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-rw-r--r--arch/microblaze/kernel/hw_exception_handler.S10
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S
index 3288c973767..6b0288ebccd 100644
--- a/arch/microblaze/kernel/hw_exception_handler.S
+++ b/arch/microblaze/kernel/hw_exception_handler.S
@@ -84,9 +84,10 @@
#define NUM_TO_REG(num) r ## num
#ifdef CONFIG_MMU
-/* FIXME you can't change first load of MSR because there is
- * hardcoded jump bri 4 */
#define RESTORE_STATE \
+ lwi r5, r1, 0; \
+ mts rmsr, r5; \
+ nop; \
lwi r3, r1, PT_R3; \
lwi r4, r1, PT_R4; \
lwi r5, r1, PT_R5; \
@@ -309,6 +310,9 @@ _hw_exception_handler:
lwi r31, r0, TOPHYS(PER_CPU(CURRENT_SAVE)) /* get saved current */
#endif
+ mfs r5, rmsr;
+ nop
+ swi r5, r1, 0;
mfs r3, resr
nop
mfs r4, rear;
@@ -380,6 +384,8 @@ handle_other_ex: /* Handle Other exceptions here */
addk r8, r17, r0; /* Load exception address */
bralid r15, full_exception; /* Branch to the handler */
nop;
+ mts r0, rfsr; /* Clear sticky fsr */
+ nop
/*
* Trigger execution of the signal handler by enabling