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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - include/asm-frv/page.h
6 #include <linux/config.h>
7 #include <asm/virtconvert.h>
8 #include <asm/mem-layout.h>
9 #include <asm/sections.h>
10 #include <asm/setup.h>
14 #define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
15 #define free_user_page(page, addr) free_page(addr)
17 #define clear_page(pgaddr) memset((pgaddr), 0, PAGE_SIZE)
18 #define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
20 #define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE)
21 #define copy_user_page(vto, vfrom, vaddr, topg) memcpy((vto), (vfrom), PAGE_SIZE)
24 * These are used to make use of C type-checking..
26 typedef struct { unsigned long pte
; } pte_t
;
27 typedef struct { unsigned long ste
[64];} pmd_t
;
28 typedef struct { pmd_t pue
[1]; } pud_t
;
29 typedef struct { pud_t pge
[1]; } pgd_t
;
30 typedef struct { unsigned long pgprot
; } pgprot_t
;
32 #define pte_val(x) ((x).pte)
33 #define pmd_val(x) ((x).ste[0])
34 #define pud_val(x) ((x).pue[0])
35 #define pgd_val(x) ((x).pge[0])
36 #define pgprot_val(x) ((x).pgprot)
38 #define __pte(x) ((pte_t) { (x) } )
39 #define __pmd(x) ((pmd_t) { (x) } )
40 #define __pud(x) ((pud_t) { (x) } )
41 #define __pgd(x) ((pgd_t) { (x) } )
42 #define __pgprot(x) ((pgprot_t) { (x) } )
43 #define PTE_MASK PAGE_MASK
45 /* to align the pointer to the (next) page boundary */
46 #define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
48 #define devmem_is_allowed(pfn) 1
50 #define __pa(vaddr) virt_to_phys((void *) (unsigned long) (vaddr))
51 #define __va(paddr) phys_to_virt((unsigned long) (paddr))
53 #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
55 extern unsigned long max_low_pfn
;
56 extern unsigned long min_low_pfn
;
57 extern unsigned long max_pfn
;
60 #define pfn_to_page(pfn) (mem_map + (pfn))
61 #define page_to_pfn(page) ((unsigned long) ((page) - mem_map))
62 #define pfn_valid(pfn) ((pfn) < max_mapnr)
65 #define pfn_to_page(pfn) (&mem_map[(pfn) - (PAGE_OFFSET >> PAGE_SHIFT)])
66 #define page_to_pfn(page) ((PAGE_OFFSET >> PAGE_SHIFT) + (unsigned long) ((page) - mem_map))
67 #define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_low_pfn)
71 #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
72 #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
76 #define VM_DATA_DEFAULT_FLAGS \
77 (VM_READ | VM_WRITE | \
78 ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
79 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
82 #endif /* __ASSEMBLY__ */
84 #endif /* __KERNEL__ */
86 #ifdef CONFIG_CONTIGUOUS_PAGE_ALLOC
87 #define WANT_PAGE_VIRTUAL 1
90 #include <asm-generic/page.h>
92 #endif /* _ASM_PAGE_H */