1 files changed, 58 insertions, 0 deletions

diff --git a/arch/h8300/mm/fault.c b/arch/h8300/mm/fault.c
new file mode 100644
index 000000000000..29e9af9f0e6a
--- /dev/null
+++ b/arch/h8300/mm/fault.c
@@ -0,0 +1,58 @@
+/*
+ *  linux/arch/h8300/mm/fault.c
+ *
+ *  Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>,
+ *  Copyright (C) 2000  Lineo, Inc.  (www.lineo.com) 
+ *
+ *  Based on:
+ *
+ *  linux/arch/m68knommu/mm/fault.c
+ *  linux/arch/m68k/mm/fault.c
+ *
+ *  Copyright (C) 1995  Hamish Macdonald
+ */
+
+#include <linux/mman.h>
+#include <linux/mm.h>
+#include <linux/kernel.h>
+#include <linux/ptrace.h>
+
+#include <asm/system.h>
+#include <asm/pgtable.h>
+
+extern void die_if_kernel(char *, struct pt_regs *, long);
+
+/*
+ * This routine handles page faults.  It determines the problem, and
+ * then passes it off to one of the appropriate routines.
+ *
+ * error_code:
+ *      bit 0 == 0 means no page found, 1 means protection fault
+ *      bit 1 == 0 means read, 1 means write
+ *
+ * If this routine detects a bad access, it returns 1, otherwise it
+ * returns 0.
+ */
+asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
+                              unsigned long error_code)
+{
+#ifdef DEBUG
+        printk ("regs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld\n",
+                regs->sr, regs->pc, address, error_code);
+#endif
+
+/*
+ * Oops. The kernel tried to access some bad page. We'll have to
+ * terminate things with extreme prejudice.
+ */
+        if ((unsigned long) address < PAGE_SIZE) {
+                printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
+        } else
+                printk(KERN_ALERT "Unable to handle kernel access");
+        printk(" at virtual address %08lx\n",address);
+        die_if_kernel("Oops", regs, error_code);
+        do_exit(SIGKILL);
+
+        return 1;
+}
+