let drivers allocate memory at 64k physical boundary.

2009-02-12 12:26:08 +00:00
parent 6ac0338584
commit 59e972f074
8 changed files with 55 additions and 19 deletions
--- a/include/sys/mman.h
+++ b/include/sys/mman.h
@@ -19,6 +19,7 @@
 #define MAP_PREALLOC	0x0008		/* not on-demand */
 #define MAP_CONTIG	0x0010		/* contiguous in physical memory */
 #define MAP_LOWER16M	0x0020		/* physically below 16MB */
+#define MAP_ALIGN64K	0x0040		/* physically aligned at 64kB */

 /* mmap() error return */
 #define MAP_FAILED      ((void *)-1)