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/* $OpenBSD: cpu.c,v 1.33 2010/05/06 14:51:30 jsing 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;
};
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(struct device *parent, void *cfdata, void *aux)
{
struct cfdata *cf = cfdata;
struct confargs *ca = aux;
/* probe any 1.0, 1.1 or 2.0 */
if (ca->ca_type.iodc_type != HPPA_TYPE_NPROC ||
ca->ca_type.iodc_sv_model != HPPA_NPROC_HPPA)
return 0;
if (cf->cf_unit >= MAXCPUS)
return 0;
return 1;
}
void
cpuattach(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;
/* clock.c */
extern int cpu_hardclock(void *);
struct confargs *ca = (struct confargs *)aux;
struct cpu_info *ci;
u_int mhz = 100 * cpu_ticksnum / cpu_ticksdenom;
int cpuno = self->dv_unit;
const char *p;
ci = &cpu_info[cpuno];
ci->ci_dev = self;
ci->ci_cpuid = cpuno;
ci->ci_hpa = ca->ca_hpa;
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 %scache, ",
pdc_cache.dc_size / 1024, pdc_cache.dc_conf.cc_line * 16,
pdc_cache.dc_conf.cc_wt? "thru" : "back", 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", pdc_btlb.finfo.num_c);
else if (pdc_btlb.finfo.num_i || pdc_btlb.finfo.num_d)
printf(", %u/%u D/I BTLBs",
pdc_btlb.finfo.num_i, pdc_btlb.finfo.num_d);
cpu_intr_establish(IPL_CLOCK, 31, cpu_hardclock, NULL, "clock");
printf("\n");
}
#ifdef MULTIPROCESSOR
void
cpu_boot_secondary_processors(void)
{
}
#endif
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