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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 CO1NAM11FT003.mail.protection.outlook.com (10.13.175.93) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.5857.22 via Frontend Transport; Thu, 1 Dec 2022 15:36:15 +0000 Received: from [127.0.1.1] (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; Thu, 1 Dec 2022 09:36:13 -0600 Subject: [PATCH v9 02/13] x86/resctrl: Add a new resource type RDT_RESOURCE_SMBA From: Babu Moger To: , , , , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Date: Thu, 1 Dec 2022 09:36:07 -0600 Message-ID: <166990896761.17806.7084760980218047026.stgit@bmoger-ubuntu> In-Reply-To: <166990882621.17806.16780480657453071426.stgit@bmoger-ubuntu> References: <166990882621.17806.16780480657453071426.stgit@bmoger-ubuntu> User-Agent: StGit/1.1.dev103+g5369f4c MIME-Version: 1.0 Content-Type: text/plain; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Dec 2022 15:36:15.0219 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 24b39381-904b-4081-b16f-08dad3b1c86f 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: CO1NAM11FT003.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB6458 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a new resource type RDT_RESOURCE_SMBA to handle the QoS enforcement policies on the external slow memory. Signed-off-by: Babu Moger Reviewed-by: Reinette Chatre --- arch/x86/kernel/cpu/resctrl/core.c | 12 ++++++++++++ arch/x86/kernel/cpu/resctrl/internal.h | 1 + 2 files changed, 13 insertions(+) diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resct= rl/core.c index c98e52ff5f20..f6af3ac1ef20 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -100,6 +100,18 @@ struct rdt_hw_resource rdt_resources_all[] =3D { .fflags =3D RFTYPE_RES_MB, }, }, + [RDT_RESOURCE_SMBA] =3D + { + .r_resctrl =3D { + .rid =3D RDT_RESOURCE_SMBA, + .name =3D "SMBA", + .cache_level =3D 3, + .domains =3D domain_init(RDT_RESOURCE_SMBA), + .parse_ctrlval =3D parse_bw, + .format_str =3D "%d=3D%*u", + .fflags =3D RFTYPE_RES_MB, + }, + }, }; =20 /* diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/r= esctrl/internal.h index 5ebd28e6aa0c..fdbbf66312ec 100644 --- a/arch/x86/kernel/cpu/resctrl/internal.h +++ b/arch/x86/kernel/cpu/resctrl/internal.h @@ -409,6 +409,7 @@ enum resctrl_res_level { RDT_RESOURCE_L3, RDT_RESOURCE_L2, RDT_RESOURCE_MBA, + RDT_RESOURCE_SMBA, =20 /* Must be the last */ RDT_NUM_RESOURCES,