x86: move pte types into pgtable*.h

pgtable*.h is intended for definitions relating to actual pagetables and their entries, so move all the definitions for (pte|pmd|pud|pgd)(val)?_t to the appropriate pgtable*.h headers. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
mariux64 · Feb 11, 2009 · 54321d9 · 54321d9
1 parent e2f5bda
commit 54321d9
Show file tree

Hide file tree

Showing 11 changed files with 215 additions and 207 deletions.
diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h
@@ -31,28 +31,6 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
 	alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
 #define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
 
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else  /* !CONFIG_PARAVIRT */
-
-#define pgd_val(x)	native_pgd_val(x)
-#define __pgd(x)	native_make_pgd(x)
-
-#ifndef __PAGETABLE_PUD_FOLDED
-#define pud_val(x)	native_pud_val(x)
-#define __pud(x)	native_make_pud(x)
-#endif
-
-#ifndef __PAGETABLE_PMD_FOLDED
-#define pmd_val(x)	native_pmd_val(x)
-#define __pmd(x)	native_make_pmd(x)
-#endif
-
-#define pte_val(x)	native_pte_val(x)
-#define __pte(x)	native_make_pte(x)
-
-#endif	/* CONFIG_PARAVIRT */
-
 #define __pa(x)		__phys_addr((unsigned long)(x))
 #define __pa_nodebug(x)	__phys_addr_nodebug((unsigned long)(x))
 /* __pa_symbol should be used for C visible symbols.

diff --git a/arch/x86/include/asm/page_32_types.h b/arch/x86/include/asm/page_32_types.h
@@ -43,36 +43,6 @@
 
 #ifndef __ASSEMBLY__
 
-#include <linux/types.h>
-
-#ifdef CONFIG_X86_PAE
-typedef u64	pteval_t;
-typedef u64	pmdval_t;
-typedef u64	pudval_t;
-typedef u64	pgdval_t;
-typedef u64	pgprotval_t;
-
-typedef union {
-	struct {
-		unsigned long pte_low, pte_high;
-	};
-	pteval_t pte;
-} pte_t;
-#else  /* !CONFIG_X86_PAE */
-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 union {
-	pteval_t pte;
-	pteval_t pte_low;
-} pte_t;
-#endif	/* CONFIG_X86_PAE */
-
-extern int nx_enabled;
-
 /*
  * This much address space is reserved for vmalloc() and iomap()
  * as well as fixmap mappings.

diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
@@ -71,17 +71,6 @@ 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 struct { pteval_t pte; } pte_t;
-
 #define vmemmap ((struct page *)VMEMMAP_START)
 
 extern unsigned long init_memory_mapping(unsigned long start,

diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
@@ -46,106 +46,15 @@
 
 #ifndef __ASSEMBLY__
 
-#include <linux/types.h>
-
-typedef struct { pgdval_t pgd; } pgd_t;
-typedef struct { pgprotval_t pgprot; } pgprot_t;
-
-static inline pgd_t native_make_pgd(pgdval_t val)
-{
-	return (pgd_t) { val };
-}
-
-static inline pgdval_t native_pgd_val(pgd_t pgd)
-{
-	return pgd.pgd;
-}
-
-static inline pgdval_t pgd_flags(pgd_t pgd)
-{
-	return native_pgd_val(pgd) & PTE_FLAGS_MASK;
-}
-
-#if PAGETABLE_LEVELS > 3
-typedef struct { pudval_t pud; } pud_t;
-
-static inline pud_t native_make_pud(pmdval_t val)
-{
-	return (pud_t) { val };
-}
-
-static inline pudval_t native_pud_val(pud_t pud)
-{
-	return pud.pud;
-}
-#else
-#include <asm-generic/pgtable-nopud.h>
-
-static inline pudval_t native_pud_val(pud_t pud)
-{
-	return native_pgd_val(pud.pgd);
-}
-#endif
-
-#if PAGETABLE_LEVELS > 2
-typedef struct { pmdval_t pmd; } pmd_t;
-
-static inline pmd_t native_make_pmd(pmdval_t val)
-{
-	return (pmd_t) { val };
-}
-
-static inline pmdval_t native_pmd_val(pmd_t pmd)
-{
-	return pmd.pmd;
-}
-#else
-#include <asm-generic/pgtable-nopmd.h>
-
-static inline pmdval_t native_pmd_val(pmd_t pmd)
-{
-	return native_pgd_val(pmd.pud.pgd);
-}
-#endif
-
-static inline pudval_t pud_flags(pud_t pud)
-{
-	return native_pud_val(pud) & PTE_FLAGS_MASK;
-}
-
-static inline pmdval_t pmd_flags(pmd_t pmd)
-{
-	return native_pmd_val(pmd) & PTE_FLAGS_MASK;
-}
-
-static inline pte_t native_make_pte(pteval_t val)
-{
-	return (pte_t) { .pte = val };
-}
-
-static inline pteval_t native_pte_val(pte_t pte)
-{
-	return pte.pte;
-}
-
-static inline pteval_t pte_flags(pte_t pte)
-{
-	return native_pte_val(pte) & PTE_FLAGS_MASK;
-}
-
-#define pgprot_val(x)	((x).pgprot)
-#define __pgprot(x)	((pgprot_t) { (x) } )
-
-
-typedef struct page *pgtable_t;
+struct pgprot;
 
