From: Luis Machado <luisgpm@linux.vnet.ibm.com>
Date: Wed, 23 Jul 2008 16:10:41 +0000 (+1000)
Subject: powerpc: BookE hardware watchpoint support
X-Git-Tag: v2.6.27-rc1~222^2~21
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d6a61bfc06d6f2248f3e75f208d64e794082013c;p=pandora-kernel.git

powerpc: BookE hardware watchpoint support

This patch implements support for HW based watchpoint via the
DBSR_DAC (Data Address Compare) facility of the BookE processors.

It does so by interfacing with the existing DABR breakpoint code
and adding the necessary bits and pieces for the new bits to
be properly set or cleared

Signed-off-by: Luis Machado <luisgpm@br.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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