188 lines
6.5 KiB
C
188 lines
6.5 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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/*
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* Exported definitions unique to Alpha cpu support.
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*/
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#include <machine/frame.h>
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#define cpu_getstack(p) ((p)->p_md.md_tf->tf_r[FRAME_SP])
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/*
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* Arguments to hardclock and gatherstats encapsulate the previous
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* machine state in an opaque clockframe. One the Alpha, we use
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* what we push on an interrupt (a trapframe).
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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_USERMODE(framep) \
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(((framep)->cf_tf.tf_cr_ipsr & IA64_PSR_CPL) == IA64_PSR_CPL_USER)
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#define CLKF_BASEPRI(framep) \
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(((framep)->cf_tf.tf_cr_ipsr & IA64_PSR_I) == 0)
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#define CLKF_PC(framep) ((framep)->cf_tf.tf_cr_iip)
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#define CLKF_INTR(framep) (curproc->p_intr_nesting_level >= 2)
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/*
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* Preempt the current process if in interrupt from user mode,
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* or after the current trap/syscall if in system mode.
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*/
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#define need_resched() do { want_resched = 1; aston(); } while (0)
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#define resched_wanted() want_resched
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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) do { \
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mtx_enter(&sched_lock, MTX_SPIN); \
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(p)->p_sflag |= PS_OWEUPC; \
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aston(); \
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mtx_exit(&sched_lock, MTX_SPIN); \
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} while (0)
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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) aston()
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#define aston() PCPU_SET(astpending, 1)
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#ifdef _KERNEL
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extern u_int32_t want_resched; /* resched() was called */
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#endif
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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_UNALIGNED_PRINT 3 /* int: print unaligned accesses */
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#define CPU_UNALIGNED_FIX 4 /* int: fix unaligned accesses */
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#define CPU_UNALIGNED_SIGBUS 5 /* int: SIGBUS unaligned accesses */
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#define CPU_BOOTED_KERNEL 6 /* string: booted kernel name */
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#define CPU_ADJKERNTZ 7 /* int: timezone offset (seconds) */
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#define CPU_DISRTCSET 8 /* int: disable resettodr() call */
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#define CPU_WALLCLOCK 9 /* int: indicates wall CMOS clock */
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#define CPU_MAXID 9 /* 9 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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{ "unaligned_print", CTLTYPE_INT }, \
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{ "unaligned_fix", CTLTYPE_INT }, \
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{ "unaligned_sigbus", CTLTYPE_INT }, \
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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 proc;
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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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void ast __P((struct trapframe *));
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int badaddr __P((void *, size_t));
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int badaddr_read __P((void *, size_t, void *));
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void child_return __P((struct proc *p));
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u_int64_t console_restart __P((u_int64_t, u_int64_t, u_int64_t));
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void do_sir __P((void));
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void dumpconf __P((void));
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void exception_restore __P((void)); /* MAGIC */
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void frametoreg __P((struct trapframe *, struct reg *));
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long fswintrberr __P((void)); /* MAGIC */
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int ia64_pa_access __P((u_long));
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void ia64_init __P((void));
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void ia64_fpstate_check __P((struct proc *p));
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void ia64_fpstate_save __P((struct proc *p, int write));
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void ia64_fpstate_drop __P((struct proc *p));
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void ia64_fpstate_switch __P((struct proc *p));
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void init_prom_interface __P((struct rpb*));
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void interrupt __P((u_int64_t, struct trapframe *));
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void machine_check
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__P((unsigned long, struct trapframe *, unsigned long, unsigned long));
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u_int64_t hwrpb_checksum __P((void));
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void hwrpb_restart_setup __P((void));
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void regdump __P((struct trapframe *));
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void regtoframe __P((struct reg *, struct trapframe *));
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int savectx __P((struct pcb *));
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void restorectx __P((struct pcb *));
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void set_iointr __P((void (*)(void *, unsigned long)));
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void switch_exit __P((struct proc *)); /* MAGIC */
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void switch_trampoline __P((void)); /* MAGIC */
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void syscall __P((int, u_int64_t *, struct trapframe *));
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void trap __P((int vector, int imm, struct trapframe *framep));
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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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