 extern int page_is_ram(unsigned long pagenr);
 extern int pagerange_is_ram(unsigned long start, unsigned long end);
 extern int devmem_is_allowed(unsigned long pagenr);
 extern void map_devmem(unsigned long pfn, unsigned long size,
-		       pgprot_t vma_prot);
+		       struct pgprot vma_prot);
 extern void unmap_devmem(unsigned long pfn, unsigned long size,
-			 pgprot_t vma_prot);
+			 struct pgprot vma_prot);
 
 extern unsigned long max_low_pfn_mapped;
 extern unsigned long max_pfn_mapped;

diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
@@ -4,7 +4,7 @@
  * para-virtualization: those hooks are defined here. */
 
 #ifdef CONFIG_PARAVIRT
-#include <asm/page_types.h>
+#include <asm/pgtable_types.h>
 #include <asm/asm.h>
 
 /* Bitmask of what can be clobbered: usually at least eax. */

diff --git a/arch/x86/include/asm/pgtable-2level_types.h b/arch/x86/include/asm/pgtable-2level_types.h
@@ -1,6 +1,21 @@
 #ifndef _ASM_X86_PGTABLE_2LEVEL_DEFS_H
 #define _ASM_X86_PGTABLE_2LEVEL_DEFS_H
 
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+
+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 union {
+	pteval_t pte;
+	pteval_t pte_low;
+} pte_t;
+#endif	/* !__ASSEMBLY__ */
+
 #define SHARED_KERNEL_PMD	0
 
 /*

diff --git a/arch/x86/include/asm/pgtable-3level_types.h b/arch/x86/include/asm/pgtable-3level_types.h
@@ -1,6 +1,23 @@
 #ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
 #define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
 
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+
+typedef u64	pteval_t;
+typedef u64	pmdval_t;
+typedef u64	pudval_t;
+typedef u64	pgdval_t;
+typedef u64	pgprotval_t;
+
+typedef union {
+	struct {
+		unsigned long pte_low, pte_high;
+	};
+	pteval_t pte;
+} pte_t;
+#endif	/* !__ASSEMBLY__ */
+
 #ifdef CONFIG_PARAVIRT
 #define SHARED_KERNEL_PMD	(pv_info.shared_kernel_pmd)
 #else
@@ -25,4 +42,5 @@
  */
 #define PTRS_PER_PTE	512
 
+
 #endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
@@ -25,6 +25,66 @@ extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
 extern spinlock_t pgd_lock;
 extern struct list_head pgd_list;
 
