/* * 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 $Hdr: cpu.h 1.16 91/03/25$ * * from: @(#)cpu.h 7.7 (Berkeley) 6/27/91 * $Id: cpu.h,v 1.12.2.2 1994/08/11 22:29:00 mycroft Exp $ */ /* 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 _MACHINE_CPU_H_ #define _MACHINE_CPU_H_ 1 /* * definitions of cpu-dependent requirements * referenced in generic code */ #define COPY_SIGCODE /* copy sigcode above user stack in exec */ #define cpu_swapin(p) /* nothing */ #define cpu_exec(p) /* nothing */ #define cpu_wait(p) /* nothing */ #define cpu_setstack(p, ap) (p)->p_md.md_regs[SP] = ap #define cpu_set_init_frame(p, fp) (p)->p_md.md_regs = fp /* * 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 profile_tick(p, framep) ( (p)->p_flag |= P_OWEUPC, aston() ) #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 SIR_SERIAL 0x4 #define siroff(x) ssir &= ~(x) #define setsoftnet() ssir |= SIR_NET #define setsoftclock() ssir |= SIR_CLOCK #define setsoftserial() ssir |= SIR_SERIAL #define CPU_CONSDEV 1 #define CPU_MAXID 2 #define CTL_MACHDEP_NAMES { \ { 0, 0 }, \ { "console_device", CTLTYPE_STRUCT }, \ } /* values for machineid -- * These are equivalent to the MacOS Gestalt values. */ #define MACH_MACII 6 #define MACH_MACIIX 7 #define MACH_MACIICX 8 #define MACH_MACSE30 9 #define MACH_MACIICI 11 #define MACH_MACIIFX 13 #define MACH_MACIISI 18 #define MACH_MACQ900 20 #define MACH_MACPB170 21 #define MACH_MACQ700 22 #define MACH_MACCLASSICII 23 #define MACH_MACPB100 24 #define MACH_MACPB140 25 #define MACH_MACQ950 26 #define MACH_MACLCIII 27 #define MACH_MACPB210 29 #define MACH_MACC650 30 #define MACH_MACPB230 32 #define MACH_MACPB180 33 #define MACH_MACPB160 34 #define MACH_MACQ800 35 #define MACH_MACQ650 36 #define MACH_MACLCII 37 #define MACH_MACPB250 38 #define MACH_MACIIVI 44 #define MACH_MACP600 45 #define MACH_MACIIVX 48 #define MACH_MACCCLASSIC 49 #define MACH_MACPB165C 50 #define MACH_MACC610 52 #define MACH_MACQ610 53 #define MACH_MACPB145 54 #define MACH_MACLC520 56 #define MACH_MACC660AV 60 #define MACH_MACP460 62 #define MACH_MACPB180C 71 #define MACH_MACPB270 77 #define MACH_MACQ840AV 78 #define MACH_MACP550 80 #define MACH_MACPB165 84 #define MACH_MACTV 88 #define MACH_MACLC475 89 #define MACH_MACLC575 92 #define MACH_MACQ605 94 /* * Machine classes. These define subsets of the above machines. */ #define MACH_CLASSH 0x0000 /* Hopeless cases... */ #define MACH_CLASSII 0x0001 /* MacII class */ #define MACH_CLASSIIci 0x0003 /* Similar to IIci -- Have RBV. */ #define MACH_CLASSIIfx 0x0004 /* The IIfx is in a class by itself. */ #define MACH_CLASSPB 0x0008 /* Powerbooks. Power management. */ #define MACH_CLASSLC 0x0010 /* Low-Cost/Performa/Wal-Mart Macs. */ #define MACH_CLASSQ 0x0100 /* Centris/Quadras. */ /* MF processor passed in */ #define MACH_68020 0 #define MACH_68030 1 #define MACH_68040 2 #define MACH_PENTIUM 3 /* 66 and 99 MHz versions *only* */ /* Defines for mmutype */ #define MMU_68040 -2 #define MMU_68030 -1 /* #define MMU_HP 0 Just a reminder as to where this came from. */ #define MMU_68851 1 /* values for cpuspeed (not really related to clock speed