/* $OpenBSD: sbus.c,v 1.31 2008/01/03 21:37:25 kettenis Exp $ */ /* $NetBSD: sbus.c,v 1.46 2001/10/07 20:30:41 eeh Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Paul Kranenburg. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratory. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)sbus.c 8.1 (Berkeley) 6/11/93 */ /* * Copyright (c) 1999 Eduardo Horvath * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ /* * SBus stuff. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef DEBUG #define SDB_DVMA 0x1 #define SDB_INTR 0x2 #define SDB_CHILD 0x4 int sbus_debug = 0; #define DPRINTF(l, s) do { if (sbus_debug & l) printf s; } while (0) #else #define DPRINTF(l, s) #endif bus_space_tag_t sbus_alloc_bustag(struct sbus_softc *, int); bus_dma_tag_t sbus_alloc_dma_tag(struct sbus_softc *, bus_dma_tag_t); int sbus_get_intr(struct sbus_softc *, int, struct sbus_intr **, int *, int); int sbus_overtemp(void *); int _sbus_bus_map(bus_space_tag_t, bus_space_tag_t, bus_addr_t, /*offset*/ bus_size_t, /*size*/ int, /*flags*/ bus_space_handle_t *); void *sbus_intr_establish(bus_space_tag_t, bus_space_tag_t, int, /*SBus interrupt level*/ int, /*`device class' priority*/ int, /*flags*/ int (*)(void *), /*handler*/ void *, /*handler arg*/ const char *); /*what*/ void sbus_attach_common(struct sbus_softc *, int, int); /* autoconfiguration driver */ void sbus_mb_attach(struct device *, struct device *, void *); void sbus_xbox_attach(struct device *, struct device *, void *); int sbus_mb_match(struct device *, void *, void *); int sbus_xbox_match(struct device *, void *, void *); struct cfattach sbus_mb_ca = { sizeof(struct sbus_softc), sbus_mb_match, sbus_mb_attach }; struct cfattach sbus_xbox_ca = { sizeof(struct sbus_softc), sbus_xbox_match, sbus_xbox_attach }; struct cfdriver sbus_cd = { NULL, "sbus", DV_DULL }; /* * DVMA routines */ int sbus_dmamap_create(bus_dma_tag_t, bus_dma_tag_t, bus_size_t, int, bus_size_t, bus_size_t, int, bus_dmamap_t *); /* * Child devices receive the SBus interrupt level in their attach * arguments. We translate these to CPU IPLs using the following * tables. Note: obio bus interrupt levels are identical to the * processor IPL. * * The second set of tables is used when the SBus interrupt level * cannot be had from the PROM as an `interrupt' property. We then * fall back on the `intr' property which contains the CPU IPL. */ /* Translate SBus interrupt level to processor IPL */ static int intr_sbus2ipl_4u[] = { 0, 2, 3, 5, 7, 9, 11, 13 }; /* * This value is or'ed into the attach args' interrupt level cookie * if the interrupt level comes from an `intr' property, i.e. it is * not an SBus interrupt level. */ #define SBUS_INTR_COMPAT 0x80000000 /* * Print the location of some sbus-attached device (called just * before attaching that device). If `sbus' is not NULL, the * device was found but not configured; print the sbus as well. * Return UNCONF (config_find ignores this if the device was configured). */ int sbus_print(void *args, const char *busname) { struct