From patchwork Fri Jul 28 02:39:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tinghan Shen X-Patchwork-Id: 708116 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 82DA6C04E69 for ; Fri, 28 Jul 2023 02:40:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231546AbjG1CkT (ORCPT ); Thu, 27 Jul 2023 22:40:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36516 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232749AbjG1CkP (ORCPT ); Thu, 27 Jul 2023 22:40:15 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8D69130DA; Thu, 27 Jul 2023 19:40:12 -0700 (PDT) X-UUID: 0e0a7b3c2cf011eeb20a276fd37b9834-20230728 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=1yNt8bGiUZ92UydpSH31hj/BI5ZtnckkCLekgOIDsQA=; b=cncw1ZzU/5yeHNDSritxRvDlwqCKeyRmbzVDlHJUJlmsLw8kNstus4y5irOgd2IcWkuvbwkJAkfesb74GpcrSXxiddYVJrdu1hCfFxbBq46DDLk8yctyJavrMgbHfl1FD2rjJWzQPO3u/aJLRB+IQWdAzYsgx/mjy8df4DA1/yM=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.30, REQID:73e2b40c-880f-4251-8f4e-a5e20876ca76, IP:0, U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:1fcc6f8, CLOUDID:ee026ad2-cd77-4e67-bbfd-aa4eaace762f, B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO, DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: 0e0a7b3c2cf011eeb20a276fd37b9834-20230728 Received: from mtkmbs11n2.mediatek.inc [(172.21.101.187)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 693754692; Fri, 28 Jul 2023 10:40:03 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by mtkmbs13n1.mediatek.inc (172.21.101.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Fri, 28 Jul 2023 10:40:02 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Fri, 28 Jul 2023 10:40:02 +0800 From: Tinghan Shen To: Bjorn Andersson , Mathieu Poirier , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Tinghan Shen CC: , , , , , Subject: [PATCH v16 12/14] remoteproc: mediatek: Report watchdog crash to all cores Date: Fri, 28 Jul 2023 10:39:57 +0800 Message-ID: <20230728023959.12293-13-tinghan.shen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230728023959.12293-1-tinghan.shen@mediatek.com> References: <20230728023959.12293-1-tinghan.shen@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org To ensure consistent behavior, the watchdog timeout handling of the multi-core SCP should reset the whole SCP sub-system when watchdog timeout. Triggering the rproc recovery flow on all instances will ensure proper recovery of the SCP sub-system. Signed-off-by: Tinghan Shen --- drivers/remoteproc/mtk_scp.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c index 28ad5ceff3b5..bf935bb0f529 100644 --- a/drivers/remoteproc/mtk_scp.c +++ b/drivers/remoteproc/mtk_scp.c @@ -68,8 +68,14 @@ EXPORT_SYMBOL_GPL(scp_put); static void scp_wdt_handler(struct mtk_scp *scp, u32 scp_to_host) { + struct mtk_scp_of_cluster *scp_cluster = scp->cluster; + struct mtk_scp *scp_node; + dev_err(scp->dev, "SCP watchdog timeout! 0x%x", scp_to_host); - rproc_report_crash(scp->rproc, RPROC_WATCHDOG); + + /* report watchdog timeout to all cores */ + list_for_each_entry(scp_node, &scp_cluster->mtk_scp_list, elem) + rproc_report_crash(scp_node->rproc, RPROC_WATCHDOG); } static void scp_init_ipi_handler(void *data, unsigned int len, void *priv)