cpu.h revision 96442
1/* $FreeBSD: head/sys/ia64/include/cpu.h 96442 2002-05-12 05:54:21Z marcel $ */ 2/* From: NetBSD: cpu.h,v 1.18 1997/09/23 23:17:49 mjacob Exp */ 3 4/* 5 * Copyright (c) 1988 University of Utah. 6 * Copyright (c) 1982, 1990, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * the Systems Programming Group of the University of Utah Computer 11 * Science Department. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the University of 24 * California, Berkeley and its contributors. 25 * 4. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 42 * 43 * @(#)cpu.h 8.4 (Berkeley) 1/5/94 44 */ 45 46#ifndef _MACHINE_CPU_H_ 47#define _MACHINE_CPU_H_ 48 49/* 50 * Exported definitions unique to Alpha cpu support. 51 */ 52 53#include <machine/frame.h> 54 55#define cpu_getstack(td) ((td)->td_frame->tf_r[FRAME_SP]) 56 57/* 58 * Arguments to hardclock and gatherstats encapsulate the previous 59 * machine state in an opaque clockframe. One the Alpha, we use 60 * what we push on an interrupt (a trapframe). 61 */ 62struct clockframe { 63 struct trapframe cf_tf; 64}; 65#define TRAPF_USERMODE(framep) \ 66 (((framep)->tf_cr_ipsr & IA64_PSR_CPL) == IA64_PSR_CPL_USER) 67#define TRAPF_PC(framep) ((framep)->tf_cr_iip) 68 69#define CLKF_USERMODE(framep) TRAPF_USERMODE(&(framep)->cf_tf) 70#define CLKF_PC(framep) TRAPF_PC(&(framep)->cf_tf) 71 72/* 73 * CTL_MACHDEP definitions. 74 */ 75#define CPU_CONSDEV 1 /* dev_t: console terminal device */ 76#define CPU_ROOT_DEVICE 2 /* string: root device name */ 77#define CPU_UNALIGNED_PRINT 3 /* int: print unaligned accesses */ 78#define CPU_UNALIGNED_FIX 4 /* int: fix unaligned accesses */ 79#define CPU_UNALIGNED_SIGBUS 5 /* int: SIGBUS unaligned accesses */ 80#define CPU_BOOTED_KERNEL 6 /* string: booted kernel name */ 81#define CPU_ADJKERNTZ 7 /* int: timezone offset (seconds) */ 82#define CPU_DISRTCSET 8 /* int: disable resettodr() call */ 83#define CPU_WALLCLOCK 9 /* int: indicates wall CMOS clock */ 84#define CPU_MAXID 9 /* 9 valid machdep IDs */ 85 86#define CTL_MACHDEP_NAMES { \ 87 { 0, 0 }, \ 88 { "console_device", CTLTYPE_STRUCT }, \ 89 { "root_device", CTLTYPE_STRING }, \ 90 { "unaligned_print", CTLTYPE_INT }, \ 91 { "unaligned_fix", CTLTYPE_INT }, \ 92 { "unaligned_sigbus", CTLTYPE_INT }, \ 93 { "booted_kernel", CTLTYPE_STRING }, \ 94 { "adjkerntz", CTLTYPE_INT }, \ 95 { "disable_rtc_set", CTLTYPE_INT }, \ 96 { "wall_cmos_clock", CTLTYPE_INT }, \ 97} 98 99#ifdef _KERNEL 100 101struct pcb; 102struct thread; 103struct reg; 104struct rpb; 105struct trapframe; 106 107extern struct rpb *hwrpb; 108extern volatile int mc_expected, mc_received; 109 110int badaddr (void *, size_t); 111int badaddr_read(void *, size_t, void *); 112u_int64_t console_restart(u_int64_t, u_int64_t, u_int64_t); 113void do_sir(void); 114void dumpconf(void); 115void exception_restore(void); /* MAGIC */ 116void frametoreg(struct trapframe *, struct reg *); 117long fswintrberr(void); /* MAGIC */ 118int ia64_pa_access(u_long); 119void ia64_init(u_int64_t, u_int64_t); 120void ia64_fpstate_check(struct thread *p); 121void ia64_fpstate_save(struct thread *p, int write); 122void ia64_fpstate_drop(struct thread *p); 123void ia64_fpstate_switch(struct thread *p); 124void init_prom_interface(struct rpb*); 125void interrupt(u_int64_t, struct trapframe *); 126void machine_check 127 (unsigned long, struct trapframe *, unsigned long, unsigned long); 128u_int64_t hwrpb_checksum(void); 129void hwrpb_restart_setup(void); 130void regdump(struct trapframe *); 131void regtoframe(struct reg *, struct trapframe *); 132int savectx(struct pcb *); 133void restorectx(struct pcb *); 134void set_iointr(void (*)(void *, unsigned long)); 135void fork_trampoline(void); /* MAGIC */ 136void syscall(int, u_int64_t *, struct trapframe *); 137void trap(int vector, int imm, struct trapframe *framep); 138void ia64_probe_sapics(void); 139int ia64_count_cpus(void); 140void map_pal_code(void); 141void cpu_mp_add(uint, uint, uint); 142 143/* 144 * Return contents of in-cpu fast counter as a sort of "bogo-time" 145 * for non-critical timing. 146 */ 147static __inline u_int64_t 148get_cyclecount(void) 149{ 150 return (ia64_get_itc()); 151} 152 153#endif /* _KERNEL */ 154 155#endif /* _MACHINE_CPU_H_ */ 156