This is a note to let you know that I've just added the patch titled
ARC: Setup Vector Table Base in early boot
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arc-setup-vector-table-base-in-early-boot.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 05b016ecf5e7a8c24409d8e9effb5d2ec9107708 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Date: Mon, 17 Jun 2013 18:27:23 +0530
Subject: ARC: Setup Vector Table Base in early boot
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);
Patches currently in stable-queue which might be from vgupta@xxxxxxxxxxxx are
queue-3.10/arc-fix-32-bit-wrap-around-in-access_ok.patch
queue-3.10/arc-fix-signal-frame-management-for-sa_siginfo.patch
queue-3.10/arc-ignore-ptrace-setregset-request-for-synthetic-register-stop_pc.patch
queue-3.10/arc-handle-zero-overhead-loop-in-unaligned-access-handler.patch
queue-3.10/arc-fix-__udelay-calculation.patch
queue-3.10/arc-workaround-spinlock-livelock-in-smp-systemc-simulation.patch
queue-3.10/arc-smp-failed-to-boot-due-to-missing-ivt-setup.patch
queue-3.10/arc-setup-vector-table-base-in-early-boot.patch
--
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