Subject: [PATCH 5/5] arm/perfevents: implement perf event support for ARMv6

From: [email-masked] (Peter Zijlstra)
Date: Tue, 15 Dec 2009 16:30:13 +0100

On Tue, 2009-12-15 at 15:19 +0000, Jamie Iles wrote:
> Another problem with mpcore support is that
> with the v6 performance counters, you can't disable a single event
> counter. 

Can you program them with a non-counting event?

On x86 there's various ways of doing that, either by selecting an event
that simply doesn't count (cache-misses with 0 MESI mask), or by telling
it to mask both user and kernel event.