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cpu.h revision 1.41
      1  1.41  thorpej /*	$NetBSD: cpu.h,v 1.41 1996/09/11 00:19:00 thorpej Exp $	*/
      2  1.16      cgd 
      3   1.1   briggs /*
      4   1.1   briggs  * Copyright (c) 1988 University of Utah.
      5   1.1   briggs  * Copyright (c) 1982, 1990 The Regents of the University of California.
      6   1.1   briggs  * All rights reserved.
      7   1.1   briggs  *
      8   1.1   briggs  * This code is derived from software contributed to Berkeley by
      9   1.1   briggs  * the Systems Programming Group of the University of Utah Computer
     10   1.1   briggs  * Science Department.
     11   1.1   briggs  *
     12   1.1   briggs  * Redistribution and use in source and binary forms, with or without
     13   1.1   briggs  * modification, are permitted provided that the following conditions
     14   1.1   briggs  * are met:
     15   1.1   briggs  * 1. Redistributions of source code must retain the above copyright
     16   1.1   briggs  *    notice, this list of conditions and the following disclaimer.
     17   1.1   briggs  * 2. Redistributions in binary form must reproduce the above copyright
     18   1.1   briggs  *    notice, this list of conditions and the following disclaimer in the
     19   1.1   briggs  *    documentation and/or other materials provided with the distribution.
     20   1.1   briggs  * 3. All advertising materials mentioning features or use of this software
     21   1.1   briggs  *    must display the following acknowledgement:
     22   1.1   briggs  *	This product includes software developed by the University of
     23   1.1   briggs  *	California, Berkeley and its contributors.
     24   1.1   briggs  * 4. Neither the name of the University nor the names of its contributors
     25   1.1   briggs  *    may be used to endorse or promote products derived from this software
     26   1.1   briggs  *    without specific prior written permission.
     27   1.1   briggs  *
     28   1.1   briggs  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29   1.1   briggs  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30   1.1   briggs  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31   1.1   briggs  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32   1.1   briggs  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33   1.1   briggs  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34   1.1   briggs  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35   1.1   briggs  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36   1.1   briggs  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37   1.1   briggs  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38   1.1   briggs  * SUCH DAMAGE.
     39   1.1   briggs  */
     40   1.2   briggs 
     41   1.2   briggs /*
     42   1.2   briggs  *	Copyright (c) 1992, 1993 BCDL Labs.  All rights reserved.
     43   1.2   briggs  *	Allen Briggs, Chris Caputo, Michael Finch, Brad Grantham, Lawrence Kesteloot
     44   1.2   briggs 
     45   1.2   briggs  *	Redistribution of this source code or any part thereof is permitted,
     46   1.2   briggs  *	 provided that the following conditions are met:
     47   1.2   briggs  *	1) Utilized source contains the copyright message above, this list
     48   1.2   briggs  *	 of conditions, and the following disclaimer.
     49   1.2   briggs  *	2) Binary objects containing compiled source reproduce the
     50   1.2   briggs  *	 copyright notice above on startup.
     51   1.1   briggs  *
     52   1.2   briggs  *	CAVEAT: This source code is provided "as-is" by BCDL Labs, and any
     53   1.2   briggs  *	 warranties of ANY kind are disclaimed.  We don't even claim that it
     54   1.2   briggs  *	 won't crash your hard disk.  Basically, we want a little credit if
     55   1.2   briggs  *	 it works, but we don't want to get mail-bombed if it doesn't.
     56   1.1   briggs  */
     57   1.1   briggs 
     58   1.1   briggs /*
     59   1.1   briggs  * from: Utah $Hdr: cpu.h 1.16 91/03/25$
     60   1.1   briggs  *
     61  1.16      cgd  *	@(#)cpu.h	7.7 (Berkeley) 6/27/91
     62   1.1   briggs  */
     63   1.1   briggs 
     64   1.1   briggs /*
     65   1.1   briggs    ALICE
     66   1.1   briggs 	BG -- Sat May 23 23:58:23 EDT 1992
     67   1.3   briggs 	Exported defines and stuff unique to mac68k.
