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authorFenghua Yu <fenghua.yu@intel.com>2017-12-20 14:57:19 -0800
committerThomas Gleixner <tglx@linutronix.de>2018-01-18 09:33:30 +0100
commit0ff8e080b18d1d2dbe5c866d5f31c27ab806a785 (patch)
tree03880594f0103b45f18451cf5f13aafe053ea5ad /Documentation/x86
parent1d966eb4d6326a2521073174e9710713e9846e8b (diff)
x86/intel_rdt: Update documentation
With more flag bits in /proc/cpuinfo for RDT, it's better to classify the bits for readability. Some previously missing bits are added as well. Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com> Cc: "Tony Luck" <tony.luck@intel.com> Cc: Vikas" <vikas.shivappa@intel.com> Cc: Sai Praneeth" <sai.praneeth.prakhya@intel.com> Cc: Reinette" <reinette.chatre@intel.com> Link: https://lkml.kernel.org/r/1513810644-78015-2-git-send-email-fenghua.yu@intel.com
Diffstat (limited to 'Documentation/x86')
-rw-r--r--Documentation/x86/intel_rdt_ui.txt8
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/x86/intel_rdt_ui.txt b/Documentation/x86/intel_rdt_ui.txt
index 6851854cf69d..1ad77b1e3e79 100644
--- a/Documentation/x86/intel_rdt_ui.txt
+++ b/Documentation/x86/intel_rdt_ui.txt
@@ -7,7 +7,13 @@ Tony Luck <tony.luck@intel.com>
Vikas Shivappa <vikas.shivappa@intel.com>
This feature is enabled by the CONFIG_INTEL_RDT Kconfig and the
-X86 /proc/cpuinfo flag bits "rdt", "cqm", "cat_l3" and "cdp_l3".
+X86 /proc/cpuinfo flag bits:
+RDT (Resource Director Technology) Allocation - "rdt_a"
+CAT (Cache Allocation Technology) - "cat_l3", "cat_l2"
+CDP (Code and Data Prioritization ) - "cdp_l3"
+CQM (Cache QoS Monitoring) - "cqm_llc", "cqm_occup_llc"
+MBM (Memory Bandwidth Monitoring) - "cqm_mbm_total", "cqm_mbm_local"
+MBA (Memory Bandwidth Allocation) - "mba"
To use the feature mount the file system: