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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - include/asm-frv/page.h
4 #include <asm/virtconvert.h>
5 #include <asm/mem-layout.h>
6 #include <asm/sections.h>
11 #define get_user_page(vaddr) __get_free_page(GFP_KERNEL)
12 #define free_user_page(page, addr) free_page(addr)
14 #define clear_page(pgaddr) memset((pgaddr), 0, PAGE_SIZE)
15 #define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
17 #define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE)
18 #define copy_user_page(vto, vfrom, vaddr, topg) memcpy((vto), (vfrom), PAGE_SIZE)
21 * These are used to make use of C type-checking..
23 typedef struct { unsigned long pte
; } pte_t
;
24 typedef struct { unsigned long ste
[64];} pmd_t
;
25 typedef struct { pmd_t pue
[1]; } pud_t
;
26 typedef struct { pud_t pge
[1]; } pgd_t
;
27 typedef struct { unsigned long pgprot
; } pgprot_t
;
28 typedef struct page
*pgtable_t
;
30 #define pte_val(x) ((x).pte)
31 #define pmd_val(x) ((x).ste[0])
32 #define pud_val(x) ((x).pue[0])
33 #define pgd_val(x) ((x).pge[0])
34 #define pgprot_val(x) ((x).pgprot)
36 #define __pte(x) ((pte_t) { (x) } )
37 #define __pmd(x) ((pmd_t) { (x) } )
38 #define __pud(x) ((pud_t) { (x) } )
39 #define __pgd(x) ((pgd_t) { (x) } )
40 #define __pgprot(x) ((pgprot_t) { (x) } )
41 #define PTE_MASK PAGE_MASK
43 #define devmem_is_allowed(pfn) 1
45 #define __pa(vaddr) virt_to_phys((void *) (unsigned long) (vaddr))
46 #define __va(paddr) phys_to_virt((unsigned long) (paddr))
48 #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
50 extern unsigned long max_low_pfn
;
51 extern unsigned long min_low_pfn
;
52 extern unsigned long max_pfn
;
55 #define pfn_valid(pfn) ((pfn) < max_mapnr)
57 #define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
58 #define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_low_pfn)
62 #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
63 #define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
67 #define VM_DATA_DEFAULT_FLAGS \
68 (VM_READ | VM_WRITE | \
69 ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
70 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
73 #endif /* __ASSEMBLY__ */
75 #include <asm-generic/memory_model.h>
76 #include <asm-generic/page.h>
78 #endif /* _ASM_PAGE_H */