cpu.h revision 1.48
1 /* $NetBSD: cpu.h,v 1.48 2000/05/29 20:00:56 ragge 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) && !defined(_LKM) 37 #include "opt_multiprocessor.h" 38 #include "opt_lockdebug.h" 39 #endif 40 41 #ifdef _KERNEL 42 43 #include <sys/cdefs.h> 44 #include <sys/device.h> 45 #include <sys/lock.h> 46 #include <sys/sched.h> 47 48 #include <machine/mtpr.h> 49 #include <machine/pcb.h> 50 #include <machine/uvax.h> 51 #include <machine/psl.h> 52 53 #define enablertclock() 54 #define cpu_wait(p) 55 #define cpu_swapout(p) 56 57 /* 58 * All cpu-dependent info is kept in this struct. Pointer to the 59 * struct for the current cpu is set up in locore.c. 60 */ 61 struct cpu_dep { 62 void (*cpu_steal_pages) __P((void)); /* pmap init before mm is on */ 63 int (*cpu_mchk) __P((caddr_t)); /* Machine check handling */ 64 void (*cpu_memerr) __P((void)); /* Memory subsystem errors */ 65 /* Autoconfiguration */ 66 void (*cpu_conf) __P((void)); 67 int (*cpu_clkread) __P((time_t)); /* Read cpu clock time */ 68 void (*cpu_clkwrite) __P((void)); /* Write system time to cpu */ 69 short cpu_vups; /* speed of cpu */ 70 short cpu_scbsz; /* (estimated) size of system control block */ 71 void (*cpu_halt) __P((void)); /* Cpu dependent halt call */ 72 void (*cpu_reboot) __P((int)); /* Cpu dependent reboot call */ 73 void (*cpu_clrf) __P((void)); /* Clear cold/warm start flags */ 74 void (*cpu_subconf) __P((struct device *));/*config cpu dep. devs */ 75 int cpu_flags; 76 }; 77 78 #define CPU_RAISEIPL 1 /* Must raise IPL until intr is handled */ 79 80 extern struct cpu_dep *dep_call; /* Holds pointer to current CPU struct. */ 81 82 struct clockframe { 83 int pc; 84 int ps; 85 }; 86 87 struct cpu_info { 88 /* 89 * Public members. 90 */ 91 struct schedstate_percpu ci_schedstate; /* scheduler state */ 92 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 93 u_long ci_spin_locks; /* # of spin locks held */ 94 u_long ci_simple_locks; /* # of simple locks held */ 95 #endif 96 97 struct proc *ci_curproc; /* current owner of the processor */ 98 99 /* 100 * Private members. 101 */ 102 int ci_want_resched; /* Should change process */ 103 int ci_cpunumber; /* Some numeric identifier */ 104 long ci_exit; /* Page to use while exiting */ 105 }; 106 107 #define curcpu() ((struct cpu_info *)mfpr(PR_SSP)) 108 #define curproc (curcpu()->ci_curproc) 109 #define cpu_number() (curcpu()->ci_cpunumber) 110 #define need_resched() {curcpu()->ci_want_resched++; mtpr(AST_OK,PR_ASTLVL); } 111 112 extern struct device *booted_from; 113 extern int mastercpu; 114 115 #define setsoftnet() mtpr(12,PR_SIRR) 116 #define setsoftclock() mtpr(8,PR_SIRR) 117 118 /* 119 * Notify the current process (p) that it has a signal pending, 120 * process as soon as possible. 121 */ 122 123 #define signotify(p) mtpr(AST_OK,PR_ASTLVL); 124 125 126 /* 127 * Give a profiling tick to the current process when the user profiling 128 * buffer pages are invalid. On the hp300, request an ast to send us 129 * through trap, marking the proc as needing a profiling tick. 130 */ 131 #define need_proftick(p) {(p)->p_flag |= P_OWEUPC; mtpr(AST_OK,PR_ASTLVL); } 132 133 /* 134 * This defines the I/O device register space size in pages. 135 */ 136 #define IOSPSZ ((64*1024) / VAX_NBPG) /* 64k == 128 pages */ 137 138 struct device; 139 140 /* Some low-level prototypes */ 141 int badaddr __P((caddr_t, int)); 142 void cpu_swapin __P((struct proc *)); 143 int hp_getdev __P((int, int, struct device **)); 144 int ra_getdev __P((int, int, int, struct device **)); 145 void dumpconf __P((void)); 146 void dumpsys __P((void)); 147 void swapconf __P((void)); 148 void disk_printtype __P((int, int)); 149 void disk_reallymapin __P((struct buf *, struct pte *, int, int)); 150 vaddr_t vax_map_physmem __P((paddr_t, int)); 151 void vax_unmap_physmem __P((vaddr_t, int)); 152 void ioaccess __P((vaddr_t, paddr_t, int)); 153 void iounaccess __P((vaddr_t, int)); 154 void findcpu(void); 155 void child_return(void *); 156 #ifdef DDB 157 int kdbrint __P((int)); 158 #endif 159 #endif /* _KERNEL */ 160 #ifdef _STANDALONE 161 void findcpu(void); 162 #endif 163 #endif /* _VAX_CPU_H_ */ 164
Indexes created Wed Sep 24 05:09:52 GMT 2025