linux-kernel - Re: [PATCH v3 0/3] Scorpion PMU support

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Message-ID: <20150302182424.GE7919@arm.com>
Date:	Mon, 2 Mar 2015 18:24:24 +0000
From:	Will Deacon <will.deacon@....com>
To:	Stephen Boyd <sboyd@...eaurora.org>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Mark Rutland <Mark.Rutland@....com>,
	Neil Leeder <nleeder@...eaurora.org>,
	Ashwin Chaugule <ashwinc@...eaurora.org>,
	Ashwin Chaugule <ashwin.chaugule@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Sheetal Sahasrabudhe <sheetals@...eaurora.org>
Subject: Re: [PATCH v3 0/3] Scorpion PMU support

On Sat, Feb 28, 2015 at 12:11:32AM +0000, Stephen Boyd wrote:
> These patches add support for the Scorpion PMU found on devices
> such as msm8660, qsd8x50, etc. The first patch is some groundwork
> to make functions more "generic". Even then we end up copying quite
> a bit of code from the Krait part into the Scorpion part with only
> subtle tweaks because two things happen:
> 
>  1. We gain another "region" register, L2LPM
>  2. The way to access the region registers are with different cp15 instructions
> 
> I'm not sure how to make this better, suggestions are welcome. The second
> patch is an optimization for an implementation defined register. The 
> final patch is the one that actually adds support for Scorpion.
> 
> Changes from v2:
>  * New patch 2
>  * Macros instead of an inline function for patch 1

Thanks, Stephen. I'll queue this for 4.1.

Will
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