NetBSD-5.0.2/sys/arch/vax/include/cpu.h
/* $NetBSD: cpu.h,v 1.85 2008/03/11 05:34:02 matt Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden
* All rights reserved.
*
* 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 at Ludd, University of Lule}
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#ifndef _VAX_CPU_H_
#define _VAX_CPU_H_
#if defined(_KERNEL_OPT)
#include "opt_multiprocessor.h"
#include "opt_lockdebug.h"
#endif
#define CPU_PRINTFATALTRAPS 1
#define CPU_CONSDEV 2
#define CPU_BOOTED_DEVICE 3
#define CPU_BOOTED_KERNEL 4
#define CPU_MAXID 5
#ifdef _KERNEL
#include <sys/cdefs.h>
#include <sys/queue.h>
#include <sys/device.h>
#include <sys/cpu_data.h>
#include <machine/mtpr.h>
#include <machine/pcb.h>
#include <machine/uvax.h>
#include <machine/psl.h>
#define enablertclock()
/*
* All cpu-dependent info is kept in this struct. Pointer to the
* struct for the current cpu is set up in locore.c.
*/
struct cpu_info;
struct cpu_dep {
void (*cpu_steal_pages)(void); /* pmap init before mm is on */
int (*cpu_mchk)(void *); /* Machine check handling */
void (*cpu_memerr)(void); /* Memory subsystem errors */
/* Autoconfiguration */
void (*cpu_conf)(void);
int (*cpu_gettime)(volatile struct timeval *);
/* Read cpu clock time */
void (*cpu_settime)(volatile struct timeval *);
/* Write system time to cpu */
short cpu_vups; /* speed of cpu */
short cpu_scbsz; /* (estimated) size of SCB */
void (*cpu_halt)(void); /* Cpu dependent halt call */
void (*cpu_reboot)(int); /* Cpu dependent reboot call */
void (*cpu_clrf)(void); /* Clear cold/warm start flags */
const char * const *cpu_devs; /* mainbus devices */
void (*cpu_attach_cpu)(device_t); /* print CPU info */
void (*cpu_subconf)(device_t, void *, cfprint_t); /* attach dep. dev */
int cpu_flags;
void (*cpu_badaddr)(void); /* cpu-specific badaddr() */
};
#if defined(MULTIPROCESSOR)
/*
* All cpu-dependent calls for multicpu systems goes here.
*/
struct cpu_mp_dep {
void (*cpu_startslave)(struct cpu_info *);
void (*cpu_send_ipi)(struct cpu_info *);
void (*cpu_cnintr)(void);
};
/*
* NOTE: This is not bit mask, this is bit _number_.
*/
#define IPI_START_CNTX 1 /* Start console transmitter, proc out */
#define IPI_SEND_CNCHAR 2 /* Write char to console, kernel printf */
#define IPI_RUNNING 3 /* This CPU just started to run */
#define IPI_TBIA 4 /* Flush the TLB */
#define IPI_DDB 5 /* Jump into the DDB loop */
#define IPI_DEST_MASTER -1 /* Destination is mastercpu */
#define IPI_DEST_ALL -2 /* Broadcast */
extern const struct cpu_mp_dep *mp_dep_call;
#endif /* defined(MULTIPROCESSOR) */
#define CPU_RAISEIPL 1 /* Must raise IPL until intr is handled */
extern const struct cpu_dep *dep_call;
/* Holds pointer to current CPU struct. */
struct clockframe {
int pc;
int ps;
};
struct cpu_info {
/*
* Public members.
*/
struct cpu_data ci_data; /* MI per-cpu data */
struct device *ci_dev; /* device struct for this cpu */
int ci_mtx_oldspl; /* saved spl */
int ci_mtx_count; /* negative count of mutexes */
int ci_cpuid; /* h/w specific cpu id */
int ci_want_resched; /* Should change process */
/*
* Private members.
*/
#if defined(__HAVE_FAST_SOFTINTS)
lwp_t *ci_softlwps[SOFTINT_COUNT];
#endif
vaddr_t ci_istack; /* Interrupt stack location */
const char *ci_cpustr;
int ci_slotid; /* cpu slot */
#if defined(MULTIPROCESSOR)
struct lwp *ci_curlwp; /* current lwp (for other cpus) */
volatile int ci_flags; /* See below */
long ci_ipimsgs; /* Sent IPI bits */
struct trapframe *ci_ddb_regs; /* Used by DDB */
SIMPLEQ_ENTRY(cpu_info) ci_next; /* next cpu_info */
#endif
};
#define CI_MASTERCPU 1 /* Set if master CPU */
#define CI_RUNNING 2 /* Set when a slave CPU is running */
#define CI_STOPPED 4 /* Stopped (in debugger) */
extern int cpu_printfataltraps;
#define curcpu() (curlwp->l_cpu + 0)
#define curlwp ((struct lwp *)mfpr(PR_SSP))
#define cpu_number() (curcpu()->ci_cpuid)
#define cpu_need_resched(ci, flags) \
do { \
(ci)->ci_want_resched = 1; \
mtpr(AST_OK,PR_ASTLVL); \
} while (/*CONSTCOND*/ 0)
#define cpu_proc_fork(x, y) do { } while (/*CONSCOND*/0)
#define cpu_lwp_free(l, f) do { } while (/*CONSCOND*/0)
#define cpu_lwp_free2(l) do { } while (/*CONSCOND*/0)
#define cpu_idle() do { } while (/*CONSCOND*/0)
static inline bool
cpu_intr_p(void)
{
register_t psl;
__asm("movpsl %0" : "=g"(psl));
return (psl & PSL_IS) != 0;
}
#if defined(MULTIPROCESSOR)
#define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CI_MASTERCPU)
#define CPU_INFO_ITERATOR int
#define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = SIMPLEQ_FIRST(&cpus); \
ci != NULL; \
ci = SIMPLEQ_NEXT(ci, ci_next)
extern SIMPLEQ_HEAD(cpu_info_qh, cpu_info) cpus;
extern char vax_mp_tramp;
#endif
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define cpu_signotify(l) mtpr(AST_OK,PR_ASTLVL)
/*
* 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 cpu_need_proftick(l) do { (l)->l_pflag |= LP_OWEUPC; mtpr(AST_OK,PR_ASTLVL); } while (/*CONSTCOND*/ 0)
/*
* This defines the I/O device register space size in pages.
*/
#define IOSPSZ ((64*1024) / VAX_NBPG) /* 64k == 128 pages */
struct device;
struct buf;
struct pte;
#include <sys/lwp.h>
/* Some low-level prototypes */
#if defined(MULTIPROCESSOR)
void cpu_slavesetup(device_t, int);
void cpu_boot_secondary_processors(void);
void cpu_send_ipi(int, int);
void cpu_handle_ipi(void);
#endif
int badaddr(volatile void *, int);
void dumpconf(void);
void dumpsys(void);
void swapconf(void);
void disk_printtype(int, int);
void disk_reallymapin(struct buf *, struct pte *, int, int);
vaddr_t vax_map_physmem(paddr_t, size_t);
void vax_unmap_physmem(vaddr_t, size_t);
void ioaccess(vaddr_t, paddr_t, size_t);
void iounaccess(vaddr_t, size_t);
void findcpu(void);
#ifdef DDB
int kdbrint(int);
#endif
#endif /* _KERNEL */
#ifdef _STANDALONE
void findcpu(void);
#endif
#endif /* _VAX_CPU_H_ */