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author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-01-30 13:32:44 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:32:44 +0100 |
commit | 11b7c7dc945b8802c459baa3304c1b501d2bf872 (patch) | |
tree | e07b1dbc96584362eabcca91f43177e15e0a1ced /include/asm-x86/page.h | |
parent | e62f4473f32a882a537b32cb7202da8d5d7c4f1f (diff) | |
download | linux-11b7c7dc945b8802c459baa3304c1b501d2bf872.tar.gz linux-11b7c7dc945b8802c459baa3304c1b501d2bf872.tar.bz2 linux-11b7c7dc945b8802c459baa3304c1b501d2bf872.zip |
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>
Diffstat (limited to 'include/asm-x86/page.h')
-rw-r--r-- | include/asm-x86/page.h | 212 |
1 files changed, 6 insertions, 206 deletions
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h index f65a2ae6e323..3a00d0d9dfd3 100644 --- a/include/asm-x86/page.h +++ b/include/asm-x86/page.h @@ -8,6 +8,8 @@ #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) +#ifdef __KERNEL__ + #define PHYSICAL_PAGE_MASK (PAGE_MASK & __PHYSICAL_MASK) #define PTE_MASK PHYSICAL_PAGE_MASK @@ -30,208 +32,11 @@ #endif #ifdef CONFIG_X86_64 -#define PAGETABLE_LEVELS 4 - -#define THREAD_ORDER 1 -#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER) -#define CURRENT_MASK (~(THREAD_SIZE-1)) - -#define EXCEPTION_STACK_ORDER 0 -#define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER) - -#define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1) -#define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER) - -#define IRQSTACK_ORDER 2 -#define IRQSTACKSIZE (PAGE_SIZE << IRQSTACK_ORDER) - -#define STACKFAULT_STACK 1 -#define DOUBLEFAULT_STACK 2 -#define NMI_STACK 3 -#define DEBUG_STACK 4 -#define MCE_STACK 5 -#define N_EXCEPTION_STACKS 5 /* hw limit: 7 */ - -#define __PAGE_OFFSET _AC(0xffff810000000000, UL) - -#define __PHYSICAL_START CONFIG_PHYSICAL_START -#define __KERNEL_ALIGN 0x200000 - -/* - * Make sure kernel is aligned to 2MB address. Catching it at compile - * time is better. Change your config file and compile the kernel - * for a 2MB aligned address (CONFIG_PHYSICAL_START) - */ -#if (CONFIG_PHYSICAL_START % __KERNEL_ALIGN) != 0 -#error "CONFIG_PHYSICAL_START must be a multiple of 2MB" -#endif - -#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START) -#define __START_KERNEL_map _AC(0xffffffff80000000, UL) - -/* See Documentation/x86_64/mm.txt for a description of the memory map. */ -#define __PHYSICAL_MASK_SHIFT 46 -#define __VIRTUAL_MASK_SHIFT 48 - -#define KERNEL_TEXT_SIZE (40*1024*1024) -#define KERNEL_TEXT_START _AC(0xffffffff80000000, UL) - -#ifndef __ASSEMBLY__ -void clear_page(void *page); -void copy_page(void *to, void *from); - -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) - -/* - * 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; - -typedef struct { pteval_t pte; } pte_t; - -#define native_pte_val(x) ((x).pte) -#define native_make_pte(x) ((pte_t) { (x) } ) - -#define vmemmap ((struct page *)VMEMMAP_START) - -#endif /* !__ASSEMBLY__ */ - +#include <asm/page_64.h> +#else +#include <asm/page_32.h> #endif /* CONFIG_X86_64 */ -#ifdef CONFIG_X86_32 - -/* - * This handles the memory map. - * - * A __PAGE_OFFSET of 0xC0000000 means that the kernel has - * a virtual address space of one gigabyte, which limits the - * amount of physical memory you can use to about 950MB. - * - * If you want more physical memory than this then see the CONFIG_HIGHMEM4G - * and CONFIG_HIGHMEM64G options in the kernel configuration. - */ -#define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) - -#ifdef CONFIG_X86_PAE -#define __PHYSICAL_MASK_SHIFT 36 -#define __VIRTUAL_MASK_SHIFT 32 -#define PAGETABLE_LEVELS 3 - -#ifndef __ASSEMBLY__ -typedef u64 pteval_t; -typedef u64 pmdval_t; -typedef u64 pudval_t; -typedef u64 pgdval_t; -typedef u64 pgprotval_t; -typedef u64 phys_addr_t; - -typedef struct { unsigned long pte_low, pte_high; } pte_t; - -static inline unsigned long long native_pte_val(pte_t pte) -{ - return pte.pte_low | ((unsigned long long)pte.pte_high << 32); -} - -static inline pte_t native_make_pte(unsigned long long val) -{ - return (pte_t) { .pte_low = val, .pte_high = (val >> 32) } ; -} - -#endif /* __ASSEMBLY__ - */ -#else /* !CONFIG_X86_PAE */ -#define __PHYSICAL_MASK_SHIFT 32 -#define __VIRTUAL_MASK_SHIFT 32 -#define PAGETABLE_LEVELS 2 - -#ifndef __ASSEMBLY__ -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; - -typedef struct { pteval_t pte_low; } pte_t; -typedef pte_t boot_pte_t; - -static inline unsigned long native_pte_val(pte_t pte) -{ - return pte.pte_low; -} - -static inline pte_t native_make_pte(unsigned long val) -{ - return (pte_t) { .pte_low = val }; -} - -#endif /* __ASSEMBLY__ */ -#endif /* CONFIG_X86_PAE */ - -#ifdef CONFIG_HUGETLB_PAGE -#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA -#endif - -#ifndef __ASSEMBLY__ -#define __phys_addr(x) ((x)-PAGE_OFFSET) -#define __phys_reloc_hide(x) RELOC_HIDE((x), 0) - -#ifdef CONFIG_FLATMEM -#define pfn_valid(pfn) ((pfn) < max_mapnr) -#endif /* CONFIG_FLATMEM */ - -extern int nx_enabled; - -/* - * This much address space is reserved for vmalloc() and iomap() - * as well as fixmap mappings. - */ -extern unsigned int __VMALLOC_RESERVE; -extern int sysctl_legacy_va_layout; -extern int page_is_ram(unsigned long pagenr); - -#define VMALLOC_RESERVE ((unsigned long)__VMALLOC_RESERVE) -#define MAXMEM (-__PAGE_OFFSET-__VMALLOC_RESERVE) - -#ifdef CONFIG_X86_USE_3DNOW -#include <asm/mmx.h> - -static inline void clear_page(void *page) -{ - mmx_clear_page(page); -} - -static inline void copy_page(void *to, void *from) -{ - mmx_copy_page(to, from); -} -#else /* !CONFIG_X86_USE_3DNOW */ -#include <linux/string.h> - -static inline void clear_page(void *page) -{ - memset(page, 0, PAGE_SIZE); -} - -static inline void copy_page(void *to, void *from) -{ - memcpy(to, from, PAGE_SIZE); -} -#endif /* CONFIG_X86_3DNOW */ -#endif /* !__ASSEMBLY__ */ - -#endif /* CONFIG_X86_32 */ - #define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET) #define VM_DATA_DEFAULT_FLAGS \ @@ -349,10 +154,5 @@ static inline pmdval_t native_pmd_val(pmd_t pmd) #define __HAVE_ARCH_GATE_AREA 1 -#ifdef CONFIG_X86_32 -# include "page_32.h" -#else -# include "page_64.h" -#endif - +#endif /* __KERNEL__ */ #endif /* _ASM_X86_PAGE_H */ |