1 /* $OpenBSD: cpu.c,v 1.29 2009/02/08 18:33:28 miod Exp $ */ 2 3 /* 4 * Copyright (c) 1998-2003 Michael Shalayeff 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 26 * THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/device.h> 32 #include <sys/reboot.h> 33 34 #include <machine/cpufunc.h> 35 #include <machine/pdc.h> 36 #include <machine/reg.h> 37 #include <machine/iomod.h> 38 #include <machine/autoconf.h> 39 40 #include <hppa/dev/cpudevs.h> 41 42 struct cpu_softc { 43 struct device sc_dev; 44 45 hppa_hpa_t sc_hpa; 46 void *sc_ih; 47 }; 48 49 int cpumatch(struct device *, void *, void *); 50 void cpuattach(struct device *, struct device *, void *); 51 52 struct cfattach cpu_ca = { 53 sizeof(struct cpu_softc), cpumatch, cpuattach 54 }; 55 56 struct cfdriver cpu_cd = { 57 NULL, "cpu", DV_DULL 58 }; 59 60 int 61 cpumatch(parent, cfdata, aux) 62 struct device *parent; 63 void *cfdata; 64 void *aux; 65 { 66 struct confargs *ca = aux; 67 struct cfdata *cf = cfdata; 68 69 /* there will be only one for now XXX */ 70 /* probe any 1.0, 1.1 or 2.0 */ 71 if (cf->cf_unit > 0 || 72 ca->ca_type.iodc_type != HPPA_TYPE_NPROC || 73 ca->ca_type.iodc_sv_model != HPPA_NPROC_HPPA) 74 return 0; 75 76 return 1; 77 } 78 79 void 80 cpuattach(parent, self, aux) 81 struct device *parent; 82 struct device *self; 83 void *aux; 84 { 85 /* machdep.c */ 86 extern struct pdc_model pdc_model; 87 extern struct pdc_cache pdc_cache; 88 extern struct pdc_btlb pdc_btlb; 89 extern u_int cpu_ticksnum, cpu_ticksdenom; 90 extern u_int fpu_enable; 91 /* clock.c */ 92 extern int cpu_hardclock(void *); 93 94 struct cpu_softc *sc = (struct cpu_softc *)self; 95 struct confargs *ca = aux; 96 u_int mhz = 100 * cpu_ticksnum / cpu_ticksdenom; 97 const char *p; 98 99 printf (": %s ", cpu_typename); 100 if (pdc_model.hvers) { 101 static const char lvls[4][4] = { "0", "1", "1.5", "2" }; 102 103 printf("L%s-%c ", lvls[pdc_model.pa_lvl], "AB"[pdc_model.mc]); 104 } 105 106 printf ("%d", mhz / 100); 107 if (mhz % 100 > 9) 108 printf(".%02d", mhz % 100); 109 printf("MHz"); 110 111 if (fpu_enable) { 112 extern u_int fpu_version; 113 u_int32_t ver[2]; 114 115 mtctl(fpu_enable, CR_CCR); 116 __asm volatile( 117 "fstds %%fr0,0(%0)\n\t" 118 "copr,0,0\n\t" 119 "fstds %%fr0,0(%0)" 120 :: "r" (&ver) : "memory"); 121 mtctl(0, CR_CCR); 122 fpu_version = HPPA_FPUVER(ver[0]); 123 printf(", FPU %s rev %d", 124 hppa_mod_info(HPPA_TYPE_FPU, fpu_version >> 5), 125 fpu_version & 0x1f); 126 } 127 128 printf("\n%s: ", self->dv_xname); 129 p = ""; 130 if (!pdc_cache.dc_conf.cc_sh) { 131 printf("%uK(%db/l) Icache, ", 132 pdc_cache.ic_size / 1024, pdc_cache.ic_conf.cc_line * 16); 133 p = "D"; 134 } 135 136 printf("%uK(%db/l) wr-%s %scache, ", 137 pdc_cache.dc_size / 1024, pdc_cache.dc_conf.cc_line * 16, 138 pdc_cache.dc_conf.cc_wt? "thru" : "back", p); 139 140 p = ""; 141 if (!pdc_cache.dt_conf.tc_sh) { 142 printf("%u ITLB, ", pdc_cache.it_size); 143 p = "D"; 144 } 145 printf("%u %scoherent %sTLB", 146 pdc_cache.dt_size, pdc_cache.dt_conf.tc_cst? "" : "in", p); 147 148 if (pdc_btlb.finfo.num_c) 149 printf(", %u BTLB", pdc_btlb.finfo.num_c); 150 else if (pdc_btlb.finfo.num_i || pdc_btlb.finfo.num_d) 151 printf(", %u/%u D/I BTLBs", 152 pdc_btlb.finfo.num_i, pdc_btlb.finfo.num_d); 153 printf("\n"); 154 155 /* sanity against lusers amongst config editors */ 156 if (ca->ca_irq == 31) 157 sc->sc_ih = cpu_intr_establish(IPL_CLOCK, ca->ca_irq, 158 cpu_hardclock, NULL /*frame*/, sc->sc_dev.dv_xname); 159 else 160 printf ("%s: bad irq %d\n", sc->sc_dev.dv_xname, ca->ca_irq); 161 } 162