Changeset d0485c6 in mainline for kernel/arch/ia64/include/mm/page.h

Timestamp:

2006-12-01T22:10:40Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

3d76996

Parents:

7bf7ef7

Message:

Introduce page colors. So far, only sparc64 uses correct page color bits. Other architectures have a dummy define
specifying zero bits for a page color.

There is a new check of page color in as_area_share(). Because of lack of support for this in the userspace, the
check has been #ifef'ed out.

File:

• kernel/arch/ia64/include/mm/page.h (modified) (2 diffs)

kernel/arch/ia64/include/mm/page.h

@@ -42 +42 @@
 #define PAGE_WIDTH      FRAME_WIDTH
 
+#define PAGE_COLOR_BITS 0                       /* dummy */
 
 #ifdef KERNEL
 
 /** Bit width of the TLB-locked portion of kernel address space. */
-#define KERNEL_PAGE_WIDTH       28      /* 256M */
+#define KERNEL_PAGE_WIDTH               28      /* 256M */
 
 #define PPN_SHIFT                       12
@@ -65 +66 @@
 #define PA2KA(x)        ((uintptr_t) (x+(VRN_KERNEL<<VRN_SHIFT)))
 
-#define VHPT_WIDTH                      20              /* 1M */
+#define VHPT_WIDTH                      20      /* 1M */
 #define VHPT_SIZE                       (1 << VHPT_WIDTH)