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From: Babu Moger <babu.moger@amd.com>
To: <corbet@lwn.net>, <reinette.chatre@intel.com>,
	<tglx@linutronix.de>, <mingo@redhat.com>, <bp@alien8.de>
Cc: <fenghua.yu@intel.com>, <dave.hansen@linux.intel.com>,
	<x86@kernel.org>, <hpa@zytor.com>, <paulmck@kernel.org>,
	<akpm@linux-foundation.org>, <quic_neeraju@quicinc.com>,
	<rdunlap@infradead.org>, <damien.lemoal@opensource.wdc.com>,
	<songmuchun@bytedance.com>, <peterz@infradead.org>,
	<jpoimboe@kernel.org>, <pbonzini@redhat.com>,
	<babu.moger@amd.com>, <chang.seok.bae@intel.com>,
	<pawan.kumar.gupta@linux.intel.com>, <jmattson@google.com>,
	<daniel.sneddon@linux.intel.com>, <sandipan.das@amd.com>,
	<tony.luck@intel.com>, <james.morse@arm.com>,
	<linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<bagasdotme@gmail.com>, <eranian@google.com>
Subject: [PATCH v5 04/12] x86/resctrl: Include new features in command line options
Date: Tue, 27 Sep 2022 15:25:54 -0500	[thread overview]
Message-ID: <166431035471.373387.5266268593915885892.stgit@bmoger-ubuntu> (raw)
In-Reply-To: <166431016617.373387.1968875281081252467.stgit@bmoger-ubuntu>

Add the command line options to disable the new features.
smba : Slow Memory Bandwidth Allocation
bmec : Bandwidth Monitor Event Configuration.

Signed-off-by: Babu Moger <babu.moger@amd.com>
---
 Documentation/admin-guide/kernel-parameters.txt |    2 +-
 arch/x86/kernel/cpu/resctrl/core.c              |    4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 426fa892d311..71b397cc776c 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5169,7 +5169,7 @@
 	rdt=		[HW,X86,RDT]
 			Turn on/off individual RDT features. List is:
 			cmt, mbmtotal, mbmlocal, l3cat, l3cdp, l2cat, l2cdp,
-			mba.
+			mba, smba, bmec.
 			E.g. to turn on cmt and turn off mba use:
 				rdt=cmt,!mba
 
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index a7e9aabff8c8..53fbc3acad81 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -700,6 +700,8 @@ enum {
 	RDT_FLAG_L2_CAT,
 	RDT_FLAG_L2_CDP,
 	RDT_FLAG_MBA,
+	RDT_FLAG_SMBA,
+	RDT_FLAG_BMEC,
 };
 
 #define RDT_OPT(idx, n, f)	\
@@ -723,6 +725,8 @@ static struct rdt_options rdt_options[]  __initdata = {
 	RDT_OPT(RDT_FLAG_L2_CAT,    "l2cat",	X86_FEATURE_CAT_L2),
 	RDT_OPT(RDT_FLAG_L2_CDP,    "l2cdp",	X86_FEATURE_CDP_L2),
 	RDT_OPT(RDT_FLAG_MBA,	    "mba",	X86_FEATURE_MBA),
+	RDT_OPT(RDT_FLAG_SMBA,	    "smba",	X86_FEATURE_SMBA),
+	RDT_OPT(RDT_FLAG_BMEC,	    "bmec",	X86_FEATURE_BMEC),
 };
 #define NUM_RDT_OPTIONS ARRAY_SIZE(rdt_options)
 



  parent reply	other threads:[~2022-09-27 20:26 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-27 20:25 [PATCH v5 00/12] x86/resctrl: Support for AMD QoS new features Babu Moger
2022-09-27 20:25 ` [PATCH v5 01/12] x86/cpufeatures: Add Slow Memory Bandwidth Allocation feature flag Babu Moger
2022-09-29 21:58   ` Reinette Chatre
2022-10-03 14:45     ` Moger, Babu
2022-10-03 15:24       ` Reinette Chatre
2022-10-03 15:35         ` Moger, Babu
2022-09-27 20:25 ` [PATCH v5 02/12] x86/resctrl: Add a new resource type RDT_RESOURCE_SMBA Babu Moger
2022-09-27 20:25 ` [PATCH v5 03/12] x86/cpufeatures: Add Bandwidth Monitoring Event Configuration feature flag Babu Moger
2022-09-27 20:25 ` Babu Moger [this message]
2022-09-27 20:26 ` [PATCH v5 05/12] x86/resctrl: Detect and configure Slow Memory Bandwidth allocation Babu Moger
2022-09-27 20:26 ` [PATCH v5 06/12] x86/resctrl: Introduce data structure to support monitor configuration Babu Moger
2022-09-27 22:25   ` Yu, Fenghua
2022-09-28 12:56     ` Moger, Babu
2022-09-27 20:26 ` [PATCH v5 07/12] x86/resctrl: Add sysfs interface to read mbm_total_bytes event configuration Babu Moger
2022-09-27 20:26 ` [PATCH v5 08/12] x86/resctrl: Add sysfs interface to read mbm_local_bytes " Babu Moger
2022-09-27 22:42   ` Yu, Fenghua
2022-09-28 14:43     ` Moger, Babu
2022-09-27 20:26 ` [PATCH v5 09/12] x86/resctrl: Add sysfs interface to write mbm_total_bytes " Babu Moger
2022-09-27 22:32   ` Yu, Fenghua
2022-09-28 12:58     ` Moger, Babu
2022-09-27 20:26 ` [PATCH v5 10/12] x86/resctrl: Add sysfs interface to write mbm_local_bytes " Babu Moger
2022-09-27 20:26 ` [PATCH v5 11/12] x86/resctrl: Replace smp_call_function_many() with on_each_cpu_mask() Babu Moger
2022-09-27 20:27 ` [PATCH v5 12/12] Documentation/x86: Update resctrl_ui.rst for new features Babu Moger
2022-09-28  4:25   ` Bagas Sanjaya
2022-09-28 15:23     ` Moger, Babu
2022-09-29  8:48       ` Bagas Sanjaya
2022-09-29 13:22         ` Moger, Babu
2022-09-29 13:33           ` Bagas Sanjaya
2022-09-29 22:10   ` Reinette Chatre
2022-10-03 14:28     ` Moger, Babu
2022-10-03 15:36       ` Reinette Chatre
2022-10-04 14:00         ` Moger, Babu
2022-10-04 16:15           ` Reinette Chatre
     [not found]             ` <a7766c60-5e2e-77f7-97ba-8a9628d3cca8@amd.com>
2022-10-04 19:05               ` Reinette Chatre
2022-10-07  8:33 ` [PATCH v5 00/12] x86/resctrl: Support for AMD QoS " Bagas Sanjaya
2022-10-07 15:51   ` Moger, Babu

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