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>,
<christophe.leroy@csgroup.eu>, <jarkko@kernel.org>,
<adrian.hunter@intel.com>, <quic_jiles@quicinc.com>,
<peternewman@google.com>
Subject: [PATCH v10 05/13] x86/resctrl: Include new features in command line options
Date: Thu, 22 Dec 2022 17:31:19 -0600 [thread overview]
Message-ID: <20221222233127.910538-6-babu.moger@amd.com> (raw)
In-Reply-To: <20221222233127.910538-1-babu.moger@amd.com>
Add the command line options to enable or disable the new resctrl features.
smba : Slow Memory Bandwidth Allocation
bmec : Bandwidth Monitor Event Configuration.
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
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 5a0eff3231c6..1935b0d9bd9a 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -5199,7 +5199,7 @@
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 f6af3ac1ef20..10a8c9d96f32 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)
--
2.34.1
next prev parent reply other threads:[~2022-12-22 23:32 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-22 23:31 [PATCH v10 00/13] x86/resctrl: Support for AMD QoS new features Babu Moger
2022-12-22 23:31 ` [PATCH v10 01/13] x86/resctrl: Replace smp_call_function_many() with on_each_cpu_mask() Babu Moger
2023-01-05 0:28 ` Reinette Chatre
2023-01-05 15:48 ` Moger, Babu
2022-12-22 23:31 ` [PATCH v10 02/13] x86/cpufeatures: Add Slow Memory Bandwidth Allocation feature flag Babu Moger
2022-12-22 23:31 ` [PATCH v10 03/13] x86/resctrl: Add a new resource type RDT_RESOURCE_SMBA Babu Moger
2022-12-22 23:31 ` [PATCH v10 04/13] x86/cpufeatures: Add Bandwidth Monitoring Event Configuration feature flag Babu Moger
2022-12-22 23:31 ` Babu Moger [this message]
2022-12-22 23:31 ` [PATCH v10 06/13] x86/resctrl: Detect and configure Slow Memory Bandwidth Allocation Babu Moger
2022-12-22 23:31 ` [PATCH v10 07/13] x86/resctrl: Add __init attribute to rdt_get_mon_l3_config() Babu Moger
2023-01-05 0:28 ` Reinette Chatre
2023-01-05 15:48 ` Moger, Babu
2022-12-22 23:31 ` [PATCH v10 08/13] x86/resctrl: Support monitor configuration Babu Moger
2022-12-22 23:31 ` [PATCH v10 09/13] x86/resctrl: Add interface to read mbm_total_bytes_config Babu Moger
2023-01-05 0:29 ` Reinette Chatre
2023-01-05 15:49 ` Moger, Babu
2022-12-22 23:31 ` [PATCH v10 10/13] x86/resctrl: Add interface to read mbm_local_bytes_config Babu Moger
2022-12-22 23:31 ` [PATCH v10 11/13] x86/resctrl: Add interface to write mbm_total_bytes_config Babu Moger
2023-01-05 0:29 ` Reinette Chatre
2023-01-05 16:04 ` Moger, Babu
2023-01-05 17:49 ` Reinette Chatre
2023-01-05 19:59 ` Moger, Babu
2022-12-22 23:31 ` [PATCH v10 12/13] x86/resctrl: Add interface to write mbm_local_bytes_config Babu Moger
2022-12-22 23:31 ` [PATCH v10 13/13] Documentation/x86: Update resctrl.rst for new features Babu Moger
2023-01-05 0:30 ` Reinette Chatre
2023-01-05 16:06 ` Moger, Babu
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