diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc512x/traps.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc512x/traps.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/arch/powerpc/cpu/mpc512x/traps.c b/arch/powerpc/cpu/mpc512x/traps.c deleted file mode 100644 index 9f5bcd7fc3..0000000000 --- a/arch/powerpc/cpu/mpc512x/traps.c +++ /dev/null @@ -1,190 +0,0 @@ -/* - * (C) Copyright 2000 - 2007 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org) - * - * SPDX-License-Identifier: GPL-2.0+ - * - * 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. - */ -#define END_OF_MEM (gd->bd->bi_memstart + get_effective_memsize()) - -/* - * Trap & Exception support - */ - -static 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'); - } - } -} - - -static 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 = search_exception_table(regs->nip); - - if (fixup) { - 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 -} |