due to caches) */ #define MHZ_8 1 #define MHZ_16 2 #define MHZ_25 3 #define MHZ_33 4 #define MHZ_40 5 #ifdef KERNEL struct mac68k_machine_S { int cpu_model_index; /* * Misc. info from booter. */ int machineid; int mach_processor; int mach_memsize; int booter_version; /* * Debugging flags. */ int do_graybars; int serial_boot_echo; int serial_console; /* * Misc. hardware info. */ int scsi80; /* Has NCR 5380 */ int scsi96; /* Has NCR 53C96 */ int scsi96_2; /* Has 2nd 53C96 */ int sonic; /* Has SONIC e-net */ int sccClkConst; /* "Constant" for SCC bps */ }; extern unsigned long IOBase; /* Base address of I/O */ extern unsigned long NuBusBase; /* Base address of NuBus */ extern struct mac68k_machine_S mac68k_machine; extern int mmutype, cpu040; extern unsigned long load_addr ; #endif /* physical memory sections */ #define ROMBASE (0x40000000) /* This should not be used. Use IOBase, instead. */ #define INTIOBASE (0x50000000) #define INTIOTOP (IOBase+0x01000000) #define IIOMAPSIZE btoc(0x01000000) /* XXX -- Need to do something about superspace. */ #ifdef NO_SUPER_SPACE_YET #define NBSBASE 0x60000000 /* NUBUS Super space */ #define NBSTOP 0xF0000000 #endif #define NBBASE 0xF9000000 /* NUBUS space */ #define NBTOP 0xFF000000 /* NUBUS space */ #define NBMAPSIZE btoc(NBTOP-NBBASE) /* ~ 96 megs */ #define NBMEMSIZE 0x01000000 /* 16 megs per card */ #define NBROMOFFSET 0x00FF0000 /* Last 64K == ROM */ /* * 68851 and 68030 MMU */ #define PMMU_LVLMASK 0x0007 #define PMMU_INV 0x0400 #define PMMU_WP 0x0800 #define PMMU_ALV 0x1000 #define PMMU_SO 0x2000 #define PMMU_LV 0x4000 #define PMMU_BE 0x8000 #define PMMU_FAULT (PMMU_WP|PMMU_INV) /* 680X0 function codes */ #define FC_USERD 1 /* user data space */ #define FC_USERP 2 /* user program space */ #define FC_SUPERD 5 /* supervisor data space */ #define FC_SUPERP 6 /* supervisor program space */ #define FC_CPU 7 /* CPU space */ /* fields in the 68020 cache control register */ #define IC_ENABLE 0x0001 /* enable instruction cache */ #define IC_FREEZE 0x0002 /* freeze instruction cache */ #define IC_CE 0x0004 /* clear instruction cache entry */ #define IC_CLR 0x0008 /* clear entire instruction cache */ /* additional fields in the 68030 cache control register */ #define IC_BE 0x0010 /* instruction burst enable */ #define DC_ENABLE 0x0100 /* data cache enable */ #define DC_FREEZE 0x0200 /* data cache freeze */ #define DC_CE 0x0400 /* clear data cache entry */ #define DC_CLR 0x0800 /* clear entire data cache */ #define DC_BE 0x1000 /* data burst enable */ #define DC_WA 0x2000 /* write allocate */ /* fields in the 68040 cache control register */ #define IC40_ENABLE 0x00008000 /* enable instruction cache */ #define DC40_ENABLE 0x80000000 /* enable data cache */ #define CACHE_ON (DC_WA|DC_BE|DC_CLR|DC_ENABLE|IC_BE|IC_CLR|IC_ENABLE) #define CACHE_OFF (DC_CLR|IC_CLR) #define CACHE_CLR (CACHE_ON) #define IC_CLEAR (DC_WA|DC_BE|DC_ENABLE|IC_BE|IC_CLR|IC_ENABLE) #define DC_CLEAR (DC_WA|DC_BE|DC_CLR|DC_ENABLE|IC_BE|IC_ENABLE) /* 68040 cache control */ #define CACHE40_ON (IC40_ENABLE|DC40_ENABLE) #define CACHE40_OFF 0x00000000 #endif /* !_MACHINE_CPU_H_ */