Changeset b0c2075 in mainline for kernel/arch/arm32/include/arch/mm/page.h

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/arm32/include/arch/mm/page.h (modified) (1 diff)

kernel/arch/arm32/include/arch/mm/page.h

@@ -73 +73 @@
 
 /* Page table sizes for each level. */
-#define PTL0_SIZE_ARCH          FOUR_FRAMES
-#define PTL1_SIZE_ARCH          0
-#define PTL2_SIZE_ARCH          0
-#define PTL3_SIZE_ARCH          ONE_FRAME
+#define PTL0_FRAMES_ARCH  4
+#define PTL1_FRAMES_ARCH  1
+#define PTL2_FRAMES_ARCH  1
+#define PTL3_FRAMES_ARCH  1
 
 /* Macros calculating indices into page tables for each level. */