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

All the maintained platforms are now in arch/powerpc, so the old
arch/ppc stuff can now go away.

Acked-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Jochen Friedrich <jochen@scram.de>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>

13 files changed, 0 insertions, 3131 deletions

diff --git a/arch/ppc/mm/44x_mmu.c b/arch/ppc/mm/44x_mmu.c
deleted file mode 100644
index fbb577a0d16..00000000000
--- a/arch/ppc/mm/44x_mmu.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Modifications by Matt Porter (mporter@mvista.com) to support
- * PPC44x Book E processors.
- *
- * This file contains the routines for initializing the MMU
- * on the 4xx series of chips.
- *  -- paulus
- *
- *  Derived from arch/ppc/mm/init.c:
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
- *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
- *    Copyright (C) 1996 Paul Mackerras
- *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
- *
- *  Derived from "arch/i386/mm/init.c"
- *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/stddef.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/highmem.h>
-
-#include <asm/pgalloc.h>
-#include <asm/prom.h>
-#include <asm/io.h>
-#include <asm/mmu_context.h>
-#include <asm/pgtable.h>
-#include <asm/mmu.h>
-#include <asm/uaccess.h>
-#include <asm/smp.h>
-#include <asm/bootx.h>
-#include <asm/machdep.h>
-#include <asm/setup.h>
-
-#include "mmu_decl.h"
-
-extern char etext[], _stext[];
-
-/* Used by the 44x TLB replacement exception handler.
- * Just needed it declared someplace.
- */
-unsigned int tlb_44x_index = 0;
-unsigned int tlb_44x_hwater = PPC4XX_TLB_SIZE - 1 - PPC44x_EARLY_TLBS;
-int icache_44x_need_flush;
-
-/*
- * "Pins" a 256MB TLB entry in AS0 for kernel lowmem
- */
-static void __init ppc44x_pin_tlb(unsigned int virt, unsigned int phys)
-{
-	__asm__ __volatile__(
-		"tlbwe	%2,%3,%4\n"
-		"tlbwe	%1,%3,%5\n"
-		"tlbwe	%0,%3,%6\n"
-	:
-	: "r" (PPC44x_TLB_SW | PPC44x_TLB_SR | PPC44x_TLB_SX | PPC44x_TLB_G),
-	  "r" (phys),
-	  "r" (virt | PPC44x_TLB_VALID | PPC44x_TLB_256M),
-	  "r" (tlb_44x_hwater--), /* slot for this TLB entry */
-	  "i" (PPC44x_TLB_PAGEID),
-	  "i" (PPC44x_TLB_XLAT),
-	  "i" (PPC44x_TLB_ATTRIB));
-}
-
-void __init MMU_init_hw(void)
-{
-	flush_instruction_cache();
-}
-
-unsigned long __init mmu_mapin_ram(void)
-{
-	unsigned long addr;
-
-	/* Pin in enough TLBs to cover any lowmem not covered by the
-	 * initial 256M mapping established in head_44x.S */
-	for (addr = PPC_PIN_SIZE; addr < total_lowmem;
-	     addr += PPC_PIN_SIZE)
-		ppc44x_pin_tlb(addr + PAGE_OFFSET, addr);
-
-	return total_lowmem;
-}
diff --git a/arch/ppc/mm/4xx_mmu.c b/arch/ppc/mm/4xx_mmu.c
deleted file mode 100644
index ea785dbaac7..00000000000
--- a/arch/ppc/mm/4xx_mmu.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * This file contains the routines for initializing the MMU
- * on the 4xx series of chips.
- *  -- paulus
- *
- *  Derived from arch/ppc/mm/init.c:
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- *  Modifications by Paul Mackerras (PowerMac) (paulus@cs.anu.edu.au)
- *  and Cort Dougan (PReP) (cort@cs.nmt.edu)
- *    Copyright (C) 1996 Paul Mackerras
- *  Amiga/APUS changes by Jesper Skov (jskov@cygnus.co.uk).
- *
- *  Derived from "arch/i386/mm/init.c"
- *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/stddef.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/highmem.h>
-
-#include <asm/pgalloc.h>
-#include <asm/prom.h>
-#include <asm/io.h>
-#include <asm/mmu_context.h>
-#include <asm/pgtable.h>
-#include <asm/mmu.h>
-#include <asm/uaccess.h>
-#include <asm/smp.h>
-#include <asm/bootx.h>
-#include <asm/machdep.h>
-#include <asm/setup.h>
-#include "mmu_decl.h"
-
-extern int __map_without_ltlbs;
-/*
- * MMU_init_hw does the chip-specific initialization of the MMU hardware.
