sbus.c revision 167308
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>. 76167308Smarius * Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org> 7790618Stmm * All rights reserved. 7890618Stmm * 7990618Stmm * Redistribution and use in source and binary forms, with or without 8090618Stmm * modification, are permitted provided that the following conditions 8190618Stmm * are met: 8290618Stmm * 1. Redistributions of source code must retain the above copyright 8390618Stmm * notice, this list of conditions and the following disclaimer. 8490618Stmm * 8590618Stmm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 8690618Stmm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 8790618Stmm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 8890618Stmm * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 8990618Stmm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 9090618Stmm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 9190618Stmm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 9290618Stmm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 9390618Stmm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 9490618Stmm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 9590618Stmm * SUCH DAMAGE. 9690618Stmm * 9790618Stmm * from: @(#)sbus.c 8.1 (Berkeley) 6/11/93 9890618Stmm * from: NetBSD: sbus.c,v 1.46 2001/10/07 20:30:41 eeh Exp 9990618Stmm */ 10090618Stmm 101145185Smarius#include <sys/cdefs.h> 102145185Smarius__FBSDID("$FreeBSD: head/sys/sparc64/sbus/sbus.c 167308 2007-03-07 21:13:51Z marius $"); 103145185Smarius 10490618Stmm/* 105145185Smarius * SBus support. 10690618Stmm */ 107131376Smarius 10890618Stmm#include <sys/param.h> 10990618Stmm#include <sys/systm.h> 11090618Stmm#include <sys/bus.h> 11190618Stmm#include <sys/kernel.h> 11290618Stmm#include <sys/malloc.h> 113130068Sphk#include <sys/module.h> 114107477Stmm#include <sys/pcpu.h> 11590618Stmm#include <sys/reboot.h> 11690618Stmm 117133589Smarius#include <dev/ofw/ofw_bus.h> 118152684Smarius#include <dev/ofw/ofw_bus_subr.h> 119119338Simp#include <dev/ofw/openfirm.h> 12090618Stmm 12190618Stmm#include <machine/bus.h> 122116541Stmm#include <machine/bus_private.h> 12390618Stmm#include <machine/iommureg.h> 12490618Stmm#include <machine/bus_common.h> 12590618Stmm#include <machine/resource.h> 12690618Stmm 12790618Stmm#include <sys/rman.h> 12890618Stmm 12990618Stmm#include <machine/iommuvar.h> 13090618Stmm 13190618Stmm#include <sparc64/sbus/ofw_sbus.h> 13290618Stmm#include <sparc64/sbus/sbusreg.h> 13390618Stmm#include <sparc64/sbus/sbusvar.h> 13490618Stmm 13590618Stmmstruct sbus_devinfo { 13690618Stmm int sdi_burstsz; 137145186Smarius int sdi_clockfreq; 13890618Stmm int sdi_slot; 13990618Stmm 140152684Smarius struct ofw_bus_devinfo sdi_obdinfo; 14190618Stmm struct resource_list sdi_rl; 14290618Stmm}; 14390618Stmm 14490618Stmm/* Range descriptor, allocated for each sc_range. */ 14590618Stmmstruct sbus_rd { 14690618Stmm bus_addr_t rd_poffset; 14790618Stmm bus_addr_t rd_pend; 14890618Stmm int rd_slot; 14990618Stmm bus_addr_t rd_coffset; 15090618Stmm bus_addr_t rd_cend; 15190618Stmm struct rman rd_rman; 15290618Stmm bus_space_handle_t rd_bushandle; 15390618Stmm struct resource *rd_res; 15490618Stmm}; 15590618Stmm 15690618Stmmstruct sbus_softc { 15790618Stmm bus_space_tag_t sc_bustag; 15890618Stmm bus_space_handle_t sc_bushandle; 15990618Stmm bus_dma_tag_t sc_cdmatag; 16090618Stmm bus_space_tag_t sc_cbustag; 16190618Stmm int sc_clockfreq; /* clock frequency (in Hz) */ 16290618Stmm int sc_nrange; 16390618Stmm struct sbus_rd *sc_rd; 164145185Smarius int sc_burst; /* burst transfer sizes supp. */ 16590618Stmm 16690618Stmm struct resource *sc_sysio_res; 167145185Smarius int sc_ign; /* IGN for this sysio */ 168145185Smarius struct iommu_state sc_is; /* IOMMU state (iommuvar.h) */ 16990618Stmm 17090618Stmm struct resource *sc_ot_ires; 17190618Stmm void *sc_ot_ihand; 17290618Stmm struct resource *sc_pf_ires; 17390618Stmm void *sc_pf_ihand; 17490618Stmm}; 17590618Stmm 17690618Stmmstruct sbus_clr { 17790618Stmm struct sbus_softc *scl_sc; 178145185Smarius bus_addr_t scl_clr; /* clear register */ 179166901Spiso driver_filter_t *scl_handler; /* handler to call */ 180145185Smarius void *scl_arg; /* argument for the handler */ 181145185Smarius void *scl_cookie; /* parent bus int. cookie */ 18290618Stmm}; 18390618Stmm 