proc: switch /proc/meminfo to seq_file

[linux-2.6-omap-h63xx.git] / include / asm-x86 / pgtable.h

diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index bbf0f591d1b89d9414be5faeeb70484fc5c668a9..a3dda6d615be223d1275eb8eecd89bcbc2a3b354 100644 (file)
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -1,5 +1,5 @@
-#ifndef _ASM_X86_PGTABLE_H
-#define _ASM_X86_PGTABLE_H
+#ifndef ASM_X86__PGTABLE_H
+#define ASM_X86__PGTABLE_H
 
 #define FIRST_USER_ADDRESS     0
 
@@ -15,7 +15,7 @@
 #define _PAGE_BIT_PAT          7       /* on 4KB pages */
 #define _PAGE_BIT_GLOBAL       8       /* Global TLB entry PPro+ */
 #define _PAGE_BIT_UNUSED1      9       /* available for programmer */
-#define _PAGE_BIT_UNUSED2      10
+#define _PAGE_BIT_IOMAP                10      /* flag used to indicate IO mapping */
 #define _PAGE_BIT_UNUSED3      11
 #define _PAGE_BIT_PAT_LARGE    12      /* On 2MB or 1GB pages */
 #define _PAGE_BIT_SPECIAL      _PAGE_BIT_UNUSED1
@@ -32,7 +32,7 @@
 #define _PAGE_PSE      (_AT(pteval_t, 1) << _PAGE_BIT_PSE)
 #define _PAGE_GLOBAL   (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
 #define _PAGE_UNUSED1  (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
-#define _PAGE_UNUSED2  (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED2)
+#define _PAGE_IOMAP    (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
 #define _PAGE_UNUSED3  (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED3)
 #define _PAGE_PAT      (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
 #define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
@@ -99,6 +99,11 @@
 #define __PAGE_KERNEL_LARGE_NOCACHE    (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE)
 #define __PAGE_KERNEL_LARGE_EXEC       (__PAGE_KERNEL_EXEC | _PAGE_PSE)
 
+#define __PAGE_KERNEL_IO               (__PAGE_KERNEL | _PAGE_IOMAP)
+#define __PAGE_KERNEL_IO_NOCACHE       (__PAGE_KERNEL_NOCACHE | _PAGE_IOMAP)
+#define __PAGE_KERNEL_IO_UC_MINUS      (__PAGE_KERNEL_UC_MINUS | _PAGE_IOMAP)
+#define __PAGE_KERNEL_IO_WC            (__PAGE_KERNEL_WC | _PAGE_IOMAP)
+
 #define PAGE_KERNEL                    __pgprot(__PAGE_KERNEL)
 #define PAGE_KERNEL_RO                 __pgprot(__PAGE_KERNEL_RO)
 #define PAGE_KERNEL_EXEC               __pgprot(__PAGE_KERNEL_EXEC)
@@ -113,6 +118,11 @@
 #define PAGE_KERNEL_VSYSCALL           __pgprot(__PAGE_KERNEL_VSYSCALL)
 #define PAGE_KERNEL_VSYSCALL_NOCACHE   __pgprot(__PAGE_KERNEL_VSYSCALL_NOCACHE)
 
+#define PAGE_KERNEL_IO                 __pgprot(__PAGE_KERNEL_IO)
+#define PAGE_KERNEL_IO_NOCACHE         __pgprot(__PAGE_KERNEL_IO_NOCACHE)
+#define PAGE_KERNEL_IO_UC_MINUS                __pgprot(__PAGE_KERNEL_IO_UC_MINUS)
+#define PAGE_KERNEL_IO_WC              __pgprot(__PAGE_KERNEL_IO_WC)
+
 /*         xwr */
 #define __P000 PAGE_NONE
 #define __P001 PAGE_READONLY
@@ -138,8 +148,13 @@
 #ifdef CONFIG_X86_64
 #define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC
 #else
+/*
+ * For PDE_IDENT_ATTR include USER bit. As the PDE and PTE protection
+ * bits are combined, this will alow user to access the high address mapped
+ * VDSO in the presence of CONFIG_COMPAT_VDSO
+ */
 #define PTE_IDENT_ATTR  0x003          /* PRESENT+RW */
-#define PDE_IDENT_ATTR  0x063          /* PRESENT+RW+DIRTY+ACCESSED */
+#define PDE_IDENT_ATTR  0x067          /* PRESENT+RW+USER+DIRTY+ACCESSED */
 #define PGD_IDENT_ATTR  0x001          /* PRESENT (no other attributes) */
 #endif
 
@@ -196,9 +211,16 @@ static inline int pte_exec(pte_t pte)
 
 static inline int pte_special(pte_t pte)
 {
-       return pte_val(pte) & _PAGE_SPECIAL;
+       return pte_flags(pte) & _PAGE_SPECIAL;
 }
 
+static inline unsigned long pte_pfn(pte_t pte)
+{
+       return (pte_val(pte) & PTE_PFN_MASK) >> PAGE_SHIFT;
+}
+
+#define pte_page(pte)  pfn_to_page(pte_pfn(pte))
+
 static inline int pmd_large(pmd_t pte)
 {
        return (pmd_val(pte) & (_PAGE_PSE | _PAGE_PRESENT)) ==
@@ -326,6 +348,9 @@ static inline void native_pagetable_setup_start(pgd_t *base) {}
 static inline void native_pagetable_setup_done(pgd_t *base) {}
 #endif
 
+struct seq_file;
+extern void arch_report_meminfo(struct seq_file *m);
+
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
 #else  /* !CONFIG_PARAVIRT */
@@ -534,4 +559,4 @@ static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
 #include <asm-generic/pgtable.h>
 #endif /* __ASSEMBLY__ */
 
-#endif /* _ASM_X86_PGTABLE_H */
+#endif /* ASM_X86__PGTABLE_H */