| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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) 2001 by Hiroyuki Kondo |
| 7 | * |
| 8 | * Defitions for the address spaces of the M32R CPUs. |
| 9 | */ |
| 10 | #ifndef __ASM_M32R_ADDRSPACE_H |
| 11 | #define __ASM_M32R_ADDRSPACE_H |
| 12 | |
| 13 | /* |
| 14 | * Memory segments (32bit kernel mode addresses) |
| 15 | */ |
| 16 | #define KUSEG 0x00000000 |
| 17 | #define KSEG0 0x80000000 |
| 18 | #define KSEG1 0xa0000000 |
| 19 | #define KSEG2 0xc0000000 |
| 20 | #define KSEG3 0xe0000000 |
| 21 | |
| 22 | #define K0BASE KSEG0 |
| 23 | |
| 24 | /* |
| 25 | * Returns the kernel segment base of a given address |
| 26 | */ |
| 27 | #ifndef __ASSEMBLY__ |
| 28 | #define KSEGX(a) (((unsigned long)(a)) & 0xe0000000) |
| 29 | #else |
| 30 | #define KSEGX(a) ((a) & 0xe0000000) |
| 31 | #endif |
| 32 | |
| 33 | /* |
| 34 | * Returns the physical address of a KSEG0/KSEG1 address |
| 35 | */ |
| 36 | #ifndef __ASSEMBLY__ |
| 37 | #define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff) |
| 38 | #else |
| 39 | #define PHYSADDR(a) ((a) & 0x1fffffff) |
| 40 | #endif |
| 41 | |
| 42 | /* |
| 43 | * Map an address to a certain kernel segment |
| 44 | */ |
| 45 | #ifndef __ASSEMBLY__ |
| 46 | #define KSEG0ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG0)) |
| 47 | #define KSEG1ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG1)) |
| 48 | #define KSEG2ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG2)) |
| 49 | #define KSEG3ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG3)) |
| 50 | #else |
| 51 | #define KSEG0ADDR(a) (((a) & 0x1fffffff) | KSEG0) |
| 52 | #define KSEG1ADDR(a) (((a) & 0x1fffffff) | KSEG1) |
| 53 | #define KSEG2ADDR(a) (((a) & 0x1fffffff) | KSEG2) |
| 54 | #define KSEG3ADDR(a) (((a) & 0x1fffffff) | KSEG3) |
| 55 | #endif |
| 56 | |
| 57 | #endif /* __ASM_M32R_ADDRSPACE_H */ |