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x86: page.h: move things back to their own files
# HG changeset patch # User Jeremy Fitzhardinge <jeremy@xensource.com> # Date 1199321648 28800 # Node ID 22f6a5902285b58bfc1fbbd9e183498c9017bd78 # Parent bba9287641ff90e836d090d80b5c0a846aab7162 x86: page.h: move things back to their own files Oops, asm/page.h has turned into an #ifdef hellhole. Move 32/64-specific things back to their own headers to make it somewhat comprehensible... Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jeremy Fitzhardinge
Ingo Molnar
parent
e62f4473f3
commit
11b7c7dc94
@ -15,8 +15,7 @@ unifdef-y += ist.h
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unifdef-y += mce.h
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unifdef-y += msr.h
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unifdef-y += mtrr.h
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unifdef-y += page_32.h
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unifdef-y += page_64.h
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unifdef-y += page.h
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unifdef-y += posix_types_32.h
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unifdef-y += posix_types_64.h
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unifdef-y += ptrace.h
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@ -8,6 +8,8 @@
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#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
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#define PAGE_MASK (~(PAGE_SIZE-1))
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#ifdef __KERNEL__
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#define PHYSICAL_PAGE_MASK (PAGE_MASK & __PHYSICAL_MASK)
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#define PTE_MASK PHYSICAL_PAGE_MASK
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@ -30,208 +32,11 @@
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#endif
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#ifdef CONFIG_X86_64
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#define PAGETABLE_LEVELS 4
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#define THREAD_ORDER 1
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#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
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#define CURRENT_MASK (~(THREAD_SIZE-1))
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#define EXCEPTION_STACK_ORDER 0
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#define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
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#define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1)
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#define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER)
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#define IRQSTACK_ORDER 2
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#define IRQSTACKSIZE (PAGE_SIZE << IRQSTACK_ORDER)
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#define STACKFAULT_STACK 1
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#define DOUBLEFAULT_STACK 2
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#define NMI_STACK 3
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#define DEBUG_STACK 4
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#define MCE_STACK 5
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#define N_EXCEPTION_STACKS 5 /* hw limit: 7 */
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#define __PAGE_OFFSET _AC(0xffff810000000000, UL)
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#define __PHYSICAL_START CONFIG_PHYSICAL_START
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#define __KERNEL_ALIGN 0x200000
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/*
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* Make sure kernel is aligned to 2MB address. Catching it at compile
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* time is better. Change your config file and compile the kernel
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* for a 2MB aligned address (CONFIG_PHYSICAL_START)
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*/
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#if (CONFIG_PHYSICAL_START % __KERNEL_ALIGN) != 0
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#error "CONFIG_PHYSICAL_START must be a multiple of 2MB"
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#endif
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#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
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#define __START_KERNEL_map _AC(0xffffffff80000000, UL)
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/* See Documentation/x86_64/mm.txt for a description of the memory map. */
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#define __PHYSICAL_MASK_SHIFT 46
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#define __VIRTUAL_MASK_SHIFT 48
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#define KERNEL_TEXT_SIZE (40*1024*1024)
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#define KERNEL_TEXT_START _AC(0xffffffff80000000, UL)
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#ifndef __ASSEMBLY__
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void clear_page(void *page);
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void copy_page(void *to, void *from);
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extern unsigned long end_pfn;
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extern unsigned long end_pfn_map;
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extern unsigned long phys_base;
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extern unsigned long __phys_addr(unsigned long);
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#define __phys_reloc_hide(x) (x)
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/*
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* These are used to make use of C type-checking..
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*/
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typedef unsigned long pteval_t;
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typedef unsigned long pmdval_t;
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typedef unsigned long pudval_t;
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typedef unsigned long pgdval_t;
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typedef unsigned long pgprotval_t;
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typedef unsigned long phys_addr_t;
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typedef struct { pteval_t pte; } pte_t;
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#define native_pte_val(x) ((x).pte)
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#define native_make_pte(x) ((pte_t) { (x) } )
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#define vmemmap ((struct page *)VMEMMAP_START)
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#endif /* !__ASSEMBLY__ */
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#include <asm/page_64.h>
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#else
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#include <asm/page_32.h>
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#endif /* CONFIG_X86_64 */
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#ifdef CONFIG_X86_32
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/*
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* This handles the memory map.
