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cpu.h revision 1.38.8.4
      1  1.38.8.4  nathanw /*	$NetBSD: cpu.h,v 1.38.8.4 2002/11/11 21:58:32 nathanw Exp $	*/
      2  1.38.8.2      scw 
      3  1.38.8.2      scw /*
      4  1.38.8.2      scw  * Copyright (c) 1988 University of Utah.
      5  1.38.8.2      scw  * Copyright (c) 1982, 1990, 1993
      6  1.38.8.2      scw  *	The Regents of the University of California.  All rights reserved.
      7  1.38.8.2      scw  *
      8  1.38.8.2      scw  * This code is derived from software contributed to Berkeley by
      9  1.38.8.2      scw  * the Systems Programming Group of the University of Utah Computer
     10  1.38.8.2      scw  * Science Department.
     11  1.38.8.2      scw  *
     12  1.38.8.2      scw  * Redistribution and use in source and binary forms, with or without
     13  1.38.8.2      scw  * modification, are permitted provided that the following conditions
     14  1.38.8.2      scw  * are met:
     15  1.38.8.2      scw  * 1. Redistributions of source code must retain the above copyright
     16  1.38.8.2      scw  *    notice, this list of conditions and the following disclaimer.
     17  1.38.8.2      scw  * 2. Redistributions in binary form must reproduce the above copyright
     18  1.38.8.2      scw  *    notice, this list of conditions and the following disclaimer in the
     19  1.38.8.2      scw  *    documentation and/or other materials provided with the distribution.
     20  1.38.8.2      scw  * 3. All advertising materials mentioning features or use of this software
     21  1.38.8.2      scw  *    must display the following acknowledgement:
     22  1.38.8.2      scw  *	This product includes software developed by the University of
     23  1.38.8.2      scw  *	California, Berkeley and its contributors.
     24  1.38.8.2      scw  * 4. Neither the name of the University nor the names of its contributors
     25  1.38.8.2      scw  *    may be used to endorse or promote products derived from this software
     26  1.38.8.2      scw  *    without specific prior written permission.
     27  1.38.8.2      scw  *
     28  1.38.8.2      scw  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  1.38.8.2      scw  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  1.38.8.2      scw  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  1.38.8.2      scw  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  1.38.8.2      scw  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  1.38.8.2      scw  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  1.38.8.2      scw  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  1.38.8.2      scw  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  1.38.8.2      scw  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  1.38.8.2      scw  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  1.38.8.2      scw  * SUCH DAMAGE.
     39  1.38.8.2      scw  *
     40  1.38.8.2      scw  * from: Utah $Hdr: cpu.h 1.16 91/03/25$
     41  1.38.8.2      scw  *
     42  1.38.8.2      scw  *	@(#)cpu.h	8.4 (Berkeley) 1/5/94
     43  1.38.8.2      scw  */
     44  1.38.8.2      scw 
     45  1.38.8.2      scw #ifndef _HP300_CPU_H_
     46  1.38.8.2      scw #define	_HP300_CPU_H_
     47  1.38.8.2      scw 
     48  1.38.8.2      scw #if defined(_KERNEL_OPT)
     49  1.38.8.2      scw #include "opt_lockdebug.h"
     50  1.38.8.2      scw #endif
     51  1.38.8.2      scw 
     52  1.38.8.2      scw /*
     53  1.38.8.2      scw  * Exported definitions unique to hp300/68k cpu support.
     54  1.38.8.2      scw  */
     55  1.38.8.2      scw 
     56  1.38.8.2      scw /*
     57  1.38.8.2      scw  * Get common m68k CPU definitions.
     58  1.38.8.2      scw  */
     59  1.38.8.2      scw #include <m68k/cpu.h>
     60  1.38.8.4  nathanw #include <machine/hp300spu.h>
     61  1.38.8.2      scw 
     62  1.38.8.2      scw /*
     63  1.38.8.2      scw  * Get interrupt glue.