18490618Stmm#define SYSIO_READ8(sc, off) \ 18590618Stmm bus_space_read_8((sc)->sc_bustag, (sc)->sc_bushandle, (off)) 18690618Stmm#define SYSIO_WRITE8(sc, off, v) \ 18790618Stmm bus_space_write_8((sc)->sc_bustag, (sc)->sc_bushandle, (off), (v)) 18890618Stmm 189145185Smariusstatic device_probe_t sbus_probe; 190145186Smariusstatic device_attach_t sbus_attach; 191145185Smariusstatic bus_print_child_t sbus_print_child; 192145185Smariusstatic bus_probe_nomatch_t sbus_probe_nomatch; 193145185Smariusstatic bus_read_ivar_t sbus_read_ivar; 194145185Smariusstatic bus_get_resource_list_t sbus_get_resource_list; 195145185Smariusstatic bus_setup_intr_t sbus_setup_intr; 196145185Smariusstatic bus_teardown_intr_t sbus_teardown_intr; 197145185Smariusstatic bus_alloc_resource_t sbus_alloc_resource; 198145185Smariusstatic bus_release_resource_t sbus_release_resource; 199145185Smariusstatic bus_activate_resource_t sbus_activate_resource; 200145185Smariusstatic bus_deactivate_resource_t sbus_deactivate_resource; 201167308Smariusstatic bus_get_dma_tag_t sbus_get_dma_tag; 202152684Smariusstatic ofw_bus_get_devinfo_t sbus_get_devinfo; 20390618Stmm 204146391Smariusstatic int sbus_inlist(const char *, const char **); 205152684Smariusstatic struct sbus_devinfo * sbus_setup_dinfo(device_t, struct sbus_softc *, 206152684Smarius phandle_t); 207152684Smariusstatic void sbus_destroy_dinfo(struct sbus_devinfo *); 208167308Smariusstatic driver_filter_t sbus_intr_stub; 20990618Stmmstatic bus_space_tag_t sbus_alloc_bustag(struct sbus_softc *); 210167308Smariusstatic driver_filter_t sbus_overtemp; 211167308Smariusstatic driver_filter_t sbus_pwrfail; 212152684Smariusstatic int sbus_print_res(struct sbus_devinfo *); 21390618Stmm 21490618Stmmstatic device_method_t sbus_methods[] = { 21590618Stmm /* Device interface */ 21690618Stmm DEVMETHOD(device_probe, sbus_probe), 217145186Smarius DEVMETHOD(device_attach, sbus_attach), 218154870Smarius DEVMETHOD(device_shutdown, bus_generic_shutdown), 219154870Smarius DEVMETHOD(device_suspend, bus_generic_suspend), 220154870Smarius DEVMETHOD(device_resume, bus_generic_resume), 22190618Stmm 22290618Stmm /* Bus interface */ 22390618Stmm DEVMETHOD(bus_print_child, sbus_print_child), 22490618Stmm DEVMETHOD(bus_probe_nomatch, sbus_probe_nomatch), 22590618Stmm DEVMETHOD(bus_read_ivar, sbus_read_ivar), 22690618Stmm DEVMETHOD(bus_setup_intr, sbus_setup_intr), 22790618Stmm DEVMETHOD(bus_teardown_intr, sbus_teardown_intr), 22890618Stmm DEVMETHOD(bus_alloc_resource, sbus_alloc_resource), 22990618Stmm DEVMETHOD(bus_activate_resource, sbus_activate_resource), 23090618Stmm DEVMETHOD(bus_deactivate_resource, sbus_deactivate_resource), 23190618Stmm DEVMETHOD(bus_release_resource, sbus_release_resource), 23290618Stmm DEVMETHOD(bus_get_resource_list, sbus_get_resource_list), 23390618Stmm DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 234167308Smarius DEVMETHOD(bus_get_dma_tag, sbus_get_dma_tag), 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{ 283167308Smarius const char *t; 284145186Smarius 285167308Smarius t = ofw_bus_get_type(dev); 286145186Smarius if (((t == NULL || strcmp(t, OFW_SBUS_TYPE) != 0)) && 287167308Smarius strcmp(ofw_bus_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; 300167308Smarius struct resource_list *rl; 30190618Stmm device_t cdev; 30290618Stmm bus_addr_t phys; 30390618Stmm bus_size_t size; 304152684Smarius char *name; 305145185Smarius phandle_t child, node; 30690618Stmm u_int64_t mr; 307167308Smarius int clock, i, intr, rid; 30890618Stmm 309145185Smarius sc = device_get_softc(dev); 310167308Smarius node = ofw_bus_get_node(dev); 311145185Smarius 31290618Stmm rid = 0; 313167308Smarius sc->sc_sysio_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 314167308Smarius RF_ACTIVE); 315167308Smarius if (sc->sc_sysio_res == NULL) 316145185Smarius panic("%s: cannot allocate device memory", __func__); 31790618Stmm sc->sc_bustag = rman_get_bustag(sc->sc_sysio_res); 31890618Stmm sc->sc_bushandle = rman_get_bushandle(sc->sc_sysio_res); 31990618Stmm 32090618Stmm if (OF_getprop(node, "interrupts", &intr, sizeof(intr)) == -1) 321145185Smarius panic("%s: cannot get IGN", __func__); 322146391Smarius sc->sc_ign = (intr & INTMAP_IGN_MASK) >> INTMAP_IGN_SHIFT; 32390618Stmm sc->sc_cbustag = sbus_alloc_bustag(sc); 32490618Stmm 32590618Stmm /* 32690618Stmm * Record clock frequency for synchronous SCSI. 32790618Stmm * IS THIS THE CORRECT DEFAULT?? 