diff options
| author | Michael Neuling <mikey@neuling.org> | 2013-02-13 16:21:34 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-02-15 16:58:51 +1100 |
| commit | afc07701ced6463786d09a3b9baf894c1397e991 (patch) | |
| tree | 5f6cccb458938a3d446982ab0e51655957c1fd53 /arch/powerpc/kernel/entry_64.S | |
| parent | 97a0aac9b844a8bcfebb6805322998f8ca4db9dc (diff) | |
powerpc: Add transactional memory paca scratch register to show_regs
Add transactional memory paca scratch register to show_regs. This is useful
for debugging.
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/kernel/entry_64.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_64.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 9ae8451bbc8..612ea130c5d 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -785,6 +785,10 @@ fast_exception_return: andc r4,r4,r0 /* r0 contains MSR_RI here */ mtmsrd r4,1 +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM + /* TM debug */ + std r3, PACATMSCRATCH(r13) /* Stash returned-to MSR */ +#endif /* * r13 is our per cpu area, only restore it if we are returning to * userspace the value stored in the stack frame may belong to |