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1da177e4 LT |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 1999 by Kaz Kojima | |
7 | * | |
8 | * Defitions for the address spaces of the SH CPUs. | |
9 | */ | |
10 | #ifndef __ASM_SH_ADDRSPACE_H | |
11 | #define __ASM_SH_ADDRSPACE_H | |
12 | #ifdef __KERNEL__ | |
13 | ||
14 | #include <asm/cpu/addrspace.h> | |
15 | ||
16 | /* Memory segments (32bit Priviledged mode addresses) */ | |
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) | P1SEG)) | |
33 | #define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P2SEG)) | |
34 | #define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P3SEG)) | |
35 | #define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P4SEG)) | |
36 | ||
37 | #endif /* __KERNEL__ */ | |
38 | #endif /* __ASM_SH_ADDRSPACE_H */ |