drm/i915: Drop dead code for pvc

PCI IDs for PVC were never added and platform always marked with
force_probe. Drop what's not used and rename some places as needed.

The registers not used anymore are also removed.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Tvrtko Ursulin <tursulin@ursulin.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20240320060543.4034215-6-lucas.demarchi@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

1 files changed, 2 insertions, 82 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index b686f68d3a5a..88a52c671368 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -258,12 +258,6 @@ wa_write(struct i915_wa_list *wal, i915_reg_t reg, u32 set)
 }
 
 static void
-wa_mcr_write(struct i915_wa_list *wal, i915_mcr_reg_t reg, u32 set)
-{
-	wa_mcr_write_clr_set(wal, reg, ~0, set);
-}
-
-static void
 wa_write_or(struct i915_wa_list *wal, i915_reg_t reg, u32 set)
 {
 	wa_write_clr_set(wal, reg, set, set);
@@ -918,8 +912,6 @@ __intel_engine_init_ctx_wa(struct intel_engine_cs *engine,
 
 	if (IS_GFX_GT_IP_RANGE(engine->gt, IP_VER(12, 70), IP_VER(12, 74)))
 		xelpg_ctx_workarounds_init(engine, wal);
-	else if (IS_PONTEVECCHIO(i915))
-		; /* noop; none at this time */
 	else if (IS_DG2(i915))
 		dg2_ctx_workarounds_init(engine, wal);
 	else if (IS_DG1(i915))
@@ -1375,20 +1367,6 @@ xehp_init_mcr(struct intel_gt *gt, struct i915_wa_list *wal)
 }
 
 static void
-pvc_init_mcr(struct intel_gt *gt, struct i915_wa_list *wal)
-{
-	unsigned int dss;
-
-	/*
-	 * Setup implicit steering for COMPUTE and DSS ranges to the first
-	 * non-fused-off DSS.  All other types of MCR registers will be
-	 * explicitly steered.
-	 */
-	dss = intel_sseu_find_first_xehp_dss(&gt->info.sseu, 0, 0);
-	__add_mcr_wa(gt, wal, dss / GEN_DSS_PER_CSLICE, dss % GEN_DSS_PER_CSLICE);
-}
-
-static void
 icl_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
 {
 	struct drm_i915_private *i915 = gt->i915;
@@ -1557,24 +1535,6 @@ dg2_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
 }
 
 static void
-pvc_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
-{
-	pvc_init_mcr(gt, wal);
-
-	/* Wa_14015795083 */
-	wa_write_clr(wal, GEN7_MISCCPCTL, GEN12_DOP_CLOCK_GATE_RENDER_ENABLE);
-
-	/* Wa_18018781329 */
-	wa_mcr_write_or(wal, RENDER_MOD_CTRL, FORCE_MISS_FTLB);
-	wa_mcr_write_or(wal, COMP_MOD_CTRL, FORCE_MISS_FTLB);
-	wa_mcr_write_or(wal, XEHP_VDBX_MOD_CTRL, FORCE_MISS_FTLB);
-	wa_mcr_write_or(wal, XEHP_VEBX_MOD_CTRL, FORCE_MISS_FTLB);
-
-	/* Wa_16016694945 */
-	wa_mcr_masked_en(wal, XEHPC_LNCFMISCCFGREG0, XEHPC_OVRLSCCC);
-}
-
-static void
 xelpg_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
 {
 	/* Wa_14018575942 / Wa_18018781329 */
@@ -1649,12 +1609,6 @@ static void gt_tuning_settings(struct intel_gt *gt, struct i915_wa_list *wal)
 		wa_mcr_write_or(wal, XEHP_SQCM, EN_32B_ACCESS);
 	}
 
