Changeset d0485c6 in mainline for kernel/arch

Timestamp:

2006-12-01T22:10:40Z (19 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.

Location:

kernel/arch

Files:

• amd64/include/mm/page.h (modified) (1 diff)
• ia32/include/mm/page.h (modified) (1 diff)
• ia32xen/include/mm/page.h (modified) (1 diff)
• ia64/include/mm/page.h (modified) (2 diffs)
• mips32/include/mm/page.h (modified) (1 diff)
• ppc32/include/mm/page.h (modified) (1 diff)
• ppc64/include/mm/page.h (modified) (1 diff)
• sparc64/include/mm/page.h (modified) (1 diff)

kernel/arch/amd64/include/mm/page.h

@@ -52 +52 @@
 #define PAGE_WIDTH      FRAME_WIDTH
 #define PAGE_SIZE       FRAME_SIZE
+
+#define PAGE_COLOR_BITS 0                       /* dummy */
 
 #ifdef KERNEL

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

@@ -40 +40 @@
 #define PAGE_WIDTH      FRAME_WIDTH
 #define PAGE_SIZE       FRAME_SIZE
+
+#define PAGE_COLOR_BITS 0                       /* dummy */
 
 #ifdef KERNEL

kernel/arch/ia32xen/include/mm/page.h

@@ -41 +41 @@
 #define PAGE_SIZE       FRAME_SIZE
 
+#define PAGE_COLOR_BITS 0                       /* dummy */
+
 #ifdef KERNEL
 

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)
 

kernel/arch/mips32/include/mm/page.h

@@ -40 +40 @@
 #define PAGE_WIDTH      FRAME_WIDTH
 #define PAGE_SIZE       FRAME_SIZE
+
+#define PAGE_COLOR_BITS 0                       /* dummy */
 
 #ifndef __ASM__

kernel/arch/ppc32/include/mm/page.h

@@ -40 +40 @@
 #define PAGE_WIDTH      FRAME_WIDTH
 #define PAGE_SIZE       FRAME_SIZE
+
+#define PAGE_COLOR_BITS 0                       /* dummy */
 
 #ifdef KERNEL

kernel/arch/ppc64/include/mm/page.h

@@ -40 +40 @@
 #define PAGE_WIDTH      FRAME_WIDTH
 #define PAGE_SIZE       FRAME_SIZE
+
+#define PAGE_COLOR_BITS 0                       /* dummy */
 
 #ifdef KERNEL

kernel/arch/sparc64/include/mm/page.h

@@ -41 +41 @@
 #define PAGE_SIZE       FRAME_SIZE
 
+#define PAGE_COLOR_BITS 1                       /**< 14 - 13; 2^14 == 16K == alias boundary. */
+
 #ifdef KERNEL