a7d0570e67
state into global and per-CPU scheduler state: - Global state: sched_qs (run queues), sched_whichqs (bitmap of non-empty run queues), sched_slpque (sleep queues). NOTE: These may collectively move into a struct schedstate at some point in the future. - Per-CPU state, struct schedstate_percpu: spc_runtime (time process on this CPU started running), spc_flags (replaces struct proc's p_schedflags), and spc_curpriority (usrpri of processes on this CPU). - Every platform must now supply a struct cpu_info and a curcpu() macro. Simplify existing cpu_info declarations where appropriate. - All references to per-CPU scheduler state now made through curcpu(). NOTE: this will likely be adjusted in the future after further changes to struct proc are made. Tested on i386 and Alpha. Changes are mostly mechanical, but apologies in advance if it doesn't compile on a particular platform.
297 lines
8.1 KiB
C
297 lines
8.1 KiB
C
/* $NetBSD: cpu.h,v 1.33 2000/05/26 21:19:34 thorpej Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: cpu.h 1.16 91/03/25$
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*
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* @(#)cpu.h 7.7 (Berkeley) 6/27/91
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*/
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#ifndef _MACHINE_CPU_H_
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#define _MACHINE_CPU_H_
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/*
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* Exported definitions unique to atari/68k cpu support.
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*/
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#if defined(_KERNEL) && !defined(_LKM)
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#include "opt_lockdebug.h"
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#endif
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/*
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* Get common m68k CPU definitions.
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*/
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#include <m68k/cpu.h>
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#define M68K_MMU_MOTOROLA
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#include <sys/sched.h>
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struct cpu_info {
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struct schedstate_percpu ci_schedstate; /* scheduler state */
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#if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
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u_long ci_spin_locks; /* # of spin locks held */
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u_long ci_simple_locks; /* # of simple locks held */
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#endif
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};
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#ifdef _KERNEL
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extern struct cpu_info cpu_info_store;
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#define curcpu() (&cpu_info_store)
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/*
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* definitions of cpu-dependent requirements
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* referenced in generic code
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*/
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#define cpu_swapin(p) /* nothing */
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#define cpu_wait(p) /* nothing */
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#define cpu_swapout(p) /* nothing */
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#define cpu_number() 0
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/*
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* Arguments to hardclock and gatherstats encapsulate the previous
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* machine state in an opaque clockframe. On the hp300, we use
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* what the hardware pushes on an interrupt (frame format 0).
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*/
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struct clockframe {
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u_int cf_regs[4]; /* d0,d1,a0,a1 (see locore.s) */
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u_short cf_sr; /* sr at time of interrupt */
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u_long cf_pc; /* pc at time of interrupt */
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u_short cf_vo; /* vector offset (4-word frame) */
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};
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#define CLKF_USERMODE(framep) (((framep)->cf_sr & PSL_S) == 0)
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#define CLKF_BASEPRI(framep) (((framep)->cf_sr & PSL_IPL) == 0)
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#define CLKF_PC(framep) ((framep)->cf_pc)
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#if 0
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/* We would like to do it this way... */
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#define CLKF_INTR(framep) (((framep)->cf_sr & PSL_M) == 0)
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#else
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/* but until we start using PSL_M, we have to do this instead */
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#define CLKF_INTR(framep) (0) /* XXX */
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#endif
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/*
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* Preempt the current process if in interrupt from user mode,
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* or after the current trap/syscall if in system mode.
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*/
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#define need_resched() {want_resched = 1; setsoftast();}
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/*
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* Give a profiling tick to the current process from the softclock
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* interrupt. On hp300, request an ast to send us through trap(),
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* marking the proc as needing a profiling tick.
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*/
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#define profile_tick(p, framep) ((p)->p_flag |= P_OWEUPC, setsoftast())
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#define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast())
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/*
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* Notify the current process (p) that it has a signal pending,
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* process as soon as possible.
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*/
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#define signotify(p) setsoftast()
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#define setsoftast() (astpending = 1)
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extern int astpending; /* need trap before returning to user mode */
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extern int want_resched; /* resched() was called */
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#endif /* _KERNEL */
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/* include support for software interrupts */
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#include <machine/mtpr.h>
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/*
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* The rest of this should probably be moved to ../atari/ataricpu.h,
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* although some of it could probably be put into generic 68k headers.
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*/
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#define BASEPRI(sr) ((sr & PSL_IPL) == 0)
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/*
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* Values for machineid.
