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From: Arnd Bergmann <arnd@arndb.de>
To: maynardj@us.ibm.com
Subject: Re: [Cbe-oss-dev] [RFC,
	PATCH 4/4] Add support to OProfile for profiling Cell BE SPUs --
	update
Date: Sat, 3 Feb 2007 08:40:05 +0100
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On Friday 02 February 2007 17:47, Maynard Johnson wrote:
> 
> > We also want to be able to profile the context switch code itself, which
> > means that we also need one event buffer associated with the kernel to
> > collect events that for a zero context_id.
> The hardware design precludes tracing both SPU and PPU simultaneously.
> 
I mean the SPU-side part of the context switch code, which you can find
in arch/powerpc/platforms/cell/spufs/spu_{save,restore}*.

This code is the one that runs when context_id == 0 is passed to the
callback.

	Arnd <><