sbus.c revision 152684
190618Stmm/*- 290618Stmm * Copyright (c) 1998 The NetBSD Foundation, Inc. 390618Stmm * All rights reserved. 490618Stmm * 590618Stmm * This code is derived from software contributed to The NetBSD Foundation 690618Stmm * by Paul Kranenburg. 790618Stmm * 890618Stmm * Redistribution and use in source and binary forms, with or without 990618Stmm * modification, are permitted provided that the following conditions 1090618Stmm * are met: 1190618Stmm * 1. Redistributions of source code must retain the above copyright 1290618Stmm * notice, this list of conditions and the following disclaimer. 1390618Stmm * 2. Redistributions in binary form must reproduce the above copyright 1490618Stmm * notice, this list of conditions and the following disclaimer in the 1590618Stmm * documentation and/or other materials provided with the distribution. 1690618Stmm * 3. All advertising materials mentioning features or use of this software 1790618Stmm * must display the following acknowledgement: 1890618Stmm * This product includes software developed by the NetBSD 1990618Stmm * Foundation, Inc. and its contributors. 2090618Stmm * 4. Neither the name of The NetBSD Foundation nor the names of its 2190618Stmm * contributors may be used to endorse or promote products derived 2290618Stmm * from this software without specific prior written permission. 2390618Stmm * 2490618Stmm * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 2590618Stmm * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 2690618Stmm * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2790618Stmm * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 2890618Stmm * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 2990618Stmm * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 3090618Stmm * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 3190618Stmm * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 3290618Stmm * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 3390618Stmm * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 3490618Stmm * POSSIBILITY OF SUCH DAMAGE. 3590618Stmm */ 36139825Simp/*- 3790618Stmm * Copyright (c) 1992, 1993 3890618Stmm * The Regents of the University of California. All rights reserved. 3990618Stmm * 4090618Stmm * This software was developed by the Computer Systems Engineering group 4190618Stmm * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 4290618Stmm * contributed to Berkeley. 4390618Stmm * 4490618Stmm * All advertising materials mentioning features or use of this software 4590618Stmm * must display the following acknowledgement: 4690618Stmm * This product includes software developed by the University of 4790618Stmm * California, Lawrence Berkeley Laboratory. 4890618Stmm * 4990618Stmm * Redistribution and use in source and binary forms, with or without 5090618Stmm * modification, are permitted provided that the following conditions 5190618Stmm * are met: 5290618Stmm * 1. Redistributions of source code must retain the above copyright 5390618Stmm * notice, this list of conditions and the following disclaimer. 5490618Stmm * 2. Redistributions in binary form must reproduce the above copyright 5590618Stmm * notice, this list of conditions and the following disclaimer in the 5690618Stmm * documentation and/or other materials provided with the distribution. 5790618Stmm * 4. Neither the name of the University nor the names of its contributors 5890618Stmm * may be used to endorse or promote products derived from this software 5990618Stmm * without specific prior written permission. 6090618Stmm * 6190618Stmm * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 6290618Stmm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 6390618Stmm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 6490618Stmm * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 6590618Stmm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 6690618Stmm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 6790618Stmm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 6890618Stmm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 6990618Stmm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 7090618Stmm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 7190618Stmm * SUCH DAMAGE. 7290618Stmm */ 73139825Simp/*- 7490618Stmm * Copyright (c) 1999 Eduardo Horvath 7590618Stmm * Copyright (c) 2002 by Thomas Moestl <tmm@FreeBSD.org>. 7690618Stmm * All rights reserved. 7790618Stmm * 7890618Stmm * Redistribution and use in source and binary forms, with or without 7990618Stmm * modification, are permitted provided that the following conditions 8090618Stmm * are met: 8190618Stmm * 1. Redistributions of source code must retain the above copyright 8290618Stmm * notice, this list of conditions and the following disclaimer. 