     68   1.3   briggs    A lot of this stuff is really specific to the m68k, not just the macs,
     69   1.3   briggs    but there isn't time to do anything about that right now...
     70   1.1   briggs  */
     71   1.1   briggs 
     72  1.29   briggs #ifndef _CPU_MACHINE_
     73  1.29   briggs #define _CPU_MACHINE_
     74  1.32   briggs 
     75  1.32   briggs #include <machine/pcb.h>
     76   1.8   briggs 
     77   1.1   briggs /*
     78  1.41  thorpej  * Get common m68k definitions.
     79  1.41  thorpej  */
     80  1.41  thorpej #include <m68k/cpu.h>
     81  1.41  thorpej #define	M68K_MMU_MOTOROLA
     82  1.41  thorpej 
     83  1.41  thorpej /*
     84   1.1   briggs  * definitions of cpu-dependent requirements
     85   1.1   briggs  * referenced in generic code
     86   1.1   briggs  */
     87  1.11   briggs #define	cpu_swapin(p)			/* nothing */
     88  1.11   briggs #define	cpu_wait(p)			/* nothing */
     89  1.26  mycroft #define	cpu_swapout(p)			/* nothing */
     90  1.29   briggs void cpu_set_kpc __P((struct proc *, void (*)(struct proc *)));
     91   1.1   briggs 
     92   1.1   briggs /*
     93   1.1   briggs  * Arguments to hardclock, softclock and gatherstats
     94   1.1   briggs  * encapsulate the previous machine state in an opaque
     95   1.1   briggs  * clockframe; for hp300, use just what the hardware
     96   1.1   briggs  * leaves on the stack.
     97   1.1   briggs  */
     98   1.1   briggs 
     99  1.10   briggs struct clockframe {
    100  1.11   briggs 	u_short	sr;
    101  1.11   briggs 	u_long	pc;
    102  1.11   briggs 	u_short	vo;
    103  1.10   briggs };
    104   1.1   briggs 
    105  1.11   briggs #define	CLKF_USERMODE(framep)	(((framep)->sr & PSL_S) == 0)
    106  1.11   briggs #define	CLKF_BASEPRI(framep)	(((framep)->sr & PSL_IPL) == 0)
    107   1.1   briggs #define	CLKF_PC(framep)		((framep)->pc)
    108  1.11   briggs #define	CLKF_INTR(framep)	(0) /* XXX should use PSL_M (see hp300) */
    109   1.1   briggs 
    110   1.1   briggs /*
    111   1.1   briggs  * Preempt the current process if in interrupt from user mode,
    112   1.1   briggs  * or after the current trap/syscall if in system mode.
    113   1.1   briggs  */
    114   1.1   briggs #define	need_resched()	{ want_resched++; aston(); }
    115   1.1   briggs 
    116   1.1   briggs /*
    117   1.1   briggs  * Give a profiling tick to the current process from the softclock
    118   1.1   briggs  * interrupt.  Request an ast to send us through trap(),
    119   1.1   briggs  * marking the proc as needing a profiling tick.
    120   1.1   briggs  */
    121  1.10   briggs #define	need_proftick(p)	( (p)->p_flag |= P_OWEUPC, aston() )
    122   1.1   briggs 
    123   1.1   briggs /*
    124   1.1   briggs  * Notify the current process (p) that it has a signal pending,
    125   1.1   briggs  * process as soon as possible.
