diff options
Diffstat (limited to 'include/asm-x86/page.h')
| -rw-r--r-- | include/asm-x86/page.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h index e0fa4a0..2ebb697 100644 --- a/include/asm-x86/page.h +++ b/include/asm-x86/page.h @@ -70,6 +70,11 @@ #define KERNEL_TEXT_SIZE (40*1024*1024) #define KERNEL_TEXT_START _AC(0xffffffff80000000, UL) +#ifndef __ASSEMBLY__ +void clear_page(void *page); +void copy_page(void *to, void *from); +#endif /* !__ASSEMBLY__ */ + #endif /* CONFIG_X86_64 */ #ifdef CONFIG_X86_32 @@ -98,6 +103,34 @@ #define HAVE_ARCH_HUGETLB_UNMAPPED_AREA #endif +#ifndef __ASSEMBLY__ +#ifdef CONFIG_X86_USE_3DNOW +#include <asm/mmx.h> + +static inline void clear_page(void *page) +{ + mmx_clear_page(page); +} + +static inline void copy_page(void *to, void *from) +{ + mmx_copy_page(to, from); +} +#else /* !CONFIG_X86_USE_3DNOW */ +#include <linux/string.h> + +static inline void clear_page(void *page) +{ + memset(page, 0, PAGE_SIZE); +} + +static inline void copy_page(void *to, void *from) +{ + memcpy(to, from, PAGE_SIZE); +} +#endif /* CONFIG_X86_3DNOW */ +#endif /* !__ASSEMBLY__ */ + #endif /* CONFIG_X86_32 */ #define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET) @@ -107,6 +140,28 @@ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) +#ifndef __ASSEMBLY__ +struct page; + +static void inline clear_user_page(void *page, unsigned long vaddr, + struct page *pg) +{ + clear_page(page); +} + +static void inline copy_user_page(void *to, void *from, unsigned long vaddr, + struct page *topage) +{ + copy_page(to, from); +} + +#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ + alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) +#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE + +#endif /* __ASSEMBLY__ */ + + #ifdef CONFIG_X86_32 # include "page_32.h" #else |