8390618Stmm * 8490618Stmm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 8590618Stmm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 8690618Stmm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 8790618Stmm * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 8890618Stmm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 8990618Stmm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 9090618Stmm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 9190618Stmm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 9290618Stmm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 9390618Stmm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 9490618Stmm * SUCH DAMAGE. 9590618Stmm * 9690618Stmm * from: @(#)sbus.c 8.1 (Berkeley) 6/11/93 9790618Stmm * from: NetBSD: sbus.c,v 1.46 2001/10/07 20:30:41 eeh Exp 9890618Stmm */ 9990618Stmm 100145185Smarius#include <sys/cdefs.h> 101145185Smarius__FBSDID("$FreeBSD: head/sys/sparc64/sbus/sbus.c 152684 2005-11-22 16:39:44Z marius $"); 102145185Smarius 10390618Stmm/* 104145185Smarius * SBus support. 10590618Stmm */ 106131376Smarius 10790618Stmm#include <sys/param.h> 10890618Stmm#include <sys/systm.h> 10990618Stmm#include <sys/bus.h> 11090618Stmm#include <sys/kernel.h> 11190618Stmm#include <sys/malloc.h> 112130068Sphk#include <sys/module.h> 113107477Stmm#include <sys/pcpu.h> 11490618Stmm#include <sys/reboot.h> 11590618Stmm 116133589Smarius#include <dev/ofw/ofw_bus.h> 117152684Smarius#include <dev/ofw/ofw_bus_subr.h> 118119338Simp#include <dev/ofw/openfirm.h> 11990618Stmm 12090618Stmm#include <machine/bus.h> 121116541Stmm#include <machine/bus_private.h> 12290618Stmm#include <machine/iommureg.h> 12390618Stmm#include <machine/bus_common.h> 12490618Stmm#include <machine/intr_machdep.h> 12590618Stmm#include <machine/nexusvar.h> 12690618Stmm#include <machine/ofw_upa.h> 12790618Stmm#include <machine/resource.h> 12890618Stmm 12990618Stmm#include <sys/rman.h> 13090618Stmm 13190618Stmm#include <machine/iommuvar.h> 13290618Stmm 13390618Stmm#include <sparc64/sbus/ofw_sbus.h> 13490618Stmm#include <sparc64/sbus/sbusreg.h> 13590618Stmm#include <sparc64/sbus/sbusvar.h> 13690618Stmm 13790618Stmmstruct sbus_devinfo { 13890618Stmm int sdi_burstsz; 139145186Smarius int sdi_clockfreq; 14090618Stmm int sdi_slot; 14190618Stmm 142152684Smarius struct ofw_bus_devinfo sdi_obdinfo; 14390618Stmm struct resource_list sdi_rl; 14490618Stmm}; 14590618Stmm 14690618Stmm/* Range descriptor, allocated for each sc_range. */ 14790618Stmmstruct sbus_rd { 14890618Stmm bus_addr_t rd_poffset; 14990618Stmm bus_addr_t rd_pend; 15090618Stmm int rd_slot; 15190618Stmm bus_addr_t rd_coffset; 15290618Stmm bus_addr_t rd_cend; 15390618Stmm struct rman rd_rman; 15490618Stmm bus_space_handle_t rd_bushandle; 15590618Stmm struct resource *rd_res; 15690618Stmm}; 15790618Stmm 15890618Stmmstruct sbus_softc { 15990618Stmm bus_space_tag_t sc_bustag; 16090618Stmm bus_space_handle_t sc_bushandle; 16190618Stmm bus_dma_tag_t sc_dmatag; 16290618Stmm bus_dma_tag_t sc_cdmatag; 16390618Stmm bus_space_tag_t sc_cbustag; 16490618Stmm int sc_clockfreq; /* clock frequency (in Hz) */ 16590618Stmm struct upa_regs *sc_reg; 16690618Stmm int sc_nreg; 16790618Stmm int sc_nrange; 16890618Stmm struct sbus_rd *sc_rd; 169145185Smarius int sc_burst; /* burst transfer sizes supp. */ 17090618Stmm 17190618Stmm struct resource *sc_sysio_res; 172145185Smarius int sc_ign; /* IGN for this sysio */ 173145185Smarius struct iommu_state sc_is; /* IOMMU state (iommuvar.h) */ 17490618Stmm 17590618Stmm struct resource *sc_ot_ires; 17690618Stmm void *sc_ot_ihand; 17790618Stmm struct resource *sc_pf_ires; 17890618Stmm void *sc_pf_ihand; 17990618Stmm}; 18090618Stmm 18190618Stmmstruct sbus_clr { 18290618Stmm struct sbus_softc *scl_sc; 183145185Smarius bus_addr_t scl_clr; /* clear register */ 184145185Smarius driver_intr_t *scl_handler; /* handler to call */ 185145185Smarius void *scl_arg; /* argument for the handler */ 186145185Smarius void *scl_cookie; /* parent bus int. cookie */ 18790618Stmm}; 18890618Stmm 18990618Stmm#define SYSIO_READ8(sc, off) \ 19090618Stmm bus_space_read_8((sc)->sc_bustag, (sc)->sc_bushandle, (off)) 19190618Stmm#define SYSIO_WRITE8(sc, off, v) \ 19290618Stmm bus_space_write_8((sc)->sc_bustag, (sc)->sc_bushandle, (off), (v)) 19390618Stmm 194145185Smariusstatic device_probe_t sbus_probe; 195145186Smariusstatic device_attach_t sbus_attach; 196145185Smariusstatic bus_print_child_t sbus_print_child; 197145185Smariusstatic bus_probe_nomatch_t sbus_probe_nomatch; 198145185Smariusstatic bus_read_ivar_t sbus_read_ivar; 199145185Smariusstatic bus_get_resource_list_t sbus_get_resource_list; 200145185Smariusstatic bus_setup_intr_t sbus_setup_intr; 201145185Smariusstatic bus_teardown_intr_t sbus_teardown_intr; 202145185Smariusstatic bus_alloc_resource_t sbus_alloc_resource; 203145185Smariusstatic bus_release_resource_t sbus_release_resource; 204145185Smariusstatic bus_activate_resource_t sbus_activate_resource; 205145185Smariusstatic bus_deactivate_resource_t sbus_deactivate_resource; 206152684Smariusstatic ofw_bus_get_devinfo_t