From patchwork Thu Apr 20 21:13:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andi Shyti X-Patchwork-Id: 13219187 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B0E72C77B7C for ; Thu, 20 Apr 2023 21:14:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7ECD010E2D3; Thu, 20 Apr 2023 21:14:36 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0CAC110E30E; Thu, 20 Apr 2023 21:14:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1682025274; x=1713561274; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=Mn8sFmDKgquDwSCjAdQ6+Q20oATFs/3HhXWtf83/RHA=; b=iMeaGwN1YRtmML9xxJxfVs19e1sYoWaQclQ4vK+ZDEQFKW5cTdnhaAUA DATFt4gwcrCN9g7x5QcjbnEC08iEDtkzxzz/UsTb3fqqQv2+7Webp4p8F 53lbbflfRgA76uFvY52fHdBXnQEH79339tkf1CxNi9pKrMPXXhWvY8HgU 0mOvodXqeVmMm2eWtvYXweK7xHNRfaDntprrZSlEX+oe3kMZVa/4cFhYL nPZ7vV0pJWjm94eNJgD6p9pIPiSEK6Kq68nNDBJSZHjdNkD9Y665cVjzp KkzIMV5R/BXXAq9TiZtvvvBqL7uLesR29G/6DsJGabbknNvwMkv+V3Eun Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10686"; a="344607471" X-IronPort-AV: E=Sophos;i="5.99,213,1677571200"; d="scan'208";a="344607471" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Apr 2023 14:14:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10686"; a="642281604" X-IronPort-AV: E=Sophos;i="5.99,213,1677571200"; d="scan'208";a="642281604" Received: from ndenisov-mobl2.ger.corp.intel.com (HELO intel.com) ([10.249.35.51]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Apr 2023 14:14:29 -0700 From: Andi Shyti To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Thu, 20 Apr 2023 23:13:52 +0200 Message-Id: <20230420211353.167252-1-andi.shyti@linux.intel.com> X-Mailer: git-send-email 2.40.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH] drm/i915/mtl: Define MOCS and PAT tables for MTL X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andi Shyti , Lucas De Marchi , Andrzej Hajda , Madhumitha Tolakanahalli Pradeep , Matt Roper , Nirmoy Das Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Madhumitha Tolakanahalli Pradeep On MTL, GT can no longer allocate on LLC - only the CPU can. This, along with addition of support for L4 cache calls for a MOCS/PAT table update. Also the PAT index registers are multicasted for primary GT, and there is an address jump from index 7 to 8. This patch makes sure that these registers are programmed in the proper way. BSpec: 44509, 45101, 44235 Cc: Matt Roper Cc: Lucas De Marchi Signed-off-by: Madhumitha Tolakanahalli Pradeep Signed-off-by: Aravind Iddamsetty Signed-off-by: Nirmoy Das Signed-off-by: Fei Yang Reviewed-by: Andrzej Hajda Reviewed-by: Nirmoy Das Reviewed-by: Andi Shyti Signed-off-by: Andi Shyti --- Hi, just extracting this patch from Fei's series. Andi drivers/gpu/drm/i915/gt/intel_gt_regs.h | 6 +- drivers/gpu/drm/i915/gt/intel_gtt.c | 47 ++++++++++++++- drivers/gpu/drm/i915/gt/intel_gtt.h | 20 ++++++- drivers/gpu/drm/i915/gt/intel_mocs.c | 76 +++++++++++++++++++++++-- drivers/gpu/drm/i915/gt/selftest_mocs.c | 2 +- 5 files changed, 143 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h index fd1f9cd35e9d7..e8c3b762a92a3 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h @@ -356,7 +356,11 @@ #define GEN7_TLB_RD_ADDR _MMIO(0x4700) #define GEN12_PAT_INDEX(index) _MMIO(0x4800 + (index) * 4) -#define XEHP_PAT_INDEX(index) MCR_REG(0x4800 + (index) * 4) +#define _PAT_INDEX(index) _PICK_EVEN_2RANGES(index, 8, \ + 0x4800, 0x4804, \ + 0x4848, 0x484c) +#define XEHP_PAT_INDEX(index) MCR_REG(_PAT_INDEX(index)) +#define XELPMP_PAT_INDEX(index) _MMIO(_PAT_INDEX(index)) #define XEHP_TILE0_ADDR_RANGE MCR_REG(0x4900) #define XEHP_TILE_LMEM_RANGE_SHIFT 8 diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c b/drivers/gpu/drm/i915/gt/intel_gtt.c index 4f436ba7a3c83..2f6a9be0ffe61 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.c +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c @@ -468,6 +468,44 @@ void gtt_write_workarounds(struct intel_gt *gt) } } +static void xelpmp_setup_private_ppat(struct intel_uncore *uncore) +{ + intel_uncore_write(uncore, XELPMP_PAT_INDEX(0), + MTL_PPAT_L4_0_WB); + intel_uncore_write(uncore, XELPMP_PAT_INDEX(1), + MTL_PPAT_L4_1_WT); + intel_uncore_write(uncore, XELPMP_PAT_INDEX(2), + MTL_PPAT_L4_3_UC); + intel_uncore_write(uncore, XELPMP_PAT_INDEX(3), + MTL_PPAT_L4_0_WB | MTL_2_COH_1W); + intel_uncore_write(uncore, XELPMP_PAT_INDEX(4), + MTL_PPAT_L4_0_WB | MTL_3_COH_2W); + + /* + * Remaining PAT entries are left at the hardware-default + * fully-cached setting + */ +} + +static void xelpg_setup_private_ppat(struct intel_gt *gt) +{ + intel_gt_mcr_multicast_write(gt, XEHP_PAT_INDEX(0), + MTL_PPAT_L4_0_WB); + intel_gt_mcr_multicast_write(gt, XEHP_PAT_INDEX(1), + MTL_PPAT_L4_1_WT); + intel_gt_mcr_multicast_write(gt, XEHP_PAT_INDEX(2), + MTL_PPAT_L4_3_UC); + intel_gt_mcr_multicast_write(gt, XEHP_PAT_INDEX(3), + MTL_PPAT_L4_0_WB | MTL_2_COH_1W); + intel_gt_mcr_multicast_write(gt, XEHP_PAT_INDEX(4), + MTL_PPAT_L4_0_WB | MTL_3_COH_2W); + + /* + * Remaining PAT entries are left at the hardware-default + * fully-cached setting + */ +} + static void tgl_setup_private_ppat(struct intel_uncore *uncore) { /* TGL doesn't support LLC or AGE settings */ @@ -603,7 +641,14 @@ void setup_private_pat(struct intel_gt *gt) GEM_BUG_ON(GRAPHICS_VER(i915) < 8); - if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 50)) + if (gt->type == GT_MEDIA) { + xelpmp_setup_private_ppat(gt->uncore); + return; + } + + if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70)) + xelpg_setup_private_ppat(gt); + else if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 50)) xehp_setup_private_ppat(gt); else if (GRAPHICS_VER(i915) >= 12) tgl_setup_private_ppat(uncore); diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.h b/drivers/gpu/drm/i915/gt/intel_gtt.h index 69ce55f517f56..854ec09fd5888 100644 --- a/drivers/gpu/drm/i915/gt/intel_gtt.h +++ b/drivers/gpu/drm/i915/gt/intel_gtt.h @@ -88,9 +88,18 @@ typedef u64 gen8_pte_t; #define BYT_PTE_SNOOPED_BY_CPU_CACHES REG_BIT(2) #define BYT_PTE_WRITEABLE REG_BIT(1) +#define MTL_PPGTT_PTE_PAT3 BIT_ULL(62) #define GEN12_PPGTT_PTE_LM BIT_ULL(11) +#define GEN12_PPGTT_PTE_PAT2 BIT_ULL(7) +#define GEN12_PPGTT_PTE_NC BIT_ULL(5) +#define GEN12_PPGTT_PTE_PAT1 BIT_ULL(4) +#define GEN12_PPGTT_PTE_PAT0 BIT_ULL(3) -#define GEN12_GGTT_PTE_LM BIT_ULL(1) +#define GEN12_GGTT_PTE_LM BIT_ULL(1) +#define MTL_GGTT_PTE_PAT0 BIT_ULL(52) +#define MTL_GGTT_PTE_PAT1 BIT_ULL(53) +#define GEN12_GGTT_PTE_ADDR_MASK GENMASK_ULL(45, 12) +#define MTL_GGTT_PTE_PAT_MASK GENMASK_ULL(53, 52) #define GEN12_PDE_64K BIT(6) #define GEN12_PTE_PS64 BIT(8) @@ -147,6 +156,15 @@ typedef u64 gen8_pte_t; #define GEN8_PDE_IPS_64K BIT(11) #define GEN8_PDE_PS_2M BIT(7) +#define MTL_PPAT_L4_CACHE_POLICY_MASK REG_GENMASK(3, 2) +#define MTL_PAT_INDEX_COH_MODE_MASK REG_GENMASK(1, 0) +#define MTL_PPAT_L4_3_UC REG_FIELD_PREP(MTL_PPAT_L4_CACHE_POLICY_MASK, 3) +#define MTL_PPAT_L4_1_WT REG_FIELD_PREP(MTL_PPAT_L4_CACHE_POLICY_MASK, 1) +#define MTL_PPAT_L4_0_WB REG_FIELD_PREP(MTL_PPAT_L4_CACHE_POLICY_MASK, 0) +#define MTL_3_COH_2W REG_FIELD_PREP(MTL_PAT_INDEX_COH_MODE_MASK, 3) +#define MTL_2_COH_1W REG_FIELD_PREP(MTL_PAT_INDEX_COH_MODE_MASK, 2) +#define MTL_0_COH_NON REG_FIELD_PREP(MTL_PAT_INDEX_COH_MODE_MASK, 0) + enum i915_cache_level; struct drm_i915_gem_object; diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.c b/drivers/gpu/drm/i915/gt/intel_mocs.c index 69b489e8dfeda..89570f137b2cf 100644 --- a/drivers/gpu/drm/i915/gt/intel_mocs.c +++ b/drivers/gpu/drm/i915/gt/intel_mocs.c @@ -40,6 +40,10 @@ struct drm_i915_mocs_table { #define LE_COS(value) ((value) << 15) #define LE_SSE(value) ((value) << 17) +/* Defines for the tables (GLOB_MOCS_0 - GLOB_MOCS_16) */ +#define _L4_CACHEABILITY(value) ((value) << 2) +#define IG_PAT(value) ((value) << 8) + /* Defines for the tables (LNCFMOCS0 - LNCFMOCS31) - two entries per word */ #define L3_ESC(value) ((value) << 0) #define L3_SCC(value) ((value) << 1) @@ -50,6 +54,7 @@ struct drm_i915_mocs_table { /* Helper defines */ #define GEN9_NUM_MOCS_ENTRIES 64 /* 63-64 are reserved, but configured. */ #define PVC_NUM_MOCS_ENTRIES 3 +#define MTL_NUM_MOCS_ENTRIES 16 /* (e)LLC caching options */ /* @@ -73,6 +78,12 @@ struct drm_i915_mocs_table { #define L3_2_RESERVED _L3_CACHEABILITY(2) #define L3_3_WB _L3_CACHEABILITY(3) +/* L4 caching options */ +#define L4_0_WB _L4_CACHEABILITY(0) +#define L4_1_WT _L4_CACHEABILITY(1) +#define L4_2_RESERVED _L4_CACHEABILITY(2) +#define L4_3_UC _L4_CACHEABILITY(3) + #define MOCS_ENTRY(__idx, __control_value, __l3cc_value) \ [__idx] = { \ .control_value = __control_value, \ @@ -416,6 +427,57 @@ static const struct drm_i915_mocs_entry pvc_mocs_table[] = { MOCS_ENTRY(2, 0, L3_3_WB), }; +static const struct drm_i915_mocs_entry