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 X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 C6BBBC282D8 for ; Wed, 30 Jan 2019 09:58:13 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 9912F2184D for ; Wed, 30 Jan 2019 09:58:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Sn/1n/Ep"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=nxp.com header.i=@nxp.com header.b="qpo20fH5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9912F2184D 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+infradead-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=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=ojkJNyk3XcN/Ibs0P59IYpBHZNNlkQfEYLM/AqOMI8s=; b=Sn/1n/EpQvn5nc 7YbIeEzRMANm/Ys4oP/nXGq9rH3ZvbMkj2a8VVl3gBMOOvfwTKOyhLWoyl4l1WrRGiQvT6tzg3b3d xUWIPfs/caKfohQtoFyky5IeSsJjnYSZYFfhMmmhohsZfkqJotzkXbo1HtbiLF/xHatBdzht6tg62 V3KMv4uI6R4bG3s7xxxDcskH7AXvSdI0F3HfgzSklo2CWnQ/xnQW4Qx2ckNbmScB6NI/oYaeBW/Hw 6doG1H41SllJLt+lDupeXyQN78f3hHJoW3ixYWv4up34CkZgdysOFuAxXsK7KLvHINCjhvKgvjdgx d5QOahWVFGN8MtdHn+CQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gomdF-0007Vn-IN; Wed, 30 Jan 2019 09:58:09 +0000 Received: from mail-eopbgr60048.outbound.protection.outlook.com ([40.107.6.48] helo=EUR04-DB3-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gomdB-0007Tw-VS for linux-arm-kernel@lists.infradead.org; Wed, 30 Jan 2019 09:58:07 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=4wr5A+n/o7vGMqHyokIbIoyn2xvGfaWpvmLwSio6oHM=; b=qpo20fH5zSEIamF8mcfOZA4xZMo3WOPNg324uULiNm9w4iZBQCVKY6/Bs1QZcf+mhyGXB8B0lyfnqjpw6oPTTVEEuvPNCZUAtfZ1MjFlXz5IHGLw1rgsBVlBIpocdpVMI2AdmoNLZirl+LtW6WEAPY0SWsm+KC8yhsSCStcrgTs= Received: from VI1PR0402MB3357.eurprd04.prod.outlook.com (52.134.1.18) by VI1PR0402MB3357.eurprd04.prod.outlook.com (52.134.1.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1580.17; Wed, 30 Jan 2019 09:58:00 +0000 Received: from VI1PR0402MB3357.eurprd04.prod.outlook.com ([fe80::2d83:eb90:f977:f649]) by VI1PR0402MB3357.eurprd04.prod.outlook.com ([fe80::2d83:eb90:f977:f649%3]) with mapi id 15.20.1580.017; Wed, 30 Jan 2019 09:58:00 +0000 From: Daniel Baluta To: "shawnguo@kernel.org" Subject: [PATCH v2] firmware: imx: Add support to start/stop a CPU Thread-Topic: [PATCH v2] firmware: imx: Add support to start/stop a CPU Thread-Index: AQHUuIJIb5ERbmz8Z0ilGZjHtOs21Q== Date: Wed, 30 Jan 2019 09:58:00 +0000 Message-ID: <20190130095749.8952-1-daniel.baluta@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: VI1PR0701CA0052.eurprd07.prod.outlook.com (2603:10a6:800:5f::14) To VI1PR0402MB3357.eurprd04.prod.outlook.com (2603:10a6:803:2::18) authentication-results: spf=none (sender IP is ) smtp.mailfrom=daniel.baluta@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.17.1 