-	if (IS_PONTEVECCHIO(gt->i915)) {
-		wa_mcr_write(wal, XEHPC_L3SCRUB,
-			     SCRUB_CL_DWNGRADE_SHARED | SCRUB_RATE_4B_PER_CLK);
-		wa_mcr_masked_en(wal, XEHPC_LNCFMISCCFGREG0, XEHPC_HOSTCACHEEN);
-	}
-
 	if (IS_DG2(gt->i915)) {
 		wa_mcr_write_or(wal, XEHP_L3SCQREG7, BLEND_FILL_CACHING_OPT_DIS);
 		wa_mcr_write_or(wal, XEHP_SQCM, EN_32B_ACCESS);
@@ -1679,8 +1633,6 @@ gt_init_workarounds(struct intel_gt *gt, struct i915_wa_list *wal)
 
 	if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 74)))
 		xelpg_gt_workarounds_init(gt, wal);
-	else if (IS_PONTEVECCHIO(i915))
-		pvc_gt_workarounds_init(gt, wal);
 	else if (IS_DG2(i915))
 		dg2_gt_workarounds_init(gt, wal);
 	else if (IS_DG1(i915))
@@ -2100,30 +2052,6 @@ static void dg2_whitelist_build(struct intel_engine_cs *engine)
 	}
 }
 
-static void blacklist_trtt(struct intel_engine_cs *engine)
-{
-	struct i915_wa_list *w = &engine->whitelist;
-
-	/*
-	 * Prevent read/write access to [0x4400, 0x4600) which covers
-	 * the TRTT range across all engines. Note that normally userspace
-	 * cannot access the other engines' trtt control, but for simplicity
-	 * we cover the entire range on each engine.
-	 */
-	whitelist_reg_ext(w, _MMIO(0x4400),
-			  RING_FORCE_TO_NONPRIV_DENY |
-			  RING_FORCE_TO_NONPRIV_RANGE_64);
-	whitelist_reg_ext(w, _MMIO(0x4500),
-			  RING_FORCE_TO_NONPRIV_DENY |
-			  RING_FORCE_TO_NONPRIV_RANGE_64);
-}
-
-static void pvc_whitelist_build(struct intel_engine_cs *engine)
-{
-	/* Wa_16014440446:pvc */
-	blacklist_trtt(engine);
-}
-
 static void xelpg_whitelist_build(struct intel_engine_cs *engine)
 {
 	struct i915_wa_list *w = &engine->whitelist;
@@ -2150,8 +2078,6 @@ void intel_engine_init_whitelist(struct intel_engine_cs *engine)
 		; /* none yet */
 	else if (IS_GFX_GT_IP_RANGE(engine->gt, IP_VER(12, 70), IP_VER(12, 74)))
 		xelpg_whitelist_build(engine);
-	else if (IS_PONTEVECCHIO(i915))
-		pvc_whitelist_build(engine);
 	else if (IS_DG2(i915))
 		dg2_whitelist_build(engine);
 	else if (GRAPHICS_VER(i915) == 12)
@@ -2734,10 +2660,7 @@ xcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 static void
 ccs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 {
-	if (IS_PVC_CT_STEP(engine->i915, STEP_A0, STEP_C0)) {
-		/* Wa_14014999345:pvc */
-		wa_mcr_masked_en(wal, GEN10_CACHE_MODE_SS, DISABLE_ECC);
-	}
+	/* boilerplate for any CCS engine workaround */
 }
 
 /*
@@ -2843,21 +2766,18 @@ general_render_compute_wa_init(struct intel_engine_cs *engine, struct i915_wa_li
 
 	if (IS_GFX_GT_IP_STEP(gt, IP_VER(12, 70), STEP_A0, STEP_B0) ||
 	    IS_GFX_GT_IP_STEP(gt, IP_VER(12, 71), STEP_A0, STEP_B0) ||
-	    IS_PONTEVECCHIO(i915) ||
 	    IS_DG2(i915)) {
 		/* Wa_22014226127 */
 		wa_mcr_write_or(wal, LSC_CHICKEN_BIT_0, DISABLE_D8_D16_COASLESCE);
 	}
 
-	if (IS_PONTEVECCHIO(i915) || IS_DG2(i915)) {
+	if (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