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bh=fWY6oO/baMfr57bE3MgWZkr0g+68HsVSdDA5xv8F+tA=; b=okcEpIoPJywABfnGaygwkxw2yZQAxdPNpvFA64zC62W2dcgybLZ9a3bSTRmAmoeuZhjPRbzTql/b3gKuHfp0vLvy2l2p3f654Nbe/12pOM9EokWwv/SPGBcvr5U2JNeiwSBJBStZfxk8dvoQ1N3ZVMAst1d4Iy4wsOkSm9zAsGo= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=os.amperecomputing.com; Received: from SN7PR01MB7903.prod.exchangelabs.com (2603:10b6:806:34f::17) by DS1PR01MB8717.prod.exchangelabs.com (2603:10b6:8:214::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8699.26; Tue, 6 May 2025 21:38:26 +0000 Received: from SN7PR01MB7903.prod.exchangelabs.com ([fe80::cf45:9855:a64e:382f]) by SN7PR01MB7903.prod.exchangelabs.com ([fe80::cf45:9855:a64e:382f%6]) with mapi id 15.20.8699.022; Tue, 6 May 2025 21:38:26 +0000 From: Zaid Alali <zaidal@os.amperecomputing.com> To: rafael@kernel.org, lenb@kernel.org, james.morse@arm.com, tony.luck@intel.com, bp@alien8.de, robert.moore@intel.com, Jonathan.Cameron@huawei.com, ira.weiny@intel.com, Benjamin.Cheatham@amd.com, dan.j.williams@intel.com, arnd@arndb.de, Avadhut.Naik@amd.com, u.kleine-koenig@pengutronix.de, john.allen@amd.com, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, acpica-devel@lists.linux.dev Subject: [PATCH v7 0/9] Enable EINJv2 Support Date: Tue, 6 May 2025 14:38:04 -0700 Message-ID: <20250506213814.2365788-1-zaidal@os.amperecomputing.com> X-Mailer: git-send-email 2.43.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: MW4PR03CA0102.namprd03.prod.outlook.com (2603:10b6:303:b7::17) To SN7PR01MB7903.prod.exchangelabs.com (2603:10b6:806:34f::17) Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: <linux-acpi.vger.kernel.org> List-Subscribe: <mailto:linux-acpi+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-acpi+unsubscribe@vger.kernel.org> MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN7PR01MB7903:EE_|DS1PR01MB8717:EE_ X-MS-Office365-Filtering-Correlation-Id: 7a28fd9d-9809-46f0-abe8-08dd8ce65581 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|7416014|52116014|376014|366016|38350700014|921020; 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Enable EINJv2 Support
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The goal of this update is to allow the driver to simultaneously support EINJ and EINJv2. The implementation follows the approved ACPI specs[1][2] that enables the driver to discover system capabilities through GET_ERROR_TYPE. Note: The first two ACPICA patches are to be dropped once merged in ACPICA project, see pull request[3]. Link: https://github.com/tianocore/edk2/issues/9449 [1] Link: https://github.com/tianocore/edk2/issues/9017 [2] Link: https://github.com/acpica/acpica/pull/977 [3] V5: *Users no longer input component array size, instead it is counted by parsing the component array itself. V6: *Fix memory leak. *If EINJv2 initialization failed, EINJv1 will still work, and probe function will continue with disabled EINJv2. V7: *Update component array to take 128-bit values to match ACPI specs. *Enable Vendor EINJv2 injections *Moved component array parsing and validating to a separate function to improve readability. Zaid Alali (9): ACPICA: Update values to hex to follow ACPI specs ACPICA: Add EINJv2 get error type action ACPI: APEI: EINJ: Fix kernel test sparse warnings ACPI: APEI: EINJ: Remove redundant calls to einj_get_available_error_type ACPI: APEI: EINJ: Enable the discovery of EINJv2 capabilities ACPI: APEI: EINJ: Add einjv2 extension struct ACPI: APEI: EINJ: Add debugfs files for EINJv2 support ACPI: APEI: EINJ: Enable EINJv2 error injections ACPI: APEI: EINJ: Update the documentation for EINJv2 support .../firmware-guide/acpi/apei/einj.rst | 32 ++ drivers/acpi/apei/apei-internal.h | 2 +- drivers/acpi/apei/einj-core.c | 410 ++++++++++++++---- drivers/acpi/apei/einj-cxl.c | 2 +- include/acpi/actbl1.h | 25 +- 5 files changed, 379 insertions(+), 92 deletions(-)