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 5D030CCD1A3 for ; Wed, 8 Oct 2025 18:05:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 72FB610E8A7; Wed, 8 Oct 2025 18:05:10 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="NgOD1toB"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.21]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8A92210E886 for ; Wed, 8 Oct 2025 18:05:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1759946709; x=1791482709; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=UTBL9UCvFAK7zlQdjFJ9bBEpYUaGHF9jGcunciW1DhI=; b=NgOD1toBCQhpuPaSPMD8952AFOj/zMs2xoKQ7lIVtqpRXvCnxKT8aBaX X8HiyKq+aWOdsU221BxOWlPUvTJjlA10xLO4B+qJ2HZ6DFvcw/qI3uGTD z9T1T5OGfACkHb/qR1nPLrwyjcl7xODUjStXBwXXLmzuzH0vobnzOd1eC jD26WzkWNdJfzE+La0sB0wXQTCqz7Spx1pJNHUK3jisIIF35+q8OLg/e/ iGWS/98GX70FyDUQ1Yz95djFkou0+xbCFdkHe6Z2ytDeOM8InfNBH2wUg ypI4tkak1fgIKAyb5XMZmw8Ow6fUAMnDakQGkBbBa/Lqro9dfZJbDx6mZ A==; X-CSE-ConnectionGUID: j9Abl4bqSoShSnLnFz+fxw== X-CSE-MsgGUID: 3XpxYiUpRriL0RNSi/ysbA== X-IronPort-AV: E=McAfee;i="6800,10657,11531"; a="62067531" X-IronPort-AV: E=Sophos;i="6.17,312,1747724400"; d="scan'208";a="62067531" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Oct 2025 11:05:07 -0700 X-CSE-ConnectionGUID: GPUJwbdxRCSwPNOsFojafg== X-CSE-MsgGUID: HrTvDtHfR9GwgQwJXC2H9w== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,214,1754982000"; d="scan'208";a="217593738" 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 11:05:06 -0700 From: Matthew Brost To: intel-xe@lists.freedesktop.org Subject: [PATCH v9 21/34] drm/xe/vf: Reset TLB invalidations during VF post migration recovery Date: Wed, 8 Oct 2025 11:04:47 -0700 Message-Id: <20251008180500.3261209-22-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251008180500.3261209-1-matthew.brost@intel.com> References: <20251008180500.3261209-1-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 3d072cb3c544..5680b1201eb8 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" @@ -1100,6 +1101,7 @@ 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