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- /*
- * Copyright (c) 1988 University of Utah.
- * Copyright (c) 1982, 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * the Systems Programming Group of the University of Utah Computer
- * Science Department.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- /*
- * Copyright (c) 1992, 1993 BCDL Labs. All rights reserved.
- * Allen Briggs, Chris Caputo, Michael Finch, Brad Grantham, Lawrence Kesteloot
-
- * Redistribution of this source code or any part thereof is permitted,
- * provided that the following conditions are met:
- * 1) Utilized source contains the copyright message above, this list
- * of conditions, and the following disclaimer.
- * 2) Binary objects containing compiled source reproduce the
- * copyright notice above on startup.
- *
- * CAVEAT: This source code is provided "as-is" by BCDL Labs, and any
- * warranties of ANY kind are disclaimed. We don't even claim that it
- * won't crash your hard disk. Basically, we want a little credit if
- * it works, but we don't want to get mail-bombed if it doesn't.
- */
-
- /*
- * from: Utah $Hdr: cpu.h 1.16 91/03/25$
- *
- * from: @(#)cpu.h 7.7 (Berkeley) 6/27/91
- * $Id: cpu.h,v 1.2 1993/11/29 00:37:59 briggs Exp $
- */
-
- /*
- ALICE
- BG -- Sat May 23 23:58:23 EDT 1992
- Exported defines and stuff unique to macII/68k.
- */
-
- /*
- * definitions of cpu-dependent requirements
- * referenced in generic code
- */
- #define COPY_SIGCODE /* copy sigcode above user stack in exec */
-
- /*
- * function vs. inline configuration;
- * these are defined to get generic functions
- * rather than inline or machine-dependent implementations
- */
- #define NEED_MINMAX /* need {,i,l,ul}{min,max} functions */
- #undef NEED_FFS /* don't need ffs function */
- #undef NEED_BCMP /* don't need bcmp function */
- #undef NEED_STRLEN /* don't need strlen function */
-
- /* ALICE BG -- Sun May 24 11:31:35 EDT 1992 -- what the hell do these things */
- /* do? */
- #define cpu_exec(p) /* nothing */
- #define cpu_wait(p) /* nothing */
-
- /*
- * Arguments to hardclock, softclock and gatherstats
- * encapsulate the previous machine state in an opaque
- * clockframe; for hp300, use just what the hardware
- * leaves on the stack.
- */
- /* ALICE 05/23/92 BG -- Oh, no. What does a VIA intleave on the stack? */
- /* ALICE 06/27/92 LK -- Make sure hardware clock routine does this: */
-
- typedef struct intrframe {
- int pc;
- int ps;
- } clockframe;
-
- #define CLKF_USERMODE(framep) (((framep)->ps & PSL_S) == 0)
- #define CLKF_BASEPRI(framep) (((framep)->ps & PSL_IPL7) == 0)
- #define CLKF_PC(framep) ((framep)->pc)
-
- /*
- * Preempt the current process if in interrupt from user mode,
- * or after the current trap/syscall if in system mode.
- */
- #define need_resched() { want_resched++; aston(); }
-
- /*
- * Give a profiling tick to the current process from the softclock
- * interrupt. Request an ast to send us through trap(),
- * marking the proc as needing a profiling tick.
- */
- #define profile_tick(p, framep) { (p)->p_flag |= SOWEUPC; aston(); }
-
- /*
- * Notify the current process (p) that it has a signal pending,
- * process as soon as possible.
- */
- #define signotify(p) aston()
-
- #define aston() (astpending++)
-
- int astpending; /* need to trap before returning to user mode */
- int want_resched; /* resched() was called */
-
- /* XXX why is this duplicated in mtpr.h? brad@fcr.com */
- /*
- * simulated software interrupt register
- */
- extern unsigned char ssir;
-
- #define SIR_NET 0x1
- #define SIR_CLOCK 0x2
- #define SIR_SERIAL 0x4
-
- #define siroff(x) ssir &= ~(x)
- #define setsoftnet() ssir |= SIR_NET
- #define setsoftclock() ssir |= SIR_CLOCK
- #define setsoftserial() ssir |= SIR_SERIAL
-
-
-
- /*
- * The rest of this should probably be moved to ../macII/macIIcpu.h,
- * although some of it could probably be put into generic 68k headers.
