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Thu, 9 Nov 2023 01:00:48 -0600 From: Jay Buddhabhatti To: , , , , , , , , , , , CC: , , Jay Buddhabhatti Subject: [PATCH v4 4/5] drivers: soc: xilinx: Fix error message on SGI registration failure Date: Wed, 8 Nov 2023 23:00:20 -0800 Message-ID: <20231109070021.16291-5-jay.buddhabhatti@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20231109070021.16291-1-jay.buddhabhatti@amd.com> References: <20231109070021.16291-1-jay.buddhabhatti@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000971E5:EE_|DS0PR12MB8246:EE_ X-MS-Office365-Filtering-Correlation-Id: e4c77f09-82a7-4e55-18f0-08dbe0f19cda 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:(13230031)(4636009)(376002)(396003)(136003)(346002)(39860400002)(230922051799003)(64100799003)(451199024)(186009)(82310400011)(1800799009)(46966006)(36840700001)(40470700004)(40460700003)(40480700001)(478600001)(921008)(82740400003)(47076005)(36756003)(36860700001)(81166007)(356005)(83380400001)(86362001)(2616005)(110136005)(54906003)(1076003)(2906002)(41300700001)(70206006)(26005)(70586007)(44832011)(15650500001)(336012)(6666004)(5660300002)(6636002)(8676002)(316002)(4326008)(8936002)(426003)(83996005)(2101003)(36900700001);DIR:OUT;SFP:1101; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Failure to register SGI for firmware event notification is non-fatal error when feature is not supported by other modules such as Xen and TF-A. Add _info level log message for such special case. Also add XST_PM_INVALID_VERSION error code and map it to -EOPNOSUPP Linux kernel error code. If feature is not supported or EEMI API version is mismatch, firmware can return XST_PM_INVALID_VERSION = 4 or XST_PM_NO_FEATURE = 19 error code. Co-developed-by: Tanmay Shah Signed-off-by: Tanmay Shah Signed-off-by: Jay Buddhabhatti --- drivers/firmware/xilinx/zynqmp.c | 4 +++- drivers/soc/xilinx/xlnx_event_manager.c | 6 +++++- include/linux/firmware/xlnx-zynqmp.h | 1 + 3 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 125bf6ad28bf..ff57dda669c7 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -92,6 +92,8 @@ static int zynqmp_pm_ret_code(u32 ret_status) return 0; case XST_PM_NO_FEATURE: return -ENOTSUPP; + case XST_PM_INVALID_VERSION: + return -EOPNOTSUPP; case XST_PM_NO_ACCESS: return -EACCES; case XST_PM_ABORT_SUSPEND: @@ -396,7 +398,7 @@ int zynqmp_pm_register_sgi(u32 sgi_num, u32 reset) int ret; ret = zynqmp_pm_invoke_fn(TF_A_PM_REGISTER_SGI, NULL, 2, sgi_num, reset); - if (!ret) + if (ret != -EOPNOTSUPP && !ret) return ret; /* try old implementation as fallback strategy if above fails */ diff --git a/drivers/soc/xilinx/xlnx_event_manager.c b/drivers/soc/xilinx/xlnx_event_manager.c index adb875f89829..27a8d89a0a09 100644 --- a/drivers/soc/xilinx/xlnx_event_manager.c +++ b/drivers/soc/xilinx/xlnx_event_manager.c @@ -653,7 +653,11 @@ static int xlnx_event_manager_probe(struct platform_device *pdev) ret = zynqmp_pm_register_sgi(sgi_num, 0); if (ret) { - dev_err(&pdev->dev, "SGI %d Registration over TF-A failed with %d\n", sgi_num, ret); + if (ret == -EOPNOTSUPP) + dev_err(&pdev->dev, "SGI registration not supported by TF-A or Xen\n"); + else + dev_err(&pdev->dev, "SGI %d registration failed, err %d\n", sgi_num, ret); + xlnx_event_cleanup_sgi(pdev); return ret; } diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index 96f3d949afd8..815bef3f0bd9 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -172,6 +172,7 @@ enum pm_api_id { /* PMU-FW return status codes */ enum pm_ret_status { XST_PM_SUCCESS = 0, + XST_PM_INVALID_VERSION = 4, XST_PM_NO_FEATURE = 19, XST_PM_INTERNAL = 2000, XST_PM_CONFLICT = 2001, -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel