forked from Minki/linux
4e0b6ca9da
They are not symmetric with each other, neither are used in real world (can not be found by grep command in source code root directory), so remove them. Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
#ifndef _ASM_PAGE_H
|
|
#define _ASM_PAGE_H
|
|
|
|
#include <asm/virtconvert.h>
|
|
#include <asm/mem-layout.h>
|
|
#include <asm/sections.h>
|
|
#include <asm/setup.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#define clear_page(pgaddr) memset((pgaddr), 0, PAGE_SIZE)
|
|
#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE)
|
|
|
|
#define clear_user_page(pgaddr, vaddr, page) memset((pgaddr), 0, PAGE_SIZE)
|
|
#define copy_user_page(vto, vfrom, vaddr, topg) memcpy((vto), (vfrom), PAGE_SIZE)
|
|
|
|
/*
|
|
* These are used to make use of C type-checking..
|
|
*/
|
|
typedef struct { unsigned long pte; } pte_t;
|
|
typedef struct { unsigned long ste[64];} pmd_t;
|
|
typedef struct { pmd_t pue[1]; } pud_t;
|
|
typedef struct { pud_t pge[1]; } pgd_t;
|
|
typedef struct { unsigned long pgprot; } pgprot_t;
|
|
typedef struct page *pgtable_t;
|
|
|
|
#define pte_val(x) ((x).pte)
|
|
#define pmd_val(x) ((x).ste[0])
|
|
#define pud_val(x) ((x).pue[0])
|
|
#define pgd_val(x) ((x).pge[0])
|
|
#define pgprot_val(x) ((x).pgprot)
|
|
|
|
#define __pte(x) ((pte_t) { (x) } )
|
|
#define __pmd(x) ((pmd_t) { { (x) } } )
|
|
#define __pud(x) ((pud_t) { (x) } )
|
|
#define __pgd(x) ((pgd_t) { (x) } )
|
|
#define __pgprot(x) ((pgprot_t) { (x) } )
|
|
#define PTE_MASK PAGE_MASK
|
|
|
|
#define devmem_is_allowed(pfn) 1
|
|
|
|
#define __pa(vaddr) virt_to_phys((void *) (unsigned long) (vaddr))
|
|
#define __va(paddr) phys_to_virt((unsigned long) (paddr))
|
|
|
|
#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
|
|
|
|
extern unsigned long max_low_pfn;
|
|
extern unsigned long min_low_pfn;
|
|
extern unsigned long max_pfn;
|
|
|
|
#ifdef CONFIG_MMU
|
|
#define pfn_valid(pfn) ((pfn) < max_mapnr)
|
|
#else
|
|
#define ARCH_PFN_OFFSET (PAGE_OFFSET >> PAGE_SHIFT)
|
|
#define pfn_valid(pfn) ((pfn) >= min_low_pfn && (pfn) < max_low_pfn)
|
|
|
|
#endif
|
|
|
|
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
|
|
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
|
|
|
|
|
|
#define VM_DATA_DEFAULT_FLAGS \
|
|
(VM_READ | VM_WRITE | \
|
|
((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
|
|
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#include <asm-generic/memory_model.h>
|
|
#include <asm-generic/getorder.h>
|
|
|
|
#endif /* _ASM_PAGE_H */
|