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
48RUMP_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
69RUMP_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