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
next prev parent 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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