32890618Stmm */ 32990618Stmm if (OF_getprop(node, "clock-frequency", &clock, sizeof(clock)) == -1) 33090618Stmm clock = 25000000; 33190618Stmm sc->sc_clockfreq = clock; 33290618Stmm clock /= 1000; 33390618Stmm device_printf(dev, "clock %d.%03d MHz\n", clock / 1000, clock % 1000); 33490618Stmm 33590618Stmm /* 33690618Stmm * Collect address translations from the OBP. 33790618Stmm */ 33890618Stmm if ((sc->sc_nrange = OF_getprop_alloc(node, "ranges", 33990618Stmm sizeof(*range), (void **)&range)) == -1) { 340145185Smarius panic("%s: error getting ranges property", __func__); 34190618Stmm } 34290618Stmm sc->sc_rd = (struct sbus_rd *)malloc(sizeof(*sc->sc_rd) * sc->sc_nrange, 34390618Stmm M_DEVBUF, M_NOWAIT); 34490618Stmm if (sc->sc_rd == NULL) 345145185Smarius panic("%s: cannot allocate rmans", __func__); 34690618Stmm /* 34790618Stmm * Preallocate all space that the SBus bridge decodes, so that nothing 34890618Stmm * else gets in the way; set up rmans etc. 34990618Stmm */ 350167308Smarius rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev); 35190618Stmm for (i = 0; i < sc->sc_nrange; i++) { 35290618Stmm phys = range[i].poffset | ((bus_addr_t)range[i].pspace << 32); 35390618Stmm size = range[i].size; 35490618Stmm sc->sc_rd[i].rd_slot = range[i].cspace; 35590618Stmm sc->sc_rd[i].rd_coffset = range[i].coffset; 35690618Stmm sc->sc_rd[i].rd_cend = sc->sc_rd[i].rd_coffset + size; 357167308Smarius rid = resource_list_add_next(rl, SYS_RES_MEMORY, phys, 358167308Smarius phys + size - 1, size); 359167308Smarius if ((res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 360167308Smarius RF_ACTIVE)) == NULL) 361145185Smarius panic("%s: cannot allocate decoded range", __func__); 36290618Stmm sc->sc_rd[i].rd_bushandle = rman_get_bushandle(res); 36390618Stmm sc->sc_rd[i].rd_rman.rm_type = RMAN_ARRAY; 36490618Stmm sc->sc_rd[i].rd_rman.rm_descr = "SBus Device Memory"; 36590618Stmm if (rman_init(&sc->sc_rd[i].rd_rman) != 0 || 36690618Stmm rman_manage_region(&sc->sc_rd[i].rd_rman, 0, size) != 0) 367145185Smarius panic("%s: failed to set up memory rman", __func__); 36890618Stmm sc->sc_rd[i].rd_poffset = phys; 36990618Stmm sc->sc_rd[i].rd_pend = phys + size; 37090618Stmm sc->sc_rd[i].rd_res = res; 37190618Stmm } 37290618Stmm free(range, M_OFWPROP); 37390618Stmm 37490618Stmm /* 37590618Stmm * Get the SBus burst transfer size if burst transfers are supported. 37690618Stmm * XXX: is the default correct? 37790618Stmm */ 37890618Stmm if (OF_getprop(node, "burst-sizes", &sc->sc_burst, 37990618Stmm sizeof(sc->sc_burst)) == -1 || sc->sc_burst == 0) 38090618Stmm sc->sc_burst = SBUS_BURST_DEF; 38190618Stmm 38290618Stmm /* initalise the IOMMU */ 38390618Stmm 38490618Stmm /* punch in our copies */ 38590618Stmm sc->sc_is.is_bustag = sc->sc_bustag; 38690618Stmm sc->sc_is.is_bushandle = sc->sc_bushandle; 38790618Stmm sc->sc_is.is_iommu = SBR_IOMMU; 38890618Stmm sc->sc_is.is_dtag = SBR_IOMMU_TLB_TAG_DIAG; 38990618Stmm sc->sc_is.is_ddram = SBR_IOMMU_TLB_DATA_DIAG; 39090618Stmm sc->sc_is.is_dqueue = SBR_IOMMU_QUEUE_DIAG; 39190618Stmm sc->sc_is.is_dva = SBR_IOMMU_SVADIAG; 39290618Stmm sc->sc_is.is_dtcmp = 0; 39390618Stmm sc->sc_is.is_sb[0] = SBR_STRBUF; 394123865Sobrien sc->sc_is.is_sb[1] = 0; 39590618Stmm 39690618Stmm /* give us a nice name.. */ 39790618Stmm name = (char *)malloc(32, M_DEVBUF, M_NOWAIT); 398145185Smarius if (name == NULL) 399145185Smarius panic("%s: cannot malloc iommu name", __func__); 40090618Stmm snprintf(name, 32, "%s dvma", device_get_name(dev)); 40190618Stmm 402100188Stmm /* 403100188Stmm * Note: the SBus IOMMU ignores the high bits of an address, so a NULL 404100188Stmm * DMA pointer will be translated by the first page of the IOTSB. 405100188Stmm * To detect bugs we'll allocate and ignore the first entry. 