diff options
Diffstat (limited to 'arch/x86/include/asm/page.h')
| -rw-r--r-- | arch/x86/include/asm/page.h | 167 |
1 files changed, 3 insertions, 164 deletions
diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h index 05f2da7..467ce69 100644 --- a/arch/x86/include/asm/page.h +++ b/arch/x86/include/asm/page.h @@ -1,42 +1,9 @@ #ifndef _ASM_X86_PAGE_H #define _ASM_X86_PAGE_H -#include <linux/const.h> - -/* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT 12 -#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) - #ifdef __KERNEL__ -#define __PHYSICAL_MASK ((phys_addr_t)(1ULL << __PHYSICAL_MASK_SHIFT) - 1) -#define __VIRTUAL_MASK ((1UL << __VIRTUAL_MASK_SHIFT) - 1) - -/* Cast PAGE_MASK to a signed type so that it is sign-extended if - virtual addresses are 32-bits but physical addresses are larger - (ie, 32-bit PAE). */ -#define PHYSICAL_PAGE_MASK (((signed long)PAGE_MASK) & __PHYSICAL_MASK) - -/* PTE_PFN_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */ -#define PTE_PFN_MASK ((pteval_t)PHYSICAL_PAGE_MASK) - -/* PTE_FLAGS_MASK extracts the flags from a (pte|pmd|pud|pgd)val_t */ -#define PTE_FLAGS_MASK (~PTE_PFN_MASK) - -#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT) -#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1)) - -#define HPAGE_SHIFT PMD_SHIFT -#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT) -#define HPAGE_MASK (~(HPAGE_SIZE - 1)) -#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) - -#define HUGE_MAX_HSTATE 2 - -#ifndef __ASSEMBLY__ -#include <linux/types.h> -#endif +#include <asm/page_types.h> #ifdef CONFIG_X86_64 #include <asm/page_64.h> @@ -44,38 +11,18 @@ #include <asm/page_32.h> #endif /* CONFIG_X86_64 */ -#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET) - -#define VM_DATA_DEFAULT_FLAGS \ - (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \ - VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - - #ifndef __ASSEMBLY__ -typedef struct { pgdval_t pgd; } pgd_t; -typedef struct { pgprotval_t pgprot; } pgprot_t; - -extern int page_is_ram(unsigned long pagenr); -extern int devmem_is_allowed(unsigned long pagenr); -extern void map_devmem(unsigned long pfn, unsigned long size, - pgprot_t vma_prot); -extern void unmap_devmem(unsigned long pfn, unsigned long size, - pgprot_t vma_prot); - -extern unsigned long max_low_pfn_mapped; -extern unsigned long max_pfn_mapped; - struct page; static inline void clear_user_page(void *page, unsigned long vaddr, - struct page *pg) + struct page *pg) { clear_page(page); } static inline void copy_user_page(void *to, void *from, unsigned long vaddr, - struct page *topage) + struct page *topage) { copy_page(to, from); } @@ -84,114 +31,6 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr, alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE -static inline pgd_t native_make_pgd(pgdval_t val) -{ - return (pgd_t) { val }; -} - -static inline pgdval_t native_pgd_val(pgd_t pgd) -{ - return pgd.pgd; -} - -static inline pgdval_t pgd_flags(pgd_t pgd) -{ - return native_pgd_val(pgd) & PTE_FLAGS_MASK; -} - -#if PAGETABLE_LEVELS >= 3 -#if PAGETABLE_LEVELS == 4 -typedef struct { pudval_t pud; } pud_t; - -static inline pud_t native_make_pud(pmdval_t val) -{ - return (pud_t) { val }; -} - -static inline pudval_t native_pud_val(pud_t pud) -{ - return pud.pud; -} -#else /* PAGETABLE_LEVELS == 3 */ -#include <asm-generic/pgtable-nopud.h> - -static inline pudval_t native_pud_val(pud_t pud) -{ - return native_pgd_val(pud.pgd); -} -#endif /* PAGETABLE_LEVELS == 4 */ - -static inline pudval_t pud_flags(pud_t pud) -{ - return native_pud_val(pud) & PTE_FLAGS_MASK; -} - -typedef struct { pmdval_t pmd; } pmd_t; - -static inline pmd_t native_make_pmd(pmdval_t val) -{ - return (pmd_t) { val }; -} - -static inline pmdval_t native_pmd_val(pmd_t pmd) -{ - return pmd.pmd; -} - -#else /* PAGETABLE_LEVELS == 2 */ -#include <asm-generic/pgtable-nopmd.h> - -static inline pmdval_t native_pmd_val(pmd_t pmd) -{ - return native_pgd_val(pmd.pud.pgd); -} -#endif /* PAGETABLE_LEVELS >= 3 */ - -static inline pmdval_t pmd_flags(pmd_t pmd) -{ - return native_pmd_val(pmd) & PTE_FLAGS_MASK; -} - -static inline pte_t native_make_pte(pteval_t val) -{ - return (pte_t) { .pte = val }; -} - -static inline pteval_t native_pte_val(pte_t pte) -{ - return pte.pte; -} - -static inline pteval_t pte_flags(pte_t pte) -{ - return native_pte_val(pte) & PTE_FLAGS_MASK; -} - -#define pgprot_val(x) ((x).pgprot) -#define __pgprot(x) ((pgprot_t) { (x) } ) - -#ifdef CONFIG_PARAVIRT -#include <asm/paravirt.h> -#else /* !CONFIG_PARAVIRT */ - -#define pgd_val(x) native_pgd_val(x) -#define __pgd(x) native_make_pgd(x) - -#ifndef __PAGETABLE_PUD_FOLDED -#define pud_val(x) native_pud_val(x) -#define __pud(x) native_make_pud(x) -#endif - -#ifndef __PAGETABLE_PMD_FOLDED -#define pmd_val(x) native_pmd_val(x) -#define __pmd(x) native_make_pmd(x) -#endif - -#define pte_val(x) native_pte_val(x) -#define __pte(x) native_make_pte(x) - -#endif /* CONFIG_PARAVIRT */ - #define __pa(x) __phys_addr((unsigned long)(x)) #define __pa_nodebug(x) __phys_addr_nodebug((unsigned long)(x)) /* __pa_symbol should be used for C visible symbols. |