/* $OpenBSD: cpu.h,v 1.16 1997/03/30 21:53:23 briggs Exp $ */ /* $NetBSD: cpu.h,v 1.45 1997/02/10 22:13:40 scottr Exp $ */ /* * 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 $Hdr: cpu.h 1.16 91/03/25$ * * @(#)cpu.h 7.7 (Berkeley) 6/27/91 */ /* ALICE BG -- Sat May 23 23:58:23 EDT 1992 Exported defines and stuff unique to mac68k. A lot of this stuff is really specific to the m68k, not just the macs, but there isn't time to do anything about that right now... */ #ifndef _CPU_MACHINE_ #define _CPU_MACHINE_ #include /* * Get common m68k definitions. */ #include #define M68K_MMU_MOTOROLA /* * definitions of cpu-dependent requirements * referenced in generic code */ #define cpu_swapin(p) /* nothing */ #define cpu_wait(p) /* nothing */ #define cpu_swapout(p) /* nothing */ void cpu_set_kpc __P((struct proc *, void (*)(struct proc *))); /* * 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. */ struct clockframe { u_short sr; u_long pc; u_short vo; }; #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) #define CLKF_PC(framep) ((framep)->pc) #define CLKF_INTR(framep) (0) /* XXX should use PSL_M (see hp300) */ /* * 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 need_proftick(p) ( (p)->p_flag |= P_OWEUPC, 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 */ /* * simulated software interrupt register */ extern volatile u_int8_t ssir; #define SIR_NET 0x01 #define SIR_CLOCK 0x02 #define SIR_SERIAL 0x04 /* Mac-specific SSIR(s) */ #define SIR_DTMGR 0x80 #define siroff(mask) \ __asm __volatile ( "andb %0,_ssir" : : "ir" (~(mask) & 0xff)); #define setsoftnet() \ __asm __volatile ( "orb %0,_ssir" : : "i" (SIR_NET)) #define setsoftclock() \ __asm __volatile ( "orb %0,_ssir" : : "i" (SIR_CLOCK)) #define setsoftserial() \ __asm __volatile ( "orb %0,_ssir" : : "i" (SIR_SERIAL)) #define setsoftdtmgr() \ __asm __volatile ( "orb %0,_ssir" : : "i" (SIR_DTMGR)) #define CPU_CONSDEV 1 #define CPU_MAXID 2 #define CTL_MACHDEP_NAMES { \ { 0, 0 }, \ { "console_device", CTLTYPE_STRUCT }, \ } /* physical memory sections */ #define ROMBASE (0x40800000) #define ROMLEN (0x00200000) /* 2MB should be enough! */ #define ROMMAPSIZE btoc(ROMLEN) /* 32k of page tables. */ #define IIOMAPSIZE btoc(0x00100000) /* XXX -- Need to do something about superspace. * Technically, NuBus superspace starts at 0x60000000, but no * known Macintosh has used any slot lower numbered than 9, and * the super space is defined as 0xS000 0000 through 0xSFFF FFFF * where S is the slot number--ranging from 0x9 - 0xE. */ #define NBSBASE 0x90000000 #define NBSTOP 0xF0000000 #define NBBASE 0xF9000000 /* NUBUS space */ #define NBTOP 0xFF000000 /* NUBUS space */ #define NBMAPSIZE btoc(NBTOP-NBBASE) /* ~ 96 megs */ #define NBMEMSIZE 0x01000000 /* 16 megs per card */ __BEGIN_DECLS /* machdep.c */ void mac68k_set_bell_callback __P((int (*)(void *, int, int, int), void *)); int mac68k_ring_bell __P((int, int, int)); u_int get_mapping __P((void)); /* locore.s */ void m68881_restore __P((struct fpframe *)); void m68881_save __P((struct fpframe *)); u_int getsfc __P((void)); u_int getdfc __P((void)); void TBIA __P((void)); void TBIAS __P((void)); void TBIS __P((vm_offset_t)); void DCFP __P((vm_offset_t)); void ICPP __P((vm_offset_t)); void DCIU __P((void)); void ICIA __P((void)); void DCFL __P((vm_offset_t)); int suline __P((caddr_t, caddr_t)); void savectx __P((struct pcb *)); void proc_trampoline __P((void)); /* trap.c */ void child_return __P((struct proc *, struct frame)); /* vm_machdep.c */ void physaccess __P((caddr_t, caddr_t, register int, register int)); __END_DECLS #endif /* _CPU_MACHINE_ */