Index: uspace/lib/c/generic/ddi.c
===================================================================
--- uspace/lib/c/generic/ddi.c	(revision 92c168040f5d9bf9ee5fb484770545a4555d29e0)
+++ uspace/lib/c/generic/ddi.c	(revision 041b026be4543502c8e624137bc93ee91fb5d06e)
@@ -76,5 +76,5 @@
  *
  */
-int physmem_map(void *phys, size_t pages, unsigned int flags, void **virt)
+int physmem_map(uintptr_t phys, size_t pages, unsigned int flags, void **virt)
 {
 	return __SYSCALL5(SYS_PHYSMEM_MAP, (sysarg_t) phys,
@@ -83,5 +83,5 @@
 
 int dmamem_map(void *virt, size_t size, unsigned int map_flags,
-    unsigned int flags, void **phys)
+    unsigned int flags, uintptr_t *phys)
 {
 	return (int) __SYSCALL6(SYS_DMAMEM_MAP, (sysarg_t) size,
@@ -90,7 +90,9 @@
 }
 
-int dmamem_map_anonymous(size_t size, unsigned int map_flags,
-    unsigned int flags, void **phys, void **virt)
-{
+int dmamem_map_anonymous(size_t size, uintptr_t constraint,
+    unsigned int map_flags, unsigned int flags, uintptr_t *phys, void **virt)
+{
+	*phys = constraint;
+	
 	return (int) __SYSCALL6(SYS_DMAMEM_MAP, (sysarg_t) size,
 	    (sysarg_t) map_flags, (sysarg_t) flags | DMAMEM_FLAGS_ANONYMOUS,
@@ -158,8 +160,8 @@
 	if (!virt)
 		return EINVAL;
-
-	void *phys_frame =
-	    (void *) ALIGN_DOWN((uintptr_t) pio_addr, PAGE_SIZE);
-	size_t offset = pio_addr - phys_frame;
+	
+	uintptr_t phys_frame =
+	    ALIGN_DOWN((uintptr_t) pio_addr, PAGE_SIZE);
+	size_t offset = (uintptr_t) pio_addr - phys_frame;
 	size_t pages = SIZE2PAGES(offset + size);
 	
Index: uspace/lib/c/generic/time.c
===================================================================
--- uspace/lib/c/generic/time.c	(revision 92c168040f5d9bf9ee5fb484770545a4555d29e0)
+++ uspace/lib/c/generic/time.c	(revision 041b026be4543502c8e624137bc93ee91fb5d06e)
@@ -556,6 +556,6 @@
 		
 		void *addr;
-		rc = physmem_map((void *) faddr, 1,
-		    AS_AREA_READ | AS_AREA_CACHEABLE, &addr);
+		rc = physmem_map(faddr, 1, AS_AREA_READ | AS_AREA_CACHEABLE,
+		    &addr);
 		if (rc != EOK) {
 			as_area_destroy(addr);