mn10300: Remove the architecture

Remove the MN10300 arch as the hardware is defunct.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Masahiro Yamada <yamada.masahiro@socionext.com>
cc: linux-am33-list@redhat.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 615 deletions

diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c
deleted file mode 100644
index 72d1015b2ae7..000000000000
--- a/arch/mn10300/kernel/traps.c
+++ /dev/null
@@ -1,615 +0,0 @@
-/* MN10300 Exception handling
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Modified by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/sched.h>
-#include <linux/sched/debug.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/pci.h>
-#include <linux/kdebug.h>
-#include <linux/bug.h>
-#include <linux/irq.h>
-#include <linux/export.h>
-#include <asm/processor.h>
-#include <linux/uaccess.h>
-#include <asm/io.h>
-#include <linux/atomic.h>
-#include <asm/smp.h>
-#include <asm/pgalloc.h>
-#include <asm/cacheflush.h>
-#include <asm/cpu-regs.h>
-#include <asm/busctl-regs.h>
-#include <unit/leds.h>
-#include <asm/fpu.h>
-#include <asm/sections.h>
-#include <asm/debugger.h>
-#include "internal.h"
-
-#if (CONFIG_INTERRUPT_VECTOR_BASE & 0xffffff)
-#error "INTERRUPT_VECTOR_BASE not aligned to 16MiB boundary!"
-#endif
-
-int kstack_depth_to_print = 24;
-
-spinlock_t die_lock = __SPIN_LOCK_UNLOCKED(die_lock);
-
-struct exception_to_signal_map {
-	u8	signo;
-	u32	si_code;
-};
-
-static const struct exception_to_signal_map exception_to_signal_map[256] = {
-	/* MMU exceptions */
-	[EXCEP_ITLBMISS >> 3]	= { 0, 0 },
-	[EXCEP_DTLBMISS >> 3]	= { 0, 0 },
-	[EXCEP_IAERROR >> 3]	= { 0, 0 },
-	[EXCEP_DAERROR >> 3]	= { 0, 0 },
-
-	/* system exceptions */
-	[EXCEP_TRAP >> 3]	= { SIGTRAP,	TRAP_BRKPT },
-	[EXCEP_ISTEP >> 3]	= { SIGTRAP,	TRAP_TRACE },	/* Monitor */
-	[EXCEP_IBREAK >> 3]	= { SIGTRAP,	TRAP_HWBKPT },	/* Monitor */
-	[EXCEP_OBREAK >> 3]	= { SIGTRAP,	TRAP_HWBKPT },	/* Monitor */
-	[EXCEP_PRIVINS >> 3]	= { SIGILL,	ILL_PRVOPC },
-	[EXCEP_UNIMPINS >> 3]	= { SIGILL,	ILL_ILLOPC },
-	[EXCEP_UNIMPEXINS >> 3]	= { SIGILL,	ILL_ILLOPC },
-	[EXCEP_MEMERR >> 3]	= { SIGSEGV,	SEGV_ACCERR },
-	[EXCEP_MISALIGN >> 3]	= { SIGBUS,	BUS_ADRALN },
-	[EXCEP_BUSERROR >> 3]	= { SIGBUS,	BUS_ADRERR },
-	[EXCEP_ILLINSACC >> 3]	= { SIGSEGV,	SEGV_ACCERR },
-	[EXCEP_ILLDATACC >> 3]	= { SIGSEGV,	SEGV_ACCERR },
-	[EXCEP_IOINSACC >> 3]	= { SIGSEGV,	SEGV_ACCERR },
-	[EXCEP_PRIVINSACC >> 3]	= { SIGSEGV,	SEGV_ACCERR }, /* userspace */
-	[EXCEP_PRIVDATACC >> 3]	= { SIGSEGV,	SEGV_ACCERR }, /* userspace */
-	[EXCEP_DATINSACC >> 3]	= { SIGSEGV,	SEGV_ACCERR },
-	[EXCEP_DOUBLE_FAULT >> 3] = { SIGILL,	ILL_BADSTK },
-
-	/* FPU exceptions */
-	[EXCEP_FPU_DISABLED >> 3] = { SIGILL,	ILL_COPROC },
-	[EXCEP_FPU_UNIMPINS >> 3] = { SIGILL,	ILL_COPROC },
-	[EXCEP_FPU_OPERATION >> 3] = { SIGFPE,	FPE_INTDIV },
-
-	/* interrupts */
-	[EXCEP_WDT >> 3]	= { SIGALRM,	0 },
-	[EXCEP_NMI >> 3]	= { SIGQUIT,	0 },