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else  /* !CONFIG_PARAVIRT */
+#define set_pte(ptep, pte)		native_set_pte(ptep, pte)
+#define set_pte_at(mm, addr, ptep, pte)	native_set_pte_at(mm, addr, ptep, pte)
+
+#define set_pte_present(mm, addr, ptep, pte)				\
+	native_set_pte_present(mm, addr, ptep, pte)
+#define set_pte_atomic(ptep, pte)					\
+	native_set_pte_atomic(ptep, pte)
+
+#define set_pmd(pmdp, pmd)		native_set_pmd(pmdp, pmd)
+
+#ifndef __PAGETABLE_PUD_FOLDED
+#define set_pgd(pgdp, pgd)		native_set_pgd(pgdp, pgd)
+#define pgd_clear(pgd)			native_pgd_clear(pgd)
+#endif
+
+#ifndef set_pud
+# define set_pud(pudp, pud)		native_set_pud(pudp, pud)
+#endif
+
+#ifndef __PAGETABLE_PMD_FOLDED
+#define pud_clear(pud)			native_pud_clear(pud)
+#endif
+
+#define pte_clear(mm, addr, ptep)	native_pte_clear(mm, addr, ptep)
+#define pmd_clear(pmd)			native_pmd_clear(pmd)
+
+#define pte_update(mm, addr, ptep)              do { } while (0)
+#define pte_update_defer(mm, addr, ptep)        do { } while (0)
+
+static inline void __init paravirt_pagetable_setup_start(pgd_t *base)
+{
+	native_pagetable_setup_start(base);
+}
+
+static inline void __init paravirt_pagetable_setup_done(pgd_t *base)
+{
+	native_pagetable_setup_done(base);
+}
+
+#define pgd_val(x)	native_pgd_val(x)
+#define __pgd(x)	native_make_pgd(x)
+
+#ifndef __PAGETABLE_PUD_FOLDED
+#define pud_val(x)	native_pud_val(x)
+#define __pud(x)	native_make_pud(x)
+#endif
+
+#ifndef __PAGETABLE_PMD_FOLDED
+#define pmd_val(x)	native_pmd_val(x)
+#define __pmd(x)	native_make_pmd(x)
+#endif
+
+#define pte_val(x)	native_pte_val(x)
+#define __pte(x)	native_make_pte(x)
+
+#endif	/* CONFIG_PARAVIRT */
+
 /*
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
@@ -214,49 +274,6 @@ static inline int is_new_memtype_allowed(unsigned long flags,
 	return 1;
 }
 
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else  /* !CONFIG_PARAVIRT */
-#define set_pte(ptep, pte)		native_set_pte(ptep, pte)
-#define set_pte_at(mm, addr, ptep, pte)	native_set_pte_at(mm, addr, ptep, pte)
-
-#define set_pte_present(mm, addr, ptep, pte)				\
-	native_set_pte_present(mm, addr, ptep, pte)
-#define set_pte_atomic(ptep, pte)					\
-	native_set_pte_atomic(ptep, pte)
-
-#define set_pmd(pmdp, pmd)		native_set_pmd(pmdp, pmd)
-
-#ifndef __PAGETABLE_PUD_FOLDED
-#define set_pgd(pgdp, pgd)		native_set_pgd(pgdp, pgd)
-#define pgd_clear(pgd)			native_pgd_clear(pgd)
-#endif
-
-#ifndef set_pud
-# define set_pud(pudp, pud)		native_set_pud(pudp, pud)
-#endif
-
-#ifndef __PAGETABLE_PMD_FOLDED
-#define pud_clear(pud)			native_pud_clear(pud)
-#endif
-
-#define pte_clear(mm, addr, ptep)	native_pte_clear(mm, addr, ptep)
-#define pmd_clear(pmd)			native_pmd_clear(pmd)
-
-#define pte_update(mm, addr, ptep)              do { } while (0)
-#define pte_update_defer(mm, addr, ptep)        do { } while (0)
-
-static inline void __init paravirt_pagetable_setup_start(pgd_t *base)
-{
-	native_pagetable_setup_start(base);
-}
-
-static inline void __init paravirt_pagetable_setup_done(pgd_t *base)
-{
-	native_pagetable_setup_done(base);
-}
-#endif	/* CONFIG_PARAVIRT */
-
 #endif	/* __ASSEMBLY__ */
 
 #ifdef CONFIG_X86_32

diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
@@ -1,6 +1,22 @@
 #ifndef _ASM_X86_PGTABLE_64_DEFS_H
 #define _ASM_X86_PGTABLE_64_DEFS_H
 
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+
+/*
+ * 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 struct { pteval_t pte; } pte_t;
+
+#endif	/* !__ASSEMBLY__ */
+
 #define SHARED_KERNEL_PMD	0
 
 /*