LXR linux/arch/x86/include/asm/page

   1#ifndef _ASM_X86_PAGE_32_H
   2#define _ASM_X86_PAGE_32_H
   3
   4#include <asm/page_32_types.h>
   5
   6#ifndef __ASSEMBLY__
   7
   8#ifdef CONFIG_HUGETLB_PAGE
   9#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
  10#endif
  11
  12#define __phys_addr_nodebug(x)  ((x) - PAGE_OFFSET)
  13#ifdef CONFIG_DEBUG_VIRTUAL
  14extern unsigned long __phys_addr(unsigned long);
  15#else
  16#define __phys_addr(x)          __phys_addr_nodebug(x)
  17#endif
  18#define __phys_addr_symbol(x)   __phys_addr(x)
  19#define __phys_reloc_hide(x)    RELOC_HIDE((x), 0)
  20
  21#ifdef CONFIG_FLATMEM
  22#define pfn_valid(pfn)          ((pfn) < max_mapnr)
  23#endif /* CONFIG_FLATMEM */
  24
  25#ifdef CONFIG_X86_USE_3DNOW
  26#include <asm/mmx.h>
  27
  28static inline void clear_page(void *page)
  29{
  30        mmx_clear_page(page);
  31}
  32
  33static inline void copy_page(void *to, void *from)
  34{
  35        mmx_copy_page(to, from);
  36}
  37#else  /* !CONFIG_X86_USE_3DNOW */
  38#include <linux/string.h>
  39
  40static inline void clear_page(void *page)
  41{
  42        memset(page, 0, PAGE_SIZE);
  43}
  44
  45static inline void copy_page(void *to, void *from)
  46{
  47        memcpy(to, from, PAGE_SIZE);
  48}
  49#endif  /* CONFIG_X86_3DNOW */
  50#endif  /* !__ASSEMBLY__ */
  51
  52#endif /* _ASM_X86_PAGE_32_H */
  53