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39 lines
1.2 KiB
39 lines
1.2 KiB
20 years ago
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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) 1999 by Kaz Kojima
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*
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* Defitions for the address spaces of the SH CPUs.
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*/
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#ifndef __ASM_SH_ADDRSPACE_H
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#define __ASM_SH_ADDRSPACE_H
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#ifdef __KERNEL__
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#include <asm/cpu/addrspace.h>
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/* Memory segments (32bit Priviledged mode addresses) */
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#define P0SEG 0x00000000
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#define P1SEG 0x80000000
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#define P2SEG 0xa0000000
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#define P3SEG 0xc0000000
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#define P4SEG 0xe0000000
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/* Returns the privileged segment base of a given address */
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#define PXSEG(a) (((unsigned long)(a)) & 0xe0000000)
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/* Returns the physical address of a PnSEG (n=1,2) address */
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#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff)
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/*
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* Map an address to a certain privileged segment
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*/
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#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P1SEG))
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#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P2SEG))
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#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P3SEG))
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#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) | P4SEG))
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#endif /* __KERNEL__ */
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#endif /* __ASM_SH_ADDRSPACE_H */
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