]: https://gitlab.freedesktop.org/drm/intel/issues/3708
  [i915#4258]: https://gitlab.freedesktop.org/drm/intel/issues/4258
  [i915#4423]: https://gitlab.freedesktop.org/drm/intel/issues/4423
  [i915#4613]: https://gitlab.freedesktop.org/drm/intel/issues/4613
  [i915#6367]: https://gitlab.freedesktop.org/drm/intel/issues/6367
  [i915#6621]: https://gitlab.freedesktop.org/drm/intel/issues/6621
  [i915#6687]: https://gitlab.freedesktop.org/drm/intel/issues/6687
  [i915#7059]: https://gitlab.freedesktop.org/drm/intel/issues/7059
  [i915#7456]: https://gitlab.freedesktop.org/drm/intel/issues/7456
  [i915#7561]: https://gitlab.freedesktop.org/drm/intel/issues/7561
  [i915#7699]: https://gitlab.freedesktop.org/drm/intel/issues/7699
  [i915#7828]: https://gitlab.freedesktop.org/drm/intel/issues/7828
  [i915#7913]: https://gitlab.freedesktop.org/drm/intel/issues/7913
  [i915#7978]: https://gitlab.freedesktop.org/drm/intel/issues/7978
  [i915#8442]: https://gitlab.freedesktop.org/drm/intel/issues/8442
  [i915#8668]: https://gitlab.freedesktop.org/drm/intel/issues/8668


Build changes
-------------

  * Linux: CI_DRM_13520 -> Patchwork_122469v1

  CI-20190529: 20190529
  CI_DRM_13520: c0ba192d095f87b77f04e6ae0afcc02f10b7f5e8 @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_7436: 81e08c6d648e949df161a4f39118ed3eb1e354e9 @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_122469v1: c0ba192d095f87b77f04e6ae0afcc02f10b7f5e8 @ git://anongit.freedesktop.org/gfx-ci/linux


### Linux commits

68b8d770ae14 drm/i915: Tidy workaround definitions
a3891d091e18 drm/i915/dg2: Drop pre-production GT workarounds
b4f38cfe3a6a drm/i915/dg2: Drop pre-production display workarounds
0b278661f922 drm/i915/dg2: Recognize pre-production hardware

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_122469v1/index.html

[-- Attachment #2: Type: text/html, Size: 12676 bytes --]

Re: [Intel-gfx] [PATCH 0/4] Drop support for pre-production DG2 hardware

[Jani Nikula]

On Tue, 15 Aug 2023, Matt Roper <matthew.d.roper@intel.com> wrote:
> We generally only keep support for pre-production steppings and
> workarounds around in the driver until the next major platform is
> implemented.  Now that MTL is in good shape in i915 (and subsequent
> platforms like LNL are being implemented solely on the Xe driver) it's
> time to drop the DG2 pre-production hardware support.
>
> DG2 production hardware always has display stepping C0 or later.  On the
> GT side, production hardware starts with C0 (for DG2-G10), B1 (for
> DG2-G11), and A1 (for DG2-G12).  This means we can drop quite a few
> pre-production workarounds, and simplify the handling of several others.

Did not review, but in general

Acked-by: Jani Nikula <jani.nikula@intel.com>


>
>
> Matt Roper (4):
>   drm/i915/dg2: Recognize pre-production hardware
>   drm/i915/dg2: Drop pre-production display workarounds
>   drm/i915/dg2: Drop pre-production GT workarounds
>   drm/i915: Tidy workaround definitions
>
>  drivers/gpu/drm/i915/display/intel_display.c  |   2 +-
>  .../drm/i915/display/skl_universal_plane.c    |   4 -
>  drivers/gpu/drm/i915/gt/intel_lrc.c           |  34 +-
>  drivers/gpu/drm/i915/gt/intel_mocs.c          |  21 +-
>  drivers/gpu/drm/i915/gt/intel_rc6.c           |   6 +-
>  drivers/gpu/drm/i915/gt/intel_workarounds.c   | 301 +++---------------
>  drivers/gpu/drm/i915/gt/uc/intel_guc.c        |  20 +-
>  drivers/gpu/drm/i915/i915_driver.c            |   3 +
>  drivers/gpu/drm/i915/i915_drv.h               |  23 --
>  drivers/gpu/drm/i915/i915_perf.c              |  20 --
>  drivers/gpu/drm/i915/intel_clock_gating.c     |   8 -
>  11 files changed, 66 insertions(+), 376 deletions(-)

