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-rw-r--r--arch/sh64/mm/init.c189
1 files changed, 0 insertions, 189 deletions
diff --git a/arch/sh64/mm/init.c b/arch/sh64/mm/init.c
deleted file mode 100644
index 21cf42de23e2..000000000000
--- a/arch/sh64/mm/init.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/mm/init.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- */
-
-#include <linux/init.h>
-#include <linux/rwsem.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/bootmem.h>
-
-#include <asm/mmu_context.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
-#include <asm/tlb.h>
-
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
-/*
- * Cache of MMU context last used.
- */
-unsigned long mmu_context_cache;
-pgd_t * mmu_pdtp_cache;
-int after_bootmem = 0;
-
-/*
- * BAD_PAGE is the page that is used for page faults when linux
- * is out-of-memory. Older versions of linux just did a
- * do_exit(), but using this instead means there is less risk
- * for a process dying in kernel mode, possibly leaving an inode
- * unused etc..
- *
- * BAD_PAGETABLE is the accompanying page-table: it is initialized
- * to point to BAD_PAGE entries.
- *
- * ZERO_PAGE is a special page that is used for zero-initialized
- * data and COW.
- */
-
-extern unsigned char empty_zero_page[PAGE_SIZE];
-extern unsigned char empty_bad_page[PAGE_SIZE];
-extern pte_t empty_bad_pte_table[PTRS_PER_PTE];
-extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
-
-extern char _text, _etext, _edata, __bss_start, _end;
-extern char __init_begin, __init_end;
-
-/* It'd be good if these lines were in the standard header file. */
-#define START_PFN (NODE_DATA(0)->bdata->node_boot_start >> PAGE_SHIFT)
-#define MAX_LOW_PFN (NODE_DATA(0)->bdata->node_low_pfn)
-
-
-void show_mem(void)
-{
- int i, total = 0, reserved = 0;
- int shared = 0, cached = 0;
-
- printk("Mem-info:\n");
- show_free_areas();
- printk("Free swap: %6ldkB\n",nr_swap_pages<<(PAGE_SHIFT-10));
- i = max_mapnr;
- while (i-- > 0) {
- total++;
- if (PageReserved(mem_map+i))
- reserved++;
- else if (PageSwapCache(mem_map+i))
- cached++;
- else if (page_count(mem_map+i))
- shared += page_count(mem_map+i) - 1;
- }
- printk("%d pages of RAM\n",total);
- printk("%d reserved pages\n",reserved);
- printk("%d pages shared\n",shared);
- printk("%d pages swap cached\n",cached);
- printk("%ld pages in page table cache\n", quicklist_total_size());
-}
-
-/*
- * paging_init() sets up the page tables.
- *
- * head.S already did a lot to set up address translation for the kernel.
- * Here we comes with:
- * . MMU enabled
- * . ASID set (SR)
- * . some 512MB regions being mapped of which the most relevant here is:
- * . CACHED segment (ASID 0 [irrelevant], shared AND NOT user)
- * . possible variable length regions being mapped as:
- * . UNCACHED segment (ASID 0 [irrelevant], shared AND NOT user)
- * . All of the memory regions are placed, independently from the platform
- * on high addresses, above 0x80000000.
- * . swapper_pg_dir is already cleared out by the .space directive
- * in any case swapper does not require a real page directory since
- * it's all kernel contained.
- *
- * Those pesky NULL-reference errors in the kernel are then
- * dealt with by not mapping address 0x00000000 at all.
- *
- */
-void __init paging_init(void)
-{
- unsigned long zones_size[MAX_NR_ZONES] = {0, };
-
- pgd_init((unsigned long)swapper_pg_dir);
- pgd_init((unsigned long)swapper_pg_dir +
- sizeof(pgd_t) * USER_PTRS_PER_PGD);
-
- mmu_context_cache = MMU_CONTEXT_FIRST_VERSION;
-
- zones_size[ZONE_NORMAL] = MAX_LOW_PFN - START_PFN;
- NODE_DATA(0)->node_mem_map = NULL;
- free_area_init_node(0, NODE_DATA(0), zones_size, __MEMORY_START >> PAGE_SHIFT, 0);
-}
-
-void __init mem_init(void)
-{
- int codesize, reservedpages, datasize, initsize;
- int tmp;
-
- max_mapnr = num_physpages = MAX_LOW_PFN - START_PFN;
- high_memory = (void *)__va(MAX_LOW_PFN * PAGE_SIZE);
-
- /*
- * Clear the zero-page.
- * This is not required but we might want to re-use
- * this very page to pass boot parameters, one day.
- */
- memset(empty_zero_page, 0, PAGE_SIZE);
-
- /* this will put all low memory onto the freelists */
- totalram_pages += free_all_bootmem_node(NODE_DATA(0));
- reservedpages = 0;
- for (tmp = 0; tmp < num_physpages; tmp++)
- /*
- * Only count reserved RAM pages
- */
- if (PageReserved(mem_map+tmp))
- reservedpages++;
-
- after_bootmem = 1;
-
- codesize = (unsigned long) &_etext - (unsigned long) &_text;
- datasize = (unsigned long) &_edata - (unsigned long) &_etext;
- initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
- printk("Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n",
- (unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
- max_mapnr << (PAGE_SHIFT-10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- initsize >> 10);
-}
-
-void free_initmem(void)
-{
- unsigned long addr;
-
- addr = (unsigned long)(&__init_begin);
- for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(addr));
- init_page_count(virt_to_page(addr));
- free_page(addr);
- totalram_pages++;
- }
- printk ("Freeing unused kernel memory: %ldk freed\n", (&__init_end - &__init_begin) >> 10);
-}
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- unsigned long p;
- for (p = start; p < end; p += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(p));
- init_page_count(virt_to_page(p));
- free_page(p);
- totalram_pages++;
- }
- printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
-}
-#endif
-