Changes in kernel/generic/include/mm/mm.h [4b1c7c6f:9d58539] in mainline

File:

• kernel/generic/include/mm/mm.h (modified) (1 diff)

kernel/generic/include/mm/mm.h

@@ -37 +37 @@
 
 #define PAGE_CACHEABLE_SHIFT            0
-#define PAGE_NOT_PRESENT_SHIFT          1
+#define PAGE_NOT_CACHEABLE_SHIFT        PAGE_CACHEABLE_SHIFT
+#define PAGE_PRESENT_SHIFT              1
+#define PAGE_NOT_PRESENT_SHIFT          PAGE_PRESENT_SHIFT
 #define PAGE_USER_SHIFT                 2
+#define PAGE_KERNEL_SHIFT               PAGE_USER_SHIFT
+#define PAGE_READ_SHIFT                 3
 #define PAGE_WRITE_SHIFT                4
 #define PAGE_EXEC_SHIFT                 5
 #define PAGE_GLOBAL_SHIFT               6
 
+#define PAGE_NOT_CACHEABLE              (0 << PAGE_CACHEABLE_SHIFT)
 #define PAGE_CACHEABLE                  (1 << PAGE_CACHEABLE_SHIFT)
-#define PAGE_NOT_PRESENT                (1 << PAGE_NOT_PRESENT_SHIFT)
+
+#define PAGE_PRESENT                    (0 << PAGE_PRESENT_SHIFT)
+#define PAGE_NOT_PRESENT                (1 << PAGE_PRESENT_SHIFT)
+
 #define PAGE_USER                       (1 << PAGE_USER_SHIFT)
+#define PAGE_KERNEL                     (0 << PAGE_USER_SHIFT)
+
+#define PAGE_READ                       (1 << PAGE_READ_SHIFT)
 #define PAGE_WRITE                      (1 << PAGE_WRITE_SHIFT)
 #define PAGE_EXEC                       (1 << PAGE_EXEC_SHIFT)
+
 #define PAGE_GLOBAL                     (1 << PAGE_GLOBAL_SHIFT)