-- 
Jani Nikula, Intel Open Source Graphics Center

Re: [Intel-gfx] [PATCH 1/4] drm/i915/dg2: Recognize pre-production hardware

[Matt Atwood]

On Tue, Aug 15, 2023 at 10:36:13AM -0700, Matt Roper wrote:
> The first production SoC steppings for DG2 were C0 (for G10), B1 (for
> G11), and A1 (for G12).  This corresponds to PCI revision IDs 0x8, 0x5,
> and 0x1 respectively.  Add this information to the driver's
> pre-production detection.
> 
Bspec: 44477

> Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_driver.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> index b870c0df081a..0201115746a7 100644
> --- a/drivers/gpu/drm/i915/i915_driver.c
> +++ b/drivers/gpu/drm/i915/i915_driver.c
> @@ -183,6 +183,9 @@ static void intel_detect_preproduction_hw(struct drm_i915_private *dev_priv)
>  	pre |= IS_ICELAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x7;
>  	pre |= IS_TIGERLAKE(dev_priv) && INTEL_REVID(dev_priv) < 0x1;
>  	pre |= IS_DG1(dev_priv) && INTEL_REVID(dev_priv) < 0x1;
> +	pre |= IS_DG2_G10(dev_priv) && INTEL_REVID(dev_priv) < 0x8;
> +	pre |= IS_DG2_G11(dev_priv) && INTEL_REVID(dev_priv) < 0x5;
> +	pre |= IS_DG2_G12(dev_priv) && INTEL_REVID(dev_priv) < 0x1;
>  
>  	if (pre) {
>  		drm_err(&dev_priv->drm, "This is a pre-production stepping. "
> -- 
> 2.41.0
> 

Re: [Intel-gfx] [PATCH 2/4] drm/i915/dg2: Drop pre-production display workarounds

[Matt Atwood]

On Tue, Aug 15, 2023 at 10:36:14AM -0700, Matt Roper wrote:
> All production DG2 cards have display stepping C0 or later.  We can drop
> Wa_14013215631 (only applies to pre-C0) and make Wa_14010547955
> unconditional (applies to everything B0 and beyond).  Also drop the
> now-unused IS_DG2_DISPLAY_STEP macro.
Bspec: 44477, 72197
> 
> Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c       | 2 +-
>  drivers/gpu/drm/i915/display/skl_universal_plane.c | 4 ----
>  drivers/gpu/drm/i915/i915_drv.h                    | 4 ----
>  3 files changed, 1 insertion(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 763ab569d8f3..8c81206ce90d 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -726,7 +726,7 @@ static void icl_set_pipe_chicken(const struct intel_crtc_state *crtc_state)
>  		tmp |= UNDERRUN_RECOVERY_DISABLE_ADLP;
>  
>  	/* Wa_14010547955:dg2 */
> -	if (IS_DG2_DISPLAY_STEP(dev_priv, STEP_B0, STEP_FOREVER))
> +	if (IS_DG2(dev_priv))
>  		tmp |= DG2_RENDER_CCSTAG_4_3_EN;
>  
>  	intel_de_write(dev_priv, PIPE_CHICKEN(pipe), tmp);
> diff --git a/drivers/gpu/drm/i915/display/skl_universal_plane.c b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> index ffc15d278a39..a408ec2d3958 100644
> --- a/drivers/gpu/drm/i915/display/skl_universal_plane.c
> +++ b/drivers/gpu/drm/i915/display/skl_universal_plane.c
> @@ -2203,10 +2203,6 @@ static bool gen12_plane_has_mc_ccs(struct drm_i915_private *i915,
>  	if (IS_ALDERLAKE_P(i915) && IS_DISPLAY_STEP(i915, STEP_A0, STEP_B0))
>  		return false;
>  
> -	/* Wa_14013215631 */
> -	if (IS_DG2_DISPLAY_STEP(i915, STEP_A0, STEP_C0))
> -		return false;
> -
>  	return plane_id < PLANE_SPRITE4;
>  }
>  
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 7a8ce7239bc9..7f8fa0eb9dc6 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -689,10 +689,6 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
>  	(IS_SUBPLATFORM(__i915, INTEL_DG2, INTEL_SUBPLATFORM_##variant) && \
>  	 IS_GRAPHICS_STEP(__i915, since, until))
>  
> -#define IS_DG2_DISPLAY_STEP(__i915, since, until) \
> -	(IS_DG2(__i915) && \
> -	 IS_DISPLAY_STEP(__i915, since, until))
> -
>  #define IS_PVC_BD_STEP(__i915, since, until) \
>  	(IS_PONTEVECCHIO(__i915) && \
>  	 IS_BASEDIE_STEP(__i915, since, until))
> -- 
> 2.41.0
> 

