Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: 答复: [PATCH] Delete some unusefull operations for centaur CPU/platform | Date | Mon, 12 Mar 2018 10:27:18 +0100 |
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On Monday, March 12, 2018 9:40:33 AM CET Ingo Molnar wrote: > > * David Wang <DavidWang@zhaoxin.com> wrote: > > > [David] pr->flags.has_cst means BIOS define valid C state table. And at lease > > define 2 entries. On all centaur platform which support C3, this condition is > > always true. > > > [David] Just as the following comment said, we need not execute WBINVD and > > ARB_DISABLE/ARB_ENABLE when entering C3 if bm_check=1 and bm_control=0. This > > logic is valid for all platform not only for Centaur, I think. > > Ok, fair enough!
Well, I still have this one queued up as cpuidle material.
I can drop it if you want to take it instead.
Thanks, Rafael
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