powerpc/476: Add isync to the top of all exception handlers for DD1.1 core
From: Dave Kleikamp <sha...@linux.vnet.ibm.com>
Signed-off-by: Dave Kleikamp <sha...@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/asm-compat.h | 7 ++++++-
arch/powerpc/kernel/head_booke.h | 3 ++-
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/asm-compat.h
b/arch/powerpc/include/asm/asm-compat.h
index bee05ec..1890fbf 100644
--- a/arch/powerpc/include/asm/asm-compat.h
+++ b/arch/powerpc/include/asm/asm-compat.h
@@ -70,8 +70,13 @@
BEGIN_FTR_SECTION; \
lwsync; \
END_FTR_SECTION_IFSET(CPU_FTR_476_DD1_1)
-#else
+#define PPC476_ERR_ISYNC() \
+ BEGIN_FTR_SECTION; \
+ isync; \
+ END_FTR_SECTION_IFSET(CPU_FTR_476_DD1_1)
+#else /* ! CONFIG_PPC_47x */
#define PPC476_ERR_DCBx()
+#define PPC476_ERR_ISYNC()
#endif /* CONFIG_PPC_47x */
#endif
diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h
index 80d47f4..6b1ad61 100644
--- a/arch/powerpc/kernel/head_booke.h
+++ b/arch/powerpc/kernel/head_booke.h
@@ -165,7 +165,8 @@
*/
#define START_EXCEPTION(label)
\
.align 5;
\
-label:
+label: \
+ PPC476_ERR_ISYNC()
#define FINISH_EXCEPTION(func) \
bl transfer_to_handler_full; \
--
Dave Kleikamp
IBM Linux Technology Center
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