1 /* $NetBSD: pci_at_mainbus.c,v 1.11 2022/03/31 19:30:17 pgoyette Exp $ */
2
3 /*
4 * Copyright (c) 2010 Antti Kantee. All Rights Reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: pci_at_mainbus.c,v 1.11 2022/03/31 19:30:17 pgoyette Exp $");
30
31 #include <sys/param.h>
32 #include <sys/conf.h>
33 #include <sys/device.h>
34 #include <sys/mbuf.h>
35 #include <sys/stat.h>
36 #include <sys/bus.h>
37
38 #include <dev/pci/pcivar.h>
39 #include <machine/bus_private.h>
40
41 #include "ioconf.c"
42
43 #include <rump-sys/kern.h>
44 #include <rump-sys/vfs.h>
45
46 #include "pci_user.h"
47
RUMP_COMPONENT(RUMP_COMPONENT_DEV)48 RUMP_COMPONENT(RUMP_COMPONENT_DEV)
49 {
50 extern const struct cdevsw pci_cdevsw;
51 devmajor_t cmaj, bmaj;
52 int error;
53
54 bmaj = cmaj = -1;
55 if ((error = devsw_attach("pci", NULL, &bmaj,
56 &pci_cdevsw, &cmaj)) != 0) {
57 printf("pci: devsw_attach failed: %d\n", error);
58 return;
59 }
60
61 config_init_component(cfdriver_ioconf_pci,
62 cfattach_ioconf_pci, cfdata_ioconf_pci);
63
64 if ((error = rump_vfs_makedevnodes(S_IFCHR, "/dev/pci", '0',
65 cmaj, 0, 4)) != 0)
66 printf("pci: failed to create /dev/pci nodes: %d\n", error);
67 }
68
RUMP_COMPONENT(RUMP_COMPONENT_DEV_AFTERMAINBUS)69 RUMP_COMPONENT(RUMP_COMPONENT_DEV_AFTERMAINBUS)
70 {
71 struct pcibus_attach_args pba;
72 device_t mainbus;
73
74 /* XXX: attach args should come from elsewhere */
75 memset(&pba, 0, sizeof(pba));
76 pba.pba_bus = 0;
77 pba.pba_iot = (bus_space_tag_t)0;
78 pba.pba_memt = (bus_space_tag_t)1;
79 pba.pba_dmat = (void *)0x20;
80 #ifdef _LP64
81 pba.pba_dmat64 = (void *)0x40;
82 #endif
83 pba.pba_flags = PCI_FLAGS_MEM_OKAY |
84 PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY | PCI_FLAGS_MWI_OKAY;
85
86 #ifdef RUMPCOMP_USERFEATURE_PCI_IOSPACE
87 int error;
88
89 error = rumpcomp_pci_iospace_init();
90 if (!error) {
91 pba.pba_flags |= PCI_FLAGS_IO_OKAY;
92 } else {
93 aprint_error("pci: I/O space init error %d, I/O space not "
94 "available\n", error);
95 }
96 #endif
97
98 mainbus = device_find_by_driver_unit("mainbus", 0);
99 if (!mainbus)
100 panic("no mainbus. use maintaxi instead?");
101 config_found(mainbus, &pba, pcibusprint,
102 CFARGS(.iattr = "pcibus"));
103 }
104