On Fri, Feb 24, 2017 at 9:32 PM, Jia-Shiun Li <jiash...@gmail.com> wrote:
> On Fri, Feb 24, 2017 at 7:45 PM, Konstantin Belousov <kostik...@gmail.com> > wrote: > >> On Fri, Feb 24, 2017 at 12:15:26PM +0800, Jia-Shiun Li wrote: >> > Tested working on E7400 against r313909. And changing timecounter >> from/to >> > TSC >> > correctly enables/disables C2. >> > >> > The latter part cpu_disable_c2_sleep++ is not needed. When >> > init_TSC_tc() got called timecounter is not yet tsc_timecounter. >> > inittimecounter() later will do the work calling tc_windup(). >> > >> >> You mean, just this >> - if (cpu_deepest_sleep >= 2 && cpu_vendor_id == CPU_VENDOR_INTEL && >> + if (cpu_vendor_id == CPU_VENDOR_INTEL && >> is enough to fix the issue ? If yes, we can remove the cpu_deepest_sleep >> variable. This is John' observation, I think he would prefer to prepare >> the patch. >> > > Correct. That's enough. > > Since that's simple enough... patch attached. Tested against r313909 too. -Jia-Shiun.
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