projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* $Id$ */ |
| 2 | /* | |
| 3 | * This file is subject to the terms and conditions of the GNU General Public | |
| 4 | * License. See the file "COPYING" in the main directory of this archive | |
| 5 | * for more details. | |
| 6 | * | |
| 7 | * Copyright (C) 2001 by Hiroyuki Kondo | |
| 8 | * | |
| 9 | * Defitions for the address spaces of the M32R CPUs. | |
| 10 | */ | |
| 11 | #ifndef __ASM_M32R_ADDRSPACE_H | |
| 12 | #define __ASM_M32R_ADDRSPACE_H | |
| 13 | ||
| 14 | /* | |
| 15 | * Memory segments (32bit kernel mode addresses) | |
| 16 | */ | |
| 17 | #define KUSEG 0x00000000 | |
| 18 | #define KSEG0 0x80000000 | |
| 19 | #define KSEG1 0xa0000000 | |
| 20 | #define KSEG2 0xc0000000 | |
| 21 | #define KSEG3 0xe0000000 | |
| 22 | ||
| 23 | #define K0BASE KSEG0 | |
| 24 | ||
| 25 | /* | |
| 26 | * Returns the kernel segment base of a given address | |
| 27 | */ | |
| 28 | #ifndef __ASSEMBLY__ | |
| 29 | #define KSEGX(a) (((unsigned long)(a)) & 0xe0000000) | |
| 30 | #else | |
| 31 | #define KSEGX(a) ((a) & 0xe0000000) | |
| 32 | #endif | |
| 33 | ||
| 34 | /* | |
| 35 | * Returns the physical address of a KSEG0/KSEG1 address | |
| 36 | */ | |
| 37 | #ifndef __ASSEMBLY__ | |
| 38 | #define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff) | |
| 39 | #else | |
| 40 | #define PHYSADDR(a) ((a) & 0x1fffffff) | |
| 41 | #endif | |
| 42 | ||
| 43 | /* | |
| 44 | * Map an address to a certain kernel segment | |
| 45 | */ | |
| 46 | #ifndef __ASSEMBLY__ | |
| 47 | #define KSEG0ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG0)) | |
| 48 | #define KSEG1ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG1)) | |
| 49 | #define KSEG2ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG2)) | |
| 50 | #define KSEG3ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG3)) | |
| 51 | #else | |
| 52 | #define KSEG0ADDR(a) (((a) & 0x1fffffff) | KSEG0) | |
| 53 | #define KSEG1ADDR(a) (((a) & 0x1fffffff) | KSEG1) | |
| 54 | #define KSEG2ADDR(a) (((a) & 0x1fffffff) | KSEG2) | |
| 55 | #define KSEG3ADDR(a) (((a) & 0x1fffffff) | KSEG3) | |
| 56 | #endif | |
| 57 | ||
| 58 | #endif /* __ASM_M32R_ADDRSPACE_H */ |