Messages in this thread |  | | From | Arnd Bergmann <> | 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.
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