- */
-void __init MMU_init_hw(void)
-{
-	/*
-	 * The Zone Protection Register (ZPR) defines how protection will
-	 * be applied to every page which is a member of a given zone. At
-	 * present, we utilize only two of the 4xx's zones.
-	 * The zone index bits (of ZSEL) in the PTE are used for software
-	 * indicators, except the LSB.  For user access, zone 1 is used,
-	 * for kernel access, zone 0 is used.  We set all but zone 1
-	 * to zero, allowing only kernel access as indicated in the PTE.
-	 * For zone 1, we set a 01 binary (a value of 10 will not work)
-	 * to allow user access as indicated in the PTE.  This also allows
-	 * kernel access as indicated in the PTE.
-	 */
-
-        mtspr(SPRN_ZPR, 0x10000000);
-
-	flush_instruction_cache();
-
-	/*
-	 * Set up the real-mode cache parameters for the exception vector
-	 * handlers (which are run in real-mode).
-	 */
-
-        mtspr(SPRN_DCWR, 0x00000000);	/* All caching is write-back */
-
-        /*
-	 * Cache instruction and data space where the exception
-	 * vectors and the kernel live in real-mode.
-	 */
-
-        mtspr(SPRN_DCCR, 0xF0000000);	/* 512 MB of data space at 0x0. */
-        mtspr(SPRN_ICCR, 0xF0000000);	/* 512 MB of instr. space at 0x0. */
-}
-
-#define LARGE_PAGE_SIZE_16M	(1<<24)
-#define LARGE_PAGE_SIZE_4M	(1<<22)
-
-unsigned long __init mmu_mapin_ram(void)
-{
-	unsigned long v, s;
-	phys_addr_t p;
-
-	v = KERNELBASE;
-	p = PPC_MEMSTART;
-	s = total_lowmem;
-
-	if (__map_without_ltlbs)
-		return 0;
-
-	while (s >= LARGE_PAGE_SIZE_16M) {
-		pmd_t *pmdp;
-		unsigned long val = p | _PMD_SIZE_16M | _PAGE_HWEXEC | _PAGE_HWWRITE;
-
-		pmdp = pmd_offset(pgd_offset_k(v), v);
-		pmd_val(*pmdp++) = val;
-		pmd_val(*pmdp++) = val;
-		pmd_val(*pmdp++) = val;
-		pmd_val(*pmdp++) = val;
-
-		v += LARGE_PAGE_SIZE_16M;
-		p += LARGE_PAGE_SIZE_16M;
-		s -= LARGE_PAGE_SIZE_16M;
-	}
-
-	while (s >= LARGE_PAGE_SIZE_4M) {
-		pmd_t *pmdp;
-		unsigned long val = p | _PMD_SIZE_4M | _PAGE_HWEXEC | _PAGE_HWWRITE;
-
-		pmdp = pmd_offset(pgd_offset_k(v), v);
-		pmd_val(*pmdp) = val;
-
-		v += LARGE_PAGE_SIZE_4M;
-		p += LARGE_PAGE_SIZE_4M;
-		s -= LARGE_PAGE_SIZE_4M;
-	}
-
-	return total_lowmem - s;
-}
diff --git a/arch/ppc/mm/Makefile b/arch/ppc/mm/Makefile
deleted file mode 100644
index 691ba2bae05..00000000000
--- a/arch/ppc/mm/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-#
-# Makefile for the linux ppc-specific parts of the memory manager.
-#
-
-obj-y				:= fault.o init.o mem_pieces.o \
-					mmu_context.o pgtable.o
-
-obj-$(CONFIG_PPC_STD_MMU)	+= hashtable.o ppc_mmu.o tlb.o
-obj-$(CONFIG_40x)		+= 4xx_mmu.o
-obj-$(CONFIG_44x)		+= 44x_mmu.o
diff --git a/arch/ppc/mm/fault.c b/arch/ppc/mm/fault.c
deleted file mode 100644
index 36c0e7529ed..00000000000
--- a/arch/ppc/mm/fault.c
+++ /dev/null
@@ -1,436 +0,0 @@
-/*
- *  PowerPC version
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *
- *  Derived from "arch/i386/mm/fault.c"
- *    Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
- *
- *  Modified by Cort Dougan and Paul Mackerras.