mtl_mocs_table[] = { + /* Error - Reserved for Non-Use */ + MOCS_ENTRY(0, + IG_PAT(0), + L3_LKUP(1) | L3_3_WB), + /* Cached - L3 + L4 */ + MOCS_ENTRY(1, + IG_PAT(1), + L3_LKUP(1) | L3_3_WB), + /* L4 - GO:L3 */ + MOCS_ENTRY(2, + IG_PAT(1), + L3_LKUP(1) | L3_1_UC), + /* Uncached - GO:L3 */ + MOCS_ENTRY(3, + IG_PAT(1) | L4_3_UC, + L3_LKUP(1) | L3_1_UC), + /* L4 - GO:Mem */ + MOCS_ENTRY(4, + IG_PAT(1), + L3_LKUP(1) | L3_GLBGO(1) | L3_1_UC), + /* Uncached - GO:Mem */ + MOCS_ENTRY(5, + IG_PAT(1) | L4_3_UC, + L3_LKUP(1) | L3_GLBGO(1) | L3_1_UC), + /* L4 - L3:NoLKUP; GO:L3 */ + MOCS_ENTRY(6, + IG_PAT(1), + L3_1_UC), + /* Uncached - L3:NoLKUP; GO:L3 */ + MOCS_ENTRY(7, + IG_PAT(1) | L4_3_UC, + L3_1_UC), + /* L4 - L3:NoLKUP; GO:Mem */ + MOCS_ENTRY(8, + IG_PAT(1), + L3_GLBGO(1) | L3_1_UC), + /* Uncached - L3:NoLKUP; GO:Mem */ + MOCS_ENTRY(9, + IG_PAT(1) | L4_3_UC, + L3_GLBGO(1) | L3_1_UC), + /* Display - L3; L4:WT */ + MOCS_ENTRY(14, + IG_PAT(1) | L4_1_WT, + L3_LKUP(1) | L3_3_WB), + /* CCS - Non-Displayable */ + MOCS_ENTRY(15, + IG_PAT(1), + L3_GLBGO(1) | L3_1_UC), +}; + enum { HAS_GLOBAL_MOCS = BIT(0), HAS_ENGINE_MOCS = BIT(1), @@ -445,7 +507,13 @@ static unsigned int get_mocs_settings(const struct drm_i915_private *i915, memset(table, 0, sizeof(struct drm_i915_mocs_table)); table->unused_entries_index = I915_MOCS_PTE; - if (IS_PONTEVECCHIO(i915)) { + if (IS_METEORLAKE(i915)) { + table->size = ARRAY_SIZE(mtl_mocs_table); + table->table = mtl_mocs_table; + table->n_entries = MTL_NUM_MOCS_ENTRIES; + table->uc_index = 9; + table->unused_entries_index = 1; + } else if (IS_PONTEVECCHIO(i915)) { table->size = ARRAY_SIZE(pvc_mocs_table); table->table = pvc_mocs_table; table->n_entries = PVC_NUM_MOCS_ENTRIES; @@ -646,9 +714,9 @@ void intel_mocs_init_engine(struct intel_engine_cs *engine) init_l3cc_table(engine->gt, &table); } -static u32 global_mocs_offset(void) +static u32 global_mocs_offset(struct intel_gt *gt) { - return i915_mmio_reg_offset(GEN12_GLOBAL_MOCS(0)); + return i915_mmio_reg_offset(GEN12_GLOBAL_MOCS(0)) + gt->uncore->gsi_offset; } void intel_set_mocs_index(struct intel_gt *gt) @@ -671,7 +739,7 @@ void intel_mocs_init(struct intel_gt *gt) */ flags = get_mocs_settings(gt->i915, &table); if (flags & HAS_GLOBAL_MOCS) - __init_mocs_table(gt->uncore, &table, global_mocs_offset()); + __init_mocs_table(gt->uncore, &table, global_mocs_offset(gt)); /* * Initialize the L3CC table as part of mocs initalization to make diff --git a/drivers/gpu/drm/i915/gt/selftest_mocs.c b/drivers/gpu/drm/i915/gt/selftest_mocs.c index ca009a6a13bdb..7307963465148 100644 --- a/drivers/gpu/drm/i915/gt/selftest_mocs.c +++ b/drivers/gpu/drm/i915/gt/selftest_mocs.c @@ -137,7 +137,7 @@ static int read_mocs_table(struct i915_request *rq, return 0; if (HAS_GLOBAL_MOCS_REGISTERS(rq->engine->i915)) - addr = global_mocs_offset(); + addr = global_mocs_offset(rq->engine->gt); else addr = mocs_offset(rq->engine);