Changeset 8442d10 in mainline for uspace/lib/c/include/ddi.h

Timestamp:

2013-09-09T21:48:12Z (11 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

c67dbd6

Parents:

2e2c18a1

Message:

improve the API of physmem_map(), dmamem_map() and dmamem_map_anonymous()
the "constraint" argument of dmamem_map_anonymous() should be used to specify bits disallowed in the physical frame address

File:

• uspace/lib/c/include/ddi.h (modified) (1 diff)

uspace/lib/c/include/ddi.h

@@ -42 +42 @@
 #include <task.h>
 
+#define DMAMEM_16MiB  ((uintptr_t) UINT64_C(0xffffffffff000000))
+#define DMAMEM_4GiB   ((uintptr_t) UINT64_C(0xffffffff00000000))
+
 extern int device_assign_devno(void);
 
-extern int physmem_map(void *, size_t, unsigned int, void **);
+extern int physmem_map(uintptr_t, size_t, unsigned int, void **);
 
-extern int dmamem_map(void *, size_t, unsigned int, unsigned int, void **);
-extern int dmamem_map_anonymous(size_t, unsigned int, unsigned int, void **,
-    void **);
+extern int dmamem_map(void *, size_t, unsigned int, unsigned int, uintptr_t *);
+extern int dmamem_map_anonymous(size_t, uintptr_t, unsigned int, unsigned int,
+    uintptr_t *, void **);
 extern int dmamem_unmap(void *, size_t);
 extern int dmamem_unmap_anonymous(void *);