406100188Stmm */ 407114484Stmm iommu_init(name, &sc->sc_is, 3, -1, 1); 40890618Stmm 409116213Stmm /* Create the DMA tag. */ 410167308Smarius if (bus_dma_tag_create(bus_get_dma_tag(dev), 8, 0, IOMMU_MAXADDR, ~0, 411167308Smarius NULL, NULL, IOMMU_MAXADDR, 0xff, 0xffffffff, 0, NULL, NULL, 412167308Smarius &sc->sc_cdmatag) != 0) 413145185Smarius panic("%s: bus_dma_tag_create failed", __func__); 414116213Stmm /* Customize the tag. */ 415116213Stmm sc->sc_cdmatag->dt_cookie = &sc->sc_is; 416116541Stmm sc->sc_cdmatag->dt_mt = &iommu_dma_methods; 417116213Stmm 418145185Smarius /* Enable the over-temperature and power-fail interrupts. */ 419167308Smarius rid = 4; 42090618Stmm mr = SYSIO_READ8(sc, SBR_THERM_INT_MAP); 421167308Smarius sc->sc_ot_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 422167308Smarius RF_ACTIVE); 423166034Smarius if (sc->sc_ot_ires == NULL || 424167308Smarius rman_get_start(sc->sc_ot_ires) != INTVEC(mr) || 425166901Spiso bus_setup_intr(dev, sc->sc_ot_ires, INTR_TYPE_MISC, 426166901Spiso sbus_overtemp, NULL, sc, &sc->sc_ot_ihand) != 0) 427166034Smarius panic("%s: failed to set up temperature interrupt", __func__); 428107477Stmm SYSIO_WRITE8(sc, SBR_THERM_INT_MAP, INTMAP_ENABLE(mr, PCPU_GET(mid))); 429167308Smarius rid = 3; 43090618Stmm mr = SYSIO_READ8(sc, SBR_POWER_INT_MAP); 431167308Smarius sc->sc_pf_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 432167308Smarius RF_ACTIVE); 433166034Smarius if (sc->sc_pf_ires == NULL || 434167308Smarius rman_get_start(sc->sc_pf_ires) != INTVEC(mr) || 435166901Spiso bus_setup_intr(dev, sc->sc_pf_ires, INTR_TYPE_MISC, 436166901Spiso sbus_pwrfail, NULL, sc, &sc->sc_pf_ihand) != 0) 437166034Smarius panic("%s: failed to set up power fail interrupt", __func__); 438107477Stmm SYSIO_WRITE8(sc, SBR_POWER_INT_MAP, INTMAP_ENABLE(mr, PCPU_GET(mid))); 43990618Stmm 44090618Stmm /* Initialize the counter-timer. */ 44190618Stmm sparc64_counter_init(sc->sc_bustag, sc->sc_bushandle, SBR_TC0); 44290618Stmm 44390618Stmm /* 44490618Stmm * Loop through ROM children, fixing any relative addresses 44590618Stmm * and then configuring each device. 44690618Stmm */ 44790618Stmm for (child = OF_child(node); child != 0; child = OF_peer(child)) { 448152684Smarius if ((sdi = sbus_setup_dinfo(dev, sc, child)) == NULL) 44990618Stmm continue; 450146391Smarius /* 451146391Smarius * For devices where there are variants that are actually 452146391Smarius * split into two SBus devices (as opposed to the first 453146391Smarius * half of the device being a SBus device and the second 454146391Smarius * half hanging off of the first one) like 'auxio' and 455146391Smarius * 'SUNW,fdtwo' or 'dma' and 'esp' probe the SBus device 456146391Smarius * which is a prerequisite to the driver attaching to the 457146391Smarius * second one with a lower order. Saves us from dealing 458146391Smarius * with different probe orders in the respective device 459146391Smarius * drivers which generally is more hackish. 460146391Smarius */ 461146391Smarius cdev = device_add_child_ordered(dev, (OF_child(child) == 0 && 462152684Smarius sbus_inlist(sdi->sdi_obdinfo.obd_name, sbus_order_first)) ? 463152684Smarius SBUS_ORDER_FIRST : SBUS_ORDER_NORMAL, NULL, -1); 464152684Smarius if (cdev == NULL) { 465152684Smarius device_printf(dev, 466152684Smarius "<%s>: device_add_child_ordered failed\n", 467152684Smarius sdi->sdi_obdinfo.obd_name); 468152684Smarius sbus_destroy_dinfo(sdi); 469152684Smarius continue; 470152684Smarius } 47190618Stmm device_set_ivars(cdev, sdi); 47290618Stmm } 473145186Smarius return (bus_generic_attach(dev)); 47490618Stmm} 47590618Stmm 47690618Stmmstatic struct sbus_devinfo * 477152684Smariussbus_setup_dinfo(device_t dev, struct sbus_softc *sc, phandle_t node) 47890618Stmm{ 47990618Stmm struct sbus_devinfo *sdi; 48090618Stmm struct sbus_regs *reg; 48190618Stmm u_int32_t base, iv, *intr; 48290618Stmm int i, nreg, nintr, slot, rslot; 48390618Stmm 484111119Simp sdi = malloc(sizeof(*sdi), M_DEVBUF, M_ZERO | M_WAITOK); 485152684Smarius if (ofw_bus_gen_setup_devinfo(&sdi->sdi_obdinfo, node) != 0) { 486152684Smarius free(sdi, M_DEVBUF); 48790618Stmm return (NULL); 488152684Smarius } 48990618Stmm resource_list_init(&sdi->sdi_rl); 49090618Stmm slot = -1; 49190618Stmm nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®); 49290618Stmm if (nreg == -1) { 493152684Smarius if (sdi->sdi_obdinfo.obd_type == NULL || 494152684Smarius strcmp(sdi->sdi_obdinfo.obd_type, "hierarchical") != 0) { 495152684Smarius device_printf(dev, "<%s>: incomplete\n", 496152684Smarius sdi->sdi_obdinfo.obd_name); 497152684Smarius goto fail; 49890618Stmm } 49990618Stmm } else { 50090618Stmm for (i = 0; i < nreg; i++) { 50190618Stmm base = reg[i].sbr_offset; 50290618Stmm if (SBUS_ABS(base)) { 50390618Stmm rslot = SBUS_ABS_TO_SLOT(base); 50490618Stmm base = SBUS_ABS_TO_OFFSET(base); 