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*
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* A __PAGE_OFFSET of 0xC0000000 means that the kernel has
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* a virtual address space of one gigabyte, which limits the
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* amount of physical memory you can use to about 950MB.
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*
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* If you want more physical memory than this then see the CONFIG_HIGHMEM4G
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* and CONFIG_HIGHMEM64G options in the kernel configuration.
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*/
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#define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL)
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#ifdef CONFIG_X86_PAE
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#define __PHYSICAL_MASK_SHIFT 36
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#define __VIRTUAL_MASK_SHIFT 32
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#define PAGETABLE_LEVELS 3
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#ifndef __ASSEMBLY__
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typedef u64 pteval_t;
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typedef u64 pmdval_t;
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typedef u64 pudval_t;
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typedef u64 pgdval_t;
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typedef u64 pgprotval_t;
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typedef u64 phys_addr_t;
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typedef struct { unsigned long pte_low, pte_high; } pte_t;
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static inline unsigned long long native_pte_val(pte_t pte)
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{
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return pte.pte_low | ((unsigned long long)pte.pte_high << 32);
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}
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static inline pte_t native_make_pte(unsigned long long val)
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{
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return (pte_t) { .pte_low = val, .pte_high = (val >> 32) } ;
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}
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#endif /* __ASSEMBLY__
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*/
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#else /* !CONFIG_X86_PAE */
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#define __PHYSICAL_MASK_SHIFT 32
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#define __VIRTUAL_MASK_SHIFT 32
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#define PAGETABLE_LEVELS 2
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#ifndef __ASSEMBLY__
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typedef unsigned long pteval_t;
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typedef unsigned long pmdval_t;
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typedef unsigned long pudval_t;
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typedef unsigned long pgdval_t;
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typedef unsigned long pgprotval_t;
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typedef unsigned long phys_addr_t;
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typedef struct { pteval_t pte_low; } pte_t;
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typedef pte_t boot_pte_t;
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static inline unsigned long native_pte_val(pte_t pte)
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{
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return pte.pte_low;
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}
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static inline pte_t native_make_pte(unsigned long val)
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{
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return (pte_t) { .pte_low = val };
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}
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_X86_PAE */
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#ifdef CONFIG_HUGETLB_PAGE
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#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
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#endif
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#ifndef __ASSEMBLY__
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#define __phys_addr(x) ((x)-PAGE_OFFSET)
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#define __phys_reloc_hide(x) RELOC_HIDE((x), 0)
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#ifdef CONFIG_FLATMEM
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#define pfn_valid(pfn) ((pfn) < max_mapnr)
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#endif /* CONFIG_FLATMEM */
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extern int nx_enabled;
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/*
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* This much address space is reserved for vmalloc() and iomap()
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* as well as fixmap mappings.
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*/
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extern unsigned int __VMALLOC_RESERVE;
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extern int sysctl_legacy_va_layout;
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extern int page_is_ram(unsigned long pagenr);
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#define VMALLOC_RESERVE ((unsigned long)__VMALLOC_RESERVE)
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#define MAXMEM (-__PAGE_OFFSET-__VMALLOC_RESERVE)
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#ifdef CONFIG_X86_USE_3DNOW
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#include <asm/mmx.h>
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static inline void clear_page(void *page)
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{
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mmx_clear_page(page);
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}
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static inline void copy_page(void *to, void *from)
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{
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mmx_copy_page(to, from);
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}
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#else /* !CONFIG_X86_USE_3DNOW */
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#include <linux/string.h>
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static inline void clear_page(void *page)
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{
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memset(page, 0, PAGE_SIZE);
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}
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static inline void copy_page(void *to, void *from)
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{
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memcpy(to, from, PAGE_SIZE);
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}
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#endif /* CONFIG_X86_3DNOW */
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#endif /* !__ASSEMBLY__ */
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#endif /* CONFIG_X86_32 */
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#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET)
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#define VM_DATA_DEFAULT_FLAGS \
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@ -349,10 +154,5 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
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#define __HAVE_ARCH_GATE_AREA 1
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#ifdef CONFIG_X86_32
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# include "page_32.h"
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#else
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# include "page_64.h"
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#endif
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#endif /* __KERNEL__ */
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#endif /* _ASM_X86_PAGE_H */
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@ -1,23 +1,124 @@
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#ifndef _I386_PAGE_H
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#define _I386_PAGE_H
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#ifdef __KERNEL__
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#ifndef __ASSEMBLY__
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#ifndef _ASM_X86_PAGE_32_H
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#define _ASM_X86_PAGE_32_H
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/*
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* These are used to make use of C type-checking..
