diff options
| author | Michael Neuling <mikey@neuling.org> | 2013-02-13 16:21:35 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-02-15 16:58:52 +1100 |
| commit | 98ae22e15b430bfed5def01ac1a88ec9396284c8 (patch) | |
| tree | dc4119b4c88a094039206851c7f12f42b4ce75df /arch/powerpc/include/asm/reg.h | |
| parent | afc07701ced6463786d09a3b9baf894c1397e991 (diff) | |
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>
Diffstat (limited to 'arch/powerpc/include/asm/reg.h')
| -rw-r--r-- | arch/powerpc/include/asm/reg.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 7844c285f6e..eee2a60994b 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -797,7 +797,7 @@ * HV mode in which case it is HSPRG0 * * 64-bit server: - * - SPRG0 unused (reserved for HV on Power4) + * - SPRG0 scratch for TM recheckpoint/reclaim (reserved for HV on Power4) * - SPRG2 scratch for exception vectors * - SPRG3 CPU and NUMA node for VDSO getcpu (user visible) * - HSPRG0 stores PACA in HV mode |