Changeset f72906c in mainline for kernel/arch/ia32/include/arch/mm/frame.h

Timestamp:

2013-09-12T18:09:51Z (11 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

69f5f19

Parents:

b11f6fb

Message:

prefer allocating physical frames from the so called low priority memory (< 16 MB on ia32 and amd64)
this saves the high priority memory for legacy DMA transfers, etc.

File:

• kernel/arch/ia32/include/arch/mm/frame.h (modified) (1 diff)

kernel/arch/ia32/include/arch/mm/frame.h

@@ -39 +39 @@
 #define FRAME_SIZE   (1 << FRAME_WIDTH)
 
+#define FRAME_LOWPRIO  0x1000
+
 #ifndef __ASM__