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cpu.h revision 1.24.2.1
      1  1.24.2.1  jdolecek /*	$NetBSD: cpu.h,v 1.24.2.1 2002/03/16 15:58:54 jdolecek Exp $	*/
      2       1.1     chuck 
      3       1.1     chuck /*
      4       1.1     chuck  * Copyright (c) 1988 University of Utah.
      5       1.1     chuck  * Copyright (c) 1982, 1990, 1993
      6       1.1     chuck  *	The Regents of the University of California.  All rights reserved.
      7       1.1     chuck  *
      8       1.1     chuck  * This code is derived from software contributed to Berkeley by
      9       1.1     chuck  * the Systems Programming Group of the University of Utah Computer
     10       1.1     chuck  * Science Department.
     11       1.1     chuck  *
     12       1.1     chuck  * Redistribution and use in source and binary forms, with or without
     13       1.1     chuck  * modification, are permitted provided that the following conditions
     14       1.1     chuck  * are met:
     15       1.1     chuck  * 1. Redistributions of source code must retain the above copyright
     16       1.1     chuck  *    notice, this list of conditions and the following disclaimer.
     17       1.1     chuck  * 2. Redistributions in binary form must reproduce the above copyright
     18       1.1     chuck  *    notice, this list of conditions and the following disclaimer in the
     19       1.1     chuck  *    documentation and/or other materials provided with the distribution.
     20       1.1     chuck  * 3. All advertising materials mentioning features or use of this software
     21       1.1     chuck  *    must display the following acknowledgement:
     22       1.1     chuck  *	This product includes software developed by the University of
     23       1.1     chuck  *	California, Berkeley and its contributors.
     24       1.1     chuck  * 4. Neither the name of the University nor the names of its contributors
     25       1.1     chuck  *    may be used to endorse or promote products derived from this software
     26       1.1     chuck  *    without specific prior written permission.
     27       1.1     chuck  *
     28       1.1     chuck  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29       1.1     chuck  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30       1.1     chuck  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31       1.1     chuck  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32       1.1     chuck  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33       1.1     chuck  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34       1.1     chuck  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35       1.1     chuck  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36       1.1     chuck  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37       1.1     chuck  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38       1.1     chuck  * SUCH DAMAGE.
     39       1.1     chuck  *
     40       1.1     chuck  * from: Utah $Hdr: cpu.h 1.16 91/03/25$
     41       1.1     chuck  *
     42       1.1     chuck  *	@(#)cpu.h	8.4 (Berkeley) 1/5/94
     43       1.1     chuck  */
     44       1.1     chuck 
     45      1.16       scw #ifndef _MACHINE_CPU_H_
     46      1.16       scw #define _MACHINE_CPU_H_
     47      1.16       scw 
     48       1.1     chuck /*
     49       1.1     chuck  * Exported definitions unique to mvme68k/68k cpu support.
     50       1.1     chuck  */
     51       1.1     chuck 
     52      1.22       mrg #if defined(_KERNEL_OPT)
     53      1.14   thorpej #include "opt_lockdebug.h"
     54      1.14   thorpej #endif
     55      1.14   thorpej 
     56       1.1     chuck /*
     57       1.4   thorpej  * Get common m68k CPU definitions.
     58       1.4   thorpej  */
     59       1.4   thorpej #include <m68k/cpu.h>
     60       1.4   thorpej #define	M68K_MMU_MOTOROLA
     61       1.4   thorpej 
     62      1.14   thorpej #include <sys/sched.h>
     63      1.14   thorpej struct cpu_info {
     64      1.15       scw 	struct schedstate_percpu ci_schedstate; /* scheduler state */
     65      1.14   thorpej #if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
     66      1.14   thorpej 	u_long ci_spin_locks;		/* # of spin locks held */
     67      1.14   thorpej 	u_long ci_simple_locks;		/* # of simple locks held */
     68      1.14   thorpej #endif
     69      1.14   thorpej };
     70      1.14   thorpej 
     71      1.14   thorpej #ifdef _KERNEL
     72      1.14   thorpej extern struct cpu_info cpu_info_store;
     73      1.14   thorpej 
     74      1.14   thorpej #define	curcpu()			(&cpu_info_store)
     75      1.14   thorpej 
     76       1.4   thorpej /*
     77       1.1     chuck  * definitions of cpu-dependent requirements
     78       1.1     chuck  * referenced in generic code
     79       1.1     chuck  */
     80       1.1     chuck #define	cpu_swapin(p)			/* nothing */
     81       1.1     chuck #define	cpu_wait(p)			/* nothing */
     82       1.1     chuck #define cpu_swapout(p)			/* nothing */
     83      1.12   thorpej #define	cpu_number()			0
     84       1.1     chuck 
     85       1.1     chuck /*
     86       1.1     chuck  * Arguments to hardclock and gatherstats encapsulate the previous
     87       1.1     chuck  * machine state in an opaque clockframe.  One the mvme68k, we use
     88       1.1     chuck  * what the hardware pushes on an interrupt (frame format 0).
