Changeset 8cbf1c3 in mainline for kernel/generic/src/mm/frame.c

Timestamp:

2013-09-09T23:13:10Z (11 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

e2a0d76

Parents:

c67dbd6

Message:

prepare the public API of the frame allocator for the new backend
remove FRAME_KA (can be easily implemented explicitly)

File:

• kernel/generic/src/mm/frame.c (modified) (4 diffs)

kernel/generic/src/mm/frame.c

@@ -873 +873 @@
 
         return ADDR2PFN((uintptr_t) frame_alloc(order - FRAME_WIDTH,
-            FRAME_LOWMEM | FRAME_ATOMIC));
+            FRAME_LOWMEM | FRAME_ATOMIC, 0));
 }
 
@@ -1024 +1024 @@
  *
  */
-void *frame_alloc_generic(uint8_t order, frame_flags_t flags, size_t *pzone)
+uintptr_t frame_alloc_generic(uint8_t order, frame_flags_t flags,
+    uintptr_t constraint, size_t *pzone)
 {
         size_t size = ((size_t) 1) << order;
@@ -1071 +1072 @@
                         if (!(flags & FRAME_NO_RESERVE))
                                 reserve_free(size);
-                        return NULL;
+                        return 0;
                 }
                 
@@ -1126 +1127 @@
                 *pzone = znum;
         
-        if (flags & FRAME_KA)
-                return (void *) PA2KA(PFN2ADDR(pfn));
-        
-        return (void *) PFN2ADDR(pfn);
-}
-
-void *frame_alloc(uint8_t order, frame_flags_t flags)
-{
-        return frame_alloc_generic(order, flags, NULL);
-}
-
-void *frame_alloc_noreserve(uint8_t order, frame_flags_t flags)
-{
-        return frame_alloc_generic(order, flags | FRAME_NO_RESERVE, NULL);
+        return PFN2ADDR(pfn);
+}
+
+uintptr_t frame_alloc(uint8_t order, frame_flags_t flags, uintptr_t constraint)
+{
+        return frame_alloc_generic(order, flags, constraint, NULL);
+}
+
+uintptr_t frame_alloc_noreserve(uint8_t order, frame_flags_t flags,
+    uintptr_t constraint)
+{
+        return frame_alloc_generic(order, flags | FRAME_NO_RESERVE, constraint,
+            NULL);
 }