/*- * 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. 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, Berkeley and its contributors. * 4. 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. */ /* * Copyright (c) 1999 Eduardo Horvath * Copyright (c) 2002 by Thomas Moestl . * All rights reserved. * * 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. * * from: @(#)sbus.c 8.1 (Berkeley) 6/11/93 * from: NetBSD: sbus.c,v 1.46 2001/10/07 20:30:41 eeh Exp * * $FreeBSD$ */ /* * Sbus support. */ #include #include #include #include #include #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 int sbus_debug = 0; #define DPRINTF(l, s) do { if (sbus_debug & l) printf s; } while (0) #else #define DPRINTF(l, s) #endif struct sbus_devinfo { int sdi_burstsz; char *sdi_compat; char *sdi_name; /* PROM name */ phandle_t sdi_node; /* PROM node */ int sdi_slot; char *sdi_type; /* PROM name */ struct resource_list sdi_rl; }; /* Range descriptor, allocated for each sc_range. */ struct sbus_rd { bus_addr_t rd_poffset; bus_addr_t rd_pend; int rd_slot; bus_addr_t rd_coffset; bus_addr_t rd_cend; struct rman rd_rman; bus_space_handle_t rd_bushandle; struct resource *rd_res; }; struct sbus_softc { bus_space_tag_t sc_bustag; bus_space_handle_t sc_bushandle; bus_dma_tag_t sc_dmatag; bus_dma_tag_t sc_cdmatag; bus_space_tag_t sc_cbustag; int sc_clockfreq; /* clock frequency (in Hz) */ struct upa_regs *sc_reg; int sc_nreg; int sc_nrange; struct sbus_rd *sc_rd; int sc_burst; /* burst transfer sizes supported */ int *sc_intr_compat;/* `intr' property to sbus compat */ struct resource *sc_sysio_res; int sc_ign; /* Interrupt group number for this sysio */ struct iommu_state sc_is; /* IOMMU state, see iommureg.h */ struct resource *sc_ot_ires; void *sc_ot_ihand; struct resource *sc_pf_ires; void *sc_pf_ihand; }; struct sbus_clr { struct sbus_softc *scl_sc; bus_addr_t scl_clr; /* clear register */ driver_intr_t *scl_handler; /* handler to call */ void *scl_arg; /* argument for the handler */ void *scl_cookie; /* interrupt cookie of parent bus */ }; #define SYSIO_READ8(sc, off) \ bus_space_read_8((sc)->sc_bustag, (sc)->sc_bushandle, (off)) #define SYSIO_WRITE8(sc, off, v) \ bus_space_write_8((sc)->sc_bustag, (sc)->sc_bushandle, (off), (v)) static int sbus_probe(device_t dev); static int sbus_print_child(device_t dev, device_t child); static void sbus_probe_nomatch(device_t dev, device_t child); static int sbus_read_ivar(device_t, device_t, int, u_long *); static struct resource_list *sbus_get_resource_list(device_t dev, device_t child); static int sbus_setup_intr(device_t, device_t, struct resource *, int, driver_intr_t *, void *, void **); static int sbus_teardown_intr(device_t, device_t, struct resource *, void *); static struct resource *sbus_alloc_resource(device_t, device_t, int, int *, u_long, u_long, u_long, u_int); static int sbus_activate_resource(device_t, device_t, int, int, struct resource *); static int sbus_deactivate_resource(device_t, device_t, int, int, struct resource *); static int sbus_release_resource(device_t, device_t, int, int, struct resource *); static struct sbus_devinfo * sbus_setup_dinfo(struct sbus_softc *sc, phandle_t node, char *name); static void sbus_destroy_dinfo(struct sbus_devinfo *dinfo); static void sbus_intr_stub(void *); static bus_space_tag_t sbus_alloc_bustag(struct sbus_softc *); static void sbus_overtemp(void *); static void sbus_pwrfail(void *); static device_method_t