linux-kernel - Re: [PATCH 09/15] x86, amd: add accessor for number of cores per compute unit

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Message-ID: <20150831145707.GG16853@twins.programming.kicks-ass.net>
Date:	Mon, 31 Aug 2015 16:57:07 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	Borislav Petkov <bp@...en8.de>, Ingo Molnar <mingo@...nel.org>,
	Huang Rui <ray.huang@....com>, Borislav Petkov <bp@...e.de>,
	Jean Delvare <jdelvare@...e.de>,
	Andy Lutomirski <luto@...capital.net>,
	Andreas Herrmann <herrmann.der.user@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <lenb@...nel.org>,
	John Stultz <john.stultz@...aro.org>,
	Frédéric Weisbecker <fweisbec@...il.com>,
	lm-sensors@...sensors.org, linux-kernel@...r.kernel.org,
	x86@...nel.org,
	Andreas Herrmann <herrmann.der.user@...glemail.com>,
	Aravind Gopalakrishnan <Aravind.Gopalakrishnan@....com>,
	Fengguang Wu <fengguang.wu@...el.com>,
	Aaron Lu <aaron.lu@...el.com>, Tony Li <tony.li@....com>
Subject: Re: [PATCH 09/15] x86, amd: add accessor for number of cores per
 compute unit

On Mon, Aug 31, 2015 at 06:53:58AM -0700, Guenter Roeck wrote:

> What does that have to do with 'hwmon' ? The current implementation in the
> driver may not be a good idea, and maybe for good reasons; I can not
> comment on that. However, you concluded from that implementation that
> hwmon, the subsystem, would not be able to support 'much finer grained
> measurements than system wide'. I would like to understand how you reached
> that conclusion.

Purely going on what this driver does here. I assumed it was
representative of things, if not then good.
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