File: /usr/src/linux/include/asm-arm/arch-shark/memory.h

1     /*
2      * linux/include/asm-arm/arch-shark/memory.h
3      *
4      * by Alexander Schulz <aschulz@netwinder.org>
5      *
6      * derived from:
7      * linux/include/asm-arm/arch-ebsa110/memory.h
8      * Copyright (c) 1996-1999 Russell King.
9      */
10     #ifndef __ASM_ARCH_MEMORY_H
11     #define __ASM_ARCH_MEMORY_H
12     
13     /*
14      * Task size: 3GB
15      */
16     #define TASK_SIZE	(0xc0000000UL)
17     #define TASK_SIZE_26	(0x04000000UL)
18     
19     /*
20      * This decides where the kernel will search for a free chunk of vm
21      * space during mmap's.
22      */
23     #define TASK_UNMAPPED_BASE (TASK_SIZE / 3)
24     
25     /*
26      * Page offset: = 3GB
27      */
28     #define PAGE_OFFSET	(0xC0000000UL)
29     #define PHYS_OFFSET     (0x08000000UL)
30     
31     #define __virt_to_phys__is_a_macro
32     #define __phys_to_virt__is_a_macro
33     #define __virt_to_phys(vpage) (vpage - PAGE_OFFSET + PHYS_OFFSET)
34     #define __phys_to_virt(ppage) (ppage - PHYS_OFFSET + PAGE_OFFSET)
35     
36     #define __virt_to_bus__is_a_macro
37     #define __virt_to_bus(x)	__virt_to_phys(x)
38     #define __bus_to_virt__is_a_macro
39     #define __bus_to_virt(x)	__phys_to_virt(x)
40     
41     #define PHYS_TO_NID(addr)	(0)
42     
43     #endif
44