cpu.h revision 1.18
1 /* $NetBSD: cpu.h,v 1.18 2019/11/23 19:40:35 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center, and by Charles M. Hannum. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 34 /*- 35 * Copyright (c) 1988 University of Utah. 36 * Copyright (c) 1982, 1990, 1993 37 * The Regents of the University of California. All rights reserved. 38 * 39 * This code is derived from software contributed to Berkeley by 40 * the Systems Programming Group of the University of Utah Computer 41 * Science Department. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 4. Neither the name of the University nor the names of its contributors 52 * may be used to endorse or promote products derived from this software 53 * without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 57 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 58 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 59 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 60 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 61 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 62 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 63 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 64 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 65 * SUCH DAMAGE. 66 * 67 * from: Utah $Hdr: cpu.h 1.16 91/03/25$ 68 * 69 * @(#)cpu.h 8.4 (Berkeley) 1/5/94 70 */ 71 72 73 #ifndef _IA64_CPU_H_ 74 #define _IA64_CPU_H_ 75 76 #ifdef _KERNEL 77 #include <sys/cpu_data.h> 78 #include <sys/cctr.h> 79 #include <machine/frame.h> 80 #include <machine/ia64_cpu.h> 81 #include <machine/lock.h> 82 #include <sys/device_if.h> 83 84 struct cpu_info { 85 86 /* 87 * Public members. 88 */ 89 90 struct cpu_data ci_data; /* MI per-cpu data */ 91 device_t ci_dev; /* pointer to our device */ 92 struct lwp *ci_curlwp; /* current owner of the processor */ 93 struct cctr_state ci_cc; /* cycle counter state */ 94 struct cpu_info *ci_next; /* next cpu_info structure */ 95 96 volatile int ci_mtx_count; /* Negative count of spin mutexes */ 97 volatile int ci_mtx_oldspl; /* Old SPL at this ci_idepth */ 98 99 /* XXX: Todo */ 100 /* 101 * Private members. 102 */ 103 cpuid_t ci_cpuid; /* our CPU ID */ 104 uint32_t ci_acpiid; /* our ACPI/MADT ID */ 105 uint32_t ci_initapicid; /* our intitial APIC ID */ 106 struct pmap *ci_pmap; /* current pmap */ /* XXX FreeBSD has *pcb_current_pmap in pcb ? */ 107 struct lwp *ci_fpcurlwp; /* current owner of the FPU */ 108 paddr_t ci_curpcb; /* PA of current HW PCB */ 109 struct pcb *ci_idle_pcb; /* our idle PCB */ 110 u_long ci_want_resched; /* preempt current process */ 111 u_long ci_intrdepth; /* interrupt trap depth */ 112 struct trapframe *ci_db_regs; /* registers for debuggers */ 113 uint64_t ci_clock; /* clock counter */ 114 uint64_t ci_clockadj; /* clock adjust */ 115 uint64_t ci_vhpt; /* address of vhpt */ 116 }; 117 118 119 extern struct cpu_info cpu_info_primary; 120 extern struct cpu_info *cpu_info_list; 121 122 #define CPU_INFO_ITERATOR int __unused 123 #define CPU_INFO_FOREACH(cii, ci) ci = cpu_info_list; \ 124 ci != NULL; ci = ci->ci_next 125 #ifdef MULTIPROCESSOR 126 /* 127 * XXX: TODO use percpu infrastructure that yamt proposed or use KR? for 128 * storing the percpu pointer. 129 */ 130 #else 131 #define curcpu() (&cpu_info_primary) 132 #endif /* MULTIPROCESSOR */ 133 #define curlwp (curcpu()->ci_curlwp) 134 135 #define cpu_number() 0 /*XXX: FIXME */ 136 137 #define aston(l) ((l)->l_md.md_astpending = 1) 138 139 #define need_resched(ci,l,f) /*XXX: FIXME */ 140 141 struct clockframe { 142 struct trapframe cf_tf; 143 }; 144 145 #define CLKF_PC(cf) (TRAPF_PC(&(cf)->cf_tf)) 146 #define CLKF_CPL(cf) (TRAPF_CPL(&(cf)->cf_tf)) 147 #define CLKF_USERMODE(cf) (TRAPF_USERMODE(&(cf)->cf_tf)) 148 #define CLKF_INTR(frame) (curcpu()->ci_intrdepth) 149 150 #define TRAPF_PC(tf) ((tf)->tf_special.iip) 151 #define TRAPF_CPL(tf) ((tf)->tf_special.psr & IA64_PSR_CPL) 152 #define TRAPF_USERMODE(tf) (TRAPF_CPL(tf) != IA64_PSR_CPL_KERN) 153 154 /* 155 * Give a profiling tick to the current process when the user profiling 156 * buffer pages are invalid. XXX:Fixme.... On the ia64 I haven't yet figured 157 * out what to do about this.. XXX. 158 */ 159 /* extern void cpu_need_proftick(struct lwp *l); */ 160 #define cpu_need_proftick(l) __nothing 161 162 /* 163 * Notify the LWP l that it has a signal pending, process as soon as possible. 164 */ 165 #define cpu_signotify(l) aston(l) 166 167 // void cpu_need_resched(struct cpu_info *ci, int flags) 168 #define cpu_need_resched(ci, l, f) do { \ 169 __USE(ci); \ 170 __USE(f); \ 171 } while(/*CONSTCOND*/0) 172 173 #define setsoftclock() __nothing /*XXX: FIXME */ 174 175 /* machdep.c */ 176 int cpu_maxproc(void); /*XXX: Fill in machdep.c */ 177 178 #define cpu_proc_fork(p1, p2) __nothing /* XXX: Look into this. */ 179 180 #define DELAY(x) __nothing /* XXX: FIXME */ 181 182 #define cpu_idle() ia64_pause() 183 184 #endif /* _KERNEL_ */ 185 #endif /* _IA64_CPU_H */ 186
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