     89       1.1     chuck  */
     90       1.1     chuck struct clockframe {
     91       1.1     chuck 	u_short	sr;		/* sr at time of interrupt */
     92       1.1     chuck 	u_long	pc;		/* pc at time of interrupt */
     93      1.24       scw 	u_short	fmt:4,
     94      1.24       scw 		vec:12;		/* vector offset (4-word frame) */
     95      1.24       scw } __attribute__((packed));
     96       1.1     chuck 
     97       1.1     chuck #define	CLKF_USERMODE(framep)	(((framep)->sr & PSL_S) == 0)
     98       1.1     chuck #define	CLKF_BASEPRI(framep)	(((framep)->sr & PSL_IPL) == 0)
     99       1.1     chuck #define	CLKF_PC(framep)		((framep)->pc)
    100      1.24       scw 
    101      1.24       scw /*
    102      1.24       scw  * The clock interrupt handler can determine if it's a nested
    103      1.24       scw  * interrupt by checking for interrupt_depth > 1.
    104      1.24       scw  * (Remember, the clock interrupt handler itself will cause the
    105      1.24       scw  * depth counter to be incremented).
    106      1.24       scw  */
    107      1.24       scw extern volatile unsigned int interrupt_depth;
    108      1.24       scw #define	CLKF_INTR(framep)	(interrupt_depth > 1)
    109       1.1     chuck 
    110       1.1     chuck 
    111       1.1     chuck /*
    112       1.1     chuck  * Preempt the current process if in interrupt from user mode,
    113       1.1     chuck  * or after the current trap/syscall if in system mode.
    114       1.1     chuck  */
    115       1.7    scottr extern int want_resched;	/* resched() was called */
    116      1.18   thorpej #define	need_resched(ci)	{ want_resched++; aston(); }
    117       1.1     chuck 
    118       1.1     chuck /*
    119       1.1     chuck  * Give a profiling tick to the current process when the user profiling
    120       1.1     chuck  * buffer pages are invalid.  On the hp300, request an ast to send us
    121       1.1     chuck  * through trap, marking the proc as needing a profiling tick.
    122       1.1     chuck  */
    123       1.1     chuck #define	need_proftick(p)	{ (p)->p_flag |= P_OWEUPC; aston(); }
    124       1.1     chuck 
    125       1.1     chuck /*
    126       1.1     chuck  * Notify the current process (p) that it has a signal pending,
    127       1.1     chuck  * process as soon as possible.
    128       1.1     chuck  */
    129       1.1     chuck #define	signotify(p)	aston()
    130       1.1     chuck 
    131       1.7    scottr extern int astpending;		/* need to trap before returning to user mode */
    132       1.1     chuck #define aston() (astpending++)
    133      1.14   thorpej 
    134      1.14   thorpej #endif /* _KERNEL */
    135       1.1     chuck 
    136       1.1     chuck /*
    137       1.1     chuck  * CTL_MACHDEP definitions.
    138       1.1     chuck  */
    139       1.1     chuck #define	CPU_CONSDEV		1	/* dev_t: console terminal device */
    140       1.1     chuck #define	CPU_MAXID		2	/* number of valid machdep ids */
    141       1.1     chuck 
    142       1.1     chuck #define CTL_MACHDEP_NAMES { \
    143       1.1     chuck 	{ 0, 0 }, \
    144       1.1     chuck 	{ "console_device", CTLTYPE_STRUCT }, \
    145       1.1     chuck }
    146       1.1     chuck 
    147       1.6   thorpej #ifdef _KERNEL
    148       1.6   thorpej /*
    149       1.6   thorpej  * Associate MVME models with CPU types.
