sbus.c revision 171730
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 171730 2007-08-05 11:56:44Z 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> 115171730Smarius#include <sys/queue.h> 11690618Stmm#include <sys/reboot.h> 117171730Smarius#include <sys/rman.h> 11890618Stmm 119133589Smarius#include <dev/ofw/ofw_bus.h> 120152684Smarius#include <dev/ofw/ofw_bus_subr.h> 121119338Simp#include <dev/ofw/openfirm.h> 12290618Stmm 12390618Stmm#include <machine/bus.h> 124171730Smarius#include <machine/bus_common.h> 125116541Stmm#include <machine/bus_private.h> 12690618Stmm#include <machine/iommureg.h> 127171730Smarius#include <machine/iommuvar.h> 12890618Stmm#include <machine/resource.h> 12990618Stmm 13090618Stmm#include <sparc64/sbus/ofw_sbus.h> 13190618Stmm#include <sparc64/sbus/sbusreg.h> 13290618Stmm#include <sparc64/sbus/sbusvar.h> 13390618Stmm 13490618Stmmstruct sbus_devinfo { 13590618Stmm int sdi_burstsz; 136145186Smarius int sdi_clockfreq; 13790618Stmm int sdi_slot; 13890618Stmm 139152684Smarius struct ofw_bus_devinfo sdi_obdinfo; 14090618Stmm struct resource_list sdi_rl; 14190618Stmm}; 14290618Stmm 14390618Stmm/* Range descriptor, allocated for each sc_range. */ 14490618Stmmstruct sbus_rd { 14590618Stmm bus_addr_t rd_poffset; 14690618Stmm bus_addr_t rd_pend; 14790618Stmm int rd_slot; 14890618Stmm bus_addr_t rd_coffset; 14990618Stmm bus_addr_t rd_cend; 15090618Stmm struct rman rd_rman; 15190618Stmm bus_space_handle_t rd_bushandle; 15290618Stmm struct resource *rd_res; 15390618Stmm}; 15490618Stmm 15590618Stmmstruct sbus_softc { 15690618Stmm bus_dma_tag_t sc_cdmatag; 15790618Stmm bus_space_tag_t sc_cbustag; 15890618Stmm int sc_clockfreq; /* clock frequency (in Hz) */ 15990618Stmm int sc_nrange; 16090618Stmm struct sbus_rd *sc_rd; 161145185Smarius int sc_burst; /* burst transfer sizes supp. */ 16290618Stmm 16390618Stmm struct resource *sc_sysio_res; 164145185Smarius int sc_ign; /* IGN for this sysio */ 165145185Smarius struct iommu_state sc_is; /* IOMMU state (iommuvar.h) */ 16690618Stmm 16790618Stmm struct resource *sc_ot_ires; 16890618Stmm void *sc_ot_ihand; 16990618Stmm struct resource *sc_pf_ires; 17090618Stmm void *sc_pf_ihand; 17190618Stmm}; 17290618Stmm 17390618Stmmstruct sbus_clr { 17490618Stmm struct sbus_softc *scl_sc; 175145185Smarius bus_addr_t scl_clr; /* clear register */ 176170852Smarius driver_filter_t *scl_filter; /* filter to call */ 177170387Spiso driver_intr_t *scl_handler; /* handler to call */ 178145185Smarius void *scl_arg; /* argument for the handler */ 179145185Smarius void *scl_cookie; /* parent bus int. cookie */ 18090618Stmm}; 18190618Stmm 18290618Stmm#define SYSIO_READ8(sc, off) \ 183170852Smarius bus_read_8((sc)->sc_sysio_res, (off)) 18490618Stmm#define SYSIO_WRITE8(sc, off, v) \ 185170852Smarius bus_write_8((sc)->sc_sysio_res, (off), (v)) 18690618Stmm 187145185Smariusstatic device_probe_t sbus_probe; 188145186Smariusstatic device_attach_t sbus_attach; 189145185Smariusstatic bus_print_child_t sbus_print_child; 190145185Smariusstatic bus_probe_nomatch_t sbus_probe_nomatch; 191145185Smariusstatic bus_read_ivar_t sbus_read_ivar; 192145185Smariusstatic bus_get_resource_list_t sbus_get_resource_list; 193145185Smariusstatic bus_setup_intr_t