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NetBSD/sys/arch/news68k/include/cpu.h

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/* $NetBSD: cpu.h,v 1.17 2004/01/04 11:33:30 jdolecek Exp $ */
/*
* 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
*/
/*
* Copyright (c) 1988 University of Utah.
*
* 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
*/
#ifndef _NEWS68K_CPU_H_
#define _NEWS68K_CPU_H_
/*
* Exported definitions unique to news68k cpu support.
*/
#if defined(_KERNEL_OPT)
#include "opt_lockdebug.h"
#endif
/*
* Get common m68k CPU definitions.
*/
#include <m68k/cpu.h>
/*
* 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 <machine/intr.h>
#include <sys/sched.h>
struct cpu_info {
struct schedstate_percpu ci_schedstate; /* scheduler state */
#if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
u_long ci_spin_locks; /* # of spin locks held */
u_long ci_simple_locks; /* # of simple locks held */
#endif
};
#ifdef _KERNEL
extern struct cpu_info cpu_info_store;
#define curcpu() (&cpu_info_store)
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_swapin(p) /* nothing */
#define cpu_swapout(p) /* nothing */
#define cpu_number() 0
void cpu_proc_fork(struct proc *, struct proc *);
/*
* Arguments to hardclock and gatherstats encapsulate the previous
* machine state in an opaque clockframe. One the hp300, 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.
*/
extern int want_resched; /* resched() was called */
#define need_resched(ci) do { want_resched++; aston(); } while(0)
/*
* 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) do { (p)->p_flag |= P_OWEUPC; aston(); } while(0)
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) 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(0)
#endif /* _KERNEL */
/*
* 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
#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);
struct frame;
struct fpframe;
struct pcb;
/* locore.s functions */
void m68881_save(struct fpframe *);
void m68881_restore(struct fpframe *);
int suline(caddr_t, caddr_t);
void savectx(struct pcb *);
void switch_exit(struct lwp *);
void switch_lwp_exit(struct lwp *);
void proc_trampoline(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(caddr_t, int);
int badbaddr(caddr_t);
/* sys_machdep.c functions */
int cachectl1(unsigned long, vaddr_t, size_t, struct proc *);
/* vm_machdep.c functions */
void physaccess(caddr_t, caddr_t, int, int);
void physunaccess(caddr_t, int);
int kvtop(caddr_t);
#endif
/* physical memory sections */
#define ROMBASE (0xe0000000)
#define INTIOBASE1700 (0xe0c00000)
#define INTIOTOP1700 (0xe1d00000) /* XXX */
#define EXTIOBASE1700 (0xf0f00000)
#define EXTIOTOP1700 (0xf1000000) /* XXX */
#define INTIOBASE1200 (0xe1000000)
#define INTIOTOP1200 (0xe1d00000) /* XXX */
#define EXTIOBASE1200 (0xe4000000)
#define EXTIOTOP1200 (0xe4020000) /* XXX */
#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_ */
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