Changeset b0c2075 in mainline for kernel/arch/ia64/src

Timestamp:

2013-09-10T17:48:57Z (12 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

85147f3

Parents:

86733f3

Message:

new physical memory allocator supporting physical address constrains
the buddy allocator framework is retired and replaced by a two-level bitmap
the allocator can allocate an arbitrary number of frames, not only a power-of-two count

Caution: Change of semantics
The physical memory allocator no longer allocates naturally aligned blocks. If you require an aligned block, specify it as the constraint.

File:

• kernel/arch/ia64/src/mm/vhpt.c (modified) (2 diffs)

kernel/arch/ia64/src/mm/vhpt.c

@@ -42 +42 @@
 uintptr_t vhpt_set_up(void)
 {
-        vhpt_base = (vhpt_entry_t *) PA2KA(frame_alloc(VHPT_WIDTH - FRAME_WIDTH,
-            FRAME_ATOMIC, 0));
+        vhpt_base = (vhpt_entry_t *)
+            PA2KA(frame_alloc(SIZE2FRAMES(VHPT_SIZE), FRAME_ATOMIC, 0));
         if (!vhpt_base)
                 panic("Kernel configured with VHPT but no memory for table.");
@@ -83 +83 @@
 void vhpt_invalidate_all()
 {
-        memsetb(vhpt_base, 1 << VHPT_WIDTH, 0);
+        memsetb(vhpt_base, VHPT_SIZE, 0);
 }