powerpc: Remove arch/ppc and include/asm-ppc

[sfrench/cifs-2.6.git] / arch / ppc / kernel / softemu8xx.c

diff --git a/arch/ppc/kernel/softemu8xx.c b/arch/ppc/kernel/softemu8xx.c
deleted file mode 100644 (file)
index 9bbb6bf..0000000
--- a/arch/ppc/kernel/softemu8xx.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * Software emulation of some PPC instructions for the 8xx core.
- *
- * Copyright (C) 1998 Dan Malek (dmalek@jlc.net)
- *
- * Software floating emuation for the MPC8xx processor.  I did this mostly
- * because it was easier than trying to get the libraries compiled for
- * software floating point.  The goal is still to get the libraries done,
- * but I lost patience and needed some hacks to at least get init and
- * shells running.  The first problem is the setjmp/longjmp that save
- * and restore the floating point registers.
- *
- * For this emulation, our working registers are found on the register
- * save area.
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/interrupt.h>
-
-#include <asm/pgtable.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-
-extern void
-print_8xx_pte(struct mm_struct *mm, unsigned long addr);
-extern int
-get_8xx_pte(struct mm_struct *mm, unsigned long addr);
-
-/* Eventually we may need a look-up table, but this works for now.
-*/
-#define LFS    48
-#define LFD    50
-#define LFDU   51
-#define STFD   54
-#define STFDU  55
-#define FMR    63
-
-/*
- * We return 0 on success, 1 on unimplemented instruction, and EFAULT
- * if a load/store faulted.
- */
-int
-Soft_emulate_8xx(struct pt_regs *regs)
-{
-       uint    inst, instword;
-       uint    flreg, idxreg, disp;
-       uint    retval;
-       signed short sdisp;
-       uint    *ea, *ip;
-
-       retval = 0;
-
-       instword = *((uint *)regs->nip);
-       inst = instword >> 26;
-
-       flreg = (instword >> 21) & 0x1f;
-       idxreg = (instword >> 16) & 0x1f;
-       disp = instword & 0xffff;
-
-       ea = (uint *)(regs->gpr[idxreg] + disp);
-       ip = (uint *)&current->thread.fpr[flreg];
-
-       switch ( inst )
-       {
-       case LFD:
-               /* this is a 16 bit quantity that is sign extended
-                * so use a signed short here -- Cort
-                */
-               sdisp = (instword & 0xffff);
-               ea = (uint *)(regs->gpr[idxreg] + sdisp);
-               if (copy_from_user(ip, ea, sizeof(double)))
-                       retval = -EFAULT;
-               break;
-               
-       case LFDU:
-               if (copy_from_user(ip, ea, sizeof(double)))
-                       retval = -EFAULT;
-               else
-                       regs->gpr[idxreg] = (uint)ea;
-               break;
-       case LFS:
-               sdisp = (instword & 0xffff);
-               ea = (uint *)(regs->gpr[idxreg] + sdisp);
-               if (copy_from_user(ip, ea, sizeof(float)))
-                       retval = -EFAULT;
-               break;
-       case STFD:
-               /* this is a 16 bit quantity that is sign extended
-                * so use a signed short here -- Cort
-                */
-               sdisp = (instword & 0xffff);
-               ea = (uint *)(regs->gpr[idxreg] + sdisp);
-               if (copy_to_user(ea, ip, sizeof(double)))
-                       retval = -EFAULT;
-               break;
-
-       case STFDU:
-               if (copy_to_user(ea, ip, sizeof(double)))
-                       retval = -EFAULT;
-               else
-                       regs->gpr[idxreg] = (uint)ea;
-               break;
-       case FMR:
-               /* assume this is a fp move -- Cort */
-               memcpy( ip, &current->thread.fpr[(instword>>11)&0x1f],
-                       sizeof(double) );
-               break;
-       default:
-               retval = 1;
-               printk("Bad emulation %s/%d\n"
-                      " NIP: %08lx instruction: %08x opcode: %x "
-                      "A: %x B: %x C: %x code: %x rc: %x\n",
-                      current->comm,current->pid,
-                      regs->nip,
-                      instword,inst,
-                      (instword>>16)&0x1f,
-                      (instword>>11)&0x1f,
-                      (instword>>6)&0x1f,
-                      (instword>>1)&0x3ff,
-                      instword&1);
-               {
-                       int pa;
-                       print_8xx_pte(current->mm,regs->nip);
-                       pa = get_8xx_pte(current->mm,regs->nip) & PAGE_MASK;
-                       pa |= (regs->nip & ~PAGE_MASK);
-                       pa = (unsigned long)__va(pa);
-                       printk("Kernel VA for NIP %x ", pa);
-                       print_8xx_pte(current->mm,pa);
-               }
-               
-       }
-
-       if (retval == 0)
-               regs->nip += 4;
-       return(retval);
-}
-