From mboxrd@z Thu Jan 1 00:00:00 1970 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 BEEEECCD187 for ; Wed, 8 Oct 2025 21:46:10 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8154510E8A9; Wed, 8 Oct 2025 21:46:10 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Qi/gPhJI"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) by gabe.freedesktop.org (Postfix) with ESMTPS id 55E3910E8E7 for ; Wed, 8 Oct 2025 21:45:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1759959943; x=1791495943; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=8LWKFMg9LfYFmBSq6AT5f/H9MBQ76h+V+cJ51WWXoNI=; b=Qi/gPhJIyXJXd5fwIw6IxsMbDiMVZDyRLzOxVsyWXfqTqV17RCkwLiW5 J1430R12GRyiarlNUWGjJ/1LFPffj54ZQ+BY6bV6DzFoSTMuJGhbWdEsB laEwHfBuvGAxFej5Nqg71wxEtFMYjXiGfQ+eVm5z3bEuv8DF+9mxKPPoN Sb006almwvRSiN7IuPU6/mkC9ZtZ42TLeU42oITgvJSd7jCIKpgdhLvEB O1xT5ubOsp5pr26wo1adtieYqK1Aghmut1izO/gsvt0oTPBz2BeEaxIWu dQ0fGcYC+QF6X5O+vBDHxubPut4Cii4qqhwgd1Zia+1rmeLu2Fhoive66 A==; X-CSE-ConnectionGUID: zYPSINfjSR6M8f9Sul+Iuw== X-CSE-MsgGUID: x6b+ag+mRiGcNz+mm6vVtQ== X-IronPort-AV: E=McAfee;i="6800,10657,11576"; a="49726866" X-IronPort-AV: E=Sophos;i="6.19,214,1754982000"; d="scan'208";a="49726866" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by fmvoesa110.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Oct 2025 14:45:41 -0700 X-CSE-ConnectionGUID: 2I8JYkFKRu21JMuMcbsZTA== X-CSE-MsgGUID: 6+Iaqle/Q1+QJW5/PHd6uQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,214,1754982000"; d="scan'208";a="217635202" Received: from lstrano-desk.jf.intel.com ([10.54.39.91]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Oct 2025 14:45:37 -0700 From: Matthew Brost To: intel-xe@lists.freedesktop.org Subject: [PATCH v10 21/34] drm/xe/vf: Reset TLB invalidations during VF post migration recovery Date: Wed, 8 Oct 2025 14:45:19 -0700 Message-Id: <20251008214532.3442967-22-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251008214532.3442967-1-matthew.brost@intel.com> References: <20251008214532.3442967-1-matthew.brost@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" TLB invalidations requests can be lost during VF post-migration recovery. Since the VF has migrated, these invalidations are no longer needed. Reset the TLB invalidation frontend, which will signal all pending fences. v3: - Move TLB invalidation reset after pausing submission (Tomasz) - Adjust commit message (Michal) Signed-off-by: Matthew Brost Reviewed-by: Tomasz Lis --- drivers/gpu/drm/xe/xe_gt_sriov_vf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_vf.c b/drivers/gpu/drm/xe/xe_gt_sriov_vf.c index e6f6a5c8ef1b..75a20de71d8b 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_vf.c +++ b/drivers/gpu/drm/xe/xe_gt_sriov_vf.c @@ -35,6 +35,7 @@ #include "xe_sriov.h" #include "xe_sriov_vf.h" #include "xe_tile_sriov_vf.h" +#include "xe_tlb_inval.h" #include "xe_uc_fw.h" #include "xe_wopcm.h" @@ -1107,6 +1108,7 @@ static void vf_post_migration_shutdown(struct xe_gt *gt) xe_guc_ct_flush_and_stop(>->uc.guc.ct); xe_guc_submit_pause(>->uc.guc); + xe_tlb_inval_reset(>->tlb_inval); } static size_t post_migration_scratch_size(struct xe_device *xe) -- 2.34.1