From: Stuart Menefy <stuart.menefy@st.com>
Date: Fri, 30 Nov 2007 07:12:36 +0000 (+0900)
Subject: sh: GUSA atomic rollback support.
X-Git-Tag: v2.6.25-rc1~1169^2~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1efe4ce3ca126da77e450d5a83f7201949d76f62;p=pandora-kernel.git

sh: GUSA atomic rollback support.

This implements kernel-level atomic rollback built on top of gUSA,
as an alternative non-IRQ based atomicity method. This is generally
a faster method for platforms that are lacking the LL/SC pairs that
SH-4A and later use, and is only supportable on legacy cores.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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