    126   1.1   briggs  */
    127   1.1   briggs #define	signotify(p)	aston()
    128   1.1   briggs 
    129   1.1   briggs #define aston() (astpending++)
    130   1.1   briggs 
    131  1.22   briggs int	astpending;	/* need to trap before returning to user mode */
    132  1.22   briggs int	want_resched;	/* resched() was called */
    133   1.1   briggs 
    134   1.1   briggs /*
    135   1.1   briggs  * simulated software interrupt register
    136   1.1   briggs  */
    137  1.40   scottr extern unsigned char ssir;
    138   1.1   briggs 
    139   1.1   briggs #define SIR_NET		0x1
    140   1.1   briggs #define SIR_CLOCK	0x2
    141   1.2   briggs #define SIR_SERIAL	0x4
    142   1.1   briggs 
    143  1.40   scottr #define siroff(x)	ssir &= ~(x)
    144  1.40   scottr #define setsoftnet()	ssir |= SIR_NET
    145  1.40   scottr #define setsoftclock()	ssir |= SIR_CLOCK
    146  1.40   scottr #define setsoftserial()	ssir |= SIR_SERIAL
    147   1.1   briggs 
    148  1.11   briggs #define CPU_CONSDEV	1
    149  1.11   briggs #define CPU_MAXID	2
    150  1.11   briggs 
    151  1.11   briggs #define CTL_MACHDEP_NAMES { \
    152  1.11   briggs 	{ 0, 0 }, \
    153  1.11   briggs 	{ "console_device", CTLTYPE_STRUCT }, \
    154  1.11   briggs }
    155   1.1   briggs 
    156   1.7   briggs /* values for machineid --
    157   1.7   briggs  * 	These are equivalent to the MacOS Gestalt values. */
    158   1.7   briggs #define MACH_MACII		6
    159   1.7   briggs #define MACH_MACIIX		7
    160   1.7   briggs #define MACH_MACIICX		8
    161   1.2   briggs #define MACH_MACSE30		9
    162   1.7   briggs #define MACH_MACIICI		11
    163   1.7   briggs #define MACH_MACIIFX		13
    164   1.7   briggs #define MACH_MACIISI		18
    165   1.5   briggs #define MACH_MACQ900		20
    166   1.5   briggs #define MACH_MACPB170		21
    167   1.5   briggs #define MACH_MACQ700		22
    168   1.7   briggs #define MACH_MACCLASSICII	23
    169   1.7   briggs #define MACH_MACPB100		24
    170   1.5   briggs #define MACH_MACPB140		25
    171   1.7   briggs #define MACH_MACQ950		26
    172   1.7   briggs #define MACH_MACLCIII		27
    173   1.7   briggs #define MACH_MACPB210		29
    174   1.7   briggs #define MACH_MACC650		30
    175   1.7   briggs #define MACH_MACPB230		32
    176   1.7   briggs #define MACH_MACPB180		33
    177   1.7   briggs #define MACH_MACPB160		34
    178   1.7   briggs #define MACH_MACQ800		35
    179   1.7   briggs #define MACH_MACQ650		36
    180   1.6   briggs #define MACH_MACLCII		37
    181   1.7   briggs #define MACH_MACPB250		38
    182   1.7   briggs #define MACH_MACIIVI		44
    183   1.7   briggs #define MACH_MACP600		45
    184   1.7   briggs #define MACH_MACIIVX		48
    185   1.7   briggs #define MACH_MACCCLASSIC	49
    186   1.7   briggs #define MACH_MACPB165C		50
    187   1.7   briggs #define MACH_MACC610		52
    188   1.7   briggs #define MACH_MACQ610		53
    189   1.7   briggs #define MACH_MACPB145		54
    190   1.7   briggs #define MACH_MACLC520		56
    191   1.7   briggs #define MACH_MACC660AV		60
    192   1.7   briggs #define MACH_MACP460		62
    193   1.7   briggs #define MACH_MACPB180C		71
    194  1.38   scottr #define	MACH_MACPB500		72
    195   1.7   briggs #define MACH_MACPB270		77
    196   1.7   briggs #define MACH_MACQ840AV		78
    197   1.7   briggs #define MACH_MACP550		80
    198   1.7   briggs #define MACH_MACPB165		84
    199   1.7   briggs #define MACH_MACTV		88
    200   1.7   briggs #define MACH_MACLC475		89
    201   1.7   briggs #define MACH_MACLC575		92
    202   1.7   briggs #define MACH_MACQ605		94
    203  1.27   briggs #define MACH_MACQ630		98
    204  1.27   briggs #define MACH_MACPB280		102
    205  1.27   briggs #define MACH_MACPB280C		103
    206  1.27   briggs #define MACH_MACPB150		115
    207   1.1   briggs 
    208  1.13   briggs /*
    209  1.13   briggs  * Machine classes.  These define subsets of the above machines.
