Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   "Moger, Babu" <Babu.Moger@amd.com>
To:     "tglx@linutronix.de" <tglx@linutronix.de>,
        "mingo@redhat.com" <mingo@redhat.com>,
        "hpa@zytor.com" <hpa@zytor.com>,
        "reinette.chatre@intel.com" <reinette.chatre@intel.com>,
        "fenghua.yu@intel.com" <fenghua.yu@intel.com>,
        "james.morse@arm.com" <james.morse@arm.com>,
        "vikas.shivappa@linux.intel.com" <vikas.shivappa@linux.intel.com>,
        "tony.luck@intel.com" <tony.luck@intel.com>
CC:     "x86@kernel.org" <x86@kernel.org>,
        "peterz@infradead.org" <peterz@infradead.org>,
        "Moger, Babu" <Babu.Moger@amd.com>,
        "pombredanne@nexb.com" <pombredanne@nexb.com>,
        "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
        "kstewart@linuxfoundation.org" <kstewart@linuxfoundation.org>,
        "bp@suse.de" <bp@suse.de>,
        "rafael.j.wysocki@intel.com" <rafael.j.wysocki@intel.com>,
        "ak@linux.intel.com" <ak@linux.intel.com>,
        "kirill.shutemov@linux.intel.com" <kirill.shutemov@linux.intel.com>,
        "xiaochen.shen@intel.com" <xiaochen.shen@intel.com>,
        "colin.king@canonical.com" <colin.king@canonical.com>,
        "Hurwitz, Sherry" <sherry.hurwitz@amd.com>,
        "Lendacky, Thomas" <Thomas.Lendacky@amd.com>,
        "pbonzini@redhat.com" <pbonzini@redhat.com>,
        "dwmw@amazon.co.uk" <dwmw@amazon.co.uk>,
        "luto@kernel.org" <luto@kernel.org>,
        "jroedel@suse.de" <jroedel@suse.de>,
        "jannh@google.com" <jannh@google.com>,
        "dima@arista.com" <dima@arista.com>,
        "jpoimboe@redhat.com" <jpoimboe@redhat.com>,
        "vkuznets@redhat.com" <vkuznets@redhat.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH v3 03/11] arch/x86: Re-arrange RDT init code
Thread-Topic: [PATCH v3 03/11] arch/x86: Re-arrange RDT init code
Thread-Index: AQHUYaGhdaEXYEd4YEq3qUhw6ousWQ==
Date:   Thu, 11 Oct 2018 20:33:12 +0000
Message-ID: <20181011203223.18157-4-babu.moger@amd.com>
References: <20181011203223.18157-1-babu.moger@amd.com>
In-Reply-To: <20181011203223.18157-1-babu.moger@amd.com>
Accept-Language: en-US
Content-Language: en-US
x-ms-exchange-messagesentrepresentingtype: 1
x-originating-ip: [165.204.78.1]
x-ms-publictraffictype: Email
x-microsoft-exchange-diagnostics: 1;DM5PR12MB1674;20:n2I/90kYHbbXTM8p8x0hdyfuXXmrfyIrEylB0yYS6gc9lu7uZsRI/1lBaJroGF4TZet+Sx1cEKMEXqBzl5HYFdSL6El2htEOryvxmwyLVn6C35pfHXd2yN+PjFCQ+GE1MZPvXn/TRK/CA0ZZxNA6OWsWVVx7k/dq/egkmTIs+OfeFseU/9p1HvySnCNYlM5kGHAMD3KIHv6K28THMCZoEHTdvE4NFVRUBmHbRr4Yqui3fZv24SlfbvkABa01e1zx
x-ms-office365-filtering-correlation-id: b111fc40-d344-4ff7-71da-08d62fb8c393
x-ms-office365-filtering-ht: Tenant
x-microsoft-antispam: BCL:0;PCL:0;RULEID:(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600074)(711020)(4618075)(2017052603328)(7153060)(7193020);SRVR:DM5PR12MB1674;
x-ms-traffictypediagnostic: DM5PR12MB1674:
x-microsoft-antispam-prvs: <DM5PR12MB16741434136237798406BEBA95E10@DM5PR12MB1674.namprd12.prod.outlook.com>
x-exchange-antispam-report-test: UriScan:(767451399110);
x-ms-exchange-senderadcheck: 1
x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(6040522)(2401047)(8121501046)(5005006)(823302103)(3002001)(3231355)(944501410)(52105095)(10201501046)(93006095)(93001095)(6055026)(149066)(150057)(6041310)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123564045)(20161123558120)(20161123562045)(20161123560045)(201708071742011)(7699051);SRVR:DM5PR12MB1674;BCL:0;PCL:0;RULEID:;SRVR:DM5PR12MB1674;
x-forefront-prvs: 08220FA8D6
