From patchwork Thu Aug 1 20:16:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roy Pledge X-Patchwork-Id: 11071319 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1BDC414DB for ; Thu, 1 Aug 2019 20:17:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0C79F2875E for ; Thu, 1 Aug 2019 20:17:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 00D5928767; Thu, 1 Aug 2019 20:17:41 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8A3B92875E for ; Thu, 1 Aug 2019 20:17:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:Reply-To:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:MIME-Version:In-Reply-To: References:Message-ID:Date:Subject:To:From:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=skACsYZWLoxLhmuAhVhfUo1HR0ZjkaDSfNtZXd8ei68=; b=q+SpyKueZ8yJN5 p7BG/++RDKkMROTnfqUpop+mEEDkJ9+eufOD5QGcTa7VWzRNq8lmsqRaqIJSY723zACLHMtEhtdkE sJgh4Ate4nfMtWEi4BzcUVmxeUPHFRVo8dm2XLod9ua7mzlHhyvNkc4/Kdm9S8aA5+sCGjuxgMcjJ qhbz2/fJlp729V3Dl2UGGvQmiX/R19jRXIboYU9VRoNu0PWSeo3AXz+uCM6d7ONtCaFGYd+2yCcm0 9VL+kZFcpeRRXFcK1s4J57it9dYJ0NhAhZ7F2YNyxHlK/nRkUQVQZ5oft7LrYKmw3ONbbGiDlFsPJ vtvAUscaqPPWoVIHOjLg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1htHW9-0005Dk-3U; Thu, 01 Aug 2019 20:17:41 +0000 Received: from mail-eopbgr60075.outbound.protection.outlook.com ([40.107.6.75] helo=EUR04-DB3-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1htHVY-0004EZ-9n for linux-arm-kernel@lists.infradead.org; Thu, 01 Aug 2019 20:17:05 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=frUulIligv6nZenbfWQcxg7/CHJ7b0GztLqPA2z+cKRZRI+CMJ1Zse/Aul4QYQURa1SMClZvnwjqw2COi47+xL1TTPGgJxJjsDqKRbng3khgO8MCNI8iURDjfT1LQqQCnpHKI9pBPuzz3b/f+dA8BhdzEozxKViJe9uhURWwZBCG+nwv6xwv+kF8Ll/yKhjH20JEZ+Z5aplgZbVgRe068MtkmZbgHJeUZXi0yZoXG8xcCFlXuOwQgl99BDAkpwH/ZSVDqwwoelSAvu9B0dl1SFP/uKMNkVvyu9Kkpgo9JUSGKEAYsjB5P2zgpZRUfI5oxkRYeG0zCE66s5UILYEJ6Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=kJWe9mULcORumohzCx6FOo1R+glwoyoOb1sUgUjat7I=; b=KmNQ2sC8R5L7gSgPtMIB5SoF4sQ032AO36LNvzGnH0axRA4a94ne3vzb7gNURPCLvl9LXOXb1XkIgZweDza8SiqvMu2PK1ed6JsH9efauc89ZWmh81YoPopOacLdObPck1388MsftatUVSw7M38hBh2qBBkF2Efi0TV+OALvqGByRPdsuRBbQq/s7X/hKppc8HGKBrmyImJo3xN/cc7tJ9WRM0yytF3FgxzHXPr8EDXxiWkBZSEZUge+02GacD7g74zQntyaneILC238DXpYLkcA3tbIByxb+XqLLuUUZGOTwrbgbqKf0IKeIx1ZMJcgQRkDQUFF2KmLSQI6nd4elA== ARC-Authentication-Results: i=1; mx.microsoft.com 1;spf=pass smtp.mailfrom=nxp.com;dmarc=pass action=none header.from=nxp.com;dkim=pass header.d=nxp.com;arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=kJWe9mULcORumohzCx6FOo1R+glwoyoOb1sUgUjat7I=; b=TfnbM35BTIhW4zvDTZ2zLIenfcLUp40TEJguDDkF/y1vWbw4jmNYfQeo/AfsUFaBQCjtEv5l3LZMWNzcARAOoXbzkpfVUX7mJUYLFy0p4Ps9jHGHJfLV4T5udBYtjWeI7qSilDV49N9bu40QDsARRgmKkJ/mTSvKXQMBbwDjrgQ= Received: from VE1PR04MB6463.eurprd04.prod.outlook.com (20.179.233.20) by VE1PR04MB6656.eurprd04.prod.outlook.com (20.179.235.95) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2115.10; Thu, 1 Aug 2019 20:16:57 +0000 Received: from VE1PR04MB6463.eurprd04.prod.outlook.com ([fe80::8fc:e04c:fbb6:4f1f]) by VE1PR04MB6463.eurprd04.prod.outlook.com ([fe80::8fc:e04c:fbb6:4f1f%7]) with mapi id 15.20.2115.005; Thu, 1 Aug 2019 20:16:57 +0000 From: Roy Pledge To: "linuxppc-dev@lists.ozlabs.