293 lines
10 KiB
C
293 lines
10 KiB
C
/* $NetBSD: cpu.h,v 1.60 2003/02/05 12:16:43 nakayama Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
|
|
* NASA Ames Research Center, and by Charles M. Hannum.
|
|
*
|
|
* 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 by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1988 University of Utah.
|
|
* Copyright (c) 1982, 1990, 1993
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. 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 8.4 (Berkeley) 1/5/94
|
|
*/
|
|
|
|
#ifndef _ALPHA_CPU_H_
|
|
#define _ALPHA_CPU_H_
|
|
|
|
#if defined(_KERNEL_OPT)
|
|
#include "opt_multiprocessor.h"
|
|
#include "opt_lockdebug.h"
|
|
#endif
|
|
|
|
/*
|
|
* Exported definitions unique to Alpha cpu support.
|
|
*/
|
|
|
|
#include <machine/alpha_cpu.h>
|
|
|
|
#ifdef _KERNEL
|
|
#include <sys/sched.h>
|
|
#include <machine/frame.h>
|
|
|
|
/*
|
|
* Machine check information.
|
|
*/
|
|
struct mchkinfo {
|
|
__volatile int mc_expected; /* machine check is expected */
|
|
__volatile int mc_received; /* machine check was received */
|
|
};
|
|
|
|
struct cpu_info {
|
|
/*
|
|
* Public members.
|
|
*/
|
|
struct schedstate_percpu ci_schedstate; /* scheduler state */
|
|
#if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
|
|
u_long ci_spin_locks; /* # of spin locks held */
|
|
u_long ci_simple_locks; /* # of simple locks held */
|
|
#endif
|
|
struct lwp *ci_curlwp; /* current owner of the processor */
|
|
struct cpu_info *ci_next; /* next cpu_info structure */
|
|
|
|
/*
|
|
* Private members.
|
|
*/
|
|
struct mchkinfo ci_mcinfo; /* machine check info */
|
|
cpuid_t ci_cpuid; /* our CPU ID */
|
|
struct lwp *ci_fpcurlwp; /* current owner of the FPU */
|
|
paddr_t ci_curpcb; /* PA of current HW PCB */
|
|
struct pcb *ci_idle_pcb; /* our idle PCB */
|
|
paddr_t ci_idle_pcb_paddr; /* PA of idle PCB */
|
|
struct cpu_softc *ci_softc; /* pointer to our device */
|
|
u_long ci_want_resched; /* preempt current process */
|
|
u_long ci_intrdepth; /* interrupt trap depth */
|
|
struct trapframe *ci_db_regs; /* registers for debuggers */
|
|
|
|
/*
|
|
* Variables used by cc_microtime().
|
|
*/
|
|
struct timeval ci_cc_time;
|
|
long ci_cc_cc;
|
|
long ci_cc_ms_delta;
|
|
long ci_cc_denom;
|
|
|
|
#if defined(MULTIPROCESSOR)
|
|
__volatile u_long ci_flags; /* flags; see below */
|
|
__volatile u_long ci_ipis; /* interprocessor interrupts pending */
|
|
#endif
|
|
};
|
|
|
|
#define CPUF_PRIMARY 0x01 /* CPU is primary CPU */
|
|
#define CPUF_PRESENT 0x02 /* CPU is present */
|
|
#define CPUF_RUNNING 0x04 /* CPU is running */
|
|
#define CPUF_PAUSED 0x08 /* CPU is paused */
|
|
#define CPUF_FPUSAVE 0x10 /* CPU is currently in fpusave_cpu() */
|
|
|
|
extern struct cpu_info cpu_info_primary;
|
|
extern struct cpu_info *cpu_info_list;
|
|
|
|
#define CPU_INFO_ITERATOR int
|
|
#define CPU_INFO_FOREACH(cii, ci) cii = 0, ci = cpu_info_list; \
|
|
ci != NULL; ci = ci->ci_next
|
|
|
|
#if defined(MULTIPROCESSOR)
|
|
extern __volatile u_long cpus_running;
|
|
extern __volatile u_long cpus_paused;
|
|
extern struct cpu_info *cpu_info[];
|
|
|
|
#define curcpu() ((struct cpu_info *)alpha_pal_rdval())
|
|
#define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CPUF_PRIMARY)
|
|
|
|
void cpu_boot_secondary_processors(void);
|
|
|
|
void cpu_pause_resume(unsigned long, int);
|
|
void cpu_pause_resume_all(int);
|
|
#else /* ! MULTIPROCESSOR */
|
|
#define curcpu() (&cpu_info_primary)
|
|
#endif /* MULTIPROCESSOR */
|
|
|
|
#define curlwp curcpu()->ci_curlwp
|
|
#define fpcurlwp curcpu()->ci_fpcurlwp
|
|
#define curpcb curcpu()->ci_curpcb
|
|
|
|
/*
|
|
* definitions of cpu-dependent requirements
|
|
* referenced in generic code
|
|
*/
|
|
#define cpu_wait(p) /* nothing */
|
|
#define cpu_number() alpha_pal_whami()
|
|
#define cpu_proc_fork(p1, p2) /* nothing */
|
|
|
|
/*
|
|
* Arguments to hardclock and gatherstats encapsulate the previous
|
|
* machine state in an opaque clockframe. One the Alpha, we use
|
|
* what we push on an interrupt (a trapframe).
