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