X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-i386%2Fpage.h;h=ee426b0ad57f4730df876d5601081709d5b3f617;hb=refs%2Fheads%2Fvserver;hp=527578b79b27416bd257dc388a3a7be6e8e79791;hpb=c7b5ebbddf7bcd3651947760f423e3783bbe6573;p=linux-2.6.git

diff --git a/include/asm-i386/page.h b/include/asm-i386/page.h
index 527578b79..ee426b0ad 100644
--- a/include/asm-i386/page.h
+++ b/include/asm-i386/page.h
@@ -12,7 +12,6 @@
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 
-#include <linux/config.h>
 
 #ifdef CONFIG_X86_USE_3DNOW
 
@@ -36,27 +35,32 @@
 #define clear_user_page(page, vaddr, pg)	clear_page(page)
 #define copy_user_page(to, from, vaddr, pg)	copy_page(to, from)
 
+#define alloc_zeroed_user_highpage(vma, vaddr) alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO, vma, vaddr)
+#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
+
 /*
  * These are used to make use of C type-checking..
  */
+extern int nx_enabled;
 #ifdef CONFIG_X86_PAE
 extern unsigned long long __supported_pte_mask;
-extern int nx_enabled;
 typedef struct { unsigned long pte_low, pte_high; } pte_t;
 typedef struct { unsigned long long pmd; } pmd_t;
 typedef struct { unsigned long long pgd; } pgd_t;
 typedef struct { unsigned long long pgprot; } pgprot_t;
+#define pmd_val(x)	((x).pmd)
 #define pte_val(x)	((x).pte_low | ((unsigned long long)(x).pte_high << 32))
+#define __pmd(x) ((pmd_t) { (x) } )
 #define HPAGE_SHIFT	21
+#include <asm-generic/pgtable-nopud.h>
 #else
-#define nx_enabled 0
 typedef struct { unsigned long pte_low; } pte_t;
-typedef struct { unsigned long pmd; } pmd_t;
 typedef struct { unsigned long pgd; } pgd_t;
 typedef struct { unsigned long pgprot; } pgprot_t;
 #define boot_pte_t pte_t /* or would you rather have a typedef */
 #define pte_val(x)	((x).pte_low)
 #define HPAGE_SHIFT	22
+#include <asm-generic/pgtable-nopmd.h>
 #endif
 #define PTE_MASK	PAGE_MASK
 
@@ -64,15 +68,13 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 #define HPAGE_SIZE	((1UL) << HPAGE_SHIFT)
 #define HPAGE_MASK	(~(HPAGE_SIZE - 1))
 #define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
+#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
 #endif
 
-
-#define pmd_val(x)	((x).pmd)
 #define pgd_val(x)	((x).pgd)
 #define pgprot_val(x)	((x).pgprot)
 
 #define __pte(x) ((pte_t) { (x) } )
-#define __pmd(x) ((pmd_t) { (x) } )
 #define __pgd(x) ((pgd_t) { (x) } )
 #define __pgprot(x)	((pgprot_t) { (x) } )
 
@@ -96,55 +98,41 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 
 #ifndef __ASSEMBLY__
 
+struct vm_area_struct;
+
 /*
  * This much address space is reserved for vmalloc() and iomap()
  * as well as fixmap mappings.
  */
 extern unsigned int __VMALLOC_RESERVE;
 
-/* Pure 2^n version of get_order */
-static __inline__ int get_order(unsigned long size)
-{
-	int order;
+extern int sysctl_legacy_va_layout;
 
-	size = (size-1) >> (PAGE_SHIFT-1);
-	order = -1;
-	do {
-		size >>= 1;
-		order++;
-	} while (size);
-	return order;
-}
+extern int page_is_ram(unsigned long pagenr);
 
-extern int sysctl_legacy_va_layout;
+extern int devmem_is_allowed(unsigned long pagenr);
 
 #endif /* __ASSEMBLY__ */
 
-#if   defined(CONFIG_SPLIT_3GB)
-#define __PAGE_OFFSET		(0xC0000000)
-#elif defined(CONFIG_SPLIT_25GB)
-#define __PAGE_OFFSET		(0xA0000000)
-#elif defined(CONFIG_SPLIT_2GB)
-#define __PAGE_OFFSET		(0x80000000)
-#elif defined(CONFIG_SPLIT_15GB)
-#define __PAGE_OFFSET		(0x60000000)
-#elif defined(CONFIG_SPLIT_1GB)
-#define __PAGE_OFFSET		(0x40000000)
+#ifdef __ASSEMBLY__
+#define __PAGE_OFFSET		CONFIG_PAGE_OFFSET
+#else
+#define __PAGE_OFFSET		((unsigned long)CONFIG_PAGE_OFFSET)
 #endif
 
+
 #define PAGE_OFFSET		((unsigned long)__PAGE_OFFSET)
 #define VMALLOC_RESERVE		((unsigned long)__VMALLOC_RESERVE)
-#define __MAXMEM		(-__PAGE_OFFSET-__VMALLOC_RESERVE)
-#define MAXMEM			((unsigned long)(-PAGE_OFFSET-VMALLOC_RESERVE))
-
+#define MAXMEM			(-__PAGE_OFFSET-__VMALLOC_RESERVE)
 #define __pa(x)			((unsigned long)(x)-PAGE_OFFSET)
+/* __pa_symbol should be used for C visible symbols.
+   This seems to be the official gcc blessed way to do such arithmetic. */
+#define __pa_symbol(x)          __pa(RELOC_HIDE((unsigned long)(x),0))
 #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
 #define pfn_to_kaddr(pfn)      __va((pfn) << PAGE_SHIFT)
-#ifndef CONFIG_DISCONTIGMEM
-#define pfn_to_page(pfn)	(mem_map + (pfn))
-#define page_to_pfn(page)	((unsigned long)((page) - mem_map))
+#ifdef CONFIG_FLATMEM
 #define pfn_valid(pfn)		((pfn) < max_mapnr)
-#endif /* !CONFIG_DISCONTIGMEM */
+#endif /* CONFIG_FLATMEM */
 #define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
 
 #define virt_addr_valid(kaddr)	pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
@@ -154,6 +142,12 @@ extern int sysctl_legacy_va_layout;
 	((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
 		 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
+#include <asm-generic/memory_model.h>
+#include <asm-generic/page.h>
+
+#ifndef CONFIG_COMPAT_VDSO
+#define __HAVE_ARCH_GATE_AREA 1
+#endif
 #endif /* __KERNEL__ */
 
 #endif /* _I386_PAGE_H */