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| author | Vikas Shivappa <vikas.shivappa@linux.intel.com> | 2018-04-20 15:36:19 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-05-19 13:16:44 +0200 |
| commit | 8205a078ba7819c23558e31af4b3bda04d9b3bae (patch) | |
| tree | b3ff6b5b6c4a909365d215f01588ec0083eaecb8 /arch/x86/kernel/cpu/intel_rdt.c | |
| parent | 1bd2a63b4f0deefe745aa0fd969c07b2eb9ee99e (diff) | |
| download | linux-8205a078ba7819c23558e31af4b3bda04d9b3bae.tar.gz linux-8205a078ba7819c23558e31af4b3bda04d9b3bae.tar.bz2 linux-8205a078ba7819c23558e31af4b3bda04d9b3bae.zip | |
x86/intel_rdt/mba_sc: Add schemata support
Currently when user updates the "schemata" with new MBA percentage
values, kernel writes the corresponding bandwidth percentage values to
the IA32_MBA_THRTL_MSR.
When MBA is expressed in MBps, the schemata format is changed to have the
per package memory bandwidth in MBps instead of being specified in
percentage. Do not write the IA32_MBA_THRTL_MSRs when the schemata is
updated as that is handled separately.
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: tony.luck@intel.com
Cc: fenghua.yu@intel.com
Cc: vikas.shivappa@intel.com
Cc: ak@linux.intel.com
Cc: hpa@zytor.com
Link: https://lkml.kernel.org/r/1524263781-14267-5-git-send-email-vikas.shivappa@linux.intel.com
Diffstat (limited to 'arch/x86/kernel/cpu/intel_rdt.c')
| -rw-r--r-- | arch/x86/kernel/cpu/intel_rdt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/intel_rdt.c b/arch/x86/kernel/cpu/intel_rdt.c index 8c09e9db2fc6..ad03d975883e 100644 --- a/arch/x86/kernel/cpu/intel_rdt.c +++ b/arch/x86/kernel/cpu/intel_rdt.c @@ -179,7 +179,7 @@ struct rdt_resource rdt_resources_all[] = { .msr_update = mba_wrmsr, .cache_level = 3, .parse_ctrlval = parse_bw, - .format_str = "%d=%*d", + .format_str = "%d=%*u", .fflags = RFTYPE_RES_MB, }, }; |