diff options
| author | Vikas Shivappa <vikas.shivappa@linux.intel.com> | 2017-04-07 17:33:55 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-04-14 16:10:08 +0200 |
| commit | db69ef65636e6da135680d75d8646bd7e76136bc (patch) | |
| tree | f5fc06fe16b83ee28d2e7b6ab2bdc6652e4ddd17 /arch/x86/include | |
| parent | 6a507a6ad8a6955a7d57255377edcef576823749 (diff) | |
x86/intel_rdt/mba: Add info directory files for Memory Bandwidth Allocation
The files in the info directory for MBA are as follows:
num_closids
The maximum number of CLOSids available for MBA
min_bandwidth
The minimum memory bandwidth percentage value
bandwidth_gran
The granularity of the bandwidth control in percent for the
particular CPU SKU. Intermediate values entered are rounded off
to the previous control step available. Available bandwidth
control steps are minimum_bandwidth + N * bandwidth_gran.
delay_linear
When set, the OS writes a linear percentage based value to the
control MSRs ranging from minimum_bandwidth to 100 percent.
This value is informational and has no influence on the values
written to the schemata files. The values written to the
schemata are always bandwidth percentage that is requested.
Signed-off-by: Vikas Shivappa <vikas.shivappa@linux.intel.com>
Cc: ravi.v.shankar@intel.com
Cc: tony.luck@intel.com
Cc: fenghua.yu@intel.com
Cc: vikas.shivappa@intel.com
Link: http://lkml.kernel.org/r/1491611637-20417-7-git-send-email-vikas.shivappa@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/intel_rdt.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/intel_rdt.h b/arch/x86/include/asm/intel_rdt.h index b0f0a600c739..167fe10f00b9 100644 --- a/arch/x86/include/asm/intel_rdt.h +++ b/arch/x86/include/asm/intel_rdt.h @@ -174,6 +174,7 @@ struct rdt_resource { }; void rdt_get_cache_infofile(struct rdt_resource *r); +void rdt_get_mba_infofile(struct rdt_resource *r); extern struct mutex rdtgroup_mutex; |