Changeset b0c2075 in mainline for kernel/arch/sparc64/src/mm/sun4v/as.c

Timestamp:

2013-09-10T17:48:57Z (11 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/sparc64/src/mm/sun4v/as.c (modified) (1 diff)

kernel/arch/sparc64/src/mm/sun4v/as.c

@@ -66 +66 @@
 {
 #ifdef CONFIG_TSB
-        uint8_t order = fnzb32(
-                (TSB_ENTRY_COUNT * sizeof(tsb_entry_t)) >> FRAME_WIDTH);
+        size_t frames =
+            SIZE2FRAMES(TSB_ENTRY_COUNT * sizeof(tsb_entry_t));
         
-        uintptr_t tsb = frame_alloc(order, flags, 0);
+        uintptr_t tsb = frame_alloc(frames, flags, 0);
         if (!tsb)
                 return -1;