Don't include linux/config.h from anywhere else in include/

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

diff --git a/include/asm-powerpc/pgtable.h b/include/asm-powerpc/pgtable.h
index 0303f57..964e312 100644 (file)
--- a/include/asm-powerpc/pgtable.h
+++ b/include/asm-powerpc/pgtable.h
@@ -1,5 +1,6 @@
 #ifndef _ASM_POWERPC_PGTABLE_H
 #define _ASM_POWERPC_PGTABLE_H
+#ifdef __KERNEL__
 
 #ifndef CONFIG_PPC64
 #include <asm-ppc/pgtable.h>
@@ -11,7 +12,6 @@
  */
 
 #ifndef __ASSEMBLY__
-#include <linux/config.h>
 #include <linux/stddef.h>
 #include <asm/processor.h>             /* For TASK_SIZE */
 #include <asm/mmu.h>
@@ -57,6 +57,17 @@ struct mm_struct;
 #define IMALLOC_BASE   (PHBS_IO_BASE + 0x80000000ul)   /* Reserve 2 gigs for PHBs */
 #define IMALLOC_END    (VMALLOC_START + PGTABLE_RANGE)
 
+/*
+ * Region IDs
+ */
+#define REGION_SHIFT           60UL
+#define REGION_MASK            (0xfUL << REGION_SHIFT)
+#define REGION_ID(ea)          (((unsigned long)(ea)) >> REGION_SHIFT)
+
+#define VMALLOC_REGION_ID      (REGION_ID(VMALLOC_START))
+#define KERNEL_REGION_ID       (REGION_ID(PAGE_OFFSET))
+#define USER_REGION_ID         (0UL)
+
 /*
  * Common bits in a linux-style PTE.  These match the bits in the
  * (hardware-defined) PowerPC PTE as closely as possible. Additional
@@ -176,9 +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)
@@ -186,7 +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)
@@ -456,11 +472,6 @@ 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.
@@ -521,4 +532,5 @@ void pgtable_cache_init(void);
 #endif /* __ASSEMBLY__ */
 
 #endif /* CONFIG_PPC64 */
+#endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_PGTABLE_H */