x-originating-ip: [95.76.156.53] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; VI1PR0402MB3357; 6:S2y0u4IQCsiKMs+mOIuzdREqEXAPCIuUfNwMAnkECriu5v46X1FmmTlQoahEPYC8D4DuLZEYE5tnV+dm2v2fyQM78314Y2c39zRvJBArnyXNouB9Rl++Q/pgYoCE++rJMYsObOODYlclNCvKndQsWu7fVHW/xq2pYQ5cpH47UkCWSMCb8i6Eu9kxSvdZhihrXJguRtQoJ2iDOhs9tQ2Ug2wAUesfO0hpkPQWgk6DBxT1ovM9Wbyb+5JbvdcyJtoREg/QZkxEF7EwS56pdSdMgNFp+5VJGPirj78rXaIoWOGixHFhBlMiXp07WdBfmamFy/tc4qwd2KkKBRNIORiSmr5JFhBLpa5/FXgnY6iYt8WDQwxVWcgISDLAkITsRdf0RUXTsN3qzOrJ6HkXf+6oSu8gwZE9QnxN71Xm0S+RGYjsSYAsX4uYLdaOG/LdEk1dpEo+TazB5bL/lRqEUKD/ng==; 5:X0aYXlcNqC8c5/UB7/Q5fnGPiCpEqnh7QZefRvEaONZrU0abhBgEhV8ql5QsIPffJZy1syLRSF4DDVSTLX6h5GfgnQ6R6pYn2zMwfWq7lX7xHpl8UXlZZ3co0ROXg8gFCt4weU/YPyGs1KfKYre9cMfsLYX2Z4B1flqaU4ruDLc2tTHrnP6dBSUP78U27/1kwAhDfli4R/6O/V4aa1CPkA==; 7:OWF/tlMS3EaWzUx4gWixhdv6/0IB0kIDCg0oM2pugB3N9uuQo3SBn/Coe5lqllfRDtkISlQIhZEFtNakZ9SgMLZDVnYtD2q6YHTFmntyLpliM1NLAo+98aHfANCZawrhmt+fZ3OueGwVOScgrqQPCw== x-ms-office365-filtering-correlation-id: 71d2e86c-37eb-48c8-88b8-08d686996ac6 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600110)(711020)(4605077)(4618075)(2017052603328)(7153060)(7193020); SRVR:VI1PR0402MB3357; x-ms-traffictypediagnostic: VI1PR0402MB3357: x-microsoft-antispam-prvs: x-forefront-prvs: 0933E9FD8D x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(39860400002)(376002)(396003)(346002)(136003)(366004)(199004)(189003)(97736004)(71200400001)(71190400001)(66066001)(99286004)(52116002)(2501003)(6116002)(3846002)(86362001)(1076003)(54906003)(6486002)(6436002)(36756003)(316002)(106356001)(4326008)(2906002)(53936002)(39060400002)(2351001)(105586002)(6916009)(102836004)(25786009)(6506007)(6512007)(186003)(386003)(26005)(14454004)(1730700003)(81156014)(8676002)(81166006)(68736007)(5640700003)(7736002)(305945005)(8936002)(2616005)(44832011)(476003)(478600001)(486006)(256004)(50226002); DIR:OUT; SFP:1101; SCL:1; SRVR:VI1PR0402MB3357; H:VI1PR0402MB3357.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: ojixJACOvcmOE9BtTCVEhe9Tiix1bPiqqVwPl09A5H4qQWj9odbDS604zB9d+6/SAeQZG1KeThkC+nFsH+W48TkrtrngK990ksdKjHJSjGH7o50mTNFlJ03Tvl62fNPn56aWKeq7IQ7LqTx8BdCp8LlYO4aRkiRsxj1fqKNxzpovHiz8nO6lnmK/RR2yL5AE9f9B5XDFZavDbeZ6OiBp0tSCboUfOn4Bgq3Lkhi9vzNzoTowwUpVMbtyiT4asXYuXsZTpmz5v/kC77p9vxkJjNMi2rwarc8ZxJasyE9wg8c9ct1Mgt0XAK+k6pij4qmeKNrcqgtrYTd+SsPA/fFY+AwWSRh6Aqq3ZPldfJeajSO5tm++uWz2cz1fBaxbwd+ehm/oPCspd6VcsP2xatRz5TQROGzYB0ZbTTMyHy90bZ8= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 71d2e86c-37eb-48c8-88b8-08d686996ac6 X-MS-Exchange-CrossTenant-originalarrivaltime: 30 Jan 2019 09:57:59.3173 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0402MB3357 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190130_015806_082664_AFED874C