powerpc: Add helper functions for transactional memory context switching
authorMichael Neuling <mikey@neuling.org>
Wed, 13 Feb 2013 16:21:35 +0000 (16:21 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 15 Feb 2013 05:58:52 +0000 (16:58 +1100)
commit98ae22e15b430bfed5def01ac1a88ec9396284c8
treedc4119b4c88a094039206851c7f12f42b4ce75df
parentafc07701ced6463786d09a3b9baf894c1397e991
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>
arch/powerpc/include/asm/reg.h
arch/powerpc/include/asm/tm.h [new file with mode: 0644]
arch/powerpc/kernel/Makefile
arch/powerpc/kernel/tm.S [new file with mode: 0644]