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*/
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#define ATARI_68000 1 /* 68000 CPU */
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#define ATARI_68010 (1<<1) /* 68010 CPU */
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#define ATARI_68020 (1L<<2) /* 68020 CPU */
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#define ATARI_68030 (1L<<3) /* 68030 CPU */
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#define ATARI_68040 (1L<<4) /* 68040 CPU */
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#define ATARI_68060 (1L<<6) /* 68060 CPU */
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#define ATARI_TT (1L<<11)
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#define ATARI_FALCON (1L<<12)
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#define ATARI_HADES (1L<<13)
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#define ATARI_CLKBROKEN (1L<<16)
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#define ATARI_ANYCPU (ATARI_68000|ATARI_68010|ATARI_68020|ATARI_68030 \
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|ATARI_68040|ATARI_68060)
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#define ATARI_ANYMACH (ATARI_TT|ATARI_FALCON|ATARI_HADES)
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#ifdef _KERNEL
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extern int machineid;
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#endif
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/*
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* CTL_MACHDEP definitions.
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*/
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#define CPU_CONSDEV 1 /* dev_t: console terminal device */
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#define CPU_MAXID 2 /* number of valid machdep ids */
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#define CTL_MACHDEP_NAMES { \
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{ 0, 0 }, \
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{ "console_device", CTLTYPE_STRUCT }, \
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}
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#ifdef _KERNEL
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/*
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* Prototypes from atari_init.c
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*/
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int cpu_dump __P((int (*)(dev_t, daddr_t, caddr_t, size_t), daddr_t *));
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int cpu_dumpsize __P((void));
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/*
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* Prototypes from autoconf.c
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*/
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void config_console __P((void));
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/*
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* Prototypes from clock.c
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*/
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long clkread __P((void));
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/*
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* Prototypes from disksubr.c
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*/
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struct buf;
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struct disklabel;
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int bounds_check_with_label __P((struct buf *, struct disklabel *, int));
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/*
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* Prototypes from fpu.c
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*/
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char *fpu_describe __P((int));
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int fpu_probe __P((void));
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/*
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* Prototypes from vm_machdep.c
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*/
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int badbaddr __P((caddr_t, int));
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void consinit __P((void));
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void dumpconf __P((void));
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paddr_t kvtop __P((caddr_t));
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void physaccess __P((caddr_t, caddr_t, int, int));
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void physunaccess __P((caddr_t, int));
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void setredzone __P((u_int *, caddr_t));
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/*
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* Prototypes from locore.s
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*/
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struct fpframe;
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struct user;
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struct pcb;
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void clearseg __P((paddr_t));
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void doboot __P((void));
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void loadustp __P((int));
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void m68881_save __P((struct fpframe *));
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void m68881_restore __P((struct fpframe *));
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void physcopyseg __P((paddr_t, paddr_t));
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u_int probeva __P((u_int, u_int));
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void proc_trampoline __P((void));
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void savectx __P((struct pcb *));
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int suline __P((caddr_t, caddr_t));
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void switch_exit __P((struct proc *));
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void DCIAS __P((vaddr_t));
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void DCIA __P((void));
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void DCIS __P((void));
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void DCIU __P((void));
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void ICIA __P((void));
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void ICPA __P((void));
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void PCIA __P((void));
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void TBIA __P((void));
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void TBIS __P((vaddr_t));
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void TBIAS __P((void));
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void TBIAU __P((void));
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#if defined(M68040) || defined(M68060)
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void DCFA __P((void));
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void DCFP __P((paddr_t));
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void DCFL __P((paddr_t));
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void DCPL __P((paddr_t));
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void DCPP __P((paddr_t));
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void ICPL __P((paddr_t));
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void ICPP __P((paddr_t));
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#endif
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/*
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* Prototypes from machdep.c:
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*/
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typedef void (*si_farg)(void *, void *); /* XXX */
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void add_sicallback __P((si_farg, void *, void *));
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void rem_sicallback __P((si_farg));
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void cpu_startup __P((void));
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void dumpsys __P((void));
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vaddr_t reserve_dumppages __P((vaddr_t));
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void softint __P((void));
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/*
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* Prototypes from nvram.c:
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*/
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struct uio;
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int nvram_uio __P((struct uio *));
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/*
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* Prototypes from sys_machdep.c:
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*/
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int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *));
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int dma_cachectl __P((caddr_t, int));
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/*
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* Prototypes from pci_machdep.c
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*/
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void init_pci_bus __P((void));
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/*
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* Prototypes from trap.c:
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*/
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void child_return __P((void *));
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#endif /* _KERNEL */
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#endif /* !_MACHINE_CPU_H_ */
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