-	[EXCEP_IRQ_LEVEL0 >> 3]	= { SIGINT,	0 },
-	[EXCEP_IRQ_LEVEL1 >> 3]	= { 0, 0 },
-	[EXCEP_IRQ_LEVEL2 >> 3]	= { 0, 0 },
-	[EXCEP_IRQ_LEVEL3 >> 3]	= { 0, 0 },
-	[EXCEP_IRQ_LEVEL4 >> 3]	= { 0, 0 },
-	[EXCEP_IRQ_LEVEL5 >> 3]	= { 0, 0 },
-	[EXCEP_IRQ_LEVEL6 >> 3]	= { 0, 0 },
-
-	/* system calls */
-	[EXCEP_SYSCALL0 >> 3]	= { 0, 0 },
-	[EXCEP_SYSCALL1 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL2 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL3 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL4 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL5 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL6 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL7 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL8 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL9 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL10 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL11 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL12 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL13 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL14 >> 3]	= { SIGILL,	ILL_ILLTRP },
-	[EXCEP_SYSCALL15 >> 3]	= { SIGABRT,	0 },
-};
-
-/*
- * Handle kernel exceptions.
- *
- * See if there's a fixup handler we can force a jump to when an exception
- * happens due to something kernel code did
- */
-int die_if_no_fixup(const char *str, struct pt_regs *regs,
-		    enum exception_code code)
-{
-	u8 opcode;
-	int signo, si_code;
-
-	if (user_mode(regs))
-		return 0;
-
-	peripheral_leds_display_exception(code);
-
-	signo = exception_to_signal_map[code >> 3].signo;
-	si_code = exception_to_signal_map[code >> 3].si_code;
-
-	switch (code) {
-		/* see if we can fixup the kernel accessing memory */
-	case EXCEP_ITLBMISS:
-	case EXCEP_DTLBMISS:
-	case EXCEP_IAERROR:
-	case EXCEP_DAERROR:
-	case EXCEP_MEMERR:
-	case EXCEP_MISALIGN:
-	case EXCEP_BUSERROR:
-	case EXCEP_ILLDATACC:
-	case EXCEP_IOINSACC:
-	case EXCEP_PRIVINSACC:
-	case EXCEP_PRIVDATACC:
-	case EXCEP_DATINSACC:
-		if (fixup_exception(regs))
-			return 1;
-		break;
-
-	case EXCEP_TRAP:
-	case EXCEP_UNIMPINS:
-		if (probe_kernel_read(&opcode, (u8 *)regs->pc, 1) < 0)
-			break;
-		if (opcode == 0xff) {
-			if (notify_die(DIE_BREAKPOINT, str, regs, code, 0, 0))
-				return 1;
-			if (at_debugger_breakpoint(regs))
-				regs->pc++;
-			signo = SIGTRAP;
-			si_code = TRAP_BRKPT;
-		}
-		break;
-
-	case EXCEP_SYSCALL1 ... EXCEP_SYSCALL14:
-		/* syscall return addr is _after_ the instruction */
-		regs->pc -= 2;
-		break;
-
-	case EXCEP_SYSCALL15:
-		if (report_bug(regs->pc, regs) == BUG_TRAP_TYPE_WARN)
-			return 1;
-
-		/* syscall return addr is _after_ the instruction */
-		regs->pc -= 2;
-		break;
-
-	default:
-		break;
-	}
-
-	if (debugger_intercept(code, signo, si_code, regs) == 0)
-		return 1;
-
-	if (notify_die(DIE_GPF, str, regs, code, 0, 0))
-		return 1;
-
-	/* make the process die as the last resort */
-	die(str, regs, code);
-}
-
-/*
- * General exception handler
- */
