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new 56286a72c6 PAGESIZE and PAGEMASK seems as common macro
56286a72c6 is described below
commit 56286a72c68f5f71f806e7af461d865fe96d3920
Author: Stanley <[email protected]>
AuthorDate: Sun Sep 10 14:35:30 2023 +0800
PAGESIZE and PAGEMASK seems as common macro
---
include/nuttx/page.h | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/include/nuttx/page.h b/include/nuttx/page.h
index 05a9980ac0..2971e14fb6 100644
--- a/include/nuttx/page.h
+++ b/include/nuttx/page.h
@@ -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)
