cpu.h revision 71337
166458Sdfr/* $FreeBSD: head/sys/ia64/include/cpu.h 71337 2001-01-21 19:25:07Z jake $ */ 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}; 6566458Sdfr#define CLKF_USERMODE(framep) \ 6666458Sdfr (((framep)->cf_tf.tf_cr_ipsr & IA64_PSR_CPL) == IA64_PSR_CPL_USER) 6766458Sdfr#define CLKF_BASEPRI(framep) \ 6866458Sdfr (((framep)->cf_tf.tf_cr_ipsr & IA64_PSR_I) == 0) 6966458Sdfr#define CLKF_PC(framep) ((framep)->cf_tf.tf_cr_iip) 7071337Sjake#define CLKF_INTR(framep) (curproc->p_intr_nesting_level >= 2) 7166458Sdfr 7266458Sdfr/* 7366458Sdfr * Preempt the current process if in interrupt from user mode, 7466458Sdfr * or after the current trap/syscall if in system mode. 7566458Sdfr */ 7666458Sdfr#define need_resched() do { want_resched = 1; aston(); } while (0) 7766458Sdfr 7866458Sdfr#define resched_wanted() want_resched 7966458Sdfr 8066458Sdfr/* 8166458Sdfr * Give a profiling tick to the current process when the user profiling 8266458Sdfr * buffer pages are invalid. On the hp300, request an ast to send us 8366458Sdfr * through trap, marking the proc as needing a profiling tick. 8466458Sdfr */ 8566458Sdfr#define need_proftick(p) \ 8666458Sdfr do { (p)->p_flag |= P_OWEUPC; aston(); } while (0) 8766458Sdfr 8866458Sdfr/* 8966458Sdfr * Notify the current process (p) that it has a signal pending, 9066458Sdfr * process as soon as possible. 9166458Sdfr */ 9266458Sdfr#define signotify(p) aston() 9366458Sdfr 9466458Sdfr#define aston() PCPU_SET(astpending, 1) 9566458Sdfr 9666458Sdfr#ifdef _KERNEL 9766458Sdfrextern u_int32_t want_resched; /* resched() was called */ 9866458Sdfr#endif 9966458Sdfr 10066458Sdfr 10166458Sdfr/* 10266458Sdfr * CTL_MACHDEP definitions. 10366458Sdfr */ 10466458Sdfr#define CPU_CONSDEV 1 /* dev_t: console terminal device */ 10566458Sdfr#define CPU_ROOT_DEVICE 2 /* string: root device name */ 10666458Sdfr#define CPU_UNALIGNED_PRINT 3 /* int: print unaligned accesses */ 10766458Sdfr#define CPU_UNALIGNED_FIX 4 /* int: fix unaligned accesses */ 10866458Sdfr#define CPU_UNALIGNED_SIGBUS 5 /* int: SIGBUS unaligned accesses */ 10966458Sdfr#define CPU_BOOTED_KERNEL 6 /* string: booted kernel name */ 11066458Sdfr#define CPU_ADJKERNTZ 7 /* int: timezone offset (seconds) */ 11166458Sdfr#define CPU_DISRTCSET 8 /* int: disable resettodr() call */ 11266458Sdfr#define CPU_WALLCLOCK 9 /* int: indicates wall CMOS clock */ 11366458Sdfr#define CPU_MAXID 9 /* 9 valid machdep IDs */ 11466458Sdfr 11566458Sdfr#define CTL_MACHDEP_NAMES { \ 11666458Sdfr { 0, 0 }, \ 11766458Sdfr { "console_device", CTLTYPE_STRUCT }, \ 11866458Sdfr { "root_device", CTLTYPE_STRING }, \ 11966458Sdfr { "unaligned_print", CTLTYPE_INT }, \ 12066458Sdfr { "unaligned_fix", CTLTYPE_INT }, \ 12166458Sdfr { "unaligned_sigbus", CTLTYPE_INT }, \ 12266458Sdfr { "booted_kernel", CTLTYPE_STRING }, \ 12366458Sdfr { "adjkerntz", CTLTYPE_INT }, \ 12466458Sdfr { "disable_rtc_set", CTLTYPE_INT }, \ 12566458Sdfr { "wall_cmos_clock", CTLTYPE_INT }, \ 12666458Sdfr} 12766458Sdfr 12866458Sdfr#ifdef _KERNEL 12966458Sdfr 13066458Sdfrstruct pcb; 13166458Sdfrstruct proc; 13266458Sdfrstruct reg; 13366458Sdfrstruct rpb; 13466458Sdfrstruct trapframe; 13566458Sdfr 13666458Sdfrextern struct rpb *hwrpb; 13766458Sdfrextern volatile int mc_expected, mc_received; 13866458Sdfr 13966458Sdfrvoid ast __P((struct trapframe *)); 14066458Sdfrint badaddr __P((void *, size_t)); 14166458Sdfrint badaddr_read __P((void *, size_t, void *)); 14266458Sdfrvoid child_return __P((struct proc *p)); 14366458Sdfru_int64_t console_restart __P((u_int64_t, u_int64_t, u_int64_t)); 14466458Sdfrvoid do_sir __P((void)); 14566458Sdfrvoid dumpconf __P((void)); 14667020Sdfrvoid exception_restore __P((void)); /* MAGIC */ 14766458Sdfrvoid frametoreg __P((struct trapframe *, struct reg *)); 14866458Sdfrlong fswintrberr __P((void)); /* MAGIC */ 14966458Sdfrint ia64_pa_access __P((u_long)); 15066458Sdfrvoid ia64_init __P((void)); 15166458Sdfrvoid ia64_fpstate_check __P((struct proc *p)); 15266458Sdfrvoid ia64_fpstate_save __P((struct proc *p, int write)); 15366458Sdfrvoid ia64_fpstate_drop __P((struct proc *p)); 15466458Sdfrvoid ia64_fpstate_switch __P((struct proc *p)); 15566458Sdfrvoid init_prom_interface __P((struct rpb*)); 15667032Sdfrvoid interrupt __P((u_int64_t, struct trapframe *)); 15766458Sdfrvoid machine_check 15866458Sdfr __P((unsigned long, struct trapframe *, unsigned long, unsigned long)); 15966458Sdfru_int64_t hwrpb_checksum __P((void)); 16066458Sdfrvoid hwrpb_restart_setup __P((void)); 16166458Sdfrvoid regdump __P((struct trapframe *)); 16266458Sdfrvoid regtoframe __P((struct reg *, struct trapframe *)); 16366458Sdfrint savectx __P((struct pcb *)); 16466458Sdfrvoid restorectx __P((struct pcb *)); 16566458Sdfrvoid set_iointr __P((void (*)(void *, unsigned long))); 16666458Sdfrvoid switch_exit __P((struct proc *)); /* MAGIC */ 16766458Sdfrvoid switch_trampoline __P((void)); /* MAGIC */ 16867199Sdfrvoid syscall __P((int, u_int64_t *, struct trapframe *)); 16967199Sdfrvoid trap __P((int vector, int imm, struct trapframe *framep)); 17066458Sdfr 17169003Smarkm/* 17269003Smarkm * Return contents of in-cpu fast counter as a sort of "bogo-time" 17369003Smarkm * for non-critical timing. 17469003Smarkm */ 17569003Smarkmstatic __inline u_int64_t 17669003Smarkmget_cyclecount(void) 17769003Smarkm{ 17869003Smarkm return (ia64_get_itc()); 17969003Smarkm} 18069003Smarkm 18166458Sdfr#endif /* _KERNEL */ 18266458Sdfr 18366458Sdfr#endif /* _MACHINE_CPU_H_ */ 184