From patchwork Wed Apr 7 15:30:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Gong X-Patchwork-Id: 12187265 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=-14.8 required=3.0 tests=BAYES_00, DATE_IN_FUTURE_06_12,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 EB5A0C433B4 for ; Wed, 7 Apr 2021 07:19:53 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 ECAA4610E6 for ; Wed, 7 Apr 2021 07:19:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ECAA4610E6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=H8gQWB9lf4kvQqTR1G+HCLAbAaW71WLmGQAQXtBxQzY=; b=UK1ti+FpYZYWy7BOfkqTXc43G zJSPdt3523hWu2vHz/qRhBACRzz6P/yypKyM/WHDZhLf4zh3FsxuLNfgLi10564x8pnL8zLL7iK87 Dq0KHcg76wCjDpXHoqKzvl++htZQ/QcR2xj8JtLfzRyYzVANVpH7GJfAM6jPlX/tScNZMRcaeiQTl RPyXtyPgsC9mHhqYv2InhcBq29EQjZdw2nNbL+VFsWQuQx4FEiljrOZiO2pEx3gtYy2XmozgUC/Cq 5yiD+Vcw2lHKfSv1c9h/cRayqOOeL2kweYi6zw8DIn5d6tCUTbhKX2ShbmTv1rCCDdqkxWymijJ0t W2LOZvzjg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lU2Re-004IMX-Qg; Wed, 07 Apr 2021 07:17:47 +0000 Received: from mail-vi1eur05on2066.outbound.protection.outlook.com ([40.107.21.66] helo=EUR05-VI1-obe.outbound.protection.outlook.com) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lU2Q2-004I7L-7p for linux-arm-kernel@lists.infradead.org; Wed, 07 Apr 2021 07:16:09 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=cl4u3Z/8QrKA9/RE7978pP4X2AaScxB3hFlOBba2tHJsnwQx3fN2cncWNuXOoL9zV6TxcWh0I5uvo9WQ/XE28qhB/KJbTE1Fo45R44SbfOHf/aaZeYcl4uuKdCbhxTV9TwWXlbRkdwQ2Pg8byqcwBC8anGijkC57MUqs2FD3MuQUH51p2NnnX9KX6sy/+w7518dyD8Zo2cjFdeKxj2VU4KFqZSfOaw7DTnQT9OcEp2PFSZxGp4N402Fq/bxZTz5/1wniNXm2QueyXfWRNPzLjZL3iu085ljdiRV4JZFL6tw3XpxpMaQ9bVOQodpdmv7cFNuX1CFGCZKBOIt0Fmv/FA== 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=zIt5LKORsGd+tCRzDis7KbbsWHYFGr5ZTYZd82CoRi4=; b=lEvws2PBKLQC9bFOgAdJP1/kTc2mmWlqtVyr4qoRS1tnz4TuqO0eI4CKM0Ad+XLZaUDuyf8w6Mx8x/AdjLsxdWrkQiPYd/t0zSLozmSmTxbAH9hsHyJRk5OQbLmAnZrL8uQqT6haW0CPwcAVO1N1aZZCXHo1aCdn6bVvAKhSyLEiF9FjNnhgqwHLcayd/gbSXXaMF6A4ujiuJMLb7WIodntMf8+ceQJlqLq+CmkDpGd//rxFUbIWkolMb+QT6fWBgLgn/Kr75DeQMTFjONfDOYXNd4UWXOHKFkExP+FBaNFdprsFgpEEx92AmsiWBDCFTZRiuhlVCxXpZGDCfpMRxA== 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=zIt5LKORsGd+tCRzDis7KbbsWHYFGr5ZTYZd82CoRi4=; b=mZz8lt6JWytxiBxpsQvhZebyblq+eWxdHna0VxAKfK1x8v9sowjUfc7J7WtrQx6wC0cH0/+b1qjPtmdSgJPpt3SL7NJNWxxFPmhvRUT5Uwgy3DlEERv0xRUVDPb9VGFPRX/7BkdWIIje6j35jVrJK/lDahK4oid7JBQV4KxFYZg= Authentication-Results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=nxp.com; Received: from VE1PR04MB6638.eurprd04.prod.outlook.com (2603:10a6:803:119::15) by VE1PR04MB7326.eurprd04.prod.outlook.com (2603:10a6:800:1b0::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4020.17; Wed, 7 Apr 2021 07:16:04 +0000 Received: from VE1PR04MB6638.eurprd04.prod.outlook.com ([fe80::e8e2:7756:13bc:2cb3]) by VE1PR04MB6638.eurprd04.prod.outlook.com ([fe80::e8e2:7756:13bc:2cb3%7]) with mapi id 15.20.3999.032; Wed, 7 Apr 2021 07:16:04 +0000 From: Robin Gong To: vkoul@kernel.org, mark.rutland@arm.com, broonie@kernel.org, robh+dt@kernel.org, catalin.marinas@arm.com, will.deacon@arm.com, shawnguo@kernel.org, festevam@gmail.com, s.hauer@pengutronix.de, martin.fuzzey@flowbird.group, u.kleine-koenig@pengutronix.de, dan.j.williams@intel.com, matthias.schiffer@ew.tq-group.com, frieder.schrempf@kontron.de, m.felsch@pengutronix.de, xiaoning.wang@nxp.com Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de, dmaengine@vger.kernel.org, linux-imx@nxp.com Subject: [PATCH v14 05/12] dmaengine: dma: imx-sdma: add fw_loaded and is_ram_script Date: Wed, 7 Apr 2021 23:30:49 +0800 Message-Id: <1617809456-17693-6-git-send-email-yibin.gong@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1617809456-17693-1-git-send-email-yibin.gong@nxp.com> References: <1617809456-17693-1-git-send-email-yibin.gong@nxp.com> X-Originating-IP: [119.31.174.66] X-ClientProxiedBy: HK0PR01CA0049.apcprd01.prod.exchangelabs.com (2603:1096:203:a6::13) To VE1PR04MB6638.eurprd04.prod.outlook.com (2603:10a6:803:119::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from robin-OptiPlex-790.ap.freescale.net (119.31.174.66) by HK0PR01CA0049.apcprd01.prod.exchangelabs.com (2603:1096:203:a6::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.4020.17 via Frontend Transport; Wed, 7 Apr 2021 07:15:57 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: b6cf7e3f-b1bd-4f5e-2c3b-08d8f99500e7 X-MS-TrafficTypeDiagnostic: VE1PR04MB7326: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7219; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:VE1PR04MB6638.eurprd04.