From: Will Deacon <will.deacon@arm.com>
Date: Fri, 30 Apr 2010 10:34:26 +0000 (+0100)
Subject: ARM: 6071/1: perf-events: allow modules to query the number of hardware counters
X-Git-Tag: v2.6.35-rc1~503^2~2^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=929f5199448a67d41bb249d58815ef77bcd53622;p=pandora-kernel.git

ARM: 6071/1: perf-events: allow modules to query the number of hardware counters

For OProfile to initialise oprofilefs correctly, it needs to know
the number of counters it can represent.

This patch adds a function to the ARM perf-events backend to return
the number of hardware counters available for the current PMU.

Cc: Jamie Iles <jamie.iles@picochip.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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