50590618Stmm } else 50690618Stmm rslot = reg[i].sbr_slot; 507152684Smarius if (slot != -1 && slot != rslot) { 508152684Smarius device_printf(dev, "<%s>: multiple slots\n", 509152684Smarius sdi->sdi_obdinfo.obd_name); 510152684Smarius free(reg, M_OFWPROP); 511152684Smarius goto fail; 512152684Smarius } 51390618Stmm slot = rslot; 51490618Stmm 51590618Stmm resource_list_add(&sdi->sdi_rl, SYS_RES_MEMORY, i, 51690618Stmm base, base + reg[i].sbr_size, reg[i].sbr_size); 51790618Stmm } 51890618Stmm free(reg, M_OFWPROP); 51990618Stmm } 52090618Stmm sdi->sdi_slot = slot; 52190618Stmm 52290618Stmm /* 523145185Smarius * The `interrupts' property contains the SBus interrupt level. 52490618Stmm */ 525145185Smarius nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr), 526145185Smarius (void **)&intr); 52790618Stmm if (nintr != -1) { 52890618Stmm for (i = 0; i < nintr; i++) { 52990618Stmm iv = intr[i]; 53090618Stmm /* 531145185Smarius * SBus card devices need the slot number encoded into 53290618Stmm * the vector as this is generally not done. 53390618Stmm */ 534107477Stmm if ((iv & INTMAP_OBIO_MASK) == 0) 53590618Stmm iv |= slot << 3; 53690618Stmm /* Set the ign as appropriate. */ 537146391Smarius iv |= sc->sc_ign << INTMAP_IGN_SHIFT; 53890618Stmm resource_list_add(&sdi->sdi_rl, SYS_RES_IRQ, i, 53990618Stmm iv, iv, 1); 54090618Stmm } 54190618Stmm free(intr, M_OFWPROP); 54290618Stmm } 54390618Stmm if (OF_getprop(node, "burst-sizes", &sdi->sdi_burstsz, 54490618Stmm sizeof(sdi->sdi_burstsz)) == -1) 54590618Stmm sdi->sdi_burstsz = sc->sc_burst; 54690618Stmm else 54790618Stmm sdi->sdi_burstsz &= sc->sc_burst; 548145186Smarius if (OF_getprop(node, "clock-frequency", &sdi->sdi_clockfreq, 549145186Smarius sizeof(sdi->sdi_clockfreq)) == -1) 550145186Smarius sdi->sdi_clockfreq = sc->sc_clockfreq; 55190618Stmm 55290618Stmm return (sdi); 553152684Smarius 554152684Smariusfail: 555152684Smarius sbus_destroy_dinfo(sdi); 556152684Smarius return (NULL); 55790618Stmm} 55890618Stmm 55990618Stmmstatic void 56090618Stmmsbus_destroy_dinfo(struct sbus_devinfo *dinfo) 56190618Stmm{ 56290618Stmm 56390618Stmm resource_list_free(&dinfo->sdi_rl); 564152684Smarius ofw_bus_gen_destroy_devinfo(&dinfo->sdi_obdinfo); 56590618Stmm free(dinfo, M_DEVBUF); 56690618Stmm} 56790618Stmm 56890618Stmmstatic int 56990618Stmmsbus_print_child(device_t dev, device_t child) 57090618Stmm{ 57190618Stmm int rv; 57290618Stmm 57390618Stmm rv = bus_print_child_header(dev, child); 574152684Smarius rv += sbus_print_res(device_get_ivars(child)); 57590618Stmm rv += bus_print_child_footer(dev, child); 57690618Stmm return (rv); 57790618Stmm} 57890618Stmm 57990618Stmmstatic void 58090618Stmmsbus_probe_nomatch(device_t dev, device_t child) 58190618Stmm{ 582152684Smarius const char *type; 58390618Stmm 584152684Smarius device_printf(dev, "<%s>", ofw_bus_get_name(child)); 585152684Smarius sbus_print_res(device_get_ivars(child)); 586152684Smarius type = ofw_bus_get_type(child); 587145186Smarius printf(" type %s (no driver attached)\n", 588152684Smarius type != NULL ? type : "unknown"); 58990618Stmm} 59090618Stmm 59190618Stmmstatic int 59290618Stmmsbus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 59390618Stmm{ 594146391Smarius struct sbus_softc *sc; 59590618Stmm struct sbus_devinfo *dinfo; 59690618Stmm 597146391Smarius sc = device_get_softc(dev); 59890618Stmm if ((dinfo = device_get_ivars(child)) == NULL) 59990618Stmm return (ENOENT); 60090618Stmm switch (which) { 60190618Stmm case SBUS_IVAR_BURSTSZ: 60290618Stmm *result = dinfo->sdi_burstsz; 60390618Stmm break; 60490618Stmm case SBUS_IVAR_CLOCKFREQ: 605145186Smarius *result = dinfo->sdi_clockfreq; 60690618Stmm break; 607146391Smarius case SBUS_IVAR_IGN: 608146391Smarius *result = sc->sc_ign; 609146391Smarius break; 61090618Stmm case SBUS_IVAR_SLOT: 61190618Stmm *result = dinfo->sdi_slot; 61290618Stmm break; 61390618Stmm default: 61490618Stmm return (ENOENT); 61590618Stmm } 616146391Smarius return (0); 61790618Stmm} 61890618Stmm 61990618Stmmstatic struct resource_list * 62090618Stmmsbus_get_resource_list(device_t dev, device_t child) 62190618Stmm{ 62290618Stmm struct sbus_devinfo *sdi; 62390618Stmm 62490618Stmm sdi = device_get_ivars(child); 62590618Stmm return (&sdi->sdi_rl); 62690618Stmm} 62790618Stmm 62890618Stmm/* Write to the correct clr register, and call the actual