On 10/19/2013 06:43 AM, Scott Wood wrote:
On Thu, 2013-06-20 at 18:28 +0800, Tiejun Chen wrote:
We need to store thread info to these exception thread info like something
we already did for PPC32.
Signed-off-by: Tiejun Chen <tiejun.c...@windriver.com>
---
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
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