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-rw-r--r--arch/cris/arch-v10/kernel/traps.c134
1 files changed, 0 insertions, 134 deletions
diff --git a/arch/cris/arch-v10/kernel/traps.c b/arch/cris/arch-v10/kernel/traps.c
deleted file mode 100644
index 876d45b957f4..000000000000
--- a/arch/cris/arch-v10/kernel/traps.c
+++ /dev/null
@@ -1,134 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Helper functions for trap handlers
- *
- * Copyright (C) 2000-2007, Axis Communications AB.
- *
- * Authors: Bjorn Wesen
- * Hans-Peter Nilsson
- *
- */
-
-#include <linux/ptrace.h>
-#include <linux/uaccess.h>
-#include <linux/sched/debug.h>
-
-#include <arch/sv_addr_ag.h>
-#include <arch/system.h>
-
-void
-show_registers(struct pt_regs *regs)
-{
- /*
- * It's possible to use either the USP register or current->thread.usp.
- * USP might not correspond to the current process for all cases this
- * function is called, and current->thread.usp isn't up to date for the
- * current process. Experience shows that using USP is the way to go.
- */
- unsigned long usp = rdusp();
-
- printk("IRP: %08lx SRP: %08lx DCCR: %08lx USP: %08lx MOF: %08lx\n",
- regs->irp, regs->srp, regs->dccr, usp, regs->mof);
-
- printk(" r0: %08lx r1: %08lx r2: %08lx r3: %08lx\n",
- regs->r0, regs->r1, regs->r2, regs->r3);
-
- printk(" r4: %08lx r5: %08lx r6: %08lx r7: %08lx\n",
- regs->r4, regs->r5, regs->r6, regs->r7);
-
- printk(" r8: %08lx r9: %08lx r10: %08lx r11: %08lx\n",
- regs->r8, regs->r9, regs->r10, regs->r11);
-
- printk("r12: %08lx r13: %08lx oR10: %08lx sp: %08lx\n",
- regs->r12, regs->r13, regs->orig_r10, (long unsigned)regs);
-
- printk("R_MMU_CAUSE: %08lx\n", (unsigned long)*R_MMU_CAUSE);
-
- printk("Process %s (pid: %d, stackpage=%08lx)\n",
- current->comm, current->pid, (unsigned long)current);
-
- /*
- * When in-kernel, we also print out the stack and code at the
- * time of the fault..
- */
- if (!user_mode(regs)) {
- int i;
-
- show_stack(NULL, (unsigned long *)usp);
-
- /*
- * If the previous stack-dump wasn't a kernel one, dump the
- * kernel stack now.
- */
- if (usp != 0)
- show_stack(NULL, NULL);
-
- printk("\nCode: ");
-
- if (regs->irp < PAGE_OFFSET)
- goto bad_value;
-
- /*
- * Quite often the value at regs->irp doesn't point to the
- * interesting instruction, which often is the previous
- * instruction. So dump at an offset large enough that the
- * instruction decoding should be in sync at the interesting
- * point, but small enough to fit on a row. The regs->irp
- * location is pointed out in a ksymoops-friendly way by
- * wrapping the byte for that address in parenthesises.
- */
- for (i = -12; i < 12; i++) {
- unsigned char c;
-
- if (__get_user(c, &((unsigned char *)regs->irp)[i])) {
-bad_value:
- printk(" Bad IP value.");
- break;
- }
-
- if (i == 0)
- printk("(%02x) ", c);
- else
- printk("%02x ", c);
- }
- printk("\n");
- }
-}
-
-void
-arch_enable_nmi(void)
-{
- asm volatile ("setf m");
-}
-
-extern void (*nmi_handler)(struct pt_regs *);
-void handle_nmi(struct pt_regs *regs)
-{
- if (nmi_handler)
- nmi_handler(regs);
-
- /* Wait until nmi is no longer active. (We enable NMI immediately after
- returning from this function, and we don't want it happening while
- exiting from the NMI interrupt handler.) */
- while (*R_IRQ_MASK0_RD & IO_STATE(R_IRQ_MASK0_RD, nmi_pin, active))
- ;
-}
-
-#ifdef CONFIG_DEBUG_BUGVERBOSE
-void
-handle_BUG(struct pt_regs *regs)
-{
- struct bug_frame f;
- unsigned char c;
- unsigned long irp = regs->irp;
-
- if (__copy_from_user(&f, (const void __user *)(irp - 8), sizeof f))
- return;
- if (f.prefix != BUG_PREFIX || f.magic != BUG_MAGIC)
- return;
- if (__get_user(c, f.filename))
- f.filename = "<bad filename>";
-
- printk("kernel BUG at %s:%d!\n", f.filename, f.line);
-}
-#endif