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/highmem.h>
-#include <linux/module.h>
-
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/mmu.h>
-#include <asm/mmu_context.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/tlbflush.h>
-
-#if defined(CONFIG_XMON) || defined(CONFIG_KGDB)
-extern void (*debugger)(struct pt_regs *);
-extern void (*debugger_fault_handler)(struct pt_regs *);
-extern int (*debugger_dabr_match)(struct pt_regs *);
-int debugger_kernel_faults = 1;
-#endif
-
-unsigned long htab_reloads;	/* updated by hashtable.S:hash_page() */
-unsigned long htab_evicts; 	/* updated by hashtable.S:hash_page() */
-unsigned long htab_preloads;	/* updated by hashtable.S:add_hash_page() */
-unsigned long pte_misses;	/* updated by do_page_fault() */
-unsigned long pte_errors;	/* updated by do_page_fault() */
-unsigned int probingmem;
-
-/*
- * Check whether the instruction at regs->nip is a store using
- * an update addressing form which will update r1.
- */
-static int store_updates_sp(struct pt_regs *regs)
-{
-	unsigned int inst;
-
-	if (get_user(inst, (unsigned int __user *)regs->nip))
-		return 0;
-	/* check for 1 in the rA field */
-	if (((inst >> 16) & 0x1f) != 1)
-		return 0;
-	/* check major opcode */
-	switch (inst >> 26) {
-	case 37:	/* stwu */
-	case 39:	/* stbu */
-	case 45:	/* sthu */
-	case 53:	/* stfsu */
-	case 55:	/* stfdu */
-		return 1;
-	case 31:
-		/* check minor opcode */
-		switch ((inst >> 1) & 0x3ff) {
-		case 183:	/* stwux */
-		case 247:	/* stbux */
-		case 439:	/* sthux */
-		case 695:	/* stfsux */
-		case 759:	/* stfdux */
-			return 1;
-		}
-	}
-	return 0;
-}
-
-/*
- * For 600- and 800-family processors, the error_code parameter is DSISR
- * for a data fault, SRR1 for an instruction fault. For 400-family processors
- * the error_code parameter is ESR for a data fault, 0 for an instruction
- * fault.
- */
-int do_page_fault(struct pt_regs *regs, unsigned long address,
-		  unsigned long error_code)
-{
-	struct vm_area_struct * vma;
-	struct mm_struct *mm = current->mm;
-	siginfo_t info;
-	int code = SEGV_MAPERR;
-	int fault;
-#if defined(CONFIG_4xx) || defined (CONFIG_BOOKE)
-	int is_write = error_code & ESR_DST;
-#else
-	int is_write = 0;
-
-	/*
-	 * Fortunately the bit assignments in SRR1 for an instruction
-	 * fault and DSISR for a data fault are mostly the same for the
-	 * bits we are interested in.  But there are some bits which
-	 * indicate errors in DSISR but can validly be set in SRR1.
-	 */
-	if (TRAP(regs) == 0x400)
-		error_code &= 0x48200000;
-	else
-		is_write = error_code & 0x02000000;
-#endif /* CONFIG_4xx || CONFIG_BOOKE */
-
-#if defined(CONFIG_XMON) || defined(CONFIG_KGDB)
-	if (debugger_fault_handler && TRAP(regs) == 0x300) {
-		debugger_fault_handler(regs);
-		return 0;
-	}
-#if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
-	if (error_code & 0x00400000) {
-		/* DABR match */
-		if (debugger_dabr_match(regs))
-			return 0;
-	}
-#endif /* !(CONFIG_4xx || CONFIG_BOOKE)*/
-#endif /* CONFIG_XMON || CONFIG_KGDB */
-
-	if (in_atomic() || mm == NULL)
-		return SIGSEGV;
-
-	down_read(&mm->mmap_sem);
-	vma = find_vma(mm, address);
-	if (!vma)
-		goto bad_area;
-	if (vma->vm_start <= address)
-		goto good_area;
-	if (!(vma->vm_flags & VM_GROWSDOWN))
-		goto bad_area;
-	if (!is_write)
-                goto bad_area;
-
-	/*
-	 * N.B. The rs6000/xcoff ABI allows programs to access up to
-	 * a few hundred bytes below the stack pointer.
-	 * The kernel signal delivery code writes up to about 1.5kB
-	 * below the stack pointer (r1) before decrementing it.
-	 * The exec code can write slightly over 640kB to the stack
-	 * before setting the user r1.  Thus we allow the stack to
-	 * expand to 1MB without further checks.
