PAGESIZE and PAGEMASK seems as common macro

2026-05-23 23:28:29 +08:00 · 2023-09-10 14:35:30 +08:00
parent 83ac6c7c43
commit 56286a72c6
1 changed files with 5 additions and 4 deletions
@@ -48,17 +48,18 @@
 */

 #if CONFIG_PAGING_PAGESIZE == 1024
-#  define PAGESIZE                 1024
 #  define PAGESHIFT                10
-#  define PAGEMASK                 0x000003ff
 #elif CONFIG_PAGING_PAGESIZE == 4096
-#  define PAGESIZE                 4096
 #  define PAGESHIFT                12
-#  define PAGEMASK                 0x00000fff
 #else
 #  error "Need extended definitions for CONFIG_PAGING_PAGESIZE"
 #endif

+/* Common page macros */
+
+#  define PAGESIZE                 (1 << PAGESHIFT)
+#  define PAGEMASK                 (PAGESIZE - 1)
+
 /* Alignment macros */

 #define PG_ALIGNDOWN(addr)         ((addr) & ~PAGEMASK)