     64  1.38.8.2      scw  */
     65  1.38.8.2      scw #include <machine/intr.h>
     66  1.38.8.2      scw 
     67  1.38.8.2      scw #include <sys/sched.h>
     68  1.38.8.2      scw struct cpu_info {
     69  1.38.8.2      scw 	struct schedstate_percpu ci_schedstate; /* scheduler state */
     70  1.38.8.2      scw #if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
     71  1.38.8.2      scw 	u_long ci_spin_locks;		/* # of spin locks held */
     72  1.38.8.2      scw 	u_long ci_simple_locks;		/* # of simple locks held */
     73  1.38.8.2      scw #endif
     74  1.38.8.2      scw };
     75  1.38.8.2      scw 
     76  1.38.8.2      scw #ifdef _KERNEL
     77  1.38.8.2      scw extern struct cpu_info cpu_info_store;
     78  1.38.8.2      scw 
     79  1.38.8.2      scw #define	curcpu()	(&cpu_info_store)
     80  1.38.8.2      scw 
     81  1.38.8.2      scw /*
     82  1.38.8.2      scw  * definitions of cpu-dependent requirements
     83  1.38.8.2      scw  * referenced in generic code
     84  1.38.8.2      scw  */
     85  1.38.8.2      scw #define	cpu_swapin(p)			/* nothing */
     86  1.38.8.2      scw #define	cpu_wait(p)			/* nothing */
     87  1.38.8.2      scw #define	cpu_swapout(p)			/* nothing */
     88  1.38.8.2      scw #define	cpu_number()			0
     89  1.38.8.2      scw 
     90  1.38.8.3  thorpej void	cpu_proc_fork(struct proc *, struct proc *);
     91  1.38.8.3  thorpej 
     92  1.38.8.2      scw /*
     93  1.38.8.2      scw  * Arguments to hardclock and gatherstats encapsulate the previous
     94  1.38.8.2      scw  * machine state in an opaque clockframe.  One the hp300, we use
     95  1.38.8.2      scw  * what the hardware pushes on an interrupt (frame format 0).
     96  1.38.8.2      scw  */
     97  1.38.8.2      scw struct clockframe {
     98  1.38.8.2      scw 	u_short	sr;		/* sr at time of interrupt */
     99  1.38.8.2      scw 	u_long	pc;		/* pc at time of interrupt */
    100  1.38.8.2      scw 	u_short	vo;		/* vector offset (4-word frame) */
    101  1.38.8.2      scw };
    102  1.38.8.2      scw 
    103  1.38.8.2      scw #define	CLKF_USERMODE(framep)	(((framep)->sr & PSL_S) == 0)
    104  1.38.8.2      scw #define	CLKF_BASEPRI(framep)	(((framep)->sr & PSL_IPL) == 0)
    105  1.38.8.2      scw #define	CLKF_PC(framep)		((framep)->pc)
    106  1.38.8.2      scw #if 0
    107  1.38.8.2      scw /* We would like to do it this way... */
    108  1.38.8.2      scw #define	CLKF_INTR(framep)	(((framep)->sr & PSL_M) == 0)
    109  1.38.8.2      scw #else
    110  1.38.8.2      scw /* but until we start using PSL_M, we have to do this instead */
    111  1.38.8.2      scw #define	CLKF_INTR(framep)	(0)	/* XXX */
    112  1.38.8.2      scw #endif
    113  1.38.8.2      scw 
    114  1.38.8.2      scw 
    115  1.38.8.2      scw /*
    116  1.38.8.2      scw  * Preempt the current process if in interrupt from user mode,
    117  1.38.8.2      scw  * or after the current trap/syscall if in system mode.
    118  1.38.8.2      scw  */
    119  1.38.8.2      scw extern int want_resched;	/* resched() was called */
    120  1.38.8.2      scw #define	need_resched(ci)	{ want_resched++; aston(); }
    121  1.38.8.2      scw 
    122  1.38.8.2      scw /*
    123  1.38.8.2      scw  * Give a profiling tick to the current process when the user profiling
    124  1.38.8.2      scw  * buffer pages are invalid.  On the hp300, request an ast to send us
    125  1.38.8.2      scw  * through trap, marking the proc as needing a profiling tick.