-	 */
-	if (address + 0x100000 < vma->vm_end) {
-		/* get user regs even if this fault is in kernel mode */
-		struct pt_regs *uregs = current->thread.regs;
-		if (uregs == NULL)
-			goto bad_area;
-
-		/*
-		 * A user-mode access to an address a long way below
-		 * the stack pointer is only valid if the instruction
-		 * is one which would update the stack pointer to the
-		 * address accessed if the instruction completed,
-		 * i.e. either stwu rs,n(r1) or stwux rs,r1,rb
-		 * (or the byte, halfword, float or double forms).
-		 *
-		 * If we don't check this then any write to the area
-		 * between the last mapped region and the stack will
-		 * expand the stack rather than segfaulting.
-		 */
-		if (address + 2048 < uregs->gpr[1]
-		    && (!user_mode(regs) || !store_updates_sp(regs)))
-			goto bad_area;
-	}
-	if (expand_stack(vma, address))
-		goto bad_area;
-
-good_area:
-	code = SEGV_ACCERR;
-#if defined(CONFIG_6xx)
-	if (error_code & 0x95700000)
-		/* an error such as lwarx to I/O controller space,
-		   address matching DABR, eciwx, etc. */
-		goto bad_area;
-#endif /* CONFIG_6xx */
-#if defined(CONFIG_8xx)
-        /* The MPC8xx seems to always set 0x80000000, which is
-         * "undefined".  Of those that can be set, this is the only
-         * one which seems bad.
-         */
-	if (error_code & 0x10000000)
-                /* Guarded storage error. */
-		goto bad_area;
-#endif /* CONFIG_8xx */
-
-	/* a write */
-	if (is_write) {
-		if (!(vma->vm_flags & VM_WRITE))
-			goto bad_area;
-#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
-	/* an exec  - 4xx/Book-E allows for per-page execute permission */
-	} else if (TRAP(regs) == 0x400) {
-		pte_t *ptep;
-		pmd_t *pmdp;
-
-#if 0
-		/* It would be nice to actually enforce the VM execute
-		   permission on CPUs which can do so, but far too
-		   much stuff in userspace doesn't get the permissions
-		   right, so we let any page be executed for now. */
-		if (! (vma->vm_flags & VM_EXEC))
-			goto bad_area;
-#endif
-
-		/* Since 4xx/Book-E supports per-page execute permission,
-		 * we lazily flush dcache to icache. */
-		ptep = NULL;
-		if (get_pteptr(mm, address, &ptep, &pmdp)) {
-			spinlock_t *ptl = pte_lockptr(mm, pmdp);
-			spin_lock(ptl);
-			if (pte_present(*ptep)) {
-				struct page *page = pte_page(*ptep);
-
-				if (!test_bit(PG_arch_1, &page->flags)) {
-					flush_dcache_icache_page(page);
-					set_bit(PG_arch_1, &page->flags);
-				}
-				pte_update(ptep, 0, _PAGE_HWEXEC);
-				_tlbie(address, mm->context.id);
-				pte_unmap_unlock(ptep, ptl);
-				up_read(&mm->mmap_sem);
-				return 0;
-			}
-			pte_unmap_unlock(ptep, ptl);
-		}
-#endif
-	/* a read */
-	} else {
-		/* protection fault */
-		if (error_code & 0x08000000)
-			goto bad_area;
-		if (!(vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)))
-			goto bad_area;
-	}
-
-	/*
-	 * If for any reason at all we couldn't handle the fault,
-	 * make sure we exit gracefully rather than endlessly redo
-	 * the fault.
-	 */
- survive:
-	fault = handle_mm_fault(mm, vma, address, is_write);
-	if (unlikely(fault & VM_FAULT_ERROR)) {
-		if (fault & VM_FAULT_OOM)
-			goto out_of_memory;
-		else if (fault & VM_FAULT_SIGBUS)
-			goto do_sigbus;
-		BUG();
-	}
-	if (fault & VM_FAULT_MAJOR)
-		current->maj_flt++;
-	else
-		current->min_flt++;
-
-	up_read(&mm->mmap_sem);
-	/*
-	 * keep track of tlb+htab misses that are good addrs but
-	 * just need pte's created via handle_mm_fault()
-	 * -- Cort
-	 */
-	pte_misses++;
-	return 0;
-
-bad_area:
-	up_read(&mm->mmap_sem);
-	pte_errors++;
-
-	/* User mode accesses cause a SIGSEGV */
-	if (user_mode(regs)) {
-		_exception(SIGSEGV, regs, code, address);
-		return 0;
-	}
-
-	return SIGSEGV;
-
-/*
- * We ran out of memory, or some other thing happened to us that made
- * us unable to handle the page fault gracefully.