sbus_attach_args *sa = args; char *class; int i; if (busname != NULL) { printf("%s at %s", sa->sa_name, busname); class = getpropstring(sa->sa_node, "device_type"); if (*class != '\0') printf(" class %s", class); } printf(" slot %ld offset 0x%lx", (long)sa->sa_slot, (u_long)sa->sa_offset); for (i = 0; i < sa->sa_nintr; i++) { struct sbus_intr *sbi = &sa->sa_intr[i]; printf(" vector %lx ipl %ld", (u_long)sbi->sbi_vec, (long)INTLEV(sbi->sbi_pri)); } return (UNCONF); } int sbus_mb_match(struct device *parent, void *vcf, void *aux) { struct cfdata *cf = vcf; struct mainbus_attach_args *ma = aux; return (strcmp(cf->cf_driver->cd_name, ma->ma_name) == 0); } int sbus_xbox_match(struct device *parent, void *vcf, void *aux) { struct xbox_softc *xsc = (struct xbox_softc *)parent; /* Prevent multiple attachments */ if (xsc->sc_attached == 0) { xsc->sc_attached = 1; return (1); } return (0); } void sbus_xbox_attach(struct device *parent, struct device *self, void *aux) { struct sbus_softc *sc = (struct sbus_softc *)self; struct xbox_softc *xsc = (struct xbox_softc *)parent; struct sbus_softc *sbus = (struct sbus_softc *)parent->dv_parent; struct xbox_attach_args *xa = aux; int node = xa->xa_node; sc->sc_master = sbus->sc_master; sc->sc_bustag = xa->xa_bustag; sc->sc_dmatag = sbus_alloc_dma_tag(sc, xa->xa_dmatag); /* * Parent has already done the address translation computations. */ sc->sc_nrange = xsc->sc_nrange; sc->sc_range = xsc->sc_range; /* * Record clock frequency for synchronous SCSI. * IS THIS THE CORRECT DEFAULT?? */ sc->sc_clockfreq = getpropint(node, "clock-frequency", 25*1000*1000); printf(": clock = %s MHz\n", clockfreq(sc->sc_clockfreq)); sbus_attach_common(sc, node, 1); } void sbus_mb_attach(struct device *parent, struct device *self, void *aux) { struct sbus_softc *sc = (struct sbus_softc *)self; struct mainbus_attach_args *ma = aux; int node = ma->ma_node; struct intrhand *ih; int ipl, error; struct sysioreg *sysio; char *name; sc->sc_master = sc; sc->sc_bustag = ma->ma_bustag; /* Find interrupt group no */ sc->sc_ign = ma->ma_interrupts[0] & INTMAP_IGN; /* * Collect address translations from the OBP. */ error = getprop(node, "ranges", sizeof(struct sbus_range), &sc->sc_nrange, (void **)&sc->sc_range); if (error) panic("%s: error getting ranges property", sc->sc_dev.dv_xname); /* * Record clock frequency for synchronous SCSI. * IS THIS THE CORRECT DEFAULT?? */ sc->sc_clockfreq = getpropint(node, "clock-frequency", 25*1000*1000); printf(": clock = %s MHz\n", clockfreq(sc->sc_clockfreq)); bus_space_map(sc->sc_bustag, ma->ma_address[0], sizeof(struct sysioreg), BUS_SPACE_MAP_PROMADDRESS, &sc->sc_bh); sysio = bus_space_vaddr(sc->sc_bustag, sc->sc_bh); /* initialize the IOMMU */ /* punch in our copies */ sc->sc_is.is_bustag = sc->sc_bustag; bus_space_subregion(sc->sc_bustag, sc->sc_bh, offsetof(struct sysioreg, sys_iommu), sizeof(struct iommureg), &sc->sc_is.is_iommu); /* initialize our strbuf_ctl */ sc->sc_is.is_sb[0] = &sc->sc_sb; if (bus_space_subregion(sc->sc_bustag, sc->sc_bh, offsetof(struct sysioreg, sys_strbuf), sizeof(struct iommu_strbuf), &sc->sc_sb.sb_sb) == 0) { /* point sb_flush to our flush buffer */ sc->sc_sb.sb_flush = &sc->sc_flush; sc->sc_sb.sb_bustag = sc->sc_bustag; } else sc->sc_sb.sb_flush = NULL; /* give us a nice name.. */ name = (char *)malloc(32, M_DEVBUF, M_NOWAIT); if (name == 0) panic("couldn't malloc iommu name"); snprintf(name, 32, "%s dvma", sc->sc_dev.dv_xname); printf("%s: ", sc->sc_dev.dv_xname); iommu_init(name, &sc->sc_is, 0, -1); /* Enable the over temp intr */ ih = malloc(sizeof(*ih), M_DEVBUF, M_NOWAIT | M_ZERO); if (ih == NULL) panic("couldn't malloc intrhand"); ih->ih_map = &sysio->therm_int_map; ih->ih_clr = NULL; /* &sysio->therm_clr_int; */ ih->ih_fun = sbus_overtemp; ipl = 1; ih->ih_pil = (1 << ipl); ih->ih_number = INTVEC(*(ih->ih_map)); strlcpy(ih->ih_name, sc->sc_dev.dv_xname, sizeof(ih->ih_name)); intr_establish(ipl, ih); *(ih->ih_map) |= INTMAP_V; /* * Note: the stupid SBus IOMMU ignores the high bits of an address, so a * NULL DMA pointer will be translated by the first page of the IOTSB. * To avoid bugs we'll alloc and ignore the first entry in the IOTSB. */ { u_long dummy; if (extent_alloc_subregion(sc->sc_is.is_dvmamap, sc->sc_is.is_dvmabase, sc->sc_is.is_dvmabase + NBPG, NBPG, NBPG, 0, 0, EX_NOWAIT | EX_BOUNDZERO, (u_long *)&dummy) != 0) panic("sbus iommu: can't toss first dvma page"); } sc->sc_dmatag = sbus_alloc_dma_tag(sc, ma->ma_dmatag); sbus_attach_common(sc, node, 0); } /* * Attach an SBus (main part). */ void sbus_attach_common(struct sbus_softc *sc, int node, int indirect) { bus_space_tag_t sbt; struct sbus_attach_args sa; int node0; /* Setup interrupt translation tables */ sc->sc_intr2ipl = intr_sbus2ipl_4u; sbt = sbus_alloc_bustag(sc, indirect); /* * Get the SBus burst transfer size if burst transfers are supported */ sc->sc_burst = getpropint(node, "burst-sizes", 0); /* * Loop through ROM children, fixing any relative addresses * and then configuring each device. * `specials' is an array of device names that are treated * specially: */ node0 = firstchild(node); for (node = node0; node; node = nextsibling(node)) { if (sbus_setup_attach_args(sc, sbt, sc->sc_dmatag, node, &sa) != 0) { DPRINTF(SDB_CHILD, ("sbus_attach: %s: incomplete\n", getpropstring(node, "name"))); continue; } (void) config_found(&sc->sc_dev, (void *)&sa, sbus_print); sbus_destroy_attach_args(&sa); } } int sbus_setup_attach_args(struct sbus_softc *sc, bus_space_tag_t bustag, bus_dma_tag_t dmatag, int node, struct sbus_attach_args *sa) { int error; int n; bzero(sa, sizeof(struct sbus_attach_args)); error = getprop(node, "name", 1, &n, (void **)&sa->sa_name); if (error != 0) return (error); sa->sa_name[n] = '\0'; sa->sa_bustag = bustag; sa->sa_dmatag = dmatag; sa->sa_node = node; sa->sa_frequency = sc->sc_clockfreq; error = getprop(node, "reg", sizeof(struct sbus_reg), &sa->sa_nreg, (void **)&sa->sa_reg); if (error != 0) { char buf[32]; if (error != ENOENT || !node_has_property(node, "device_type") || strcmp(getpropstringA(node, "device_type", buf), "hierarchical") != 0) return (error); } for (n = 0; n < sa->sa_nreg; n++) { /* Convert to relative addressing, if necessary */ u_int32_t base = sa->sa_reg[n].sbr_offset; if (SBUS_ABS(base)) { sa->sa_reg[n].sbr_slot = SBUS_ABS_TO_SLOT(base); sa->sa_reg[n].sbr_offset = SBUS_ABS_TO_OFFSET(base); } } if ((error = sbus_get_intr(sc, node, &sa->sa_intr, &sa->sa_nintr, sa->sa_slot)) != 0) return (error); error = getprop(node, "address", sizeof(u_int32_t), &sa->sa_npromvaddrs, (void **)&sa->sa_promvaddrs); if (error != 0 && error != ENOENT) return (error); return (0); } void sbus_destroy_attach_args(struct sbus_attach_args *sa) { if (sa->sa_name != NULL) free(sa->sa_name, M_DEVBUF); if (sa->sa_nreg != 0) free(sa->sa_reg, M_DEVBUF); if (sa->sa_intr) free(sa->sa_intr, M_DEVBUF); if (sa->sa_promvaddrs) free((void *)sa->sa_promvaddrs, M_DEVBUF); bzero(sa, sizeof(struct sbus_attach_args)); /*DEBUG*/ } int _sbus_bus_map(bus_space_tag_t t, bus_space_tag_t t0, bus_addr_t addr, bus_size_t size, int flags, bus_space_handle_t *hp) { struct sbus_softc *sc = t->cookie; int64_t slot = BUS_ADDR_IOSPACE(addr); int64_t offset = BUS_ADDR_PADDR(addr); int i; if (t->parent == NULL || t->parent->sparc_bus_map == NULL) { printf("\n_psycho_bus_map: invalid parent"); return (EINVAL); } if (flags & BUS_SPACE_MAP_PROMADDRESS) { return ((*t->parent->sparc_bus_map)(t, t0, addr, size, flags, hp)); } for (i = 0; i < sc->sc_nrange; i++) { bus_addr_t paddr; if (sc->sc_range[i].cspace != slot) continue; /* We've found the connection to the parent bus */ paddr = sc->sc_range[i].poffset + offset; paddr |= ((bus_addr_t)sc->sc_range[i].pspace << 32); DPRINTF(SDB_DVMA, ("_sbus_bus_map: mapping paddr " "slot %lx offset %lx poffset %lx paddr %lx\n", (long)slot, (long)offset, (long)sc->sc_range[i].poffset, (long)paddr)); return ((*t->parent->sparc_bus_map)(t, t0, paddr, size, flags, hp)); } return (EINVAL); } bus_addr_t sbus_bus_addr(bus_space_tag_t t, u_int btype, u_int offset) { bus_addr_t baddr = ~(bus_addr_t)0; int slot = btype; struct sbus_softc *sc = t->cookie; int i; for (i = 0; i < sc->sc_nrange; i++) { if (sc->sc_range[i].cspace != slot) continue; baddr = sc->sc_range[i].poffset + offset; baddr |= (bus_addr_t)sc->sc_range[i].pspace << 32; } return (baddr); } /* * Handle an overtemp situation. * * SPARCs have temperature sensors which generate interrupts * if the machine's temperature exceeds a certain threshold. * This handles the interrupt and powers off the machine. * The same needs to be done to PCI controller drivers. */ int sbus_overtemp(void *arg) { /* Should try a clean shutdown first */ printf("DANGER: OVER TEMPERATURE detected\nShutting down...