/* $OpenBSD: cpu.c,v 1.24 2004/04/07 18:24:19 mickey Exp $ */ /* * Copyright (c) 1998-2003 Michael Shalayeff * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #include <sys/param.h> #include <sys/systm.h> #include <sys/device.h> #include <sys/reboot.h> #include <machine/cpufunc.h> #include <machine/pdc.h> #include <machine/reg.h> #include <machine/iomod.h> #include <machine/autoconf.h> #include <hppa/dev/cpudevs.h> struct cpu_softc { struct device sc_dev; hppa_hpa_t sc_hpa; void *sc_ih; }; int cpumatch(struct device *, void *, void *); void cpuattach(struct device *, struct device *, void *); struct cfattach cpu_ca = { sizeof(struct cpu_softc), cpumatch, cpuattach }; struct cfdriver cpu_cd = { NULL, "cpu", DV_DULL }; int cpumatch(parent, cfdata, aux) struct device *parent; void *cfdata; void *aux; { struct confargs *ca = aux; struct cfdata *cf = cfdata; /* there will be only one for now XXX */ /* probe any 1.0, 1.1 or 2.0 */ if (cf->cf_unit > 0 || ca->ca_type.iodc_type != HPPA_TYPE_NPROC || ca->ca_type.iodc_sv_model != HPPA_NPROC_HPPA) return 0; return 1; } int cpu_hardclock(void *v) { hardclock(v); return (1); } void cpuattach(parent, self, aux) struct device *parent; struct device *self; void *aux; { /* machdep.c */ extern struct pdc_model pdc_model; extern struct pdc_cache pdc_cache; extern struct pdc_btlb pdc_btlb; extern u_int cpu_ticksnum, cpu_ticksdenom; extern u_int fpu_enable; struct cpu_softc *sc = (struct cpu_softc *)self; struct confargs *ca = aux; u_int mhz = 100 * cpu_ticksnum / cpu_ticksdenom; const char *p; printf (": %s ", cpu_typename); if (pdc_model.hvers) { static const char lvls[4][4] = { "0", "1", "1.5", "2" }; printf("L%s-%c ", lvls[pdc_model.pa_lvl], "AB"[pdc_model.mc]); } printf ("%d", mhz / 100); if (mhz % 100 > 9) printf(".%02d", mhz % 100); printf("MHz"); if (fpu_enable) { u_int32_t ver[2]; mtctl(fpu_enable, CR_CCR); __asm volatile( "fstds %%fr0,0(%0)\n\t" "copr,0,0\n\t" "fstds %%fr0,0(%0)" :: "r" (&ver) : "memory"); mtctl(0, CR_CCR); ver[0] = HPPA_FPUVER(ver[0]); printf(", FPU %s rev %d", hppa_mod_info(HPPA_TYPE_FPU, ver[0] >> 5), ver[0] & 0x1f); } printf("\n%s: ", self->dv_xname); p = ""; if (!pdc_cache.dc_conf.cc_sh) { printf("%uK(%db/l) Icache, ", pdc_cache.ic_size / 1024, pdc_cache.ic_conf.cc_line * 16); p = "D"; } /* TODO decode associativity */ printf("%uK(%db/l) wr-%s %scoherent %scache, ", pdc_cache.dc_size / 1024, pdc_cache.dc_conf.cc_line * 16, pdc_cache.dc_conf.cc_wt? "thru" : "back", pdc_cache.dc_conf.cc_cst? "" : "in", p); p = ""; if (!pdc_cache.dt_conf.tc_sh) { printf("%u ITLB, ", pdc_cache.it_size); p = "D"; } printf("%u %scoherent %sTLB", pdc_cache.dt_size, pdc_cache.dt_conf.tc_cst? "" : "in", p); if (pdc_btlb.finfo.num_c) printf(", %u BTLB\n", pdc_btlb.finfo.num_c); else printf(", %u/%u D/I BTLBs\n", pdc_btlb.finfo.num_i, pdc_btlb.finfo.num_d); /* sanity against lusers amongst config editors */ if (ca->ca_irq == 31) sc->sc_ih = cpu_intr_establish(IPL_CLOCK, ca->ca_irq, cpu_hardclock, NULL /*frame*/, sc->sc_dev.dv_xname); else printf ("%s: bad irq %d\n", sc->sc_dev.dv_xname, ca->ca_irq); }