Re: [Intel-gfx] [PATCH 4/4] drm/i915: Tidy workaround definitions

[Matt Atwood]

On Tue, Aug 15, 2023 at 10:36:16AM -0700, Matt Roper wrote:
> Removal of the DG2 pre-production workarounds has left duplicate
> condition blocks in a couple places, as well as some inconsistent
> platform ordering.  Reshuffle and consolidate some of the workarounds to
> reduce the number of condition blocks and to more consistently follow
> the "newest platform first" convention.  Code movement only; no
> functional change.
> 
> Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
> ---
>  drivers/gpu/drm/i915/gt/intel_workarounds.c | 100 +++++++++-----------
>  1 file changed, 46 insertions(+), 54 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index 7b426f3015b3..69973dc51828 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -2337,6 +2337,19 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
>  			   true);
>  	}
>  
> +	if (IS_DG2(i915) || IS_ALDERLAKE_P(i915) || IS_ALDERLAKE_S(i915) ||
> +	    IS_DG1(i915) || IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915)) {
> +		/*
> +		 * Wa_1606700617:tgl,dg1,adl-p
> +		 * Wa_22010271021:tgl,rkl,dg1,adl-s,adl-p
> +		 * Wa_14010826681:tgl,dg1,rkl,adl-p
> +		 * Wa_18019627453:dg2
> +		 */
> +		wa_masked_en(wal,
> +			     GEN9_CS_DEBUG_MODE1,
> +			     FF_DOP_CLOCK_GATE_DISABLE);
> +	}
> +
>  	if (IS_ALDERLAKE_P(i915) || IS_ALDERLAKE_S(i915) || IS_DG1(i915) ||
>  	    IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915)) {
>  		/* Wa_1606931601:tgl,rkl,dg1,adl-s,adl-p */
> @@ -2350,19 +2363,11 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
>  		 */
>  		wa_write_or(wal, GEN7_FF_THREAD_MODE,
>  			    GEN12_FF_TESSELATION_DOP_GATE_DISABLE);
> -	}
>  
> -	if (IS_ALDERLAKE_P(i915) || IS_DG2(i915) || IS_ALDERLAKE_S(i915) ||
> -	    IS_DG1(i915) || IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915)) {
> -		/*
> -		 * Wa_1606700617:tgl,dg1,adl-p
> -		 * Wa_22010271021:tgl,rkl,dg1,adl-s,adl-p
> -		 * Wa_14010826681:tgl,dg1,rkl,adl-p
> -		 * Wa_18019627453:dg2
> -		 */
> -		wa_masked_en(wal,
> -			     GEN9_CS_DEBUG_MODE1,
> -			     FF_DOP_CLOCK_GATE_DISABLE);
> +		/* Wa_1406941453:tgl,rkl,dg1,adl-s,adl-p */
> +		wa_mcr_masked_en(wal,
> +				 GEN10_SAMPLER_MODE,
> +				 ENABLE_SMALLPL);
>  	}
>  
>  	if (IS_ALDERLAKE_P(i915) || IS_ALDERLAKE_S(i915) ||
> @@ -2389,14 +2394,6 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
>  			     GEN8_RC_SEMA_IDLE_MSG_DISABLE);
>  	}
>  
> -	if (IS_DG1(i915) || IS_ROCKETLAKE(i915) || IS_TIGERLAKE(i915) ||
> -	    IS_ALDERLAKE_S(i915) || IS_ALDERLAKE_P(i915)) {
> -		/* Wa_1406941453:tgl,rkl,dg1,adl-s,adl-p */
> -		wa_mcr_masked_en(wal,
> -				 GEN10_SAMPLER_MODE,
> -				 ENABLE_SMALLPL);
> -	}
> -
>  	if (GRAPHICS_VER(i915) == 11) {
>  		/* This is not an Wa. Enable for better image quality */
>  		wa_masked_en(wal,
> @@ -2877,6 +2874,9 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
>  		/* Wa_22013037850 */
