From: "Moger, Babu" <Babu.Moger@amd.com>
To: "tglx@linutronix.de" <tglx@linutronix.de>,
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Cc: "hpa@zytor.com" <hpa@zytor.com>,
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"Lendacky, Thomas" <Thomas.Lendacky@amd.com>,
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"jpoimboe@redhat.com" <jpoimboe@redhat.com>,
"Moger, Babu" <Babu.Moger@amd.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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Subject: [PATCH v9 07/13] x86/resctrl: Add vendor check for MBA software controller
Date: Wed, 21 Nov 2018 20:28:37 +0000 [thread overview]
Message-ID: <20181121202811.4492-8-babu.moger@amd.com> (raw)
In-Reply-To: <20181121202811.4492-1-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 cf159095b612..fada488069cb 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:[~2018-11-21 20:28 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-21 20:28 [PATCH v9 00/13] arch/resctrl: AMD QoS support Moger, Babu
2018-11-21 20:28 ` [PATCH v9 01/13] x86/resctrl: Rename and move rdt files to new directory Moger, Babu
2018-11-22 18:06 ` Borislav Petkov
2018-11-22 21:45 ` [tip:x86/cache] x86/resctrl: Rename and move rdt files to a separate directory tip-bot for Babu Moger
2018-11-23 7:28 ` [PATCH v9 01/13] x86/resctrl: Rename and move rdt files to new directory Ingo Molnar
2018-11-23 8:22 ` Borislav Petkov
2018-11-23 8:41 ` Ingo Molnar
2018-11-23 9:00 ` Borislav Petkov
2018-11-23 11:41 ` Ingo Molnar
2018-11-23 12:43 ` Thomas Gleixner
2018-11-26 18:31 ` Luck, Tony
2018-11-26 19:05 ` Borislav Petkov
2018-12-23 18:27 ` [PATCH v9 00/13] arch/resctrl: AMD QoS support Jan Engelhardt
2018-12-26 17:14 ` Moger, Babu
2018-11-21 20:28 ` [PATCH v9 02/13] x86/resctrl: Rename the RDT functions and definitions Moger, Babu
2018-11-22 21:46 ` [tip:x86/cache] " tip-bot for Babu Moger
2018-11-21 20:28 ` [PATCH v9 03/13] x86/resctrl: Re-arrange RDT init code Moger, Babu
2018-11-22 21:47 ` [tip:x86/cache] x86/resctrl: Re-arrange the " tip-bot for Babu Moger
2018-11-21 20:28 ` [PATCH v9 04/13] x86/resctrl: Bring all the macros to resctrl/internal.h Moger, Babu
2018-11-22 21:47 ` [tip:x86/cache] x86/resctrl: Move " tip-bot for Babu Moger
2018-11-21 20:28 ` [PATCH v9 05/13] x86/resctrl: Initialize the resource functions that are different Moger, Babu
2018-11-22 21:48 ` [tip:x86/cache] x86/resctrl: Initialize the vendor-specific resource functions tip-bot for Babu Moger
2018-11-21 20:28 ` [PATCH v9 06/13] x86/resctrl: Bring cbm_validate function into the resource structure Moger, Babu
2018-11-22 21:48 ` [tip:x86/cache] x86/resctrl: Bring cbm_validate() " tip-bot for Babu Moger
2018-11-21 20:28 ` Moger, Babu [this message]
2018-11-22 21:49 ` [tip:x86/cache] x86/resctrl: Add vendor check for the MBA software controller tip-bot for Babu Moger
2018-11-21 20:28 ` [PATCH v9 08/13] x86/resctrl: Rename config parameter INTEL_RDT to RESCTRL Moger, Babu
2018-11-22 18:46 ` Borislav Petkov
2018-11-22 21:49 ` [tip:x86/cache] x86/resctrl: Rename the config option " tip-bot for Babu Moger
2018-11-21 20:28 ` [PATCH v9 09/13] x86/resctrl: Add AMD feature bit X86_FEATURE_MBA in cpuid bits array Moger, Babu
2018-11-22 21:50 ` [tip:x86/cache] x86/resctrl: Add AMD's X86_FEATURE_MBA to the scattered CPUID features tip-bot for Sherry Hurwitz
2018-11-21 20:28 ` [PATCH v9 10/13] x86/resctrl: Fix the messages in rdt_last_cmd_printf and rdt_last_cmd_puts Moger, Babu
2018-11-22 21:51 ` [tip:x86/cache] x86/resctrl: Fixup the user-visible strings tip-bot for Babu Moger
2018-11-26 22:16 ` [PATCH v9 10/13] x86/resctrl: Fix the messages in rdt_last_cmd_printf and rdt_last_cmd_puts Reinette Chatre
2018-11-26 22:28 ` Borislav Petkov
2018-11-26 22:44 ` Reinette Chatre
2018-11-21 20:28 ` [PATCH v9 11/13] x86/resctrl: Introduce QOS feature for AMD Moger, Babu
2018-11-22 21:51 ` [tip:x86/cache] x86/resctrl: Introduce AMD QOS feature tip-bot for Babu Moger
2018-11-21 20:28 ` [PATCH v9 12/13] Documentation: Rename and update intel_rdt_ui.txt to resctrl_ui.txt Moger, Babu
2018-11-22 21:52 ` [tip:x86/cache] " tip-bot for Babu Moger
2018-11-25 9:07 ` [PATCH v9 12/13] " Pavel Machek
2018-11-21 20:28 ` [PATCH v9 13/13] MAINTAINERS: Update the file and documentation names in arch/x86 Moger, Babu
2018-11-22 21:52 ` [tip:x86/cache] MAINTAINERS: Update resctrl filename patterns tip-bot for Babu Moger
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