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 0F2DECCD183 for ; Mon, 29 Sep 2025 02:56:33 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C01DB10E3A8; Mon, 29 Sep 2025 02:56:32 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="UTgPtfij"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.18]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0C28310E20A for ; Mon, 29 Sep 2025 02:55:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1759114551; x=1790650551; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=8Fk3/TBXrCmqh6wGDLHW2qEx4MudIWUipQU6CnxqXWY=; b=UTgPtfijpYlW4rud26YuYdxuZUQl3cANNHb8B2/PiAaT4D+sRxhrpGoS p1YDk/lm4IxfIfbrgjxlmmhrnQW2vtF0Sd7ZRCuAySdvdybiWzMVBZy6v k2Cjt8SYjR7zrxhK50ajH4utCOdGCz1Q4M6xo5e40GujOW8t2r7+dq4cW 4ufE1gsZGDg/al47tKR68TdkvSR9L3ZBaT5O9562KAaP5EeCpTZ1g2EOM ikyABgOMbLEKFgBFRP8jeXZYMOH0/+XIPRD4EAuiVZXPNTAYwS3ajZaK5 ByMsHrf7cy65RDJ8FYCSdqFf13hOUmRlF5XN6uTqmEieqBEosnPki5MLx A==; X-CSE-ConnectionGUID: YWIoKTEuSPKXpp33CdRITA== X-CSE-MsgGUID: mohxv6J7QnWLVOO1Xc9FBA== X-IronPort-AV: E=McAfee;i="6800,10657,11531"; a="61398540" X-IronPort-AV: E=Sophos;i="6.17,312,1747724400"; d="scan'208";a="61398540" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2025 19:55:51 -0700 X-CSE-ConnectionGUID: upVw7hI5Qs+hwThZItmhJQ== X-CSE-MsgGUID: 1NgjwTP6R8aOXhraSAeyHQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.18,300,1751266800"; d="scan'208";a="182529274" Received: from lstrano-desk.jf.intel.com ([10.54.39.91]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2025 19:55:51 -0700 From: Matthew Brost To: intel-xe@lists.freedesktop.org Subject: [PATCH v3 24/36] drm/xe/vf: Reset TLB invalidations during VF post migration recovery Date: Sun, 28 Sep 2025 19:55:30 -0700 Message-Id: <20250929025542.1486303-25-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250929025542.1486303-1-matthew.brost@intel.com> References: <20250929025542.1486303-1-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 --- 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 37ef1c42bacb..c9d94620d197 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" @@ -1188,6 +1189,7 @@ 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