linux-kernel - [PATCH] x86/intel_rdt: Classify /proc/cpuinfo flag bits and add missing bits in documentation

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Message-Id: <1512779102-45295-1-git-send-email-fenghua.yu@intel.com>
Date:   Fri,  8 Dec 2017 16:25:02 -0800
From:   "Fenghua Yu" <fenghua.yu@...el.com>
To:     "Thomas Gleixner" <tglx@...utronix.de>,
        "H. Peter Anvin" <h.peter.anvin@...el.com>,
        "Ingo Molnar" <mingo@...e.hu>, "Tony Luck" <tony.luck@...el.com>,
        "Vikas Shivappa" <vikas.shivappa@...ux.intel.com>,
        "Ravi V Shankar" <ravi.v.shankar@...el.com>,
        "Chatre, Reinette" <reinette.chatre@...el.com>,
        "Sai Prakhya" <sai.praneeth.prakhya@...el.com>,
        "x86" <x86@...nel.org>,
        "linux-kernel" <linux-kernel@...r.kernel.org>
Cc:     Fenghua Yu <fenghua.yu@...el.com>
Subject: [PATCH] x86/intel_rdt: Classify /proc/cpuinfo flag bits and add missing bits in documentation

From: Fenghua Yu <fenghua.yu@...el.com>

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@...el.com>
---
 Documentation/x86/intel_rdt_ui.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/x86/intel_rdt_ui.txt b/Documentation/x86/intel_rdt_ui.txt
index 6851854..9b62738 100644
--- a/Documentation/x86/intel_rdt_ui.txt
+++ b/Documentation/x86/intel_rdt_ui.txt
@@ -7,7 +7,12 @@ Tony Luck <tony.luck@...el.com>
 Vikas Shivappa <vikas.shivappa@...el.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", "cdp_l3", "cat_l2"
+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:
 
-- 
1.8.3.1