    210  1.13   briggs  */
    211  1.13   briggs #define MACH_CLASSH	0x0000	/* Hopeless cases... */
    212  1.13   briggs #define MACH_CLASSII	0x0001	/* MacII class */
    213  1.25   briggs #define MACH_CLASSIIci	0x0004	/* Have RBV, but no Egret */
    214  1.25   briggs #define MACH_CLASSIIsi	0x0005	/* Similar to IIci -- Have Egret. */
    215  1.25   briggs #define MACH_CLASSIIvx	0x0006	/* Similar to IIsi -- different via2 emul? */
    216  1.25   briggs #define MACH_CLASSLC	0x0007	/* Low-Cost/Performa/Wal-Mart Macs. */
    217  1.13   briggs #define MACH_CLASSPB	0x0008	/* Powerbooks.  Power management. */
    218  1.35   briggs #define MACH_CLASSDUO	0x0009	/* Powerbooks Duos.  More integration/Docks. */
    219  1.25   briggs #define MACH_CLASSIIfx	0x0080	/* The IIfx is in a class by itself. */
    220  1.36   briggs #define MACH_CLASSQ	0x0100	/* non-A/V Centris/Quadras. */
    221  1.36   briggs #define MACH_CLASSAV	0x0101	/* A/V Centris/Quadras. */
    222  1.13   briggs 
    223   1.1   briggs #define MACH_68020	0
    224   1.1   briggs #define MACH_68030	1
    225   1.1   briggs #define MACH_68040	2
    226   1.1   briggs #define MACH_PENTIUM	3	/* 66 and 99 MHz versions *only* */
    227   1.1   briggs 
    228  1.18   briggs #ifdef _KERNEL
    229  1.13   briggs struct mac68k_machine_S {
    230  1.13   briggs 	int			cpu_model_index;
    231  1.13   briggs 	/*
    232  1.13   briggs 	 * Misc. info from booter.
    233  1.13   briggs 	 */
    234  1.13   briggs 	int			machineid;
    235  1.13   briggs 	int			mach_processor;
    236  1.13   briggs 	int			mach_memsize;
    237  1.13   briggs 	int			booter_version;
    238  1.13   briggs 	/*
    239  1.13   briggs 	 * Debugging flags.
    240  1.13   briggs 	 */
    241  1.13   briggs 	int			do_graybars;
    242  1.13   briggs 	int			serial_boot_echo;
    243  1.15   briggs 	int			serial_console;
    244  1.37   briggs 	int			modem_flags;
    245  1.37   briggs 	int			modem_cts_clk;
    246  1.37   briggs 	int			modem_dcd_clk;
    247  1.37   briggs 	int			print_flags;
    248  1.37   briggs 	int			print_cts_clk;
    249  1.37   briggs 	int			print_dcd_clk;
    250  1.13   briggs 	/*
    251  1.13   briggs 	 * Misc. hardware info.
