1 /* $NetBSD: cpu.h,v 1.10 2001/08/28 03:03:43 matt Exp $ */ 2 3 /* 4 * Copyright (C) 1999 Wolfgang Solfrank. 5 * Copyright (C) 1999 TooLs GmbH. 6 * Copyright (C) 1995-1997 Wolfgang Solfrank. 7 * Copyright (C) 1995-1997 TooLs GmbH. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by TooLs GmbH. 21 * 4. The name of TooLs GmbH may not be used to endorse or promote products 22 * derived from this software without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 25 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 26 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 27 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 29 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 30 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 31 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 32 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34 */ 35 #ifndef _POWERPC_CPU_H_ 36 #define _POWERPC_CPU_H_ 37 38 #if defined(_KERNEL_OPT) 39 #include "opt_lockdebug.h" 40 #include "opt_multiprocessor.h" 41 #endif 42 43 #include <sys/device.h> 44 #include <machine/frame.h> 45 #include <machine/psl.h> 46 #include <machine/intr.h> 47 48 #ifdef _KERNEL 49 #include <sys/sched.h> 50 struct cpu_info { 51 struct schedstate_percpu ci_schedstate; /* scheduler state */ 52 #if defined(DIAGNOSTIC) || defined(LOCKDEBUG) 53 u_long ci_spin_locks; /* # of spin locks held */ 54 u_long ci_simple_locks; /* # of simple locks held */ 55 #endif 56 struct device *ci_dev; /* device of corresponding cpu */ 57 struct proc *ci_curproc; /* current owner of the processor */ 58 59 struct pcb *ci_curpcb; 60 struct pmap *ci_curpm; 61 struct proc *ci_fpuproc; 62 struct pcb *ci_idle_pcb; /* PA of our idle pcb */ 63 int ci_cpuid; 64 65 int ci_astpending; 66 int ci_want_resched; 67 u_long ci_lasttb; 68 int ci_tickspending; 69 int ci_cpl; 70 int ci_ipending; 71 int ci_intrdepth; 72 char *ci_intstk; 73 char *ci_spillstk; 74 int ci_tempsave[8]; 75 int ci_ddbsave[8]; 76 int ci_ipkdbsave[8]; 77 int ci_disisave[4]; 78 struct evcnt ci_ev_traps; /* calls to trap() */ 79 struct evcnt ci_ev_kdsi; /* kernel DSI traps */ 80 struct evcnt ci_ev_udsi; /* user DSI traps */ 81 struct evcnt ci_ev_udsi_fatal; /* user DSI trap failures */ 82 struct evcnt ci_ev_isi; /* user ISI traps */ 83 struct evcnt ci_ev_isi_fatal; /* user ISI trap failures */ 84 struct evcnt ci_ev_pgm; /* user PGM traps */ 85 struct evcnt ci_ev_fpu; /* FPU traps */ 86 struct evcnt ci_ev_fpusw; /* FPU context switch */ 87 struct evcnt ci_ev_ali; /* Alignment traps */ 88 struct evcnt ci_ev_ali_fatal; /* Alignment fatal trap */ 89 struct evcnt ci_ev_scalls; /* system call traps */ 90 struct evcnt ci_ev_vec; /* Altivec traps */ 91 struct evcnt ci_ev_vecsw; /* Altivec context switches */ 92 }; 93 94 #ifdef MULTIPROCESSOR 95 static __inline int 96 cpu_number() 97 { 98 int pir; 99 100 asm ("mfspr %0,1023" : "=r"(pir)); 101 return pir; 102 } 103 104 static __inline struct cpu_info * 105 curcpu() 106 { 107 struct cpu_info *ci; 108 109 asm volatile ("mfsprg %0,0" : "=r"(ci)); 110 return ci; 111 } 112 113 extern struct cpu_info cpu_info[]; 114 115 #define CPU_IS_PRIMARY(ci) ((ci)->ci_cpuid == 0) 116 #define curproc curcpu()->ci_curproc 117 #define fpuproc curcpu()->ci_fpuproc 118 #define curpcb curcpu()->ci_curpcb 119 #define curpm curcpu()->ci_curpm 120 #define want_resched curcpu()->ci_want_resched 121 #define astpending curcpu()->ci_astpending 122 #define intr_depth curcpu()->ci_intrdepth 123 124 #else 125 extern struct cpu_info cpu_info_store; 126 extern volatile int want_resched; 127 extern volatile int astpending; 128 extern volatile int intr_depth; 129 130 #define curcpu() (&cpu_info_store) 131 #define cpu_number() 0 132 133 #endif /* MULTIPROCESSOR */ 134 135 #define CLKF_USERMODE(frame) (((frame)->srr1 & PSL_PR) != 0) 136 #define CLKF_BASEPRI(frame) ((frame)->pri == 0) 137 #define CLKF_PC(frame) ((frame)->srr0) 138 #define CLKF_INTR(frame) ((frame)->depth > 0) 139 140 #define PROC_PC(p) (trapframe(p)->srr0) 141 142 #define cpu_swapout(p) 143 #define cpu_wait(p) 144 145 extern int powersave; 146 extern int cpu_timebase; 147 extern int cpu_printfataltraps; 148 149 extern struct cpu_info *cpu_attach_common(struct device *, int); 150 extern void cpu_identify(char *, size_t); 151 extern void delay (unsigned int); 152 #define DELAY(n) delay(n) 153 154 #define need_resched(ci) (want_resched = 1, astpending = 1) 155 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, astpending = 1) 156 #define signotify(p) (astpending = 1) 157 158 #endif /* _KERNEL */ 159 160 #if defined(_KERNEL) || defined(_STANDALONE) 161 #if !defined(CACHELINESIZE) 162 #define CACHELINESIZE 32 163 #endif 164 #endif 165 166 void __syncicache(void *, int); 167 168 /* 169 * CTL_MACHDEP definitions. 170 */ 171 #define CPU_CACHELINE 1 172 #define CPU_TIMEBASE 2 173 #define CPU_CPUTEMP 3 174 #define CPU_PRINTFATALTRAPS 4 175 #define CPU_MAXID 5 176 177 #define CTL_MACHDEP_NAMES { \ 178 { 0, 0 }, \ 179 { "cachelinesize", CTLTYPE_INT }, \ 180 { "timebase", CTLTYPE_INT }, \ 181 { "cputempature", CTLTYPE_INT }, \ 182 { "printfataltraps", CTLTYPE_INT }, \ 183 } 184 185 #endif /* _POWERPC_CPU_H_ */ 186