- */
-
- /* values for machineid */
- /* BARF MF - some values from the thinkc gesalt include file */
- #define MACH_MAC2 6
- #define MACH_MAC2X 7
- #define MACH_MAC2SI 18
- #define MACH_MAC2CI 11
- #define MACH_MAC2CX 8
- #define MACH_MACSE30 9
- #define MACH_MAC2FX 13
-
- /* MF processor passed in */
- #define MACH_68020 0
- #define MACH_68030 1
- #define MACH_68040 2
- #define MACH_PENTIUM 3 /* 66 and 99 MHz versions *only* */
-
- /* values for cpuspeed (not really related to clock speed due to caches) */
- #define MHZ_8 1
- #define MHZ_16 2
- #define MHZ_25 3
- #define MHZ_33 4
- #define MHZ_40 5
-
- #ifdef KERNEL
- extern int machineid, ectype;
- extern char *intiobase, *intiolimit;
- extern char *extiobase, *extiolimit;
-
- #endif
-
- /* physical memory sections */
- #define ROMBASE (0x40000000)
- #define IOBASE (0x50000000)
- #define INTIOBASE IOBASE
- #define IOTOP (0x51000000) /* ~ 128 K */
- #define IOMAPSIZE btoc(IOTOP - IOBASE)
-
- /* ALICE 05/23/92 BG -- These need to be changed. */
- #ifdef NO_SUPER_SPACE_YET
- #define NBSBASE 0x60000000 /* NUBUS Super space */
- #define NBSTOP 0xF0000000
- #endif
- #define NBBASE 0xF9000000 /* NUBUS space */
- #define NBTOP 0xFF000000 /* NUBUS space */
- #define NBMAPSIZE btoc(NBTOP-NBBASE) /* ~ 96 megs */
- #define NBMEMSIZE 0x01000000 /* 16 megs per card */
- #define NBROMOFFSET 0x00FF0000 /* Last 64K == ROM */
-
- /*
- * IO space:
- *
- * Internal IO space is mapped in the kernel from ``intiobase'' to
- * ``intiolimit'' (defined in locore.s). Since it is always mapped,
- * conversion between physical and kernel virtual addresses is easy.
- */
- #define ISIIOVA(va) \
- ((char *)(va) >= intiobase && (char *)(va) < intiolimit)
- #define IIOV(pa) ((int)(pa)-INTIOBASE+(int)intiobase)
- #define IIOP(va) ((int)(va)-(int)intiobase+INTIOBASE)
- #define IIOPOFF(pa) ((int)(pa)-INTIOBASE)
-
- /*
- ALICE 05/24/92,13:25:19 BG -- We need to make sure to map NuBus memory in
- the kernel, too.
- ALICE 06/29/92,20:40:00 LK -- I did that, thank you very much. Been there.
- */
-
-
- /*
- * 68851 and 68030 MMU
- */
- #define PMMU_LVLMASK 0x0007
- #define PMMU_INV 0x0400
- #define PMMU_WP 0x0800
- #define PMMU_ALV 0x1000
- #define PMMU_SO 0x2000
- #define PMMU_LV 0x4000
- #define PMMU_BE 0x8000
- #define PMMU_FAULT (PMMU_WP|PMMU_INV)
-
- /* 680X0 function codes */
- #define FC_USERD 1 /* user data space */
- #define FC_USERP 2 /* user program space */
- #define FC_SUPERD 5 /* supervisor data space */
- #define FC_SUPERP 6 /* supervisor program space */
- #define FC_CPU 7 /* CPU space */
-
- /* fields in the 68020 cache control register */
- #define IC_ENABLE 0x0001 /* enable instruction cache */
- #define IC_FREEZE 0x0002 /* freeze instruction cache */
- #define IC_CE 0x0004 /* clear instruction cache entry */
- #define IC_CLR 0x0008 /* clear entire instruction cache */
-
- /* additional fields in the 68030 cache control register */
- #define IC_BE 0x0010 /* instruction burst enable */
- #define DC_ENABLE 0x0100 /* data cache enable */
- #define DC_FREEZE 0x0200 /* data cache freeze */
- #define DC_CE 0x0400 /* clear data cache entry */
- #define DC_CLR 0x0800 /* clear entire data cache */
- #define DC_BE 0x1000 /* data burst enable */
- #define DC_WA 0x2000 /* write allocate */
-
- #define CACHE_ON (DC_WA|DC_BE|DC_CLR|DC_ENABLE|IC_BE|IC_CLR|IC_ENABLE)
- #define CACHE_OFF (DC_CLR|IC_CLR)
- #define CACHE_CLR (CACHE_ON)
- #define IC_CLEAR (DC_WA|DC_BE|DC_ENABLE|IC_BE|IC_CLR|IC_ENABLE)
- #define DC_CLEAR (DC_WA|DC_BE|DC_CLR|DC_ENABLE|IC_BE|IC_ENABLE)
-