diff options
Diffstat (limited to 'arch/arm/mm/mm-armo.c')
| -rw-r--r-- | arch/arm/mm/mm-armo.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/arm/mm/mm-armo.c b/arch/arm/mm/mm-armo.c index 5ee95ea45..680a52948 100644 --- a/arch/arm/mm/mm-armo.c +++ b/arch/arm/mm/mm-armo.c @@ -11,6 +11,7 @@ #include <linux/bootmem.h> #include <asm/pgtable.h> +#include <asm/pgalloc.h> #include <asm/page.h> #include <asm/arch/memory.h> @@ -134,6 +135,20 @@ pte_t *get_pte_slow(pmd_t *pmd, unsigned long offset) } /* + * Calculate the size of the DMA, normal and highmem zones. + * On 26-bit ARMs, we don't have any real DMA or highmem, + * so we allocate the whole memory as being DMA-capable. + */ +void __init zonesize_init(unsigned int *zone_size) +{ + int i; + + zone_size[0] = max_low_pfn; + zone_size[1] = 0; + zone_size[2] = 0; +} + +/* * This contains the code to setup the memory map on an ARM2/ARM250/ARM3 * machine. This is both processor & architecture specific, and requires * some more work to get it to fit into our separate processor and @@ -147,7 +162,6 @@ void __init pagetable_init(void) page_nr = max_low_pfn; pte = alloc_bootmem_low_pages(PTRS_PER_PTE * sizeof(pte_t)); - memzero(pte, PTRS_PER_PTE * sizeof(pte_t)); pte[0] = mk_pte_phys(PAGE_OFFSET + 491520, PAGE_READONLY); set_pmd(pmd_offset(swapper_pg_dir, 0), mk_kernel_pmd(pte)); |