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 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 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 * 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 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 * 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 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 * 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 194 api_up1000_pciide_compat_intr_disestablish(void *v, void *cookie) 195 { 196 sio_intr_disestablish(NULL, cookie); 197 } 198