CVSROOT: /cvs
Module name: src
Changes by: t...@cvs.openbsd.org 2021/08/11 12:31:48
Modified files:
sys/arch/amd64/amd64: k1x-pstate.c
Log message:
Do not read the status MSR before setting performance adjustment mode.
This makes modifying hw.setperf and apmd -A work on robert's laptop.
Previously, it would sometimes be impossible to set hw.setperf to any
value on this machine.
Keep a delay loop that waits for the MSR write to take effect before
setting hw.cpuspeed to the new value since this is apparently needed
for some pre-ryzen processors.
Debugging, initial diff & test by robert
ok brynet