-asmlinkage void handle_exception(struct pt_regs *regs, u32 intcode)
-{
-	siginfo_t info;
-
-	/* deal with kernel exceptions here */
-	if (die_if_no_fixup(NULL, regs, intcode))
-		return;
-
-	/* otherwise it's a userspace exception */
-	info.si_signo = exception_to_signal_map[intcode >> 3].signo;
-	info.si_code = exception_to_signal_map[intcode >> 3].si_code;
-	info.si_errno = 0;
-	info.si_addr = (void *) regs->pc;
-	force_sig_info(info.si_signo, &info, current);
-}
-
-/*
- * handle NMI
- */
-asmlinkage void nmi(struct pt_regs *regs, enum exception_code code)
-{
-	/* see if gdbstub wants to deal with it */
-	if (debugger_intercept(code, SIGQUIT, 0, regs))
-		return;
-
-	printk(KERN_WARNING "--- Register Dump ---\n");
-	show_registers(regs);
-	printk(KERN_WARNING "---------------------\n");
-}
-
-/*
- * show a stack trace from the specified stack pointer
- */
-void show_trace(unsigned long *sp)
-{
-	unsigned long bottom, stack, addr, fp, raslot;
-
-	printk(KERN_EMERG "\nCall Trace:\n");
-
-	//stack = (unsigned long)sp;
-	asm("mov sp,%0" : "=a"(stack));
-	asm("mov a3,%0" : "=r"(fp));
-
-	raslot = ULONG_MAX;
-	bottom = (stack + THREAD_SIZE) & ~(THREAD_SIZE - 1);
-	for (; stack < bottom; stack += sizeof(addr)) {
-		addr = *(unsigned long *)stack;
-		if (stack == fp) {
-			if (addr > stack && addr < bottom) {
-				fp = addr;
-				raslot = stack + sizeof(addr);
-				continue;
-			}
-			fp = 0;
-			raslot = ULONG_MAX;
-		}
-
-		if (__kernel_text_address(addr)) {
-			printk(" [<%08lx>]", addr);
-			if (stack >= raslot)
-				raslot = ULONG_MAX;
-			else
-				printk(" ?");
-			printk(" %pS\n", (void *)addr);
-		}
-	}
-
-	printk("\n");
-}
-
-/*
- * show the raw stack from the specified stack pointer
- */
-void show_stack(struct task_struct *task, unsigned long *sp)
-{
-	unsigned long *stack;
-	int i;
-
-	if (!sp)
-		sp = (unsigned long *) &sp;
-
-	stack = sp;
-	printk(KERN_EMERG "Stack:");
-	for (i = 0; i < kstack_depth_to_print; i++) {
-		if (((long) stack & (THREAD_SIZE - 1)) == 0)
-			break;
-		if ((i % 8) == 0)
-			printk(KERN_EMERG "  ");
-		printk("%08lx ", *stack++);
-	}
-
-	show_trace(sp);
-}
-
-/*
- * dump the register file in the specified exception frame
- */
-void show_registers_only(struct pt_regs *regs)
-{
-	unsigned long ssp;
-
-	ssp = (unsigned long) regs + sizeof(*regs);
-
-	printk(KERN_EMERG "PC:  %08lx EPSW:  %08lx  SSP: %08lx mode: %s\n",
-	       regs->pc, regs->epsw, ssp, user_mode(regs) ? "User" : "Super");
-	printk(KERN_EMERG "d0:  %08lx   d1:  %08lx   d2: %08lx   d3: %08lx\n",
-	       regs->d0, regs->d1, regs->d2, regs->d3);
-	printk(KERN_EMERG "a0:  %08lx   a1:  %08lx   a2: %08lx   a3: %08lx\n",
-	       regs->a0, regs->a1, regs->a2, regs->a3);
-	printk(KERN_EMERG "e0:  %08lx   e1:  %08lx   e2: %08lx   e3: %08lx\n",
-	       regs->e0, regs->e1, regs->e2, regs->e3);
-	printk(KERN_EMERG "e4:  %08lx   e5:  %08lx   e6: %08lx   e7: %08lx\n",
-	       regs->e4, regs->e5, regs->e6, regs->e7);
