58 строки
1.7 KiB
C
58 строки
1.7 KiB
C
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2001 by Hiroyuki Kondo
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*
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* Defitions for the address spaces of the M32R CPUs.
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*/
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#ifndef __ASM_M32R_ADDRSPACE_H
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#define __ASM_M32R_ADDRSPACE_H
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/*
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* Memory segments (32bit kernel mode addresses)
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*/
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#define KUSEG 0x00000000
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#define KSEG0 0x80000000
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#define KSEG1 0xa0000000
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#define KSEG2 0xc0000000
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#define KSEG3 0xe0000000
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#define K0BASE KSEG0
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/*
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* Returns the kernel segment base of a given address
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*/
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#ifndef __ASSEMBLY__
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#define KSEGX(a) (((unsigned long)(a)) & 0xe0000000)
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#else
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#define KSEGX(a) ((a) & 0xe0000000)
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#endif
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/*
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* Returns the physical address of a KSEG0/KSEG1 address
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*/
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#ifndef __ASSEMBLY__
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#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff)
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#else
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#define PHYSADDR(a) ((a) & 0x1fffffff)
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#endif
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/*
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* Map an address to a certain kernel segment
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*/
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#ifndef __ASSEMBLY__
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#define KSEG0ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG0))
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#define KSEG1ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG1))
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#define KSEG2ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG2))
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#define KSEG3ADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | KSEG3))
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#else
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#define KSEG0ADDR(a) (((a) & 0x1fffffff) | KSEG0)
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#define KSEG1ADDR(a) (((a) & 0x1fffffff) | KSEG1)
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#define KSEG2ADDR(a) (((a) & 0x1fffffff) | KSEG2)
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#define KSEG3ADDR(a) (((a) & 0x1fffffff) | KSEG3)
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#endif
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#endif /* __ASM_M32R_ADDRSPACE_H */
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