summaryrefslogtreecommitdiffstats
path: root/arch/um/kernel/mem.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/um/kernel/mem.c')
-rw-r--r--arch/um/kernel/mem.c66
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
}
/*