sbus_get_devinfo; 20790618Stmm 208146391Smariusstatic int sbus_inlist(const char *, const char **); 209152684Smariusstatic struct sbus_devinfo * sbus_setup_dinfo(device_t, struct sbus_softc *, 210152684Smarius phandle_t); 211152684Smariusstatic void sbus_destroy_dinfo(struct sbus_devinfo *); 21290618Stmmstatic void sbus_intr_stub(void *); 21390618Stmmstatic bus_space_tag_t sbus_alloc_bustag(struct sbus_softc *); 21490618Stmmstatic void sbus_overtemp(void *); 21590618Stmmstatic void sbus_pwrfail(void *); 216152684Smariusstatic int sbus_print_res(struct sbus_devinfo *); 21790618Stmm 21890618Stmmstatic device_method_t sbus_methods[] = { 21990618Stmm /* Device interface */ 22090618Stmm DEVMETHOD(device_probe, sbus_probe), 221145186Smarius DEVMETHOD(device_attach, sbus_attach), 22290618Stmm 22390618Stmm /* Bus interface */ 22490618Stmm DEVMETHOD(bus_print_child, sbus_print_child), 22590618Stmm DEVMETHOD(bus_probe_nomatch, sbus_probe_nomatch), 22690618Stmm DEVMETHOD(bus_read_ivar, sbus_read_ivar), 22790618Stmm DEVMETHOD(bus_setup_intr, sbus_setup_intr), 22890618Stmm DEVMETHOD(bus_teardown_intr, sbus_teardown_intr), 22990618Stmm DEVMETHOD(bus_alloc_resource, sbus_alloc_resource), 23090618Stmm DEVMETHOD(bus_activate_resource, sbus_activate_resource), 23190618Stmm DEVMETHOD(bus_deactivate_resource, sbus_deactivate_resource), 23290618Stmm DEVMETHOD(bus_release_resource, sbus_release_resource), 23390618Stmm DEVMETHOD(bus_get_resource_list, sbus_get_resource_list), 23490618Stmm DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 23590618Stmm 236133589Smarius /* ofw_bus interface */ 237152684Smarius DEVMETHOD(ofw_bus_get_devinfo, sbus_get_devinfo), 238152684Smarius DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 239152684Smarius DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 240152684Smarius DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 241152684Smarius DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 242152684Smarius DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 243133589Smarius 24490618Stmm { 0, 0 } 24590618Stmm}; 24690618Stmm 24790618Stmmstatic driver_t sbus_driver = { 24890618Stmm "sbus", 24990618Stmm sbus_methods, 25090618Stmm sizeof(struct sbus_softc), 25190618Stmm}; 25290618Stmm 25390618Stmmstatic devclass_t sbus_devclass; 25490618Stmm 25590618StmmDRIVER_MODULE(sbus, nexus, sbus_driver, sbus_devclass, 0, 0); 25690618Stmm 25790618Stmm#define OFW_SBUS_TYPE "sbus" 25890618Stmm#define OFW_SBUS_NAME "sbus" 25990618Stmm 260146391Smariusstatic const char *sbus_order_first[] = { 261146391Smarius "auxio", 262146391Smarius "dma", 263146391Smarius NULL 264146391Smarius}; 265146391Smarius 26690618Stmmstatic int 267146391Smariussbus_inlist(const char *name, const char **list) 268146391Smarius{ 269146391Smarius int i; 270146391Smarius 271146391Smarius if (name == NULL) 272146391Smarius return (0); 273146391Smarius for (i = 0; list[i] != NULL; i++) { 274146391Smarius if (strcmp(name, list[i]) == 0) 275146391Smarius return (1); 276146391Smarius } 277146391Smarius return (0); 278146391Smarius} 279146391Smarius 280146391Smariusstatic int 28190618Stmmsbus_probe(device_t dev) 28290618Stmm{ 283145186Smarius char *t; 284145186Smarius 285145186Smarius t = nexus_get_device_type(dev); 286145186Smarius if (((t == NULL || strcmp(t, OFW_SBUS_TYPE) != 0)) && 287145186Smarius strcmp(nexus_get_name(dev), OFW_SBUS_NAME) != 0) 288145186Smarius return (ENXIO); 289145186Smarius device_set_desc(dev, "U2S UPA-SBus bridge"); 290145186Smarius return (0); 291145186Smarius} 292145186Smarius 293145186Smariusstatic int 294145186Smariussbus_attach(device_t dev) 295145186Smarius{ 296145185Smarius struct sbus_softc *sc; 29790618Stmm struct sbus_devinfo *sdi; 29890618Stmm struct sbus_ranges *range; 29990618Stmm struct resource *res; 30090618Stmm device_t cdev; 30190618Stmm bus_addr_t phys; 30290618Stmm bus_size_t size; 303152684Smarius char *name; 304145185Smarius phandle_t child, node; 30590618Stmm u_int64_t mr; 30690618Stmm int intr, clock, rid, vec, i; 30790618Stmm 308145185Smarius sc = device_get_softc(dev); 309145185Smarius node = nexus_get_node(dev); 310145185Smarius 31190618Stmm if ((sc->sc_nreg = OF_getprop_alloc(node, "reg", sizeof(*sc->sc_reg), 31290618Stmm (void **)&sc->sc_reg)) == -1) { 313145185Smarius panic("%s: error getting reg property", __func__); 31490618Stmm } 31590618Stmm if (sc->sc_nreg < 1) 316145185Smarius panic("%s: bogus properties", __func__); 31790618Stmm phys = UPA_REG_PHYS(&sc->sc_reg[0]); 31890618Stmm size = UPA_REG_SIZE(&sc->sc_reg[0]); 31990618Stmm rid = 0; 32090618Stmm sc->sc_sysio_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, phys, 32190618Stmm phys + size - 1, size, RF_ACTIVE); 32290618Stmm if (sc->sc_sysio_res == NULL || 32390618Stmm rman_get_start(sc->sc_sysio_res) != phys) 324145185Smarius panic("%s: cannot allocate device memory", __func__); 32590618Stmm sc->sc_bustag = rman_get_bustag(sc->sc_sysio_res); 32690618Stmm sc->sc_bushandle = rman_get_bushandle(sc->sc_sysio_res); 32790618Stmm 32890618Stmm if (OF_getprop(node, "interrupts", &intr, sizeof(intr)) == -1) 329145185Smarius panic("%s: cannot get IGN", __func__); 330146391Smarius sc->sc_ign = (intr & INTMAP_IGN_MASK) >> INTMAP_IGN_SHIFT; 33190618Stmm sc->sc_cbustag = sbus_alloc_bustag(sc); 33290618Stmm 33390618Stmm /* 33490618Stmm * Record clock frequency for synchronous SCSI. 33590618Stmm * IS THIS THE CORRECT DEFAULT?? 