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Date: Mon, 12 Mar 2018 09:40:33 +0100
From: Ingo Molnar <mingo@kernel.org>
To: David Wang <DavidWang@zhaoxin.com>
Cc: "rjw@rjwysocki.net" <rjw@rjwysocki.net>,
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Subject: Re: =?utf-8?B?562U5aSNOiBbUEFUQ0g=?= =?utf-8?Q?=5D?= Delete some
 unusefull operations for centaur CPU/platform
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* 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!

Thanks,

	Ingo