[
{
"PEBS": "1",
"EventCode": "0xF7",
"Counter": "0,1,2,3",
"UMask": "0x1",
"EventName": "FP_ASSIST.ALL",
"SampleAfterValue": "20000",
"BriefDescription": "X87 Floating point assists (Precise Event)"
},
{
"PEBS": "1",
"EventCode": "0xF7",
"Counter": "0,1,2,3",
"UMask": "0x4",
"EventName": "FP_ASSIST.INPUT",
"SampleAfterValue": "20000",
"BriefDescription": "X87 Floating poiint assists for invalid input value (Precise Event)"
},
{
"PEBS": "1",
"EventCode": "0xF7",
"Counter": "0,1,2,3",
"UMask": "0x2",
"EventName": "FP_ASSIST.OUTPUT",
"SampleAfterValue": "20000",
"BriefDescription": "X87 Floating point assists for invalid output value (Precise Event)"
},
{
"EventCode": "0x10",
"Counter": "0,1,2,3",
"UMask": "0x2",
"EventName": "FP_COMP_OPS_EXE.MMX",
"SampleAfterValue": "2000000",
"BriefDescription": "MMX Uops"
},
{
"EventCode": "0x10",
"Counter": "0,1,2,3",
"UMask": "0x80",
"EventName": "FP_COMP_OPS_EXE.SSE_DOUBLE_PRECISION",
"SampleAfterValue": "2000000",
"BriefDescription": "SSE* FP double precision Uops"
},
{
"EventCode": "0x10",
"Counter": "0,1,2,3",
"UMask": "0x4",
"EventName": "FP_COMP_OPS_EXE.SSE_FP",
"SampleAfterValue": "2000000",
"BriefDescription": "SSE and SSE2 FP Uops"
},
{
"EventCode": "0x10",
"Counter": "0,1,2,3",
"UMask": "0x10",
"EventName": "FP_COMP_OPS_EXE.SSE_FP_PACKED",
"SampleAfterValue": "2000000",
"BriefDescription": "SSE FP packed Uops"
},
{
"EventCode": "0x10",
"Counter": "0,1,2,3",
"UMask": "0x20",
"EventName": "FP_COMP_OPS_EXE.SSE_FP_SCALAR",
"SampleAfterValue": "2000000",
"BriefDescription": "SSE FP scalar Uops"
},
{
"EventCode": "0x10",
"Counter": "0,1,2,3",
"UMask": "0x40",
"EventName": "FP_COMP_OPS_EXE.SSE_SINGLE_PRECISION",
"SampleAfterValue": "2000000",
"BriefDescription": "SSE* FP single precision Uops"
},
{
"EventCode": "0x10",
"Counter": "0,1,2,3",
"UMask": "0x8",
"EventName": "FP_COMP_OPS_EXE.SSE2_INTEGER",
"SampleAfterValue": "2000000",
"BriefDescription": "SSE2 integer Uops"
},
{
"EventCode": "0x10",
"Counter": "0,1,2,3",
"UMask": "0x1",
"EventName": "FP_COMP_OPS_EXE.X87",
"SampleAfterValue": "2000000",
"BriefDescription": "Computational floating-point operations executed"
},
{
"EventCode": "0xCC",
"Counter": "0,1,2,3",
"UMask": "0x3",
"EventName": "FP_MMX_TRANS.ANY",
"SampleAfterValue": "2000000",
"BriefDescription": "All Floating Point to and from MMX transitions"
},
{
"EventCode": "0xCC",
"Counter": "0,1,2,3",
"UMask": "0x1",
"EventName": "FP_MMX_TRANS.TO_FP",
"SampleAfterValue": "2000000",
"BriefDescription": "Transitions from MMX to Floating Point instructions"
},
{
"EventCode": "0xCC",
"Counter": "0,1,2,3",
"UMask": "0x2",
"EventName": "FP_MMX_TRANS.TO_MMX",
"SampleAfterValue": "2000000",
"BriefDescription": "Transitions from Floating Point to MMX instructions"
},
{
"EventCode": "0x12",
"Counter": "0,1,2,3",
"UMask": "0x4",
"EventName": "SIMD_INT_128.PACK",
"SampleAfterValue": "200000",
"BriefDescription": "128 bit SIMD integer pack operations"
},
{
"EventCode": "0x12",
"Counter": "0,1,2,3",
"UMask": "0x20",
"EventName": "SIMD_INT_128.PACKED_ARITH",
"SampleAfterValue": "200000",
