tree fbae9902aa4103a9e86d06f841d580f24682e7b3
parent 53ff09422e5e7a6d6198b767c8f494e43ec8e3ae
author Stuart Menefy <stuart.menefy@st.com> 1196406756 +0900
committer Paul Mundt <lethal@linux-sh.org> 1201493938 +0900

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>