On 10/19/2013 06:43 AM, Scott Wood wrote:

On Thu, 2013-06-20 at 18:28 +0800, Tiejun Chen wrote:

quoted

We need to store thread info to these exception thread info like something
we already did for PPC32.

Signed-off-by: Tiejun Chen <redacted>
---
  arch/powerpc/kernel/exceptions-64e.S |   15 +++++++++++++++
  1 file changed, 15 insertions(+)

diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index 4d8e57f..07cf657 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S

@@ -67,6 +67,18 @@
  	std	r10,PACA_##level##_STACK(r13);
  #endif

+/* Store something to exception thread info */
+#define	BOOK3E_STORE_EXC_LEVEL_THEAD_INFO(type)					\
+	ld	r14,PACAKSAVE(r13);						\
+	CURRENT_THREAD_INFO(r14, r14);						\
+	CURRENT_THREAD_INFO(r15, r1);						\
+	ld	r10,TI_FLAGS(r14);		     				\
+	std	r10,TI_FLAGS(r15);			     			\
+	ld	r10,TI_PREEMPT(r14);		     				\
+	std	r10,TI_PREEMPT(r15);		     				\
+	ld	r10,TI_TASK(r14);			     			\
+	std	r10,TI_TASK(r15);

Where is "type" used?

Yes, its noting now but its worth leaving this to extend something in the future.

BTW, no need for a BOOK3E prefix for things local to this file.

What about "EXC_LEVEL_EXCEPTION_PROLOG"? Please see next version.

Thanks,

Tiejun