sbus_methods[] = { /* Device interface */ DEVMETHOD(device_probe, sbus_probe), DEVMETHOD(device_attach, bus_generic_attach), /* Bus interface */ DEVMETHOD(bus_print_child, sbus_print_child), DEVMETHOD(bus_probe_nomatch, sbus_probe_nomatch), DEVMETHOD(bus_read_ivar, sbus_read_ivar), DEVMETHOD(bus_setup_intr, sbus_setup_intr), DEVMETHOD(bus_teardown_intr, sbus_teardown_intr), DEVMETHOD(bus_alloc_resource, sbus_alloc_resource), DEVMETHOD(bus_activate_resource, sbus_activate_resource), DEVMETHOD(bus_deactivate_resource, sbus_deactivate_resource), DEVMETHOD(bus_release_resource, sbus_release_resource), DEVMETHOD(bus_get_resource_list, sbus_get_resource_list), DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), { 0, 0 } }; static driver_t sbus_driver = { "sbus", sbus_methods, sizeof(struct sbus_softc), }; static devclass_t sbus_devclass; DRIVER_MODULE(sbus, nexus, sbus_driver, sbus_devclass, 0, 0); #define OFW_SBUS_TYPE "sbus" #define OFW_SBUS_NAME "sbus" static int sbus_probe(device_t dev) { struct sbus_softc *sc = device_get_softc(dev); struct sbus_devinfo *sdi; struct sbus_ranges *range; struct resource *res; device_t cdev; bus_addr_t phys; bus_size_t size; char *name, *cname, *t; phandle_t child, node = nexus_get_node(dev); u_int64_t mr; int intr, clock, rid, vec, i; t = nexus_get_device_type(dev); if (((t == NULL || strcmp(t, OFW_SBUS_TYPE) != 0)) && strcmp(nexus_get_name(dev), OFW_SBUS_NAME) != 0) return (ENXIO); device_set_desc(dev, "U2S UPA-SBus bridge"); if ((sc->sc_nreg = OF_getprop_alloc(node, "reg", sizeof(*sc->sc_reg), (void **)&sc->sc_reg)) == -1) { panic("sbus_probe: error getting reg property"); } if (sc->sc_nreg < 1) panic("sbus_probe: bogus properties"); phys = UPA_REG_PHYS(&sc->sc_reg[0]); size = UPA_REG_SIZE(&sc->sc_reg[0]); rid = 0; sc->sc_sysio_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, phys, phys + size - 1, size, RF_ACTIVE); if (sc->sc_sysio_res == NULL || rman_get_start(sc->sc_sysio_res) != phys) panic("sbus_probe: can't allocate device memory"); sc->sc_bustag = rman_get_bustag(sc->sc_sysio_res); sc->sc_bushandle = rman_get_bushandle(sc->sc_sysio_res); if (OF_getprop(node, "interrupts", &intr, sizeof(intr)) == -1) panic("sbus_probe: cannot get IGN"); sc->sc_ign = intr & INTMAP_IGN_MASK; /* Find interrupt group no */ sc->sc_cbustag = sbus_alloc_bustag(sc); /* * Record clock frequency for synchronous SCSI. * IS THIS THE CORRECT DEFAULT?? */ if (OF_getprop(node, "clock-frequency", &clock, sizeof(clock)) == -1) clock = 25000000; sc->sc_clockfreq = clock; clock /= 1000; device_printf(dev, "clock %d.%03d MHz\n", clock / 1000, clock % 1000); /* * Collect address translations from the OBP. */ if ((sc->sc_nrange = OF_getprop_alloc(node, "ranges", sizeof(*range), (void **)&range)) == -1) { panic("%s: error getting ranges property", device_get_name(dev)); } sc->sc_rd = (struct sbus_rd *)malloc(sizeof(*sc->sc_rd) * sc->sc_nrange, M_DEVBUF, M_NOWAIT); if (sc->sc_rd == NULL) panic("sbus_probe: could not allocate rmans"); /* * Preallocate all space that the SBus bridge decodes, so that nothing * else gets in the way; set up rmans etc. */ for (i = 0; i < sc->sc_nrange; i++) { phys = range[i].poffset | ((bus_addr_t)range[i].pspace << 32); size = range[i].size; sc->sc_rd[i].rd_slot = range[i].cspace; sc->sc_rd[i].rd_coffset = range[i].coffset; sc->sc_rd[i].rd_cend = sc->sc_rd[i].rd_coffset + size; rid = 0; if ((res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, phys, phys + size - 1, size, RF_ACTIVE)) == NULL) panic("sbus_probe: could not allocate decoded range"); sc->sc_rd[i].rd_bushandle = rman_get_bushandle(res); sc->sc_rd[i].rd_rman.rm_type = RMAN_ARRAY; sc->sc_rd[i].rd_rman.rm_descr = "SBus Device Memory"; if (rman_init(&sc->sc_rd[i].rd_rman) != 0 || rman_manage_region(&sc->sc_rd[i].rd_rman, 0, size) != 0) panic("sbus_probe: failed to set up memory rman"); sc->sc_rd[i].rd_poffset = phys; sc->sc_rd[i].rd_pend = phys + size; sc->sc_rd[i].rd_res = res; } free(range, M_OFWPROP); /* * Get the SBus burst transfer size if burst transfers are supported. * XXX: is the default correct? */ if (OF_getprop(node, "burst-sizes", &sc->sc_burst, sizeof(sc->sc_burst)) == -1 || sc->sc_burst == 0) sc->sc_burst = SBUS_BURST_DEF; /* initalise the IOMMU */ /* punch in our copies */ sc->sc_is.is_bustag = sc->sc_bustag; sc->sc_is.is_bushandle = sc->sc_bushandle; sc->sc_is.is_iommu = SBR_IOMMU; sc->sc_is.is_dtag = SBR_IOMMU_TLB_TAG_DIAG; sc->sc_is.is_ddram = SBR_IOMMU_TLB_DATA_DIAG; sc->sc_is.is_dqueue = SBR_IOMMU_QUEUE_DIAG; sc->sc_is.is_dva = SBR_IOMMU_SVADIAG; sc->sc_is.is_dtcmp = 0; sc->sc_is.is_sb[0] = SBR_STRBUF; sc->sc_is.is_sb[1] = 0; /* give us a nice name.. */ name = (char *)malloc(32, M_DEVBUF, M_NOWAIT); if (name == 0) panic("sbus_probe: couldn't malloc iommu name"); snprintf(name, 32, "%s dvma", device_get_name(dev)); /* * Note: the 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 detect bugs we'll allocate and ignore the first entry. */ iommu_init(name, &sc->sc_is, 3, -1, 1); /* Create the DMA tag. */ sc->sc_dmatag = nexus_get_dmatag(dev); if (bus_dma_tag_create(sc->sc_dmatag, 8, 1, 0, 0x3ffffffff, NULL, NULL, 0x3ffffffff, 0xff, 0xffffffff, 0, NULL, NULL, &sc->sc_cdmatag) != 0) panic("bus_dma_tag_create failed"); /* Customize the tag. */ sc->sc_cdmatag->dt_cookie = &sc->sc_is; sc->sc_cdmatag->dt_mt = &iommu_dma_methods; /* XXX: register as root dma tag (kludge). */ sparc64_root_dma_tag = sc->sc_cdmatag; /* Enable the over-temperature and power-fail intrrupts. */ rid = 0; mr = SYSIO_READ8(sc, SBR_THERM_INT_MAP); vec = INTVEC(mr); if ((sc->sc_ot_ires = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, vec, vec, 1, RF_ACTIVE)) == NULL) panic("sbus_probe: failed to get temperature interrupt"); bus_setup_intr(dev, sc->sc_ot_ires, INTR_TYPE_MISC | INTR_FAST, sbus_overtemp, sc, &sc->sc_ot_ihand); SYSIO_WRITE8(sc, SBR_THERM_INT_MAP, INTMAP_ENABLE(mr, PCPU_GET(mid))); rid = 0; mr = SYSIO_READ8(sc, SBR_POWER_INT_MAP); vec = INTVEC(mr); if ((sc->sc_pf_ires = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, vec, vec, 1, RF_ACTIVE)) == NULL) panic("sbus_probe: failed to get power fail interrupt"); bus_setup_intr(dev, sc->sc_pf_ires, INTR_TYPE_MISC | INTR_FAST, sbus_pwrfail, sc, &sc->sc_pf_ihand); SYSIO_WRITE8(sc, SBR_POWER_INT_MAP, INTMAP_ENABLE(mr, PCPU_GET(mid))); /* Initialize the counter-timer. */ sparc64_counter_init(sc->sc_bustag, sc->sc_bushandle, SBR_TC0); /* * Loop through ROM children, fixing any relative addresses * and then configuring each device. * `specials' is an array of device names that are treated * specially: */ for (child = OF_child(node); child != 0; child = OF_peer(child)) { if ((OF_getprop_alloc(child, "name", 1, (void **)&cname)) == -1) continue; if ((sdi = sbus_setup_dinfo(sc, child, cname)) == NULL) { device_printf(dev, "<%s>: incomplete\n", cname); free(cname, M_OFWPROP); continue; } if ((cdev = device_add_child(dev, NULL, -1)) == NULL) panic("sbus_probe: device_add_child failed"); device_set_ivars(cdev, sdi); } return (0); } static struct sbus_devinfo * sbus_setup_dinfo(struct sbus_softc *sc, phandle_t node, char *name) { struct sbus_devinfo *sdi; struct sbus_regs *reg; u_int32_t base, iv, *intr; int i, nreg, nintr, slot, rslot; sdi = malloc(sizeof(*sdi), M_DEVBUF, M_ZERO | M_WAITOK); if (sdi == NULL) return (NULL); resource_list_init(&sdi->sdi_rl); sdi->sdi_name = name; sdi->sdi_node = node; OF_getprop_alloc(node, "compat", 1, (void **)&sdi->sdi_compat); OF_getprop_alloc(node, "device_type", 1, (void **)&sdi->sdi_type); slot = -1; nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®); if (nreg == -1) { if (sdi->sdi_type == NULL || strcmp(sdi->sdi_type, "hierarchical") != 0) { sbus_destroy_dinfo(sdi); return (NULL); } } else { for (i = 0; i < nreg; i++) { base = reg[i].sbr_offset; if (SBUS_ABS(base)) { rslot = SBUS_ABS_TO_SLOT(base); base = SBUS_ABS_TO_OFFSET(base); } else rslot = reg[i].sbr_slot; if (slot != -1 && slot != rslot) panic("sbus_setup_dinfo: multiple slots"); slot = rslot; resource_list_add(&sdi->sdi_rl, SYS_RES_MEMORY, i, base, base + reg[i].sbr_size, reg[i].sbr_size); } free(reg, M_OFWPROP); } sdi->sdi_slot = slot; /* * The `interrupts' property contains the Sbus interrupt level. */ nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr), (void **)&intr); if (nintr != -1) { for (i = 0; i < nintr; i++) { iv = intr[i]; /* * Sbus card devices need the slot number encoded into * the vector as this is generally not done. */ if ((iv & INTMAP_OBIO_MASK) == 0) iv |= slot << 3; /* Set the ign as appropriate. */ iv |= sc->sc_ign; resource_list_add(&sdi->sdi_rl, SYS_RES_IRQ, i, iv, iv, 1); } free(intr, M_OFWPROP); } if (OF_getprop(node, "burst-sizes", &sdi->sdi_burstsz, sizeof(sdi->sdi_burstsz)) == -1) sdi->sdi_burstsz = sc->sc_burst; else sdi->sdi_burstsz &= sc->sc_burst; return (sdi); } /* Free everything except sdi_name, which is handled separately. */ static void sbus_destroy_dinfo(struct sbus_devinfo *dinfo) { resource_list_free(&dinfo->sdi_rl); if (dinfo->sdi_compat != NULL) free(dinfo->sdi_compat, M_OFWPROP); if (dinfo->sdi_type != NULL) free(dinfo->sdi_type, M_OFWPROP); free(dinfo, M_DEVBUF); } static int sbus_print_child(device_t dev, device_t child) { struct sbus_devinfo *dinfo; struct resource_list *rl; int rv; dinfo = device_get_ivars(child); rl = &dinfo->sdi_rl; rv = bus_print_child_header(dev, child); rv += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#lx"); rv += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%ld"); rv += bus_print_child_footer(dev, child); return (rv); } static void sbus_probe_nomatch(device_t dev, device_t child) { char *name; char *type; if (BUS_READ_IVAR(dev, child, SBUS_IVAR_NAME, (uintptr_t *)&name) != 0 || BUS_READ_IVAR(dev, child, SBUS_IVAR_DEVICE_TYPE, (uintptr_t *)&type) != 0) return; if (type == NULL) type = "(unknown)"; device_printf(dev, "<%s>, type %s (no driver attached)\n", name, type); } static int sbus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) { struct sbus_softc *sc = device_get_softc(dev); struct sbus_devinfo *dinfo; if ((dinfo = device_get_ivars(child)) == NULL) return (ENOENT); switch (which) { case SBUS_IVAR_BURSTSZ: *result = dinfo->sdi_burstsz; break; case SBUS_IVAR_CLOCKFREQ: *result = sc->sc_clockfreq; break; case SBUS_IVAR_COMPAT: *result = (uintptr_t)dinfo->sdi_compat; break; case SBUS_IVAR_NAME: *result = (uintptr_t)dinfo->sdi_name; break; case