- */
-out_of_memory:
-	up_read(&mm->mmap_sem);
-	if (is_global_init(current)) {
-		yield();
-		down_read(&mm->mmap_sem);
-		goto survive;
-	}
-	printk("VM: killing process %s\n", current->comm);
-	if (user_mode(regs))
-		do_group_exit(SIGKILL);
-	return SIGKILL;
-
-do_sigbus:
-	up_read(&mm->mmap_sem);
-	info.si_signo = SIGBUS;
-	info.si_errno = 0;
-	info.si_code = BUS_ADRERR;
-	info.si_addr = (void __user *)address;
-	force_sig_info (SIGBUS, &info, current);
-	if (!user_mode(regs))
-		return SIGBUS;
-	return 0;
-}
-
-/*
- * bad_page_fault is called when we have a bad access from the kernel.
- * It is called from the DSI and ISI handlers in head.S and from some
- * of the procedures in traps.c.
- */
-void
-bad_page_fault(struct pt_regs *regs, unsigned long address, int sig)
-{
-	const struct exception_table_entry *entry;
-
-	/* Are we prepared to handle this fault?  */
-	if ((entry = search_exception_tables(regs->nip)) != NULL) {
-		regs->nip = entry->fixup;
-		return;
-	}
-
-	/* kernel has accessed a bad area */
-#if defined(CONFIG_XMON) || defined(CONFIG_KGDB)
-	if (debugger_kernel_faults)
-		debugger(regs);
-#endif
-	die("kernel access of bad area", regs, sig);
-}
-
-#ifdef CONFIG_8xx
-
-/* The pgtable.h claims some functions generically exist, but I
- * can't find them......
- */
-pte_t *va_to_pte(unsigned long address)
-{
-	pgd_t *dir;
-	pmd_t *pmd;
-	pte_t *pte;
-
-	if (address < TASK_SIZE)
-		return NULL;
-
-	dir = pgd_offset(&init_mm, address);
-	if (dir) {
-		pmd = pmd_offset(dir, address & PAGE_MASK);
-		if (pmd && pmd_present(*pmd)) {
-			pte = pte_offset_kernel(pmd, address & PAGE_MASK);
-			if (pte && pte_present(*pte))
-				return(pte);
-		}
-	}
-	return NULL;
-}
-
-unsigned long va_to_phys(unsigned long address)
-{
-	pte_t *pte;
-
-	pte = va_to_pte(address);
-	if (pte)
-		return(((unsigned long)(pte_val(*pte)) & PAGE_MASK) | (address & ~(PAGE_MASK)));
-	return (0);
-}
-
-void
-print_8xx_pte(struct mm_struct *mm, unsigned long addr)
-{
-        pgd_t * pgd;
-        pmd_t * pmd;
-        pte_t * pte;
-
-        printk(" pte @ 0x%8lx: ", addr);
-        pgd = pgd_offset(mm, addr & PAGE_MASK);
-        if (pgd) {
-                pmd = pmd_offset(pgd, addr & PAGE_MASK);
-                if (pmd && pmd_present(*pmd)) {
-                        pte = pte_offset_kernel(pmd, addr & PAGE_MASK);
-                        if (pte) {
-                                printk(" (0x%08lx)->(0x%08lx)->0x%08lx\n",
-                                        (long)pgd, (long)pte, (long)pte_val(*pte));
-#define pp ((long)pte_val(*pte))			
-				printk(" RPN: %05lx PP: %lx SPS: %lx SH: %lx "
-				       "CI: %lx v: %lx\n",
-				       pp>>12,    /* rpn */
-				       (pp>>10)&3, /* pp */
-				       (pp>>3)&1, /* small */
-				       (pp>>2)&1, /* shared */
-				       (pp>>1)&1, /* cache inhibit */
-				       pp&1       /* valid */
-				       );
-#undef pp			
-                        }
-                        else {
-                                printk("no pte\n");
-                        }
-                }
-                else {
-                        printk("no pmd\n");
-                }
-        }
-        else {
-                printk("no pgd\n");
-        }
-}
-
-int
-get_8xx_pte(struct mm_struct *mm, unsigned long addr)
-{
-        pgd_t * pgd;
-        pmd_t * pmd;
-        pte_t * pte;
-        int     retval = 0;
-
-        pgd = pgd_offset(mm, addr & PAGE_MASK);
-        if (pgd) {
-                pmd = pmd_offset(pgd, addr & PAGE_MASK);
-                if (pmd && pmd_present(*pmd)) {
-                        pte = pte_offset_kernel(pmd, addr & PAGE_MASK);
-                        if (pte) {
-				retval = (int)pte_val(*pte);
-                        }
-                }
-        }
-        return(retval);
-}
-#endif /* CONFIG_8xx */
diff --git a/arch/ppc/mm/hashtable.S b/arch/ppc/mm/hashtable.S
deleted file mode 100644
index 5f364dc5015..00000000000
--- a/arch/ppc/mm/hashtable.S
+++ /dev/null
@@ -1,617 +0,0 @@
-/*
- *  $Id: hashtable.S,v 1.6 1999/10/08 01:56:15 paulus Exp $
- *
- *  PowerPC version
- *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
- *  Rewritten by Cort Dougan (cort@cs.nmt.edu) for PReP
- *    Copyright (C) 1996 Cort Dougan <cort@cs.nmt.edu>
- *  Adapted for Power Macintosh by Paul Mackerras.
