Annotation of sys/arch/amd64/amd64/mainbus.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: mainbus.c,v 1.12 2007/05/06 03:37:08 gwk Exp $ */
2: /* $NetBSD: mainbus.c,v 1.1 2003/04/26 18:39:29 fvdl Exp $ */
3:
4: /*
5: * Copyright (c) 1996 Christopher G. Demetriou. 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: * 3. All advertising materials mentioning features or use of this software
16: * must display the following acknowledgement:
17: * This product includes software developed by Christopher G. Demetriou
18: * for the NetBSD Project.
19: * 4. The name of the author may not be used to endorse or promote products
20: * derived from this software without specific prior written permission
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32: */
33:
34: #include <sys/param.h>
35: #include <sys/systm.h>
36: #include <sys/device.h>
37:
38: #include <machine/bus.h>
39:
40: #include <dev/isa/isavar.h>
41: #include <dev/pci/pcivar.h>
42:
43: #include <dev/isa/isareg.h>
44:
45: #include "pci.h"
46: #include "isa.h"
47: #include "acpi.h"
48: #include "ipmi.h"
49: #include "bios.h"
50:
51: #include <machine/cpuvar.h>
52: #include <machine/i82093var.h>
53: #include <machine/mpbiosvar.h>
54:
55: #if NACPI > 0
56: #include <dev/acpi/acpireg.h>
57: #include <dev/acpi/acpivar.h>
58: #endif
59:
60: #if NIPMI > 0
61: #include <dev/ipmivar.h>
62: #endif
63:
64: #if NBIOS > 0
65: #include <machine/biosvar.h>
66: #endif
67:
68: int mainbus_match(struct device *, void *, void *);
69: void mainbus_attach(struct device *, struct device *, void *);
70:
71: struct cfattach mainbus_ca = {
72: sizeof(struct device), mainbus_match, mainbus_attach
73: };
74:
75: struct cfdriver mainbus_cd = {
76: NULL, "mainbus", DV_DULL
77: };
78:
79: int mainbus_print(void *, const char *);
80:
81: union mainbus_attach_args {
82: const char *mba_busname; /* first elem of all */
83: struct pcibus_attach_args mba_pba;
84: struct isabus_attach_args mba_iba;
85: struct cpu_attach_args mba_caa;
86: struct apic_attach_args aaa_caa;
87: #if NACPI > 0
88: struct acpi_attach_args mba_aaa;
89: #endif
90: #if NIPMI > 0
91: struct ipmi_attach_args mba_iaa;
92: #endif
93: #if NBIOS > 0
94: struct bios_attach_args mba_bios;
95: #endif
96: };
97:
98: /*
99: * This is set when the ISA bus is attached. If it's not set by the
100: * time it's checked below, then mainbus attempts to attach an ISA.
101: */
102: int isa_has_been_seen;
103: #if NISA > 0
104: struct isabus_attach_args mba_iba = {
105: "isa",
106: X86_BUS_SPACE_IO, X86_BUS_SPACE_MEM,
107: #if NISADMA > 0
108: &isa_bus_dma_tag
109: #else
110: NULL
111: #endif
112: };
113: #endif
114:
115: #if defined(MPBIOS) || defined(MPACPI)
116: struct mp_bus *mp_busses;
117: int mp_nbus;
118: struct mp_intr_map *mp_intrs;
119: int mp_nintr;
120:
121: struct mp_bus *mp_isa_bus;
122: struct mp_bus *mp_eisa_bus;
123:
124: #ifdef MPVERBOSE
125: int mp_verbose = 1;
126: #else
127: int mp_verbose = 0;
128: #endif
129: #endif
130:
131:
132: /*
133: * Probe for the mainbus; always succeeds.
134: */
135: int
136: mainbus_match(struct device *parent, void *match, void *aux)
137: {
138: return (1);
139: }
140:
141: /*
142: * Attach the mainbus.