handler. */ 629166901Spisostatic int 63090618Stmmsbus_intr_stub(void *arg) 63190618Stmm{ 63290618Stmm struct sbus_clr *scl; 63390618Stmm 63490618Stmm scl = (struct sbus_clr *)arg; 63590618Stmm scl->scl_handler(scl->scl_arg); 63690618Stmm SYSIO_WRITE8(scl->scl_sc, scl->scl_clr, 0); 637166901Spiso return (FILTER_HANDLED); 63890618Stmm} 63990618Stmm 64090618Stmmstatic int 641145185Smariussbus_setup_intr(device_t dev, device_t child, struct resource *ires, int flags, 642166901Spiso driver_filter_t *filt, driver_intr_t *intr, void *arg, void **cookiep) 64390618Stmm{ 64490618Stmm struct sbus_softc *sc; 64590618Stmm struct sbus_clr *scl; 64690618Stmm bus_addr_t intrmapptr, intrclrptr, intrptr; 64790618Stmm u_int64_t intrmap; 64890618Stmm u_int32_t inr, slot; 64990618Stmm int error, i; 650159413Smarius long vec; 65190618Stmm 652166901Spiso if (filt != NULL && intr != NULL) 653166901Spiso return (EINVAL); 654145185Smarius sc = device_get_softc(dev); 65590618Stmm scl = (struct sbus_clr *)malloc(sizeof(*scl), M_DEVBUF, M_NOWAIT); 65690618Stmm if (scl == NULL) 657159413Smarius return (ENOMEM); 65890618Stmm intrptr = intrmapptr = intrclrptr = 0; 65990618Stmm intrmap = 0; 660159413Smarius vec = rman_get_start(ires); 661107474Stmm inr = INTVEC(vec); 662107477Stmm if ((inr & INTMAP_OBIO_MASK) == 0) { 663107474Stmm /* 664145185Smarius * We're in an SBus slot, register the map and clear 665107474Stmm * intr registers. 666107474Stmm */ 667107474Stmm slot = INTSLOT(vec); 668107474Stmm intrmapptr = SBR_SLOT0_INT_MAP + slot * 8; 669107474Stmm intrclrptr = SBR_SLOT0_INT_CLR + 670107474Stmm (slot * 8 * 8) + (INTPRI(vec) * 8); 671107474Stmm /* Enable the interrupt, insert IGN. */ 672146391Smarius intrmap = inr | (sc->sc_ign << INTMAP_IGN_SHIFT); 673107474Stmm } else { 674107474Stmm intrptr = SBR_SCSI_INT_MAP; 675107474Stmm /* Insert IGN */ 676146391Smarius inr |= sc->sc_ign << INTMAP_IGN_SHIFT; 677107474Stmm for (i = 0; intrptr <= SBR_RESERVED_INT_MAP && 678159413Smarius INTVEC(intrmap = SYSIO_READ8(sc, intrptr)) != inr; 679159413Smarius intrptr += 8, i++) 680107474Stmm ; 681159413Smarius if (INTVEC(intrmap) == inr) { 682107474Stmm /* Register the map and clear intr registers */ 683107474Stmm intrmapptr = intrptr; 684107474Stmm intrclrptr = SBR_SCSI_INT_CLR + i * 8; 685107474Stmm /* Enable the interrupt */ 686107474Stmm } else 687145185Smarius panic("%s: IRQ not found!", __func__); 688107474Stmm } 68990618Stmm 69090618Stmm scl->scl_sc = sc; 69190618Stmm scl->scl_arg = arg; 692166901Spiso scl->scl_handler = (filt != NULL) ? filt : (driver_filter_t *)intr; 69390618Stmm scl->scl_clr = intrclrptr; 69490618Stmm /* Disable the interrupt while we fiddle with it */ 695159413Smarius SYSIO_WRITE8(sc, intrmapptr, intrmap & ~INTMAP_V); 696166901Spiso if (filt != NULL) 697166901Spiso error = BUS_SETUP_INTR(device_get_parent(dev), child, ires, 698166901Spiso flags, sbus_intr_stub, NULL, scl, cookiep); 699166901Spiso else 700166901Spiso error = BUS_SETUP_INTR(device_get_parent(dev), child, ires, 701166901Spiso flags, NULL, (driver_intr_t *)sbus_intr_stub, scl, 702166901Spiso cookiep); 70390618Stmm if (error != 0) { 70490618Stmm free(scl, M_DEVBUF); 70590618Stmm return (error); 70690618Stmm } 70790618Stmm scl->scl_cookie = *cookiep; 70890618Stmm *cookiep = scl; 70990618Stmm 71090618Stmm /* 71190618Stmm * Clear the interrupt, it might have been triggered before it was 71290618Stmm * set up. 71390618Stmm */ 714107474Stmm SYSIO_WRITE8(sc, intrclrptr, 0); 71590618Stmm /* 716107477Stmm * Enable the interrupt and program the target module now we have the 717107477Stmm * handler installed. 71890618Stmm */ 719107477Stmm SYSIO_WRITE8(sc, intrmapptr, INTMAP_ENABLE(intrmap, PCPU_GET(mid))); 72090618Stmm return (error); 72190618Stmm} 72290618Stmm 72390618Stmmstatic int 724152684Smariussbus_teardown_intr(device_t dev, device_t child, struct resource *vec, 725152684Smarius void *cookie) 72690618Stmm{ 72790618Stmm struct sbus_clr *scl; 72890618Stmm int error; 72990618Stmm 73090618Stmm scl = (struct sbus_clr *)cookie; 73190618Stmm error = BUS_TEARDOWN_INTR(device_get_parent(dev), child, vec, 73290618Stmm scl->scl_cookie); 73390618Stmm /* 734145185Smarius * Don't disable the interrupt for now, so that stray interrupts get 73590618Stmm * detected... 