From: Petri Gynther <pgynther@google.com>
Date: Fri, 8 May 2015 22:10:10 +0000 (-0700)
Subject: MIPS: traps: print Exception Code in __show_regs()
X-Git-Tag: v4.2-rc1~78^2~123
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=37dd3818d1f3d875125cffb6d84392df1a38f2f9;p=platform%2Fkernel%2Flinux-exynos.git

MIPS: traps: print Exception Code in __show_regs()

Print Exception Code when printing the Cause register.

Signed-off-by: Petri Gynther <pgynther@google.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/9998/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index d2d1c19..1d6dd12 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -236,6 +236,7 @@ static void __show_regs(const struct pt_regs *regs)
 {
 	const int field = 2 * sizeof(unsigned long);
 	unsigned int cause = regs->cp0_cause;
+	unsigned int exccode;
 	int i;
 
 	show_regs_print_info(KERN_DEFAULT);
@@ -317,10 +318,10 @@ static void __show_regs(const struct pt_regs *regs)
 	}
 	printk("\n");
 
-	printk("Cause : %08x\n", cause);
+	exccode = (cause & CAUSEF_EXCCODE) >> CAUSEB_EXCCODE;
+	printk("Cause : %08x (ExcCode %02x)\n", cause, exccode);
 
-	cause = (cause & CAUSEF_EXCCODE) >> CAUSEB_EXCCODE;
-	if (1 <= cause && cause <= 5)
+	if (1 <= exccode && exccode <= 5)
 		printk("BadVA : %0*lx\n", field, regs->cp0_badvaddr);
 
 	printk("PrId  : %08x (%s)\n", read_c0_prid(),