33690618Stmm */ 33790618Stmm if (OF_getprop(node, "clock-frequency", &clock, sizeof(clock)) == -1) 33890618Stmm clock = 25000000; 33990618Stmm sc->sc_clockfreq = clock; 34090618Stmm clock /= 1000; 34190618Stmm device_printf(dev, "clock %d.%03d MHz\n", clock / 1000, clock % 1000); 34290618Stmm 34390618Stmm /* 34490618Stmm * Collect address translations from the OBP. 34590618Stmm */ 34690618Stmm if ((sc->sc_nrange = OF_getprop_alloc(node, "ranges", 34790618Stmm sizeof(*range), (void **)&range)) == -1) { 348145185Smarius panic("%s: error getting ranges property", __func__); 34990618Stmm } 35090618Stmm sc->sc_rd = (struct sbus_rd *)malloc(sizeof(*sc->sc_rd) * sc->sc_nrange, 35190618Stmm M_DEVBUF, M_NOWAIT); 35290618Stmm if (sc->sc_rd == NULL) 353145185Smarius panic("%s: cannot allocate rmans", __func__); 35490618Stmm /* 35590618Stmm * Preallocate all space that the SBus bridge decodes, so that nothing 35690618Stmm * else gets in the way; set up rmans etc. 35790618Stmm */ 35890618Stmm for (i = 0; i < sc->sc_nrange; i++) { 35990618Stmm phys = range[i].poffset | ((bus_addr_t)range[i].pspace << 32); 36090618Stmm size = range[i].size; 36190618Stmm sc->sc_rd[i].rd_slot = range[i].cspace; 36290618Stmm sc->sc_rd[i].rd_coffset = range[i].coffset; 36390618Stmm sc->sc_rd[i].rd_cend = sc->sc_rd[i].rd_coffset + size; 36490618Stmm rid = 0; 36590618Stmm if ((res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, phys, 36690618Stmm phys + size - 1, size, RF_ACTIVE)) == NULL) 367145185Smarius panic("%s: cannot allocate decoded range", __func__); 36890618Stmm sc->sc_rd[i].rd_bushandle = rman_get_bushandle(res); 36990618Stmm sc->sc_rd[i].rd_rman.rm_type = RMAN_ARRAY; 37090618Stmm sc->sc_rd[i].rd_rman.rm_descr = "SBus Device Memory"; 37190618Stmm if (rman_init(&sc->sc_rd[i].rd_rman) != 0 || 37290618Stmm rman_manage_region(&sc->sc_rd[i].rd_rman, 0, size) != 0) 373145185Smarius panic("%s: failed to set up memory rman", __func__); 37490618Stmm sc->sc_rd[i].rd_poffset = phys; 37590618Stmm sc->sc_rd[i].rd_pend = phys + size; 37690618Stmm sc->sc_rd[i].rd_res = res; 37790618Stmm } 37890618Stmm free(range, M_OFWPROP); 37990618Stmm 38090618Stmm /* 38190618Stmm * Get the SBus burst transfer size if burst transfers are supported. 38290618Stmm * XXX: is the default correct? 38390618Stmm */ 38490618Stmm if (OF_getprop(node, "burst-sizes", &sc->sc_burst, 38590618Stmm sizeof(sc->sc_burst)) == -1 || sc->sc_burst == 0) 38690618Stmm sc->sc_burst = SBUS_BURST_DEF; 38790618Stmm 38890618Stmm /* initalise the IOMMU */ 38990618Stmm 39090618Stmm /* punch in our copies */ 39190618Stmm sc->sc_is.is_bustag = sc->sc_bustag; 39290618Stmm sc->sc_is.is_bushandle = sc->sc_bushandle; 39390618Stmm sc->sc_is.is_iommu = SBR_IOMMU; 39490618Stmm sc->sc_is.is_dtag = SBR_IOMMU_TLB_TAG_DIAG; 39590618Stmm sc->sc_is.is_ddram = SBR_IOMMU_TLB_DATA_DIAG; 39690618Stmm sc->sc_is.is_dqueue = SBR_IOMMU_QUEUE_DIAG; 39790618Stmm sc->sc_is.is_dva = SBR_IOMMU_SVADIAG; 39890618Stmm sc->sc_is.is_dtcmp = 0; 39990618Stmm sc->sc_is.is_sb[0] = SBR_STRBUF; 400123865Sobrien sc->sc_is.is_sb[1] = 0; 40190618Stmm 40290618Stmm /* give us a nice name.. */ 40390618Stmm name = (char *)malloc(32, M_DEVBUF, M_NOWAIT); 404145185Smarius if (name == NULL) 405145185Smarius panic("%s: cannot malloc iommu name", __func__); 40690618Stmm snprintf(name, 32, "%s dvma", device_get_name(dev)); 40790618Stmm 408100188Stmm /* 409100188Stmm * Note: the SBus IOMMU ignores the high bits of an address, so a NULL 410100188Stmm * DMA pointer will be translated by the first page of the IOTSB. 411100188Stmm * To detect bugs we'll allocate and ignore the first entry. 412100188Stmm */ 413114484Stmm iommu_init(name, &sc->sc_is, 3, -1, 1); 41490618Stmm 415116213Stmm /* Create the DMA tag. */ 416116213Stmm sc->sc_dmatag = nexus_get_dmatag(dev); 417116213Stmm if (bus_dma_tag_create(sc->sc_dmatag, 8, 1, 0, 0x3ffffffff, NULL, NULL, 418117126Sscottl 0x3ffffffff, 0xff, 0xffffffff, 0, NULL, NULL, &sc->sc_cdmatag) != 0) 419145185Smarius panic("%s: bus_dma_tag_create failed", __func__); 420116213Stmm /* Customize the tag. */ 421116213Stmm sc->sc_cdmatag->dt_cookie = &sc->sc_is; 422116541Stmm sc->sc_cdmatag->dt_mt = &iommu_dma_methods; 423116213Stmm /* XXX: register as root dma tag (kludge). */ 424116213Stmm sparc64_root_dma_tag = sc->sc_cdmatag; 425116213Stmm 426145185Smarius /* Enable the over-temperature and power-fail interrupts. */ 42790618Stmm rid = 0; 42890618Stmm mr = SYSIO_READ8(sc, SBR_THERM_INT_MAP); 