/* $NetBSD: cpu.h,v 1.43 2016/12/17 14:36:30 flxd 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. 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 */ #ifndef _NEWS68K_CPU_H_ #define _NEWS68K_CPU_H_ #if defined(_KERNEL_OPT) #include "opt_lockdebug.h" #include "opt_m68k_arch.h" #endif /* * Get common m68k CPU definitions. */ #include #if defined(_KERNEL) /* * Exported definitions unique to news68k cpu support. */ /* * XXX news1700 L2 cache would be corrupted with DC_BE and IC_BE... * XXX Should these be defined in machine/cpu.h? */ #undef CACHE_ON #undef CACHE_CLR #undef IC_CLEAR #undef DC_CLEAR #define CACHE_ON (DC_WA|DC_CLR|DC_ENABLE|IC_CLR|IC_ENABLE) #define CACHE_CLR CACHE_ON #define IC_CLEAR (DC_WA|DC_ENABLE|IC_CLR|IC_ENABLE) #define DC_CLEAR (DC_WA|DC_CLR|DC_ENABLE|IC_ENABLE) #define DCIC_CLR (DC_CLR|IC_CLR) #define CACHE_BE (DC_BE|IC_BE) /* * Get interrupt glue. */ #include /* * Arguments to hardclock and gatherstats encapsulate the previous * machine state in an opaque clockframe. On the news68k, 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_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 */ #include #define CLKF_INTR(framep) (idepth > 1) /* XXX */ #endif /* * Preempt the current process if in interrupt from user mode, * or after the current trap/syscall if in system mode. */ #define cpu_need_resched(ci,flags) do { \ __USE(flags); \ ci->ci_want_resched = 1; \ aston(); \ } while (/*CONSTCOND*/0) /* * Give a profiling tick to the current process when the user profiling * buffer pages are invalid. On the news68k, request an ast to send us * through trap, marking the proc as needing a profiling tick. */ #define cpu_need_proftick(l) \ do { (l)->l_pflag |= LP_OWEUPC; aston(); } while (/* CONSTCOND */0) /* * Notify the current process (p) that it has a signal pending, * process as soon as possible. */ #define cpu_signotify(l) aston() extern int astpending; /* need to trap before returning to user mode */ extern volatile u_char *ctrl_ast; #define aston() \ do { astpending++; *ctrl_ast = 0xff; } while (/* CONSTCOND */0) #endif /* _KERNEL */ /* * CTL_MACHDEP definitions. */ #define CPU_CONSDEV 1 /* dev_t: console terminal device */ #define CPU_MAXID 2 /* number of valid machdep ids */ #ifdef _KERNEL #if defined(news1700) || defined(news1200) #ifndef M68030 #define M68030 #endif #define M68K_MMU_MOTOROLA #endif #if defined(news1700) #define CACHE_HAVE_PAC #endif #endif #ifdef _KERNEL extern int systype; #define NEWS1700 0 #define NEWS1200 1 extern int cpuspeed; extern char *intiobase, *intiolimit, *extiobase; extern u_int intiobase_phys, intiotop_phys; extern u_int extiobase_phys, extiotop_phys; extern u_int intrcnt[]; extern void (*vectab[])(void); extern void *romcallvec; struct frame; /* locore.s functions */ int suline(void *, void *); void loadustp(int); void badtrap(void); void intrhand_vectored(void); int getsr(void); void doboot(int) __attribute__((__noreturn__)); void nmihand(struct frame *); void ecacheon(void); void ecacheoff(void); /* machdep.c functions */ int badaddr(void *, int); int badbaddr(void *); #endif /* physical memory sections */ #define ROMBASE 0xe0000000 #define INTIOBASE1700 0xe0c00000 #define INTIOTOP1700 0xe1d00000 /* XXX */ #define EXTIOBASE1700 0xf0f00000 #define EXTIOTOP1700 0xf1000000 /* XXX */ #define CTRL_POWER1700 0xe1380000 #define CTRL_LED1700 0xe0dc0000 #define INTIOBASE1200 0xe1000000 #define INTIOTOP1200 0xe1d00000 /* XXX */ #define EXTIOBASE1200 0xe4000000 #define EXTIOTOP1200 0xe4020000 /* XXX */ #define CTRL_POWER1200 0xe1000000 #define CTRL_LED1200 0xe1500001 #define MAXADDR 0xfffff000 /* * Internal IO space: * * 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) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase) #define ISIIOPA(pa) \ ((u_int)(pa) >= intiobase_phys && (u_int)(pa) < intiotop_phys) #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) /* XXX EIO space mapping should be modified like hp300 XXX */ #define EIOSIZE (extiotop_phys - extiobase_phys) #define ISEIOVA(va) \ ((char *)(va) >= extiobase && (char *)(va) < (char *)EIOSIZE) #define EIOV(pa) (((u_int)(pa) - extiobase_phys) + (u_int)extiobase) #if defined(CACHE_HAVE_PAC) || defined(CACHE_HAVE_VAC) #define M68K_CACHEOPS_MACHDEP #endif #ifdef CACHE_HAVE_PAC #define M68K_CACHEOPS_MACHDEP_PCIA #endif #ifdef CACHE_HAVE_VAC #define M68K_CACHEOPS_MACHDEP_DCIA #define M68K_CACHEOPS_MACHDEP_DCIS #define M68K_CACHEOPS_MACHDEP_DCIU #endif #endif /* !_NEWS68K_CPU_H_ */