From patchwork Fri Feb 24 12:07:38 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: 13151215 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 93123C61DA4 for ; Fri, 24 Feb 2023 12:09:06 +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=8HoXIHZsr/F2PHguGIOpa6CTHLwzZBxU0FQzutmuTTY=; b=AV3ThVw+qYdOfS rbXo8kbKmZJDAHU/awb3Yq/wI30v9UAvlyyWgwBIXoH0hNgPrOfR+COBJ6fNE7WceSOvmHw4QRed9 uBPktcOlNX4Xo2TgvYGme7w+IfH0Cf5CUwuyyQ/yLZlr6+tS8te85LWJH0wKSw0iCmkTfr0OGsYvk w/ooTUYrFl1Y6fh89reEfv3DQj2x6vZkFQ7kGgU6GEWNnK5h2Os4nWs42qDzryZ9iNmIbKr0m6Vrk QUHxTHWnrHVLXKfv+ySgdZoHq+Al3bfoU5eiMu7JwFyBJmcmm/jPpaZtjaKtA89syLZsmxjXkWvAR Asb7s8j8VewWf3ZgoMdg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pVWrw-002Kxl-19; Fri, 24 Feb 2023 12:08:08 +0000 Received: from mail-bn7nam10on2062e.outbound.protection.outlook.com ([2a01:111:f400:7e8a::62e] helo=NAM10-BN7-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pVWri-002Ktm-Ig for linux-arm-kernel@lists.infradead.org; Fri, 24 Feb 2023 12:07:56 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=cXRH1S1o3IGKS/HzDz0vKJZr3hsUDL3GJBz5JjDkvUHxXkZqwIVy57Z8QrHvCv/P8qTkjTF2FIfvNGdZuZ89e0FsnitZttjPtzHMLb84kfzafj7I4brbOfcJ/GvKBOdGWualHNIcaJK+KSvhEmY48rP+q5j3FET4ur2Uw3kmexSwrRiC/bNTF9ns0IyhHKGITguCTrQFlxThdHbscut6u+9bHrxRBJhuFcPvjT+a/iSJ6YAhUvITLcDKCbEJXMEyH7L09CA/PmINqoc8sxJJTtdFQ1H+QCF2uVJBf1hWp47jj09TrbCfYiICcNi/9JS6ZzV0MqROKyFRNn9CrqhLZw== 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=UY8aiAgk5qC6G8hQfDTAfZ1TFI+V5cb0zce0X0eQH6M=; b=axDy2IszDUOThqOdo1S/mfdCceutFIBwvLeWl5yPXmsC1ZBgEJVeYV/CvRD7EDvEf2bSrMzHxy5kCDCGHdI+9kb13fVhGD+FlE8fDb2lgIxJUqrAtR0cPjhcHDaJx0IT4KfHlJVxOvhX5Yneg62goVFmD0PV5s5dSarR99ie/uDeSqipr4apMSG9r1h+4QpwvsUt5sY+eswVRxwPpCF8YPHNDGNKLMmv5XUY8tIwyxmS9Xg+FMXhMONwK0dqoiozWrf/69YNsm9x/Bn2x2A/7z8nz852IpW9Fhs/YseeAjmrsESpnA3wIz+YqmdaPs32SxurylTUyEeXrMyOUEPUCQ== 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=UY8aiAgk5qC6G8hQfDTAfZ1TFI+V5cb0zce0X0eQH6M=; b=VO2AIC2IrK9ZkJGdgikxBR93yFjiQ5wBNlQesH3e5BgBecA9MPg4TD2K5Yn+zstDEa9jzCvJCA6+aQnObokbNxu1YcK0szkWAECZseEEGHcgAypoay7gC3u665fSxUZHiZvZIGMqVO6IzqJLsrnf7QCoIKjrbLjYOjdN0gl88V0= Received: from BLAPR03CA0166.namprd03.prod.outlook.com (2603:10b6:208:32f::18) by PH7PR12MB6694.namprd12.prod.outlook.com (2603:10b6:510:1b1::8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6134.19; Fri, 24 Feb 2023 12:07:49 +0000 Received: from BL02EPF000108E8.namprd05.prod.outlook.com (2603:10b6:208:32f:cafe::12) by BLAPR03CA0166.outlook.office365.com (2603:10b6:208:32f::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6134.24 via Frontend Transport; Fri, 24 Feb 2023 12:07:49 +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 BL02EPF000108E8.mail.protection.outlook.com (10.167.241.201) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6134.16 via Frontend Transport; Fri, 24 Feb 2023 12:07:48 +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; Fri, 24 Feb 2023 06:07:48 -0600 From: Nava kishore Manne To: , , , , , , , , , , , , , , , , Subject: [PATCH v7 2/2] fpga: zynqmp-fpga: Adds status interface Date: Fri, 24 Feb 2023 17:37:38 +0530 Message-ID: <20230224120738.329416-3-nava.kishore.manne@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230224120738.329416-1-nava.kishore.manne@amd.com> References: <20230224120738.329416-1-nava.kishore.manne@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF000108E8:EE_|PH7PR12MB6694:EE_ X-MS-Office365-Filtering-Correlation-Id: eccd1bae-0fca-49a3-016c-08db165fbf4a 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)(346002)(136003)(396003)(39860400002)(376002)(451199018)(36840700001)(40470700004)(46966006)(86362001)(5660300002)(2906002)(7416002)(82740400003)(41300700001)(426003)(81166007)(70206006)(8676002)(70586007)(36860700001)(82310400005)(316002)(36756003)(336012)(966005)(83380400001)(26005)(110136005)(40480700001)(8936002)(356005)(921005)(16526019)(6666004)(1076003)(47076005)(103116003)(2616005)(40460700003)(186003)(478600001)(36900700001)(83996005)(2101003);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Feb 2023 12:07:48.9590 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: eccd1bae-0fca-49a3-016c-08db165fbf4a 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: BL02EPF000108E8.