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* This handles the memory map.
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*
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* A __PAGE_OFFSET of 0xC0000000 means that the kernel has
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* a virtual address space of one gigabyte, which limits the
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* amount of physical memory you can use to about 950MB.
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*
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* If you want more physical memory than this then see the CONFIG_HIGHMEM4G
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* and CONFIG_HIGHMEM64G options in the kernel configuration.
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*/
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#define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL)
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#endif /* !__ASSEMBLY__ */
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#ifdef CONFIG_X86_PAE
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#define __PHYSICAL_MASK_SHIFT 36
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#define __VIRTUAL_MASK_SHIFT 32
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#define PAGETABLE_LEVELS 3
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#ifndef __ASSEMBLY__
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typedef u64 pteval_t;
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typedef u64 pmdval_t;
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typedef u64 pudval_t;
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typedef u64 pgdval_t;
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typedef u64 pgprotval_t;
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typedef u64 phys_addr_t;
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struct vm_area_struct;
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typedef struct { unsigned long pte_low, pte_high; } pte_t;
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#endif /* __ASSEMBLY__ */
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static inline unsigned long long native_pte_val(pte_t pte)
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{
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return pte.pte_low | ((unsigned long long)pte.pte_high << 32);
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}
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static inline pte_t native_make_pte(unsigned long long val)
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{
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return (pte_t) { .pte_low = val, .pte_high = (val >> 32) } ;
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}
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#endif /* __ASSEMBLY__
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*/
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#else /* !CONFIG_X86_PAE */
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#define __PHYSICAL_MASK_SHIFT 32
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#define __VIRTUAL_MASK_SHIFT 32
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#define PAGETABLE_LEVELS 2
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#endif /* __KERNEL__ */
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#ifndef __ASSEMBLY__
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typedef unsigned long pteval_t;
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typedef unsigned long pmdval_t;
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typedef unsigned long pudval_t;
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typedef unsigned long pgdval_t;
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typedef unsigned long pgprotval_t;
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typedef unsigned long phys_addr_t;
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#endif /* _I386_PAGE_H */
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typedef struct { pteval_t pte_low; } pte_t;
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typedef pte_t boot_pte_t;
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static inline unsigned long native_pte_val(pte_t pte)
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{
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return pte.pte_low;
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}
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static inline pte_t native_make_pte(unsigned long val)
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{
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return (pte_t) { .pte_low = val };
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}
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_X86_PAE */
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#ifdef CONFIG_HUGETLB_PAGE
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#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
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#endif
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#ifndef __ASSEMBLY__
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#define __phys_addr(x) ((x)-PAGE_OFFSET)
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#define __phys_reloc_hide(x) RELOC_HIDE((x), 0)
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#ifdef CONFIG_FLATMEM
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#define pfn_valid(pfn) ((pfn) < max_mapnr)
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#endif /* CONFIG_FLATMEM */
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extern int nx_enabled;
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/*
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* This much address space is reserved for vmalloc() and iomap()
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* as well as fixmap mappings.
