dwlpx.c revision 1.13
1 /* $NetBSD: dwlpx.c,v 1.13 1998/01/12 10:21:12 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1997 by Matthew Jacob 5 * NASA AMES Research Center. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice immediately at the beginning of the file, without modification, 13 * this list of conditions, and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 34 35 __KERNEL_RCSID(0, "$NetBSD: dwlpx.c,v 1.13 1998/01/12 10:21:12 thorpej Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/device.h> 41 #include <vm/vm.h> 42 43 #include <machine/autoconf.h> 44 #include <dev/pci/pcireg.h> 45 #include <dev/pci/pcivar.h> 46 #include <alpha/tlsb/tlsbreg.h> 47 #include <alpha/tlsb/kftxxvar.h> 48 #include <alpha/tlsb/kftxxreg.h> 49 #include <alpha/pci/dwlpxreg.h> 50 #include <alpha/pci/dwlpxvar.h> 51 #include <alpha/pci/pci_kn8ae.h> 52 53 #include <alpha/include/pmap.old.h> 54 55 #define KV(_addr) ((caddr_t)ALPHA_PHYS_TO_K0SEG((_addr))) 56 57 static int dwlpxmatch __P((struct device *, struct cfdata *, void *)); 58 static void dwlpxattach __P((struct device *, struct device *, void *)); 59 60 struct cfattach dwlpx_ca = { 61 sizeof(struct dwlpx_softc), dwlpxmatch, dwlpxattach 62 }; 63 64 extern struct cfdriver dwlpx_cd; 65 66 static int dwlpxprint __P((void *, const char *)); 67 68 static int 69 dwlpxprint(aux, pnp) 70 void *aux; 71 const char *pnp; 72 { 73 register struct pcibus_attach_args *pba = aux; 74 /* only PCIs can attach to DWLPX's; easy. */ 75 if (pnp) 76 printf("%s at %s", pba->pba_busname, pnp); 77 printf(" bus %d", pba->pba_bus); 78 return (UNCONF); 79 } 80 81 static int 82 dwlpxmatch(parent, cf, aux) 83 struct device *parent; 84 struct cfdata *cf; 85 void *aux; 86 { 87 struct kft_dev_attach_args *ka = aux; 88 89 if (strcmp(ka->ka_name, dwlpx_cd.cd_name) != 0) 90 return (0); 91 return (1); 92 } 93 94 static void 95 dwlpxattach(parent, self, aux) 96 struct device *parent; 97 struct device *self; 98 void *aux; 99 { 100 static int once = 0; 101 struct dwlpx_softc *sc = (struct dwlpx_softc *)self; 102 struct dwlpx_config *ccp = &sc->dwlpx_cc; 103 struct kft_dev_attach_args *ka = aux; 104 struct pcibus_attach_args pba; 105 u_int32_t pcia_present; 106 107 sc->dwlpx_node = ka->ka_node; 108 sc->dwlpx_dtype = ka->ka_dtype; 109 sc->dwlpx_hosenum = ka->ka_hosenum; 110 /* 111 * On reads, you get a fault if you read a nonexisted HPC. 112 * The internal KFTIA hose (hose 0) has only 2 HPCs. 113 */ 114 sc->dwlpx_nhpc = NHPC; 115 if (sc->dwlpx_hosenum == 0) { 116 if (TLDEV_DTYPE(sc->dwlpx_dtype) == TLDEV_DTYPE_KFTIA) { 117 sc->dwlpx_nhpc = NHPC - 1; 118 } 119 } 120 121 dwlpx_init(sc); 122 123 /* XXX Need to detect DWLPA vs. DWLPB here. */ 124 pcia_present = REGVAL(PCIA_PRESENT + ccp->cc_sysbase); 125 126 printf(": PCIA rev. %d, STD I/O %spresent\n", 127 (pcia_present >> PCIA_PRESENT_REVSHIFT) & PCIA_PRESENT_REVMASK, 128 (pcia_present & PCIA_PRESENT_STDIO) == 0 ? "not " : ""); 129 130 #if 0 131 { 132 int hpc, slot, slotval; 133 const char *str; 134 135 for (hpc = 0; hpc < sc->dwlpx_nhpc; hpc++) { 136 for (slot = 0; slot < 4; slot++) { 137 slotval = (pcia_present >> 138 PCIA_PRESENT_SLOTSHIFT(hpc, slot)) & 139 PCIA_PRESENT_SLOT_MASK; 140 if (slotval == PCIA_PRESENT_SLOT_NONE) 141 continue; 142 switch (slotval) { 143 case