1 /*-
2 * Copyright (c) 1999, 2000 Matthew R. Green
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
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 BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * from: NetBSD: ebus.c,v 1.52 2008/05/29 14:51:26 mrg Exp
29 */
30 /*-
31 * Copyright (c) 2001, 2003 Thomas Moestl <tmm@FreeBSD.org>
32 * All rights reserved.
33 *
34 * Redistribution and use in source and binary forms, with or without
35 * modification, are permitted provided that the following conditions
36 * are met:
37 * 1. Redistributions of source code must retain the above copyright
38 * notice, this list of conditions and the following disclaimer.
39 * 2. Redistributions in binary form must reproduce the above copyright
40 * notice, this list of conditions and the following disclaimer in the
41 * documentation and/or other materials provided with the distribution.
42 * 3. The name of the author may not be used to endorse or promote products
43 * derived from this software without specific prior written permission.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
50 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
51 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
52 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
53 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * SUCH DAMAGE.
56 */
57
58 #include <sys/cdefs.h>
59 __FBSDID("$FreeBSD: stable/9/sys/sparc64/isa/ofw_isa.c 219567 2011-03-12 14:33:32Z marius $");
60
61 /*
62 * Helper functions which can be used in both ISA and EBus code.
63 */
64
65 #include <sys/param.h>
66 #include <sys/systm.h>
67 #include <sys/bus.h>
68
69 #include <dev/ofw/ofw_bus_subr.h>
70 #include <dev/ofw/openfirm.h>
71
72 #include <machine/bus.h>
73 #include <machine/resource.h>
74
75 #include <sparc64/pci/ofw_pci.h>
76 #include <sparc64/isa/ofw_isa.h>
77
78 #include "pcib_if.h"
79
80 int
ofw_isa_range_restype(struct isa_ranges * range)81 ofw_isa_range_restype(struct isa_ranges *range)
82 {
83 int ps = ISA_RANGE_PS(range);
84
85 switch (ps) {
86 case OFW_PCI_CS_IO:
87 return (SYS_RES_IOPORT);
88 case OFW_PCI_CS_MEM32:
89 return (SYS_RES_MEMORY);
90 default:
91 panic("ofw_isa_range_restype: illegal space %x", ps);
92 }
93
94 }
95
96 /* XXX: this only supports PCI as parent bus right now. */
97 int
ofw_isa_range_map(struct isa_ranges * range,int nrange,u_long * start,u_long * end,int * which)98 ofw_isa_range_map(struct isa_ranges *range, int nrange, u_long *start,
99 u_long *end, int *which)
100 {
101 struct isa_ranges *r;
102 uint64_t offs, cstart, cend;
103 int i;
104
105 for (i = 0; i < nrange; i++) {
106 r = &range[i];
107 cstart = ISA_RANGE_CHILD(r);
108 cend = cstart + r->size - 1;
109 if (*start < cstart || *start > cend)
110 continue;
111 if (*end < cstart || *end > cend) {
112 panic("ofw_isa_map_iorange: iorange crosses PCI "
113 "ranges (%#lx not in %#lx - %#lx)", *end, cstart,
114 cend);
115 }
116 offs = ISA_RANGE_PHYS(r);
117 *start = *start + offs - cstart;
118 *end = *end + offs - cstart;
119 if (which != NULL)
120 *which = i;
121 return (ofw_isa_range_restype(r));
122 }
123 panic("ofw_isa_map_iorange: could not map range %#lx - %#lx",
124 *start, *end);
125 }
126
127 ofw_pci_intr_t
ofw_isa_route_intr(device_t bridge,phandle_t node,struct ofw_bus_iinfo * ii,ofw_isa_intr_t intr)128 ofw_isa_route_intr(device_t bridge, phandle_t node, struct ofw_bus_iinfo *ii,
129 ofw_isa_intr_t intr)
130 {
131 struct isa_regs reg;
132 uint8_t maskbuf[sizeof(reg) + sizeof(intr)];
133 device_t pbridge;
134 ofw_isa_intr_t mintr;
135
136 pbridge = device_get_parent(device_get_parent(bridge));
137 /*
138 * If we get a match from using the map, the resulting INO is
139 * fully specified, so we may not continue to map.
140 */
141 if (!ofw_bus_lookup_imap(node, ii, ®, sizeof(reg),
142 &intr, sizeof(intr), &mintr, sizeof(mintr), NULL, maskbuf)) {
143 /* Try routing at the parent bridge. */
144 mintr = PCIB_ROUTE_INTERRUPT(pbridge, bridge, intr);
145 }
146 return (mintr);
147 }
148