From: Ingo Molnar <mingo@kernel.org>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: David Wang <DavidWang@zhaoxin.com>,
"len.brown@intel.com" <len.brown@intel.com>,
"pavel@ucw.cz" <pavel@ucw.cz>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"mingo@redhat.com" <mingo@redhat.com>,
"hpa@zytor.com" <hpa@zytor.com>,
"x86@kernel.org" <x86@kernel.org>,
"linux-pm@kernel.org" <linux-pm@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Bruce Chang (VAS)" <BruceChang@via-alliance.com>,
"Cooper Yan(BJ-RD)" <CooperYan@zhaoxin.com>,
"Qiyuan Wang(BJ-RD)" <QiyuanWang@zhaoxin.com>,
Benjamin Pan <BenjaminPan@viatech.com>,
Luke Lin <LukeLin@viacpu.com>,
"Tim Guo(BJ-RD)" <TimGuo@zhaoxin.com>,
"Cobe Chen(BJ-RD)" <CobeChen@zhaoxin.com>,
"Jiangbo Wang(BJ-RD)" <JiangboWang@zhaoxin.com>
Subject: Re: 答复: [PATCH] Delete some unusefull operations for centaur CPU/platform
Date: Mon, 12 Mar 2018 10:46:09 +0100 [thread overview]
Message-ID: <20180312094609.46sw3ojaa7sw3mee@gmail.com> (raw)
In-Reply-To: <1792259.nnz4czxE5K@aspire.rjw.lan>
* Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
> 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.
No need to drop it, it looks good to me!
Thanks,
Ingo
next prev parent reply other threads:[~2018-03-12 9:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-02 4:11 [PATCH] Delete some unusefull operations for centaur CPU/platform David Wang
2018-03-02 11:31 ` Rafael J. Wysocki
2018-03-04 9:31 ` Ingo Molnar
[not found] ` <efc93496e4ba46958b7b09eff54c2ce2@zhaoxin.com>
2018-03-12 8:40 ` 答复: " Ingo Molnar
2018-03-12 9:27 ` Rafael J. Wysocki
2018-03-12 9:46 ` Ingo Molnar [this message]
[not found] ` <0230c32412474e97bf7d2ef45cc64c4d@zhaoxin.com>
2018-03-29 11:03 ` 答复: " Rafael J. Wysocki
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