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/* $OpenBSD: cpu.c,v 1.2 2005/05/22 01:38:09 mickey Exp $ */
/*
* Copyright (c) 2005 Michael Shalayeff
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/reboot.h>
#include <machine/pdc.h>
#include <machine/reg.h>
#include <machine/iomod.h>
#include <machine/autoconf.h>
#include <arch/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; */
if ((ca->ca_name && !strcmp(ca->ca_name, "cpu")) ||
(ca->ca_type.iodc_type == HPPA_TYPE_NPROC &&
ca->ca_type.iodc_sv_model == HPPA_NPROC_HPPA))
return 1;
return 0;
}
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 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) {
extern u_int fpu_version;
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);
fpu_version = HPPA_FPUVER(ver[0]);
printf(", FPU %s rev %d",
hppa_mod_info(HPPA_TYPE_FPU, fpu_version >> 5),
fpu_version & 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";
}
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\n",
pdc_cache.dt_size, pdc_cache.dt_conf.tc_cst? "" : "in", p);
/* TODO spin up others */
}
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