51533b615e
New CRIS sub architecture named v32. From: Dave Jones <davej@redhat.com> Fix swapped kmalloc args Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
161 lines
3.8 KiB
C
161 lines
3.8 KiB
C
/*
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* Copyright (C) 2003, Axis Communications AB.
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*/
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#include <linux/config.h>
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#include <linux/ptrace.h>
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#include <asm/uaccess.h>
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#include <asm/arch/hwregs/supp_reg.h>
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extern void reset_watchdog(void);
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extern void stop_watchdog(void);
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extern int raw_printk(const char *fmt, ...);
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void
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show_registers(struct pt_regs *regs)
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{
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/*
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* It's possible to use either the USP register or current->thread.usp.
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* USP might not correspond to the current proccess for all cases this
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* function is called, and current->thread.usp isn't up to date for the
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* current proccess. Experience shows that using USP is the way to go.
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*/
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unsigned long usp;
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unsigned long d_mmu_cause;
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unsigned long i_mmu_cause;
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usp = rdusp();
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raw_printk("CPU: %d\n", smp_processor_id());
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raw_printk("ERP: %08lx SRP: %08lx CCS: %08lx USP: %08lx MOF: %08lx\n",
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regs->erp, regs->srp, regs->ccs, usp, regs->mof);
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raw_printk(" r0: %08lx r1: %08lx r2: %08lx r3: %08lx\n",
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regs->r0, regs->r1, regs->r2, regs->r3);
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raw_printk(" r4: %08lx r5: %08lx r6: %08lx r7: %08lx\n",
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regs->r4, regs->r5, regs->r6, regs->r7);
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raw_printk(" r8: %08lx r9: %08lx r10: %08lx r11: %08lx\n",
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regs->r8, regs->r9, regs->r10, regs->r11);
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raw_printk("r12: %08lx r13: %08lx oR10: %08lx acr: %08lx\n",
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regs->r12, regs->r13, regs->orig_r10, regs->acr);
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raw_printk("sp: %08lx\n", regs);
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SUPP_BANK_SEL(BANK_IM);
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SUPP_REG_RD(RW_MM_CAUSE, i_mmu_cause);
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SUPP_BANK_SEL(BANK_DM);
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SUPP_REG_RD(RW_MM_CAUSE, d_mmu_cause);
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raw_printk(" Data MMU Cause: %08lx\n", d_mmu_cause);
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raw_printk("Instruction MMU Cause: %08lx\n", i_mmu_cause);
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raw_printk("Process %s (pid: %d, stackpage: %08lx)\n",
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current->comm, current->pid, (unsigned long) current);
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/* Show additional info if in kernel-mode. */
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if (!user_mode(regs)) {
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int i;
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unsigned char c;
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show_stack(NULL, (unsigned long *) usp);
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/*
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* If the previous stack-dump wasn't a kernel one, dump the
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* kernel stack now.
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*/
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if (usp != 0)
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show_stack(NULL, NULL);
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raw_printk("\nCode: ");
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if (regs->erp < PAGE_OFFSET)
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goto bad_value;
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/*
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* Quite often the value at regs->erp doesn't point to the
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* interesting instruction, which often is the previous
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* instruction. So dump at an offset large enough that the
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* instruction decoding should be in sync at the interesting
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* point, but small enough to fit on a row. The regs->erp
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* location is pointed out in a ksymoops-friendly way by
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* wrapping the byte for that address in parenthesis.
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*/
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for (i = -12; i < 12; i++) {
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if (__get_user(c, &((unsigned char *) regs->erp)[i])) {
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bad_value:
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raw_printk(" Bad IP value.");
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break;
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}
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if (i == 0)
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raw_printk("(%02x) ", c);
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else
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raw_printk("%02x ", c);
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}
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raw_printk("\n");
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}
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}
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/*
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* This gets called from entry.S when the watchdog has bitten. Show something
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* similiar to an Oops dump, and if the kernel if configured to be a nice doggy;
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* halt instead of reboot.
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*/
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void
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watchdog_bite_hook(struct pt_regs *regs)
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{
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#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
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local_irq_disable();
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stop_watchdog();
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show_registers(regs);
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while (1)
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; /* Do nothing. */
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#else
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show_registers(regs);
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#endif
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}
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/* This is normally the Oops function. */
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void
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die_if_kernel(const char *str, struct pt_regs *regs, long err)
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{
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if (user_mode(regs))
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return;
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#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
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/*
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* This printout might take too long and could trigger
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* the watchdog normally. If NICE_DOGGY is set, simply
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* stop the watchdog during the printout.
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*/
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stop_watchdog();
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#endif
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raw_printk("%s: %04lx\n", str, err & 0xffff);
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show_registers(regs);
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#ifdef CONFIG_ETRAX_WATCHDOG_NICE_DOGGY
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reset_watchdog();
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#endif
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do_exit(SIGSEGV);
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}
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void arch_enable_nmi(void)
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{
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unsigned long flags;
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local_save_flags(flags);
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flags |= (1<<30); /* NMI M flag is at bit 30 */
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local_irq_restore(flags);
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}
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