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Diffstat (limited to 'arch/x86/include/asm/pgtable-3level.h')
-rw-r--r--arch/x86/include/asm/pgtable-3level.h52
1 files changed, 0 insertions, 52 deletions
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index 447da43cddb..177b0165ea0 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -18,21 +18,6 @@
18 printk("%s:%d: bad pgd %p(%016Lx).\n", \ 18 printk("%s:%d: bad pgd %p(%016Lx).\n", \
19 __FILE__, __LINE__, &(e), pgd_val(e)) 19 __FILE__, __LINE__, &(e), pgd_val(e))
20 20
21static inline int pud_none(pud_t pud)
22{
23 return pud_val(pud) == 0;
24}
25
26static inline int pud_bad(pud_t pud)
27{
28 return (pud_val(pud) & ~(PTE_PFN_MASK | _KERNPG_TABLE | _PAGE_USER)) != 0;
29}
30
31static inline int pud_present(pud_t pud)
32{
33 return pud_val(pud) & _PAGE_PRESENT;
34}
35
36/* Rules for using set_pte: the pte being assigned *must* be 21/* Rules for using set_pte: the pte being assigned *must* be
37 * either not present or in a state where the hardware will 22 * either not present or in a state where the hardware will
38 * not attempt to update the pte. In places where this is 23 * not attempt to update the pte. In places where this is
@@ -46,23 +31,6 @@ static inline void native_set_pte(pte_t *ptep, pte_t pte)
46 ptep->pte_low = pte.pte_low; 31 ptep->pte_low = pte.pte_low;
47} 32}
48 33
49/*
50 * Since this is only called on user PTEs, and the page fault handler
51 * must handle the already racy situation of simultaneous page faults,
52 * we are justified in merely clearing the PTE present bit, followed
53 * by a set. The ordering here is important.
54 */
55static inline void native_set_pte_present(struct mm_struct *mm,
56 unsigned long addr,
57 pte_t *ptep, pte_t pte)
58{
59 ptep->pte_low = 0;
60 smp_wmb();
61 ptep->pte_high = pte.pte_high;
62 smp_wmb();
63 ptep->pte_low = pte.pte_low;
64}
65
66static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) 34static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
67{ 35{
68 set_64bit((unsigned long long *)(ptep), native_pte_val(pte)); 36 set_64bit((unsigned long long *)(ptep), native_pte_val(pte));
@@ -120,15 +88,6 @@ static inline void pud_clear(pud_t *pudp)
120 write_cr3(pgd); 88 write_cr3(pgd);
121} 89}
122 90
123#define pud_page(pud) pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
124
125#define pud_page_vaddr(pud) ((unsigned long) __va(pud_val(pud) & PTE_PFN_MASK))
126
127
128/* Find an entry in the second-level page table.. */
129#define pmd_offset(pud, address) ((pmd_t *)pud_page_vaddr(*(pud)) + \
130 pmd_index(address))
131
132#ifdef CONFIG_SMP 91#ifdef CONFIG_SMP
133static inline pte_t native_ptep_get_and_clear(pte_t *ptep) 92static inline pte_t native_ptep_get_and_clear(pte_t *ptep)
134{ 93{
@@ -145,17 +104,6 @@ static inline pte_t native_ptep_get_and_clear(pte_t *ptep)
145#define native_ptep_get_and_clear(xp) native_local_ptep_get_and_clear(xp) 104#define native_ptep_get_and_clear(xp) native_local_ptep_get_and_clear(xp)
146#endif 105#endif
147 106
148#define __HAVE_ARCH_PTE_SAME
149static inline int pte_same(pte_t a, pte_t b)
150{
151 return a.pte_low == b.pte_low && a.pte_high == b.pte_high;
152}
153
154static inline int pte_none(pte_t pte)
155{
156 return !pte.pte_low && !pte.pte_high;
157}
158
159/* 107/*
160 * Bits 0, 6 and 7 are taken in the low part of the pte, 108 * Bits 0, 6 and 7 are taken in the low part of the pte,
161 * put the 32 bits of offset into the high part. 109 * put the 32 bits of offset into the high part.