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-rw-r--r--include/asm-x86/pgtable-2level.h45
1 files changed, 18 insertions, 27 deletions
diff --git a/include/asm-x86/pgtable-2level.h b/include/asm-x86/pgtable-2level.h
index 84b03cf56a79..701404fab308 100644
--- a/include/asm-x86/pgtable-2level.h
+++ b/include/asm-x86/pgtable-2level.h
@@ -15,30 +15,31 @@ static inline void native_set_pte(pte_t *ptep , pte_t pte)
15{ 15{
16 *ptep = pte; 16 *ptep = pte;
17} 17}
18static inline void native_set_pte_at(struct mm_struct *mm, unsigned long addr, 18
19 pte_t *ptep , pte_t pte)
20{
21 native_set_pte(ptep, pte);
22}
23static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) 19static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
24{ 20{
25 *pmdp = pmd; 21 *pmdp = pmd;
26} 22}
27#ifndef CONFIG_PARAVIRT
28#define set_pte(pteptr, pteval) native_set_pte(pteptr, pteval)
29#define set_pte_at(mm,addr,ptep,pteval) native_set_pte_at(mm, addr, ptep, pteval)
30#define set_pmd(pmdptr, pmdval) native_set_pmd(pmdptr, pmdval)
31#endif
32 23
33#define set_pte_atomic(pteptr, pteval) set_pte(pteptr,pteval) 24static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
34#define set_pte_present(mm,addr,ptep,pteval) set_pte_at(mm,addr,ptep,pteval) 25{
26 native_set_pte(ptep, pte);
27}
35 28
36#define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0) 29static inline void native_set_pte_present(struct mm_struct *mm, unsigned long addr,
37#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) 30 pte_t *ptep, pte_t pte)
31{
32 native_set_pte(ptep, pte);
33}
34
35static inline void native_pmd_clear(pmd_t *pmdp)
36{
37 native_set_pmd(pmdp, __pmd(0));
38}
38 39
39static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *xp) 40static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *xp)
40{ 41{
41 *xp = __pte(0); 42 *xp = native_make_pte(0);
42} 43}
43 44
44#ifdef CONFIG_SMP 45#ifdef CONFIG_SMP
@@ -53,16 +54,6 @@ static inline pte_t native_ptep_get_and_clear(pte_t *xp)
53#define pte_page(x) pfn_to_page(pte_pfn(x)) 54#define pte_page(x) pfn_to_page(pte_pfn(x))
54#define pte_none(x) (!(x).pte_low) 55#define pte_none(x) (!(x).pte_low)
55#define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT) 56#define pte_pfn(x) (pte_val(x) >> PAGE_SHIFT)
56#define pfn_pte(pfn, prot) __pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
57#define pfn_pmd(pfn, prot) __pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
58
59/*
60 * All present pages are kernel-executable:
61 */
62static inline int pte_exec_kernel(pte_t pte)
63{
64 return 1;
65}
66 57
67/* 58/*
68 * Bits 0, 6 and 7 are taken, split up the 29 bits of offset 59 * Bits 0, 6 and 7 are taken, split up the 29 bits of offset
@@ -74,13 +65,13 @@ static inline int pte_exec_kernel(pte_t pte)
74 ((((pte).pte_low >> 1) & 0x1f ) + (((pte).pte_low >> 8) << 5 )) 65 ((((pte).pte_low >> 1) & 0x1f ) + (((pte).pte_low >> 8) << 5 ))
75 66
76#define pgoff_to_pte(off) \ 67#define pgoff_to_pte(off) \
77 ((pte_t) { (((off) & 0x1f) << 1) + (((off) >> 5) << 8) + _PAGE_FILE }) 68 ((pte_t) { .pte_low = (((off) & 0x1f) << 1) + (((off) >> 5) << 8) + _PAGE_FILE })
78 69
79/* Encode and de-code a swap entry */ 70/* Encode and de-code a swap entry */
80#define __swp_type(x) (((x).val >> 1) & 0x1f) 71#define __swp_type(x) (((x).val >> 1) & 0x1f)
81#define __swp_offset(x) ((x).val >> 8) 72#define __swp_offset(x) ((x).val >> 8)
82#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 1) | ((offset) << 8) }) 73#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 1) | ((offset) << 8) })
83#define __pte_to_swp_entry(pte) ((swp_entry_t) { (pte).pte_low }) 74#define __pte_to_swp_entry(pte) ((swp_entry_t) { (pte).pte_low })
84#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) 75#define __swp_entry_to_pte(x) ((pte_t) { .pte = (x).val })
85 76
86#endif /* _I386_PGTABLE_2LEVEL_H */ 77#endif /* _I386_PGTABLE_2LEVEL_H */