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authorPaul Mundt <lethal@linux-sh.org>2007-05-08 13:01:37 +0900
committerPaul Mundt <lethal@hera.kernel.org>2007-05-09 01:35:01 +0000
commit00bf0610e4cdbb9fd79ce4718e12b24cd7876dd7 (patch)
treeebfa6cb7c42e84ef694ad5805450547835de586e /arch/sh/kernel
parent44530c696b3fc2c8a45bdc798af85528e065ed80 (diff)
downloadlinux-2.6.34-ux500-00bf0610e4cdbb9fd79ce4718e12b24cd7876dd7.tar.gz
sh: Share exception vector table for SH-3/4.
The only difference between these at the moment are the FPU exceptions, and these are hidden away under CONFIG_SH_FPU (which is only set for the SH-4 case anyways..). This consolidates the two tables, and updates SH-4 to use the updated copy. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel')
-rw-r--r--arch/sh/kernel/cpu/sh3/ex.S13
-rw-r--r--arch/sh/kernel/cpu/sh4/Makefile6
-rw-r--r--arch/sh/kernel/cpu/sh4/ex.S62
3 files changed, 11 insertions, 70 deletions
diff --git a/arch/sh/kernel/cpu/sh3/ex.S b/arch/sh/kernel/cpu/sh3/ex.S
index ba3082d640b..2b2a9e02fb7 100644
--- a/arch/sh/kernel/cpu/sh3/ex.S
+++ b/arch/sh/kernel/cpu/sh3/ex.S
@@ -1,7 +1,7 @@
/*
* arch/sh/kernel/cpu/sh3/ex.S
*
- * The SH-3 exception vector table.
+ * The SH-3 and SH-4 exception vector table.
* Copyright (C) 1999, 2000, 2002 Niibe Yutaka
* Copyright (C) 2003 - 2006 Paul Mundt
@@ -9,7 +9,6 @@
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
- *
*/
#include <linux/linkage.h>
@@ -36,8 +35,12 @@ ENTRY(exception_handling_table)
.long exception_error ! address error load
.long exception_error ! address error store /* 100 */
#endif
- .long exception_error ! fpu_exception /* 120 */
- .long exception_error /* 140 */
+#if defined(CONFIG_SH_FPU)
+ .long do_fpu_error /* 120 */
+#else
+ .long exception_error /* 120 */
+#endif
+ .long exception_error /* 140 */
.long system_call ! Unconditional Trap /* 160 */
.long exception_error ! reserved_instruction (filled by trap_init) /* 180 */
.long exception_error ! illegal_slot_instruction (filled by trap_init) /*1A0*/
@@ -55,4 +58,4 @@ ENTRY(user_break_point_trap)
* away offsets can be manually inserted in to their appropriate
* location via set_exception_table_{evt,vec}().
*/
- .balign 4096,0,4096
+ .balign 4096,0,4096
diff --git a/arch/sh/kernel/cpu/sh4/Makefile b/arch/sh/kernel/cpu/sh4/Makefile
index 19ca68c7188..8add10bd826 100644
--- a/arch/sh/kernel/cpu/sh4/Makefile
+++ b/arch/sh/kernel/cpu/sh4/Makefile
@@ -2,10 +2,10 @@
# Makefile for the Linux/SuperH SH-4 backends.
#
-obj-y := ex.o probe.o common.o
-common-y += $(addprefix ../sh3/, entry.o)
+obj-y := probe.o common.o
+common-y += $(addprefix ../sh3/, entry.o ex.o)
-obj-$(CONFIG_SH_FPU) += fpu.o
+obj-$(CONFIG_SH_FPU) += fpu.o
obj-$(CONFIG_SH_STORE_QUEUES) += sq.o
# CPU subtype setup
diff --git a/arch/sh/kernel/cpu/sh4/ex.S b/arch/sh/kernel/cpu/sh4/ex.S
deleted file mode 100644
index ac8ab57413c..00000000000
--- a/arch/sh/kernel/cpu/sh4/ex.S
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * arch/sh/kernel/cpu/sh4/ex.S
- *
- * The SH-4 exception vector table.
-
- * Copyright (C) 1999, 2000, 2002 Niibe Yutaka
- * Copyright (C) 2003 - 2006 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-#include <linux/linkage.h>
-
- .align 2
- .data
-
-ENTRY(exception_handling_table)
- .long exception_error /* 000 */
- .long exception_error
-#if defined(CONFIG_MMU)
- .long tlb_miss_load /* 040 */
- .long tlb_miss_store
- .long initial_page_write
- .long tlb_protection_violation_load
- .long tlb_protection_violation_store
- .long address_error_load
- .long address_error_store /* 100 */
-#else
- .long exception_error ! tlb miss load /* 040 */
- .long exception_error ! tlb miss store
- .long exception_error ! initial page write
- .long exception_error ! tlb prot violation load
- .long exception_error ! tlb prot violation store
- .long exception_error ! address error load
- .long exception_error ! address error store /* 100 */
-#endif
-#if defined(CONFIG_SH_FPU)
- .long do_fpu_error /* 120 */
-#else
- .long exception_error /* 120 */
-#endif
- .long exception_error /* 140 */
- .long system_call ! Unconditional Trap /* 160 */
- .long exception_error ! reserved_instruction (filled by trap_init) /* 180 */
- .long exception_error ! illegal_slot_instruction (filled by trap_init) /*1A0*/
-ENTRY(nmi_slot)
-#if defined (CONFIG_KGDB_NMI)
- .long debug_enter /* 1C0 */ ! Allow trap to debugger
-#else
- .long exception_none /* 1C0 */ ! Not implemented yet
-#endif
-ENTRY(user_break_point_trap)
- .long break_point_trap /* 1E0 */
-
- /*
- * Pad the remainder of the table out, exceptions residing in far
- * away offsets can be manually inserted in to their appropriate
- * location via set_exception_table_{evt,vec}().
- */
- .balign 4096,0,4096