x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(366004)(346002)(376002)(136003)(396003)(39860400002)(189003)(199004)(76176011)(53936002)(6486002)(99286004)(478600001)(6512007)(52116002)(4326008)(446003)(81166006)(6436002)(81156014)(8676002)(14454004)(2501003)(26005)(5250100002)(102836004)(1076002)(3846002)(6116002)(186003)(2906002)(7736002)(2201001)(110136005)(7416002)(54906003)(486006)(11346002)(476003)(2616005)(2900100001)(97736004)(8936002)(106356001)(305945005)(316002)(86362001)(256004)(72206003)(66066001)(25786009)(386003)(105586002)(71200400001)(71190400001)(36756003)(6506007)(5660300001)(68736007);DIR:OUT;SFP:1101;SCL:1;SRVR:DM5PR12MB1674;H:DM5PR12MB2471.namprd12.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1;
received-spf: None (protection.outlook.com: amd.com does not designate
 permitted sender hosts)
x-microsoft-antispam-message-info: ZvCLYKfvIfbicqXoJ8/tc9wvMnUJpYO009qyaLYusT0mbP39d0CmOivAWb527uz37nIbQHEklwHwKBxHXJquaLQBkJ4lD30yRsEmZpo4D8s4DnVmxbVtEjog0nl9oxGrLLDJSexlh0qjMNooCxsq8AOB98AeQGldwVw1Noqo0BVsbEJLQaFJzBCMijoxOXWWdwsNS0bxJO0Gf6tmpU+ARLIyhDu+bR7JzoV8oWdMwgqYArYz0Z1i7VKu7TCmRCc6iemvgoF+Nqh175S+yB3HCZ+mGdr8iQIFA6xuHzLPYJRIva+la71NsVhfCGHdLrzVnNfibgh+0LxEZ3i9lejgV7Glae1cBsdekkYbJVd+0Ss=
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-OriginatorOrg: amd.com
X-MS-Exchange-CrossTenant-Network-Message-Id: b111fc40-d344-4ff7-71da-08d62fb8c393
X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Oct 2018 20:33:12.4854
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d
X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR12MB1674
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Separate the call sequence for rdt_quirks and MBA feature.
This is in preparation to handle vendor differences in these
call sequences.

Signed-off-by: Babu Moger <babu.moger@amd.com>
---
 arch/x86/kernel/cpu/resctrl.c | 29 +++++++++++++++++++++++------
 1 file changed, 23 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/cpu/resctrl.c b/arch/x86/kernel/cpu/resctrl.c
index 07158963ca30..2c564301e008 100644
--- a/arch/x86/kernel/cpu/resctrl.c
+++ b/arch/x86/kernel/cpu/resctrl.c
@@ -787,6 +787,16 @@ static bool __init rdt_cpu_has(int flag)
 	return ret;
 }
=20
+static __init bool rdt_mba_config(void)
+{
+	if (rdt_cpu_has(X86_FEATURE_MBA)) {
+		if (rdt_get_mem_config(&rdt_resources_all[RDT_RESOURCE_MBA]))
+			return true;
+	}
+
+	return false;
+}
+
 static __init bool get_rdt_alloc_resources(void)
 {
 	bool ret =3D false;
@@ -811,10 +821,9 @@ static __init bool get_rdt_alloc_resources(void)
 		ret =3D true;
 	}
=20
-	if (rdt_cpu_has(X86_FEATURE_MBA)) {
-		if (rdt_get_mem_config(&rdt_resources_all[RDT_RESOURCE_MBA]))
-			ret =3D true;
-	}
+	if (rdt_mba_config())
+		ret =3D true;
+
 	return ret;
 }
=20
@@ -833,7 +842,7 @@ static __init bool get_rdt_mon_resources(void)
 	return !rdt_get_mon_l3_config(&rdt_resources_all[RDT_RESOURCE_L3]);
 }
=20
-static __init void rdt_quirks(void)
+static __init void rdt_quirks_intel(void)
 {
 	switch (boot_cpu_data.x86_model) {
 	case INTEL_FAM6_HASWELL_X:
@@ -848,9 +857,14 @@ static __init void rdt_quirks(void)
 	}
 }
=20
+static __init void rdt_quirks(void)
+{
+	if (boot_cpu_data.x86_vendor =3D=3D X86_VENDOR_INTEL)
+		rdt_quirks_intel();
+}
+
 static __init bool get_rdt_resources(void)
 {
-	rdt_quirks();
 	rdt_alloc_capable =3D get_rdt_alloc_resources();
 	rdt_mon_capable =3D get_rdt_mon_resources();
=20
@@ -864,6 +878,9 @@ static int __init resctrl_late_init(void)
 	struct rdt_resource *r;
 	int state, ret;
=20
+	/* Run quirks first */
+	rdt_quirks();
+
 	if (!get_rdt_resources())
 		return -ENODEV;
=20
--=20
2.17.1