-	printk(KERN_EMERG "lar: %08lx   lir: %08lx  mdr: %08lx  usp: %08lx\n",
-	       regs->lar, regs->lir, regs->mdr, regs->sp);
-	printk(KERN_EMERG "cvf: %08lx   crl: %08lx  crh: %08lx  drq: %08lx\n",
-	       regs->mcvf, regs->mcrl, regs->mcrh, regs->mdrq);
-	printk(KERN_EMERG "threadinfo=%p task=%p)\n",
-	       current_thread_info(), current);
-
-	if ((unsigned long) current >= PAGE_OFFSET &&
-	    (unsigned long) current < (unsigned long)high_memory)
-		printk(KERN_EMERG "Process %s (pid: %d)\n",
-		       current->comm, current->pid);
-
-#ifdef CONFIG_SMP
-	printk(KERN_EMERG "CPUID:  %08x\n", CPUID);
-#endif
-	printk(KERN_EMERG "CPUP:   %04hx\n", CPUP);
-	printk(KERN_EMERG "TBR:    %08x\n", TBR);
-	printk(KERN_EMERG "DEAR:   %08x\n", DEAR);
-	printk(KERN_EMERG "sISR:   %08x\n", sISR);
-	printk(KERN_EMERG "NMICR:  %04hx\n", NMICR);
-	printk(KERN_EMERG "BCBERR: %08x\n", BCBERR);
-	printk(KERN_EMERG "BCBEAR: %08x\n", BCBEAR);
-	printk(KERN_EMERG "MMUFCR: %08x\n", MMUFCR);
-	printk(KERN_EMERG "IPTEU : %08x  IPTEL2: %08x\n", IPTEU, IPTEL2);
-	printk(KERN_EMERG "DPTEU:  %08x  DPTEL2: %08x\n", DPTEU, DPTEL2);
-}
-
-/*
- * dump the registers and the stack
- */
-void show_registers(struct pt_regs *regs)
-{
-	unsigned long sp;
-	int i;
-
-	show_registers_only(regs);
-
-	if (!user_mode(regs))
-		sp = (unsigned long) regs + sizeof(*regs);
-	else
-		sp = regs->sp;
-
-	/* when in-kernel, we also print out the stack and code at the
-	 * time of the fault..
-	 */
-	if (!user_mode(regs)) {
-		printk(KERN_EMERG "\n");
-		show_stack(current, (unsigned long *) sp);
-
-#if 0
-		printk(KERN_EMERG "\nCode: ");
-		if (regs->pc < PAGE_OFFSET)
-			goto bad;
-
-		for (i = 0; i < 20; i++) {
-			unsigned char c;
-			if (__get_user(c, &((unsigned char *) regs->pc)[i]))
-				goto bad;
-			printk("%02x ", c);
-		}
-#else
-		i = 0;
-#endif
-	}
-
-	printk("\n");
-	return;
-
-#if 0
-bad:
-	printk(KERN_EMERG " Bad PC value.");
-	break;
-#endif
-}
-
-/*
- *
- */
-void show_trace_task(struct task_struct *tsk)
-{
-	unsigned long sp = tsk->thread.sp;
-
-	/* User space on another CPU? */
-	if ((sp ^ (unsigned long) tsk) & (PAGE_MASK << 1))
-		return;
-
-	show_trace((unsigned long *) sp);
-}
-
-/*
- * note the untimely death of part of the kernel
- */
-void die(const char *str, struct pt_regs *regs, enum exception_code code)
-{
-	console_verbose();
-	spin_lock_irq(&die_lock);
-	printk(KERN_EMERG "\n%s: %04x\n",
-	       str, code & 0xffff);
-	show_registers(regs);
-
-	if (regs->pc >= 0x02000000 && regs->pc < 0x04000000 &&
-	    (regs->epsw & (EPSW_IM | EPSW_IE)) != (EPSW_IM | EPSW_IE)) {
-		printk(KERN_EMERG "Exception in usermode interrupt handler\n");
-		printk(KERN_EMERG "\nPlease connect to kernel debugger !!\n");
-		asm volatile ("0: bra 0b");
-	}
-
-	spin_unlock_irq(&die_lock);
-	do_exit(SIGSEGV);
-}
-
-/*
- * display the register file when the stack pointer gets clobbered
- */
-asmlinkage void do_double_fault(struct pt_regs *regs)
-{
-	struct task_struct *tsk = current;
