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Wysocki" , Shameerali Kolothum Thodi , Mostafa Saleh Subject: [PATCH v4 02/12] ACPICA: IORT: Update for revision E.f Date: Wed, 30 Oct 2024 21:20:46 -0300 Message-ID: <2-v4-9e99b76f3518+3a8-smmuv3_nesting_jgg@nvidia.com> In-Reply-To: <0-v4-9e99b76f3518+3a8-smmuv3_nesting_jgg@nvidia.com> References: X-ClientProxiedBy: BL1P223CA0022.NAMP223.PROD.OUTLOOK.COM (2603:10b6:208:2c4::27) To CH3PR12MB8659.namprd12.prod.outlook.com (2603:10b6:610:17c::13) Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH3PR12MB8659:EE_|DM4PR12MB7573:EE_ X-MS-Office365-Filtering-Correlation-Id: c1f3c69c-1b9e-4aac-0e73-08dcf941e3d4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; ARA:13230040|376014|7416014|366016|1800799024|921020; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; 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This CANWBS defines the coherency of memory accesses to be not marked IOWB cacheable/shareable. Its value further implies the coherency impact from a pair of mismatched memory attributes (e.g. in a nested translation case): 0x0: Use of mismatched memory attributes for accesses made by this device may lead to a loss of coherency. 0x1: Coherency of accesses made by this device to locations in Conventional memory are ensured as follows, even if the memory attributes for the accesses presented by the device or provided by the SMMU are different from Inner and Outer Write-back cacheable, Shareable. Link: https://github.com/acpica/acpica/commit/c4f5c083 Acked-by: Rafael J. Wysocki Signed-off-by: Nicolin Chen Acked-by: Hanjun Guo Tested-by: Nicolin Chen Reviewed-by: Jerry Snitselaar Reviewed-by: Donald Dutile Signed-off-by: Jason Gunthorpe --- include/acpi/actbl2.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index d3858eebc2553b..2e917a8f8bca82 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -453,7 +453,7 @@ struct acpi_table_ccel { * IORT - IO Remapping Table * * Conforms to "IO Remapping Table System Software on ARM Platforms", - * Document number: ARM DEN 0049E.e, Sep 2022 + * Document number: ARM DEN 0049E.f, Apr 2024 * ******************************************************************************/ @@ -524,6 +524,7 @@ struct acpi_iort_memory_access { #define ACPI_IORT_MF_COHERENCY (1) #define ACPI_IORT_MF_ATTRIBUTES (1<<1) +#define ACPI_IORT_MF_CANWBS (1<<2) /* * IORT node specific subtables