pmap enter fixes for I/O mapping.

diff --git a/sys/arch/arc/include/pte.h b/sys/arch/arc/include/pte.h
index 5ef6c62..6e2fdab 100644 (file)
--- a/sys/arch/arc/include/pte.h
+++ b/sys/arch/arc/include/pte.h
@@ -1,4 +1,4 @@
-/*      $OpenBSD: pte.h,v 1.2 1996/09/04 21:18:24 pefo Exp $   */
+/*      $OpenBSD: pte.h,v 1.3 1997/01/22 22:41:15 pefo Exp $   */
 
 /*
  * Copyright (c) 1988 University of Utah.
@@ -105,6 +105,7 @@ typedef union pt_entry {
 #define        PG_IOPAGE       (PG_G | PG_V | PG_M | PG_UNCACHED)
 #define        PG_FRAME        0x3fffffc0
 #define PG_SHIFT       6
+#define pfn_is_ext(x) ((x) & 0x3c000000)
 #define vad_to_pfn(x) (((unsigned)(x) >> PG_SHIFT) & PG_FRAME)
 #define vad_to_pfn64(x) (((quad_t)(x) >> PG_SHIFT) & PG_FRAME)
 #define pfn_to_vad(x) (((x) & PG_FRAME) << PG_SHIFT)