git: kernel - Use the TSC as the cpu clock on AMD Ryzen or later

Matthew Dillon dillon at crater.dragonflybsd.org
Sun Mar 26 23:43:17 PDT 2017


commit 79c04d9c6ef6c8cf1780587129be432cd483d42e
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Sun Mar 26 23:15:35 2017 -0700

    kernel - Use the TSC as the cpu clock on AMD Ryzen or later
    
    * The TSC is usable as the cpu clock on AMD Ryzen or later, adjust
      the code for this.
    
    * Recode hw.tsc_cputimer_force to still run the TSC test, but then
      force use of the TSC for the cpu clock whether the test succeeds
      or fails.
    
    Suggested-by: Sephe

Summary of changes:
 sys/platform/pc64/isa/clock.c | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/79c04d9c6ef6c8cf1780587129be432cd483d42e


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