Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[linux-2.6] / include / asm-avr32 / addrspace.h
1 /*
2  * Defitions for the address spaces of the AVR32 CPUs. Heavily based on
3  * include/asm-sh/addrspace.h
4  *
5  * Copyright (C) 2004-2006 Atmel Corporation
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  */
11 #ifndef __ASM_AVR32_ADDRSPACE_H
12 #define __ASM_AVR32_ADDRSPACE_H
13
14 #ifdef CONFIG_MMU
15
16 /* Memory segments when segmentation is enabled */
17 #define P0SEG           0x00000000
18 #define P1SEG           0x80000000
19 #define P2SEG           0xa0000000
20 #define P3SEG           0xc0000000
21 #define P4SEG           0xe0000000
22
23 /* Returns the privileged segment base of a given address */
24 #define PXSEG(a)        (((unsigned long)(a)) & 0xe0000000)
25
26 /* Returns the physical address of a PnSEG (n=1,2) address */
27 #define PHYSADDR(a)     (((unsigned long)(a)) & 0x1fffffff)
28
29 /*
30  * Map an address to a certain privileged segment
31  */
32 #define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
33                                       | P1SEG))
34 #define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
35                                       | P2SEG))
36 #define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
37                                       | P3SEG))
38 #define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
39                                       | P4SEG))
40
41 #endif /* CONFIG_MMU */
42
43 #endif /* __ASM_AVR32_ADDRSPACE_H */