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Thu, 24 Nov 2022 23:41:49 -0600 From: Appana Durga Kedareswara rao To: , , , , , , , , , CC: , , Krzysztof Kozlowski Subject: [PATCH v7 1/4] dt-bindings: misc: tmr-manager: Add device-tree binding for TMR Manager Date: Fri, 25 Nov 2022 11:11:10 +0530 Message-ID: <20221125054113.122833-2-appana.durga.kedareswara.rao@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221125054113.122833-1-appana.durga.kedareswara.rao@amd.com> References: <20221125054113.122833-1-appana.durga.kedareswara.rao@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: BN8NAM11FT030:EE_|MN2PR12MB4488:EE_ X-MS-Office365-Filtering-Correlation-Id: 82fc615c-655b-4733-2e9d-08dacea7c8d5 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:(13230022)(4636009)(39860400002)(346002)(396003)(376002)(136003)(451199015)(46966006)(40470700004)(36840700001)(966005)(478600001)(186003)(16526019)(82310400005)(426003)(41300700001)(2616005)(1076003)(316002)(54906003)(103116003)(40460700003)(82740400003)(36756003)(6666004)(40480700001)(110136005)(26005)(86362001)(4326008)(70586007)(921005)(70206006)(8676002)(5660300002)(8936002)(336012)(356005)(81166007)(47076005)(83380400001)(2906002)(36860700001)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Nov 2022 05:42:05.0152 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 82fc615c-655b-4733-2e9d-08dacea7c8d5 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: BN8NAM11FT030.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB4488 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Triple Modular Redundancy(TMR) subsystem contains three microblaze cores, subsystem is fault-tolerant and continues to operate nominally after encountering an error. Together with the capability to detect and recover from errors, the implementation ensures the reliability of the entire subsystem. TMR Manager is responsible for performing recovery of the subsystem detects the fault via a break signal it invokes microblaze software break handler which calls the tmr manager driver api to update the error count and status. Signed-off-by: Appana Durga Kedareswara rao Reviewed-by: Krzysztof Kozlowski --- Changes for v7: --> None. Changes for v6: --> None. Changes for v5: --> None. Changes for v4: --> None. Changes for v3: --> Added Krzysztof Reviewed by. Changes for v2: --> Added minimum and maximum values for xlnx,magic1 property as suggested by Michal. --> Fixed 80 char limit in description as suggested by Michal. .../bindings/misc/xlnx,tmr-manager.yaml | 47 +++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/xlnx,tmr-manager.yaml diff --git a/Documentation/devicetree/bindings/misc/xlnx,tmr-manager.yaml b/Documentation/devicetree/bindings/misc/xlnx,tmr-manager.yaml new file mode 100644 index 000000000000..27de12147a52 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/xlnx,tmr-manager.yaml @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/misc/xlnx,tmr-manager.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xilinx Triple Modular Redundancy(TMR) Manager IP + +maintainers: + - Appana Durga Kedareswara rao + +description: | + The Triple Modular Redundancy(TMR) Manager is responsible for handling the + TMR subsystem state, including fault detection and error recovery. The core + is triplicated in each of the sub-blocks in the TMR subsystem, and provides + majority voting of its internal state. + +properties: + compatible: + enum: + - xlnx,tmr-manager-1.0 + + reg: + maxItems: 1 + + xlnx,magic1: + minimum: 0 + maximum: 255 + description: + Magic byte 1, When configured it allows the controller to perform + recovery. + $ref: /schemas/types.yaml#/definitions/uint32 + +required: + - compatible + - reg + - xlnx,magic1 + +additionalProperties: false + +examples: + - | + tmr-manager@44a10000 { + compatible = "xlnx,tmr-manager-1.0"; + reg = <0x44a10000 0x10000>; + xlnx,magic1 = <0x46>; + }; From patchwork Fri Nov 25 05:41:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Appana Durga Kedareswara rao X-Patchwork-Id: 1708933 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Nov 2022 05:42:58.4878 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1f903e60-3ad5-406e-12b6-08dacea7e8b2 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: BN8NAM11FT024.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB7233 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The Triple Modular Redundancy(TMR) Inject core provides functional fault injection by changing selected MicroBlaze instructions, which provides the possibility to verify that the TMR subsystem error detection and fault recovery logic is working properly. Signed-off-by: Appana Durga Kedareswara rao Reviewed-by: Krzysztof Kozlowski --- Changes for v7: --> None. Changes for v6: --> None. Changes for v5: --> None. Changes for v4: --> None. Changes for v3: --> Added Krzysztof Reviewed by. Changes for v2: --> Added minimum and maximum values for xlnx,magic1 property as suggested by Michal. --> Fixed 80 char limit in description as suggested by Michal. .../bindings/misc/xlnx,tmr-inject.yaml | 47 +++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/xlnx,tmr-inject.yaml diff --git a/Documentation/devicetree/bindings/misc/xlnx,tmr-inject.yaml b/Documentation/devicetree/bindings/misc/xlnx,tmr-inject.yaml new file mode 100644 index 000000000000..1b6020e4ec27 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/xlnx,tmr-inject.yaml @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/misc/xlnx,tmr-inject.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xilinx Triple Modular Redundancy(TMR) Inject IP + +maintainers: + - Appana Durga Kedareswara rao + +description: | + The Triple Modular Redundancy(TMR) Inject core provides functional fault + injection by changing selected MicroBlaze instructions, which provides the + possibility to verify that the TMR subsystem error detection and fault + recovery logic is working properly. + +properties: + compatible: + enum: + - xlnx,tmr-inject-1.0 + + reg: + maxItems: 1 + + xlnx,magic: + minimum: 0 + maximum: 255 + description: | + Magic number, When configured it allows the controller to perform + recovery. + $ref: /schemas/types.yaml#/definitions/uint32 + +required: + - compatible + - reg + - xlnx,magic + +additionalProperties: false + +examples: + - | + fault-inject@44a30000 { + compatible = "xlnx,tmr-inject-1.0"; + reg = <0x44a10000 0x10000>; + xlnx,magic = <0x46>; + };