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*/
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extern unsigned int __VMALLOC_RESERVE;
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extern int sysctl_legacy_va_layout;
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extern int page_is_ram(unsigned long pagenr);
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#define VMALLOC_RESERVE ((unsigned long)__VMALLOC_RESERVE)
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#define MAXMEM (-__PAGE_OFFSET-__VMALLOC_RESERVE)
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#ifdef CONFIG_X86_USE_3DNOW
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#include <asm/mmx.h>
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static inline void clear_page(void *page)
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{
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mmx_clear_page(page);
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}
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static inline void copy_page(void *to, void *from)
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{
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mmx_copy_page(to, from);
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}
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#else /* !CONFIG_X86_USE_3DNOW */
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#include <linux/string.h>
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static inline void clear_page(void *page)
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{
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memset(page, 0, PAGE_SIZE);
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}
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static inline void copy_page(void *to, void *from)
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{
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memcpy(to, from, PAGE_SIZE);
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}
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#endif /* CONFIG_X86_3DNOW */
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#endif /* !__ASSEMBLY__ */
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#endif /* _ASM_X86_PAGE_32_H */
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@ -1,17 +1,81 @@
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#ifndef _X86_64_PAGE_H
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#define _X86_64_PAGE_H
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#ifdef __KERNEL__
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#ifndef __ASSEMBLY__
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#define PAGETABLE_LEVELS 4
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#endif /* !__ASSEMBLY__ */
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#define THREAD_ORDER 1
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#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
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#define CURRENT_MASK (~(THREAD_SIZE-1))
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#define EXCEPTION_STACK_ORDER 0
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#define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
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#define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1)
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#define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER)
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#define IRQSTACK_ORDER 2
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#define IRQSTACKSIZE (PAGE_SIZE << IRQSTACK_ORDER)
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#define STACKFAULT_STACK 1
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#define DOUBLEFAULT_STACK 2
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#define NMI_STACK 3
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#define DEBUG_STACK 4
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#define MCE_STACK 5
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#define N_EXCEPTION_STACKS 5 /* hw limit: 7 */
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#define __PAGE_OFFSET _AC(0xffff810000000000, UL)
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#define __PHYSICAL_START CONFIG_PHYSICAL_START
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#define __KERNEL_ALIGN 0x200000
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/*
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* Make sure kernel is aligned to 2MB address. Catching it at compile
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* time is better. Change your config file and compile the kernel
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* for a 2MB aligned address (CONFIG_PHYSICAL_START)
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*/
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#if (CONFIG_PHYSICAL_START % __KERNEL_ALIGN) != 0
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#error "CONFIG_PHYSICAL_START must be a multiple of 2MB"
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#endif
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#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
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#define __START_KERNEL_map _AC(0xffffffff80000000, UL)
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/* See Documentation/x86_64/mm.txt for a description of the memory map. */
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#define __PHYSICAL_MASK_SHIFT 46
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#define __VIRTUAL_MASK_SHIFT 48
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#define KERNEL_TEXT_SIZE (40*1024*1024)
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#define KERNEL_TEXT_START _AC(0xffffffff80000000, UL)
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#ifndef __ASSEMBLY__
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void clear_page(void *page);
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void copy_page(void *to, void *from);
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extern unsigned long end_pfn;
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extern unsigned long end_pfn_map;
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extern unsigned long phys_base;
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#endif /* __ASSEMBLY__ */
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extern unsigned long __phys_addr(unsigned long);
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#define __phys_reloc_hide(x) (x)
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#endif /* __KERNEL__ */
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/*
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* These are used to make use of C type-checking..
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*/
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typedef unsigned long pteval_t;
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typedef unsigned long pmdval_t;
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typedef unsigned long pudval_t;
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typedef unsigned long pgdval_t;
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typedef unsigned long pgprotval_t;
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typedef unsigned long phys_addr_t;
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typedef struct { pteval_t pte; } pte_t;
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#define native_pte_val(x) ((x).pte)
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#define native_make_pte(x) ((pte_t) { (x) } )
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#define vmemmap ((struct page *)VMEMMAP_START)
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#endif /* !__ASSEMBLY__ */
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#ifdef CONFIG_FLATMEM
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#define pfn_valid(pfn) ((pfn) < end_pfn)
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