"BriefDescription": "128 bit SIMD integer arithmetic operations"
},
{
"EventCode": "0x12",
"Counter": "0,1,2,3",
"UMask": "0x10",
"EventName": "SIMD_INT_128.PACKED_LOGICAL",
"SampleAfterValue": "200000",
"BriefDescription": "128 bit SIMD integer logical operations"
},
{
"EventCode": "0x12",
"Counter": "0,1,2,3",
"UMask": "0x1",
"EventName": "SIMD_INT_128.PACKED_MPY",
"SampleAfterValue": "200000",
"BriefDescription": "128 bit SIMD integer multiply operations"
},
{
"EventCode": "0x12",
"Counter": "0,1,2,3",
"UMask": "0x2",
"EventName": "SIMD_INT_128.PACKED_SHIFT",
"SampleAfterValue": "200000",
"BriefDescription": "128 bit SIMD integer shift operations"
},
{
"EventCode": "0x12",
"Counter": "0,1,2,3",
"UMask": "0x40",
"EventName": "SIMD_INT_128.SHUFFLE_MOVE",
"SampleAfterValue": "200000",
"BriefDescription": "128 bit SIMD integer shuffle/move operations"
},
{
"EventCode": "0x12",
"Counter": "0,1,2,3",
"UMask": "0x8",
"EventName": "SIMD_INT_128.UNPACK",
"SampleAfterValue": "200000",
"BriefDescription": "128 bit SIMD integer unpack operations"
},
{
"EventCode": "0xFD",
"Counter": "0,1,2,3",
"UMask": "0x4",
"EventName": "SIMD_INT_64.PACK",
"SampleAfterValue": "200000",
"BriefDescription": "SIMD integer 64 bit pack operations"
},
{
"EventCode": "0xFD",
"Counter": "0,1,2,3",
"UMask": "0x20",
"EventName": "SIMD_INT_64.PACKED_ARITH",
"SampleAfterValue": "200000",
"BriefDescription": "SIMD integer 64 bit arithmetic operations"
},
{
"EventCode": "0xFD",
"Counter": "0,1,2,3",
"UMask": "0x10",
"EventName": "SIMD_INT_64.PACKED_LOGICAL",
"SampleAfterValue": "200000",
"BriefDescription": "SIMD integer 64 bit logical operations"
},
{
"EventCode": "0xFD",
"Counter": "0,1,2,3",
"UMask": "0x1",
"EventName": "SIMD_INT_64.PACKED_MPY",
"SampleAfterValue": "200000",
"BriefDescription": "SIMD integer 64 bit packed multiply operations"
},
{
"EventCode": "0xFD",
"Counter": "0,1,2,3",
"UMask": "0x2",
"EventName": "SIMD_INT_64.PACKED_SHIFT",
"SampleAfterValue": "200000",
"BriefDescription": "SIMD integer 64 bit shift operations"
},
{
"EventCode": "0xFD",
"Counter": "0,1,2,3",
"UMask": "0x40",
"EventName": "SIMD_INT_64.SHUFFLE_MOVE",
"SampleAfterValue": "200000",
"BriefDescription": "SIMD integer 64 bit shuffle/move operations"
},
{
"EventCode": "0xFD",
"Counter": "0,1,2,3",
"UMask": "0x8",
"EventName": "SIMD_INT_64.UNPACK",
"SampleAfterValue": "200000",
"BriefDescription": "SIMD integer 64 bit unpack operations"
}
]is how Linux enables HWP, booting with
"intel_pstate=disable"
will run in acpi-cpufreq/ondemand legacy p-state mode.
Or second, the "performance" governor can be used with intel_pstate,
which will modify HWP.EPP to 0.
Or third, starting in 4.10, the
/sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference
attribute in can be updated from "balance_power" to "performance".
Or fourth, apply this patch, which fixes the erroneous setting of
MSR_IA32_POWER_CTL BIT_EE on this model, allowing the default
configuration to function as designed.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Cc: 4.6+ <stable@vger.kernel.org> # 4.6+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>