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Diffstat (limited to 'cpu/mpc512x/traps.c')
| -rw-r--r-- | cpu/mpc512x/traps.c | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/cpu/mpc512x/traps.c b/cpu/mpc512x/traps.c deleted file mode 100644 index 786f4a5..0000000 --- a/cpu/mpc512x/traps.c +++ /dev/null @@ -1,212 +0,0 @@ -/* - * (C) Copyright 2000 - 2007 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - * Derived from the MPC83xx code. - */ - -/* - * This file handles the architecture-dependent parts of hardware - * exceptions - */ - -#include <common.h> -#include <kgdb.h> -#include <asm/processor.h> - -DECLARE_GLOBAL_DATA_PTR; - -extern unsigned long search_exception_table(unsigned long); - -/* - * End of addressable memory. This may be less than the actual - * amount of memory on the system if we're unable to keep all - * the memory mapped in. - */ -extern ulong get_effective_memsize(void); -#define END_OF_MEM (gd->bd->bi_memstart + get_effective_memsize()) - -/* - * Trap & Exception support - */ - -void -print_backtrace (unsigned long *sp) -{ - int cnt = 0; - unsigned long i; - - puts ("Call backtrace: "); - while (sp) { - if ((uint)sp > END_OF_MEM) - break; - - i = sp[1]; - if (cnt++ % 7 == 0) - putc ('\n'); - printf ("%08lX ", i); - if (cnt > 32) break; - sp = (unsigned long *) *sp; - } - putc ('\n'); -} - -void show_regs (struct pt_regs * regs) -{ - int i; - - printf ("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n", - regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar); - printf ("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n", - regs->msr, regs->msr & MSR_EE ? 1 : 0, regs->msr & MSR_PR ? 1 : 0, - regs->msr & MSR_FP ? 1 : 0,regs->msr & MSR_ME ? 1 : 0, - regs->msr & MSR_IR ? 1 : 0, - regs->msr & MSR_DR ? 1 : 0); - - putc ('\n'); - for (i = 0; i < 32; i++) { - if ((i % 8) == 0) { - printf ("GPR%02d: ", i); - } - - printf ("%08lX ", regs->gpr[i]); - if ((i % 8) == 7) { - putc ('\n'); - } - } -} - - -void -_exception (int signr, struct pt_regs *regs) -{ - show_regs (regs); - print_backtrace ((unsigned long *)regs->gpr[1]); - panic ("Exception at pc %lx signal %d", regs->nip,signr); -} - - -void -MachineCheckException (struct pt_regs *regs) -{ - unsigned long fixup; - - if ((fixup = search_exception_table (regs->nip)) != 0) { - regs->nip = fixup; - return; - } - -#ifdef CONFIG_CMD_KGDB - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - - puts ("Machine check.\nCaused by (from msr): "); - printf ("regs %p ",regs); - switch (regs->msr & 0x00FF0000) { - case (0x80000000 >> 10): - puts ("Instruction cache parity signal\n"); - break; - case (0x80000000 >> 11): - puts ("Data cache parity signal\n"); - break; - case (0x80000000 >> 12): - puts ("Machine check signal\n"); - break; - case (0x80000000 >> 13): - puts ("Transfer error ack signal\n"); - break; - case (0x80000000 >> 14): - puts ("Data parity signal\n"); - break; - case (0x80000000 >> 15): - puts ("Address parity signal\n"); - break; - default: - puts ("Unknown values in msr\n"); - } - show_regs (regs); - print_backtrace ((unsigned long *)regs->gpr[1]); - - panic ("machine check"); -} - -void -AlignmentException (struct pt_regs *regs) -{ -#ifdef CONFIG_CMD_KGDB - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - show_regs (regs); - print_backtrace ((unsigned long *)regs->gpr[1]); - panic ("Alignment Exception"); -} - -void -ProgramCheckException (struct pt_regs *regs) -{ -#ifdef CONFIG_CMD_KGDB - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - show_regs (regs); - print_backtrace ((unsigned long *)regs->gpr[1]); - panic ("Program Check Exception"); -} - -void -SoftEmuException (struct pt_regs *regs) -{ -#ifdef CONFIG_CMD_KGDB - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - show_regs (regs); - print_backtrace ((unsigned long *)regs->gpr[1]); - panic ("Software Emulation Exception"); -} - - -void -UnknownException (struct pt_regs *regs) -{ -#ifdef CONFIG_CMD_KGDB - if (debugger_exception_handler && (*debugger_exception_handler)(regs)) - return; -#endif - printf ("Bad trap at PC: %lx, SR: %lx, vector=%lx\n", - regs->nip, regs->msr, regs->trap); - _exception (0, regs); -} - -#ifdef CONFIG_CMD_BEDBUG -extern void do_bedbug_breakpoint (struct pt_regs *); -#endif - -void -DebugException (struct pt_regs *regs) -{ - printf ("Debugger trap at @ %lx\n", regs->nip ); - show_regs (regs); -#ifdef CONFIG_CMD_BEDBUG - do_bedbug_breakpoint (regs); -#endif -} |