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 725CDCCD182 for ; Mon, 6 Oct 2025 11:10:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0A37B10E40F; Mon, 6 Oct 2025 11:10:50 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Z5v4vi5h"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id F404910E35D for ; Mon, 6 Oct 2025 11:10:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1759749045; x=1791285045; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=nnz/k82xy5AY1h7EKo5RjCVk4jEE1adrn0Y4JkA8eYY=; b=Z5v4vi5hEeEPUy6pm7IEwNfnLsV5Q2fSsoY4htQx1neJCMeh0iACVEmc IPywwmwCJQWZek2hvsBqJXohq4b6eVcbDsxuncuZ4B/eDrUpnL4sML7iJ TZNPjrWEXRJ3mUsqEaJKg5bX0a4+0wjM86clYtAKZBC2SsNbMEWDg4h7p VykLvTHPdZ13WORXoNA9RyggQiE9JEDYmvoNSLEpBk6sevyVtbRxCMky1 eXKMzkPmSErjb+vzY7QHwqrki8LcQ8XLDbHdkQ6o0xso3aSuAuA1opM/G 9oJv1E5ULU/G4b9AjYIGkqai6DR4dTGMPuRRkwvgK9w2smL9dm2jw5Dcw g==; X-CSE-ConnectionGUID: KrqkvME4SLugvwk6K6mWmw== X-CSE-MsgGUID: kky75s/IT66fvaetHAExlg== X-IronPort-AV: E=McAfee;i="6800,10657,11573"; a="73020394" X-IronPort-AV: E=Sophos;i="6.18,319,1751266800"; d="scan'208";a="73020394" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Oct 2025 04:10:45 -0700 X-CSE-ConnectionGUID: gfrpdy14ToyRCkK6NUZG0w== X-CSE-MsgGUID: MTYwKB7sS7adTI9FcWUmrg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.18,319,1751266800"; d="scan'208";a="180655235" Received: from lstrano-desk.jf.intel.com ([10.54.39.91]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Oct 2025 04:10:44 -0700 From: Matthew Brost To: intel-xe@lists.freedesktop.org Subject: [PATCH v6 18/30] drm/xe/vf: Reset TLB invalidations during VF post migration recovery Date: Mon, 6 Oct 2025 04:10:26 -0700 Message-Id: <20251006111038.2234860-19-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251006111038.2234860-1-matthew.brost@intel.com> References: <20251006111038.2234860-1-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 768ab33d2486..36eedfc3c5eb 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" @@ -1113,6 +1114,7 @@ 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