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 */ 58