commit 98ae22e15b430bfed5def01ac1a88ec9396284c8
author Michael Neuling <mikey@neuling.org> Wed Feb 13 16:21:35 2013 +0000
committer Benjamin Herrenschmidt <benh@kernel.crashing.org> Fri Feb 15 16:58:52 2013 +1100
tree dc4119b4c88a094039206851c7f12f42b4ce75df
parent afc07701ced6463786d09a3b9baf894c1397e991

powerpc: Add helper functions for transactional memory context switching

Here we add the helper functions to be used when context switching.  These
allow us to fully reclaim and recheckpoint a transaction.

We introduce a new paca field called tm_scratch to help us store away register
values when doing the low level tm reclaim register save.

Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>