/* $NetBSD: cpu.h,v 1.6 1996/09/12 05:26:37 thorpej Exp $ */ /* * Copyright (c) 1988 University of Utah. * Copyright (c) 1982, 1990, 1993 * 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. * * from: Utah $Hdr: cpu.h 1.16 91/03/25$ * * @(#)cpu.h 8.4 (Berkeley) 1/5/94 */ /* * Exported definitions unique to mvme68k/68k cpu support. */ /* * Get common m68k CPU 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 */ /* * Arguments to hardclock and gatherstats encapsulate the previous * machine state in an opaque clockframe. One the mvme68k, we use * what the hardware pushes on an interrupt (frame format 0). */ struct clockframe { u_short sr; /* sr at time of interrupt */ u_long pc; /* pc at time of interrupt */ u_short vo; /* vector offset (4-word frame) */ }; #define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0) #define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0) #define CLKF_PC(framep) ((framep)->pc) #if 0 /* We would like to do it this way... */ #define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0) #else /* but until we start using PSL_M, we have to do this instead */ #define CLKF_INTR(framep) (0) /* XXX */ #endif /* * 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 when the user profiling * buffer pages are invalid. On the hp300, 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 unsigned char ssir; #define SIR_NET 0x1 #define SIR_CLOCK 0x2 #define setsoftint(x) ssir |= (x) #define siroff(x) ssir &= ~(x) #define setsoftnet() ssir |= SIR_NET #define setsoftclock() ssir |= SIR_CLOCK extern unsigned long allocate_sir(); /* * CTL_MACHDEP definitions. */ #define CPU_CONSDEV 1 /* dev_t: console terminal device */ #define CPU_MAXID 2 /* number of valid machdep ids */ #define CTL_MACHDEP_NAMES { \ { 0, 0 }, \ { "console_device", CTLTYPE_STRUCT }, \ } #ifdef _KERNEL /* * Associate MVME models with CPU types. */ /* * MVME-147; 68030 CPU */ #if defined(MVME147) && !defined(M68030) #define M68030 #endif /* * MVME-162/166/167; 68040 CPU */ #if (defined(MVME162) || defined(MVME167)) && !defined(M68040) #define M68040 #endif /* * MVME-177 (what about 172?); 68060 CPU */ #if defined(MVME177) && !defined(M68060) #define M68060 #endif #endif /* _KERNEL */ /* * Values for machineid; these match the Bug's values. */ #define MVME_147 0x147 #define MVME_162 0x162 #define MVME_166 0x166 #define MVME_167 0x167 #define MVME_172 0x172 #define MVME_177 0x177 #ifdef _KERNEL extern int machineid; extern char *intiobase, *intiolimit; struct frame; void doboot __P((int)) __attribute__((__noreturn__)); int badaddr __P((caddr_t, int)); void nmihand __P((struct frame *)); void mvme68k_abort __P((const char *)); void physaccess __P((caddr_t, caddr_t, int, int)); void physunaccess __P((caddr_t, int)); void *iomap __P((u_long, size_t)); void iounmap __P((void *, size_t)); #endif /* physical memory sections for mvme147 */ #define INTIOBASE (0xfffe0000) #define INTIOTOP (0xfffe5000) /* * Internal IO space: * * Ranges from 0x800000 to 0x1000000 (IIOMAPSIZE). * * 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) #define IIOMAPSIZE btoc(INTIOTOP-INTIOBASE) /* 1mb */