1 /* $OpenBSD: pci_up1000.c,v 1.18 2017/09/08 05:36:51 deraadt Exp $ */
2 /* $NetBSD: pci_up1000.c,v 1.6 2000/12/28 22:59:07 sommerfeld Exp $ */
3
4 /*-
5 * Copyright (c) 2000 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Jason R. Thorpe.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #include <sys/param.h>
34 #include <sys/time.h>
35 #include <sys/systm.h>
36 #include <sys/errno.h>
37 #include <sys/device.h>
38
39 #include <uvm/uvm_extern.h>
40
41 #include <machine/autoconf.h>
42 #include <machine/bus.h>
43 #include <machine/intr.h>
44
45 #include <dev/isa/isavar.h>
46
47 #include <dev/pci/pcireg.h>
48 #include <dev/pci/pcivar.h>
49 #include <dev/pci/ppbreg.h>
50 #include <dev/pci/pciidereg.h>
51 #include <dev/pci/pciidevar.h>
52
53 #include <alpha/pci/irongatevar.h>
54
55 #include <alpha/pci/pci_up1000.h>
56 #include <alpha/pci/siovar.h>
57
58 #include "sio.h"
59
60 int api_up1000_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
61 const char *api_up1000_intr_string(void *, pci_intr_handle_t);
62 int api_up1000_intr_line(void *, pci_intr_handle_t);
63 void *api_up1000_intr_establish(void *, pci_intr_handle_t,
64 int, int (*func)(void *), void *, const char *);
65 void api_up1000_intr_disestablish(void *, void *);
66
67 void *api_up1000_pciide_compat_intr_establish(void *, struct device *,
68 struct pci_attach_args *, int, int (*)(void *), void *);
69 void api_up1000_pciide_compat_intr_disestablish(void *, void *);
70
71 void
pci_up1000_pickintr(struct irongate_config * icp)72 pci_up1000_pickintr(struct irongate_config *icp)
73 {
74 bus_space_tag_t iot = &icp->ic_iot;
75 pci_chipset_tag_t pc = &icp->ic_pc;
76
77 pc->pc_intr_v = icp;
78 pc->pc_intr_map = api_up1000_intr_map;
79 pc->pc_intr_string = api_up1000_intr_string;
80 pc->pc_intr_line = api_up1000_intr_line;
81 pc->pc_intr_establish = api_up1000_intr_establish;
82 pc->pc_intr_disestablish = api_up1000_intr_disestablish;
83
84 pc->pc_pciide_compat_intr_establish =
85 api_up1000_pciide_compat_intr_establish;
86 pc->pc_pciide_compat_intr_disestablish =
87 api_up1000_pciide_compat_intr_disestablish;
88
89 #if NSIO
90 sio_intr_setup(pc, iot);
91 #else
92 panic("pci_up1000_pickintr: no I/O interrupt handler (no sio)");
93 #endif
94 }
95
96 int
api_up1000_intr_map(struct pci_attach_args * pa,pci_intr_handle_t * ihp)97 api_up1000_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
98 {
99 int buspin, line = pa->pa_intrline;
100
101 /*
102 * The console places the interrupt mapping in the "line" value.
103 * We trust it whenever possible.
104 */
105 if (line >= 0 && line <= 15) {
106 if (line == 2) {
107 #ifdef DEBUG
108 printf("api_up1000_intr_map: changed IRQ 2 to IRQ 9\n");
109 #endif
110 line = 9;
111 }
112
113 *ihp = line;
114 return 0;
115 }
116
117 if (pa->pa_bridgetag) {
118 buspin = PPB_INTERRUPT_SWIZZLE(pa->pa_rawintrpin,
119 pa->pa_device);
120 if (pa->pa_bridgeih[buspin - 1] != 0) {
121 *ihp = pa->pa_bridgeih[buspin - 1];
122 return 0;
123 }
124 }
125
126 return 1;
127 }
128
129 const char *
api_up1000_intr_string(void * icv,pci_intr_handle_t ih)130 api_up1000_intr_string(void *icv, pci_intr_handle_t ih)
131 {
132 #if 0
133 struct irongate_config *icp = icv;
134 #endif
135
136 return sio_intr_string(NULL /*XXX*/, ih);
137 }
138
139 int
api_up1000_intr_line(void * icv,pci_intr_handle_t ih)140 api_up1000_intr_line(void *icv, pci_intr_handle_t ih)
141 {
142 return sio_intr_line(NULL /*XXX*/, ih);
143 }
144
145 void *
api_up1000_intr_establish(void * icv,pci_intr_handle_t ih,int level,int (* func)(void *),void * arg,const char * name)146 api_up1000_intr_establish(void *icv, pci_intr_handle_t ih, int level,
147 int (*func)(void *), void *arg, const char *name)
148 {
149 #if 0
150 struct irongate_config *icp = icv;
151 #endif
152
153 return sio_intr_establish(NULL /*XXX*/, ih, IST_LEVEL, level, func,
154 arg, name);
155 }
156
157 void
api_up1000_intr_disestablish(void * icv,void * cookie)158 api_up1000_intr_disestablish(void *icv, void *cookie)
159 {
160 #if 0
161 struct irongate_config *icp = icv;
162 #endif
163
164 sio_intr_disestablish(NULL /*XXX*/, cookie);
165 }
166
167 void *
api_up1000_pciide_compat_intr_establish(void * icv,struct device * dev,struct pci_attach_args * pa,int chan,int (* func)(void *),void * arg)168 api_up1000_pciide_compat_intr_establish(void *icv, struct device *dev,
169 struct pci_attach_args *pa, int chan, int (*func)(void *), void *arg)
170 {
171 pci_chipset_tag_t pc = pa->pa_pc;
172 void *cookie = NULL;
173 int bus, irq;
174
175 pci_decompose_tag(pc, pa->pa_tag, &bus, NULL, NULL);
176
177 /*
178 * If this isn't PCI bus #0, all bets are off.
179 */
180 if (bus != 0)
181 return (NULL);
182
183 irq = PCIIDE_COMPAT_IRQ(chan);
184 #if NSIO
185 cookie = sio_intr_establish(NULL /*XXX*/, irq, IST_EDGE, IPL_BIO,
186 func, arg, dev->dv_xname);
187 if (cookie == NULL)
188 return (NULL);
189 #endif
190 return (cookie);
191 }
192
193 void
api_up1000_pciide_compat_intr_disestablish(void * v,void * cookie)194 api_up1000_pciide_compat_intr_disestablish(void *v, void *cookie)
195 {
196 sio_intr_disestablish(NULL, cookie);
197 }
198