diff options
Diffstat (limited to 'arch/sh/mm/init.c')
-rw-r--r-- | arch/sh/mm/init.c | 58 |
1 files changed, 29 insertions, 29 deletions
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index fe532aeaa16d..8173e38afd38 100644 --- a/arch/sh/mm/init.c +++ b/arch/sh/mm/init.c @@ -106,27 +106,31 @@ void __init page_table_range_init(unsigned long start, unsigned long end, pgd_t *pgd; pud_t *pud; pmd_t *pmd; - int pgd_idx; + pte_t *pte; + int i, j, k; unsigned long vaddr; - vaddr = start & PMD_MASK; - end = (end + PMD_SIZE - 1) & PMD_MASK; - pgd_idx = pgd_index(vaddr); - pgd = pgd_base + pgd_idx; - - for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) { - BUG_ON(pgd_none(*pgd)); - pud = pud_offset(pgd, 0); - BUG_ON(pud_none(*pud)); - pmd = pmd_offset(pud, 0); - - if (!pmd_present(*pmd)) { - pte_t *pte_table; - pte_table = (pte_t *)alloc_bootmem_low_pages(PAGE_SIZE); - pmd_populate_kernel(&init_mm, pmd, pte_table); + vaddr = start; + i = __pgd_offset(vaddr); + j = __pud_offset(vaddr); + k = __pmd_offset(vaddr); + pgd = pgd_base + i; + + for ( ; (i < PTRS_PER_PGD) && (vaddr != end); pgd++, i++) { + pud = (pud_t *)pgd; + for ( ; (j < PTRS_PER_PUD) && (vaddr != end); pud++, j++) { + pmd = (pmd_t *)pud; + for (; (k < PTRS_PER_PMD) && (vaddr != end); pmd++, k++) { + if (pmd_none(*pmd)) { + pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE); + pmd_populate_kernel(&init_mm, pmd, pte); + BUG_ON(pte != pte_offset_kernel(pmd, 0)); + } + vaddr += PMD_SIZE; + } + k = 0; } - - vaddr += PMD_SIZE; + j = 0; } } #endif /* CONFIG_MMU */ @@ -137,7 +141,7 @@ void __init page_table_range_init(unsigned long start, unsigned long end, void __init paging_init(void) { unsigned long max_zone_pfns[MAX_NR_ZONES]; - unsigned long vaddr; + unsigned long vaddr, end; int nid; /* We don't need to map the kernel through the TLB, as @@ -155,7 +159,8 @@ void __init paging_init(void) * pte's will be filled in by __set_fixmap(). */ vaddr = __fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK; - page_table_range_init(vaddr, 0, swapper_pg_dir); + end = (FIXADDR_TOP + PMD_SIZE - 1) & PMD_MASK; + page_table_range_init(vaddr, end, swapper_pg_dir); kmap_coherent_init(); @@ -181,8 +186,6 @@ void __init paging_init(void) set_fixmap_nocache(FIX_UNCACHED, __pa(&__uncached_start)); } -static struct kcore_list kcore_mem, kcore_vmalloc; - void __init mem_init(void) { int codesize, datasize, initsize; @@ -210,6 +213,9 @@ void __init mem_init(void) high_memory = node_high_memory; } + /* Set this up early, so we can take care of the zero page */ + cpu_cache_init(); + /* clear the zero-page */ memset(empty_zero_page, 0, PAGE_SIZE); __flush_wback_region(empty_zero_page, PAGE_SIZE); @@ -218,20 +224,14 @@ void __init mem_init(void) datasize = (unsigned long) &_edata - (unsigned long) &_etext; initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; - kclist_add(&kcore_mem, __va(0), max_low_pfn << PAGE_SHIFT); - kclist_add(&kcore_vmalloc, (void *)VMALLOC_START, - VMALLOC_END - VMALLOC_START); - printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, " "%dk data, %dk init)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), num_physpages << (PAGE_SHIFT-10), codesize >> 10, datasize >> 10, initsize >> 10); - p3_cache_init(); - /* Initialize the vDSO */ vsyscall_init(); } |