-
-	strcpy(tsk->comm, "emergency tsk");
-	tsk->pid = 0;
-	console_verbose();
-	printk(KERN_EMERG "--- double fault ---\n");
-	show_registers(regs);
-}
-
-/*
- * asynchronous bus error (external, usually I/O DMA)
- */
-asmlinkage void io_bus_error(u32 bcberr, u32 bcbear, struct pt_regs *regs)
-{
-	console_verbose();
-
-	printk(KERN_EMERG "Asynchronous I/O Bus Error\n");
-	printk(KERN_EMERG "==========================\n");
-
-	if (bcberr & BCBERR_BEME)
-		printk(KERN_EMERG "- Multiple recorded errors\n");
-
-	printk(KERN_EMERG "- Faulting Buses:%s%s%s\n",
-	       bcberr & BCBERR_BEMR_CI  ? " CPU-Ins-Fetch" : "",
-	       bcberr & BCBERR_BEMR_CD  ? " CPU-Data" : "",
-	       bcberr & BCBERR_BEMR_DMA ? " DMA" : "");
-
-	printk(KERN_EMERG "- %s %s access made to %s at address %08x\n",
-	       bcberr &	BCBERR_BEBST ? "Burst" : "Single",
-	       bcberr &	BCBERR_BERW ? "Read" : "Write",
-	       bcberr &	BCBERR_BESB_MON  ? "Monitor Space" :
-	       bcberr &	BCBERR_BESB_IO   ? "Internal CPU I/O Space" :
-	       bcberr &	BCBERR_BESB_EX   ? "External I/O Bus" :
-	       bcberr &	BCBERR_BESB_OPEX ? "External Memory Bus" :
-	       "On Chip Memory",
-	       bcbear
-	       );
-
-	printk(KERN_EMERG "- Detected by the %s\n",
-	       bcberr&BCBERR_BESD ? "Bus Control Unit" : "Slave Bus");
-
-#ifdef CONFIG_PCI
-#define BRIDGEREGB(X) (*(volatile __u8  *)(0xBE040000 + (X)))
-#define BRIDGEREGW(X) (*(volatile __u16 *)(0xBE040000 + (X)))
-#define BRIDGEREGL(X) (*(volatile __u32 *)(0xBE040000 + (X)))
-
-	printk(KERN_EMERG "- PCI Memory Paging Reg:         %08x\n",
-	       *(volatile __u32 *) (0xBFFFFFF4));
-	printk(KERN_EMERG "- PCI Bridge Base Address 0:     %08x\n",
-	       BRIDGEREGL(PCI_BASE_ADDRESS_0));
-	printk(KERN_EMERG "- PCI Bridge AMPCI Base Address: %08x\n",
-	       BRIDGEREGL(0x48));
-	printk(KERN_EMERG "- PCI Bridge Command:                %04hx\n",
-	       BRIDGEREGW(PCI_COMMAND));
-	printk(KERN_EMERG "- PCI Bridge Status:                 %04hx\n",
-	       BRIDGEREGW(PCI_STATUS));
-	printk(KERN_EMERG "- PCI Bridge Int Status:         %08hx\n",
-	       BRIDGEREGL(0x4c));
-#endif
-
-	printk(KERN_EMERG "\n");
-	show_registers(regs);
-
-	panic("Halted due to asynchronous I/O Bus Error\n");
-}
-
-/*
- * handle an exception for which a handler has not yet been installed
- */
-asmlinkage void uninitialised_exception(struct pt_regs *regs,
-					enum exception_code code)
-{
-
-	/* see if gdbstub wants to deal with it */
-	if (debugger_intercept(code, SIGSYS, 0, regs) == 0)
-		return;
-
-	peripheral_leds_display_exception(code);
-	printk(KERN_EMERG "Uninitialised Exception 0x%04x\n", code & 0xFFFF);
-	show_registers(regs);
-
-	for (;;)
-		continue;
-}
-
-/*
- * set an interrupt stub to jump to a handler
- * ! NOTE: this does *not* flush the caches
- */
-void __init __set_intr_stub(enum exception_code code, void *handler)
-{
-	unsigned long addr;
-	u8 *vector = (u8 *)(CONFIG_INTERRUPT_VECTOR_BASE + code);