    126  1.38.8.2      scw  */
    127  1.38.8.2      scw #define	need_proftick(p)	{ (p)->p_flag |= P_OWEUPC; aston(); }
    128  1.38.8.2      scw 
    129  1.38.8.2      scw /*
    130  1.38.8.2      scw  * Notify the current process (p) that it has a signal pending,
    131  1.38.8.2      scw  * process as soon as possible.
    132  1.38.8.2      scw  */
    133  1.38.8.2      scw #define	signotify(p)	aston()
    134  1.38.8.2      scw 
    135  1.38.8.2      scw extern int astpending;		/* need to trap before returning to user mode */
    136  1.38.8.2      scw #define aston() (astpending++)
    137  1.38.8.2      scw 
    138  1.38.8.2      scw #endif /* _KERNEL */
    139  1.38.8.2      scw 
    140  1.38.8.2      scw /*
    141  1.38.8.2      scw  * CTL_MACHDEP definitions.
    142  1.38.8.2      scw  */
    143  1.38.8.2      scw #define	CPU_CONSDEV		1	/* dev_t: console terminal device */
    144  1.38.8.2      scw #define	CPU_MAXID		2	/* number of valid machdep ids */
    145  1.38.8.2      scw 
    146  1.38.8.2      scw #define CTL_MACHDEP_NAMES { \
    147  1.38.8.2      scw 	{ 0, 0 }, \
    148  1.38.8.2      scw 	{ "console_device", CTLTYPE_STRUCT }, \
    149  1.38.8.2      scw }
    150  1.38.8.2      scw 
    151  1.38.8.2      scw /*
    152  1.38.8.2      scw  * The rest of this should probably be moved to <machine/hp300spu.h>,
    153  1.38.8.2      scw  * although some of it could probably be put into generic 68k headers.
    154  1.38.8.2      scw  */
    155  1.38.8.2      scw 
    156  1.38.8.2      scw #ifdef _KERNEL
    157  1.38.8.2      scw extern	char *intiobase, *intiolimit;
    158  1.38.8.2      scw extern	void (*vectab[]) __P((void));
    159  1.38.8.2      scw 
    160  1.38.8.2      scw struct frame;
    161  1.38.8.2      scw struct fpframe;
    162  1.38.8.2      scw struct pcb;
    163  1.38.8.2      scw 
    164  1.38.8.2      scw /* locore.s functions */
    165  1.38.8.2      scw void	m68881_save __P((struct fpframe *));
    166  1.38.8.2      scw void	m68881_restore __P((struct fpframe *));
    167  1.38.8.2      scw int	suline __P((caddr_t, caddr_t));
    168  1.38.8.2      scw void	savectx __P((struct pcb *));
    169  1.38.8.2      scw void	switch_exit __P((struct lwp *));
    170  1.38.8.2      scw void	switch_lwp_exit __P((struct lwp *));
    171  1.38.8.2      scw void	proc_trampoline __P((void));
    172  1.38.8.2      scw void	loadustp __P((int));
    173  1.38.8.2      scw 
    174  1.38.8.2      scw void	doboot __P((void))
    175  1.38.8.2      scw 	__attribute__((__noreturn__));
    176  1.38.8.2      scw void	ecacheon __P((void));
    177  1.38.8.2      scw void	ecacheoff __P((void));
    178  1.38.8.2      scw 
    179  1.38.8.2      scw /* clock.c functions */
    180  1.38.8.2      scw void	hp300_calibrate_delay __P((void));
    181  1.38.8.2      scw 
    182  1.38.8.2      scw /* machdep.c functions */
    183  1.38.8.2      scw int	badaddr __P((caddr_t));
    184  1.38.8.2      scw int	badbaddr __P((caddr_t));
    185  1.38.8.2      scw 
