diff options
Diffstat (limited to 'arch/x86/mm/init.c')
| -rw-r--r-- | arch/x86/mm/init.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 3cadf1013ce..8168bf8fcda 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -98,6 +98,16 @@ int direct_gbpages #endif ; +static void __init init_gbpages(void) +{ +#ifdef CONFIG_X86_64 + if (direct_gbpages && cpu_has_gbpages) + printk(KERN_INFO "Using GB pages for direct mapping\n"); + else + direct_gbpages = 0; +#endif +} + struct map_range { unsigned long start; unsigned long end; @@ -108,6 +118,8 @@ static int page_size_mask; static void __init probe_page_size_mask(void) { + init_gbpages(); + #if !defined(CONFIG_DEBUG_PAGEALLOC) && !defined(CONFIG_KMEMCHECK) /* * For CONFIG_DEBUG_PAGEALLOC, identity mapping will use small pages. |