| 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) 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 | |
| Alexey Dobriyan | 7f927fc | 2006-03-28 01:56:53 -0800 | [diff] [blame] | 16 | /* Memory segments (32bit Privileged mode addresses) */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 */ |