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[MIPS] ret_from_irq adjustment

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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>
This commit is contained in:
Atsushi Nemoto
2006-10-09 01:24:23 +09:00
committed by Ralf Baechle
parent 441ee341ad
commit f431baa55a
4 changed files with 19 additions and 23 deletions
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8
arch/mips/kernel/genex.S
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@@ -133,9 +133,8 @@ NESTED(handle_int, PT_SIZE, sp)
LONG_L s0, TI_REGS($28)
LONG_S sp, TI_REGS($28)
jal plat_irq_dispatch
LONG_S s0, TI_REGS($28)
j ret_from_irq
PTR_LA ra, ret_from_irq
j plat_irq_dispatch
END(handle_int)
__INIT
@@ -224,9 +223,8 @@ NESTED(except_vec_vi_handler, 0, sp)
LONG_L s0, TI_REGS($28)
LONG_S sp, TI_REGS($28)
jalr v0
LONG_S s0, TI_REGS($28)
PTR_LA ra, ret_from_irq
jr v0
END(except_vec_vi_handler)
/*