diff options
| author | Vikas Shivappa <vikas.shivappa@linux.intel.com> | 2017-04-08 03:33:57 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-04-14 17:10:09 +0300 |
| commit | 64e8ed3d4a6dcd6139a869a3e760e625cb0d3022 (patch) | |
| tree | b5b23d1788dc97344b32215fa801a2615ddd9498 /arch/x86/kernel/cpu/intel_rdt.c | |
| parent | c6ea67de52c29a8b45e5fc7569fc4336bfd557b0 (diff) | |
| download | linux-64e8ed3d4a6dcd6139a869a3e760e625cb0d3022.tar.xz | |
x86/intel_rdt/mba: Add schemata file support for MBA
Add support to update the MBA bandwidth values for the domains via the
schemata file.
- Verify that the bandwidth value is valid
- Round to the next control step depending on the bandwidth granularity of
the hardware
- Convert the bandwidth to delay values and write the delay values to
the corresponding domain PQOS_MSRs.
[ tglx: Massaged changelog ]
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/1491611637-20417-9-git-send-email-vikas.shivappa@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/cpu/intel_rdt.c')
| -rw-r--r-- | arch/x86/kernel/cpu/intel_rdt.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/intel_rdt.c b/arch/x86/kernel/cpu/intel_rdt.c index 1e410ea6905e..731f70ae57d0 100644 --- a/arch/x86/kernel/cpu/intel_rdt.c +++ b/arch/x86/kernel/cpu/intel_rdt.c @@ -116,6 +116,8 @@ struct rdt_resource rdt_resources_all[] = { .msr_base = IA32_MBA_THRTL_BASE, .msr_update = mba_wrmsr, .cache_level = 3, + .parse_ctrlval = parse_bw, + .format_str = "%d=%*d", }, }; |