PCIA_PRESENT_SLOT_25W: 144 str = "25"; 145 break; 146 case PCIA_PRESENT_SLOT_15W: 147 str = "15"; 148 break; 149 case PCIA_PRESENT_SLOW_7W: 150 default: /* XXX gcc */ 151 str = "7.5"; 152 break; 153 } 154 printf("%s: hpc %d slot %d: %s watt module\n", 155 sc->dwlpx_dev.dv_xname, hpc, slot, str); 156 } 157 } 158 } 159 #endif 160 161 if (once == 0) { 162 /* 163 * Set up interrupts 164 */ 165 pci_kn8ae_pickintr(&sc->dwlpx_cc, 1); 166 #ifdef EVCNT_COUNTERS 167 evcnt_attach(self, "intr", kn8ae_intr_evcnt); 168 #endif 169 once++; 170 } else { 171 pci_kn8ae_pickintr(&sc->dwlpx_cc, 0); 172 } 173 174 /* 175 * Attach PCI bus 176 */ 177 pba.pba_busname = "pci"; 178 pba.pba_iot = &sc->dwlpx_cc.cc_iot; 179 pba.pba_memt = &sc->dwlpx_cc.cc_memt; 180 pba.pba_dmat = /* start with direct, may change... */ 181 alphabus_dma_get_tag(&sc->dwlpx_cc.cc_dmat_direct, ALPHA_BUS_PCI); 182 pba.pba_pc = &sc->dwlpx_cc.cc_pc; 183 pba.pba_bus = 0; 184 pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED; 185 config_found(self, &pba, dwlpxprint); 186 } 187 188 void 189 dwlpx_init(sc) 190 struct dwlpx_softc *sc; 191 { 192 int i; 193 struct dwlpx_config *ccp = &sc->dwlpx_cc; 194 195 if (ccp->cc_initted == 0) { 196 dwlpx_bus_io_init(&ccp->cc_iot, ccp); 197 dwlpx_bus_mem_init(&ccp->cc_memt, ccp); 198 } 199 dwlpx_pci_init(&ccp->cc_pc, ccp); 200 ccp->cc_sc = sc; 201 202 /* 203 * Establish a precalculated base for convenience's sake. 204 */ 205 ccp->cc_sysbase = 206 (((unsigned long)(sc->dwlpx_node - 4)) << 36) | 207 (((unsigned long) sc->dwlpx_hosenum) << 34) | 208 (1LL << 39); 209 210 /* 211 * Set up DMA stuff for this DWLPX. 212 */ 213 dwlpx_dma_init(ccp); 214 215 /* 216 * Set up interrupt stuff for this DWLPX. 217 * 218 * Note that all PCI interrupt pins are disabled at this time. 219 * 220 * Do this even for all HPCs- even for the nonexistent 221 * one on hose zero of a KFTIA. 222 */ 223 for (i = 0; i < NHPC; i++) { 224 REGVAL(PCIA_IMASK(i) + ccp->cc_sysbase) = DWLPX_IMASK_DFLT; 225 REGVAL(PCIA_ERRVEC(i) + ccp->cc_sysbase) = 226 DWLPX_ERRVEC((sc->dwlpx_node - 4), sc->dwlpx_hosenum); 227 } 228 for (i = 0; i < DWLPX_MAXDEV; i++) { 229 u_int16_t vec; 230 int ss, hpc; 231 232 vec = DWLPX_MVEC((sc->dwlpx_node - 4), sc->dwlpx_hosenum, i); 233 ss = i; 234 if (i < 4) { 235 hpc = 0; 236 } else if (i < 8) { 237 ss -= 4; 238 hpc = 1; 239 } else { 240 ss -= 8; 241 hpc = 2; 242 } 243 REGVAL(PCIA_DEVVEC(hpc, ss, 1) + ccp->cc_sysbase) = vec; 244 REGVAL(PCIA_DEVVEC(hpc, ss, 2) + ccp->cc_sysbase) = vec; 245 REGVAL(PCIA_DEVVEC(hpc, ss, 3) + ccp->cc_sysbase) = vec; 246 REGVAL(PCIA_DEVVEC(hpc, ss, 4) + ccp->cc_sysbase) = vec; 247 } 248 /* 249 * Establish HAE values, as well as make sure of sanity elsewhere. 250 */ 251 for (i = 0; i < sc->dwlpx_nhpc; i++) { 252 u_int32_t ctl = REGVAL(PCIA_CTL(i) + ccp->cc_sysbase); 253 ctl &= 0x0fffffff; 254 ctl &= ~(PCIA_CTL_MHAE(0x1f) | PCIA_CTL_IHAE(0x1f)); 255 /* 256 * I originally also had it or'ing in 3, which makes no sense. 257 */ 258 259 ctl |= PCIA_CTL_RMMENA | PCIA_CTL_RMMARB; 260 261 /* 262 * Only valid if we're attached to a KFTIA or a KTHA. 263 */ 264 ctl |= PCIA_CTL_3UP; 265 266 ctl |= PCIA_CTL_CUTENA; 267 268 REGVAL(PCIA_CTL(i) + ccp->cc_sysbase) = ctl; 269 } 270 ccp->cc_initted = 1; 271 } 272
Indexes created Tue Sep 30 11:09:46 GMT 2025