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/* $FreeBSD$ */
/* From: NetBSD: cpu.h,v 1.18 1997/09/23 23:17:49 mjacob Exp */
/*
* 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 _MACHINE_CPU_H_
#define _MACHINE_CPU_H_
#include <machine/frame.h>
/*
* Arguments to hardclock and gatherstats encapsulate the previous machine
* state in an opaque clockframe.
*/
struct clockframe {
struct trapframe cf_tf;
};
#define CLKF_PC(cf) ((cf)->cf_tf.tf_special.iip)
#define CLKF_USERMODE(cf) ((CLKF_PC(cf) >> 61) < 5)
/* Used by signaling code. */
#define cpu_getstack(td) ((td)->td_frame->tf_special.sp)
#define TRAPF_PC(tf) ((tf)->tf_special.iip)
#define TRAPF_CPL(tf) ((tf)->tf_special.psr & IA64_PSR_CPL)
/*
* User mode for use by ast() and VM faults. It's takes into account
* that the gateway page is kernel space when looking at the VA, but
* is to be treated as user space when running with user priveleges.
*/
#define TRAPF_USERMODE(tf) \
((TRAPF_PC(tf) >> 61) < 5 || TRAPF_CPL(tf) == IA64_PSR_CPL_USER)
/*
* CTL_MACHDEP definitions.
*/
#define CPU_CONSDEV 1 /* dev_t: console terminal device */
#define CPU_ADJKERNTZ 2 /* int: timezone offset (seconds) */
#define CPU_DISRTCSET 3 /* int: disable resettodr() call */
#define CPU_WALLCLOCK 4 /* int: indicates wall CMOS clock */
#define CPU_MAXID 5 /* valid machdep IDs */
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
{ "console_device", CTLTYPE_STRUCT }, \
{ "adjkerntz", CTLTYPE_INT }, \
{ "disable_rtc_set", CTLTYPE_INT }, \
{ "wall_cmos_clock", CTLTYPE_INT }, \
}
#ifdef _KERNEL
struct pcb;
struct thread;
struct reg;
struct rpb;
struct trapframe;
u_int64_t console_restart(u_int64_t, u_int64_t, u_int64_t);
int do_ast(struct trapframe *);
void dumpconf(void);
void frametoreg(struct trapframe *, struct reg *);
long fswintrberr(void); /* MAGIC */
int ia64_highfp_drop(struct thread *);
int ia64_highfp_load(struct thread *);
int ia64_highfp_save(struct thread *);
void ia64_init(void);
void init_prom_interface(struct rpb*);
void interrupt(u_int64_t, struct trapframe *);
void machine_check(unsigned long, struct trapframe *, unsigned long,
unsigned long);
void regdump(struct trapframe *);
void regtoframe(struct reg *, struct trapframe *);
void set_iointr(void (*)(void *, unsigned long));
void fork_trampoline(void); /* MAGIC */
int syscall(struct trapframe *);
void trap(int vector, struct trapframe *framep);
void ia64_probe_sapics(void);
int ia64_count_cpus(void);
void map_gateway_page(void);
void map_pal_code(void);
void map_port_space(void);
void cpu_mp_add(u_int, u_int, u_int);
/*
* Return contents of in-cpu fast counter as a sort of "bogo-time"
* for non-critical timing.
*/
static __inline u_int64_t
get_cyclecount(void)
{
return (ia64_get_itc());
}
#endif /* _KERNEL */
#endif /* _MACHINE_CPU_H_ */
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