diff options
Diffstat (limited to 'arch/alpha/mm/init.c')
| -rw-r--r-- | arch/alpha/mm/init.c | 123 |
1 files changed, 21 insertions, 102 deletions
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c index 40c15e7301d..a1bea91df56 100644 --- a/arch/alpha/mm/init.c +++ b/arch/alpha/mm/init.c @@ -20,8 +20,8 @@ #include <linux/init.h> #include <linux/bootmem.h> /* max_low_pfn */ #include <linux/vmalloc.h> +#include <linux/gfp.h> -#include <asm/system.h> #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> @@ -30,8 +30,8 @@ #include <asm/mmu_context.h> #include <asm/console.h> #include <asm/tlb.h> - -DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); +#include <asm/setup.h> +#include <asm/sections.h> extern void die_if_kernel(char *,struct pt_regs *,long); @@ -59,13 +59,6 @@ pgd_alloc(struct mm_struct *mm) return ret; } -pte_t * -pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) -{ - pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); - return pte; -} - /* * BAD_PAGE is the page that is used for page faults when linux @@ -94,36 +87,6 @@ __bad_page(void) return pte_mkdirty(mk_pte(virt_to_page(EMPTY_PGE), PAGE_SHARED)); } -#ifndef CONFIG_DISCONTIGMEM -void -show_mem(void) -{ - long i,free = 0,total = 0,reserved = 0; - long shared = 0, cached = 0; - - printk("\nMem-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)) - free++; - else - shared += page_count(mem_map + i) - 1; - } - printk("%ld pages of RAM\n",total); - printk("%ld free pages\n",free); - printk("%ld reserved pages\n",reserved); - printk("%ld pages shared\n",shared); - printk("%ld pages swap cached\n",cached); -} -#endif - static inline unsigned long load_PCB(struct pcb_struct *pcb) { @@ -226,9 +189,21 @@ callback_init(void * kernel_end) if (alpha_using_srm) { static struct vm_struct console_remap_vm; - unsigned long vaddr = VMALLOC_START; + unsigned long nr_pages = 0; + unsigned long vaddr; unsigned long i, j; + /* calculate needed size */ + for (i = 0; i < crb->map_entries; ++i) + nr_pages += crb->map[i].count; + + /* register the vm area */ + console_remap_vm.flags = VM_ALLOC; + console_remap_vm.size = nr_pages << PAGE_SHIFT; + vm_area_register_early(&console_remap_vm, PAGE_SIZE); + + vaddr = (unsigned long)console_remap_vm.addr; + /* Set up the third level PTEs and update the virtual addresses of the CRB entries. */ for (i = 0; i < crb->map_entries; ++i) { @@ -250,12 +225,6 @@ callback_init(void * kernel_end) vaddr += PAGE_SIZE; } } - - /* Let vmalloc know that we've allocated some space. */ - console_remap_vm.flags = VM_ALLOC; - console_remap_vm.addr = (void *) VMALLOC_START; - console_remap_vm.size = vaddr - VMALLOC_START; - vmlist = &console_remap_vm; } callback_init_done = 1; @@ -307,75 +276,25 @@ srm_paging_stop (void) } #endif -#ifndef CONFIG_DISCONTIGMEM -static void __init -printk_memory_info(void) -{ - unsigned long codesize, reservedpages, datasize, initsize, tmp; - extern int page_is_ram(unsigned long) __init; - extern char _text, _etext, _data, _edata; - extern char __init_begin, __init_end; - - /* printk all informations */ - reservedpages = 0; - for (tmp = 0; tmp < max_low_pfn; tmp++) - /* - * Only count reserved RAM pages - */ - if (page_is_ram(tmp) && PageReserved(mem_map+tmp)) - reservedpages++; - - codesize = (unsigned long) &_etext - (unsigned long) &_text; - datasize = (unsigned long) &_edata - (unsigned long) &_data; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - - printk("Memory: %luk/%luk available (%luk kernel code, %luk reserved, %luk data, %luk 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 __init mem_init(void) { - max_mapnr = num_physpages = max_low_pfn; - totalram_pages += free_all_bootmem(); + set_max_mapnr(max_low_pfn); high_memory = (void *) __va(max_low_pfn * PAGE_SIZE); - - printk_memory_info(); -} -#endif /* CONFIG_DISCONTIGMEM */ - -void -free_reserved_mem(void *start, void *end) -{ - void *__start = start; - for (; __start < end; __start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(__start)); - init_page_count(virt_to_page(__start)); - free_page((long)__start); - totalram_pages++; - } + free_all_bootmem(); + mem_init_print_info(NULL); } void free_initmem(void) { - extern char __init_begin, __init_end; - - free_reserved_mem(&__init_begin, &__init_end); - printk ("Freeing unused kernel memory: %ldk freed\n", - (&__init_end - &__init_begin) >> 10); + free_initmem_default(-1); } #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_reserved_mem((void *)start, (void *)end); - printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10); + free_reserved_area((void *)start, (void *)end, -1, "initrd"); } #endif |
