cpu.h revision 1.67
1 /* $NetBSD: cpu.h,v 1.67 2004/01/04 11:33:31 jdolecek Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Ludd, University of Lule}, Sweden 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed at Ludd, University of Lule} 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifndef _VAX_CPU_H_ 34 #define _VAX_CPU_H_ 35 36 #if defined(_KERNEL_OPT) 37 #include "opt_multiprocessor.h" 38 #include "opt_lockdebug.h" 39 #endif 40 41 #define CPU_PRINTFATALTRAPS 1 42 #define CPU_CONSDEV 2 43 #define CPU_BOOTED_DEVICE 3 44 #define CPU_BOOTED_KERNEL 4 45 #define CPU_MAXID 5 46 47 #define CTL_MACHDEP_NAMES { \ 48 { 0, 0 }, \ 49 { "printfataltraps", CTLTYPE_INT }, \ 50 { "console_device", CTLTYPE_STRUCT }, \ 51 { "booted_device", CTLTYPE_STRING }, \ 52 { "booted_kernel", CTLTYPE_STRING }, \ 53 } 54 55 #ifdef _KERNEL 56 57 #include <sys/cdefs.h> 58 #include <sys/device.h> 59 #include <sys/lock.h> 60 #include <sys/sched.h> 61 62 #include <machine/mtpr.h> 63 #include <machine/pcb.h> 64 #include <machine/uvax.h> 65 #include <machine/psl.h> 66 67 #define enablertclock() 68 69 /* 70 * All cpu-dependent info is kept in this struct. Pointer to the 71 * struct for the current cpu is set up in locore.c. 72 */ 73 struct cpu_info; 74 75 struct cpu_dep { 76 void (*cpu_steal_pages)(void); /* pmap init before mm is on */ 77 int (*cpu_mchk)(caddr_t); /* Machine check handling */ 78 void (*cpu_memerr)(void); /* Memory subsystem errors */ 79 /* Autoconfiguration */ 80 void (*cpu_conf)(void); 81 int (*cpu_clkread)(time_t); /* Read cpu clock time */ 82 void (*cpu_clkwrite)(void); /* Write system time to cpu */ 83 short cpu_vups; /* speed of cpu */ 84 short cpu_scbsz; /* (estimated) size of system control block */ 85 void (*cpu_halt)(void); /* Cpu dependent halt call */ 86 void (*cpu_reboot)(int); /* Cpu dependent reboot call */ 87 void (*cpu_clrf)(void); /* Clear cold/warm start flags */ 88 void (*cpu_subconf)(struct device *);/*config cpu dep. devs */ 89 int cpu_flags; 90 void (*cpu_badaddr)(void); /* cpu-specific badaddr() */ 91 }; 92 93 #if defined(MULTIPROCESSOR) 94 /* 95 * All cpu-dependent calls for multicpu systems goes here. 96 */ 97 struct cpu_mp_dep { 98 void (*cpu_startslave)(struct device *, struct cpu_info *); 99 void (*cpu_send_ipi)(struct device *dest); 100 void (*cpu_cnintr)(void); 101 }; 102 /* 103 * NOTE: This is not bit mask, this is bit _number_. 104 */ 105 #define IPI_START_CNTX 1 /* Start console transmitter, proc out */ 106 #define IPI_SEND_CNCHAR 2 /* Write char to console, kernel printf */ 107 #define IPI_RUNNING 3 /* This CPU just started to run */ 108 #define IPI_TBIA 4 /* Flush the TLB */ 109 #define IPI_DDB 5 /* Jump into the DDB loop */ 110 111 #define IPI_DEST_MASTER -1 /* Destination is mastercpu */ 112 #define IPI_DEST_ALL -2 /* Broadcast */ 113 114 extern struct cpu_mp_dep *mp_dep_call; 115 #endif /* defined(MULTIPROCESSOR) */ 116 117 #define CPU_RAISEIPL 1 /* Must raise IPL until intr is handled */ 118 119 extern struct cpu_dep *dep_call; /* Holds pointer to current CPU struct. */ 120 121 struct clockframe { 122 int pc; 123 int ps; 124 }; 125 126 struct cpu_info { 127 /* 128 * Public members. 