/* $NetBSD: cpu.h,v 1.81 2026/04/26 12:49:37 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. 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 _HP300_CPU_H_ #define _HP300_CPU_H_ #if defined(_KERNEL_OPT) #include "opt_lockdebug.h" #include "opt_m68k_arch.h" #endif /* * Get common m68k CPU definitions. */ #include <m68k/cpu.h> #if defined(_KERNEL) /* * Exported definitions unique to hp300/68k cpu support. */ #include <machine/hp300spu.h> /* * The rest of this should probably be moved to <machine/hp300spu.h>, * although some of it could probably be put into generic 68k headers. */ extern uint8_t *intiobase, *extiobase; /* locore.s functions */ void doboot(void) __attribute__((__noreturn__)); void ecacheon(void); void ecacheoff(void); /* clock.c functions */ void hp300_calibrate_delay(void); /* what is this supposed to do? i.e. how is it different than startrtclock? */ #define enablertclock() #endif /* _KERNEL */ /* physical memory sections */ #define ROMBASE (0x00000000) #define INTIOBASE (0x00400000) #define INTIOTOP (0x00600000) #define INTIOSIZE (INTIOTOP - INTIOBASE) #define EXTIOBASE (0x00600000) #define EXTIOTOP (0x20000000) #define MAXADDR ((paddr_t)(0 - NBPG)) /* * Internal IO space: * * Ranges from 0x400000 to 0x600000 (IIOMAPSIZE). * * Internal IO space is mapped in the kernel from ``intiobase'' to * ``intiobase'' + INTIOSIZE. Since it is always mapped, * conversion between physical and kernel virtual addresses is easy. */ #define ISIIOVA(va) \ ((uint8_t *)(va) >= intiobase && \ (uint8_t *)(va) < (intiobase + INTIOSIZE)) #define IIOV(pa) ((paddr_t)(pa)-INTIOBASE+(vaddr_t)intiobase) #define IIOP(va) ((vaddr_t)(va)-(vaddr_t)intiobase+INTIOBASE) #define IIOPOFF(pa) ((paddr_t)(pa)-INTIOBASE) #define IIOMAPSIZE btoc(INTIOSIZE) /* 2mb */ /* * External IO space: * * DIO ranges from select codes 0-63 at physical addresses given by: * 0x600000 + (sc - 32) * 0x10000 * DIO cards are addressed in the range 0-31 [0x600000-0x800000) for * their control space and the remaining areas, [0x200000-0x400000) and * [0x800000-0x1000000), are for additional space required by a card; * e.g. a display framebuffer. * * DIO-II ranges from select codes 132-255 at physical addresses given by: * 0x1000000 + (sc - 132) * 0x400000 * The address range of DIO-II space is thus [0x1000000-0x20000000). * * DIO/DIO-II space is too large to map in its entirety, instead devices * are mapped into kernel virtual address space allocated from a range * of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''. */ #define DIOBASE (0x600000) #define DIOTOP (0x1000000) #define DIOCSIZE (0x10000) #define DIOIIBASE (0x01000000) #define DIOIITOP (0x20000000) #define DIOIICSIZE (0x00400000) /* * HP MMU */ #define MMUBASE IIOPOFF(0x5F4000) #define MMUSSTP 0x0 #define MMUUSTP 0x4 #define MMUTBINVAL 0x8 #define MMUSTAT 0xC #define MMUCMD MMUSTAT #define MMU_UMEN 0x0001 /* enable user mapping */ #define MMU_SMEN 0x0002 /* enable supervisor mapping */ #define MMU_CEN 0x0004 /* enable data cache */ #define MMU_BERR 0x0008 /* bus error */ #define MMU_IEN 0x0020 /* enable instruction cache */ #define MMU_FPE 0x0040 /* enable 68881 FP coprocessor */ #define MMU_WPF 0x2000 /* write protect fault */ #define MMU_PF 0x4000 /* page fault */ #define MMU_PTF 0x8000 /* page table fault */ #define MMU_FAULT (MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR) #define MMU_ENAB (MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE) #if defined(M68K_EC) #define M68K_CACHEOPS_MACHDEP #endif #ifdef M68K_EC_PAC #define M68K_CACHEOPS_MACHDEP_PCIA #endif #ifdef M68K_EC_VAC #define M68K_CACHEOPS_MACHDEP_DCIA #define M68K_CACHEOPS_MACHDEP_DCIS #define M68K_CACHEOPS_MACHDEP_DCIU #define M68K_CACHEOPS_MACHDEP_TBIA #define M68K_CACHEOPS_MACHDEP_TBIS #define M68K_CACHEOPS_MACHDEP_TBIAS #define M68K_CACHEOPS_MACHDEP_TBIAU #endif #endif /* _HP300_CPU_H_ */