\n"); delay(20); boot(RB_POWERDOWN|RB_HALT); /*NOTREACHED*/ return (1); } /* * Get interrupt attributes for an SBus device. */ int sbus_get_intr(struct sbus_softc *sc, int node, struct sbus_intr **ipp, int *np, int slot) { int *ipl; int n, i; char buf[32]; /* * The `interrupts' property contains the SBus interrupt level. */ ipl = NULL; if (getprop(node, "interrupts", sizeof(int), np, (void **)&ipl) == 0) { struct sbus_intr *ip; int pri; /* Default to interrupt level 2 -- otherwise unused */ pri = INTLEVENCODE(2); /* Change format to an `struct sbus_intr' array */ ip = malloc(*np * sizeof(struct sbus_intr), M_DEVBUF, M_NOWAIT); if (ip == NULL) return (ENOMEM); /* * Now things get ugly. We need to take this value which is * the interrupt vector number and encode the IPL into it * somehow. Luckily, the interrupt vector has lots of free * space and we can easily stuff the IPL in there for a while. */ getpropstringA(node, "device_type", buf); if (!buf[0]) getpropstringA(node, "name", buf); for (i = 0; intrmap[i].in_class; i++) if (strcmp(intrmap[i].in_class, buf) == 0) { pri = INTLEVENCODE(intrmap[i].in_lev); break; } /* * SBus card devices need the slot number encoded into * the vector as this is generally not done. */ if ((ipl[0] & INTMAP_OBIO) == 0) pri |= slot << 3; for (n = 0; n < *np; n++) { /* * We encode vector and priority into sbi_pri so we * can pass them as a unit. This will go away if * sbus_establish ever takes an sbus_intr instead * of an integer level. * Stuff the real vector in sbi_vec. */ ip[n].sbi_pri = pri | ipl[n]; ip[n].sbi_vec = ipl[n]; } free(ipl, M_DEVBUF); *ipp = ip; } return (0); } /* * Install an interrupt handler for an SBus device. */ void * sbus_intr_establish(bus_space_tag_t t, bus_space_tag_t t0, int pri, int level, int flags, int (*handler)(void *), void *arg, const char *what) { struct sbus_softc *sc = t->cookie; struct sysioreg *sysio; struct intrhand *ih; volatile u_int64_t *map = NULL; volatile u_int64_t *clr = NULL; int ipl; long vec = pri; /* Pick the master SBus as all do not have IOMMU registers */ sc = sc->sc_master; sysio = bus_space_vaddr(sc->sc_bustag, sc->sc_bh); if ((flags & BUS_INTR_ESTABLISH_SOFTINTR) != 0) ipl = 1 << vec; else if ((vec & SBUS_INTR_COMPAT) != 0) ipl = 1 << (vec & ~SBUS_INTR_COMPAT); else { /* Decode and remove IPL */ ipl = level; if (ipl == IPL_NONE) ipl = 1 << INTLEV(vec); if (ipl == IPL_NONE) { printf("ERROR: no IPL, setting IPL 2.\n"); ipl = 2; } vec = INTVEC(vec); DPRINTF(SDB_INTR, ("\nsbus: intr[%ld]%lx: %lx\nHunting for IRQ...\n", (long)ipl, (long)vec, (u_long)intrlev[vec])); if ((vec & INTMAP_OBIO) == 0) { /* We're in an SBus slot */ /* Register the map and clear intr registers */ bus_space_handle_t maph; int slot = INTSLOT(pri); map = &(&sysio->sbus_slot0_int)[slot]; clr = &sysio->sbus0_clr_int[vec]; #ifdef DEBUG if (sbus_debug & SDB_INTR) { int64_t intrmap = *map; printf("SBus %lx IRQ as %llx in slot %d\n", (long)vec, (long long)intrmap, slot); printf("\tmap addr %p clr addr %p\n", map, clr); } #endif /* Enable the interrupt */ vec |= INTMAP_V; /* Insert IGN */ vec |= sc->sc_ign; /* * This would be cleaner if the underlying interrupt * infrastructure took a bus tag/handle pair. Even * if not, the following could be done with a write * to the appropriate offset from sc->sc_bustag and * sc->sc_bh. */ bus_space_map(sc->sc_bustag, (bus_addr_t)map, 8, BUS_SPACE_MAP_PROMADDRESS, &maph); bus_space_write_8(sc->sc_bustag, maph, 0, vec); } else { bus_space_handle_t maph; volatile int64_t *intrptr = &sysio->scsi_int_map; int64_t intrmap = 0; int i; /* Insert IGN */ vec |= sc->sc_ign; for (i = 0; &intrptr[i] <= (int64_t *)&sysio->reserved_int_map && INTVEC(intrmap = intrptr[i]) != INTVEC(vec); i++) ; if (INTVEC(intrmap) == INTVEC(vec)) { DPRINTF(SDB_INTR, ("OBIO %lx IRQ as %lx in slot %d\n", vec, (long)intrmap, i)); /* Register the map and clear intr registers */ map = &intrptr[i]; intrptr = (int64_t *)&sysio->scsi_clr_int; clr = &intrptr[i]; /* Enable the interrupt */ intrmap |= INTMAP_V; /* * This would be cleaner if the underlying * interrupt infrastructure took a bus tag/ * handle pair. Even if not, the following * could be done with a write to the * appropriate offset from sc->sc_bustag and * sc->sc_bh. */ bus_space_map(sc->sc_bustag, (bus_addr_t)map, 8, BUS_SPACE_MAP_PROMADDRESS, &maph); bus_space_write_8(sc->sc_bustag, maph, 0, (u_long)intrmap); } else panic("IRQ not found!"); } } #ifdef DEBUG if (sbus_debug & SDB_INTR) { long i; for (i = 0; i < 400000000; i++); } #endif ih = bus_intr_allocate(t0, handler, arg, vec, ipl, map, clr, what); if (ih == NULL) return (ih); intr_establish(ih->ih_pil, ih); return (ih); } bus_space_tag_t sbus_alloc_bustag(struct sbus_softc *sc, int indirect) { struct sparc_bus_space_tag *sbt; sbt = malloc(sizeof(*sbt), M_DEVBUF, M_NOWAIT | M_ZERO); if (sbt == NULL) return (NULL); snprintf(sbt->name, sizeof(sbt->name), "%s", sc->sc_dev.dv_xname); sbt->cookie = sc; if (indirect) sbt->parent = sc->sc_bustag->parent; else sbt->parent = sc->sc_bustag; sbt->default_type = SBUS_BUS_SPACE; sbt->asi = ASI_PRIMARY; sbt->sasi = ASI_PRIMARY; sbt->sparc_bus_map = _sbus_bus_map; sbt->sparc_bus_mmap = sc->sc_bustag->sparc_bus_mmap; sbt->sparc_intr_establish = sbus_intr_establish; return (sbt); } bus_dma_tag_t sbus_alloc_dma_tag(struct sbus_softc *sc, bus_dma_tag_t psdt) { bus_dma_tag_t sdt; sdt = (bus_dma_tag_t) malloc(sizeof(struct sparc_bus_dma_tag), M_DEVBUF, M_NOWAIT); if (sdt == NULL) /* Panic? */ return (psdt); sdt->_cookie = sc; sdt->_parent = psdt; sdt->_dmamap_create = sbus_dmamap_create; sdt->_dmamap_destroy = iommu_dvmamap_destroy; sdt->_dmamap_load = iommu_dvmamap_load; sdt->_dmamap_load_raw = iommu_dvmamap_load_raw; sdt->_dmamap_unload = iommu_dvmamap_unload; sdt->_dmamap_sync = iommu_dvmamap_sync; sdt->_dmamem_alloc = iommu_dvmamem_alloc; sdt->_dmamem_free = iommu_dvmamem_free; sdt->_dmamem_map = iommu_dvmamem_map; sdt->_dmamem_unmap = iommu_dvmamem_unmap; return (sdt); } int sbus_dmamap_create(bus_dma_tag_t t, bus_dma_tag_t t0, bus_size_t size, int nsegments, bus_size_t maxsegsz, bus_size_t boundary, int flags, bus_dmamap_t *dmamp) { struct sbus_softc *sc = t->_cookie; /* Disallow DMA on secondary SBuses for now */ if (sc != sc->sc_master) return (EINVAL); return (iommu_dvmamap_create(t, t0, &sc->sc_sb, size, nsegments, maxsegsz, boundary, flags, dmamp)); }