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From: Huang Rui <ray.huang@amd.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: "Borislav Petkov" <bp@suse.de>,
	"Andy Lutomirski" <luto@amacapital.net>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	"Len Brown" <lenb@kernel.org>,
	"John Stultz" <john.stultz@linaro.org>,
	"Frédéric Weisbecker" <fweisbec@gmail.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"x86@kernel.org" <x86@kernel.org>,
	"Fengguang Wu" <fengguang.wu@intel.com>,
	"Aaron Lu" <aaron.lu@intel.com>,
	"Suthikulpanit, Suravee" <Suravee.Suthikulpanit@amd.com>,
	"Li, Tony" <Tony.Li@amd.com>, "Xue, Ken" <Ken.Xue@amd.com>
Subject: Re: [PATCH v2 1/4] x86, mwaitt: add monitorx and mwaitx instruction
Date: Tue, 9 Jun 2015 17:48:56 +0800	[thread overview]
Message-ID: <20150609094856.GA17030@hr-slim.amd.com> (raw)
In-Reply-To: <20150609082306.GN3644@twins.programming.kicks-ass.net>

On Tue, Jun 09, 2015 at 04:23:06PM +0800, Peter Zijlstra wrote:
> On Tue, Jun 09, 2015 at 11:13:38AM +0800, Huang Rui wrote:
> > 
> > MWAITX ECX[1]: enable timer if set
> > MWAITX EBX[31:0]: max wait time expressed in SW P0 clocks
> > 
> > The software P0 frequency is the same as the TSC frequency.
> > 
> > Max timeout = EBX/(TSC frequency)
> 
> ^ that, would make a lovely comment for this v
> 

Any better suggestion? EBX * (TSC cycle) ? :)

Thanks,
Rui

  reply	other threads:[~2015-06-09  9:51 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-09  3:13 [PATCH v2 0/4] x86, mwaitt: introduce AMD mwaitt support Huang Rui
2015-06-09  3:13 ` [PATCH v2 1/4] x86, mwaitt: add monitorx and mwaitx instruction Huang Rui
2015-06-09  8:23   ` Peter Zijlstra
2015-06-09  9:48     ` Huang Rui [this message]
2015-06-09 10:05       ` Borislav Petkov
2015-06-09 16:44         ` Andy Lutomirski
2015-06-09 17:06           ` Borislav Petkov
2015-06-10  2:40             ` Huang Rui
2015-06-09  3:13 ` [PATCH v2 2/4] x86, mwaitt: make delay method configurable Huang Rui
2015-06-09  9:05   ` Borislav Petkov
2015-06-09  9:31     ` Peter Zijlstra
2015-06-09 10:03     ` Huang Rui
2015-06-09 10:08       ` Peter Zijlstra
2015-06-09 10:15         ` Huang Rui
2015-06-09 10:08       ` Borislav Petkov
2015-06-09  3:13 ` [PATCH v2 3/4] x86, mwaitt: introduce mwaix delay with a configurable timer Huang Rui
2015-06-09  8:31   ` Peter Zijlstra
2015-06-09 10:10     ` Huang Rui
2015-06-09  9:29   ` Peter Zijlstra
2015-06-09 10:59     ` Huang Rui
2015-06-09 16:46     ` Andy Lutomirski
2015-06-09 17:13       ` Peter Zijlstra
2015-06-09 17:55         ` Andy Lutomirski
2015-06-09 18:43           ` Borislav Petkov
2015-06-09 18:55             ` Andy Lutomirski
2015-06-12  8:42       ` Borislav Petkov
2015-06-12 23:15         ` Andy Lutomirski
2015-06-13  8:48           ` Borislav Petkov
2015-06-09  3:13 ` [PATCH v2 4/4] x86, mwaitt: add documents of delay option Huang Rui

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