3.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Vineet Gupta <vgupta@xxxxxxxxxxxx>
commit 05b016ecf5e7a8c24409d8e9effb5d2ec9107708 upstream.
Otherwise early boot exceptions such as instructions errors due to
configuration mismatch between kernel and hardware go off to la-la land,
as opposed to hitting the handler and panic()'ing properly.
Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arc/kernel/head.S | 2 ++
arch/arc/kernel/irq.c | 2 --
2 files changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arc/kernel/head.S
+++ b/arch/arc/kernel/head.S
@@ -27,6 +27,8 @@ stext:
; Don't clobber r0-r4 yet. It might have bootloader provided info
;-------------------------------------------------------------------
+ sr @_int_vec_base_lds, [AUX_INTR_VEC_BASE]
+
#ifdef CONFIG_SMP
; Only Boot (Master) proceeds. Others wait in platform dependent way
; IDENTITY Reg [ 3 2 1 0 ]
--- a/arch/arc/kernel/irq.c
+++ b/arch/arc/kernel/irq.c
@@ -32,8 +32,6 @@ void __cpuinit arc_init_IRQ(void)
{
int level_mask = 0;
- write_aux_reg(AUX_INTR_VEC_BASE, _int_vec_base_lds);
-
/* Disable all IRQs: enable them as devices request */
write_aux_reg(AUX_IENABLE, 0);
--
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