1/*
2 *  linux/include/asm-arm/arch-arc/memory.h
3 *
4 *  Copyright (C) 1996-1999 Russell King.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * Changelog:
11 *  22-Nov-1996	RMK	Created
12 *  21-Mar-1999	RMK	Renamed to memory.h
13 *		RMK	Moved PAGE_OFFSET and TASK_SIZE here
14 */
15#ifndef __ASM_ARCH_MEMORY_H
16#define __ASM_ARCH_MEMORY_H
17
18/*
19 * User space: 26MB
20 */
21#define TASK_SIZE	(0x01a00000UL)
22#define TASK_SIZE_26	(0x01a00000UL)
23
24/*
25 * This decides where the kernel will search for a free chunk of vm
26 * space during mmap's.
27 */
28#define TASK_UNMAPPED_BASE (TASK_SIZE / 3)
29
30/*
31 * Page offset: 32MB
32 */
33#define PAGE_OFFSET	(0x02000000UL)
34#define PHYS_OFFSET	(0x02000000UL)
35
36#define __virt_to_phys__is_a_macro
37#define __virt_to_phys(vpage) vpage
38#define __phys_to_virt__is_a_macro
39#define __phys_to_virt(ppage) ppage
40
41/*
42 * Virtual view <-> DMA view memory address translations
43 * virt_to_bus: Used to translate the virtual address to an
44 *              address suitable to be passed to set_dma_addr
45 * bus_to_virt: Used to convert an address for DMA operations
46 *              to an address that the kernel can use.
47 */
48#define __virt_to_bus__is_a_macro
49#define __virt_to_bus(x)	(x)
50#define __bus_to_virt__is_a_macro
51#define __bus_to_virt(x)	(x)
52
53#define PHYS_TO_NID(addr)	(0)
54
55#endif
56