73690618Stmm */ 73790618Stmm if (error != 0) 73890618Stmm free(scl, M_DEVBUF); 73990618Stmm return (error); 74090618Stmm} 74190618Stmm 74290618Stmmstatic struct resource * 74390618Stmmsbus_alloc_resource(device_t bus, device_t child, int type, int *rid, 74490618Stmm u_long start, u_long end, u_long count, u_int flags) 74590618Stmm{ 74690618Stmm struct sbus_softc *sc; 74790618Stmm struct rman *rm; 74890618Stmm struct resource *rv; 74990618Stmm struct resource_list *rl; 75090618Stmm struct resource_list_entry *rle; 751145186Smarius device_t schild; 75290618Stmm bus_space_handle_t bh; 75390618Stmm bus_addr_t toffs; 75490618Stmm bus_size_t tend; 755145186Smarius int i, slot; 756145186Smarius int isdefault, needactivate, passthrough; 75790618Stmm 758145185Smarius isdefault = (start == 0UL && end == ~0UL); 759145185Smarius needactivate = flags & RF_ACTIVE; 760145186Smarius passthrough = (device_get_parent(child) != bus); 761145186Smarius rle = NULL; 762145186Smarius sc = device_get_softc(bus); 763145186Smarius rl = BUS_GET_RESOURCE_LIST(bus, child); 76490618Stmm switch (type) { 76590618Stmm case SYS_RES_IRQ: 766145186Smarius return (resource_list_alloc(rl, bus, child, type, rid, start, 767145186Smarius end, count, flags)); 76890618Stmm case SYS_RES_MEMORY: 769145186Smarius if (!passthrough) { 770145186Smarius rle = resource_list_find(rl, type, *rid); 771145186Smarius if (rle == NULL) 772145186Smarius return (NULL); 773145186Smarius if (rle->res != NULL) 774145186Smarius panic("%s: resource entry is busy", __func__); 775145186Smarius if (isdefault) { 776145186Smarius start = rle->start; 777145186Smarius count = ulmax(count, rle->count); 778145186Smarius end = ulmax(rle->end, start + count - 1); 779145186Smarius } 780145186Smarius } 78190618Stmm rm = NULL; 78290618Stmm bh = toffs = tend = 0; 783145186Smarius schild = child; 784145186Smarius while (device_get_parent(schild) != bus) 785145186Smarius schild = device_get_parent(child); 786145186Smarius slot = sbus_get_slot(schild); 78790618Stmm for (i = 0; i < sc->sc_nrange; i++) { 788145186Smarius if (sc->sc_rd[i].rd_slot != slot || 78990618Stmm start < sc->sc_rd[i].rd_coffset || 79090618Stmm start > sc->sc_rd[i].rd_cend) 79190618Stmm continue; 79290618Stmm /* Disallow cross-range allocations. */ 79390618Stmm if (end > sc->sc_rd[i].rd_cend) 79490618Stmm return (NULL); 79590618Stmm /* We've found the connection to the parent bus */ 79690618Stmm toffs = start - sc->sc_rd[i].rd_coffset; 79790618Stmm tend = end - sc->sc_rd[i].rd_coffset; 79890618Stmm rm = &sc->sc_rd[i].rd_rman; 79990618Stmm bh = sc->sc_rd[i].rd_bushandle; 800159413Smarius break; 80190618Stmm } 802159413Smarius if (rm == NULL) 80390618Stmm return (NULL); 80490618Stmm flags &= ~RF_ACTIVE; 80590618Stmm rv = rman_reserve_resource(rm, toffs, tend, count, flags, 80690618Stmm child); 80790618Stmm if (rv == NULL) 80890618Stmm return (NULL); 809157896Simp rman_set_rid(rv, *rid); 81090618Stmm rman_set_bustag(rv, sc->sc_cbustag); 81190618Stmm rman_set_bushandle(rv, bh + rman_get_start(rv)); 81290618Stmm if (needactivate) { 81390618Stmm if (bus_activate_resource(child, type, *rid, rv)) { 81490618Stmm rman_release_resource(rv); 81590618Stmm return (NULL); 81690618Stmm } 81790618Stmm } 818145186Smarius if (!passthrough) 819145186Smarius rle->res = rv; 820145186Smarius return (rv); 82190618Stmm default: 82290618Stmm return (NULL); 82390618Stmm } 82490618Stmm} 82590618Stmm 82690618Stmmstatic int 82790618Stmmsbus_activate_resource(device_t bus, device_t child, int type, int rid, 82890618Stmm struct resource *r) 82990618Stmm{ 830159413Smarius void *p; 831159413Smarius int error; 83290618Stmm 833108798Stmm if (type == SYS_RES_IRQ) { 834108798Stmm return (BUS_ACTIVATE_RESOURCE(device_get_parent(bus), 835108798Stmm child, type, rid, r)); 836108798Stmm } 837159413Smarius if (type == SYS_RES_MEMORY) { 838159413Smarius /* 839159413Smarius * Need to memory-map the device space, as some drivers depend 840159413Smarius * on the virtual address being set and useable. 