Index: physmap.c
===================================================================
--- physmap.c	(revision 989)
+++ physmap.c	(working copy)
@@ -35,6 +35,25 @@
 
 unsigned short  segFS = 0;
 
+static void *realmem_map;
+
+void *map_first_meg(unsigned long phys_addr, size_t len)
+{
+	if (realmem_map)
+		return realmem_map + phys_addr;
+
+	realmem_map = valloc(1024 * 1024);
+
+	if (!realmem_map)
+		return NULL;
+
+	if (__djgpp_map_physical_memory(realmem_map, (1024 * 1024), 0)) {
+		return NULL;
+	}
+
+	return realmem_map + phys_addr;
+}
+
 void *sys_physmap(unsigned long phys_addr, size_t len)
 {
 	int ret;
@@ -46,6 +65,11 @@
 		__dpmi_set_segment_limit (segFS, 0xffffffff);
 	}
 
+	if ((phys_addr + len) < (1024 * 1024)) {
+	/* we need to use another method to map first 1MB */
+		return map_first_meg(phys_addr, len);
+	}
+
 	mi.address = phys_addr;
 	mi.size = len;
 	ret =  __dpmi_physical_address_mapping (&mi);
@@ -58,38 +82,14 @@
 }
 
 #define sys_physmap_rw_uncached	sys_physmap
+#define sys_physmap_ro_cached	sys_physmap
 
-#include <sys/movedata.h>
-#include <sys/segments.h>
-#include <go32.h>
-
-static void *realmem_cpy;
-
-void *sys_physmap_ro_cached(unsigned long phys_addr, size_t len)
-{
-	/* no support for not a 1MB of mem */
-	if ((phys_addr + len) > 1024*1024)
-		return NULL;
-
-	if (realmem_cpy)
-		return realmem_cpy + phys_addr;
-
-	realmem_cpy = valloc(1024*1024);
-
-	if (!realmem_cpy)
-		return NULL;
-
-	movedata(_dos_ds, 0, _my_ds(), (unsigned long) realmem_cpy, 1024*1024);
-	return realmem_cpy + phys_addr;
-}
-
-
 void physunmap(void *virt_addr, size_t len)
 {
 	__dpmi_meminfo mi;
 
-	/* we ignore unmaps for our cheat 1MB copy */
-	if ((virt_addr >= realmem_cpy) && ((virt_addr + len) <= (realmem_cpy + 1024*1024))) {
+	/* we ignore unmaps for our first 1MB */
+	if ((virt_addr >= realmem_map) && ((virt_addr + len) <= (realmem_map + (1024 * 1024)))) {
 		return;
 	}