eaa7bda4a5
always kernel space. It should be treated as user space when run with user privileges (which is the case for the signal trampolines). This fixes its only use in a KASSERT in subr_trap.c.
150 lines
5.2 KiB
C
150 lines
5.2 KiB
C
/* $FreeBSD$ */
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/* From: NetBSD: cpu.h,v 1.18 1997/09/23 23:17:49 mjacob 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 _MACHINE_CPU_H_
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#define _MACHINE_CPU_H_
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#include <machine/frame.h>
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/*
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* Arguments to hardclock and gatherstats encapsulate the previous machine
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* state in an opaque clockframe.
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*/
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struct clockframe {
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struct trapframe cf_tf;
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};
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#define CLKF_PC(cf) ((cf)->cf_tf.tf_special.iip)
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#define CLKF_USERMODE(cf) ((CLKF_PC(cf) >> 61) < 5)
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/* Used by signaling code. */
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#define cpu_getstack(td) ((td)->td_frame->tf_special.sp)
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#define TRAPF_PC(tf) ((tf)->tf_special.iip)
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#define TRAPF_CPL(tf) ((tf)->tf_special.psr & IA64_PSR_CPL)
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/*
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* User mode for use by ast() and VM faults. It's takes into account
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* that the gateway page is kernel space when looking at the VA, but
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* is to be treated as user space when running with user priveleges.
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*/
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#define TRAPF_USERMODE(tf) \
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((TRAPF_PC(tf) >> 61) < 5 || TRAPF_CPL(tf) == IA64_PSR_CPL_USER)
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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_ROOT_DEVICE 2 /* string: root device name */
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#define CPU_BOOTED_KERNEL 3 /* string: booted kernel name */
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#define CPU_ADJKERNTZ 4 /* int: timezone offset (seconds) */
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#define CPU_DISRTCSET 5 /* int: disable resettodr() call */
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#define CPU_WALLCLOCK 6 /* int: indicates wall CMOS clock */
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#define CPU_MAXID 7 /* 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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{ "root_device", CTLTYPE_STRING }, \
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{ "booted_kernel", CTLTYPE_STRING }, \
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{ "adjkerntz", CTLTYPE_INT }, \
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{ "disable_rtc_set", CTLTYPE_INT }, \
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{ "wall_cmos_clock", CTLTYPE_INT }, \
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}
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#ifdef _KERNEL
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struct pcb;
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struct thread;
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struct reg;
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struct rpb;
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struct trapframe;
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extern struct rpb *hwrpb;
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extern volatile int mc_expected, mc_received;
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int badaddr(void *, size_t);
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int badaddr_read(void *, size_t, void *);
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u_int64_t console_restart(u_int64_t, u_int64_t, u_int64_t);
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int do_ast(struct trapframe *);
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void dumpconf(void);
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void frametoreg(struct trapframe *, struct reg *);
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long fswintrberr(void); /* MAGIC */
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int ia64_highfp_drop(struct thread *);
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int ia64_highfp_load(struct thread *);
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int ia64_highfp_save(struct thread *);
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void ia64_init(void);
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int ia64_pa_access(u_long);
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void init_prom_interface(struct rpb*);
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void interrupt(u_int64_t, struct trapframe *);
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void machine_check(unsigned long, struct trapframe *, unsigned long,
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unsigned long);
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u_int64_t hwrpb_checksum(void);
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void hwrpb_restart_setup(void);
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void regdump(struct trapframe *);
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void regtoframe(struct reg *, struct trapframe *);
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void set_iointr(void (*)(void *, unsigned long));
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void fork_trampoline(void); /* MAGIC */
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int syscall(struct trapframe *);
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void trap(int vector, struct trapframe *framep);
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void ia64_probe_sapics(void);
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int ia64_count_cpus(void);
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void map_gateway_page(void);
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void map_pal_code(void);
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void map_port_space(void);
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void cpu_mp_add(uint, uint, uint);
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/*
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* Return contents of in-cpu fast counter as a sort of "bogo-time"
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* for non-critical timing.
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*/
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static __inline u_int64_t
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get_cyclecount(void)
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{
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return (ia64_get_itc());
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}
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#endif /* _KERNEL */
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#endif /* _MACHINE_CPU_H_ */
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