-
-	addr = (unsigned long) handler - (unsigned long) vector;
-	vector[0] = 0xdc;		/* JMP handler */
-	vector[1] = addr;
-	vector[2] = addr >> 8;
-	vector[3] = addr >> 16;
-	vector[4] = addr >> 24;
-	vector[5] = 0xcb;
-	vector[6] = 0xcb;
-	vector[7] = 0xcb;
-}
-
-/*
- * set an interrupt stub to jump to a handler
- */
-void __init set_intr_stub(enum exception_code code, void *handler)
-{
-	unsigned long addr;
-	u8 *vector = (u8 *)(CONFIG_INTERRUPT_VECTOR_BASE + code);
-	unsigned long flags;
-
-	addr = (unsigned long) handler - (unsigned long) vector;
-
-	flags = arch_local_cli_save();
-
-	vector[0] = 0xdc;		/* JMP handler */
-	vector[1] = addr;
-	vector[2] = addr >> 8;
-	vector[3] = addr >> 16;
-	vector[4] = addr >> 24;
-	vector[5] = 0xcb;
-	vector[6] = 0xcb;
-	vector[7] = 0xcb;
-
-	arch_local_irq_restore(flags);
-
-#ifndef CONFIG_MN10300_CACHE_SNOOP
-	mn10300_dcache_flush_inv();
-	mn10300_icache_inv();
-#endif
-}
-
-/*
- * initialise the exception table
- */
-void __init trap_init(void)
-{
-	set_excp_vector(EXCEP_TRAP,		handle_exception);
-	set_excp_vector(EXCEP_ISTEP,		handle_exception);
-	set_excp_vector(EXCEP_IBREAK,		handle_exception);
-	set_excp_vector(EXCEP_OBREAK,		handle_exception);
-
-	set_excp_vector(EXCEP_PRIVINS,		handle_exception);
-	set_excp_vector(EXCEP_UNIMPINS,		handle_exception);
-	set_excp_vector(EXCEP_UNIMPEXINS,	handle_exception);
-	set_excp_vector(EXCEP_MEMERR,		handle_exception);
-	set_excp_vector(EXCEP_MISALIGN,		misalignment);
-	set_excp_vector(EXCEP_BUSERROR,		handle_exception);
-	set_excp_vector(EXCEP_ILLINSACC,	handle_exception);
-	set_excp_vector(EXCEP_ILLDATACC,	handle_exception);
-	set_excp_vector(EXCEP_IOINSACC,		handle_exception);
-	set_excp_vector(EXCEP_PRIVINSACC,	handle_exception);
-	set_excp_vector(EXCEP_PRIVDATACC,	handle_exception);
-	set_excp_vector(EXCEP_DATINSACC,	handle_exception);
-	set_excp_vector(EXCEP_FPU_UNIMPINS,	handle_exception);
-	set_excp_vector(EXCEP_FPU_OPERATION,	fpu_exception);
-
-	set_excp_vector(EXCEP_NMI,		nmi);
-
-	set_excp_vector(EXCEP_SYSCALL1,		handle_exception);
-	set_excp_vector(EXCEP_SYSCALL2,		handle_exception);
-	set_excp_vector(EXCEP_SYSCALL3,		handle_exception);
-	set_excp_vector(EXCEP_SYSCALL4,		handle_exception);
-	set_excp_vector(EXCEP_SYSCALL5,		handle_exception);
-	set_excp_vector(EXCEP_SYSCALL6,		handle_exception);
-	set_excp_vector(EXCEP_SYSCALL7,		handle_exception);
-	set_excp_vector(EXCEP_SYSCALL8,		handle_exception);
-	set_excp_vector(EXCEP_SYSCALL9,		handle_exception);
-	set_excp_vector(EXCEP_SYSCALL10,	handle_exception);
-	set_excp_vector(EXCEP_SYSCALL11,	handle_exception);
-	set_excp_vector(EXCEP_SYSCALL12,	handle_exception);
-	set_excp_vector(EXCEP_SYSCALL13,	handle_exception);
-	set_excp_vector(EXCEP_SYSCALL14,	handle_exception);
-	set_excp_vector(EXCEP_SYSCALL15,	handle_exception);
-}
-
-/*
- * determine if a program counter value is a valid bug address
- */
-int is_valid_bugaddr(unsigned long pc)
-{
-	return pc >= PAGE_OFFSET;
-}