[POWERPC] Implement SLB shadow buffer

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

diff --git a/include/asm-powerpc/pgtable.h b/include/asm-powerpc/pgtable.h
index 185ee15..8dbf5ad 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)
 
 /*
@@ -188,9 +187,13 @@ 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)
@@ -198,7 +201,8 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t pgprot)
 
 #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)
@@ -408,12 +412,6 @@ 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;
 }