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Date: Mon, 15 Nov 2010 12:06:08 +0100 From: Andi Kleen <andi@...stfloor.org> To: Stephane Eranian <eranian@...gle.com> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>, Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org, cjashfor@...ux.vnet.ibm.com, mingo@...e.hu, fweisbec@...il.com, Andi Kleen <ak@...ux.intel.com> Subject: Re: [PATCH 1/2] perf-events: Add support for supplementary event registers v2 On Mon, Nov 15, 2010 at 12:03:28PM +0100, Stephane Eranian wrote: > On Sat, Nov 13, 2010 at 11:34 AM, Peter Zijlstra <a.p.zijlstra@...llo.nl> wrote: > > On Sat, 2010-11-13 at 11:17 +0100, Andi Kleen wrote: > >> > That would assume a single event doesn't contain offcore and lbr, no? > >> > Currently the extra_reg thing assumes there's only one extra reg encoded > >> > in the config word. > >> > >> It would not be too hard to make it an array if that's needed. > > > > I don't think we want to go there anyway, one extra_reg per config value > > is fine. > > > I think offcore goes into .config, lbr goes into extra_reg. That should take > care of combinations as well. The context switch code needs extra_reg for any extra regs including offcore, I don't want to walk the event table for that. -Andi -- ak@...ux.intel.com -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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