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| author | Vikas Shivappa <vikas.shivappa@linux.intel.com> | 2017-07-26 00:14:30 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-08-01 23:41:22 +0300 |
| commit | d4ab33201029913b594ae785a9665f45040396ab (patch) | |
| tree | 4133bc4f9373ac651392a1ccf0738e179ffeec28 /arch/x86/kernel/cpu/intel_rdt.h | |
| parent | 5dc1d5c6bac2cfe3420cf353dfb0ef2e543f7c10 (diff) | |
| download | linux-d4ab33201029913b594ae785a9665f45040396ab.tar.xz | |
x86/intel_rdt/cqm: Add info files for RDT monitoring
Add info directory files specific to RDT monitoring.
num_rmids:
The number of RMIDs which are valid for the resource.
mon_features:
Lists the monitoring events if monitoring is enabled for the
resource.
max_threshold_occupancy:
This is specific to llc_occupancy monitoring and is used to
determine if an RMID can be reused. Provides an upper bound on the
threshold and is shown to the user in bytes though the internal
value will be rounded to the scaling factor supported by the h/w.
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: 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/1501017287-28083-12-git-send-email-vikas.shivappa@linux.intel.com
Diffstat (limited to 'arch/x86/kernel/cpu/intel_rdt.h')
| -rw-r--r-- | arch/x86/kernel/cpu/intel_rdt.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/intel_rdt.h b/arch/x86/kernel/cpu/intel_rdt.h index aecbe77c8354..4051f5e2d5fc 100644 --- a/arch/x86/kernel/cpu/intel_rdt.h +++ b/arch/x86/kernel/cpu/intel_rdt.h @@ -68,10 +68,13 @@ struct rdtgroup { #define RFTYPE_INFO BIT(0) #define RFTYPE_BASE BIT(1) #define RF_CTRLSHIFT 4 +#define RF_MONSHIFT 5 #define RFTYPE_CTRL BIT(RF_CTRLSHIFT) +#define RFTYPE_MON BIT(RF_MONSHIFT) #define RFTYPE_RES_CACHE BIT(8) #define RFTYPE_RES_MB BIT(9) #define RF_CTRL_INFO (RFTYPE_INFO | RFTYPE_CTRL) +#define RF_MON_INFO (RFTYPE_INFO | RFTYPE_MON) #define RF_CTRL_BASE (RFTYPE_BASE | RFTYPE_CTRL) /* List of all resource groups */ @@ -264,6 +267,11 @@ enum { r++) \ if (r->alloc_enabled) +#define for_each_mon_enabled_rdt_resource(r) \ + for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\ + r++) \ + if (r->mon_enabled) + /* CPUID.(EAX=10H, ECX=ResID=1).EAX */ union cpuid_0x10_1_eax { struct { |