cpu.h revision 1.22
1 /* $NetBSD: cpu.h,v 1.22 2023/10/06 11:45:37 skrll 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 lwp *ci_onproc; /* current user LWP / kthread */ 94 struct cctr_state ci_cc; /* cycle counter state */ 95 struct cpu_info *ci_next; /* next cpu_info structure */ 96 97 volatile int ci_mtx_count; /* Negative count of spin mutexes */ 98 volatile int ci_mtx_oldspl; /* Old SPL at this ci_idepth */ 99 100 /* XXX: Todo */ 101 /* 102 * Private members. 103 */ 104 cpuid_t ci_cpuid; /* our CPU ID */ 105 uint32_t ci_acpiid; /* our ACPI/MADT ID */ 106 uint32_t ci_initapicid; /* our initial APIC ID */ 107 struct pmap *ci_pmap; /* current pmap */ /* XXX FreeBSD has *pcb_current_pmap in pcb ? */ 108 struct lwp *ci_fpcurlwp; /* current owner of the FPU */ 109 paddr_t ci_curpcb; /* PA of current HW PCB */ 110 struct pcb *ci_idle_pcb; /* our idle PCB */ 111 u_int ci_want_resched; /* preempt current process */ 112 u_int ci_unused; /* unused */ 113 u_long ci_intrdepth; /* interrupt trap depth */ 114 struct trapframe *ci_db_regs; /* registers for debuggers */ 115 uint64_t ci_clock; /* clock counter */ 116 uint64_t ci_clockadj; /* clock adjust */ 117 uint64_t ci_vhpt; /* address of vhpt */ 118 }; 119 120 121 extern struct cpu_info cpu_info_primary; 122 extern struct cpu_info *cpu_info_list; 123 124 #define CPU_INFO_ITERATOR int __unused 125 #define CPU_INFO_FOREACH(cii, ci) ci = cpu_info_list; \ 126 ci != NULL; ci = ci->ci_next 127 #ifdef MULTIPROCESSOR 128 /* 129 * XXX: TODO use percpu infrastructure that yamt proposed or use KR? for 130 * storing the percpu pointer. 131 */ 132 #else 133 #define curcpu() (&cpu_info_primary) 134 #endif /* MULTIPROCESSOR */ 135 #define curlwp (curcpu()->ci_curlwp) 136 137 #define cpu_number() 0 /*XXX: FIXME */ 138 139 #define aston(l) ((l)->l_md.md_astpending = 1) 140 141 #define need_resched(ci,l,f) /*XXX: FIXME */ 142 143 struct clockframe { 144 struct trapframe cf_tf; 145 }; 146 147 #define CLKF_PC(cf) (TRAPF_PC(&(cf)->cf_tf)) 148 #define CLKF_CPL(cf) (TRAPF_CPL(&(cf)->cf_tf)) 149 #define CLKF_USERMODE(cf) (TRAPF_USERMODE(&(cf)->cf_tf)) 150 #define CLKF_INTR(frame) (curcpu()->ci_intrdepth) 151 152 #define TRAPF_PC(tf) ((tf)->tf_special.iip) 153 #define TRAPF_CPL(tf) ((tf)->tf_special.psr & IA64_PSR_CPL) 154 #define TRAPF_USERMODE(tf) (TRAPF_CPL(tf) != IA64_PSR_CPL_KERN) 155 156 /* 157 * Give a profiling tick to the current process when the user profiling 158 * buffer pages are invalid. XXX:Fixme.... On the ia64 I haven't yet figured 159 * out what to do about this.. XXX. 160 */ 161 /* extern void cpu_need_proftick(struct lwp *l); */ 162 #define cpu_need_proftick(l) __nothing 163 164 /* 165 * Notify the LWP l that it has a signal pending, process as soon as possible. 166 */ 167 #define cpu_signotify(l) aston(l) 168 169 // void cpu_need_resched(struct cpu_info *ci, int flags) 170 #define cpu_need_resched(ci, l, f) do { \ 171 __USE(ci); \ 172 __USE(f); \ 173 } while(/*CONSTCOND*/0) 174 175 #define setsoftclock() __nothing /*XXX: FIXME */ 176 177 /* machdep.c */ 178 int cpu_maxproc(void); /*XXX: Fill in machdep.c */ 179 180 #define cpu_proc_fork(p1, p2) __nothing /* XXX: Look into this. */ 181 182 #define DELAY(x) __nothing /* XXX: FIXME */ 183 184 #define cpu_idle() ia64_pause() 185 186 #endif /* _KERNEL_ */ 187 #endif /* _IA64_CPU_H */ 188
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