>  		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0_UDW,
>  				DISABLE_128B_EVICTION_COMMAND_UDW);
> +
> +		/* Wa_18017747507 */
> +		wa_masked_en(wal, VFG_PREEMPTION_CHICKEN, POLYGON_TRIFAN_LINELOOP_DISABLE);
>  	}
>  
>  	if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) ||
> @@ -2887,11 +2887,20 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
>  		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0, DISABLE_D8_D16_COASLESCE);
>  	}
>  
> -	if (IS_MTL_GRAPHICS_STEP(i915, M, STEP_A0, STEP_B0) ||
> -	    IS_MTL_GRAPHICS_STEP(i915, P, STEP_A0, STEP_B0) ||
> -	    IS_DG2(i915)) {
> -		/* Wa_18017747507 */
> -		wa_masked_en(wal, VFG_PREEMPTION_CHICKEN, POLYGON_TRIFAN_LINELOOP_DISABLE);
> +	if (IS_PONTEVECCHIO(i915) || IS_DG2(i915)) {
> +		/* Wa_14015227452:dg2,pvc */
> +		wa_mcr_masked_en(wal, GEN9_ROW_CHICKEN4, XEHP_DIS_BBL_SYSPIPE);
> +
> +		/* Wa_16015675438:dg2,pvc */
> +		wa_masked_en(wal, FF_SLICE_CS_CHICKEN2, GEN12_PERF_FIX_BALANCING_CFE_DISABLE);
> +	}
> +
> +	if (IS_DG2(i915)) {
> +		/*
> +		 * Wa_16011620976:dg2_g11
> +		 * Wa_22015475538:dg2
> +		 */
> +		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0_UDW, DIS_CHAIN_2XSIMD8);
>  	}
>  
>  	if (IS_DG2_G11(i915)) {
> @@ -2906,6 +2915,18 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
>  		/* Wa_22013059131:dg2 */
>  		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0,
>  				FORCE_1_SUB_MESSAGE_PER_FRAGMENT);
> +
> +		/*
> +		 * Wa_22012654132
> +		 *
> +		 * Note that register 0xE420 is write-only and cannot be read
> +		 * back for verification on DG2 (due to Wa_14012342262), so
> +		 * we need to explicitly skip the readback.
> +		 */
> +		wa_mcr_add(wal, GEN10_CACHE_MODE_SS, 0,
> +			   _MASKED_BIT_ENABLE(ENABLE_PREFETCH_INTO_IC),
> +			   0 /* write-only, so skip validation */,
> +			   true);
>  	}
>  
>  	if (IS_XEHPSDV(i915)) {
> @@ -2923,35 +2944,6 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
>  		wa_mcr_masked_en(wal, GEN8_HALF_SLICE_CHICKEN1,
>  				 GEN7_PSD_SINGLE_PORT_DISPATCH_ENABLE);
>  	}
> -
> -	if (IS_DG2(i915) || IS_PONTEVECCHIO(i915)) {
> -		/* Wa_14015227452:dg2,pvc */
> -		wa_mcr_masked_en(wal, GEN9_ROW_CHICKEN4, XEHP_DIS_BBL_SYSPIPE);
> -
> -		/* Wa_16015675438:dg2,pvc */
> -		wa_masked_en(wal, FF_SLICE_CS_CHICKEN2, GEN12_PERF_FIX_BALANCING_CFE_DISABLE);
> -	}
> -
> -	if (IS_DG2(i915)) {
> -		/*
> -		 * Wa_16011620976:dg2_g11
> -		 * Wa_22015475538:dg2
> -		 */
> -		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0_UDW, DIS_CHAIN_2XSIMD8);
> -	}
> -
> -	if (IS_DG2_G11(i915))
> -		/*
> -		 * Wa_22012654132
> -		 *
> -		 * Note that register 0xE420 is write-only and cannot be read
> -		 * back for verification on DG2 (due to Wa_14012342262), so
> -		 * we need to explicitly skip the readback.
> -		 */
> -		wa_mcr_add(wal, GEN10_CACHE_MODE_SS, 0,
> -			   _MASKED_BIT_ENABLE(ENABLE_PREFETCH_INTO_IC),
> -			   0 /* write-only, so skip validation */,
> -			   true);
>  }
>  
>  static void
> -- 
> 2.41.0
>