pci_machdep.c revision 1.9
1 /* $NetBSD: pci_machdep.c,v 1.9 2003/10/05 15:38:08 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 1.9 2003/10/05 15:38:08 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 #include <sgimips/dev/crimevar.h> 56 57 /* 58 * PCI doesn't have any special needs; just use 59 * the generic versions of these functions. 60 */ 61 struct sgimips_bus_dma_tag pci_bus_dma_tag = { 62 _bus_dmamap_create, 63 _bus_dmamap_destroy, 64 _bus_dmamap_load, 65 _bus_dmamap_load_mbuf, 66 _bus_dmamap_load_uio, 67 _bus_dmamap_load_raw, 68 _bus_dmamap_unload, 69 _bus_dmamap_sync, 70 _bus_dmamem_alloc, 71 _bus_dmamem_free, 72 _bus_dmamem_map, 73 _bus_dmamem_unmap, 74 _bus_dmamem_mmap, 75 }; 76 77 void 78 pci_attach_hook(parent, self, pba) 79 struct device *parent, *self; 80 struct pcibus_attach_args *pba; 81 { 82 /* XXX */ 83 84 return; 85 } 86 87 int 88 pci_bus_maxdevs(pc, busno) 89 pci_chipset_tag_t pc; 90 int busno; 91 { 92 93 if (busno == 0) 94 return 5; /* 2 on-board SCSI chips, slots 0, 1 and 2 */ 95 else 96 return 0; /* XXX */ 97 } 98 99 pcitag_t 100 pci_make_tag(pc, bus, device, function) 101 pci_chipset_tag_t pc; 102 int bus, device, function; 103 { 104 105 return (bus << 16) | (device << 11) | (function << 8); 106 } 107 108 void 109 pci_decompose_tag(pc, tag, bp, dp, fp) 110 pci_chipset_tag_t pc; 111 pcitag_t tag; 112 int *bp, *dp, *fp; 113 { 114 115 if (bp != NULL) 116 *bp = (tag >> 16) & 0xff; 117 if (dp != NULL) 118 *dp = (tag >> 11) & 0x1f; 119 if (fp != NULL) 120 *fp = (tag >> 8) & 0x07; 121 } 122 123 pcireg_t 124 pci_conf_read(pc, tag, reg) 125 pci_chipset_tag_t pc; 126 pcitag_t tag; 127 int reg; 128 { 129 130 return (*pc->pc_conf_read)(pc, tag, reg); 131 } 132 133 void 134 pci_conf_write(pc, tag, reg, data) 135 pci_chipset_tag_t pc; 136 pcitag_t tag; 137 int reg; 138 pcireg_t data; 139 { 140 141 (*pc->pc_conf_write)(pc, tag, reg, data); 142 } 143 144 int 145 pci_intr_map(pa, ihp) 146 struct pci_attach_args *pa; 147 pci_intr_handle_t *ihp; 148 { 149 pci_chipset_tag_t pc = pa->pa_pc; 150 pcitag_t intrtag = pa->pa_intrtag; 151 int pin = pa->pa_intrpin; 152 int bus, dev, func, start; 153 154 pci_decompose_tag(pc, intrtag, &bus, &dev, &func); 155 156 if (dev < 3 && pin != PCI_INTERRUPT_PIN_A) 157 panic("SCSI0 and SCSI1 must be hardwired!"); 158 159 switch (pin) { 160 case PCI_INTERRUPT_PIN_NONE: 161 return -1; 162 163 case PCI_INTERRUPT_PIN_A: 164 /* 165 * Each of SCSI{0,1}, & slots 0 - 2 has dedicated interrupt 166 * for pin A? 167 */ 168 *ihp = dev + 7; 169 return 0; 170 171 case PCI_INTERRUPT_PIN_B: 172 start = 0; 173 break; 174 case PCI_INTERRUPT_PIN_C: 175 start = 1; 176 break; 177 case PCI_INTERRUPT_PIN_D: 178 start = 2; 179 break; 180 } 181 182 /* Pins B,C,D are mapped to PCI_SHARED0 - PCI_SHARED2 interrupts */ 183 *ihp = 13 /* PCI_SHARED0 */ + (start + dev - 3) % 3; 184 return 0; 185 } 186 187 const char * 188 pci_intr_string(pc, ih) 189 pci_chipset_tag_t pc; 190 pci_intr_handle_t ih; 191 { 192 static char irqstr[32]; 193 194 sprintf(irqstr, "crime interrupt %d", ih); 195 return irqstr; 196 } 197 198 const struct evcnt * 199 pci_intr_evcnt(pc, ih) 200 pci_chipset_tag_t pc; 201 pci_intr_handle_t ih; 202 { 203 204 /* XXX for now, no evcnt parent reported */ 205 return NULL; 206 } 207 208 void * 209 pci_intr_establish(pc, ih, level, func, arg) 210 pci_chipset_tag_t pc; 211 pci_intr_handle_t ih; 212 int level, (*func)(void *); 213 void *arg; 214 { 215 216 return crime_intr_establish(ih, 0, 0, func, arg); 217 } 218 219 void 220 pci_intr_disestablish(pc, cookie) 221 pci_chipset_tag_t pc; 222 void *cookie; 223 { 224 225 panic("pci_intr_disestablish: not implemented"); 226 } 227
Indexes created Thu Sep 25 16:09:42 GMT 2025