42990618Stmm vec = INTVEC(mr); 43090618Stmm if ((sc->sc_ot_ires = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, vec, 43190618Stmm vec, 1, RF_ACTIVE)) == NULL) 432145185Smarius panic("%s: failed to get temperature interrupt", __func__); 43390618Stmm bus_setup_intr(dev, sc->sc_ot_ires, INTR_TYPE_MISC | INTR_FAST, 43490618Stmm sbus_overtemp, sc, &sc->sc_ot_ihand); 435107477Stmm SYSIO_WRITE8(sc, SBR_THERM_INT_MAP, INTMAP_ENABLE(mr, PCPU_GET(mid))); 43690618Stmm rid = 0; 43790618Stmm mr = SYSIO_READ8(sc, SBR_POWER_INT_MAP); 43890618Stmm vec = INTVEC(mr); 43990618Stmm if ((sc->sc_pf_ires = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, vec, 44090618Stmm vec, 1, RF_ACTIVE)) == NULL) 441145185Smarius panic("%s: failed to get power fail interrupt", __func__); 44290618Stmm bus_setup_intr(dev, sc->sc_pf_ires, INTR_TYPE_MISC | INTR_FAST, 44390618Stmm sbus_pwrfail, sc, &sc->sc_pf_ihand); 444107477Stmm SYSIO_WRITE8(sc, SBR_POWER_INT_MAP, INTMAP_ENABLE(mr, PCPU_GET(mid))); 44590618Stmm 44690618Stmm /* Initialize the counter-timer. */ 44790618Stmm sparc64_counter_init(sc->sc_bustag, sc->sc_bushandle, SBR_TC0); 44890618Stmm 44990618Stmm /* 45090618Stmm * Loop through ROM children, fixing any relative addresses 45190618Stmm * and then configuring each device. 45290618Stmm */ 45390618Stmm for (child = OF_child(node); child != 0; child = OF_peer(child)) { 454152684Smarius if ((sdi = sbus_setup_dinfo(dev, sc, child)) == NULL) 45590618Stmm continue; 456146391Smarius /* 457146391Smarius * For devices where there are variants that are actually 458146391Smarius * split into two SBus devices (as opposed to the first 459146391Smarius * half of the device being a SBus device and the second 460146391Smarius * half hanging off of the first one) like 'auxio' and 461146391Smarius * 'SUNW,fdtwo' or 'dma' and 'esp' probe the SBus device 462146391Smarius * which is a prerequisite to the driver attaching to the 463146391Smarius * second one with a lower order. Saves us from dealing 464146391Smarius * with different probe orders in the respective device 465146391Smarius * drivers which generally is more hackish. 466146391Smarius */ 467146391Smarius cdev = device_add_child_ordered(dev, (OF_child(child) == 0 && 468152684Smarius sbus_inlist(sdi->sdi_obdinfo.obd_name, sbus_order_first)) ? 469152684Smarius SBUS_ORDER_FIRST : SBUS_ORDER_NORMAL, NULL, -1); 470152684Smarius if (cdev == NULL) { 471152684Smarius device_printf(dev, 472152684Smarius "<%s>: device_add_child_ordered failed\n", 473152684Smarius sdi->sdi_obdinfo.obd_name); 474152684Smarius sbus_destroy_dinfo(sdi); 475152684Smarius continue; 476152684Smarius } 47790618Stmm device_set_ivars(cdev, sdi); 47890618Stmm } 479145186Smarius return (bus_generic_attach(dev)); 48090618Stmm} 48190618Stmm 48290618Stmmstatic struct sbus_devinfo * 483152684Smariussbus_setup_dinfo(device_t dev, struct sbus_softc *sc, phandle_t node) 48490618Stmm{ 48590618Stmm struct sbus_devinfo *sdi; 48690618Stmm struct sbus_regs *reg; 48790618Stmm u_int32_t base, iv, *intr; 48890618Stmm int i, nreg, nintr, slot, rslot; 48990618Stmm 490111119Simp sdi = malloc(sizeof(*sdi), M_DEVBUF, M_ZERO | M_WAITOK); 491152684Smarius if (ofw_bus_gen_setup_devinfo(&sdi->sdi_obdinfo, node) != 0) { 492152684Smarius free(sdi, M_DEVBUF); 49390618Stmm return (NULL); 494152684Smarius } 49590618Stmm resource_list_init(&sdi->sdi_rl); 49690618Stmm slot = -1; 49790618Stmm nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®); 49890618Stmm if (nreg == -1) { 499152684Smarius if (sdi->sdi_obdinfo.obd_type == NULL || 500152684Smarius strcmp(sdi->sdi_obdinfo.obd_type, "hierarchical") != 0) { 501152684Smarius device_printf(dev, "<%s>: incomplete\n", 502152684Smarius sdi->sdi_obdinfo.obd_name); 503152684Smarius goto fail; 50490618Stmm } 50590618Stmm } else { 50690618Stmm for (i = 0; i < nreg; i++) { 50790618Stmm base = reg[i].sbr_offset; 50890618Stmm if (SBUS_ABS(base)) { 50990618Stmm rslot = SBUS_ABS_TO_SLOT(base); 51090618Stmm base = SBUS_ABS_TO_OFFSET(base); 51190618Stmm } else 51290618Stmm rslot = reg[i].sbr_slot; 513152684Smarius if (slot != -1 && slot != rslot) { 514152684Smarius device_printf(dev, "<%s>: multiple slots\n", 515152684Smarius sdi->sdi_obdinfo.obd_name); 516152684Smarius free(reg, M_OFWPROP); 517152684Smarius goto fail; 518152684Smarius } 51990618Stmm slot = rslot; 52090618Stmm 52190618Stmm resource_list_add(&sdi->sdi_rl, SYS_RES_MEMORY, i, 52290618Stmm base, base + reg[i].sbr_size, reg[i].sbr_size); 52390618Stmm } 52490618Stmm free(reg, M_OFWPROP); 52590618Stmm } 52690618Stmm sdi->sdi_slot = slot; 52790618Stmm 52890618Stmm /* 529145185Smarius * The `interrupts' property contains the SBus interrupt level. 