cpu.h revision 72906
166458Sdfr/* $FreeBSD: head/sys/ia64/include/cpu.h 72906 2001-02-22 16:56:53Z jhb $ */ 266458Sdfr/* From: NetBSD: cpu.h,v 1.18 1997/09/23 23:17:49 mjacob Exp */ 366458Sdfr 466458Sdfr/* 566458Sdfr * Copyright (c) 1988 University of Utah. 666458Sdfr * Copyright (c) 1982, 1990, 1993 766458Sdfr * The Regents of the University of California. All rights reserved. 866458Sdfr * 966458Sdfr * This code is derived from software contributed to Berkeley by 1066458Sdfr * the Systems Programming Group of the University of Utah Computer 1166458Sdfr * Science Department. 1266458Sdfr * 1366458Sdfr * Redistribution and use in source and binary forms, with or without 1466458Sdfr * modification, are permitted provided that the following conditions 1566458Sdfr * are met: 1666458Sdfr * 1. Redistributions of source code must retain the above copyright 1766458Sdfr * notice, this list of conditions and the following disclaimer. 1866458Sdfr * 2. Redistributions in binary form must reproduce the above copyright 1966458Sdfr * notice, this list of conditions and the following disclaimer in the 2066458Sdfr * documentation and/or other materials provided with the distribution. 2166458Sdfr * 3. All advertising materials mentioning features or use of this software 2266458Sdfr * must display the following acknowledgement: 2366458Sdfr * This product includes software developed by the University of 2466458Sdfr * California, Berkeley and its contributors. 2566458Sdfr * 4. Neither the name of the University nor the names of its contributors 2666458Sdfr * may be used to endorse or promote products derived from this software 2766458Sdfr * without specific prior written permission. 2866458Sdfr * 2966458Sdfr * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 3066458Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 3166458Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 3266458Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 3366458Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3466458Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3566458Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 3666458Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3766458Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3866458Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3966458Sdfr * SUCH DAMAGE. 4066458Sdfr * 4166458Sdfr * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 4266458Sdfr * 4366458Sdfr * @(#)cpu.h 8.4 (Berkeley) 1/5/94 4466458Sdfr */ 4566458Sdfr 4666458Sdfr#ifndef _MACHINE_CPU_H_ 4766458Sdfr#define _MACHINE_CPU_H_ 4866458Sdfr 4966458Sdfr/* 5066458Sdfr * Exported definitions unique to Alpha cpu support. 5166458Sdfr */ 5266458Sdfr 5366458Sdfr#include <machine/frame.h> 5466458Sdfr 5569379Smarcel#define cpu_getstack(p) ((p)->p_md.md_tf->tf_r[FRAME_SP]) 5669379Smarcel 5766458Sdfr/* 5866458Sdfr * Arguments to hardclock and gatherstats encapsulate the previous 5966458Sdfr * machine state in an opaque clockframe. One the Alpha, we use 6066458Sdfr * what we push on an interrupt (a trapframe). 6166458Sdfr */ 6266458Sdfrstruct clockframe { 6366458Sdfr struct trapframe cf_tf; 6466458Sdfr}; 6572892Sjhb#define TRAPF_USERMODE(framep) \ 6672892Sjhb (((framep)->tf_cr_ipsr & IA64_PSR_CPL) == IA64_PSR_CPL_USER) 6772892Sjhb#define TRAPF_PC(framep) ((framep)->tf_cr_iip) 6872892Sjhb 6972892Sjhb#define CLKF_USERMODE(framep) TRAPF_USERMODE(&(framep)->cf_tf) 7072892Sjhb#define CLKF_PC(framep) TRAPF_PC(&(framep)->ct_tf) 7166458Sdfr#define CLKF_BASEPRI(framep) \ 7266458Sdfr (((framep)->cf_tf.tf_cr_ipsr & IA64_PSR_I) == 0) 7371337Sjake#define CLKF_INTR(framep) (curproc->p_intr_nesting_level >= 2) 7466458Sdfr 7566458Sdfr/* 7666458Sdfr * Give a profiling tick to the current process when the user profiling 7766458Sdfr * buffer pages are invalid. On the hp300, request an ast to send us 7866458Sdfr * through trap, marking the proc as needing a profiling tick. 7966458Sdfr */ 8071554Sjhb#define need_proftick(p) do { \ 8172200Sbmilekic mtx_lock_spin(&sched_lock); \ 8271554Sjhb (p)->p_sflag |= PS_OWEUPC; \ 8371554Sjhb aston(); \ 8472200Sbmilekic mtx_unlock_spin(&sched_lock); \ 8571554Sjhb} while (0) 8666458Sdfr 8766458Sdfr 8866458Sdfr/* 8966458Sdfr * CTL_MACHDEP definitions. 9066458Sdfr */ 9166458Sdfr#define CPU_CONSDEV 1 /* dev_t: console terminal device */ 9266458Sdfr#define CPU_ROOT_DEVICE 2 /* string: root device name */ 9366458Sdfr#define CPU_UNALIGNED_PRINT 3 /* int: print unaligned accesses */ 9466458Sdfr#define CPU_UNALIGNED_FIX 4 /* int: fix unaligned accesses */ 9566458Sdfr#define CPU_UNALIGNED_SIGBUS 5 /* int: SIGBUS unaligned accesses */ 9666458Sdfr#define CPU_BOOTED_KERNEL 6 /* string: booted kernel name */ 9766458Sdfr#define CPU_ADJKERNTZ 7 /* int: timezone offset (seconds) */ 9866458Sdfr#define CPU_DISRTCSET 8 /* int: disable resettodr() call */ 9966458Sdfr#define CPU_WALLCLOCK 9 /* int: indicates wall CMOS clock */ 10066458Sdfr#define CPU_MAXID 9 /* 9 valid machdep IDs */ 10166458Sdfr 10266458Sdfr#define CTL_MACHDEP_NAMES { \ 10366458Sdfr { 0, 0 }, \ 10466458Sdfr { "console_device", CTLTYPE_STRUCT }, \ 10566458Sdfr { "root_device", CTLTYPE_STRING }, \ 10666458Sdfr { "unaligned_print", CTLTYPE_INT }, \ 10766458Sdfr { "unaligned_fix", CTLTYPE_INT }, \ 10866458Sdfr { "unaligned_sigbus", CTLTYPE_INT }, \ 10966458Sdfr { "booted_kernel", CTLTYPE_STRING }, \ 11066458Sdfr { "adjkerntz", CTLTYPE_INT }, \ 11166458Sdfr { "disable_rtc_set", CTLTYPE_INT }, \ 11266458Sdfr { "wall_cmos_clock", CTLTYPE_INT }, \ 11366458Sdfr} 11466458Sdfr 11566458Sdfr#ifdef _KERNEL 11666458Sdfr 11766458Sdfrstruct pcb; 11866458Sdfrstruct proc; 11966458Sdfrstruct reg; 12066458Sdfrstruct rpb; 12166458Sdfrstruct trapframe; 12266458Sdfr 12366458Sdfrextern struct rpb *hwrpb; 12466458Sdfrextern volatile int mc_expected, mc_received; 12566458Sdfr 12666458Sdfrvoid ast __P((struct trapframe *)); 12766458Sdfrint badaddr __P((void *, size_t)); 12866458Sdfrint badaddr_read __P((void *, size_t, void *)); 12966458Sdfrvoid child_return __P((struct proc *p)); 13066458Sdfru_int64_t console_restart __P((u_int64_t, u_int64_t, u_int64_t)); 13166458Sdfrvoid do_sir __P((void)); 13266458Sdfrvoid dumpconf __P((void)); 13367020Sdfrvoid exception_restore __P((void)); /* MAGIC */ 13466458Sdfrvoid frametoreg __P((struct trapframe *, struct reg *)); 13566458Sdfrlong fswintrberr __P((void)); /* MAGIC */ 13666458Sdfrint ia64_pa_access __P((u_long)); 13766458Sdfrvoid ia64_init __P((void)); 13866458Sdfrvoid ia64_fpstate_check __P((struct proc *p)); 13966458Sdfrvoid ia64_fpstate_save __P((struct proc *p, int write)); 14066458Sdfrvoid ia64_fpstate_drop __P((struct proc *p)); 14166458Sdfrvoid ia64_fpstate_switch __P((struct proc *p)); 14266458Sdfrvoid init_prom_interface __P((struct rpb*)); 14367032Sdfrvoid interrupt __P((u_int64_t, struct trapframe *)); 14466458Sdfrvoid machine_check 14566458Sdfr __P((unsigned long, struct trapframe *, unsigned long, unsigned long)); 14666458Sdfru_int64_t hwrpb_checksum __P((void)); 14766458Sdfrvoid hwrpb_restart_setup __P((void)); 14866458Sdfrvoid regdump __P((struct trapframe *)); 14966458Sdfrvoid regtoframe __P((struct reg *, struct trapframe *)); 15066458Sdfrint savectx __P((struct pcb *)); 15166458Sdfrvoid restorectx __P((struct pcb *)); 15266458Sdfrvoid set_iointr __P((void (*)(void *, unsigned long))); 15366458Sdfrvoid switch_exit __P((struct proc *)); /* MAGIC */ 15472906Sjhbvoid fork_trampoline __P((void)); /* MAGIC */ 15567199Sdfrvoid syscall __P((int, u_int64_t *, struct trapframe *)); 15667199Sdfrvoid trap __P((int vector, int imm, struct trapframe *framep)); 15766458Sdfr 15869003Smarkm/* 15969003Smarkm * Return contents of in-cpu fast counter as a sort of "bogo-time" 16069003Smarkm * for non-critical timing. 16169003Smarkm */ 16269003Smarkmstatic __inline u_int64_t 16369003Smarkmget_cyclecount(void) 16469003Smarkm{ 16569003Smarkm return (ia64_get_itc()); 16669003Smarkm} 16769003Smarkm 16866458Sdfr#endif /* _KERNEL */ 16966458Sdfr 17066458Sdfr#endif /* _MACHINE_CPU_H_ */ 171