CRIS: Drop support for the CRIS port

[sfrench/cifs-2.6.git] / arch / cris / arch-v10 / kernel / traps.c

diff --git a/arch/cris/arch-v10/kernel/traps.c b/arch/cris/arch-v10/kernel/traps.c
deleted file mode 100644 (file)
index 876d45b..0000000
--- 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