53090618Stmm */ 531145185Smarius nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr), 532145185Smarius (void **)&intr); 53390618Stmm if (nintr != -1) { 53490618Stmm for (i = 0; i < nintr; i++) { 53590618Stmm iv = intr[i]; 53690618Stmm /* 537145185Smarius * SBus card devices need the slot number encoded into 53890618Stmm * the vector as this is generally not done. 53990618Stmm */ 540107477Stmm if ((iv & INTMAP_OBIO_MASK) == 0) 54190618Stmm iv |= slot << 3; 54290618Stmm /* Set the ign as appropriate. */ 543146391Smarius iv |= sc->sc_ign << INTMAP_IGN_SHIFT; 54490618Stmm resource_list_add(&sdi->sdi_rl, SYS_RES_IRQ, i, 54590618Stmm iv, iv, 1); 54690618Stmm } 54790618Stmm free(intr, M_OFWPROP); 54890618Stmm } 54990618Stmm if (OF_getprop(node, "burst-sizes", &sdi->sdi_burstsz, 55090618Stmm sizeof(sdi->sdi_burstsz)) == -1) 55190618Stmm sdi->sdi_burstsz = sc->sc_burst; 55290618Stmm else 55390618Stmm sdi->sdi_burstsz &= sc->sc_burst; 554145186Smarius if (OF_getprop(node, "clock-frequency", &sdi->sdi_clockfreq, 555145186Smarius sizeof(sdi->sdi_clockfreq)) == -1) 556145186Smarius sdi->sdi_clockfreq = sc->sc_clockfreq; 55790618Stmm 55890618Stmm return (sdi); 559152684Smarius 560152684Smariusfail: 561152684Smarius sbus_destroy_dinfo(sdi); 562152684Smarius return (NULL); 56390618Stmm} 56490618Stmm 56590618Stmmstatic void 56690618Stmmsbus_destroy_dinfo(struct sbus_devinfo *dinfo) 56790618Stmm{ 56890618Stmm 56990618Stmm resource_list_free(&dinfo->sdi_rl); 570152684Smarius ofw_bus_gen_destroy_devinfo(&dinfo->sdi_obdinfo); 57190618Stmm free(dinfo, M_DEVBUF); 57290618Stmm} 57390618Stmm 57490618Stmmstatic int 57590618Stmmsbus_print_child(device_t dev, device_t child) 57690618Stmm{ 57790618Stmm int rv; 57890618Stmm 57990618Stmm rv = bus_print_child_header(dev, child); 580152684Smarius rv += sbus_print_res(device_get_ivars(child)); 58190618Stmm rv += bus_print_child_footer(dev, child); 58290618Stmm return (rv); 58390618Stmm} 58490618Stmm 58590618Stmmstatic void 58690618Stmmsbus_probe_nomatch(device_t dev, device_t child) 58790618Stmm{ 588152684Smarius const char *type; 58990618Stmm 590152684Smarius device_printf(dev, "<%s>", ofw_bus_get_name(child)); 591152684Smarius sbus_print_res(device_get_ivars(child)); 592152684Smarius type = ofw_bus_get_type(child); 593145186Smarius printf(" type %s (no driver attached)\n", 594152684Smarius type != NULL ? type : "unknown"); 59590618Stmm} 59690618Stmm 59790618Stmmstatic int 59890618Stmmsbus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 59990618Stmm{ 600146391Smarius struct sbus_softc *sc; 60190618Stmm struct sbus_devinfo *dinfo; 60290618Stmm 603146391Smarius sc = device_get_softc(dev); 60490618Stmm if ((dinfo = device_get_ivars(child)) == NULL) 60590618Stmm return (ENOENT); 60690618Stmm switch (which) { 60790618Stmm case SBUS_IVAR_BURSTSZ: 60890618Stmm *result = dinfo->sdi_burstsz; 60990618Stmm break; 61090618Stmm case SBUS_IVAR_CLOCKFREQ: 611145186Smarius *result = dinfo->sdi_clockfreq; 61290618Stmm break; 613146391Smarius case SBUS_IVAR_IGN: 614146391Smarius *result = sc->sc_ign; 615146391Smarius break; 61690618Stmm case SBUS_IVAR_SLOT: 61790618Stmm *result = dinfo->sdi_slot; 61890618Stmm break; 61990618Stmm default: 62090618Stmm return (ENOENT); 62190618Stmm } 622146391Smarius return (0); 62390618Stmm} 62490618Stmm 62590618Stmmstatic struct resource_list * 62690618Stmmsbus_get_resource_list(device_t dev, device_t child) 62790618Stmm{ 62890618Stmm struct sbus_devinfo *sdi; 62990618Stmm 63090618Stmm sdi = device_get_ivars(child); 63190618Stmm return (&sdi->sdi_rl); 63290618Stmm} 63390618Stmm 63490618Stmm/* Write to the correct clr register, and call the actual handler. */ 63590618Stmmstatic void 63690618Stmmsbus_intr_stub(void *arg) 63790618Stmm{ 63890618Stmm struct sbus_clr *scl; 63990618Stmm 64090618Stmm scl = (struct sbus_clr *)arg; 64190618Stmm scl->scl_handler(scl->scl_arg); 64290618Stmm SYSIO_WRITE8(scl->scl_sc, scl->scl_clr, 0); 64390618Stmm} 64490618Stmm 64590618Stmmstatic int 646145185Smariussbus_setup_intr(device_t dev, device_t child, struct resource *ires, int flags, 647145185Smarius driver_intr_t *intr, void *arg, void **cookiep) 64890618Stmm{ 64990618Stmm struct sbus_softc *sc; 65090618Stmm struct sbus_clr *scl; 65190618Stmm bus_addr_t intrmapptr, intrclrptr, intrptr; 65290618Stmm u_int64_t intrmap; 65390618Stmm u_int32_t inr, slot; 65490618Stmm int error, i; 65590618Stmm long vec = rman_get_start(ires); 65690618Stmm 657145185Smarius sc = device_get_softc(dev); 65890618Stmm scl = (struct sbus_clr *)malloc(sizeof(*scl), M_DEVBUF, M_NOWAIT); 65990618Stmm if (scl == NULL) 660123865Sobrien return (0); 66190618Stmm intrptr = intrmapptr = intrclrptr = 0; 66290618Stmm intrmap = 0; 663107474Stmm inr = INTVEC(vec); 664107477Stmm if ((inr & INTMAP_OBIO_MASK) == 0) { 665107474Stmm /* 666145185Smarius * We're in an SBus slot, register the map and clear 667107474Stmm * intr registers. 