[linux-yocto] [PATCH 0/2] Use CPUID to estimate clock frequency for linux-yocto-4.1

Yong, Jonathan jonathan.yong at intel.com
Wed Jun 22 21:25:46 PDT 2016


This patch allows clock frequencies to be calibrated if TSC and CPU
frequencies differ. This is not in the latest kernel tree yet, so this
should go into standard/intel/base.

Tested with Apollo Lake.

Bin Gao (1):
  x86 tsc: enumerate BXT tsc_khz via CPUID

Len Brown (1):
  x86 tsc: enumerate SKL cpu_khz and tsc_khz via CPUID

 arch/x86/include/asm/tsc.h      |  1 +
 arch/x86/include/asm/x86_init.h |  4 +-
 arch/x86/kernel/tsc.c           | 91 +++++++++++++++++++++++++++++++++++++----
 arch/x86/kernel/x86_init.c      |  1 +
 4 files changed, 89 insertions(+), 8 deletions(-)

-- 
2.7.3



More information about the linux-yocto mailing list