129 */ 130 struct schedstate_percpu ci_schedstate; /* scheduler state */ 131 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 132 u_long ci_spin_locks; /* # of spin locks held */ 133 u_long ci_simple_locks; /* # of simple locks held */ 134 #endif 135 136 struct lwp *ci_curlwp; /* current owner of the processor */ 137 138 /* 139 * Private members. 140 */ 141 int ci_want_resched; /* Should change process */ 142 struct device *ci_dev; /* device struct for this cpu */ 143 long ci_exit; /* Page to use while exiting */ 144 #if defined(MULTIPROCESSOR) 145 struct pcb *ci_pcb; /* Idle PCB for this CPU */ 146 vaddr_t ci_istack; /* Interrupt stack location */ 147 int ci_flags; /* See below */ 148 long ci_ipimsgs; /* Sent IPI bits */ 149 struct trapframe *ci_ddb_regs; /* Used by DDB */ 150 #endif 151 }; 152 #define CI_MASTERCPU 1 /* Set if master CPU */ 153 #define CI_RUNNING 2 /* Set when a slave CPU is running */ 154 #define CI_STOPPED 4 /* Stopped (in debugger) */ 155 156 extern int cpu_printfataltraps; 157 158 #if defined(MULTIPROCESSOR) 159 /* 160 * "helper" struct. All multicpu systems must have the first two field 161 * of its cpu softc like this. (used in multicpu.c). 162 */ 163 struct cpu_mp_softc { 164 struct device sc_dev; 165 struct cpu_info sc_ci; 166 }; 167 #endif /* defined(MULTIPROCESSOR) */ 168 169 #define curcpu() ((struct cpu_info *)mfpr(PR_SSP)) 170 #define curlwp (curcpu()->ci_curlwp) 171 #define cpu_number() (curcpu()->ci_dev->dv_unit) 172 #define ci_cpuid ci_dev->dv_unit 173 #define need_resched(ci) {(ci)->ci_want_resched++; mtpr(AST_OK,PR_ASTLVL); } 174 #define cpu_proc_fork(x, y) 175 #if defined(MULTIPROCESSOR) 176 #define CPU_IS_PRIMARY(ci) ((ci)->ci_flags & CI_MASTERCPU) 177 178 extern char tramp; 179 #endif 180 181 /* 182 * Notify the current process (p) that it has a signal pending, 183 * process as soon as possible. 184 */ 185 186 #define signotify(p) mtpr(AST_OK,PR_ASTLVL); 187 188 189 /* 190 * Give a profiling tick to the current process when the user profiling 191 * buffer pages are invalid. On the hp300, request an ast to send us 192 * through trap, marking the proc as needing a profiling tick. 193 */ 194 #define need_proftick(p) {(p)->p_flag |= P_OWEUPC; mtpr(AST_OK,PR_ASTLVL); } 195 196 /* 197 * This defines the I/O device register space size in pages. 198 */ 199 #define IOSPSZ ((64*1024) / VAX_NBPG) /* 64k == 128 pages */ 200 201 struct device; 202 struct buf; 203 struct pte; 204 205 /* Some low-level prototypes */ 206 #if defined(MULTIPROCESSOR) 207 void cpu_slavesetup(struct device *); 208 void cpu_boot_secondary_processors(void); 209 void cpu_send_ipi(int, int); 210 void cpu_handle_ipi(void); 211 #endif 212 int badaddr(caddr_t, int); 213 void dumpconf(void); 214 void dumpsys(void); 215 void swapconf(void); 216 void disk_printtype(int, int); 217 void disk_reallymapin(struct buf *, struct pte *, int, int); 218 vaddr_t vax_map_physmem(paddr_t, int); 219 void vax_unmap_physmem(vaddr_t, int); 220 void ioaccess(vaddr_t, paddr_t, int); 221 void iounaccess(vaddr_t, int); 222 void findcpu(void); 223 #ifdef DDB 224 int kdbrint(int); 225 #endif 226 #endif /* _KERNEL */ 227 #ifdef _STANDALONE 228 void findcpu(void); 229 #endif 230 #endif /* _VAX_CPU_H_ */ 231
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