microblaze_mmu_v2: Traps MMU update

Signed-off-by: Michal Simek <monstr@monstr.eu>

1 files changed, 34 insertions, 0 deletions

diff --git a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c
index 6322cc174474..eaaaf805f31b 100644
--- a/arch/microblaze/kernel/traps.c
+++ b/arch/microblaze/kernel/traps.c
@@ -97,3 +97,37 @@ void dump_stack(void)
         show_stack(NULL, NULL);
 }
 EXPORT_SYMBOL(dump_stack);
+
+#ifdef CONFIG_MMU
+void __bug(const char *file, int line, void *data)
+{
+        if (data)
+                printk(KERN_CRIT "kernel BUG at %s:%d (data = %p)!\n",
+                        file, line, data);
+        else
+                printk(KERN_CRIT "kernel BUG at %s:%d!\n", file, line);
+
+        machine_halt();
+}
+
+int bad_trap(int trap_num, struct pt_regs *regs)
+{
+        printk(KERN_CRIT
+                "unimplemented trap %d called at 0x%08lx, pid %d!\n",
+                trap_num, regs->pc, current->pid);
+        return -ENOSYS;
+}
+
+int debug_trap(struct pt_regs *regs)
+{
+        int i;
+        printk(KERN_CRIT "debug trap\n");
+        for (i = 0; i < 32; i++) {
+                /* printk("r%i:%08X\t",i,regs->gpr[i]); */
+                if ((i % 4) == 3)
+                        printk(KERN_CRIT "\n");
+        }
+        printk(KERN_CRIT "pc:%08lX\tmsr:%08lX\n", regs->pc, regs->msr);
+        return -ENOSYS;
+}
+#endif