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB6694 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230224_040754_652172_EA0571F8 X-CRM114-Status: GOOD ( 20.78 ) 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 status interface for zynqmp-fpga. It's a read only interface which allows the user to get the Programmable Logic(PL) configuration status. Usage: To read the Programmable Logic(PL) configuration status. cat /sys/bus/platform/drivers/zynqmp_fpga_manager/firmware:zynqmp-firmware:pcap/status Signed-off-by: Nava kishore Manne Acked-by: Xu Yilun --- Changes for v2: - Updated status messages handling logic as suggested by Xu Yilun. Changes for v3: - Updated status interface handling logic (Restrict the status interface to the device-specific instead of handled by the core) as suggested by Xu Yilun. Changes for v4: - Limit the error strings to one word for each as suggested by Xu Yilun Changes for v5: - Added new sysfs-driver-zynqmp-fpga file. Changes for v6: - Updated the sysfs interface to cat /sys/bus/platform/drivers/... as suggested by Xu Yilun. - Exported raw hex value instead of multiple error strings as suggested by Greg. Changes for v7: - Fixed some minor issues as suggested by Xu Yilun. .../ABI/testing/sysfs-driver-zynqmp-fpga | 73 +++++++++++++++++++ drivers/fpga/zynqmp-fpga.c | 21 ++++++ 2 files changed, 94 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-driver-zynqmp-fpga diff --git a/Documentation/ABI/testing/sysfs-driver-zynqmp-fpga b/Documentation/ABI/testing/sysfs-driver-zynqmp-fpga new file mode 100644 index 000000000000..8f93d27b6d91 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-zynqmp-fpga @@ -0,0 +1,73 @@ +What: /sys/bus/platform/drivers/zynqmp_fpga_manager/firmware:zynqmp-firmware:pcap/status +Date: February 2023 +KernelVersion: 6.4 +Contact: Nava kishore Manne +Description: (RO) Read fpga status. + Read returns a hexadecimal value that tells the current status + of the FPGA device. Each bit position in the status value is + described Below(see ug570 chapter 9). + https://docs.xilinx.com/v/u/en-US/ug570-ultrascale-configuration + + ====================== ============================================== + BIT(0) 0: No CRC error + 1: CRC error + + BIT(1) 0: Decryptor security not set + 1: Decryptor security set + + BIT(2) 0: MMCMs/PLLs are not locked + 1: MMCMs/PLLs are locked + + BIT(3) 0: DCI not matched + 1: DCI matched + + BIT(4) 0: Start-up sequence has not finished + 1: Start-up sequence has finished + + BIT(5) 0: All I/Os are placed in High-Z state + 1: All I/Os behave as configured + + BIT(6) 0: Flip-flops and block RAM are write disabled + 1: Flip-flops and block RAM are write enabled + + BIT(7) 0: GHIGH_B_STATUS asserted + 1: GHIGH_B_STATUS deasserted + + BIT(8) to BIT(10) Status of the mode pins + + BIT(11) 0: Initialization has not finished + 1: Initialization finished + + BIT(12) Value on INIT_B_PIN pin + + BIT(13) 0: Signal not released + 1: Signal released + + BIT(14) Value on DONE_PIN pin. + + BIT(15) 0: No IDCODE_ERROR + 1: IDCODE_ERROR + + BIT(16) 0: No SECURITY_ERROR + 1: SECURITY_ERROR + + BIT(17) System Monitor over-temperature if set + + BIT(18) to BIT(20) Start-up state machine (0 to 7) + Phase 0 = 000 + Phase 1 = 001 + Phase 2 = 011 + Phase 3 = 010 + Phase 4 = 110 + Phase 5 = 111 + Phase 6 = 101 + Phase 7 = 100 + + BIT(25) to BIT(26) Indicates the detected bus width + 00 = x1 + 01 = x8 + 10 = x16 + 11 = x32 + ====================== ============================================== + + The other bits are reserved. diff --git a/drivers/fpga/zynqmp-fpga.c b/drivers/fpga/zynqmp-fpga.c index c60f20949c47..f3434e2c487b 100644 --- a/drivers/fpga/zynqmp-fpga.c +++ b/drivers/fpga/zynqmp-fpga.c @@ -77,6 +77,26 @@ static enum fpga_mgr_states zynqmp_fpga_ops_state(struct fpga_manager *mgr) return FPGA_MGR_STATE_UNKNOWN; } +static ssize_t status_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + u32 status; + int ret; + + ret = zynqmp_pm_fpga_get_config_status(&status); + if (ret) + return ret; + + return sysfs_emit(buf, "0x%x\n", status); +} +static DEVICE_ATTR_RO(status); + +static struct attribute *zynqmp_fpga_attrs[] = { + &dev_attr_status.attr, + NULL, +}; +ATTRIBUTE_GROUPS(zynqmp_fpga); + static const struct fpga_manager_ops zynqmp_fpga_ops = { .state = zynqmp_fpga_ops_state, .write_init = zynqmp_fpga_ops_write_init, @@ -113,6 +133,7 @@ static struct platform_driver zynqmp_fpga_driver = { .driver = { .name = "zynqmp_fpga_manager", .of_match_table = of_match_ptr(zynqmp_fpga_of_match), + .dev_groups = zynqmp_fpga_groups, }, };