SBUS_IVAR_NODE: *result = dinfo->sdi_node; break; case SBUS_IVAR_SLOT: *result = dinfo->sdi_slot; break; case SBUS_IVAR_DEVICE_TYPE: *result = (uintptr_t)dinfo->sdi_type; break; default: return (ENOENT); } return 0; } static struct resource_list * sbus_get_resource_list(device_t dev, device_t child) { struct sbus_devinfo *sdi; sdi = device_get_ivars(child); return (&sdi->sdi_rl); } /* Write to the correct clr register, and call the actual handler. */ static void sbus_intr_stub(void *arg) { struct sbus_clr *scl; scl = (struct sbus_clr *)arg; scl->scl_handler(scl->scl_arg); SYSIO_WRITE8(scl->scl_sc, scl->scl_clr, 0); } static int sbus_setup_intr(device_t dev, device_t child, struct resource *ires, int flags, driver_intr_t *intr, void *arg, void **cookiep) { struct sbus_softc *sc; struct sbus_clr *scl; bus_addr_t intrmapptr, intrclrptr, intrptr; u_int64_t intrmap; u_int32_t inr, slot; int error, i; long vec = rman_get_start(ires); sc = (struct sbus_softc *)device_get_softc(dev); scl = (struct sbus_clr *)malloc(sizeof(*scl), M_DEVBUF, M_NOWAIT); if (scl == NULL) return (0); intrptr = intrmapptr = intrclrptr = 0; intrmap = 0; inr = INTVEC(vec); if ((inr & INTMAP_OBIO_MASK) == 0) { /* * We're in an SBUS slot, register the map and clear * intr registers. */ slot = INTSLOT(vec); intrmapptr = SBR_SLOT0_INT_MAP + slot * 8; intrclrptr = SBR_SLOT0_INT_CLR + (slot * 8 * 8) + (INTPRI(vec) * 8); /* Enable the interrupt, insert IGN. */ intrmap = inr | sc->sc_ign; } else { intrptr = SBR_SCSI_INT_MAP; /* Insert IGN */ inr |= sc->sc_ign; for (i = 0; intrptr <= SBR_RESERVED_INT_MAP && INTVEC(intrmap = SYSIO_READ8(sc, intrptr)) != INTVEC(inr); intrptr += 8, i++) ; if (INTVEC(intrmap) == INTVEC(inr)) { /* Register the map and clear intr registers */ intrmapptr = intrptr; intrclrptr = SBR_SCSI_INT_CLR + i * 8; /* Enable the interrupt */ } else panic("sbus_setup_intr: IRQ not found!"); } scl->scl_sc = sc; scl->scl_arg = arg; scl->scl_handler = intr; scl->scl_clr = intrclrptr; /* Disable the interrupt while we fiddle with it */ SYSIO_WRITE8(sc, intrmapptr, intrmap); error = BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, sbus_intr_stub, scl, cookiep); if (error != 0) { free(scl, M_DEVBUF); return (error); } scl->scl_cookie = *cookiep; *cookiep = scl; /* * Clear the interrupt, it might have been triggered before it was * set up. */ SYSIO_WRITE8(sc, intrclrptr, 0); /* * Enable the interrupt and program the target module now we have the * handler installed. */ SYSIO_WRITE8(sc, intrmapptr, INTMAP_ENABLE(intrmap, PCPU_GET(mid))); return (error); } static int sbus_teardown_intr(device_t dev, device_t child, struct resource *vec, void *cookie) { struct sbus_clr *scl; int error; scl = (struct sbus_clr *)cookie; error = BUS_TEARDOWN_INTR(device_get_parent(dev), child, vec, scl->scl_cookie); /* * Don't disable the interrupt for now, so that stray interupts get * detected... */ if (error != 0) free(scl, M_DEVBUF); return (error); } /* * There is no need to handle pass-throughs here; there are no bridges to * SBuses. */ static struct resource * sbus_alloc_resource(device_t bus, device_t child, int type, int *rid, u_long start, u_long end, u_long count, u_int flags) { struct sbus_softc *sc; struct sbus_devinfo *sdi; struct rman *rm; struct resource *rv; struct resource_list *rl; struct resource_list_entry *rle; bus_space_handle_t bh; bus_addr_t toffs; bus_size_t tend; int i; int isdefault = (start == 0UL && end == ~0UL); int