ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/h8300/kernel/traps.c b/marvell/linux/arch/h8300/kernel/traps.c
new file mode 100644
index 0000000..090adae
--- /dev/null
+++ b/marvell/linux/arch/h8300/kernel/traps.c
@@ -0,0 +1,160 @@
+/*
+ * linux/arch/h8300/boot/traps.c -- general exception handling code
+ * H8/300 support Yoshinori Sato <ysato@users.sourceforge.jp>
+ *
+ * Cloned from Linux/m68k.
+ *
+ * No original Copyright holder listed,
+ * Probable original (C) Roman Zippel (assigned DJD, 1999)
+ *
+ * Copyright 1999-2000 D. Jeff Dionne, <jeff@rt-control.com>
+ *
+ * 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/types.h>
+#include <linux/sched.h>
+#include <linux/sched/debug.h>
+#include <linux/sched/task.h>
+#include <linux/mm_types.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/bug.h>
+
+#include <asm/irq.h>
+#include <asm/traps.h>
+#include <asm/page.h>
+
+static DEFINE_SPINLOCK(die_lock);
+
+/*
+ * this must be called very early as the kernel might
+ * use some instruction that are emulated on the 060
+ */
+
+void __init base_trap_init(void)
+{
+}
+
+void __init trap_init(void)
+{
+}
+
+asmlinkage void set_esp0(unsigned long ssp)
+{
+ current->thread.esp0 = ssp;
+}
+
+/*
+ * Generic dumping code. Used for panic and debug.
+ */
+
+static void dump(struct pt_regs *fp)
+{
+ unsigned long *sp;
+ unsigned char *tp;
+ int i;
+
+ pr_info("\nCURRENT PROCESS:\n\n");
+ pr_info("COMM=%s PID=%d\n", current->comm, current->pid);
+ if (current->mm) {
+ pr_info("TEXT=%08x-%08x DATA=%08x-%08x BSS=%08x-%08x\n",
+ (int) current->mm->start_code,
+ (int) current->mm->end_code,
+ (int) current->mm->start_data,
+ (int) current->mm->end_data,
+ (int) current->mm->end_data,
+ (int) current->mm->brk);
+ pr_info("USER-STACK=%08x KERNEL-STACK=%08lx\n\n",
+ (int) current->mm->start_stack,
+ (int) PAGE_SIZE+(unsigned long)current);
+ }
+
+ show_regs(fp);
+ pr_info("\nCODE:");
+ tp = ((unsigned char *) fp->pc) - 0x20;
+ for (sp = (unsigned long *) tp, i = 0; (i < 0x40); i += 4) {
+ if ((i % 0x10) == 0)
+ pr_info("\n%08x: ", (int) (tp + i));
+ pr_info("%08x ", (int) *sp++);
+ }
+ pr_info("\n");
+
+ pr_info("\nKERNEL STACK:");
+ tp = ((unsigned char *) fp) - 0x40;
+ for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) {
+ if ((i % 0x10) == 0)
+ pr_info("\n%08x: ", (int) (tp + i));
+ pr_info("%08x ", (int) *sp++);
+ }
+ pr_info("\n");
+ if (STACK_MAGIC != *(unsigned long *)((unsigned long)current+PAGE_SIZE))
+ pr_info("(Possibly corrupted stack page??)\n");
+
+ pr_info("\n\n");
+}
+
+void die(const char *str, struct pt_regs *fp, unsigned long err)
+{
+ static int diecount;
+
+ oops_enter();
+
+ console_verbose();
+ spin_lock_irq(&die_lock);
+ report_bug(fp->pc, fp);
+ pr_crit("%s: %04lx [#%d] ", str, err & 0xffff, ++diecount);
+ dump(fp);
+
+ spin_unlock_irq(&die_lock);
+ make_task_dead(SIGSEGV);
+}
+
+static int kstack_depth_to_print = 24;
+
+void show_stack(struct task_struct *task, unsigned long *esp)
+{
+ unsigned long *stack, addr;
+ int i;
+
+ if (esp == NULL)
+ esp = (unsigned long *) &esp;
+
+ stack = esp;
+
+ pr_info("Stack from %08lx:", (unsigned long)stack);
+ for (i = 0; i < kstack_depth_to_print; i++) {
+ if (((unsigned long)stack & (THREAD_SIZE - 1)) >=
+ THREAD_SIZE-4)
+ break;
+ if (i % 8 == 0)
+ pr_info(" ");
+ pr_cont(" %08lx", *stack++);
+ }
+
+ pr_info("\nCall Trace:\n");
+ i = 0;
+ stack = esp;
+ while (((unsigned long)stack & (THREAD_SIZE - 1)) < THREAD_SIZE-4) {
+ addr = *stack++;
+ /*
+ * If the address is either in the text segment of the
+ * kernel, or in the region which contains vmalloc'ed
+ * memory, it *may* be the address of a calling
+ * routine; if so, print it so that someone tracing
+ * down the cause of the crash will be able to figure
+ * out the call path that was taken.
+ */
+ if (check_kernel_text(addr)) {
+ if (i % 4 == 0)
+ pr_info(" ");
+ pr_cont(" [<%08lx>]", addr);
+ i++;
+ }
+ }
+ pr_info("\n");
+}