Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6

[linux-2.6] / include / asm-i386 / pgtable.h

diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h
index 7d398f493ddeedfc2d5e826d595028767ae64b76..c3b58d473a551b1e22413c610f8bd5e622ae487d 100644 (file)
--- a/include/asm-i386/pgtable.h
+++ b/include/asm-i386/pgtable.h
@@ -15,6 +15,7 @@
 #include <asm/processor.h>
 #include <asm/fixmap.h>
 #include <linux/threads.h>
+#include <asm/paravirt.h>
 
 #ifndef _I386_BITOPS_H
 #include <asm/bitops.h>
@@ -34,14 +35,14 @@ struct vm_area_struct;
 #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
 extern unsigned long empty_zero_page[1024];
 extern pgd_t swapper_pg_dir[1024];
-extern kmem_cache_t *pgd_cache;
-extern kmem_cache_t *pmd_cache;
+extern struct kmem_cache *pgd_cache;
+extern struct kmem_cache *pmd_cache;
 extern spinlock_t pgd_lock;
 extern struct page *pgd_list;
 
-void pmd_ctor(void *, kmem_cache_t *, unsigned long);
-void pgd_ctor(void *, kmem_cache_t *, unsigned long);
-void pgd_dtor(void *, kmem_cache_t *, unsigned long);
+void pmd_ctor(void *, struct kmem_cache *, unsigned long);
+void pgd_ctor(void *, struct kmem_cache *, unsigned long);
+void pgd_dtor(void *, struct kmem_cache *, unsigned long);
 void pgtable_cache_init(void);
 void paging_init(void);
 
@@ -246,6 +247,7 @@ static inline pte_t pte_mkhuge(pte_t pte)   { (pte).pte_low |= _PAGE_PSE; return p
 # include <asm/pgtable-2level.h>
 #endif
 
+#ifndef CONFIG_PARAVIRT
 /*
  * Rules for using pte_update - it must be called after any PTE update which
  * has not been done using the set_pte / clear_pte interfaces.  It is used by
@@ -261,7 +263,8 @@ static inline pte_t pte_mkhuge(pte_t pte)   { (pte).pte_low |= _PAGE_PSE; return p
  */
 #define pte_update(mm, addr, ptep)             do { } while (0)
 #define pte_update_defer(mm, addr, ptep)       do { } while (0)
-
+#define paravirt_map_pt_hook(slot, va, pfn)    do { } while (0)
+#endif
 
 /*
  * We only update the dirty/accessed state if we set
@@ -275,7 +278,7 @@ static inline pte_t pte_mkhuge(pte_t pte)   { (pte).pte_low |= _PAGE_PSE; return p
 do {                                                                   \
        if (dirty) {                                                    \
                (ptep)->pte_low = (entry).pte_low;                      \
-               pte_update_defer((vma)->vm_mm, (addr), (ptep));         \
+               pte_update_defer((vma)->vm_mm, (address), (ptep));      \
                flush_tlb_page(vma, address);                           \
        }                                                               \
 } while (0)
@@ -305,7 +308,7 @@ do {                                                                        \
        __dirty = pte_dirty(*(ptep));                                   \
        if (__dirty) {                                                  \
                clear_bit(_PAGE_BIT_DIRTY, &(ptep)->pte_low);           \
-               pte_update_defer((vma)->vm_mm, (addr), (ptep));         \
+               pte_update_defer((vma)->vm_mm, (address), (ptep));      \
                flush_tlb_page(vma, address);                           \
        }                                                               \
        __dirty;                                                        \
@@ -318,12 +321,20 @@ do {                                                                      \
        __young = pte_young(*(ptep));                                   \
        if (__young) {                                                  \
                clear_bit(_PAGE_BIT_ACCESSED, &(ptep)->pte_low);        \
-               pte_update_defer((vma)->vm_mm, (addr), (ptep));         \
+               pte_update_defer((vma)->vm_mm, (address), (ptep));      \
                flush_tlb_page(vma, address);                           \
        }                                                               \
        __young;                                                        \
 })
 
+#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
+static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+       pte_t pte = raw_ptep_get_and_clear(ptep);
+       pte_update(mm, addr, ptep);
+       return pte;
+}
+
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL
 static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long addr, pte_t *ptep, int full)
 {
@@ -459,10 +470,24 @@ extern pte_t *lookup_address(unsigned long address);
 #endif
 
 #if defined(CONFIG_HIGHPTE)
-#define pte_offset_map(dir, address) \
-       ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE0) + pte_index(address))
-#define pte_offset_map_nested(dir, address) \
-       ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE1) + pte_index(address))
+#define pte_offset_map(dir, address)                           \
+({                                                             \
+       pte_t *__ptep;                                          \
+       unsigned pfn = pmd_val(*(dir)) >> PAGE_SHIFT;           \
+       __ptep = (pte_t *)kmap_atomic(pfn_to_page(pfn),KM_PTE0);\
+       paravirt_map_pt_hook(KM_PTE0,__ptep, pfn);              \
+       __ptep = __ptep + pte_index(address);                   \
+       __ptep;                                                 \
+})
+#define pte_offset_map_nested(dir, address)                    \
+({                                                             \
+       pte_t *__ptep;                                          \
+       unsigned pfn = pmd_val(*(dir)) >> PAGE_SHIFT;           \
+       __ptep = (pte_t *)kmap_atomic(pfn_to_page(pfn),KM_PTE1);\
+       paravirt_map_pt_hook(KM_PTE1,__ptep, pfn);              \
+       __ptep = __ptep + pte_index(address);                   \
+       __ptep;                                                 \
+})
 #define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
 #define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
 #else