Index: kernel/generic/include/mm/as.h
===================================================================
--- kernel/generic/include/mm/as.h	(revision 797d4d193fb13a383f79845727e8ac92d9d83ae6)
+++ kernel/generic/include/mm/as.h	(revision ac8b0966d9cb53b8afc2aaec1a1b5cd4863f32f0)
@@ -250,4 +250,7 @@
 extern int as_area_change_flags(as_t *, unsigned int, uintptr_t);
 
+//TODO REMOVE!
+extern as_area_t * find_locked_area(as_t *as, uintptr_t va);
+
 extern unsigned int as_area_get_flags(as_area_t *);
 extern bool as_area_check_access(as_area_t *, pf_access_t);
Index: kernel/generic/include/mm/frame.h
===================================================================
--- kernel/generic/include/mm/frame.h	(revision 797d4d193fb13a383f79845727e8ac92d9d83ae6)
+++ kernel/generic/include/mm/frame.h	(revision ac8b0966d9cb53b8afc2aaec1a1b5cd4863f32f0)
@@ -63,4 +63,6 @@
 /** Allocate a frame which cannot be identity-mapped. */
 #define FRAME_HIGHMEM	  0x20
+/** Allocate a frame which needs to be from DMA zone. */
+#define FRAME_DMA         0x40
 
 typedef uint8_t zone_flags_t;
@@ -77,4 +79,6 @@
 /** Zone contains memory that cannot be identity-mapped */
 #define ZONE_HIGHMEM	0x10
+/** Zone contains memory suitable for old ISA DMA */
+#define ZONE_DMA        0x20
 
 /** Mask of zone bits that must be matched exactly. */
@@ -82,8 +86,9 @@
 
 #define FRAME_TO_ZONE_FLAGS(ff)	\
-	((((ff) & FRAME_LOWMEM) ? ZONE_LOWMEM : \
+	((((ff) & FRAME_DMA) ? ZONE_DMA : \
+	    (((ff) & FRAME_LOWMEM) ? ZONE_LOWMEM : \
 	    (((ff) & FRAME_HIGHMEM) ? ZONE_HIGHMEM : \
-	    ZONE_LOWMEM /* | ZONE_HIGHMEM */)) | \
-	    ZONE_AVAILABLE) 
+	    ZONE_LOWMEM /* | ZONE_HIGHMEM */))) | \
+	    ZONE_AVAILABLE)
 
 #define ZONE_FLAGS_MATCH(zf, f) \
Index: kernel/generic/include/time/clock.h
===================================================================
--- kernel/generic/include/time/clock.h	(revision 797d4d193fb13a383f79845727e8ac92d9d83ae6)
+++ kernel/generic/include/time/clock.h	(revision ac8b0966d9cb53b8afc2aaec1a1b5cd4863f32f0)
@@ -38,5 +38,5 @@
 #include <typedefs.h>
 
-#define HZ  100
+#define HZ  1000
 
 /** Uptime structure */