143: */
144: void
145: mainbus_attach(struct device *parent, struct device *self, void *aux)
146: {
147: #if NPCI > 0
148: union mainbus_attach_args mba;
149: #endif
150: #ifdef MPBIOS
151: int mpbios_present = 0;
152: #endif
153: extern void (*setperf_setup)(struct cpu_info *);
154:
155: printf("\n");
156:
157: #if NPCI > 0
158: pci_mode = pci_mode_detect();
159: #endif
160:
161: #if NBIOS > 0
162: {
163: mba.mba_bios.bios_dev = "bios";
164: mba.mba_bios.bios_iot = X86_BUS_SPACE_IO;
165: mba.mba_bios.bios_memt = X86_BUS_SPACE_MEM;
166: config_found(self, &mba.mba_bios, mainbus_print);
167: }
168: #endif
169:
170: #if NACPI > 0
171: #if NPCI > 0
172: if (pci_mode != 0)
173: #endif
174: {
175: memset(&mba.mba_aaa, 0, sizeof(mba.mba_aaa));
176: mba.mba_aaa.aaa_name = "acpi";
177: mba.mba_aaa.aaa_iot = X86_BUS_SPACE_IO;
178: mba.mba_aaa.aaa_memt = X86_BUS_SPACE_MEM;
179:
180: config_found(self, &mba.mba_aaa, mainbus_print);
181: }
182: #endif
183:
184: #if NIPMI > 0
185: {
186: memset(&mba.mba_iaa, 0, sizeof(mba.mba_iaa));
187: mba.mba_iaa.iaa_name = "ipmi";
188: mba.mba_iaa.iaa_iot = X86_BUS_SPACE_IO;
189: mba.mba_iaa.iaa_memt = X86_BUS_SPACE_MEM;
190: if (ipmi_probe(&mba.mba_iaa))
191: config_found(self, &mba.mba_iaa, mainbus_print);
192: }
193: #endif
194:
195: #ifdef MPBIOS
196: mpbios_present = mpbios_probe(self);
197: #endif
198:
199: #ifdef MPBIOS
200: if (mpbios_present)
201: mpbios_scan(self);
202: else
203: #endif
204:
205: if ((cpu_info_primary.ci_flags & CPUF_PRESENT) == 0) {
206: struct cpu_attach_args caa;
207:
208: memset(&caa, 0, sizeof(caa));
209: caa.caa_name = "cpu";
210: caa.cpu_number = 0;
211: caa.cpu_role = CPU_ROLE_SP;
212: caa.cpu_func = 0;
213:
214: config_found(self, &caa, mainbus_print);
215: }
216:
217: #if NACPI > 0
218: if (!acpi_hasprocfvs)
219: #endif
220: {
221: if (setperf_setup != NULL)
222: setperf_setup(&cpu_info_primary);
223: }
224:
225: #ifdef MULTIPROCESSOR
226: mp_setperf_init();
227: #endif
228:
229: #if NPCI > 0
230: if (pci_mode != 0) {
231: mba.mba_pba.pba_busname = "pci";
232: mba.mba_pba.pba_iot = X86_BUS_SPACE_IO;
233: mba.mba_pba.pba_memt = X86_BUS_SPACE_MEM;
234: mba.mba_pba.pba_dmat = &pci_bus_dma_tag;
235: mba.mba_pba.pba_domain = pci_ndomains++;
236: mba.mba_pba.pba_bus = 0;
237: mba.mba_pba.pba_bridgetag = NULL;
238: mba.mba_pba.pba_pc = NULL;
239: config_found(self, &mba.mba_pba, mainbus_print);
240: }
241: #endif
242:
243: #if NISA > 0
244: if (isa_has_been_seen == 0)
245: config_found(self, &mba_iba, mainbus_print);
246: #endif
247:
248: }
249:
250: int
251: mainbus_print(void *aux, const char *pnp)
252: {
253: union mainbus_attach_args *mba = aux;
254:
255: if (pnp)
256: printf("%s at %s", mba->mba_busname, pnp);
257: if (strcmp(mba->mba_busname, "pci") == 0)
258: printf(" bus %d", mba->mba_pba.pba_bus);
259:
260: return (UNCONF);
261: }
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