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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 v8 04/13] x86/resctrl: Include new features in command line options
Date: Fri, 4 Nov 2022 15:00:22 -0500	[thread overview]
Message-ID: <166759202231.3281208.4695877999050945787.stgit@bmoger-ubuntu> (raw)
In-Reply-To: <166759188265.3281208.11769277079826754455.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 a465d5242774..f3f0870144fb 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5190,7 +5190,7 @@
 	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 4b970e7192e8..e31c98e2fafc 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -659,6 +659,8 @@ enum {
 	RDT_FLAG_L2_CAT,
 	RDT_FLAG_L2_CDP,
 	RDT_FLAG_MBA,
+	RDT_FLAG_SMBA,
+	RDT_FLAG_BMEC,
 };
 
 #define RDT_OPT(idx, n, f)	\
@@ -682,6 +684,8 @@ 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:[~2022-11-04 20:00 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-04 19:59 [PATCH v8 00/13] Support for AMD QoS new features Babu Moger
2022-11-04 19:59 ` [PATCH v8 01/13] x86/cpufeatures: Add Slow Memory Bandwidth Allocation feature flag Babu Moger
2022-11-23 18:21   ` Yu, Fenghua
2022-11-23 23:09     ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 02/13] x86/resctrl: Add a new resource type RDT_RESOURCE_SMBA Babu Moger
2022-11-23  0:04   ` Reinette Chatre
2022-11-23 15:13     ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 03/13] x86/cpufeatures: Add Bandwidth Monitoring Event Configuration feature flag Babu Moger
2022-11-23  0:09   ` Reinette Chatre
2022-11-23 15:16     ` Moger, Babu
2022-11-23 18:17   ` Yu, Fenghua
2022-11-23 23:06     ` Moger, Babu
2022-11-04 20:00 ` Babu Moger [this message]
2022-11-23 18:26   ` [PATCH v8 04/13] x86/resctrl: Include new features in command line options Yu, Fenghua
2022-11-23 23:10     ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 05/13] x86/resctrl: Detect and configure Slow Memory Bandwidth Allocation Babu Moger
2022-11-23  0:12   ` Reinette Chatre
2022-11-23 15:17     ` Moger, Babu
2022-11-30 18:43     ` Moger, Babu
2022-11-30 20:07       ` Reinette Chatre
2022-11-30 20:40         ` Moger, Babu
2022-12-01  0:35           ` Reinette Chatre
2022-12-01 13:56             ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 06/13] x86/resctrl: Remove the init attribute for rdt_cpu_has() Babu Moger
2022-11-23  0:13   ` Reinette Chatre
2022-11-23 17:48     ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 07/13] x86/resctrl: Introduce data structure to support monitor configuration Babu Moger
2022-11-23  0:14   ` Reinette Chatre
2022-11-23 18:23     ` Moger, Babu
2022-11-23 19:05       ` Reinette Chatre
2022-11-23 21:46         ` Moger, Babu
2022-11-04 20:00 ` [PATCH v8 08/13] x86/resctrl: Add sysfs interface to read mbm_total_bytes_config Babu Moger
2022-11-23  0:19   ` Reinette Chatre
2022-11-23 18:35     ` Moger, Babu
2022-11-23 22:27       ` Reinette Chatre
2022-11-23 22:55         ` Moger, Babu
2022-11-04 20:01 ` [PATCH v8 09/13] x86/resctrl: Add sysfs interface to read mbm_local_bytes_config Babu Moger
2022-11-04 20:01 ` [PATCH v8 10/13] x86/resctrl: Add sysfs interface to write mbm_total_bytes_config Babu Moger
2022-11-07 10:21   ` Peter Newman
2022-11-07 18:50     ` Moger, Babu
2022-11-07 19:00     ` Moger, Babu
2022-11-22 23:43       ` Reinette Chatre
2022-11-23 21:44         ` Moger, Babu
2022-11-23 22:22           ` Reinette Chatre
2022-11-28 16:01             ` Moger, Babu
2022-11-23  0:22   ` Reinette Chatre
2022-11-23 22:44     ` Moger, Babu
2022-12-07 17:20   ` James Morse
2022-12-07 17:24     ` James Morse
2022-12-08  0:02     ` Moger, Babu
2022-12-13 17:55       ` James Morse
2022-12-13 23:46         ` Moger, Babu
2022-11-04 20:01 ` [PATCH v8 11/13] x86/resctrl: Add sysfs interface to write mbm_local_bytes_config Babu Moger
2022-11-04 20:01 ` [PATCH v8 12/13] x86/resctrl: Replace smp_call_function_many() with on_each_cpu_mask() Babu Moger
2022-11-04 20:01 ` [PATCH v8 13/13] Documentation/x86: Update resctrl.rst for new features Babu Moger
2022-11-23  0:26   ` Reinette Chatre
2022-11-23 23:02     ` Moger, Babu
2022-11-15 20:50 ` [PATCH v8 00/13] Support for AMD QoS " Moger, Babu
2022-11-15 21:07   ` Reinette Chatre
2022-11-15 21:34     ` Moger, Babu

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