1 /* $NetBSD: pci_machdep.c,v 1.24 2014/03/29 19:28:30 christos 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 1.24 2014/03/29 19:28:30 christos Exp $"); 37 38 #include "opt_pci.h" 39 #include "pci.h" 40 41 #include <sys/types.h> 42 #include <sys/param.h> 43 #include <sys/time.h> 44 #include <sys/systm.h> 45 #include <sys/errno.h> 46 #include <sys/device.h> 47 48 #include <uvm/uvm_extern.h> 49 50 #define _SGIMIPS_BUS_DMA_PRIVATE 51 #include <sys/bus.h> 52 #include <machine/intr.h> 53 #include <machine/sysconf.h> 54 55 #include <dev/pci/pcivar.h> 56 #include <dev/pci/pcireg.h> 57 #include <dev/pci/pcidevs.h> 58 #include <dev/pci/pciconf.h> 59 60 struct sgimips_bus_dma_tag pci_bus_dma_tag; 61 62 void 63 pci_attach_hook(device_t parent, device_t self, struct pcibus_attach_args *pba) 64 { 65 /* 66 * PCI doesn't have any special needs; just use 67 * the generic versions of these functions as 68 * established in sgimips_bus_dma_init(). 69 */ 70 pci_bus_dma_tag = sgimips_default_bus_dma_tag; /* struct copy */ 71 72 /* XXX */ 73 74 return; 75 } 76 77 int 78 pci_bus_maxdevs(pci_chipset_tag_t pc, int busno) 79 { 80 81 return (*pc->pc_bus_maxdevs)(pc, busno); 82 } 83 84 pcitag_t 85 pci_make_tag(pci_chipset_tag_t pc, int bus, int device, int function) 86 { 87 88 return (bus << 16) | (device << 11) | (function << 8); 89 } 90 91 void 92 pci_decompose_tag(pci_chipset_tag_t pc, pcitag_t tag, int *bp, int *dp, int *fp) 93 { 94 95 if (bp != NULL) 96 *bp = (tag >> 16) & 0xff; 97 if (dp != NULL) 98 *dp = (tag >> 11) & 0x1f; 99 if (fp != NULL) 100 *fp = (tag >> 8) & 0x07; 101 } 102 103 pcireg_t 104 pci_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int reg) 105 { 106 107 return (*pc->pc_conf_read)(pc, tag, reg); 108 } 109 110 void 111 pci_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int reg, pcireg_t data) 112 { 113 114 (*pc->pc_conf_write)(pc, tag, reg, data); 115 } 116 117 int 118 pci_intr_map(const struct pci_attach_args *pa, pci_intr_handle_t *ihp) 119 { 120 return (*pa->pa_pc->pc_intr_map)(pa, ihp); 121 } 122 123 const char * 124 pci_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t ih, char *buf, 125 size_t len) 126 { 127 return (*pc->pc_intr_string)(pc, ih, buf, len); 128 } 129 130 const struct evcnt * 131 pci_intr_evcnt(pci_chipset_tag_t pc, pci_intr_handle_t ih) 132 { 133 134 /* XXX for now, no evcnt parent reported */ 135 return NULL; 136 } 137 138 int 139 pci_intr_setattr(pci_chipset_tag_t pc, pci_intr_handle_t *ih, 140 int attr, uint64_t data) 141 { 142 143 switch (attr) { 144 case PCI_INTR_MPSAFE: 145 return 0; 146 default: 147 return ENODEV; 148 } 149 } 150 151 void * 152 pci_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level, 153 int (*func)(void *), void *arg) 154 { 155 156 return (void *)(*pc->intr_establish)(ih, 0, func, arg); 157 } 158 159 void 160 pci_intr_disestablish(pci_chipset_tag_t pc, void *cookie) 161 { 162 163 (*pc->intr_disestablish)(cookie); 164 } 165 166 #ifdef PCI_NETBSD_CONFIGURE 167 int 168 pci_conf_hook(pci_chipset_tag_t pc, int bus, int device, int function, 169 pcireg_t id) 170 { 171 172 if (pc->pc_conf_hook) 173 return (*pc->pc_conf_hook)(pc, bus, device, function, id); 174 else 175 return (PCI_CONF_DEFAULT); 176 } 177 178 void 179 pci_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int pin, int swiz, 180 int *iline) 181 { 182 183 return; 184 } 185 #endif 186