53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
/* @(#)cpu.h 1.1 94/10/31 SMI */
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/*
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* Copyright (c) 1986 by Sun Microsystems, Inc.
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*/
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#ifndef _sun4_cpu_h
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#define _sun4_cpu_h
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#ifndef LOCORE
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#include <mon/sunromvec.h>
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#endif !LOCORE
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#define CPU_ARCH 0xf0 /* mask for architecture bits */
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#define SUN4_ARCH 0x20 /* arch value for Sun 4 */
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#define CPU_MACH 0x0f /* mask for machine implementation */
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#define MACH_260 0x01
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#define MACH_110 0x02
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#define MACH_330 0x03
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#define MACH_470 0x04
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#define CPU_SUN4_260 (SUN4_ARCH + MACH_260)
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#define CPU_SUN4_110 (SUN4_ARCH + MACH_110)
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#define CPU_SUN4_330 (SUN4_ARCH + MACH_330)
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#define CPU_SUN4_470 (SUN4_ARCH + MACH_470)
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#if defined(KERNEL) && !defined(LOCORE)
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extern int cpu; /* machine type we are running on */
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extern int dvmasize; /* usable dvma size in pages */
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#ifdef VAC
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extern int vac; /* there is a virtual address cache */
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#else
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#define vac 0
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#endif VAC
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#ifdef IOC
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extern int ioc; /* there is an I/O cache */
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#else
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#define ioc 0
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#endif IOC
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#ifdef BCOPY_BUF
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extern int bcopy_buf; /* there is a bcopy buffer */
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#else
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#define bcopy_buf 0
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#endif BCOPY_BUF
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#endif KERNEL && !LOCORE
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#endif /*!_sun4_cpu_h*/
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