diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/m68k/mm/sun3mmu.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/m68k/mm/sun3mmu.c | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/ANDROID_3.4.5/arch/m68k/mm/sun3mmu.c b/ANDROID_3.4.5/arch/m68k/mm/sun3mmu.c deleted file mode 100644 index e0804060..00000000 --- a/ANDROID_3.4.5/arch/m68k/mm/sun3mmu.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * linux/arch/m68k/mm/sun3mmu.c - * - * Implementations of mm routines specific to the sun3 MMU. - * - * Moved here 8/20/1999 Sam Creasey - * - */ - -#include <linux/signal.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/swap.h> -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/types.h> -#include <linux/init.h> -#include <linux/bootmem.h> - -#include <asm/setup.h> -#include <asm/uaccess.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/machdep.h> -#include <asm/io.h> - -extern void mmu_emu_init (unsigned long bootmem_end); - -const char bad_pmd_string[] = "Bad pmd in pte_alloc: %08lx\n"; - -extern unsigned long num_pages; - -void free_initmem(void) -{ -} - -/* For the sun3 we try to follow the i386 paging_init() more closely */ -/* start_mem and end_mem have PAGE_OFFSET added already */ -/* now sets up tables using sun3 PTEs rather than i386 as before. --m */ -void __init paging_init(void) -{ - pgd_t * pg_dir; - pte_t * pg_table; - int i; - unsigned long address; - unsigned long next_pgtable; - unsigned long bootmem_end; - unsigned long zones_size[MAX_NR_ZONES] = { 0, }; - unsigned long size; - -#ifdef TEST_VERIFY_AREA - wp_works_ok = 0; -#endif - empty_zero_page = alloc_bootmem_pages(PAGE_SIZE); - - address = PAGE_OFFSET; - pg_dir = swapper_pg_dir; - memset (swapper_pg_dir, 0, sizeof (swapper_pg_dir)); - memset (kernel_pg_dir, 0, sizeof (kernel_pg_dir)); - - size = num_pages * sizeof(pte_t); - size = (size + PAGE_SIZE) & ~(PAGE_SIZE-1); - - next_pgtable = (unsigned long)alloc_bootmem_pages(size); - bootmem_end = (next_pgtable + size + PAGE_SIZE) & PAGE_MASK; - - /* Map whole memory from PAGE_OFFSET (0x0E000000) */ - pg_dir += PAGE_OFFSET >> PGDIR_SHIFT; - - while (address < (unsigned long)high_memory) { - pg_table = (pte_t *) __pa (next_pgtable); - next_pgtable += PTRS_PER_PTE * sizeof (pte_t); - pgd_val(*pg_dir) = (unsigned long) pg_table; - pg_dir++; - - /* now change pg_table to kernel virtual addresses */ - pg_table = (pte_t *) __va ((unsigned long) pg_table); - for (i=0; i<PTRS_PER_PTE; ++i, ++pg_table) { - pte_t pte = pfn_pte(virt_to_pfn(address), PAGE_INIT); - if (address >= (unsigned long)high_memory) - pte_val (pte) = 0; - set_pte (pg_table, pte); - address += PAGE_SIZE; - } - } - - mmu_emu_init(bootmem_end); - - current->mm = NULL; - - /* memory sizing is a hack stolen from motorola.c.. hope it works for us */ - zones_size[ZONE_DMA] = ((unsigned long)high_memory - PAGE_OFFSET) >> PAGE_SHIFT; - - /* I really wish I knew why the following change made things better... -- Sam */ -/* free_area_init(zones_size); */ - free_area_init_node(0, zones_size, - (__pa(PAGE_OFFSET) >> PAGE_SHIFT) + 1, NULL); - - -} - - |