From: "Moger, Babu" <Babu.Moger@amd.com>
To: "tglx@linutronix.de" <tglx@linutronix.de>,
"mingo@redhat.com" <mingo@redhat.com>,
"bp@alien8.de" <bp@alien8.de>, "corbet@lwn.net" <corbet@lwn.net>,
"fenghua.yu@intel.com" <fenghua.yu@intel.com>,
"reinette.chatre@intel.com" <reinette.chatre@intel.com>,
"peterz@infradead.org" <peterz@infradead.org>,
"gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>,
"davem@davemloft.net" <davem@davemloft.net>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>
Cc: "hpa@zytor.com" <hpa@zytor.com>,
"x86@kernel.org" <x86@kernel.org>,
"mchehab+samsung@kernel.org" <mchehab+samsung@kernel.org>,
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<kirill.shutemov@linux.intel.com>,
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"xiaochen.shen@intel.com" <xiaochen.shen@intel.com>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"Singh, Brijesh" <brijesh.singh@amd.com>,
"Hurwitz, Sherry" <sherry.hurwitz@amd.com>,
"dwmw2@infradead.org" <dwmw2@infradead.org>,
"Lendacky, Thomas" <Thomas.Lendacky@amd.com>,
"luto@kernel.org" <luto@kernel.org>,
"joro@8bytes.org" <joro@8bytes.org>,
"jannh@google.com" <jannh@google.com>,
"vkuznets@redhat.com" <vkuznets@redhat.com>,
"rian@alum.mit.edu" <rian@alum.mit.edu>,
"jpoimboe@redhat.com" <jpoimboe@redhat.com>,
"Moger, Babu" <Babu.Moger@amd.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>
Subject: [PATCH v7 08/13] arch/x86: Add vendor check for MBA software controller
Date: Fri, 9 Nov 2018 20:52:39 +0000 [thread overview]
Message-ID: <20181109205153.14811-9-babu.moger@amd.com> (raw)
In-Reply-To: <20181109205153.14811-1-babu.moger@amd.com>
MBA software controller support is available only on Intel.
Suggested-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Babu Moger <babu.moger@amd.com>
---
arch/x86/kernel/cpu/resctrl_rdtgroup.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/resctrl_rdtgroup.c b/arch/x86/kernel/cpu/resctrl_rdtgroup.c
index 8b6b4a8bb7ca..022a56096024 100644
--- a/arch/x86/kernel/cpu/resctrl_rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl_rdtgroup.c
@@ -1878,7 +1878,10 @@ static int parse_rdtgroupfs_options(char *data)
if (ret)
goto out;
} else if (!strcmp(token, "mba_MBps")) {
- ret = set_mba_sc(true);
+ if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
+ ret = set_mba_sc(true);
+ else
+ ret = -EINVAL;
if (ret)
goto out;
} else {
--
2.17.1
next prev parent reply other threads:[~2018-11-09 20:52 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-09 20:52 [PATCH v7 00/13] arch/x86: AMD QoS support Moger, Babu
2018-11-09 20:52 ` [PATCH v7 01/13] arch/x86: Start renaming the rdt files to more generic names Moger, Babu
2018-11-12 17:16 ` Borislav Petkov
2018-11-12 19:16 ` Moger, Babu
2018-11-13 21:35 ` Yu, Fenghua
2018-11-13 21:40 ` Borislav Petkov
2018-11-09 20:52 ` [PATCH v7 02/13] arch/x86: Rename the RDT functions and definitions Moger, Babu
2018-11-12 17:56 ` Borislav Petkov
2018-11-12 19:25 ` Moger, Babu
2018-11-12 19:46 ` Borislav Petkov
2018-11-12 20:51 ` Moger, Babu
2018-11-09 20:52 ` [PATCH v7 03/13] arch/x86: Re-arrange RDT init code Moger, Babu
2018-11-14 19:05 ` Borislav Petkov
2018-11-14 20:07 ` Moger, Babu
2018-11-09 20:52 ` [PATCH v7 04/13] arch/x86: Bring all the macros to resctrl.h Moger, Babu
2018-11-09 20:52 ` [PATCH v7 05/13] arch/x86: Rename config parameter INTEL_RDT to RESCTRL Moger, Babu
2018-11-09 20:52 ` [PATCH v7 06/13] arch/x86: Initialize the resource functions that are different Moger, Babu
2018-11-09 20:52 ` [PATCH v7 07/13] arch/x86: Bring cbm_validate function into the resource structure Moger, Babu
2018-11-09 20:52 ` Moger, Babu [this message]
2018-11-09 20:52 ` [PATCH v7 09/13] arch/x86: Update the RESCTRL config parameter Moger, Babu
2018-11-09 20:52 ` [PATCH v7 10/13] arch/x86: Add AMD feature bit X86_FEATURE_MBA in cpuid bits array Moger, Babu
2018-11-09 20:52 ` [PATCH v7 11/13] arch/x86: Introduce QOS feature for AMD Moger, Babu
2018-11-13 21:49 ` Yu, Fenghua
2018-11-14 16:38 ` Moger, Babu
2018-11-14 18:17 ` Moger, Babu
2018-11-14 19:31 ` Yu, Fenghua
2018-11-09 20:52 ` [PATCH v7 12/13] Documentation/x86: Rename and update intel_rdt_ui.txt Moger, Babu
2018-11-09 20:52 ` [PATCH v7 13/13] MAINTAINERS: Update the file and documentation names in arch/x86 Moger, Babu
2018-11-19 23:58 ` [PATCH v7 00/13] arch/x86: AMD QoS support Pavel Machek
2018-11-20 2:20 ` Yu, Fenghua
2018-11-20 9:13 ` Pavel Machek
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