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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2006-10-09 01:24:23 +0900
committerRalf Baechle <ralf@linux-mips.org>2006-10-09 23:20:46 +0100
commitf431baa55abf8adeed0c718b51deacbc151f58f1 (patch)
treefe0383328c1d8bcb0fae7e266a437b980a05a7f9 /arch/mips/kernel/smtc-asm.S
parent441ee341ad63572f39cb8074e31806b5b1471d0b (diff)
[MIPS] ret_from_irq adjustment
Make sure that RA on top of interrupt stack is an address of ret_from_irq, so that dump_stack etc. can trace info interrupted context. Also this patch fixes except_vec_vi_handler and __smtc_ipi_vector which seems broken. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/smtc-asm.S')
-rw-r--r--arch/mips/kernel/smtc-asm.S9
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/mips/kernel/smtc-asm.S b/arch/mips/kernel/smtc-asm.S
index 76cb31d57482..1cb9441f1474 100644
--- a/arch/mips/kernel/smtc-asm.S
+++ b/arch/mips/kernel/smtc-asm.S
@@ -97,15 +97,12 @@ FEXPORT(__smtc_ipi_vector)
SAVE_ALL
CLI
TRACE_IRQS_OFF
- move a0,sp
/* Function to be invoked passed stack pad slot 5 */
lw t0,PT_PADSLOT5(sp)
/* Argument from sender passed in stack pad slot 4 */
- lw a1,PT_PADSLOT4(sp)
- jalr t0
- nop
- j ret_from_irq
- nop
+ lw a0,PT_PADSLOT4(sp)
+ PTR_LA ra, _ret_from_irq
+ jr t0
/*
* Called from idle loop to provoke processing of queued IPIs