668107474Stmm */ 669107474Stmm slot = INTSLOT(vec); 670107474Stmm intrmapptr = SBR_SLOT0_INT_MAP + slot * 8; 671107474Stmm intrclrptr = SBR_SLOT0_INT_CLR + 672107474Stmm (slot * 8 * 8) + (INTPRI(vec) * 8); 673107474Stmm /* Enable the interrupt, insert IGN. */ 674146391Smarius intrmap = inr | (sc->sc_ign << INTMAP_IGN_SHIFT); 675107474Stmm } else { 676107474Stmm intrptr = SBR_SCSI_INT_MAP; 677107474Stmm /* Insert IGN */ 678146391Smarius inr |= sc->sc_ign << INTMAP_IGN_SHIFT; 679107474Stmm for (i = 0; intrptr <= SBR_RESERVED_INT_MAP && 680107474Stmm INTVEC(intrmap = SYSIO_READ8(sc, intrptr)) != 681107474Stmm INTVEC(inr); intrptr += 8, i++) 682107474Stmm ; 683107474Stmm if (INTVEC(intrmap) == INTVEC(inr)) { 684107474Stmm /* Register the map and clear intr registers */ 685107474Stmm intrmapptr = intrptr; 686107474Stmm intrclrptr = SBR_SCSI_INT_CLR + i * 8; 687107474Stmm /* Enable the interrupt */ 688107474Stmm } else 689145185Smarius panic("%s: IRQ not found!", __func__); 690107474Stmm } 69190618Stmm 69290618Stmm scl->scl_sc = sc; 69390618Stmm scl->scl_arg = arg; 69490618Stmm scl->scl_handler = intr; 69590618Stmm scl->scl_clr = intrclrptr; 69690618Stmm /* Disable the interrupt while we fiddle with it */ 697107474Stmm SYSIO_WRITE8(sc, intrmapptr, intrmap); 69890618Stmm error = BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, 69990618Stmm sbus_intr_stub, scl, cookiep); 70090618Stmm if (error != 0) { 70190618Stmm free(scl, M_DEVBUF); 70290618Stmm return (error); 70390618Stmm } 70490618Stmm scl->scl_cookie = *cookiep; 70590618Stmm *cookiep = scl; 70690618Stmm 70790618Stmm /* 70890618Stmm * Clear the interrupt, it might have been triggered before it was 70990618Stmm * set up. 71090618Stmm */ 711107474Stmm SYSIO_WRITE8(sc, intrclrptr, 0); 71290618Stmm /* 713107477Stmm * Enable the interrupt and program the target module now we have the 714107477Stmm * handler installed. 71590618Stmm */ 716107477Stmm SYSIO_WRITE8(sc, intrmapptr, INTMAP_ENABLE(intrmap, PCPU_GET(mid))); 71790618Stmm return (error); 71890618Stmm} 71990618Stmm 72090618Stmmstatic int 721152684Smariussbus_teardown_intr(device_t dev, device_t child, struct resource *vec, 722152684Smarius void *cookie) 72390618Stmm{ 72490618Stmm struct sbus_clr *scl; 72590618Stmm int error; 72690618Stmm 72790618Stmm scl = (struct sbus_clr *)cookie; 72890618Stmm error = BUS_TEARDOWN_INTR(device_get_parent(dev), child, vec, 72990618Stmm scl->scl_cookie); 73090618Stmm /* 731145185Smarius * Don't disable the interrupt for now, so that stray interrupts get 73290618Stmm * detected... 73390618Stmm */ 73490618Stmm if (error != 0) 73590618Stmm free(scl, M_DEVBUF); 73690618Stmm return (error); 73790618Stmm} 73890618Stmm 73990618Stmmstatic struct resource * 74090618Stmmsbus_alloc_resource(device_t bus, device_t child, int type, int *rid, 74190618Stmm u_long start, u_long end, u_long count, u_int flags) 74290618Stmm{ 74390618Stmm struct sbus_softc *sc; 74490618Stmm struct rman *rm; 74590618Stmm struct resource *rv; 74690618Stmm struct resource_list *rl; 74790618Stmm struct resource_list_entry *rle; 748145186Smarius device_t schild; 74990618Stmm bus_space_handle_t bh; 75090618Stmm bus_addr_t toffs; 75190618Stmm bus_size_t tend; 752145186Smarius int i, slot; 753145186Smarius int isdefault, needactivate, passthrough; 75490618Stmm 755145185Smarius isdefault = (start == 0UL && end == ~0UL); 756145185Smarius needactivate = flags & RF_ACTIVE; 757145186Smarius passthrough = (device_get_parent(child) != bus); 758145186Smarius rle = NULL; 759145186Smarius sc = device_get_softc(bus); 760145186Smarius rl = BUS_GET_RESOURCE_LIST(bus, child); 76190618Stmm switch (type) { 76290618Stmm case SYS_RES_IRQ: 763145186Smarius return (resource_list_alloc(rl, bus, child, type, rid, start, 764145186Smarius end, count, flags)); 76590618Stmm case SYS_RES_MEMORY: 766145186Smarius if (!passthrough) { 767145186Smarius rle = resource_list_find(rl, type, *rid); 768145186Smarius if (rle == NULL) 769145186Smarius return (NULL); 770145186Smarius if (rle->res != NULL) 771145186Smarius panic("%s: resource entry is busy", __func__); 772145186Smarius if (isdefault) { 773145186Smarius start = rle->start; 774145186Smarius count = ulmax(count, rle->count); 775145186Smarius end = ulmax(rle->end, start + count - 1); 776145186Smarius } 777145186Smarius } 77890618Stmm rm = NULL; 77990618Stmm bh = toffs = tend = 0; 780145186Smarius schild = child; 781145186Smarius while (device_get_parent(schild) != bus) 782145186Smarius schild = device_get_parent(child); 783145186Smarius slot = sbus_get_slot(schild); 78490618Stmm for (i = 0; i < sc->sc_nrange; i++) { 785145186Smarius if (sc->sc_rd[i].rd_slot != slot || 78690618Stmm start < sc->sc_rd[i].rd_coffset || 78790618Stmm start > sc->sc_rd[i].rd_cend) 78890618Stmm continue; 78990618Stmm /* Disallow cross-range allocations. */ 79090618Stmm if (end > sc->sc_rd[i].rd_cend) 79190618Stmm return (NULL); 79290618Stmm /* We've found the connection to the parent bus */ 79390618Stmm toffs = start - sc->sc_rd[i].rd_coffset; 79490618Stmm tend = end - sc->sc_rd[i].rd_coffset; 79590618Stmm rm = &sc->sc_rd[i].rd_rman; 79690618Stmm bh = sc->sc_rd[i].rd_bushandle; 79790618Stmm } 798123865Sobrien if (toffs == 0L) 