From patchwork Fri Sep 15 21:55:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Harrison X-Patchwork-Id: 13387778 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 04C1ECD37AE for ; Fri, 15 Sep 2023 21:57:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E106810E6A1; Fri, 15 Sep 2023 21:56:52 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id EEA7010E69A; Fri, 15 Sep 2023 21:56:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1694815009; x=1726351009; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VW2JB+KtOULOX6eC0AmCHdWmvMEadYmFHX+zyxtELhM=; b=K4A2q7zMbMNoYuqPy2Z96MSHNlOLPMbI+UcAgl2DTwzmbBdz0rquAndq vbTNnD+GUFwoMWCi9GZD2kwBU8DRb/sgwvHDbADzYVHxV/In+TyoePO0C 2BL6uhMUtAV9eHGIWOVcBCthEVXcFgg2VfpC+8YucRrhkqMCfPB8rZhnM C8H3WBbRh9b3nFtcWtdDrcNC0+Wx1TWuyafRVFh4tCQM7cT/v2OyKJS3g Vox7lyzQGCEtu1amgX0evDiLX1DCEaX3tPhdOCN4qo1VCtaGC2r0uzJo4 H+Fbi3MHY+6HhXIx2/BGCpuLtxLkHzAwL4vGQ+hMgCoTDvYpRRr1cydvA g==; X-IronPort-AV: E=McAfee;i="6600,9927,10834"; a="410297711" X-IronPort-AV: E=Sophos;i="6.02,150,1688454000"; d="scan'208";a="410297711" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Sep 2023 14:56:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10834"; a="918792875" X-IronPort-AV: E=Sophos;i="6.02,150,1688454000"; d="scan'208";a="918792875" Received: from relo-linux-5.jf.intel.com ([10.165.21.152]) by orsmga005.jf.intel.com with ESMTP; 15 Sep 2023 14:56:34 -0700 From: John.C.Harrison@Intel.com To: Intel-GFX@Lists.FreeDesktop.Org Date: Fri, 15 Sep 2023 14:55:37 -0700 Message-ID: <20230915215537.220331-5-John.C.Harrison@Intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230915215537.220331-1-John.C.Harrison@Intel.com> References: <20230915215537.220331-1-John.C.Harrison@Intel.com> MIME-Version: 1.0 Organization: Intel Corporation (UK) Ltd. - Co. Reg. #1134945 - Pipers Way, Swindon SN3 1RJ Subject: [Intel-gfx] [PATCH 4/4] drm/i915/guc: Enable Wa_14019159160 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: DRI-Devel@Lists.FreeDesktop.Org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: John Harrison Use the new w/a KLV support to enable a MTL w/a. Note, this w/a is a super-set of Wa_16019325821, so requires turning that one as well as setting the new flag for Wa_14019159160 itself. Signed-off-by: John Harrison --- drivers/gpu/drm/i915/gt/gen8_engine_cs.c | 3 +++ drivers/gpu/drm/i915/gt/intel_engine_types.h | 1 + drivers/gpu/drm/i915/gt/uc/abi/guc_klvs_abi.h | 7 +++++ drivers/gpu/drm/i915/gt/uc/intel_guc.c | 1 + drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c | 26 ++++++++++++++++++- .../gpu/drm/i915/gt/uc/intel_guc_submission.c | 1 + 6 files changed, 38 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c index 8b494825c55f2..d31c405b095b7 100644 --- a/drivers/gpu/drm/i915/gt/gen8_engine_cs.c +++ b/drivers/gpu/drm/i915/gt/gen8_engine_cs.c @@ -734,6 +734,7 @@ static u32 *gen12_emit_preempt_busywait(struct i915_request *rq, u32 *cs) /* Wa_14014475959:dg2 */ /* Wa_16019325821 */ +/* Wa_14019159160 */ #define HOLD_SWITCHOUT_SEMAPHORE_PPHWSP_OFFSET 0x540 static u32 hold_switchout_semaphore_offset(struct i915_request *rq) { @@ -743,6 +744,7 @@ static u32 hold_switchout_semaphore_offset(struct i915_request *rq) /* Wa_14014475959:dg2 */ /* Wa_16019325821 */ +/* Wa_14019159160 */ static u32 *hold_switchout_emit_wa_busywait(struct