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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 DM6NAM11FT096.mail.protection.outlook.com (10.13.173.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.5709.10 via Frontend Transport; Mon, 10 Oct 2022 20:28:47 +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 15.1.2375.28; Mon, 10 Oct 2022 15:28:45 -0500 Subject: [PATCH v6 02/12] x86/resctrl: Add a new resource type RDT_RESOURCE_SMBA From: Babu Moger To: , , , , CC: , , , , , , , , , , , , , , , , , , , , , , , , Date: Mon, 10 Oct 2022 15:28:44 -0500 Message-ID: <166543372483.23830.14249332360278807042.stgit@bmoger-ubuntu> In-Reply-To: <166543345606.23830.3120625408601531368.stgit@bmoger-ubuntu> References: <166543345606.23830.3120625408601531368.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: 10 Oct 2022 20:28:47.3543 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 15f1d1e1-2ee7-4dca-4fc1-08daaafe08f1 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: DM6NAM11FT096.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB6717 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: Ingo Molnar --- 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 de62b0b87ced..efffce716f3a 100644 --- a/arch/x86/kernel/cpu/resctrl/core.c +++ b/arch/x86/kernel/cpu/resctrl/core.c @@ -106,6 +106,18 @@ 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 5f7128686cfd..43d9f6f5a931 100644 --- a/arch/x86/kernel/cpu/resctrl/internal.h +++ b/arch/x86/kernel/cpu/resctrl/internal.h @@ -419,6 +419,7 @@ enum resctrl_res_level { RDT_RESOURCE_L3, RDT_RESOURCE_L2, RDT_RESOURCE_MBA, + RDT_RESOURCE_SMBA, =20 /* Must be the last */ RDT_NUM_RESOURCES,