From b0c4fae44a549074e08d7f81779c7f3d9dcb1eb2 Mon Sep 17 00:00:00 2001
From: Macpaul Lin <macpaul@gmail.com>
Date: Sun, 11 Mar 2012 16:30:18 +0800
Subject: [PATCH 1/2] nds32: fix ptrace and interrupt register overflow

Fix ptrace and interrupt register overflow warning.
Add missing P0 and P1 (r26 and r27) into register lists.
These register are usually used in OS.

Signed-off-by: Macpaul Lin <macpaul@gmail.com>
---
 arch/nds32/include/asm/ptrace.h | 2 ++
 arch/nds32/lib/interrupts.c     | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/nds32/include/asm/ptrace.h b/arch/nds32/include/asm/ptrace.h
index 4336083..ee181b2 100644
--- a/arch/nds32/include/asm/ptrace.h
+++ b/arch/nds32/include/asm/ptrace.h
@@ -38,6 +38,8 @@ struct pt_regs {
 	NDS32_REG d1hi;
 	NDS32_REG d1lo;
 	NDS32_REG r[26];	/* r0 - r25 */
+	NDS32_REG p0;		/* r26 - used by OS */
+	NDS32_REG p1;		/* r27 - used by OS */
 	NDS32_REG fp;		/* r28 */
 	NDS32_REG gp;		/* r29 */
 	NDS32_REG lp;		/* r30 */
diff --git a/arch/nds32/lib/interrupts.c b/arch/nds32/lib/interrupts.c
index 974d52a..ca8c227 100644
--- a/arch/nds32/lib/interrupts.c
+++ b/arch/nds32/lib/interrupts.c
@@ -91,7 +91,7 @@ void show_regs(struct pt_regs *regs)
 	printf("D1H: %08lx  D1L: %08lx  D0H: %08lx  D0L: %08lx\n",
 		regs->d1hi, regs->d1lo, regs->d0hi, regs->d0lo);
 	printf("r27: %08lx  r26: %08lx  r25: %08lx  r24: %08lx\n",
-		regs->r[27], regs->r[26], regs->r[25], regs->r[24]);
+		regs->p1, regs->p0, regs->r[25], regs->r[24]);
 	printf("r23: %08lx  r22: %08lx  r21: %08lx  r20: %08lx\n",
 		regs->r[23], regs->r[22], regs->r[21], regs->r[20]);
 	printf("r19: %08lx  r18: %08lx  r17: %08lx  r16: %08lx\n",

From 1a05bb3c2804980fa4fbcd2b7a05a2203308af55 Mon Sep 17 00:00:00 2001
From: Macpaul Lin <macpaul@gmail.com>
Date: Sun, 11 Mar 2012 16:53:23 +0800
Subject: [PATCH 2/2] nds32/n1213: correct vector table in start.S

Correct definition of vector table in start.S

Signed-off-by: Macpaul Lin <macpaul@gmail.com>
---
 arch/nds32/cpu/n1213/start.S | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/arch/nds32/cpu/n1213/start.S b/arch/nds32/cpu/n1213/start.S
index 1d1fcf7..889bf8b 100644
--- a/arch/nds32/cpu/n1213/start.S
+++ b/arch/nds32/cpu/n1213/start.S
@@ -68,15 +68,17 @@ _start:	j	reset
 	j	tlb_not_present
 	j	tlb_misc
 	j	tlb_vlpt_miss
-	j	cache_parity_error
+	j	machine_error
 	j	debug
 	j	general_exception
+	j	syscall
 	j	internal_interrupt		! H0I
 	j	internal_interrupt		! H1I
 	j	internal_interrupt		! H2I
 	j	internal_interrupt		! H3I
 	j	internal_interrupt		! H4I
 	j	internal_interrupt		! H5I
+	j	software_interrupt		! S0I
 
 	.balign 16
 
@@ -477,7 +479,7 @@ tlb_vlpt_miss:
 	bal	do_interruption
 
 	.align	5
-cache_parity_error:
+machine_error:
 	SAVE_ALL
 	move	$r0, $sp			! To get the kernel stack
 	li	$r1, 5				! Determine interruption type
@@ -498,13 +500,27 @@ general_exception:
 	bal	do_interruption
 
 	.align	5
-internal_interrupt:
+syscall:
 	SAVE_ALL
 	move	$r0, $sp			! To get the kernel stack
 	li	$r1, 8				! Determine interruption type
 	bal	do_interruption
 
 	.align	5
+internal_interrupt:
+	SAVE_ALL
+	move	$r0, $sp			! To get the kernel stack
+	li	$r1, 9				! Determine interruption type
+	bal	do_interruption
+
+	.align	5
+software_interrupt:
+	SAVE_ALL
+	move	$r0, $sp			! To get the kernel stack
+	li	$r1, 10				! Determine interruption type
+	bal	do_interruption
+
+	.align	5
 
 /*
  * void reset_cpu(ulong addr);