arch/x86/include/asm/page_32.h

   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
  14 extern 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
  27 static inline void clear_page(void *page)
  28 {
  29         mmx_clear_page(page);
  30 }
  31
  32 static 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
  39 static inline void clear_page(void *page)
  40 {
  41         memset(page, 0, PAGE_SIZE);
  42 }
  43
  44 static 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 */