    252  1.13   briggs 	 */
    253  1.13   briggs 	int			scsi80;		/* Has NCR 5380 */
    254  1.13   briggs 	int			scsi96;		/* Has NCR 53C96 */
    255  1.13   briggs 	int			scsi96_2;	/* Has 2nd 53C96 */
    256  1.14   briggs 	int			sonic;		/* Has SONIC e-net */
    257  1.13   briggs 
    258  1.13   briggs 	int			sccClkConst;	/* "Constant" for SCC bps */
    259  1.13   briggs };
    260  1.13   briggs 
    261  1.17   briggs 	/* What kind of model is this */
    262  1.17   briggs struct cpu_model_info {
    263  1.17   briggs 	int	machineid;	/* MacOS Gestalt value. */
    264  1.17   briggs 	char	*model_major;	/* Make this distinction to save a few */
    265  1.17   briggs 	char	*model_minor;	/*      bytes--might be useful, too. */
    266  1.17   briggs 	int	class;		/* Rough class of machine. */
    267  1.17   briggs 	  /* forwarded romvec_s is defined in mac68k/macrom.h */
    268  1.17   briggs 	struct romvec_s *rom_vectors; /* Pointer to our known rom vectors */
    269  1.17   briggs };
    270  1.17   briggs extern struct cpu_model_info *current_mac_model;
    271  1.17   briggs 
    272  1.13   briggs extern unsigned long		IOBase;		/* Base address of I/O */
    273  1.13   briggs extern unsigned long		NuBusBase;	/* Base address of NuBus */
    274  1.11   briggs 
    275  1.13   briggs extern  struct mac68k_machine_S	mac68k_machine;
    276  1.24   briggs extern	unsigned long		load_addr;
    277  1.18   briggs #endif /* _KERNEL */
    278   1.1   briggs 
    279   1.1   briggs /* physical memory sections */
    280  1.17   briggs #define	ROMBASE		(0x40800000)
    281  1.36   briggs #define	ROMLEN		(0x00200000)		/* 2MB will work for all 68k */
    282  1.36   briggs #define	ROMMAPSIZE	btoc(ROMLEN)		/* 32k of page tables.  */
    283  1.13   briggs 
    284  1.28   briggs #define IIOMAPSIZE	btoc(0x00100000)	/* 1MB should be enough */
    285   1.1   briggs 
    286  1.23   briggs /* XXX -- Need to do something about superspace.
    287  1.23   briggs  * Technically, NuBus superspace starts at 0x60000000, but no
    288  1.23   briggs  * known Macintosh has used any slot lower numbered than 9, and
    289  1.23   briggs  * the super space is defined as 0xS000 0000 through 0xSFFF FFFF
    290  1.23   briggs  * where S is the slot number--ranging from 0x9 - 0xE.
    291  1.23   briggs  */
    292  1.23   briggs #define	NBSBASE		0x90000000
    293   1.1   briggs #define	NBSTOP		0xF0000000
    294   1.1   briggs #define NBBASE		0xF9000000	/* NUBUS space */
    295   1.1   briggs #define NBTOP		0xFF000000	/* NUBUS space */
    296   1.1   briggs #define NBMAPSIZE	btoc(NBTOP-NBBASE)	/* ~ 96 megs */
    297   1.1   briggs #define NBMEMSIZE	0x01000000	/* 16 megs per card */
    298   1.1   briggs #define NBROMOFFSET	0x00FF0000	/* Last 64K == ROM */
    299  1.30   briggs 
    300  1.30   briggs __BEGIN_DECLS
    301  1.31   briggs /* machdep.c */
    302  1.31   briggs u_int get_mapping __P((void));
    303  1.31   briggs 
    304  1.31   briggs /* locore.s */
    305  1.34   briggs void	m68881_restore __P((struct fpframe *));
    306  1.31   briggs void	m68881_save __P((struct fpframe *));
    307  1.31   briggs u_int	getsfc __P((void));
    308  1.31   briggs u_int	getdfc __P((void));
    309  1.31   briggs void	TBIA __P((void));
    310  1.31   briggs void	TBIAS __P((void));
    311  1.31   briggs void	TBIS __P((vm_offset_t));
    312  1.31   briggs void	DCFP __P((vm_offset_t));
    313  1.31   briggs void	ICPP __P((vm_offset_t));
    314  1.31   briggs void	DCIU __P((void));
    315  1.31   briggs void	ICIA __P((void));
    316  1.31   briggs void	DCFL __P((vm_offset_t));
    317  1.31   briggs int	suline __P((caddr_t, caddr_t));
    318  1.31   briggs int	susword __P((caddr_t, u_int));
    319  1.31   briggs void	savectx __P((struct pcb *));
    320  1.31   briggs void	proc_trampoline __P((void));
    321  1.31   briggs 
    322  1.31   briggs /* trap.c */
    323  1.31   briggs void	child_return __P((struct proc *, struct frame));
    324  1.31   briggs 
    325  1.30   briggs __END_DECLS
    326   1.8   briggs 
    327  1.29   briggs #endif	/* _CPU_MACHINE_ */
    328