Annotation of sys/arch/hppa/dev/cpu.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: cpu.c,v 1.28 2004/12/28 05:18:25 mickey 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: int
80: cpu_hardclock(void *v)
81: {
82: hardclock(v);
83: return (1);
84: }
85:
86: void
87: cpuattach(parent, self, aux)
88: struct device *parent;
89: struct device *self;
90: void *aux;
91: {
92: /* machdep.c */
93: extern struct pdc_model pdc_model;
94: extern struct pdc_cache pdc_cache;
95: extern struct pdc_btlb pdc_btlb;
96: extern u_int cpu_ticksnum, cpu_ticksdenom;
97: extern u_int fpu_enable;
98:
99: struct cpu_softc *sc = (struct cpu_softc *)self;
100: struct confargs *ca = aux;
101: u_int mhz = 100 * cpu_ticksnum / cpu_ticksdenom;
102: const char *p;
103:
104: printf (": %s ", cpu_typename);
105: if (pdc_model.hvers) {
106: static const char lvls[4][4] = { "0", "1", "1.5", "2" };
107:
108: printf("L%s-%c ", lvls[pdc_model.pa_lvl], "AB"[pdc_model.mc]);
109: }
110:
111: printf ("%d", mhz / 100);
112: if (mhz % 100 > 9)
113: printf(".%02d", mhz % 100);
114: printf("MHz");
115:
116: if (fpu_enable) {
117: extern u_int fpu_version;
118: u_int32_t ver[2];
119:
120: mtctl(fpu_enable, CR_CCR);
121: __asm volatile(
122: "fstds %%fr0,0(%0)\n\t"
123: "copr,0,0\n\t"
124: "fstds %%fr0,0(%0)"
125: :: "r" (&ver) : "memory");
126: mtctl(0, CR_CCR);
127: fpu_version = HPPA_FPUVER(ver[0]);
128: printf(", FPU %s rev %d",
129: hppa_mod_info(HPPA_TYPE_FPU, fpu_version >> 5),
130: fpu_version & 0x1f);
131: }
132:
133: printf("\n%s: ", self->dv_xname);
134: p = "";
135: if (!pdc_cache.dc_conf.cc_sh) {
136: printf("%uK(%db/l) Icache, ",
137: pdc_cache.ic_size / 1024, pdc_cache.ic_conf.cc_line * 16);
138: p = "D";
139: }
140:
141: printf("%uK(%db/l) wr-%s %scache, ",
142: pdc_cache.dc_size / 1024, pdc_cache.dc_conf.cc_line * 16,
143: pdc_cache.dc_conf.cc_wt? "thru" : "back", p);
144:
145: p = "";
146: if (!pdc_cache.dt_conf.tc_sh) {
147: printf("%u ITLB, ", pdc_cache.it_size);
148: p = "D";
149: }
150: printf("%u %scoherent %sTLB",
151: pdc_cache.dt_size, pdc_cache.dt_conf.tc_cst? "" : "in", p);
152:
153: if (pdc_btlb.finfo.num_c)
154: printf(", %u BTLB", pdc_btlb.finfo.num_c);
155: else if (pdc_btlb.finfo.num_i || pdc_btlb.finfo.num_d)
156: printf(", %u/%u D/I BTLBs",
157: pdc_btlb.finfo.num_i, pdc_btlb.finfo.num_d);
158: printf("\n");
159:
160: /* sanity against lusers amongst config editors */
161: if (ca->ca_irq == 31)
162: sc->sc_ih = cpu_intr_establish(IPL_CLOCK, ca->ca_irq,
163: cpu_hardclock, NULL /*frame*/, sc->sc_dev.dv_xname);
164: else
165: printf ("%s: bad irq %d\n", sc->sc_dev.dv_xname, ca->ca_irq);
166: }
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