fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / asm-powerpc / pgtable.h

diff --git a/include/asm-powerpc/pgtable.h b/include/asm-powerpc/pgtable.h
index e389313..10f5274 100644 (file)
--- a/include/asm-powerpc/pgtable.h
+++ b/include/asm-powerpc/pgtable.h
@@ -12,7 +12,6 @@
  */
 
 #ifndef __ASSEMBLY__
-#include <linux/config.h>
 #include <linux/stddef.h>
 #include <asm/processor.h>             /* For TASK_SIZE */
 #include <asm/mmu.h>
@@ -47,8 +46,8 @@ struct mm_struct;
 /*
  * Define the address range of the vmalloc VM area.
  */
-#define VMALLOC_START (0xD000000000000000ul)
-#define VMALLOC_SIZE  (0x80000000000UL)
+#define VMALLOC_START ASM_CONST(0xD000000000000000)
+#define VMALLOC_SIZE  ASM_CONST(0x80000000000)
 #define VMALLOC_END   (VMALLOC_START + VMALLOC_SIZE)
 
 /*
@@ -188,20 +187,26 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t pgprot)
 #define pte_pfn(x)             ((unsigned long)((pte_val(x)>>PTE_RPN_SHIFT)))
 #define pte_page(x)            pfn_to_page(pte_pfn(x))
 
+#define PMD_BAD_BITS           (PTE_TABLE_SIZE-1)
+#define PUD_BAD_BITS           (PMD_TABLE_SIZE-1)
+
 #define pmd_set(pmdp, pmdval)  (pmd_val(*(pmdp)) = (pmdval))
 #define pmd_none(pmd)          (!pmd_val(pmd))
-#define        pmd_bad(pmd)            (pmd_val(pmd) == 0)
+#define        pmd_bad(pmd)            (!is_kernel_addr(pmd_val(pmd)) \
+                                || (pmd_val(pmd) & PMD_BAD_BITS))
 #define        pmd_present(pmd)        (pmd_val(pmd) != 0)
 #define        pmd_clear(pmdp)         (pmd_val(*(pmdp)) = 0)
-#define pmd_page_kernel(pmd)   (pmd_val(pmd) & ~PMD_MASKED_BITS)
-#define pmd_page(pmd)          virt_to_page(pmd_page_kernel(pmd))
+#define pmd_page_vaddr(pmd)    (pmd_val(pmd) & ~PMD_MASKED_BITS)
+#define pmd_page(pmd)          virt_to_page(pmd_page_vaddr(pmd))
 
 #define pud_set(pudp, pudval)  (pud_val(*(pudp)) = (pudval))
 #define pud_none(pud)          (!pud_val(pud))
-#define pud_bad(pud)           ((pud_val(pud)) == 0)
+#define        pud_bad(pud)            (!is_kernel_addr(pud_val(pud)) \
+                                || (pud_val(pud) & PUD_BAD_BITS))
 #define pud_present(pud)       (pud_val(pud) != 0)
 #define pud_clear(pudp)                (pud_val(*(pudp)) = 0)
-#define pud_page(pud)          (pud_val(pud) & ~PUD_MASKED_BITS)
+#define pud_page_vaddr(pud)    (pud_val(pud) & ~PUD_MASKED_BITS)
+#define pud_page(pud)          virt_to_page(pud_page_vaddr(pud))
 
 #define pgd_set(pgdp, pudp)    ({pgd_val(*(pgdp)) = (unsigned long)(pudp);})
 
@@ -215,10 +220,10 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t pgprot)
 #define pgd_offset(mm, address)         ((mm)->pgd + pgd_index(address))
 
 #define pmd_offset(pudp,addr) \
-  (((pmd_t *) pud_page(*(pudp))) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)))
+  (((pmd_t *) pud_page_vaddr(*(pudp))) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)))
 
 #define pte_offset_kernel(dir,addr) \
-  (((pte_t *) pmd_page_kernel(*(dir))) + (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
+  (((pte_t *) pmd_page_vaddr(*(dir))) + (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
 
 #define pte_offset_map(dir,addr)       pte_offset_kernel((dir), (addr))
 #define pte_offset_map_nested(dir,addr)        pte_offset_kernel((dir), (addr))
@@ -408,12 +413,6 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
                flush_tlb_pending();
        }
        pte = __pte(pte_val(pte) & ~_PAGE_HPTEFLAGS);
-
-#ifdef CONFIG_PPC_64K_PAGES
-       if (mmu_virtual_psize != MMU_PAGE_64K)
-               pte = __pte(pte_val(pte) | _PAGE_COMBO);
-#endif /* CONFIG_PPC_64K_PAGES */
-
        *ptep = pte;
 }
 
@@ -468,11 +467,6 @@ extern pgd_t swapper_pg_dir[];
 
 extern void paging_init(void);
 
-#ifdef CONFIG_HUGETLB_PAGE
-#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) \
-       free_pgd_range(tlb, addr, end, floor, ceiling)
-#endif
-
 /*
  * This gets called at the end of handling a page fault, when
  * the kernel has put a new PTE into the page table for the process.