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/* $NetBSD: cpu.h,v 1.83 2019/11/23 19:40:34 ad Exp $ */
/*
* 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. 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 7.7 (Berkeley) 6/27/91
*/
#ifndef _MACHINE_CPU_H_
#define _MACHINE_CPU_H_
#if defined(_KERNEL_OPT)
#include "opt_lockdebug.h"
#endif
/*
* Get common m68k CPU definitions.
*/
#include <m68k/cpu.h>
#if defined(_KERNEL)
/*
* Exported definitions unique to amiga/68k cpu support.
*/
#define M68K_MMU_MOTOROLA
extern volatile unsigned int interrupt_depth;
/*
* Arguments to hardclock and gatherstats encapsulate the previous
* machine state in an opaque clockframe. On the amiga, 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)
#define CLKF_INTR(framep) (interrupt_depth > 1)
/*
* 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,l,flags) do { \
__USE(flags); \
setsoftast(); \
} while (/*CONSTCOND*/0)
/*
* Give a profiling tick to the current process from the softclock
* interrupt. On the amiga, request an ast to send us through trap(),
* marking the proc as needing a profiling tick.
*/
#define profile_tick(l, framep) ((l)->l_pflag |= LP_OWEUPC, setsoftast())
#define cpu_need_proftick(l) ((l)->l_pflag |= LP_OWEUPC, setsoftast())
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define cpu_signotify(l) setsoftast()
extern int astpending; /* need trap before returning to user mode */
#define setsoftast() (astpending = 1)
/*
* The rest of this should probably be moved to ../amiga/amigacpu.h,
* although some of it could probably be put into generic 68k headers.
*/
/* values for machineid (happen to be AFF_* settings of AttnFlags) */
#define AMIGA_68020 (1L<<1)
#define AMIGA_68030 (1L<<2)
#define AMIGA_68040 (1L<<3)
#define AMIGA_68881 (1L<<4)
#define AMIGA_68882 (1L<<5)
#define AMIGA_FPU40 (1L<<6)
#define AMIGA_68060 (1L<<7)
extern int machineid;
/*
* Prototypes from amiga_init.c
*/
void *alloc_z2mem(long);
/*
* Prototypes from autoconf.c
*/
int is_a600(void);
int is_a1200(void);
int is_a3000(void);
int is_a4000(void);
#ifdef DRACO
#define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0)
#endif
#ifdef DRACO
/*
* Prototypes from kbd.c
*/
void drkbdintr(void);
/*
* Prototypes from drsc.c
*/
void drsc_handler(void);
#endif
/*
* Prototypes from locore.s
*/
void clearseg(vm_offset_t);
void doboot(void) __attribute__((__noreturn__));
void loadustp(int);
void physcopyseg(vm_offset_t, vm_offset_t);
u_int probeva(u_int, u_int);
/*
* Prototypes from machdep.c
*/
int badaddr(void *);
int badbaddr(void *);
void bootsync(void);
/*
* Prototypes from pmap.c:
*/
void pmap_bootstrap(vm_offset_t, vm_offset_t);
#endif /* _KERNEL */
/*
* Reorder protection when accessing device registers.
*/
#define amiga_membarrier()
/*
* Finish all bus operations and flush pipelines.
*/
#define amiga_cpu_sync() __asm volatile ("nop")
#endif /* !_MACHINE_CPU_H_ */
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