7 extern unsigned long end_pfn;
8 extern unsigned long end_pfn_map;
11 * These are used to make use of C type-checking..
13 typedef struct { unsigned long pmd; } pmd_t;
14 typedef struct { unsigned long pud; } pud_t;
15 typedef struct { unsigned long pgd; } pgd_t;
16 #define PTE_MASK PHYSICAL_PAGE_MASK
18 typedef struct { unsigned long pgprot; } pgprot_t;
20 extern unsigned long phys_base;
22 #define pte_val(x) ((x).pte)
23 #define pmd_val(x) ((x).pmd)
24 #define pud_val(x) ((x).pud)
25 #define pgd_val(x) ((x).pgd)
26 #define pgprot_val(x) ((x).pgprot)
28 #define __pte(x) ((pte_t) { (x) } )
29 #define __pmd(x) ((pmd_t) { (x) } )
30 #define __pud(x) ((pud_t) { (x) } )
31 #define __pgd(x) ((pgd_t) { (x) } )
32 #define __pgprot(x) ((pgprot_t) { (x) } )
34 #endif /* !__ASSEMBLY__ */
40 extern unsigned long __phys_addr(unsigned long);
42 #endif /* __ASSEMBLY__ */
44 #define __pa(x) __phys_addr((unsigned long)(x))
45 #define __pa_symbol(x) __phys_addr((unsigned long)(x))
47 #define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
48 #define __boot_va(x) __va(x)
49 #define __boot_pa(x) __pa(x)
51 #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
52 #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
53 #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
55 #define __HAVE_ARCH_GATE_AREA 1
56 #define vmemmap ((struct page *)VMEMMAP_START)
58 #include <asm-generic/memory_model.h>
59 #include <asm-generic/page.h>
61 #endif /* __KERNEL__ */
64 #define pfn_valid(pfn) ((pfn) < end_pfn)
68 #endif /* _X86_64_PAGE_H */