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.
290 lines
8.8 KiB
C
290 lines
8.8 KiB
C
/* $NetBSD: cpu.h,v 1.34 2000/05/26 21:19:42 thorpej Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1990, 1993
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* The Regents of the University of California. 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 8.4 (Berkeley) 1/5/94
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*/
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#ifndef _HP300_CPU_H_
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#define _HP300_CPU_H_
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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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* Exported definitions unique to hp300/68k cpu support.
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*/
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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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/*
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* Get interrupt glue.
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*/
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#include <machine/intr.h>
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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. One 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_short sr; /* sr at time of interrupt */
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u_long pc; /* pc at time of interrupt */
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u_short vo; /* vector offset (4-word frame) */
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};
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#define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0)
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#define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)
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#define CLKF_PC(framep) ((framep)->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)->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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extern int want_resched; /* resched() was called */
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#define need_resched() { want_resched++; aston(); }
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/*
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* Give a profiling tick to the current process when the user profiling
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* buffer pages are invalid. On the hp300, request an ast to send us
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* through trap, marking the proc as needing a profiling tick.
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*/
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#define need_proftick(p) { (p)->p_flag |= P_OWEUPC; aston(); }
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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) aston()
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extern int astpending; /* need to trap before returning to user mode */
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#define aston() (astpending++)
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#endif /* _KERNEL */
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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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/*
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* The rest of this should probably be moved to <machine/hp300spu.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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#ifdef _KERNEL
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extern char *intiobase, *intiolimit;
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extern void (*vectab[]) __P((void));
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struct frame;
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struct fpframe;
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struct pcb;
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/* locore.s functions */
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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 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)
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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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int suline __P((caddr_t, caddr_t));
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void savectx __P((struct pcb *));
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void switch_exit __P((struct proc *));
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void proc_trampoline __P((void));
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void loadustp __P((int));
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void doboot __P((void))
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__attribute__((__noreturn__));
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void ecacheon __P((void));
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void ecacheoff __P((void));
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/* clock.c functions */
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void hp300_calibrate_delay __P((void));
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/* machdep.c functions */
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int badaddr __P((caddr_t));
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int badbaddr __P((caddr_t));
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/* sys_machdep.c functions */
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int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *));
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/* vm_machdep.c functions */
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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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int kvtop __P((caddr_t));
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/* trap.c functions */
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void child_return __P((void *));
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/* what is this supposed to do? i.e. how is it different than startrtclock? */
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#define enablertclock()
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#endif
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/* physical memory sections */
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#define ROMBASE (0x00000000)
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#define INTIOBASE (0x00400000)
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#define INTIOTOP (0x00600000)
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#define EXTIOBASE (0x00600000)
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#define EXTIOTOP (0x20000000)
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#define MAXADDR (0xFFFFF000)
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/*
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* Internal IO space:
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*
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* Ranges from 0x400000 to 0x600000 (IIOMAPSIZE).
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*
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* Internal IO space is mapped in the kernel from ``intiobase'' to
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* ``intiolimit'' (defined in locore.s). Since it is always mapped,
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* conversion between physical and kernel virtual addresses is easy.
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*/
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#define ISIIOVA(va) \
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((char *)(va) >= intiobase && (char *)(va) < intiolimit)
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#define IIOV(pa) ((int)(pa)-INTIOBASE+(int)intiobase)
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#define IIOP(va) ((int)(va)-(int)intiobase+INTIOBASE)
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#define IIOPOFF(pa) ((int)(pa)-INTIOBASE)
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#define IIOMAPSIZE btoc(INTIOTOP-INTIOBASE) /* 2mb */
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/*
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* External IO space:
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*
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* DIO ranges from select codes 0-63 at physical addresses given by:
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* 0x600000 + (sc - 32) * 0x10000
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* DIO cards are addressed in the range 0-31 [0x600000-0x800000) for
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* their control space and the remaining areas, [0x200000-0x400000) and
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* [0x800000-0x1000000), are for additional space required by a card;
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* e.g. a display framebuffer.
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*
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* DIO-II ranges from select codes 132-255 at physical addresses given by:
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* 0x1000000 + (sc - 132) * 0x400000
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* The address range of DIO-II space is thus [0x1000000-0x20000000).
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*
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* DIO/DIO-II space is too large to map in its entirety, instead devices
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* are mapped into kernel virtual address space allocated from a range
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* of EIOMAPSIZE pages (vmparam.h) starting at ``extiobase''.
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*/
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#define DIOBASE (0x600000)
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#define DIOTOP (0x1000000)
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#define DIOCSIZE (0x10000)
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#define DIOIIBASE (0x01000000)
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#define DIOIITOP (0x20000000)
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#define DIOIICSIZE (0x00400000)
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/*
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* HP MMU
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*/
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#define MMUBASE IIOPOFF(0x5F4000)
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#define MMUSSTP 0x0
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#define MMUUSTP 0x4
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#define MMUTBINVAL 0x8
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#define MMUSTAT 0xC
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#define MMUCMD MMUSTAT
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#define MMU_UMEN 0x0001 /* enable user mapping */
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#define MMU_SMEN 0x0002 /* enable supervisor mapping */
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#define MMU_CEN 0x0004 /* enable data cache */
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#define MMU_BERR 0x0008 /* bus error */
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#define MMU_IEN 0x0020 /* enable instruction cache */
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#define MMU_FPE 0x0040 /* enable 68881 FP coprocessor */
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#define MMU_WPF 0x2000 /* write protect fault */
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#define MMU_PF 0x4000 /* page fault */
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#define MMU_PTF 0x8000 /* page table fault */
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#define MMU_FAULT (MMU_PTF|MMU_PF|MMU_WPF|MMU_BERR)
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#define MMU_ENAB (MMU_UMEN|MMU_SMEN|MMU_IEN|MMU_FPE)
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#endif /* _HP300_CPU_H_ */
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