CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2022/10/23 18:56:33
Modified files:
sys/arch/amd64/amd64: tsc.c
sys/arch/amd64/include: specialreg.h
Log message:
tsc: AMD Family 17h, 19h: compute frequency from Core::X86::Msr:PStateDef
Compute the TSC frequency on AMD family 17h and 19h CPUs using the
PStateDef MSRs.
Link 1: https://marc.info/?l=openbsd-tech&m=166394236029484&w=2
Link 2: https://marc.info/?l=openbsd-tech&m=166446065916283&w=2
Test list: https://marc.info/?l=openbsd-tech&m=166646389821326&w=2
Reviewed by kettenis@ using the AMD documents cited in the comments.
Maybe reviewed by mlarkin@? I can't remember. He seemed supportive
of the idea at least.
ok kettenis@