needactivate = flags & RF_ACTIVE; sc = (struct sbus_softc *)device_get_softc(bus); sdi = device_get_ivars(child); rl = &sdi->sdi_rl; rle = resource_list_find(rl, type, *rid); if (rle == NULL) return (NULL); if (rle->res != NULL) panic("sbus_alloc_resource: resource entry is busy"); if (isdefault) { start = rle->start; count = ulmax(count, rle->count); end = ulmax(rle->end, start + count - 1); } switch (type) { case SYS_RES_IRQ: rv = BUS_ALLOC_RESOURCE(device_get_parent(bus), child, type, rid, start, end, count, flags); if (rv == NULL) return (NULL); break; case SYS_RES_MEMORY: rm = NULL; bh = toffs = tend = 0; for (i = 0; i < sc->sc_nrange; i++) { if (sc->sc_rd[i].rd_slot != sdi->sdi_slot || start < sc->sc_rd[i].rd_coffset || start > sc->sc_rd[i].rd_cend) continue; /* Disallow cross-range allocations. */ if (end > sc->sc_rd[i].rd_cend) return (NULL); /* We've found the connection to the parent bus */ toffs = start - sc->sc_rd[i].rd_coffset; tend = end - sc->sc_rd[i].rd_coffset; rm = &sc->sc_rd[i].rd_rman; bh = sc->sc_rd[i].rd_bushandle; } if (toffs == 0L) return (NULL); flags &= ~RF_ACTIVE; rv = rman_reserve_resource(rm, toffs, tend, count, flags, child); if (rv == NULL) return (NULL); rman_set_bustag(rv, sc->sc_cbustag); rman_set_bushandle(rv, bh + rman_get_start(rv)); if (needactivate) { if (bus_activate_resource(child, type, *rid, rv)) { rman_release_resource(rv); return (NULL); } } break; default: return (NULL); } rle->res = rv; return (rv); } static int sbus_activate_resource(device_t bus, device_t child, int type, int rid, struct resource *r) { if (type == SYS_RES_IRQ) { return (BUS_ACTIVATE_RESOURCE(device_get_parent(bus), child, type, rid, r)); } return (rman_activate_resource(r)); } static int sbus_deactivate_resource(device_t bus, device_t child, int type, int rid, struct resource *r) { if (type == SYS_RES_IRQ) { return (BUS_DEACTIVATE_RESOURCE(device_get_parent(bus), child, type, rid, r)); } return (rman_deactivate_resource(r)); } static int sbus_release_resource(device_t bus, device_t child, int type, int rid, struct resource *r) { struct sbus_devinfo *sdi; struct resource_list_entry *rle; int error = 0; if (type == SYS_RES_IRQ) error = BUS_RELEASE_RESOURCE(device_get_parent(bus), child, type, rid, r); else { if ((rman_get_flags(r) & RF_ACTIVE) != 0) error = bus_deactivate_resource(child, type, rid, r); if (error != 0) return (error); error = rman_release_resource(r); } if (error != 0) return (error); sdi = device_get_ivars(child); rle = resource_list_find(&sdi->sdi_rl, type, rid); if (rle == NULL) panic("sbus_release_resource: can't find resource"); if (rle->res == NULL) panic("sbus_release_resource: resource entry is not busy"); rle->res = NULL; return (0); } /* * 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. */ static void sbus_overtemp(void *arg) { printf("DANGER: OVER TEMPERATURE detected\nShutting down NOW.\n"); shutdown_nice(RB_POWEROFF); } /* Try to shut down in time in case of power failure. */ static void sbus_pwrfail(void *arg) { printf("Power failure detected\nShutting down NOW.\n"); shutdown_nice(0); } static bus_space_tag_t sbus_alloc_bustag(struct sbus_softc *sc) { bus_space_tag_t sbt; sbt = (bus_space_tag_t)malloc(sizeof(struct bus_space_tag), M_DEVBUF, M_NOWAIT | M_ZERO); if (sbt == NULL) panic("sbus_alloc_bustag: out of memory"); bzero(sbt, sizeof *sbt); sbt->bst_cookie = sc; sbt->bst_parent = sc->sc_bustag; sbt->bst_type = SBUS_BUS_SPACE; return (sbt); }