216 lines
6.8 KiB
C
216 lines
6.8 KiB
C
/* $NetBSD: cpu.h,v 1.61 2001/06/14 22:56:58 thorpej Exp $ */
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/*
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* Copyright (c) 1994 Ludd, University of Lule}, Sweden
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* All rights reserved.
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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 at Ludd, University of Lule}
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _VAX_CPU_H_
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#define _VAX_CPU_H_
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#if defined(_KERNEL_OPT)
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#include "opt_multiprocessor.h"
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#include "opt_lockdebug.h"
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#endif
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#ifdef _KERNEL
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#include <sys/cdefs.h>
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#include <sys/device.h>
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#include <sys/lock.h>
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#include <sys/sched.h>
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#include <machine/mtpr.h>
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#include <machine/pcb.h>
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#include <machine/uvax.h>
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#include <machine/psl.h>
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#define enablertclock()
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#define cpu_wait(p)
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#define cpu_swapout(p)
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/*
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* All cpu-dependent info is kept in this struct. Pointer to the
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* struct for the current cpu is set up in locore.c.
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*/
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struct cpu_info;
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struct cpu_dep {
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void (*cpu_steal_pages)(void); /* pmap init before mm is on */
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int (*cpu_mchk)(caddr_t); /* Machine check handling */
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void (*cpu_memerr)(void); /* Memory subsystem errors */
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/* Autoconfiguration */
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void (*cpu_conf)(void);
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int (*cpu_clkread)(time_t); /* Read cpu clock time */
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void (*cpu_clkwrite)(void); /* Write system time to cpu */
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short cpu_vups; /* speed of cpu */
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short cpu_scbsz; /* (estimated) size of system control block */
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void (*cpu_halt)(void); /* Cpu dependent halt call */
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void (*cpu_reboot)(int); /* Cpu dependent reboot call */
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void (*cpu_clrf)(void); /* Clear cold/warm start flags */
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void (*cpu_subconf)(struct device *);/*config cpu dep. devs */
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int cpu_flags;
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void (*cpu_badaddr)(void); /* cpu-specific badaddr() */
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};
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#if defined(MULTIPROCESSOR)
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/*
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* All cpu-dependent calls for multicpu systems goes here.
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*/
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struct cpu_mp_dep {
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void (*cpu_startslave)(struct device *, struct cpu_info *);
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void (*cpu_send_ipi)(struct device *dest);
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void (*cpu_cnintr)(void);
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};
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/*
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* NOTE: This is not bit mask, this is bit _number_.
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*/
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#define IPI_START_CNTX 1 /* Start console transmitter, proc out */
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#define IPI_SEND_CNCHAR 2 /* Write char to console, kernel printf */
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#define IPI_RUNNING 3 /* This CPU just started to run */
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#define IPI_TBIA 4 /* Flush the TLB */
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#define IPI_DDB 5 /* Jump into the DDB loop */
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#define IPI_DEST_MASTER -1 /* Destination is mastercpu */
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#define IPI_DEST_ALL -2 /* Broadcast */
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extern struct cpu_mp_dep *mp_dep_call;
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#endif /* defined(MULTIPROCESSOR) */
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#define CPU_RAISEIPL 1 /* Must raise IPL until intr is handled */
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extern struct cpu_dep *dep_call; /* Holds pointer to current CPU struct. */
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struct clockframe {
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int pc;
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int ps;
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};
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struct cpu_info {
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/*
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* Public members.
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*/
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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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struct proc *ci_curproc; /* current owner of the processor */
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/*
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* Private members.
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*/
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int ci_want_resched; /* Should change process */
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struct device *ci_dev; /* device struct for this cpu */
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long ci_exit; /* Page to use while exiting */
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#if defined(MULTIPROCESSOR)
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struct pcb *ci_pcb; /* Idle PCB for this CPU */
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vaddr_t ci_istack; /* Interrupt stack location */
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int ci_flags; /* See below */
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long ci_ipimsgs; /* Sent IPI bits */
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struct trapframe *ci_ddb_regs; /* Used by DDB */
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#endif
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};
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#define CI_MASTERCPU 1 /* Set if master CPU */
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#define CI_RUNNING 2 /* Set when a slave CPU is running */
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#define CI_STOPPED 4 /* Stopped (in debugger) */
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#if defined(MULTIPROCESSOR)
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/*
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* "helper" struct. All multicpu systems must have the first two field
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* of its cpu softc like this. (used in multicpu.c).
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*/
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struct cpu_mp_softc {
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struct device sc_dev;
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struct cpu_info sc_ci;
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};
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#endif /* defined(MULTIPROCESSOR) */
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#define curcpu() ((struct cpu_info *)mfpr(PR_SSP))
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#define curproc (curcpu()->ci_curproc)
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#define cpu_number() (curcpu()->ci_dev->dv_unit)
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#define ci_cpuid ci_dev->dv_unit
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#define need_resched(ci) {(ci)->ci_want_resched++; mtpr(AST_OK,PR_ASTLVL); }
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#if defined(MULTIPROCESSOR)
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#define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CI_MASTERCPU)
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extern char tramp;
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#endif
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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) mtpr(AST_OK,PR_ASTLVL);
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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; mtpr(AST_OK,PR_ASTLVL); }
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/*
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* This defines the I/O device register space size in pages.
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*/
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#define IOSPSZ ((64*1024) / VAX_NBPG) /* 64k == 128 pages */
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struct device;
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/* Some low-level prototypes */
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#if defined(MULTIPROCESSOR)
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void cpu_slavesetup(struct device *);
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void cpu_boot_secondary_processors(void);
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void cpu_send_ipi(int, int);
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void cpu_handle_ipi(void);
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#endif
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int badaddr(caddr_t, int);
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void cpu_swapin(struct proc *);
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void dumpconf(void);
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void dumpsys(void);
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void swapconf(void);
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void disk_printtype(int, int);
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void disk_reallymapin(struct buf *, struct pte *, int, int);
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vaddr_t vax_map_physmem(paddr_t, int);
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void vax_unmap_physmem(vaddr_t, int);
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void ioaccess(vaddr_t, paddr_t, int);
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void iounaccess(vaddr_t, int);
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void findcpu(void);
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int getmajor(void *);
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#ifdef DDB
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int kdbrint(int);
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#endif
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#endif /* _KERNEL */
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#ifdef _STANDALONE
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void findcpu(void);
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#endif
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#endif /* _VAX_CPU_H_ */
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