841159413Smarius */ 842159413Smarius error = sparc64_bus_mem_map(rman_get_bustag(r), 843159413Smarius rman_get_bushandle(r), rman_get_size(r), 0, 0, &p); 844159413Smarius if (error != 0) 845159413Smarius return (error); 846159413Smarius rman_set_virtual(r, p); 847159413Smarius } 84890618Stmm return (rman_activate_resource(r)); 84990618Stmm} 85090618Stmm 85190618Stmmstatic int 85290618Stmmsbus_deactivate_resource(device_t bus, device_t child, int type, int rid, 85390618Stmm struct resource *r) 85490618Stmm{ 85590618Stmm 856108798Stmm if (type == SYS_RES_IRQ) { 857108798Stmm return (BUS_DEACTIVATE_RESOURCE(device_get_parent(bus), 858108798Stmm child, type, rid, r)); 859108798Stmm } 860159413Smarius if (type == SYS_RES_MEMORY) { 861159413Smarius sparc64_bus_mem_unmap(rman_get_virtual(r), rman_get_size(r)); 862159413Smarius rman_set_virtual(r, NULL); 863159413Smarius } 86490618Stmm return (rman_deactivate_resource(r)); 86590618Stmm} 86690618Stmm 86790618Stmmstatic int 86890618Stmmsbus_release_resource(device_t bus, device_t child, int type, int rid, 86990618Stmm struct resource *r) 87090618Stmm{ 871145186Smarius struct resource_list *rl; 872108798Stmm struct resource_list_entry *rle; 873145186Smarius int error, passthrough; 87490618Stmm 875145186Smarius passthrough = (device_get_parent(child) != bus); 876145186Smarius rl = BUS_GET_RESOURCE_LIST(bus, child); 87790618Stmm if (type == SYS_RES_IRQ) 878145186Smarius return (resource_list_release(rl, bus, child, type, rid, r)); 879145186Smarius if ((rman_get_flags(r) & RF_ACTIVE) != 0) { 880145186Smarius error = bus_deactivate_resource(child, type, rid, r); 881108798Stmm if (error != 0) 882108798Stmm return (error); 88390618Stmm } 884145186Smarius error = rman_release_resource(r); 885145186Smarius if (error != 0 || passthrough) 886108798Stmm return (error); 887145186Smarius rle = resource_list_find(rl, type, rid); 888108798Stmm if (rle == NULL) 889145185Smarius panic("%s: cannot find resource", __func__); 890108798Stmm if (rle->res == NULL) 891145185Smarius panic("%s: resource entry is not busy", __func__); 892108798Stmm rle->res = NULL; 893108798Stmm return (0); 89490618Stmm} 89590618Stmm 896167308Smariusstatic bus_dma_tag_t 897167308Smariussbus_get_dma_tag(device_t bus, device_t child) 898167308Smarius{ 899167308Smarius struct sbus_softc *sc; 900167308Smarius 901167308Smarius sc = device_get_softc(bus); 902167308Smarius return (sc->sc_cdmatag); 903167308Smarius} 904167308Smarius 905152684Smariusstatic const struct ofw_bus_devinfo * 906152684Smariussbus_get_devinfo(device_t bus, device_t child) 907152684Smarius{ 908152684Smarius struct sbus_devinfo *sdi; 909152684Smarius 910152684Smarius sdi = device_get_ivars(child); 911152684Smarius return (&sdi->sdi_obdinfo); 912152684Smarius} 913152684Smarius 91490618Stmm/* 91590618Stmm * Handle an overtemp situation. 91690618Stmm * 91790618Stmm * SPARCs have temperature sensors which generate interrupts 91890618Stmm * if the machine's temperature exceeds a certain threshold. 91990618Stmm * This handles the interrupt and powers off the machine. 92090618Stmm * The same needs to be done to PCI controller drivers. 92190618Stmm */ 922166901Spisostatic int 92390618Stmmsbus_overtemp(void *arg) 92490618Stmm{ 92590618Stmm 92690618Stmm printf("DANGER: OVER TEMPERATURE detected\nShutting down NOW.\n"); 92790618Stmm shutdown_nice(RB_POWEROFF); 928166901Spiso return (FILTER_HANDLED); 92990618Stmm} 93090618Stmm 93190618Stmm/* Try to shut down in time in case of power failure. */ 932166901Spisostatic int 93390618Stmmsbus_pwrfail(void *arg) 93490618Stmm{ 93590618Stmm 93690618Stmm printf("Power failure detected\nShutting down NOW.\n"); 93790618Stmm shutdown_nice(0); 938166901Spiso return (FILTER_HANDLED); 93990618Stmm} 94090618Stmm 94190618Stmmstatic bus_space_tag_t 94290618Stmmsbus_alloc_bustag(struct sbus_softc *sc) 94390618Stmm{ 94490618Stmm bus_space_tag_t sbt; 94590618Stmm 94690618Stmm sbt = (bus_space_tag_t)malloc(sizeof(struct bus_space_tag), M_DEVBUF, 94790618Stmm M_NOWAIT | M_ZERO); 94890618Stmm if (sbt == NULL) 949145185Smarius panic("%s: out of memory", __func__); 95090618Stmm 951108815Stmm sbt->bst_cookie = sc; 952108815Stmm sbt->bst_parent = sc->sc_bustag; 953108815Stmm sbt->bst_type = SBUS_BUS_SPACE; 95490618Stmm return (sbt); 95590618Stmm} 956133589Smarius 957152684Smariusstatic int 958152684Smariussbus_print_res(struct sbus_devinfo *sdi) 959133589Smarius{ 960152684Smarius int rv; 961133589Smarius 962152684Smarius rv = 0; 963152684Smarius rv += resource_list_print_type(&sdi->sdi_rl, "mem", SYS_RES_MEMORY, 964152684Smarius "%#lx"); 965152684Smarius rv += resource_list_print_type(&sdi->sdi_rl, "irq", SYS_RES_IRQ, 966152684Smarius "%ld"); 967152684Smarius return (rv); 968133589Smarius} 969