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(376002)(346002)(366004)(396003)(136003)(39860400002)(7416002)(83380400001)(2906002)(66476007)(5660300002)(66946007)(66556008)(6666004)(38350700001)(36756003)(6512007)(16526019)(186003)(2616005)(26005)(6486002)(6636002)(86362001)(921005)(478600001)(8676002)(38100700001)(316002)(4326008)(956004)(8936002)(6506007)(52116002); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: b6cf7e3f-b1bd-4f5e-2c3b-08d8f99500e7 X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6638.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Apr 2021 07:16:04.0394 (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: 8XQHuVWGPkUGtgoGB2A0My5oeWbkOfSPT5U6d7yuIEJHDPdeEVRAi2LdHTqHZlecf8oNZtdWPGW7Nu9xODIXxA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB7326 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210407_081607_473078_D88593FD X-CRM114-Status: GOOD ( 14.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add 'fw_loaded' and 'is_ram_script' to check if the script used by channel is ram script and it's loaded or not, so that could prevent meaningless following malloc dma descriptor and bd allocate in sdma_transfer_init(), otherwise memory may be consumed out potentially without free in case that spi fallback into pio while dma transfer failed by sdma firmware not ready(next ERR009165 patch depends on sdma RAM scripts/firmware). Signed-off-by: Robin Gong Acked-by: Vinod Koul Reviewed-by: Lucas Stach --- drivers/dma/imx-sdma.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 1c636d2..78dcfe2 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -381,6 +381,7 @@ struct sdma_channel { enum dma_status status; struct imx_dma_data data; struct work_struct terminate_worker; + bool is_ram_script; }; #define IMX_DMA_SG_LOOP BIT(0) @@ -444,6 +445,7 @@ struct sdma_engine { struct sdma_buffer_descriptor *bd0; /* clock ratio for AHB:SDMA core. 1:1 is 1, 2:1 is 0*/ bool clk_ratio; + bool fw_loaded; }; static int sdma_config_write(struct dma_chan *chan, @@ -899,6 +901,7 @@ static void sdma_get_pc(struct sdma_channel *sdmac, case IMX_DMATYPE_SSI_DUAL: per_2_emi = sdma->script_addrs->ssish_2_mcu_addr; emi_2_per = sdma->script_addrs->mcu_2_ssish_addr; + sdmac->is_ram_script = true; break; case IMX_DMATYPE_SSI_SP: case IMX_DMATYPE_MMC: @@ -913,6 +916,7 @@ static void sdma_get_pc(struct sdma_channel *sdmac, per_2_emi = sdma->script_addrs->asrc_2_mcu_addr; emi_2_per = sdma->script_addrs->asrc_2_mcu_addr; per_2_per = sdma->script_addrs->per_2_per_addr; + sdmac->is_ram_script = true; break; case IMX_DMATYPE_ASRC_SP: per_2_emi = sdma->script_addrs->shp_2_mcu_addr; @@ -1309,6 +1313,11 @@ static struct sdma_desc *sdma_transfer_init(struct sdma_channel *sdmac, { struct sdma_desc *desc; + if (!sdmac->sdma->fw_loaded && sdmac->is_ram_script) { + dev_warn_once(sdmac->sdma->dev, "sdma firmware not ready!\n"); + goto err_out; + } + desc = kzalloc((sizeof(*desc)), GFP_NOWAIT); if (!desc) goto err_out; @@ -1559,6 +1568,8 @@ static int sdma_config_write(struct dma_chan *chan, { struct sdma_channel *sdmac = to_sdma_chan(chan); + sdmac->is_ram_script = false; + if (direction == DMA_DEV_TO_MEM) { sdmac->per_address = dmaengine_cfg->src_addr; sdmac->watermark_level = dmaengine_cfg->src_maxburst * @@ -1738,6 +1749,8 @@ static void sdma_load_firmware(const struct firmware *fw, void *context) sdma_add_scripts(sdma, addr); + sdma->fw_loaded = true; + dev_info(sdma->dev, "loaded firmware %d.%d\n", header->version_major, header->version_minor);