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

Saul Wold sgw at linux.intel.com
Thu Jun 23 12:55:50 PDT 2016


Bruce, I think we need these in 4.4 bxt-rebase also.

They are pending in Lenb's tree.

Sau!

On Thu, 2016-06-23 at 04:25 +0000, Yong, Jonathan wrote:
> 
> 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
> 


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