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x86/intel_rdt: Update documentation

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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 <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: "Ravi V Shankar" <[email protected]>
Cc: "Tony Luck" <[email protected]>
Cc: Vikas" <[email protected]>
Cc: Sai Praneeth" <[email protected]>
Cc: Reinette" <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
This commit is contained in:
Fenghua Yu 2017-12-20 14:57:19 -08:00 • committed by Thomas Gleixner
commit 0ff8e080b1
1 changed files with 7 additions and 1 deletions
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8
Documentation/x86/intel_rdt_ui.txt
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@ -7,7 +7,13 @@ Tony Luck <[email protected]>
Vikas Shivappa <[email protected]>
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: