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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2009-02-08 18:49:05 -0800 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2009-02-11 14:54:09 -0800 |
| commit | f402a65f93c7127b2bd93a4b2fe182cd859fb4c1 (patch) | |
| tree | 968dc99e1a9ec4c6d24bb7d5e3d772c2004daacc /arch/x86/include/asm/pgtable_32.h | |
| parent | 8d19c99faf6165ef095138dd595d46b9bbb34055 (diff) | |
| download | linux-0-day-f402a65f93c7127b2bd93a4b2fe182cd859fb4c1.tar.gz linux-0-day-f402a65f93c7127b2bd93a4b2fe182cd859fb4c1.tar.xz | |
x86: Split pgtable_32.h into pgtable_32.h and pgtable_32_types.h
Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
Diffstat (limited to 'arch/x86/include/asm/pgtable_32.h')
| -rw-r--r-- | arch/x86/include/asm/pgtable_32.h | 42 |
1 files changed, 1 insertions, 41 deletions
diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h index 72d20e2a40f2f..97612fc7632f0 100644 --- a/arch/x86/include/asm/pgtable_32.h +++ b/arch/x86/include/asm/pgtable_32.h @@ -1,6 +1,7 @@ #ifndef _ASM_X86_PGTABLE_32_H #define _ASM_X86_PGTABLE_32_H +#include <asm/pgtable_32_types.h> /* * The Linux memory management assumes a three-level page table setup. On @@ -33,47 +34,6 @@ void paging_init(void); extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t); -/* - * The Linux x86 paging architecture is 'compile-time dual-mode', it - * implements both the traditional 2-level x86 page tables and the - * newer 3-level PAE-mode page tables. - */ -#ifdef CONFIG_X86_PAE -# include <asm/pgtable-3level_types.h> -# define PMD_SIZE (1UL << PMD_SHIFT) -# define PMD_MASK (~(PMD_SIZE - 1)) -#else -# include <asm/pgtable-2level_types.h> -#endif - -#define PGDIR_SIZE (1UL << PGDIR_SHIFT) -#define PGDIR_MASK (~(PGDIR_SIZE - 1)) - -/* Just any arbitrary offset to the start of the vmalloc VM area: the - * current 8MB value just means that there will be a 8MB "hole" after the - * physical memory until the kernel virtual memory starts. That means that - * any out-of-bounds memory accesses will hopefully be caught. - * The vmalloc() routines leaves a hole of 4kB between each vmalloced - * area for the same reason. ;) - */ -#define VMALLOC_OFFSET (8 * 1024 * 1024) -#define VMALLOC_START ((unsigned long)high_memory + VMALLOC_OFFSET) -#ifdef CONFIG_X86_PAE -#define LAST_PKMAP 512 -#else -#define LAST_PKMAP 1024 -#endif - -#define PKMAP_BASE ((FIXADDR_BOOT_START - PAGE_SIZE * (LAST_PKMAP + 1)) \ - & PMD_MASK) - -#ifdef CONFIG_HIGHMEM -# define VMALLOC_END (PKMAP_BASE - 2 * PAGE_SIZE) -#else -# define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE) -#endif - -#define MAXMEM (VMALLOC_END - PAGE_OFFSET - __VMALLOC_RESERVE) /* * Define this if things work differently on an i386 and an i486: |