    150       1.6   thorpej  */
    151  1.24.2.1  jdolecek #define	MVME68K		1
    152       1.6   thorpej 
    153       1.6   thorpej /*
    154       1.6   thorpej  * MVME-147; 68030 CPU
    155       1.6   thorpej  */
    156       1.6   thorpej #if defined(MVME147) && !defined(M68030)
    157       1.6   thorpej #define M68030
    158       1.6   thorpej #endif
    159       1.6   thorpej 
    160       1.6   thorpej /*
    161       1.6   thorpej  * MVME-162/166/167; 68040 CPU
    162       1.6   thorpej  */
    163       1.6   thorpej #if (defined(MVME162) || defined(MVME167)) && !defined(M68040)
    164       1.6   thorpej #define M68040
    165       1.6   thorpej #endif
    166       1.6   thorpej 
    167       1.6   thorpej /*
    168      1.20       scw  * MVME-172/177; 68060 CPU
    169       1.6   thorpej  */
    170      1.20       scw #if (defined(MVME172) || defined(MVME177)) && !defined(M68060)
    171       1.6   thorpej #define M68060
    172       1.6   thorpej #endif
    173       1.6   thorpej #endif /* _KERNEL */
    174       1.6   thorpej 
    175       1.6   thorpej /*
    176       1.6   thorpej  * Values for machineid; these match the Bug's values.
    177       1.6   thorpej  */
    178       1.6   thorpej #define	MVME_147	0x147
    179       1.6   thorpej #define	MVME_162	0x162
    180       1.6   thorpej #define	MVME_166	0x166
    181       1.6   thorpej #define	MVME_167	0x167
    182       1.6   thorpej #define	MVME_172	0x172
    183       1.6   thorpej #define	MVME_177	0x177
    184       1.1     chuck 
    185       1.1     chuck #ifdef _KERNEL
    186       1.6   thorpej extern	int machineid;
    187      1.10       scw extern	int cpuspeed;
    188       1.1     chuck extern	char *intiobase, *intiolimit;
    189       1.9       scw extern	u_int intiobase_phys, intiotop_phys;
    190      1.13       scw extern	u_long ether_data_buff_size;
    191      1.19       scw extern	u_char mvme_ea[6];
    192       1.3     chuck 
    193       1.3     chuck struct frame;
    194       1.3     chuck void	doboot __P((int))
    195       1.3     chuck 	__attribute__((__noreturn__));
    196      1.13       scw int	nmihand __P((void *));
    197       1.3     chuck void	mvme68k_abort __P((const char *));
    198       1.3     chuck void	physaccess __P((caddr_t, caddr_t, int, int));
    199       1.3     chuck void	physunaccess __P((caddr_t, int));
    200       1.3     chuck void	*iomap __P((u_long, size_t));
    201       1.3     chuck void	iounmap __P((void *, size_t));
    202      1.13       scw paddr_t	kvtop __P((caddr_t));
    203      1.13       scw void	loadustp __P((paddr_t));
    204       1.1     chuck 
    205      1.10       scw /* Prototypes from sys_machdep.c: */
    206      1.11        is int	cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *));
    207      1.10       scw int	dma_cachectl __P((caddr_t, int));
    208      1.10       scw 
    209      1.17       scw /* physical memory addresses where mvme147's onboard devices live */
    210       1.9       scw #define	INTIOBASE147	(0xfffe0000u)
    211       1.9       scw #define	INTIOTOP147	(0xfffe5000u)
    212       1.9       scw 
    213      1.20       scw /* ditto for mvme1[67][27] */
    214      1.20       scw #define	INTIOBASE1xx	(0xfff40000u)
    215      1.20       scw #define	INTIOTOP1xx	(0xfffd0000u)
    216      1.13       scw 
    217       1.9       scw #endif /* _KERNEL */
    218      1.16       scw 
    219      1.16       scw #endif /* _MACHINE_CPU_H_ */
    220