diff options
Diffstat (limited to 'include/asm-x86/page_64.h')
| -rw-r--r-- | include/asm-x86/page_64.h | 110 |
1 files changed, 24 insertions, 86 deletions
diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h index c3b52bcb171e..c1ac42d8707f 100644 --- a/include/asm-x86/page_64.h +++ b/include/asm-x86/page_64.h @@ -1,15 +1,9 @@ #ifndef _X86_64_PAGE_H #define _X86_64_PAGE_H -#include <linux/const.h> +#define PAGETABLE_LEVELS 4 -/* PAGE_SHIFT determines the page size */ -#define PAGE_SHIFT 12 -#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) -#define PAGE_MASK (~(PAGE_SIZE-1)) -#define PHYSICAL_PAGE_MASK (~(PAGE_SIZE-1) & __PHYSICAL_MASK) - -#define THREAD_ORDER 1 +#define THREAD_ORDER 1 #define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) #define CURRENT_MASK (~(THREAD_SIZE-1)) @@ -29,54 +23,7 @@ #define MCE_STACK 5 #define N_EXCEPTION_STACKS 5 /* hw limit: 7 */ -#define LARGE_PAGE_MASK (~(LARGE_PAGE_SIZE-1)) -#define LARGE_PAGE_SIZE (_AC(1,UL) << PMD_SHIFT) - -#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) - -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - -extern unsigned long end_pfn; - -void clear_page(void *); -void copy_page(void *, void *); - -#define clear_user_page(page, vaddr, pg) clear_page(page) -#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) - -#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ - alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) -#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE -/* - * These are used to make use of C type-checking.. - */ -typedef struct { unsigned long pte; } pte_t; -typedef struct { unsigned long pmd; } pmd_t; -typedef struct { unsigned long pud; } pud_t; -typedef struct { unsigned long pgd; } pgd_t; -#define PTE_MASK PHYSICAL_PAGE_MASK - -typedef struct { unsigned long pgprot; } pgprot_t; - -extern unsigned long phys_base; - -#define pte_val(x) ((x).pte) -#define pmd_val(x) ((x).pmd) -#define pud_val(x) ((x).pud) -#define pgd_val(x) ((x).pgd) -#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) } ) - -#endif /* !__ASSEMBLY__ */ +#define __PAGE_OFFSET _AC(0xffff810000000000, UL) #define __PHYSICAL_START CONFIG_PHYSICAL_START #define __KERNEL_ALIGN 0x200000 @@ -92,53 +39,44 @@ extern unsigned long phys_base; #define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START) #define __START_KERNEL_map _AC(0xffffffff80000000, UL) -#define __PAGE_OFFSET _AC(0xffff810000000000, UL) - -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) /* See Documentation/x86_64/mm.txt for a description of the memory map. */ #define __PHYSICAL_MASK_SHIFT 46 -#define __PHYSICAL_MASK ((_AC(1,UL) << __PHYSICAL_MASK_SHIFT) - 1) #define __VIRTUAL_MASK_SHIFT 48 -#define __VIRTUAL_MASK ((_AC(1,UL) << __VIRTUAL_MASK_SHIFT) - 1) #define KERNEL_TEXT_SIZE (40*1024*1024) #define KERNEL_TEXT_START _AC(0xffffffff80000000, UL) -#define PAGE_OFFSET __PAGE_OFFSET #ifndef __ASSEMBLY__ +void clear_page(void *page); +void copy_page(void *to, void *from); -#include <asm/bug.h> +extern unsigned long end_pfn; +extern unsigned long end_pfn_map; +extern unsigned long phys_base; extern unsigned long __phys_addr(unsigned long); +#define __phys_reloc_hide(x) (x) -#endif /* __ASSEMBLY__ */ - -#define __pa(x) __phys_addr((unsigned long)(x)) -#define __pa_symbol(x) __phys_addr((unsigned long)(x)) - -#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) -#define __boot_va(x) __va(x) -#define __boot_pa(x) __pa(x) -#ifdef CONFIG_FLATMEM -#define pfn_valid(pfn) ((pfn) < end_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 pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) +/* + * These are used to make use of C type-checking.. + */ +typedef unsigned long pteval_t; +typedef unsigned long pmdval_t; +typedef unsigned long pudval_t; +typedef unsigned long pgdval_t; +typedef unsigned long pgprotval_t; +typedef unsigned long phys_addr_t; -#define VM_DATA_DEFAULT_FLAGS \ - (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \ - VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) +typedef struct { pteval_t pte; } pte_t; -#define __HAVE_ARCH_GATE_AREA 1 #define vmemmap ((struct page *)VMEMMAP_START) -#include <asm-generic/memory_model.h> -#include <asm-generic/page.h> +#endif /* !__ASSEMBLY__ */ + +#ifdef CONFIG_FLATMEM +#define pfn_valid(pfn) ((pfn) < end_pfn) +#endif -#endif /* __KERNEL__ */ #endif /* _X86_64_PAGE_H */ |