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 C85FCCCD194 for ; Wed, 8 Oct 2025 21:45:49 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8AF7F10E8FC; Wed, 8 Oct 2025 21:45:49 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="UXGBMchH"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.16]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1C90C10E88D for ; Wed, 8 Oct 2025 21:45:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1759959941; x=1791495941; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=kiz+jerG8Hx1DiGBkWQWSS6oHpKcTCE/T9d9vU2nJ8M=; b=UXGBMchH7sjTVzKTL0iZVE7VgA4D+wvSyE/QcSqZUqe8m6P+pL9aag7G giND1lWeLQ9sz31vWQ2f4bMZSWKTXCxx7DJcBHfL183AYnnYq+7OwgzhQ F4gwvBVOZpF5T+YKtnXVhEjhEPx2tkqUd1FOmH9zbguU7GmnZAufWWaaR VGEv/VG78lxJnoeB6rM0lNLK6eqm4jXdGmn3/yXY4eHStLWLxRX4UHgVE xxMx8Zsg0BdLbf+Sm51w9FKrstat9CbVHA322fh9d0TKw0c6HwmbiiEDU KyX2CRkL/WrfNbZtBk5ntmasdtT6cyTCV1Z9KjB/aC8W9B8C8dGNnM27J Q==; X-CSE-ConnectionGUID: flEsfhMGTsybBdj+Ai5LIg== X-CSE-MsgGUID: DYvkbpb9T0+sCMNlr8zXWA== X-IronPort-AV: E=McAfee;i="6800,10657,11576"; a="49726852" X-IronPort-AV: E=Sophos;i="6.19,214,1754982000"; d="scan'208";a="49726852" 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 14:45:40 -0700 X-CSE-ConnectionGUID: reMk+8VjTTO2zUoLGH57yw== X-CSE-MsgGUID: az/R4WEbTgCD+m5iO07HHQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,214,1754982000"; d="scan'208";a="217635190" 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 14:45:36 -0700 From: Matthew Brost To: intel-xe@lists.freedesktop.org Subject: [PATCH v10 10/34] drm/xe/vf: Abort H2G sends during VF post-migration recovery Date: Wed, 8 Oct 2025 14:45:08 -0700 Message-Id: <20251008214532.3442967-11-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" While VF post-migration recovery is in progress, abort H2G sends with -ECANCEL. These messages are treated as lost, and TLB invalidation errors are suppressed. During this phase, the H2G channel is down, and VF recovery requires the CT lock to proceed. v3: - Use xe_gt_recovery_inprogress (Michal) Signed-off-by: Matthew Brost Reviewed-by: Michal Wajdeczko --- drivers/gpu/drm/xe/xe_guc_ct.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c index 47079ab9922c..9f0090ae64a6 100644 --- a/drivers/gpu/drm/xe/xe_guc_ct.c +++ b/drivers/gpu/drm/xe/xe_guc_ct.c @@ -851,7 +851,7 @@ static int __guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action, u32 len, u32 g2h_len, u32 num_g2h, struct g2h_fence *g2h_fence) { - struct xe_gt *gt __maybe_unused = ct_to_gt(ct); + struct xe_gt *gt = ct_to_gt(ct); u16 seqno; int ret; @@ -872,7 +872,7 @@ static int __guc_ct_send_locked(struct xe_guc_ct *ct, const u32 *action, goto out; } - if (ct->state == XE_GUC_CT_STATE_STOPPED) { + if (ct->state == XE_GUC_CT_STATE_STOPPED || xe_gt_recovery_pending(gt)) { ret = -ECANCELED; goto out; } -- 2.34.1