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , Leo Li Subject: [PATCH v3 3/7] soc/fsl/qbman: Cleanup QMan queues if device was already initialized Thread-Topic: [PATCH v3 3/7] soc/fsl/qbman: Cleanup QMan queues if device was already initialized Thread-Index: AQHVSKYR640XbJi8UUCXDJusQovyig== Date: Thu, 1 Aug 2019 20:16:57 +0000 Message-ID: <1564690599-29713-4-git-send-email-roy.pledge@nxp.com> References: <1564690599-29713-1-git-send-email-roy.pledge@nxp.com> In-Reply-To: <1564690599-29713-1-git-send-email-roy.pledge@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: SN4PR0501CA0130.namprd05.prod.outlook.com (2603:10b6:803:42::47) To VE1PR04MB6463.eurprd04.prod.outlook.com (2603:10a6:803:11d::20) authentication-results: spf=none (sender IP is ) smtp.mailfrom=roy.pledge@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [72.142.119.78] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 06d50368-623b-40e6-7ba0-08d716bd3400 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(4618075)(2017052603328)(7193020); SRVR:VE1PR04MB6656; x-ms-traffictypediagnostic: VE1PR04MB6656: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:2150; x-forefront-prvs: 01165471DB x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(4636009)(39860400002)(346002)(136003)(376002)(396003)(366004)(199004)(189003)(386003)(6506007)(305945005)(7736002)(71200400001)(71190400001)(68736007)(14454004)(36756003)(54906003)(316002)(110136005)(6116002)(3846002)(486006)(186003)(66066001)(6436002)(256004)(26005)(2201001)(6636002)(3450700001)(44832011)(6486002)(102836004)(2906002)(446003)(476003)(2616005)(50226002)(64756008)(66446008)(66476007)(25786009)(81166006)(66946007)(52116002)(5660300002)(11346002)(76176011)(478600001)(66556008)(8676002)(86362001)(81156014)(8936002)(99286004)(6512007)(4326008)(2501003)(53936002)(43066004); DIR:OUT; SFP:1101; SCL:1; SRVR:VE1PR04MB6656; H:VE1PR04MB6463.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: 1Js9purKEyYN6g/K9/uEslL2xY9icdyrJ0sQGSDr5g5Jiwi+pcfgWEA6waRckXTYsFd020dCjOntzdrV4Kng2Enpg25uN40ee7nzPHA6zqjyJ60fgz7gyd1TW+rqN6JjJCUgWYvzh/xEURNXhR9X3XIO/8LKcWzwuN84MroFinixtEvLtqkivLGRgRco0ttaDg9u2HBPzKblHgLbDMKctyGeBjCMzPmmRjIW99kRm5HpeYqlO8Hgt1Slrs8wt1VqBnfVsQEhi6sNdO4iSgVmZzDF/v+cZYRRXJt7yDPa4HdprQCzQ3+uX9c3mdidKjGKixJCpOZTQFydh8IteN8RRCMJ0NkrhL1nXUWst8ty6QRHcH6X2zH/vF81UnGuaBENWgUhQl2GOXibSY5C9qrXwBQhInpJRE93Ylx39aJ31fE= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 06d50368-623b-40e6-7ba0-08d716bd3400 X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Aug 2019 20:16:57.5270 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: roy.pledge@nxp.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB6656 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190801_131704_347267_CB84AEFD X-CRM114-Status: GOOD ( 15.10 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Roy Pledge Cc: Roy Pledge , Laurentiu Tudor , Madalin-cristian Bucur Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP If the QMan device was previously initialized make sure all the frame queues are out of service once all the portals are probed. This handles the case where the kernel is restarted without the SoC being reset (kexec for example) Signed-off-by: Roy Pledge --- drivers/soc/fsl/qbman/qman.c | 4 ++-- drivers/soc/fsl/qbman/qman_ccsr.c | 13 ++++++++++++- drivers/soc/fsl/qbman/qman_portal.c | 18 +++++++++++++++++- drivers/soc/fsl/qbman/qman_priv.h | 7 +++++++ 4 files changed, 38 insertions(+), 4 deletions(-) diff --git a/drivers/soc/fsl/qbman/qman.c b/drivers/soc/fsl/qbman/qman.c index 636f83f..f10f77d 100644 --- a/drivers/soc/fsl/qbman/qman.c +++ b/drivers/soc/fsl/qbman/qman.c @@ -2581,7 +2581,7 @@ static int _qm_dqrr_consume_and_match(struct qm_portal *p, u32 fqid, int s, #define qm_dqrr_drain_nomatch(p) \ _qm_dqrr_consume_and_match(p, 0, 0, false) -static int qman_shutdown_fq(u32 fqid) +int qman_shutdown_fq(u32 fqid) { struct qman_portal *p; struct device *dev; @@ -2754,7 +2754,7 @@ static int qman_shutdown_fq(u32 fqid) DPAA_ASSERT((mcr->verb & QM_MCR_VERB_MASK) == QM_MCR_VERB_ALTER_OOS); - if (mcr->result) { + if (mcr->result != QM_MCR_RESULT_OK) { dev_err(dev, "OOS fail: FQ 0x%x (0x%x)\n", fqid, mcr->result); ret = -EIO; diff --git a/drivers/soc/fsl/qbman/qman_ccsr.c b/drivers/soc/fsl/qbman/qman_ccsr.c index a3edefa..709661b7b 100644 --- a/drivers/soc/fsl/qbman/qman_ccsr.c +++ b/drivers/soc/fsl/qbman/qman_ccsr.c @@ -492,7 +492,7 @@ RESERVEDMEM_OF_DECLARE(qman_pfdr, "fsl,qman-pfdr", qman_pfdr); #endif -static unsigned int qm_get_fqid_maxcnt(void) +unsigned int qm_get_fqid_maxcnt(void) { return fqd_sz / 64; } @@ -737,6 +737,17 @@ int qman_is_probed(void) } EXPORT_SYMBOL_GPL(qman_is_probed); +int qman_requires_cleanup(void) +{ + return __qman_requires_cleanup; +} + +void qman_done_cleanup(void) +{ + __qman_requires_cleanup = 0; +} + + static int fsl_qman_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; diff --git a/drivers/soc/fsl/qbman/qman_portal.c b/drivers/soc/fsl/qbman/qman_portal.c index 75717bc..153727c 100644 --- a/drivers/soc/fsl/qbman/qman_portal.c +++ b/drivers/soc/fsl/qbman/qman_portal.c @@ -233,7 +233,7 @@ static int qman_portal_probe(struct platform_device *pdev) struct device_node *node = dev->of_node; struct qm_portal_config *pcfg; struct resource *addr_phys[2]; - int irq, cpu, err; + int irq, cpu, err, i; u32 val; err = qman_is_probed(); @@ -328,6 +328,22 @@ static int qman_portal_probe(struct platform_device *pdev) if (!cpu_online(cpu)) qman_offline_cpu(cpu); + if (__qman_portals_probed == 1 && qman_requires_cleanup()) { + /* + * QMan wasn't reset prior to boot (Kexec for example) + * Empty all the frame queues so they are in reset state + */ + for (i = 0; i < qm_get_fqid_maxcnt(); i++) { + err = qman_shutdown_fq(i); + if (err) { + dev_err(dev, "Failed to shutdown frame queue %d\n", + i); + goto err_portal_init; + } + } + qman_done_cleanup(); + } + return 0; err_portal_init: diff --git a/drivers/soc/fsl/qbman/qman_priv.h b/drivers/soc/fsl/qbman/qman_priv.h index 0451571..a8a35fe 100644 --- a/drivers/soc/fsl/qbman/qman_priv.h +++ b/drivers/soc/fsl/qbman/qman_priv.h @@ -272,3 +272,10 @@ extern struct qman_portal *affine_portals[NR_CPUS]; extern struct qman_portal *qman_dma_portal; const struct qm_portal_config *qman_get_qm_portal_config( struct qman_portal *portal); + +unsigned int qm_get_fqid_maxcnt(void); + +int qman_shutdown_fq(u32 fqid); + +int qman_requires_cleanup(void); +void qman_done_cleanup(void);