linux-kernel - Re: [PATCH 0/4] Attempt to cleanup the HSW offcore bits

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Message-ID: <20141027122340.GU12538@two.firstfloor.org>
Date:	Mon, 27 Oct 2014 13:23:40 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	mingo@...nel.org, tglx@...utronix.de, ak@...ux.intel.com,
	eranian@...gle.com, dzickus@...hat.com, andi@...stfloor.org,
	jmario@...hat.com, acme@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/4] Attempt to cleanup the HSW offcore bits

On Thu, Oct 23, 2014 at 12:51:19PM +0200, Peter Zijlstra wrote:
> So Don asked about offcore and because I forgot I looked at the code and found
> the terrible mess Andi created with the HSW/BDW bits.
> 
> This series attempts to clean some of that up but seeing how it was all magic
> numbers 

All the bits are documented. The actual definitions are available
in the JSON offcore definitions at https://download.01.org/perfmon/

> and no reasons provided for the differences with existing uarchs this
> might just break things horribly.
> That said, if this does break things, fixes will have to explain things, so
> that's good.

I trust you won't submit or merge untested patches.

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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