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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 05:20:03 -0400
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 05:20:03 -0400
commit96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch)
treed947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-x86/page_64.h
parent27bd0c955648646abf2a353a8371d28c37bcd982 (diff)
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/page_64.h')
-rw-r--r--include/asm-x86/page_64.h143
1 files changed, 143 insertions, 0 deletions
diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
new file mode 100644
index 000000000000..88adf1afb0a2
--- /dev/null
+++ b/include/asm-x86/page_64.h
@@ -0,0 +1,143 @@
1#ifndef _X86_64_PAGE_H
2#define _X86_64_PAGE_H
3
4#include <linux/const.h>
5
6/* PAGE_SHIFT determines the page size */
7#define PAGE_SHIFT 12
8#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
9#define PAGE_MASK (~(PAGE_SIZE-1))
10#define PHYSICAL_PAGE_MASK (~(PAGE_SIZE-1) & __PHYSICAL_MASK)
11
12#define THREAD_ORDER 1
13#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
14#define CURRENT_MASK (~(THREAD_SIZE-1))
15
16#define EXCEPTION_STACK_ORDER 0
17#define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
18
19#define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1)
20#define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER)
21
22#define IRQSTACK_ORDER 2
23#define IRQSTACKSIZE (PAGE_SIZE << IRQSTACK_ORDER)
24
25#define STACKFAULT_STACK 1
26#define DOUBLEFAULT_STACK 2
27#define NMI_STACK 3
28#define DEBUG_STACK 4
29#define MCE_STACK 5
30#define N_EXCEPTION_STACKS 5 /* hw limit: 7 */
31
32#define LARGE_PAGE_MASK (~(LARGE_PAGE_SIZE-1))
33#define LARGE_PAGE_SIZE (_AC(1,UL) << PMD_SHIFT)
34
35#define HPAGE_SHIFT PMD_SHIFT
36#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT)
37#define HPAGE_MASK (~(HPAGE_SIZE - 1))
38#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
39
40#ifdef __KERNEL__
41#ifndef __ASSEMBLY__
42
43extern unsigned long end_pfn;
44
45void clear_page(void *);
46void copy_page(void *, void *);
47
48#define clear_user_page(page, vaddr, pg) clear_page(page)
49#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
50
51#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
52 alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
53#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
54/*
55 * These are used to make use of C type-checking..
56 */
57typedef struct { unsigned long pte; } pte_t;
58typedef struct { unsigned long pmd; } pmd_t;
59typedef struct { unsigned long pud; } pud_t;
60typedef struct { unsigned long pgd; } pgd_t;
61#define PTE_MASK PHYSICAL_PAGE_MASK
62
63typedef struct { unsigned long pgprot; } pgprot_t;
64
65extern unsigned long phys_base;
66
67#define pte_val(x) ((x).pte)
68#define pmd_val(x) ((x).pmd)
69#define pud_val(x) ((x).pud)
70#define pgd_val(x) ((x).pgd)
71#define pgprot_val(x) ((x).pgprot)
72
73#define __pte(x) ((pte_t) { (x) } )
74#define __pmd(x) ((pmd_t) { (x) } )
75#define __pud(x) ((pud_t) { (x) } )
76#define __pgd(x) ((pgd_t) { (x) } )
77#define __pgprot(x) ((pgprot_t) { (x) } )
78
79#endif /* !__ASSEMBLY__ */
80
81#define __PHYSICAL_START CONFIG_PHYSICAL_START
82#define __KERNEL_ALIGN 0x200000
83
84/*
85 * Make sure kernel is aligned to 2MB address. Catching it at compile
86 * time is better. Change your config file and compile the kernel
87 * for a 2MB aligned address (CONFIG_PHYSICAL_START)
88 */
89#if (CONFIG_PHYSICAL_START % __KERNEL_ALIGN) != 0
90#error "CONFIG_PHYSICAL_START must be a multiple of 2MB"
91#endif
92
93#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
94#define __START_KERNEL_map _AC(0xffffffff80000000, UL)
95#define __PAGE_OFFSET _AC(0xffff810000000000, UL)
96
97/* to align the pointer to the (next) page boundary */
98#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK)
99
100/* See Documentation/x86_64/mm.txt for a description of the memory map. */
101#define __PHYSICAL_MASK_SHIFT 46
102#define __PHYSICAL_MASK ((_AC(1,UL) << __PHYSICAL_MASK_SHIFT) - 1)
103#define __VIRTUAL_MASK_SHIFT 48
104#define __VIRTUAL_MASK ((_AC(1,UL) << __VIRTUAL_MASK_SHIFT) - 1)
105
106#define KERNEL_TEXT_SIZE (40*1024*1024)
107#define KERNEL_TEXT_START _AC(0xffffffff80000000, UL)
108#define PAGE_OFFSET __PAGE_OFFSET
109
110#ifndef __ASSEMBLY__
111
112#include <asm/bug.h>
113
114extern unsigned long __phys_addr(unsigned long);
115
116#endif /* __ASSEMBLY__ */
117
118#define __pa(x) __phys_addr((unsigned long)(x))
119#define __pa_symbol(x) __phys_addr((unsigned long)(x))
120
121#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
122#define __boot_va(x) __va(x)
123#define __boot_pa(x) __pa(x)
124#ifdef CONFIG_FLATMEM
125#define pfn_valid(pfn) ((pfn) < end_pfn)
126#endif
127
128#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
129#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
130#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
131
132#define VM_DATA_DEFAULT_FLAGS \
133 (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
134 VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
135
136#define __HAVE_ARCH_GATE_AREA 1
137
138#include <asm-generic/memory_model.h>
139#include <asm-generic/page.h>
140
141#endif /* __KERNEL__ */
142
143#endif /* _X86_64_PAGE_H */