From patchwork Tue Jan 31 09:48:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nava kishore Manne X-Patchwork-Id: 13122853 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 345A9C38142 for ; Tue, 31 Jan 2023 10:32:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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:To:From:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=W/czo/5frIXge3Gdj54JfGgy449qXFDR6JDrcYdJU8g=; b=TXXp1TstItXj1q 2PL1qonms5iilYgHgG5aMnONkGm5Cc6lclVcuc1lBRyUea6cUG1qQnKBh7eQ9jPkcrgY8UQ1AfBOs +rzghXIIbDB2xaA+DFeuq1lJ7ncihhdDx/mD4La2loWDDrlPF0MPyF+Fz9FZ36hY+pFN5iIBPU4AV QRVtZaEY3rfG8VbNk4Lb6sijbxhVYglBdhjfgGdHP5CcFrqHJi/IA8/8+C+p7nfrsBNPAJSCmsbM4 wC+r4otcJXll3A0Y8tu/REpDQpvhSEqXs6dcvDPdNRRgfy37281Vw1F0j7gShYq879V02xWXSORIR kMEQk8B1SHsgW3WKJ2pw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pMnv9-007QVb-9a; Tue, 31 Jan 2023 10:31:23 +0000 Received: from mail-dm6nam10on20624.outbound.protection.outlook.com ([2a01:111:f400:7e88::624] helo=NAM10-DM6-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pMnFY-0078As-Rx for linux-arm-kernel@lists.infradead.org; Tue, 31 Jan 2023 09:48:27 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=mAl/9aEjN5IR+X4V5hBizFHS0iBlbL25K9DCz4o6ob6xSBtUe/+ums6W2o13R71rn84GgejjGV3+3hc4vCToM0nTVnQnsztdFw8/pa5heabaJubCdT1HUQU1l/NfkS1LNbMIEF+y9RkO+7AX45ge/0MQ8jutxlH+8uUJbpjID8oCISv88VoPAS798RWVV/UiDJvhCXd5j+37p+CyjbLtm/UIIt4le9YQmc2W9+9iNbWCOuI4oPj/ZOjBl8MholKfYJ8D3zcB0ahlhK5g4NI+DOiT8MTvMFemfsd6FfuEW0F5bugpFO8NMsZrCcxkrmp2RqEPF60EquB4MieKrFzpBA== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=7/qlEQMlwjjbM8Oyjm6juldL6i0cvXBAjK9LTAujTZs=; b=Vz/s/iVyHomdD8woUby5GfoEVTFYL4i7Fmsx/GBmNJ4UV805rzjdSdPdnHhYH0dqN8sAFd1IXp0CJZGg82P/lN8FzUpI7ZN7mbtmtHg9fsI1Dmi105RSi8GbLD/crOHwTOYI4CVQDnJDHLW8VkmkFpymtHFoSIeEpLicoPWOkLI+K+YW0ktUze4nUEStNaRztLlhP2iMMNG45f91C5W8/+keEcetHR2xP2sF1Cjzjo/3nb3M+up29z43L1hU9vgfRv/3lZu0JrM1VFtUi31d7gs/w7bl7QUfc+dgGyr4c6R3DRvfu022boJTMd4wXPCYuFNUJXC10AWb29M3B3Ropw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=xilinx.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=7/qlEQMlwjjbM8Oyjm6juldL6i0cvXBAjK9LTAujTZs=; b=yHxF4jc5ew97UPsLfac7iv/HYMnq5HgxMn4tfIhL8kyhxD23ZwBUUuGEjV2Dq06ucTeRSzNLTFIv3mMr2Mz+TXX5uoAd7bU1WlrN0C1f/cvMCmZr3iynK98izsGtlp/MJFJUq4G0HCs+e3LUGVczNmpqywTcYFKALf3K4JdvjWI= Received: from MW4PR04CA0165.namprd04.prod.outlook.com (2603:10b6:303:85::20) by PH7PR12MB5620.namprd12.prod.outlook.com (2603:10b6:510:137::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6043.36; Tue, 31 Jan 2023 09:48:18 +0000 Received: from CO1NAM11FT109.eop-nam11.prod.protection.outlook.com (2603:10b6:303:85:cafe::76) by MW4PR04CA0165.outlook.office365.com (2603:10b6:303:85::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6043.38 via Frontend Transport; Tue, 31 Jan 2023 09:48:18 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by CO1NAM11FT109.mail.protection.outlook.com (10.13.174.176) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6043.22 via Frontend Transport; Tue, 31 Jan 2023 09:48:18 +0000 Received: from localhost (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.34; Tue, 31 Jan 2023 03:48:16 -0600 From: Nava kishore Manne To: , , , , , , , , , , , , , , , , , Subject: [PATCH v5 1/2] firmware: xilinx: Add pm api function for PL config reg readback Date: Tue, 31 Jan 2023 15:18:09 +0530 Message-ID: <20230131094810.1945541-2-nava.kishore.manne@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230131094810.1945541-1-nava.kishore.manne@amd.com> References: <20230131094810.1945541-1-nava.kishore.manne@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1NAM11FT109:EE_|PH7PR12MB5620:EE_ X-MS-Office365-Filtering-Correlation-Id: 28ce2347-0cce-4ca1-24a0-08db03704824 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230025)(4636009)(396003)(39860400002)(376002)(136003)(346002)(451199018)(36840700001)(46966006)(40470700004)(83380400001)(7416002)(336012)(47076005)(86362001)(2616005)(82310400005)(82740400003)(356005)(921005)(2906002)(81166007)(26005)(36860700001)(36756003)(1076003)(40460700003)(426003)(186003)(16526019)(103116003)(478600001)(40480700001)(110136005)(8676002)(8936002)(41300700001)(5660300002)(6666004)(70206006)(316002)(70586007)(83996005)(2101003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 Jan 2023 09:48:18.3043 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 28ce2347-0cce-4ca1-24a0-08db03704824 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT109.