1 files changed, 12 insertions, 12 deletions

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 77b09d6fee23..2291de0258ed 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -25,8 +25,8 @@
  * Software defined PTE bits definition.
  */
 #define PTE_VALID               (_AT(pteval_t, 1) << 0)
-#define PTE_PROT_NONE           (_AT(pteval_t, 1) << 1) /* only when !PTE_VALID */
-#define PTE_FILE                (_AT(pteval_t, 1) << 2) /* only when !pte_present() */
+#define PTE_PROT_NONE           (_AT(pteval_t, 1) << 2) /* only when !PTE_VALID */
+#define PTE_FILE                (_AT(pteval_t, 1) << 3) /* only when !pte_present() */
 #define PTE_DIRTY               (_AT(pteval_t, 1) << 55)
 #define PTE_SPECIAL             (_AT(pteval_t, 1) << 56)
 
@@ -281,12 +281,12 @@ extern pgd_t idmap_pg_dir[PTRS_PER_PGD];
 
 /*
  * Encode and decode a swap entry:
- *      bits 0-1:       present (must be zero)
- *      bit  2:         PTE_FILE
- *      bits 3-8:       swap type
+ *      bits 0, 2:      present (must both be zero)
+ *      bit  3:         PTE_FILE
+ *      bits 4-8:       swap type
  *      bits 9-63:      swap offset
  */
-#define __SWP_TYPE_SHIFT        3
+#define __SWP_TYPE_SHIFT        4
 #define __SWP_TYPE_BITS         6
 #define __SWP_TYPE_MASK         ((1 << __SWP_TYPE_BITS) - 1)
 #define __SWP_OFFSET_SHIFT      (__SWP_TYPE_BITS + __SWP_TYPE_SHIFT)
@@ -306,15 +306,15 @@ extern pgd_t idmap_pg_dir[PTRS_PER_PGD];
 
 /*
  * Encode and decode a file entry:
- *      bits 0-1:       present (must be zero)
- *      bit  2:         PTE_FILE
- *      bits 3-63:      file offset / PAGE_SIZE
+ *      bits 0, 2:      present (must both be zero)
+ *      bit  3:         PTE_FILE
+ *      bits 4-63:      file offset / PAGE_SIZE
  */
 #define pte_file(pte)           (pte_val(pte) & PTE_FILE)
-#define pte_to_pgoff(x)         (pte_val(x) >> 3)
-#define pgoff_to_pte(x)         __pte(((x) << 3) | PTE_FILE)
+#define pte_to_pgoff(x)         (pte_val(x) >> 4)
+#define pgoff_to_pte(x)         __pte(((x) << 4) | PTE_FILE)
 
-#define PTE_FILE_MAX_BITS       61
+#define PTE_FILE_MAX_BITS       60
 
 extern int kern_addr_valid(unsigned long addr);