    186  1.38.8.2      scw /* sys_machdep.c functions */
    187  1.38.8.2      scw int	cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *));
    188  1.38.8.2      scw 
    189  1.38.8.2      scw /* vm_machdep.c functions */
    190  1.38.8.2      scw void	physaccess __P((caddr_t, caddr_t, int, int));
    191  1.38.8.2      scw void	physunaccess __P((caddr_t, int));
    192  1.38.8.2      scw int	kvtop __P((caddr_t));
    193  1.38.8.2      scw 
    194  1.38.8.2      scw /* what is this supposed to do? i.e. how is it different than startrtclock? */
    195  1.38.8.2      scw #define	enablertclock()
    196  1.38.8.2      scw 
    197  1.38.8.2      scw #endif
    198  1.38.8.2      scw 
    199  1.38.8.2      scw /* physical memory sections */
    200  1.38.8.2      scw #define	ROMBASE		(0x00000000)
    201  1.38.8.2      scw #define	INTIOBASE	(0x00400000)
    202  1.38.8.2      scw #define	INTIOTOP	(0x00600000)
    203  1.38.8.2      scw #define	EXTIOBASE	(0x00600000)
    204  1.38.8.2      scw #define	EXTIOTOP	(0x20000000)
    205  1.38.8.2      scw #define	MAXADDR		(0xFFFFF000)
    206  1.38.8.2      scw 
    207  1.38.8.2      scw /*
    208  1.38.8.2      scw  * Internal IO space:
    209  1.38.8.2      scw  *
    210  1.38.8.2      scw  * Ranges from 0x400000 to 0x600000 (IIOMAPSIZE).
    211  1.38.8.2      scw  *
    212  1.38.8.2      scw  * Internal IO space is mapped in the kernel from ``intiobase'' to
    213  1.38.8.2      scw  * ``intiolimit'' (defined in locore.s).  Since it is always mapped,
    214  1.38.8.2      scw  * conversion between physical and kernel virtual addresses is easy.
    215  1.38.8.2      scw  */
    216  1.38.8.2      scw #define	ISIIOVA(va) \
    217  1.38.8.2      scw 	((char *)(va) >= intiobase && (char *)(va) < intiolimit)
    218  1.38.8.2      scw #define	IIOV(pa)	((int)(pa)-INTIOBASE+(int)intiobase)
    219  1.38.8.2      scw #define	IIOP(va)	((int)(va)-(int)intiobase+INTIOBASE)
    220  1.38.8.2      scw #define	IIOPOFF(pa)	((int)(pa)-INTIOBASE)
    221  1.38.8.2      scw #define	IIOMAPSIZE	btoc(INTIOTOP-INTIOBASE)	/* 2mb */
    222  1.38.8.2      scw 
    223  1.38.8.2      scw /*
    224  1.38.8.2      scw  * External IO space:
    225  1.38.8.2      scw  *
    226  1.38.8.2      scw  * DIO ranges from select codes 0-63 at physical addresses given by:
    227  1.38.8.2      scw  *	0x600000 + (sc - 32) * 0x10000
    228  1.38.8.2      scw  * DIO cards are addressed in the range 0-31 [0x600000-0x800000) for
    229  1.38.8.2      scw  * their control space and the remaining areas, [0x200000-0x400000) and
    230  1.38.8.2      scw  * [0x800000-0x1000000), are for additional space required by a card;
    231  1.38.8.2      scw  * e.g. a display framebuffer.
    232  1.38.8.2      scw  *
    233  1.38.8.2      scw  * DIO-II ranges from select codes 132-255 at physical addresses given by:
    234  1.38.8.2      scw  *	0x1000000 + (sc - 132) * 0x400000
    235  1.38.8.2      scw  * The address range of DIO-II space is thus [0x1000000-0x20000000).
