diff options
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/mman.h | 5 | ||||
| -rw-r--r-- | arch/mips/include/asm/pgtable.h | 10 | ||||
| -rw-r--r-- | arch/mips/mm/init.c | 9 |
3 files changed, 18 insertions, 6 deletions
diff --git a/arch/mips/include/asm/mman.h b/arch/mips/include/asm/mman.h index e4d6f1f..a2250f3 100644 --- a/arch/mips/include/asm/mman.h +++ b/arch/mips/include/asm/mman.h @@ -46,6 +46,8 @@ #define MAP_LOCKED 0x8000 /* pages are locked */ #define MAP_POPULATE 0x10000 /* populate (prefault) pagetables */ #define MAP_NONBLOCK 0x20000 /* do not block on IO */ +#define MAP_STACK 0x40000 /* give out an address that is best suited for process/thread stacks */ +#define MAP_HUGETLB 0x80000 /* create a huge page mapping */ /* * Flags for msync @@ -71,6 +73,9 @@ #define MADV_DONTFORK 10 /* don't inherit across fork */ #define MADV_DOFORK 11 /* do inherit across fork */ +#define MADV_MERGEABLE 12 /* KSM may merge identical pages */ +#define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */ + /* compatibility flags */ #define MAP_FILE 0 diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h index 1a9f9b2..d6eb613 100644 --- a/arch/mips/include/asm/pgtable.h +++ b/arch/mips/include/asm/pgtable.h @@ -76,6 +76,16 @@ extern unsigned long zero_page_mask; #define ZERO_PAGE(vaddr) \ (virt_to_page((void *)(empty_zero_page + (((unsigned long)(vaddr)) & zero_page_mask)))) +#define is_zero_pfn is_zero_pfn +static inline int is_zero_pfn(unsigned long pfn) +{ + extern unsigned long zero_pfn; + unsigned long offset_from_zero_pfn = pfn - zero_pfn; + return offset_from_zero_pfn <= (zero_page_mask >> PAGE_SHIFT); +} + +#define my_zero_pfn(addr) page_to_pfn(ZERO_PAGE(addr)) + extern void paging_init(void); /* diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c index 38c79c5..15aa190 100644 --- a/arch/mips/mm/init.c +++ b/arch/mips/mm/init.c @@ -352,7 +352,6 @@ void __init paging_init(void) free_area_init_nodes(max_zone_pfns); } -static struct kcore_list kcore_mem, kcore_vmalloc; #ifdef CONFIG_64BIT static struct kcore_list kcore_kseg0; #endif @@ -409,15 +408,13 @@ void __init mem_init(void) if ((unsigned long) &_text > (unsigned long) CKSEG0) /* The -4 is a hack so that user tools don't have to handle the overflow. */ - kclist_add(&kcore_kseg0, (void *) CKSEG0, 0x80000000 - 4); + kclist_add(&kcore_kseg0, (void *) CKSEG0, + 0x80000000 - 4, KCORE_TEXT); #endif - 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 (%ldk kernel code, " "%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), + nr_free_pages() << (PAGE_SHIFT-10), ram << (PAGE_SHIFT-10), codesize >> 10, reservedpages << (PAGE_SHIFT-10), |