Public bug reported:
Description:
Cometlake -U 6+2 is using a different CPU Model number: DEC 166, HEX: A6
We need the intel_rapl patch to support CML-U6+2
We read the msr, which show the values:
root@p-cml02~ # ./rdmsr 0x639
7ed34e
root@p-cml02~ # ./rdmsr 0x611
5ce685
Domain Model-Specific Register Powercap Name Turbostat Column
Package 0x611 package PkgWatt
Power Plane 0 (PP0), Processor Cores 0x639 core CorWatt
While in linux OS, there is no rapl driver loaded, no any sysfs files
for RAPL.
root@p-cml02~ # cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 166
model name : Intel(R) Core(TM) i7-10710U CPU @ 1.10GHz
stepping : 0
microcode : 0xb0
cpu MHz : 2301.349
cache size : 12288 KB
physical id : 0
siblings : 12
core id : 0
cpu cores : 6
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 22
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36
clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm
constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc
cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma
cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes
xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb invpcid_single
ssbd ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad
fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap
clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp
hwp_notify hwp_act_window hwp_epp md_clear flush_l1d arch_capabilities
bugs : spectre_v1 spectre_v2 spec_store_bypass
bogomips : 3200.00
clflush size : 64
cache_alignment : 64
address sizes : 39 bits physical, 48 bits virtual
Target Kernel: 5.5
Target Release: 20.10
** Affects: intel
Importance: Undecided
Status: Fix Committed
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: intel-kernel-20.10
** Also affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1880496
Title:
[CML-U62] Need enable intel_rapl patch support for Comet lake- U 6+2
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