diff options
Diffstat (limited to 'arch/um/kernel/mem.c')
| -rw-r--r-- | arch/um/kernel/mem.c | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 8636e905426f..b2a2dff50b4e 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -38,19 +38,6 @@ int kmalloc_ok = 0; /* Used during early boot */ static unsigned long brk_end; -#ifdef CONFIG_HIGHMEM -static void setup_highmem(unsigned long highmem_start, - unsigned long highmem_len) -{ - unsigned long highmem_pfn; - int i; - - highmem_pfn = __pa(highmem_start) >> PAGE_SHIFT; - for (i = 0; i < highmem_len >> PAGE_SHIFT; i++) - free_highmem_page(&mem_map[highmem_pfn + i]); -} -#endif - void __init mem_init(void) { /* clear the zero-page */ @@ -67,9 +54,6 @@ void __init mem_init(void) /* this will put all low memory onto the freelists */ free_all_bootmem(); max_low_pfn = totalram_pages; -#ifdef CONFIG_HIGHMEM - setup_highmem(end_iomem, highmem); -#endif max_pfn = totalram_pages; mem_init_print_info(NULL); kmalloc_ok = 1; @@ -127,49 +111,6 @@ static void __init fixrange_init(unsigned long start, unsigned long end, } } -#ifdef CONFIG_HIGHMEM -pte_t *kmap_pte; -pgprot_t kmap_prot; - -#define kmap_get_fixmap_pte(vaddr) \ - pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)),\ - (vaddr)), (vaddr)) - -static void __init kmap_init(void) -{ - unsigned long kmap_vstart; - - /* cache the first kmap pte */ - kmap_vstart = __fix_to_virt(FIX_KMAP_BEGIN); - kmap_pte = kmap_get_fixmap_pte(kmap_vstart); - - kmap_prot = PAGE_KERNEL; -} - -static void __init init_highmem(void) -{ - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *pte; - unsigned long vaddr; - - /* - * Permanent kmaps: - */ - vaddr = PKMAP_BASE; - fixrange_init(vaddr, vaddr + PAGE_SIZE*LAST_PKMAP, swapper_pg_dir); - - pgd = swapper_pg_dir + pgd_index(vaddr); - pud = pud_offset(pgd, vaddr); - pmd = pmd_offset(pud, vaddr); - pte = pte_offset_kernel(pmd, vaddr); - pkmap_page_table = pte; - - kmap_init(); -} -#endif /* CONFIG_HIGHMEM */ - static void __init fixaddr_user_init( void) { #ifdef CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA @@ -211,9 +152,6 @@ void __init paging_init(void) zones_size[ZONE_NORMAL] = (end_iomem >> PAGE_SHIFT) - (uml_physmem >> PAGE_SHIFT); -#ifdef CONFIG_HIGHMEM - zones_size[ZONE_HIGHMEM] = highmem >> PAGE_SHIFT; -#endif free_area_init(zones_size); /* @@ -224,10 +162,6 @@ void __init paging_init(void) fixrange_init(vaddr, FIXADDR_TOP, swapper_pg_dir); fixaddr_user_init(); - -#ifdef CONFIG_HIGHMEM - init_highmem(); -#endif } /* |