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 A835DCCD18E for ; Tue, 7 Oct 2025 13:05:18 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 67A5810E68F; Tue, 7 Oct 2025 13:05:17 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Fwa8UlfF"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id D19C310E649 for ; Tue, 7 Oct 2025 13:05:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1759842314; x=1791378314; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=dJP0KZNDVKPsboEEz1IKCzRlCxR9Y4yoVpZhRMjfz8A=; b=Fwa8UlfF737Onac8d494S7XxKj1vJ+3rsMSPkijHW9897blwp/uyngdq 0QJIVumJ+0gh6RgdVIkq3sA+a0AiXnoPJ7XitEN7GUS6PjxRnWPbnuby7 flpTFWKxiQyzbevBOFpAdXvvQU3ajhR+loxQO3Ooa2QObAuGnz45VrG4b JcI04Y3ZIY6bruOG2AaKsJuh82LQJAVsQRMhB0bWRwcv2NNNjfP0v87Eq F06fWbUvH2VJjo7whm+ciIJGKuqcDGGPqg7UdQSiySqJQq3/PnstWR961 kpp37qWOL/Vg5ejhmhNJoYVPvKAXknQZ1kh4SVah9l1lwaegSqsfOkeMe Q==; X-CSE-ConnectionGUID: adcbTFizRwKe5k2Oh5jLcg== X-CSE-MsgGUID: mOhVF8lORs6WSYBDi/WLug== X-IronPort-AV: E=McAfee;i="6800,10657,11575"; a="64639840" X-IronPort-AV: E=Sophos;i="6.18,321,1751266800"; d="scan'208";a="64639840" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Oct 2025 06:05:14 -0700 X-CSE-ConnectionGUID: 4KEp7LQcTnunGl6wi/xXew== X-CSE-MsgGUID: 4F1F/Vj5Tmq0l2zXV7YXjQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.18,321,1751266800"; d="scan'208";a="180576950" Received: from lstrano-desk.jf.intel.com ([10.54.39.91]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Oct 2025 06:05:13 -0700 From: Matthew Brost To: intel-xe@lists.freedesktop.org Subject: [PATCH v8 20/33] drm/xe/vf: Reset TLB invalidations during VF post migration recovery Date: Tue, 7 Oct 2025 06:04:52 -0700 Message-Id: <20251007130505.2694829-21-matthew.brost@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251007130505.2694829-1-matthew.brost@intel.com> References: <20251007130505.2694829-1-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 6856973cab9a..d5819cac1bc9 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" @@ -1102,6 +1103,7 @@ 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