pci_machdep.c revision 1.8
1 /* $NetBSD: pci_machdep.c,v 1.8 2003/10/04 09:19:23 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 2000 Soren S. Jorvang 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the 18 * NetBSD Project. See http://www.netbsd.org/ for 19 * information about NetBSD. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.8 2003/10/04 09:19:23 tsutsui Exp $"); 37 38 #include <sys/types.h> 39 #include <sys/param.h> 40 #include <sys/time.h> 41 #include <sys/systm.h> 42 #include <sys/errno.h> 43 #include <sys/device.h> 44 45 #include <uvm/uvm_extern.h> 46 47 #define _SGIMIPS_BUS_DMA_PRIVATE 48 #include <machine/bus.h> 49 #include <machine/intr.h> 50 51 #include <dev/pci/pcivar.h> 52 #include <dev/pci/pcireg.h> 53 #include <dev/pci/pcidevs.h> 54 55 /* 56 * PCI doesn't have any special needs; just use 57 * the generic versions of these functions. 58 */ 59 struct sgimips_bus_dma_tag pci_bus_dma_tag = { 60 _bus_dmamap_create, 61 _bus_dmamap_destroy, 62 _bus_dmamap_load, 63 _bus_dmamap_load_mbuf, 64 _bus_dmamap_load_uio, 65 _bus_dmamap_load_raw, 66 _bus_dmamap_unload, 67 _bus_dmamap_sync, 68 _bus_dmamem_alloc, 69 _bus_dmamem_free, 70 _bus_dmamem_map, 71 _bus_dmamem_unmap, 72 _bus_dmamem_mmap, 73 }; 74 75 void 76 pci_attach_hook(parent, self, pba) 77 struct device *parent, *self; 78 struct pcibus_attach_args *pba; 79 { 80 /* XXX */ 81 82 return; 83 } 84 85 int 86 pci_bus_maxdevs(pc, busno) 87 pci_chipset_tag_t pc; 88 int busno; 89 { 90 91 return 5; /* 2 on-board SCSI chips, slots 0, 1 and 2 */ 92 } 93 94 pcitag_t 95 pci_make_tag(pc, bus, device, function) 96 pci_chipset_tag_t pc; 97 int bus, device, function; 98 { 99 100 return (bus << 16) | (device << 11) | (function << 8); 101 } 102 103 void 104 pci_decompose_tag(pc, tag, bp, dp, fp) 105 pci_chipset_tag_t pc; 106 pcitag_t tag; 107 int *bp, *dp, *fp; 108 { 109 110 if (bp != NULL) 111 *bp = (tag >> 16) & 0xff; 112 if (dp != NULL) 113 *dp = (tag >> 11) & 0x1f; 114 if (fp != NULL) 115 *fp = (tag >> 8) & 0x07; 116 } 117 118 pcireg_t 119 pci_conf_read(pc, tag, reg) 120 pci_chipset_tag_t pc; 121 pcitag_t tag; 122 int reg; 123 { 124 125 return (*pc->pc_conf_read)(pc, tag, reg); 126 } 127 128 void 129 pci_conf_write(pc, tag, reg, data) 130 pci_chipset_tag_t pc; 131 pcitag_t tag; 132 int reg; 133 pcireg_t data; 134 { 135 136 (*pc->pc_conf_write)(pc, tag, reg, data); 137 } 138 139 int 140 pci_intr_map(pa, ihp) 141 struct pci_attach_args *pa; 142 pci_intr_handle_t *ihp; 143 { 144 pci_chipset_tag_t pc = pa->pa_pc; 145 pcitag_t intrtag = pa->pa_intrtag; 146 int pin = pa->pa_intrpin; 147 int bus, dev, func, start; 148 149 pci_decompose_tag(pc, intrtag, &bus, &dev, &func); 150 151 if (dev < 3 && pin != PCI_INTERRUPT_PIN_A) 152 panic("SCSI0 and SCSI1 must be hardwired!"); 153 154 switch (pin) { 155 case PCI_INTERRUPT_PIN_NONE: 156 return -1; 157 158 case PCI_INTERRUPT_PIN_A: 159 /* 160 * Each of SCSI{0,1}, & slots 0 - 2 has dedicated interrupt 161 * for pin A? 162 */ 163 *ihp = dev + 7; 164 return 0; 165 166 case PCI_INTERRUPT_PIN_B: 167 start = 0; 168 break; 169 case PCI_INTERRUPT_PIN_C: 170 start = 1; 171 break; 172 case PCI_INTERRUPT_PIN_D: 173 start = 2; 174 break; 175 } 176 177 /* Pins B,C,D are mapped to PCI_SHARED0 - PCI_SHARED2 interrupts */ 178 *ihp = 13 /* PCI_SHARED0 */ + (start + dev - 3) % 3; 179 return 0; 180 } 181 182 const char * 183 pci_intr_string(pc, ih) 184 pci_chipset_tag_t pc; 185 pci_intr_handle_t ih; 186 { 187 static char irqstr[32]; 188 189 sprintf(irqstr, "crime interrupt %d", ih); 190 return irqstr; 191 } 192 193 const struct evcnt * 194 pci_intr_evcnt(pc, ih) 195 pci_chipset_tag_t pc; 196 pci_intr_handle_t ih; 197 { 198 199 /* XXX for now, no evcnt parent reported */ 200 return NULL; 201 } 202 203 extern void * crime_intr_establish(int, int, int, int (*)(void *), void *); 204 205 void * 206 pci_intr_establish(pc, ih, level, func, arg) 207 pci_chipset_tag_t pc; 208 pci_intr_handle_t ih; 209 int level, (*func)(void *); 210 void *arg; 211 { 212 213 return crime_intr_establish(ih, 0, 0, func, arg); 214 } 215 216 void 217 pci_intr_disestablish(pc, cookie) 218 pci_chipset_tag_t pc; 219 void *cookie; 220 { 221 222 panic("pci_intr_disestablish: not implemented"); 223 } 224
Indexes created Wed Sep 24 22:09:59 GMT 2025