blob: e5f59abdbedf4c47f8bdf55c91be7b31fe04e950 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/*
* linux/include/asm-arm/arch-rpc/memory.h
*
* Copyright (c) 1996,1997,1998 Russell King.
*
* Changelog:
* 20-Oct-1996 RMK Created
* 31-Dec-1997 RMK Fixed definitions to reduce warnings
* 11-Jan-1998 RMK Uninlined to reduce hits on cache
* 08-Feb-1998 RMK Added __virt_to_bus and __bus_to_virt
* 21-Mar-1999 RMK Renamed to memory.h
* RMK Added TASK_SIZE and PAGE_OFFSET
*/
#ifndef __ASM_ARCH_MMU_H
#define __ASM_ARCH_MMU_H
/*
* Task size: 3GB
*/
#define TASK_SIZE (0xc0000000UL)
#define TASK_SIZE_26 (0x04000000UL)
/*
* Page offset: 3GB
*/
#define PAGE_OFFSET (0xc0000000UL)
#define PHYS_OFFSET (0x10000000UL)
#define __virt_to_phys__is_a_macro
#define __virt_to_phys(vpage) ((vpage) - PAGE_OFFSET + PHYS_OFFSET)
#define __phys_to_virt__is_a_macro
#define __phys_to_virt(ppage) ((ppage) + PAGE_OFFSET - PHYS_OFFSET)
/*
* These are exactly the same on the RiscPC as the
* physical memory view.
*/
#define __virt_to_bus__is_a_macro
#define __virt_to_bus(x) __virt_to_phys(x)
#define __bus_to_virt__is_a_macro
#define __bus_to_virt(x) __phys_to_virt(x)
#endif
|