- *  Low-level exception handlers and MMU support
- *  rewritten by Paul Mackerras.
- *    Copyright (C) 1996 Paul Mackerras.
- *
- *  This file contains low-level assembler routines for managing
- *  the PowerPC MMU hash table.  (PPC 8xx processors don't use a
- *  hash table, so this file is not used on them.)
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
- */
-
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/cputable.h>
-#include <asm/ppc_asm.h>
-#include <asm/thread_info.h>
-#include <asm/asm-offsets.h>
-
-#ifdef CONFIG_SMP
-	.section .bss
-	.align	2
-	.globl mmu_hash_lock
-mmu_hash_lock:
-	.space	4
-#endif /* CONFIG_SMP */
-
-/*
- * Sync CPUs with hash_page taking & releasing the hash
- * table lock
- */
-#ifdef CONFIG_SMP
-	.text
-_GLOBAL(hash_page_sync)
-	lis	r8,mmu_hash_lock@h
-	ori	r8,r8,mmu_hash_lock@l
-	lis	r0,0x0fff
-	b	10f
-11:	lwz	r6,0(r8)
-	cmpwi	0,r6,0
-	bne	11b
-10:	lwarx	r6,0,r8
-	cmpwi	0,r6,0
-	bne-	11b
-	stwcx.	r0,0,r8
-	bne-	10b
-	isync
-	eieio
-	li	r0,0
-	stw	r0,0(r8)
-	blr	
-#endif
-
-/*
- * Load a PTE into the hash table, if possible.
- * The address is in r4, and r3 contains an access flag:
- * _PAGE_RW (0x400) if a write.
- * r9 contains the SRR1 value, from which we use the MSR_PR bit.
- * SPRG3 contains the physical address of the current task's thread.
- *
- * Returns to the caller if the access is illegal or there is no
- * mapping for the address.  Otherwise it places an appropriate PTE
- * in the hash table and returns from the exception.
- * Uses r0, r3 - r8, ctr, lr.
- */
-	.text
-_GLOBAL(hash_page)
-	tophys(r7,0)			/* gets -KERNELBASE into r7 */
-#ifdef CONFIG_SMP
-	addis	r8,r7,mmu_hash_lock@h
-	ori	r8,r8,mmu_hash_lock@l
-	lis	r0,0x0fff
-	b	10f
-11:	lwz	r6,0(r8)
-	cmpwi	0,r6,0
-	bne	11b
-10:	lwarx	r6,0,r8
-	cmpwi	0,r6,0
-	bne-	11b
-	stwcx.	r0,0,r8
-	bne-	10b
-	isync
-#endif
-	/* Get PTE (linux-style) and check access */
-	lis	r0,KERNELBASE@h		/* check if kernel address */
-	cmplw	0,r4,r0
-	mfspr	r8,SPRN_SPRG3		/* current task's THREAD (phys) */
-	ori	r3,r3,_PAGE_USER|_PAGE_PRESENT /* test low addresses as user */
-	lwz	r5,PGDIR(r8)		/* virt page-table root */
-	blt+	112f			/* assume user more likely */
-	lis	r5,swapper_pg_dir@ha	/* if kernel address, use */
-	addi	r5,r5,swapper_pg_dir@l	/* kernel page table */
-	rlwimi	r3,r9,32-12,29,29	/* MSR_PR -> _PAGE_USER */
-112:	add	r5,r5,r7		/* convert to phys addr */
-	rlwimi	r5,r4,12,20,29		/* insert top 10 bits of address */
-	lwz	r8,0(r5)		/* get pmd entry */
-	rlwinm.	r8,r8,0,0,19		/* extract address of pte page */
-#ifdef CONFIG_SMP
-	beq-	hash_page_out		/* return if no mapping */
-#else
-	/* XXX it seems like the 601 will give a machine fault on the
-	   rfi if its alignment is wrong (bottom 4 bits of address are
-	   8 or 0xc) and we have had a not-taken conditional branch
-	   to the address following the rfi. */
-	beqlr-
-#endif
-	rlwimi	r8,r4,22,20,29		/* insert next 10 bits of address */
-	rlwinm	r0,r3,32-3,24,24	/* _PAGE_RW access -> _PAGE_DIRTY */
-	ori	r0,r0,_PAGE_ACCESSED|_PAGE_HASHPTE
-
-	/*
-	 * Update the linux PTE atomically.  We do the lwarx up-front
-	 * because almost always, there won't be a permission violation
-	 * and there won't already be an HPTE, and thus we will have
-	 * to update the PTE to set _PAGE_HASHPTE.  -- paulus.
