[Bug 218143] platform/x86/intel/pmc: regression found in commit 804951203aa541ad6720c9726c173d18aeb3ab6b

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https://bugzilla.kernel.org/show_bug.cgi?id=218143

--- Comment #2 from James (jahutchinson99@xxxxxxxxxxxxxx) ---
Hi David,

I've been testing your patch for removing GBE LTR ignore and it works perfectly
on my Intel NUC 8i3BEH.

The CPU on NUC 8i3BEH is as follows:

$ lscpu

Architecture:            x86_64
  CPU op-mode(s):        32-bit, 64-bit
  Address sizes:         39 bits physical, 48 bits virtual
  Byte Order:            Little Endian
CPU(s):                  4
  On-line CPU(s) list:   0-3
Vendor ID:               GenuineIntel
  Model name:            Intel(R) Core(TM) i3-8109U CPU @ 3.00GHz
    CPU family:          6
    Model:               142
    Thread(s) per core:  2
    Core(s) per socket:  2
    Socket(s):           1
    Stepping:            10
    CPU(s) scaling MHz:  100%
    CPU max MHz:         3000.0000
    CPU min MHz:         400.0000
    BogoMIPS:            6000.00
    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 con
                         stant_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 pti ssbd ib
                         rs ibpb stibp tpr_shadow flexpriority ept vpid ept_ad
fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap
clflushopt intel_pt xsave
                         opt xsavec xgetbv1 xsaves dtherm arat pln pts hwp
hwp_notify hwp_act_window hwp_epp vnmi md_clear flush_l1d arch_capabilities
Virtualization features:
  Virtualization:        VT-x
Caches (sum of all):
  L1d:                   64 KiB (2 instances)
  L1i:                   64 KiB (2 instances)
  L2:                    512 KiB (2 instances)
  L3:                    4 MiB (1 instance)
NUMA:
  NUMA node(s):          1
  NUMA node0 CPU(s):     0-3
Vulnerabilities:
  Gather data sampling:  Mitigation; Microcode
  Itlb multihit:         KVM: Mitigation: VMX disabled
  L1tf:                  Mitigation; PTE Inversion; VMX conditional cache
flushes, SMT vulnerable
  Mds:                   Mitigation; Clear CPU buffers; SMT vulnerable
  Meltdown:              Mitigation; PTI
  Mmio stale data:       Mitigation; Clear CPU buffers; SMT vulnerable
  Retbleed:              Mitigation; IBRS
  Spec rstack overflow:  Not affected
  Spec store bypass:     Mitigation; Speculative Store Bypass disabled via
prctl
  Spectre v1:            Mitigation; usercopy/swapgs barriers and __user
pointer sanitization
  Spectre v2:            Mitigation; IBRS, IBPB conditional, STIBP conditional,
RSB filling, PBRSB-eIBRS Not affected
  Srbds:                 Mitigation; Microcode
  Tsx async abort:       Not affected

Do let me know if there's anything else you need me to test/verify.

Regards,
James.

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