| /* | |
| * This file is subject to the terms and conditions of the GNU General Public | |
| * License. See the file "COPYING" in the main directory of this archive | |
| * for more details. | |
| * | |
| * Copyright (C) 1996 by Ralf Baechle | |
| * Copyright (C) 2000 by Maciej W. Rozycki | |
| * | |
| * Defitions for the address spaces of the MIPS CPUs. | |
| */ | |
| #ifndef __ASM_MIPS_ADDRSPACE_H | |
| #define __ASM_MIPS_ADDRSPACE_H | |
| /* | |
| * Memory segments (32bit kernel mode addresses) | |
| */ | |
| #define KUSEG 0x00000000 | |
| #define KSEG0 0x80000000 | |
| #define KSEG1 0xa0000000 | |
| #define KSEG2 0xc0000000 | |
| #define KSEG3 0xe0000000 | |
| #define K0BASE KSEG0 | |
| /* | |
| * Returns the kernel segment base of a given address | |
| */ | |
| #ifndef __ASSEMBLY__ | |
| #define KSEGX(a) (((unsigned long)(a)) & 0xe0000000) | |
| #else | |
| #define KSEGX(a) ((a) & 0xe0000000) | |
| #endif | |
| /* | |
| * Returns the physical address of a KSEG0/KSEG1 address | |
| */ | |
| #ifndef __ASSEMBLY__ | |
| #define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff) | |
| #else | |
| #define PHYSADDR(a) ((a) & 0x1fffffff) | |
| #endif | |
| /* | |
| * Returns the uncached address of a sdram address | |
| */ | |
| #ifndef __ASSEMBLY__ | |
| #if defined(CONFIG_AU1X00) || defined(CONFIG_TB0229) | |
| /* We use a 36 bit physical address map here and | |
| cannot access physical memory directly from core */ | |
| #define UNCACHED_SDRAM(a) (((unsigned long)(a)) | 0x20000000) | |
| #else /* !CONFIG_AU1X00 */ | |
| #define UNCACHED_SDRAM(a) KSEG1ADDR(a) | |
| #endif /* CONFIG_AU1X00 */ | |
| #endif /* __ASSEMBLY__ */ | |
| /* | |
| * Map an address to a certain kernel segment | |
| */ | |
| #ifndef __ASSEMBLY__ | |
| #define KSEG0ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG0)) | |
| #define KSEG1ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG1)) | |
| #define KSEG2ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG2)) | |
| #define KSEG3ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG3)) | |
| #else | |
| #define KSEG0ADDR(a) (((a) & 0x1fffffff) | KSEG0) | |
| #define KSEG1ADDR(a) (((a) & 0x1fffffff) | KSEG1) | |
| #define KSEG2ADDR(a) (((a) & 0x1fffffff) | KSEG2) | |
| #define KSEG3ADDR(a) (((a) & 0x1fffffff) | KSEG3) | |
| #endif | |
| /* | |
| * Memory segments (64bit kernel mode addresses) | |
| */ | |
| #define XKUSEG 0x0000000000000000 | |
| #define XKSSEG 0x4000000000000000 | |
| #define XKPHYS 0x8000000000000000 | |
| #define XKSEG 0xc000000000000000 | |
| #define CKSEG0 0xffffffff80000000 | |
| #define CKSEG1 0xffffffffa0000000 | |
| #define CKSSEG 0xffffffffc0000000 | |
| #define CKSEG3 0xffffffffe0000000 | |
| #endif /* __ASM_MIPS_ADDRSPACE_H */ |