From patchwork Thu Jun 24 07:04:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Brost X-Patchwork-Id: 12341053 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EF3A2C49EA5 for ; Thu, 24 Jun 2021 06:47:33 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id AAFE0613CC for ; Thu, 24 Jun 2021 06:47:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AAFE0613CC Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D54766E9F6; Thu, 24 Jun 2021 06:47:29 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4C5956E848; Thu, 24 Jun 2021 06:47:27 +0000 (UTC) IronPort-SDR: hbwzRDk9Hgxkdz1INiHg7aj8D8YtW1OXHhaMVXFPRnD1+bWoPEVd4PUCVFAod1PVDbwUYVWF8N 2bgVskLFVmyg== X-IronPort-AV: E=McAfee;i="6200,9189,10024"; a="207346742" X-IronPort-AV: E=Sophos;i="5.83,295,1616482800"; d="scan'208";a="207346742" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jun 2021 23:47:25 -0700 IronPort-SDR: DT2OUYGU8urkNr54zAbh3+hdpTb6N83Xdnlq+5b/aGJow5AdYUHFf8flUQzDUqOg4Sm53EURdb WZWnvtEULfTg== X-IronPort-AV: E=Sophos;i="5.83,295,1616482800"; d="scan'208";a="556390872" Received: from dhiatt-server.jf.intel.com ([10.54.81.3]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jun 2021 23:47:24 -0700 From: Matthew Brost To: , Date: Thu, 24 Jun 2021 00:04:31 -0700 Message-Id: <20210624070516.21893-3-matthew.brost@intel.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20210624070516.21893-1-matthew.brost@intel.com> References: <20210624070516.21893-1-matthew.brost@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 02/47] drm/i915/guc: Improve error message for unsolicited CT response X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Improve the error message when a unsolicited CT response is received by printing fence that couldn't be found, the last fence, and all requests with a response outstanding. Signed-off-by: Matthew Brost Reviewed-by: Michal Wajdeczko --- drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c index a59e239497ee..07f080ddb9ae 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c @@ -730,12 +730,16 @@ static int ct_handle_response(struct intel_guc_ct *ct, struct ct_incoming_msg *r found = true; break; } - spin_unlock_irqrestore(&ct->requests.lock, flags); - if (!found) { CT_ERROR(ct, "Unsolicited response (fence %u)\n", fence); - return -ENOKEY; + CT_ERROR(ct, "Could not find fence=%u, last_fence=%u\n", fence, + ct->requests.last_fence); + list_for_each_entry(req, &ct->requests.pending, link) + CT_ERROR(ct, "request %u awaits response\n", + req->fence); + err = -ENOKEY; } + spin_unlock_irqrestore(&ct->requests.lock, flags); if (unlikely(err)) return err;