i915_request *rq, u32 *cs) { int i; @@ -783,6 +785,7 @@ gen12_emit_fini_breadcrumb_tail(struct i915_request *rq, u32 *cs) /* Wa_14014475959:dg2 */ /* Wa_16019325821 */ + /* Wa_14019159160 */ if (intel_engine_uses_wa_hold_switchout(rq->engine)) cs = hold_switchout_emit_wa_busywait(rq, cs); diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h index 68fe1cef9cd94..9b3051600856e 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_types.h +++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h @@ -684,6 +684,7 @@ intel_engine_has_relative_mmio(const struct intel_engine_cs * const engine) /* Wa_14014475959:dg2 */ /* Wa_16019325821 */ +/* Wa_14019159160 */ static inline bool intel_engine_uses_wa_hold_switchout(struct intel_engine_cs *engine) { diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_klvs_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_klvs_abi.h index 58012edd4eb0e..bebf28e3c4794 100644 --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_klvs_abi.h +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_klvs_abi.h @@ -101,4 +101,11 @@ enum { GUC_CONTEXT_POLICIES_KLV_NUM_IDS = 5, }; +/* + * Workaround keys: + */ +enum { + GUC_WORKAROUND_KLV_SERIALIZED_RA_MODE = 0x9001, +}; + #endif /* _ABI_GUC_KLVS_ABI_H */ diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c index 4001679ba0793..e74590a71d113 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c @@ -295,6 +295,7 @@ static u32 guc_ctl_wa_flags(struct intel_guc *guc) flags |= GUC_WA_HOLD_CCS_SWITCHOUT; /* Wa_16019325821 */ + /* Wa_14019159160 */ if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 71))) flags |= GUC_WA_RCS_CCS_SWITCHOUT; diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c index 792910af3a481..a9fd2e96f27f5 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c @@ -810,6 +810,25 @@ guc_capture_prep_lists(struct intel_guc *guc) return PAGE_ALIGN(total_size); } +/* Wa_14019159160 */ +static u32 guc_waklv_ra_mode(struct intel_guc *guc, u32 offset, u32 remain) +{ + u32 size; + u32 klv_entry[] = { + /* 16:16 key/length */ + FIELD_PREP(GUC_KLV_0_KEY, GUC_WORKAROUND_KLV_SERIALIZED_RA_MODE) | + FIELD_PREP(GUC_KLV_0_LEN, 0), + /* 0 dwords data */ + }; + + size = sizeof(klv_entry); + GEM_BUG_ON(remain < size); + + iosys_map_memcpy_to(&guc->ads_map, offset, klv_entry, size); + + return size; +} + static void guc_waklv_init(struct intel_guc *guc) { struct intel_gt *gt = guc_to_gt(guc); @@ -825,7 +844,12 @@ static void guc_waklv_init(struct intel_guc *guc) offset = guc_ads_waklv_offset(guc); remain = guc_ads_waklv_size(guc); - /* Add workarounds here */ + /* Wa_14019159160 */ + if (IS_GFX_GT_IP_RANGE(gt, IP_VER(12, 70), IP_VER(12, 71))) { + size = guc_waklv_ra_mode(guc, offset, remain); + offset += size; + remain -= size; + } size = guc_ads_waklv_size(guc) - remain; if (!size) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c index ff38a815701ce..c8428e4b03592 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c @@ -4270,6 +4270,7 @@ static void guc_default_vfuncs(struct intel_engine_cs *engine) engine->flags |= I915_ENGINE_USES_WA_HOLD_SWITCHOUT; /* Wa_16019325821 */ + /* Wa_14019159160 */ if (engine->class == COMPUTE_CLASS || engine->class == RENDER_CLASS) if (IS_GFX_GT_IP_RANGE(engine->gt, IP_VER(12, 70), IP_VER(12, 71))) engine->flags |= I915_ENGINE_USES_WA_HOLD_SWITCHOUT;