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_reloc_hide(x)    RELOC_HIDE((x), 0)
  19
  20#ifdef CONFIG_FLATMEM
  21#define pfn_valid(pfn)          ((pfn) < max_mapnr)
  22#endif /* CONFIG_FLATMEM */
  23
  24#ifdef CONFIG_X86_USE_3DNOW
  25#include <asm/mmx.h>
  26
  27static inline void clear_page(void *page)
  28{
  29        mmx_clear_page(page);
  30}
  31
  32static inline void copy_page(void *to, void *from)
  33{
  34        mmx_copy_page(to, from);
  35}
  36#else  /* !CONFIG_X86_USE_3DNOW */
  37#include <linux/string.h>
  38
  39static inline void clear_page(void *page)
  40{
  41        memset(page, 0, PAGE_SIZE);
  42}
  43
  44static inline void copy_page(void *to, void *from)
  45{
  46        memcpy(to, from, PAGE_SIZE);
  47}
  48#endif  /* CONFIG_X86_3DNOW */
  49#endif  /* !__ASSEMBLY__ */
  50
  51#endif /* _ASM_X86_PAGE_32_H */
  52