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authorThomas Gleixner <tglx@linutronix.de>2016-11-07 11:58:12 +0100
committerThomas Gleixner <tglx@linutronix.de>2016-11-07 12:20:53 +0100
commit458b0d6e751b04216873a5ee9c899be2cd2f80f3 (patch)
treec4d6433deb4133fd9b0de5b288916b72f88eaee6 /Documentation
parent53a114a69095eeb0e15d04c2a82358b3192f88df (diff)
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x86/intel_rdt: Add info files to Documentation
The content of the directories and files in the info directory of the resctrl filesystem are not documented. Add the missing bits and pieces. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Shaohua Li <shli@fb.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/x86/intel_rdt_ui.txt19
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/x86/intel_rdt_ui.txt b/Documentation/x86/intel_rdt_ui.txt
index 3b0ebd4cf423..d918d268cd72 100644
--- a/Documentation/x86/intel_rdt_ui.txt
+++ b/Documentation/x86/intel_rdt_ui.txt
@@ -17,6 +17,25 @@ mount options are:
"cdp": Enable code/data prioritization in L3 cache allocations.
+Info directory
+--------------
+
+The 'info' directory contains information about the enabled
+resources. Each resource has its own subdirectory. The subdirectory
+names reflect the resource names. Each subdirectory contains the
+following files:
+
+"num_closids": The number of CLOSIDs which are valid for this
+ resource. The kernel uses the smallest number of
+ CLOSIDs of all enabled resources as limit.
+
+"cbm_mask": The bitmask which is valid for this resource. This
+ mask is equivalent to 100%.
+
+"min_cbm_bits": The minimum number of consecutive bits which must be
+ set when writing a mask.
+
+
Resource groups
---------------
Resource groups are represented as directories in the resctrl file