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB5620 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230131_014824_977390_5675E022 X-CRM114-Status: GOOD ( 16.20 ) 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 Adds PM API for performing Programmable Logic(PL) configuration register readback. It provides an interface to the firmware(pmufw) to readback the FPGA configuration register. Signed-off-by: Nava kishore Manne --- changes for v2: - None. Changes for v3: - Updated API and config reg read-back handling logic - Updated the commit msg to align with the changes. Changes for v4: - Fixed some minor coding issues. No functional changes. - Updated Return value comments as suggested by Xu Yilun. Changes for v5: - Fixed some minor coding issues as suggested by Xu Yilun. No functional changes. drivers/firmware/xilinx/zynqmp.c | 33 ++++++++++++++++++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 11 ++++++++++ 2 files changed, 44 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 129f68d7a6f5..3d8cc6795b43 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -948,6 +948,39 @@ int zynqmp_pm_fpga_get_status(u32 *value) } EXPORT_SYMBOL_GPL(zynqmp_pm_fpga_get_status); +/** + * zynqmp_pm_fpga_get_config_status - Get the FPGA configuration status. + * @value: Buffer to store FPGA configuration status. + * + * This function provides access to the pmufw to get the FPGA configuration + * status + * + * Return: 0 on success, a negative value on error + */ +int zynqmp_pm_fpga_get_config_status(u32 *value) +{ + u32 ret_payload[PAYLOAD_ARG_CNT]; + u32 buf, lower_addr, upper_addr; + int ret; + + if (!value) + return -EINVAL; + + lower_addr = lower_32_bits((u64)&buf); + upper_addr = upper_32_bits((u64)&buf); + + ret = zynqmp_pm_invoke_fn(PM_FPGA_READ, + XILINX_ZYNQMP_PM_FPGA_CONFIG_STAT_OFFSET, + lower_addr, upper_addr, + XILINX_ZYNQMP_PM_FPGA_READ_CONFIG_REG, + ret_payload); + + *value = ret_payload[1]; + + return ret; +} +EXPORT_SYMBOL_GPL(zynqmp_pm_fpga_get_config_status); + /** * zynqmp_pm_pinctrl_request - Request Pin from firmware * @pin: Pin number to request diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index b09f443d3ab9..ce37d55ffa44 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -71,6 +71,10 @@ #define XILINX_ZYNQMP_PM_FPGA_FULL 0x0U #define XILINX_ZYNQMP_PM_FPGA_PARTIAL BIT(0) +/* FPGA Status Reg */ +#define XILINX_ZYNQMP_PM_FPGA_CONFIG_STAT_OFFSET 7U +#define XILINX_ZYNQMP_PM_FPGA_READ_CONFIG_REG 0U + /* * Node IDs for the Error Events. */ @@ -120,6 +124,7 @@ enum pm_api_id { PM_CLOCK_GETRATE = 42, PM_CLOCK_SETPARENT = 43, PM_CLOCK_GETPARENT = 44, + PM_FPGA_READ = 46, PM_SECURE_AES = 47, PM_FEATURE_CHECK = 63, }; @@ -515,6 +520,7 @@ int zynqmp_pm_aes_engine(const u64 address, u32 *out); int zynqmp_pm_sha_hash(const u64 address, const u32 size, const u32 flags); int zynqmp_pm_fpga_load(const u64 address, const u32 size, const u32 flags); int zynqmp_pm_fpga_get_status(u32 *value); +int zynqmp_pm_fpga_get_config_status(u32 *value); int zynqmp_pm_write_ggs(u32 index, u32 value); int zynqmp_pm_read_ggs(u32 index, u32 *value); int zynqmp_pm_write_pggs(u32 index, u32 value); @@ -721,6 +727,11 @@ static inline int zynqmp_pm_fpga_get_status(u32 *value) return -ENODEV; } +static inline int zynqmp_pm_fpga_get_config_status(u32 *value) +{ + return -ENODEV; +} + static inline int zynqmp_pm_write_ggs(u32 index, u32 value) { return -ENODEV;