-	 */
-retry:
-	lwarx	r6,0,r8			/* get linux-style pte */
-	andc.	r5,r3,r6		/* check access & ~permission */
-#ifdef CONFIG_SMP
-	bne-	hash_page_out		/* return if access not permitted */
-#else
-	bnelr-
-#endif
-	or	r5,r0,r6		/* set accessed/dirty bits */
-	stwcx.	r5,0,r8			/* attempt to update PTE */
-	bne-	retry			/* retry if someone got there first */
-
-	mfsrin	r3,r4			/* get segment reg for segment */
-	mfctr	r0
-	stw	r0,_CTR(r11)
-	bl	create_hpte		/* add the hash table entry */
-
-/*
- * htab_reloads counts the number of times we have to fault an
- * HPTE into the hash table.  This should only happen after a
- * fork (because fork does a flush_tlb_mm) or a vmalloc or ioremap.
- * Where a page is faulted into a process's address space,
- * update_mmu_cache gets called to put the HPTE into the hash table
- * and those are counted as preloads rather than reloads.
- */
-	addis	r8,r7,htab_reloads@ha
-	lwz	r3,htab_reloads@l(r8)
-	addi	r3,r3,1
-	stw	r3,htab_reloads@l(r8)
-
-#ifdef CONFIG_SMP
-	eieio
-	addis	r8,r7,mmu_hash_lock@ha
-	li	r0,0
-	stw	r0,mmu_hash_lock@l(r8)
-#endif
-
-	/* Return from the exception */
-	lwz	r5,_CTR(r11)
-	mtctr	r5
-	lwz	r0,GPR0(r11)
-	lwz	r7,GPR7(r11)
-	lwz	r8,GPR8(r11)
-	b	fast_exception_return
-
-#ifdef CONFIG_SMP
-hash_page_out:
-	eieio
-	addis	r8,r7,mmu_hash_lock@ha
-	li	r0,0
-	stw	r0,mmu_hash_lock@l(r8)
-	blr
-#endif /* CONFIG_SMP */
-
-/*
- * Add an entry for a particular page to the hash table.
- *
- * add_hash_page(unsigned context, unsigned long va, unsigned long pmdval)
- *
- * We assume any necessary modifications to the pte (e.g. setting
- * the accessed bit) have already been done and that there is actually
- * a hash table in use (i.e. we're not on a 603).
- */
-_GLOBAL(add_hash_page)
-	mflr	r0
-	stw	r0,4(r1)
-
-	/* Convert context and va to VSID */
-	mulli	r3,r3,897*16		/* multiply context by context skew */
-	rlwinm	r0,r4,4,28,31		/* get ESID (top 4 bits of va) */
-	mulli	r0,r0,0x111		/* multiply by ESID skew */
-	add	r3,r3,r0		/* note create_hpte trims to 24 bits */
-
-#ifdef CONFIG_SMP
-	rlwinm	r8,r1,0,0,18		/* use cpu number to make tag */
-	lwz	r8,TI_CPU(r8)		/* to go in mmu_hash_lock */
-	oris	r8,r8,12
-#endif /* CONFIG_SMP */
-
-	/*
-	 * We disable interrupts here, even on UP, because we don't
-	 * want to race with hash_page, and because we want the
-	 * _PAGE_HASHPTE bit to be a reliable indication of whether
-	 * the HPTE exists (or at least whether one did once).
-	 * We also turn off the MMU for data accesses so that we
-	 * we can't take a hash table miss (assuming the code is
-	 * covered by a BAT).  -- paulus
-	 */
-	mfmsr	r10
-	SYNC
-	rlwinm	r0,r10,0,17,15		/* clear bit 16 (MSR_EE) */
-	rlwinm	r0,r0,0,28,26		/* clear MSR_DR */
-	mtmsr	r0
-	SYNC_601
-	isync
-
-	tophys(r7,0)
-
-#ifdef CONFIG_SMP
-	addis	r9,r7,mmu_hash_lock@ha
-	addi	r9,r9,mmu_hash_lock@l
-10:	lwarx	r0,0,r9			/* take the mmu_hash_lock */
-	cmpi	0,r0,0
-	bne-	11f
-	stwcx.	r8,0,r9
-	beq+	12f
-11:	lwz	r0,0(r9)
-	cmpi	0,r0,0
-	beq	10b
-	b	11b
-12:	isync
-#endif
-
-	/*
-	 * Fetch the linux pte and test and set _PAGE_HASHPTE atomically.
-	 * If _PAGE_HASHPTE was already set, we don't replace the existing
-	 * HPTE, so we just unlock and return.
-	 */
-	mr	r8,r5
-	rlwimi	r8,r4,22,20,29
-1:	lwarx	r6,0,r8
-	andi.	r0,r6,_PAGE_HASHPTE
-	bne	9f			/* if HASHPTE already set, done */
-	ori	r5,r6,_PAGE_HASHPTE
-	stwcx.	r5,0,r8
-	bne-	1b
-
-	bl	create_hpte
-
-	addis	r8,r7,htab_preloads@ha
-	lwz	r3,htab_preloads@l(r8)
-	addi	r3,r3,1
-	stw	r3,htab_preloads@l(r8)
-
-9:
-#ifdef CONFIG_SMP
-	eieio
-	li	r0,0
-	stw	r0,0(r9)		/* clear mmu_hash_lock */
-#endif
-
-	/* reenable interrupts and DR */
-	mtmsr	r10
-	SYNC_601
-	isync
-
-	lwz	r0,4(r1)
-	mtlr	r0
-	blr
-
-/*
- * This routine adds a hardware PTE to the hash table.
- * It is designed to be called with the MMU either on or off.
- * r3 contains the VSID, r4 contains the virtual address,
- * r5 contains the linux PTE, r6 contains the old value of the
- * linux PTE (before setting _PAGE_HASHPTE) and r7 contains the
- * offset to be added to addresses (0 if the MMU is on,
- * -KERNELBASE if it is off).
- * On SMP, the caller should have the mmu_hash_lock held.
- * We assume that the caller has (or will) set the _PAGE_HASHPTE
- * bit in the linux PTE in memory.  The value passed in r6 should
- * be the old linux PTE value; if it doesn't have _PAGE_HASHPTE set
- * this routine will skip the search for an existing HPTE.
- * This procedure modifies r0, r3 - r6, r8, cr0.
- *  -- paulus.
- *
- * For speed, 4 of the instructions get patched once the size and
- * physical address of the hash table are known.  These definitions
- * of Hash_base and Hash_bits below are just an example.
- */
-Hash_base = 0xc0180000
-Hash_bits = 12				/* e.g. 256kB hash table */
-Hash_msk = (((1 << Hash_bits) - 1) * 64)
-
-/* defines for the PTE format for 32-bit PPCs */
-#define PTE_SIZE	8
-#define PTEG_SIZE	64
-#define LG_PTEG_SIZE	6
-#define LDPTEu		lwzu
-#define STPTE		stw
-#define CMPPTE		cmpw
-#define PTE_H		0x40
-#define PTE_V		0x80000000
-#define TST_V(r)	rlwinm. r,r,0,0,0
-#define SET_V(r)	oris r,r,PTE_V@h
-#define CLR_V(r,t)	rlwinm r,r,0,1,31
-
-#define HASH_LEFT	31-(LG_PTEG_SIZE+Hash_bits-1)
-#define HASH_RIGHT	31-LG_PTEG_SIZE
-
-_GLOBAL(create_hpte)
-	/* Convert linux-style PTE (r5) to low word of PPC-style PTE (r8) */
-	rlwinm	r8,r5,32-10,31,31	/* _PAGE_RW