79990618Stmm return (NULL); 80090618Stmm flags &= ~RF_ACTIVE; 80190618Stmm rv = rman_reserve_resource(rm, toffs, tend, count, flags, 80290618Stmm child); 80390618Stmm if (rv == NULL) 80490618Stmm return (NULL); 80590618Stmm rman_set_bustag(rv, sc->sc_cbustag); 80690618Stmm rman_set_bushandle(rv, bh + rman_get_start(rv)); 80790618Stmm if (needactivate) { 80890618Stmm if (bus_activate_resource(child, type, *rid, rv)) { 80990618Stmm rman_release_resource(rv); 81090618Stmm return (NULL); 81190618Stmm } 81290618Stmm } 813145186Smarius if (!passthrough) 814145186Smarius rle->res = rv; 815145186Smarius return (rv); 81690618Stmm default: 81790618Stmm return (NULL); 81890618Stmm } 81990618Stmm} 82090618Stmm 82190618Stmmstatic int 82290618Stmmsbus_activate_resource(device_t bus, device_t child, int type, int rid, 82390618Stmm struct resource *r) 82490618Stmm{ 82590618Stmm 826108798Stmm if (type == SYS_RES_IRQ) { 827108798Stmm return (BUS_ACTIVATE_RESOURCE(device_get_parent(bus), 828108798Stmm child, type, rid, r)); 829108798Stmm } 83090618Stmm return (rman_activate_resource(r)); 83190618Stmm} 83290618Stmm 83390618Stmmstatic int 83490618Stmmsbus_deactivate_resource(device_t bus, device_t child, int type, int rid, 83590618Stmm struct resource *r) 83690618Stmm{ 83790618Stmm 838108798Stmm if (type == SYS_RES_IRQ) { 839108798Stmm return (BUS_DEACTIVATE_RESOURCE(device_get_parent(bus), 840108798Stmm child, type, rid, r)); 841108798Stmm } 84290618Stmm return (rman_deactivate_resource(r)); 84390618Stmm} 84490618Stmm 84590618Stmmstatic int 84690618Stmmsbus_release_resource(device_t bus, device_t child, int type, int rid, 84790618Stmm struct resource *r) 84890618Stmm{ 849145186Smarius struct resource_list *rl; 850108798Stmm struct resource_list_entry *rle; 851145186Smarius int error, passthrough; 85290618Stmm 853145186Smarius passthrough = (device_get_parent(child) != bus); 854145186Smarius rl = BUS_GET_RESOURCE_LIST(bus, child); 85590618Stmm if (type == SYS_RES_IRQ) 856145186Smarius return (resource_list_release(rl, bus, child, type, rid, r)); 857145186Smarius if ((rman_get_flags(r) & RF_ACTIVE) != 0) { 858145186Smarius error = bus_deactivate_resource(child, type, rid, r); 859108798Stmm if (error != 0) 860108798Stmm return (error); 86190618Stmm } 862145186Smarius error = rman_release_resource(r); 863145186Smarius if (error != 0 || passthrough) 864108798Stmm return (error); 865145186Smarius rle = resource_list_find(rl, type, rid); 866108798Stmm if (rle == NULL) 867145185Smarius panic("%s: cannot find resource", __func__); 868108798Stmm if (rle->res == NULL) 869145185Smarius panic("%s: resource entry is not busy", __func__); 870108798Stmm rle->res = NULL; 871108798Stmm return (0); 87290618Stmm} 87390618Stmm 874152684Smariusstatic const struct ofw_bus_devinfo * 875152684Smariussbus_get_devinfo(device_t bus, device_t child) 876152684Smarius{ 877152684Smarius struct sbus_devinfo *sdi; 878152684Smarius 879152684Smarius sdi = device_get_ivars(child); 880152684Smarius return (&sdi->sdi_obdinfo); 881152684Smarius} 882152684Smarius 88390618Stmm/* 88490618Stmm * Handle an overtemp situation. 88590618Stmm * 88690618Stmm * SPARCs have temperature sensors which generate interrupts 88790618Stmm * if the machine's temperature exceeds a certain threshold. 88890618Stmm * This handles the interrupt and powers off the machine. 88990618Stmm * The same needs to be done to PCI controller drivers. 89090618Stmm */ 89190618Stmmstatic void 89290618Stmmsbus_overtemp(void *arg) 89390618Stmm{ 89490618Stmm 89590618Stmm printf("DANGER: OVER TEMPERATURE detected\nShutting down NOW.\n"); 89690618Stmm shutdown_nice(RB_POWEROFF); 89790618Stmm} 89890618Stmm 89990618Stmm/* Try to shut down in time in case of power failure. */ 90090618Stmmstatic void 90190618Stmmsbus_pwrfail(void *arg) 90290618Stmm{ 90390618Stmm 90490618Stmm printf("Power failure detected\nShutting down NOW.\n"); 90590618Stmm shutdown_nice(0); 90690618Stmm} 90790618Stmm 90890618Stmmstatic bus_space_tag_t 90990618Stmmsbus_alloc_bustag(struct sbus_softc *sc) 91090618Stmm{ 91190618Stmm bus_space_tag_t sbt; 91290618Stmm 91390618Stmm sbt = (bus_space_tag_t)malloc(sizeof(struct bus_space_tag), M_DEVBUF, 91490618Stmm M_NOWAIT | M_ZERO); 91590618Stmm if (sbt == NULL) 916145185Smarius panic("%s: out of memory", __func__); 91790618Stmm 918108815Stmm sbt->bst_cookie = sc; 919108815Stmm sbt->bst_parent = sc->sc_bustag; 920108815Stmm sbt->bst_type = SBUS_BUS_SPACE; 92190618Stmm return (sbt); 92290618Stmm} 923133589Smarius 924152684Smariusstatic int 925152684Smariussbus_print_res(struct sbus_devinfo *sdi) 926133589Smarius{ 927152684Smarius int rv; 928133589Smarius 929152684Smarius rv = 0; 930152684Smarius rv += resource_list_print_type(&sdi->sdi_rl, "mem", SYS_RES_MEMORY, 931152684Smarius "%#lx"); 932152684Smarius rv += resource_list_print_type(&sdi->sdi_rl, "irq", SYS_RES_IRQ, 933152684Smarius "%ld"); 934152684Smarius return (rv); 935133589Smarius} 936