Skip to content

L
linux
Commit 11b7c7dc authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge Committed by Ingo Molnar
Browse files
Options

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: default avatarJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent e62f4473
Show whitespace changes
Inline Side-by-side
Showing with 187 additions and 223 deletions
include/asm-x86/Kbuild
View file @ 11b7c7dc
......@@ -15,8 +15,7 @@ unifdef-y += ist.h
unifdef-y += mce.h
unifdef-y += msr.h
unifdef-y += mtrr.h
unifdef-y += page_32.h
unifdef-y += page_64.h
unifdef-y += page.h
unifdef-y += posix_types_32.h
unifdef-y += posix_types_64.h
unifdef-y += ptrace.h
......
include/asm-x86/page.h
View file @ 11b7c7dc
......@@ -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 */
include/asm-x86/page_32.h
View file @ 11b7c7dc
#ifndef _I386_PAGE_H
#define _I386_PAGE_H
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#ifndef _ASM_X86_PAGE_32_H
#define _ASM_X86_PAGE_32_H
/*
* These are used to make use of C type-checking..
* 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)
#endif /* !__ASSEMBLY__ */
#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;
}
struct vm_area_struct;
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);
#endif /* __KERNEL__ */
#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 /* _I386_PAGE_H */
#endif /* _ASM_X86_PAGE_32_H */
include/asm-x86/page_64.h
View file @ 11b7c7dc
#ifndef _X86_64_PAGE_H
#define _X86_64_PAGE_H
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
#define PAGETABLE_LEVELS 4
#endif /* !__ASSEMBLY__ */
#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)
#endif /* __ASSEMBLY__ */
/*
* 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;
#endif /* __KERNEL__ */
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__ */
#ifdef CONFIG_FLATMEM
#define pfn_valid(pfn) ((pfn) < end_pfn)
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7