    236  1.38.8.2      scw  *
    237  1.38.8.2      scw  * DIO/DIO-II space is too large to map in its entirety, instead devices
    238  1.38.8.2      scw  * are mapped into kernel virtual address space allocated from a range
    239  1.38.8.2      scw  * of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''.
    240  1.38.8.2      scw  */
    241  1.38.8.2      scw #define	DIOBASE		(0x600000)
    242  1.38.8.2      scw #define	DIOTOP		(0x1000000)
    243  1.38.8.2      scw #define	DIOCSIZE	(0x10000)
    244  1.38.8.2      scw #define	DIOIIBASE	(0x01000000)
    245  1.38.8.2      scw #define	DIOIITOP	(0x20000000)
    246  1.38.8.2      scw #define	DIOIICSIZE	(0x00400000)
    247  1.38.8.2      scw 
    248  1.38.8.2      scw /*
    249  1.38.8.2      scw  * HP MMU
    250  1.38.8.2      scw  */
    251  1.38.8.2      scw #define	MMUBASE		IIOPOFF(0x5F4000)
    252  1.38.8.2      scw #define	MMUSSTP		0x0
    253  1.38.8.2      scw #define	MMUUSTP		0x4
    254  1.38.8.2      scw #define	MMUTBINVAL	0x8
    255  1.38.8.2      scw #define	MMUSTAT		0xC
    256  1.38.8.2      scw #define	MMUCMD		MMUSTAT
    257  1.38.8.2      scw 
    258  1.38.8.2      scw #define	MMU_UMEN	0x0001	/* enable user mapping */
    259  1.38.8.2      scw #define	MMU_SMEN	0x0002	/* enable supervisor mapping */
    260  1.38.8.2      scw #define	MMU_CEN		0x0004	/* enable data cache */
    261  1.38.8.2      scw #define	MMU_BERR	0x0008	/* bus error */
    262  1.38.8.2      scw #define	MMU_IEN		0x0020	/* enable instruction cache */
    263  1.38.8.2      scw #define	MMU_FPE		0x0040	/* enable 68881 FP coprocessor */
    264  1.38.8.2      scw #define	MMU_WPF		0x2000	/* write protect fault */
    265  1.38.8.2      scw #define	MMU_PF		0x4000	/* page fault */
    266  1.38.8.2      scw #define	MMU_PTF		0x8000	/* page table fault */
    267  1.38.8.2      scw 
    268  1.38.8.2      scw #define	MMU_FAULT	(MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR)
    269  1.38.8.2      scw #define	MMU_ENAB	(MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE)
    270  1.38.8.2      scw 
    271  1.38.8.4  nathanw #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC)
    272  1.38.8.4  nathanw #define M68K_CACHEOPS_MACHDEP
    273  1.38.8.4  nathanw #endif
    274  1.38.8.4  nathanw 
    275  1.38.8.4  nathanw #ifdef CACHE_HAVE_PAC
    276  1.38.8.4  nathanw #define M68K_CACHEOPS_MACHDEP_PCIA
    277  1.38.8.4  nathanw #endif
    278  1.38.8.4  nathanw 
    279  1.38.8.4  nathanw #ifdef CACHE_HAVE_VAC
    280  1.38.8.4  nathanw #define M68K_CACHEOPS_MACHDEP_DCIA
    281  1.38.8.4  nathanw #define M68K_CACHEOPS_MACHDEP_DCIS
    282  1.38.8.4  nathanw #define M68K_CACHEOPS_MACHDEP_DCIU
    283  1.38.8.4  nathanw #define M68K_CACHEOPS_MACHDEP_TBIA
    284  1.38.8.4  nathanw #define M68K_CACHEOPS_MACHDEP_TBIS
    285  1.38.8.4  nathanw #define M68K_CACHEOPS_MACHDEP_TBIAS
    286  1.38.8.4  nathanw #define M68K_CACHEOPS_MACHDEP_TBIAU
    287  1.38.8.4  nathanw #endif
    288  1.38.8.4  nathanw 
    289  1.38.8.2      scw #endif /* _HP300_CPU_H_ */
    290