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/* $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);
}
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