x86/intel_rdt/mbm: Basic counting of MBM events (total and local)

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Check CPUID bits for whether each of the MBM events is supported.
Allocate space for each RMID for each counter in each domain to save
previous MSR counter value and running total of data.
Create files in each of the monitor directories.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Vikas Shivappa <vikas.shivappa@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: ravi.v.shankar@intel.com
Cc: fenghua.yu@intel.com
Cc: peterz@infradead.org
Cc: eranian@google.com
Cc: vikas.shivappa@intel.com
Cc: ak@linux.intel.com
Cc: davidcc@google.com
Cc: reinette.chatre@intel.com
Link: http://lkml.kernel.org/r/1501017287-28083-27-git-send-email-vikas.shivappa@linux.intel.com

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Tony Luck 2017-07-25 14:14:45 -07:00 • committed by Thomas Gleixner

parent 895c663ece

commit 9f52425ba3

4 changed files with 86 additions and 2 deletions

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23

arch/x86/kernel/cpu/intel_rdt.c

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33

arch/x86/kernel/cpu/intel_rdt.h

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1

arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c

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31

arch/x86/kernel/cpu/intel_rdt_monitor.c

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