Merge tag 'for_v4.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

[sfrench/cifs-2.6.git] / arch / powerpc / include / asm / nohash / 64 / pgtable.h

diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index 7cd6809f4d332321e5f7eb806693e94fd5915b48..e77ed97616327e2d68b51e9d09a1c5664b8b1b8e 100644 (file)
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
@@ -89,11 +89,47 @@
  * Include the PTE bits definitions
  */
 #include <asm/nohash/pte-book3e.h>
-#include <asm/pte-common.h>
+
+#define _PAGE_SAO      0
+
+#define PTE_RPN_MASK   (~((1UL << PTE_RPN_SHIFT) - 1))
+
+/*
+ * _PAGE_CHG_MASK masks of bits that are to be preserved across
+ * pgprot changes.
+ */
+#define _PAGE_CHG_MASK (PTE_RPN_MASK | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_SPECIAL)
+
+#define H_PAGE_4K_PFN 0
 
 #ifndef __ASSEMBLY__
 /* pte_clear moved to later in this file */
 
+static inline pte_t pte_mkwrite(pte_t pte)
+{
+       return __pte(pte_val(pte) | _PAGE_RW);
+}
+
+static inline pte_t pte_mkdirty(pte_t pte)
+{
+       return __pte(pte_val(pte) | _PAGE_DIRTY);
+}
+
+static inline pte_t pte_mkyoung(pte_t pte)
+{
+       return __pte(pte_val(pte) | _PAGE_ACCESSED);
+}
+
+static inline pte_t pte_wrprotect(pte_t pte)
+{
+       return __pte(pte_val(pte) & ~_PAGE_RW);
+}
+
+static inline pte_t pte_mkexec(pte_t pte)
+{
+       return __pte(pte_val(pte) | _PAGE_EXEC);
+}
+
 #define PMD_BAD_BITS           (PTE_TABLE_SIZE-1)
 #define PUD_BAD_BITS           (PMD_TABLE_SIZE-1)
 
@@ -239,6 +275,7 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
        pte_update(mm, addr, ptep, _PAGE_RW, 0, 0);
 }
 
+#define __HAVE_ARCH_HUGE_PTEP_SET_WRPROTECT
 static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
                                           unsigned long addr, pte_t *ptep)
 {
@@ -313,9 +350,7 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
 #define MAX_SWAPFILES_CHECK() do { \
        BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > SWP_TYPE_BITS); \
        } while (0)
-/*
- * on pte we don't need handle RADIX_TREE_EXCEPTIONAL_SHIFT;
- */
+
 #define SWP_TYPE_BITS 5
 #define __swp_type(x)          (((x).val >> _PAGE_BIT_SWAP_TYPE) \
                                & ((1UL << SWP_TYPE_BITS) - 1))
@@ -327,8 +362,7 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma,
 #define __pte_to_swp_entry(pte)                ((swp_entry_t) { pte_val((pte)) })
 #define __swp_entry_to_pte(x)          __pte((x).val)
 
-extern int map_kernel_page(unsigned long ea, unsigned long pa,
-                          unsigned long flags);
+int map_kernel_page(unsigned long ea, unsigned long pa, pgprot_t prot);
 extern int __meminit vmemmap_create_mapping(unsigned long start,
                                            unsigned long page_size,
                                            unsigned long phys);