X-CRM114-Status: GOOD ( 11.15 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Aisheng Dong , "daniel.baluta@gmail.com" , Daniel Baluta , "s.hauer@pengutronix.de" , "linux-kernel@vger.kernel.org" , dl-linux-imx , "kernel@pengutronix.de" , "festevam@gmail.com" , "S.j. Wang" , "linux-arm-kernel@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org This is done via RPC call to SCU. Signed-off-by: Daniel Baluta --- Changes since v1: - remove unused variable ret - add documentation for imx_sc_pm_cpu_start function drivers/firmware/imx/misc.c | 38 +++++++++++++++++++++++++++ include/linux/firmware/imx/svc/misc.h | 3 +++ 2 files changed, 41 insertions(+) diff --git a/drivers/firmware/imx/misc.c b/drivers/firmware/imx/misc.c index 97f5424dbac9..f511d6f624fd 100644 --- a/drivers/firmware/imx/misc.c +++ b/drivers/firmware/imx/misc.c @@ -18,6 +18,14 @@ struct imx_sc_msg_req_misc_set_ctrl { u16 resource; } __packed; +struct imx_sc_msg_req_cpu_start { + struct imx_sc_rpc_msg hdr; + u32 address_hi; + u32 address_lo; + u16 resource; + u8 enable; +} __packed; + struct imx_sc_msg_req_misc_get_ctrl { struct imx_sc_rpc_msg hdr; u32 ctrl; @@ -97,3 +105,33 @@ int imx_sc_misc_get_control(struct imx_sc_ipc *ipc, u32 resource, return 0; } EXPORT_SYMBOL(imx_sc_misc_get_control); + +/* + * This function starts/stops a CPU identified by @resource + * + * @param[in] ipc IPC handle + * @param[in] resource resource the control is associated with + * @param[in] enable true for start, false for stop + * @param[out] address initial instruction address to be executed + * + * @return Returns 0 for success and < 0 for errors. + */ +int imx_sc_pm_cpu_start(struct imx_sc_ipc *ipc, u32 resource, + bool enable, u64 address) +{ + struct imx_sc_msg_req_cpu_start msg; + struct imx_sc_rpc_msg *hdr = &msg.hdr; + + hdr->ver = IMX_SC_RPC_VERSION; + hdr->svc = (uint8_t)IMX_SC_RPC_SVC_PM; + hdr->func = (uint8_t)IMX_SC_PM_FUNC_CPU_START; + hdr->size = 4; + + msg.address_hi = address >> 32; + msg.address_lo = address; + msg.resource = resource; + msg.enable = enable; + + return imx_scu_call_rpc(ipc, &msg, false); +} +EXPORT_SYMBOL(imx_sc_pm_cpu_start); diff --git a/include/linux/firmware/imx/svc/misc.h b/include/linux/firmware/imx/svc/misc.h index e21c49aba92f..c03bf2a23add 100644 --- a/include/linux/firmware/imx/svc/misc.h +++ b/include/linux/firmware/imx/svc/misc.h @@ -52,4 +52,7 @@ int imx_sc_misc_set_control(struct imx_sc_ipc *ipc, u32 resource, int imx_sc_misc_get_control(struct imx_sc_ipc *ipc, u32 resource, u8 ctrl, u32 *val); +int imx_sc_pm_cpu_start(struct imx_sc_ipc *ipc, u32 resource, + bool enable, u64 address); + #endif /* _SC_MISC_API_H */ -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel