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

[sfrench/cifs-2.6.git] / arch / ppc / mm / 4xx_mmu.c

diff --git a/arch/ppc/mm/4xx_mmu.c b/arch/ppc/mm/4xx_mmu.c
deleted file mode 100644 (file)
index ea785db..0000000
--- 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;
-}