xref: /linux/arch/x86/include/asm/page_32.h (revision e58e871becec2d3b04ed91c0c16fe8deac9c9dfa)
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 */
49