NetBSD/sys/arch/mvme68k/include/cpu.h

218 lines
6.6 KiB
C

/* $NetBSD: cpu.h,v 1.11 1999/02/26 22:16:35 is 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 <m68k/cpu.h>
#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.
*/
extern int want_resched; /* resched() was called */
#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()
extern int astpending; /* need to trap before returning to user mode */
#define aston() (astpending++)
/*
* 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 int cpuspeed;
extern char *intiobase, *intiolimit;
extern u_int intiobase_phys, intiotop_phys;
extern void *ether_data_buff; /* These two will go when bus_dma */
extern u_long ether_data_buff_size; /* support is added. */
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));
void child_return __P((void *));
void myetheraddr __P((u_char *));
/* Prototypes from sys_machdep.c: */
int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *));
int dma_cachectl __P((caddr_t, int));
/* physical memory sections for mvme147 */
#define INTIOBASE147 (0xfffe0000u)
#define INTIOTOP147 (0xfffe5000u)
/* ditto for mvme1[67]7 */
#define INTIOBASE167 (0xfff40000u)
#define INTIOTOP167 (0xfffd0000u)
/*
* 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 IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys)
#define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys)
#endif /* _KERNEL */