|
|
*/
|
|
struct clockframe {
|
|
struct trapframe cf_tf;
|
|
};
|
|
#define CLKF_USERMODE(framep) \
|
|
(((framep)->cf_tf.tf_regs[FRAME_PS] & ALPHA_PSL_USERMODE) != 0)
|
|
#define CLKF_BASEPRI(framep) \
|
|
(((framep)->cf_tf.tf_regs[FRAME_PS] & ALPHA_PSL_IPL_MASK) == 0)
|
|
#define CLKF_PC(framep) ((framep)->cf_tf.tf_regs[FRAME_PC])
|
|
|
|
/*
|
|
* This isn't perfect; if the clock interrupt comes in before the
|
|
* r/m/w cycle is complete, we won't be counted... but it's not
|
|
* like this stastic has to be extremely accurate.
|
|
*/
|
|
#define CLKF_INTR(framep) (curcpu()->ci_intrdepth)
|
|
|
|
/*
|
|
* This is used during profiling to integrate system time. It can safely
|
|
* assume that the process is resident.
|
|
*/
|
|
#define LWP_PC(p) ((l)->l_md.md_tf->tf_regs[FRAME_PC])
|
|
|
|
/*
|
|
* Preempt the current process if in interrupt from user mode,
|
|
* or after the current trap/syscall if in system mode.
|
|
*/
|
|
#define need_resched(ci) \
|
|
do { \
|
|
(ci)->ci_want_resched = 1; \
|
|
if ((ci)->ci_curlwp != NULL) \
|
|
aston((ci)->ci_curlwp->l_proc); \
|
|
} while (/*CONSTCOND*/0)
|
|
|
|
/*
|
|
* Give a profiling tick to the current process when the user profiling
|
|
* buffer pages are invalid. On the Alpha, request an AST to send us
|
|
* through trap, marking the proc as needing a profiling tick.
|
|
*/
|
|
#define need_proftick(p) \
|
|
do { \
|
|
(p)->p_flag |= P_OWEUPC; \
|
|
aston(p); \
|
|
} while (/*CONSTCOND*/0)
|
|
|
|
/*
|
|
* Notify the current process (p) that it has a signal pending,
|
|
* process as soon as possible.
|
|
*/
|
|
#define signotify(p) aston(p)
|
|
|
|
/*
|
|
* XXXSMP
|
|
* Should we send an AST IPI? Or just let it handle it next time
|
|
* it sees a normal kernel entry? I guess letting it happen later
|
|
* follows the `asynchronous' part of the name...
|
|
*/
|
|
#define aston(p) ((p)->p_md.md_astpending = 1)
|
|
#endif /* _KERNEL */
|
|
|
|
/*
|
|
* CTL_MACHDEP definitions.
|
|
*/
|
|
#define CPU_CONSDEV 1 /* dev_t: console terminal device */
|
|
#define CPU_ROOT_DEVICE 2 /* string: root device name */
|
|
#define CPU_UNALIGNED_PRINT 3 /* int: print unaligned accesses */
|
|
#define CPU_UNALIGNED_FIX 4 /* int: fix unaligned accesses */
|
|
#define CPU_UNALIGNED_SIGBUS 5 /* int: SIGBUS unaligned accesses */
|
|
#define CPU_BOOTED_KERNEL 6 /* string: booted kernel name */
|
|
#define CPU_FP_SYNC_COMPLETE 7 /* int: always fixup sync fp traps */
|
|
#define CPU_MAXID 8 /* 7 valid machdep IDs */
|
|
|
|
#define CTL_MACHDEP_NAMES { \
|
|
{ 0, 0 }, \
|
|
{ "console_device", CTLTYPE_STRUCT }, \
|
|
{ "root_device", CTLTYPE_STRING }, \
|
|
{ "unaligned_print", CTLTYPE_INT }, \
|
|
{ "unaligned_fix", CTLTYPE_INT }, \
|
|
{ "unaligned_sigbus", CTLTYPE_INT }, \
|
|
{ "booted_kernel", CTLTYPE_STRING }, \
|
|
{ "fp_sync_complete", CTLTYPE_INT }, \
|
|
}
|
|
|
|
#ifdef _KERNEL
|
|
|
|
struct pcb;
|
|
struct proc;
|
|
struct reg;
|
|
struct rpb;
|
|
struct trapframe;
|
|
|
|
extern struct timeval cc_microset_time;
|
|
|
|
int badaddr(void *, size_t);
|
|
#define microtime(tv) cc_microtime(tv)
|
|
void cc_microtime __P((struct timeval *));
|
|
void cc_microset(struct cpu_info *);
|
|
|
|
#endif /* _KERNEL */
|
|
#endif /* _ALPHA_CPU_H_ */
|