Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
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
Subject: [PATCH v2 03/10] x86/resctrl: Add a new resource type
 RDT_RESOURCE_SMBA
From:   Babu Moger <babu.moger@amd.com>
To:     <fenghua.yu@intel.com>, <reinette.chatre@intel.com>,
        <tglx@linutronix.de>, <mingo@redhat.com>, <bp@alien8.de>
CC:     <eranian@google.com>, <dave.hansen@linux.intel.com>,
        <x86@kernel.org>, <hpa@zytor.com>, <corbet@lwn.net>,
        <hpa@zytor.com>, <linux-kernel@vger.kernel.org>,
        <linux-doc@vger.kernel.org>
Date:   Mon, 1 Aug 2022 15:55:59 -0500
Message-ID: <165938735951.724959.5927072727388257548.stgit@bmoger-ubuntu>
In-Reply-To: <165938717220.724959.10931629283087443782.stgit@bmoger-ubuntu>
References: <165938717220.724959.10931629283087443782.stgit@bmoger-ubuntu>
User-Agent: StGit/1.1.dev103+g5369f4c
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Aug 2022 20:56:01.3987
 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: ec0359c8-05a0-496e-a7bc-08da74003df4
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: BN8NAM11FT014.eop-nam11.prod.protection.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Anonymous
X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem
X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL3PR12MB6425
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: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Adds a new resource type RDT_RESOURCE_SMBA to handle the QoS=0A=
enforcement policies on the external slow memory.=0A=
=0A=
Signed-off-by: Babu Moger <babu.moger@amd.com>=0A=
---=0A=
 arch/x86/kernel/cpu/resctrl/core.c     |   12 ++++++++++++=0A=
 arch/x86/kernel/cpu/resctrl/internal.h |    1 +=0A=
 2 files changed, 13 insertions(+)=0A=
=0A=
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resct=
rl/core.c=0A=
index a5c51a14fbce..6c38427b71a2 100644=0A=
--- a/arch/x86/kernel/cpu/resctrl/core.c=0A=
+++ b/arch/x86/kernel/cpu/resctrl/core.c=0A=
@@ -100,6 +100,18 @@ struct rdt_hw_resource rdt_resources_all[] =3D {=0A=
 			.fflags			=3D RFTYPE_RES_MB,=0A=
 		},=0A=
 	},=0A=
+	[RDT_RESOURCE_SMBA] =3D=0A=
+	{=0A=
+		.r_resctrl =3D {=0A=
+			.rid			=3D RDT_RESOURCE_SMBA,=0A=
+			.name			=3D "SB",=0A=
+			.cache_level		=3D 3,=0A=
+			.domains		=3D domain_init(RDT_RESOURCE_SMBA),=0A=
+			.parse_ctrlval		=3D parse_bw,=0A=
+			.format_str		=3D "%d=3D%*u",=0A=
+			.fflags			=3D RFTYPE_RES_MB,=0A=
+		},=0A=
+	},=0A=
 };=0A=
 =0A=
 /*=0A=
diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/r=
esctrl/internal.h=0A=
index 1d647188a43b..24a1dfeb6cb2 100644=0A=
--- a/arch/x86/kernel/cpu/resctrl/internal.h=0A=
+++ b/arch/x86/kernel/cpu/resctrl/internal.h=0A=
@@ -418,6 +418,7 @@ enum resctrl_res_level {=0A=
 	RDT_RESOURCE_L3,=0A=
 	RDT_RESOURCE_L2,=0A=
 	RDT_RESOURCE_MBA,=0A=
+	RDT_RESOURCE_SMBA,=0A=
 =0A=
 	/* Must be the last */=0A=
 	RDT_NUM_RESOURCES,=0A=
=0A=