sbus_setup_intr; 194145185Smariusstatic bus_teardown_intr_t sbus_teardown_intr; 195145185Smariusstatic bus_alloc_resource_t sbus_alloc_resource; 196145185Smariusstatic bus_release_resource_t sbus_release_resource; 197145185Smariusstatic bus_activate_resource_t sbus_activate_resource; 198145185Smariusstatic bus_deactivate_resource_t sbus_deactivate_resource; 199167308Smariusstatic bus_get_dma_tag_t sbus_get_dma_tag; 200152684Smariusstatic ofw_bus_get_devinfo_t sbus_get_devinfo; 20190618Stmm 202146391Smariusstatic int sbus_inlist(const char *, const char **); 203152684Smariusstatic struct sbus_devinfo * sbus_setup_dinfo(device_t, struct sbus_softc *, 204152684Smarius phandle_t); 205152684Smariusstatic void sbus_destroy_dinfo(struct sbus_devinfo *); 206170387Spisostatic driver_filter_t sbus_filter_stub; 207170387Spisostatic driver_intr_t sbus_intr_stub; 20890618Stmmstatic bus_space_tag_t sbus_alloc_bustag(struct sbus_softc *); 209170852Smariusstatic driver_intr_t sbus_overtemp; 210170852Smariusstatic driver_intr_t sbus_pwrfail; 211152684Smariusstatic int sbus_print_res(struct sbus_devinfo *); 21290618Stmm 21390618Stmmstatic device_method_t sbus_methods[] = { 21490618Stmm /* Device interface */ 21590618Stmm DEVMETHOD(device_probe, sbus_probe), 216145186Smarius DEVMETHOD(device_attach, sbus_attach), 217154870Smarius DEVMETHOD(device_shutdown, bus_generic_shutdown), 218154870Smarius DEVMETHOD(device_suspend, bus_generic_suspend), 219154870Smarius DEVMETHOD(device_resume, bus_generic_resume), 22090618Stmm 22190618Stmm /* Bus interface */ 22290618Stmm DEVMETHOD(bus_print_child, sbus_print_child), 22390618Stmm DEVMETHOD(bus_probe_nomatch, sbus_probe_nomatch), 22490618Stmm DEVMETHOD(bus_read_ivar, sbus_read_ivar), 22590618Stmm DEVMETHOD(bus_setup_intr, sbus_setup_intr), 22690618Stmm DEVMETHOD(bus_teardown_intr, sbus_teardown_intr), 22790618Stmm DEVMETHOD(bus_alloc_resource, sbus_alloc_resource), 22890618Stmm DEVMETHOD(bus_activate_resource, sbus_activate_resource), 22990618Stmm DEVMETHOD(bus_deactivate_resource, sbus_deactivate_resource), 23090618Stmm DEVMETHOD(bus_release_resource, sbus_release_resource), 23190618Stmm DEVMETHOD(bus_get_resource_list, sbus_get_resource_list), 23290618Stmm DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 233167308Smarius DEVMETHOD(bus_get_dma_tag, sbus_get_dma_tag), 23490618Stmm 235133589Smarius /* ofw_bus interface */ 236152684Smarius DEVMETHOD(ofw_bus_get_devinfo, sbus_get_devinfo), 237152684Smarius DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 238152684Smarius DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 239152684Smarius DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 240152684Smarius DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 241152684Smarius DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 242133589Smarius 24390618Stmm { 0, 0 } 24490618Stmm}; 24590618Stmm 24690618Stmmstatic driver_t sbus_driver = { 24790618Stmm "sbus", 24890618Stmm sbus_methods, 24990618Stmm sizeof(struct sbus_softc), 25090618Stmm}; 25190618Stmm 25290618Stmmstatic devclass_t sbus_devclass; 25390618Stmm 25490618StmmDRIVER_MODULE(sbus, nexus, sbus_driver, sbus_devclass, 0, 0); 25590618Stmm 25690618Stmm#define OFW_SBUS_TYPE "sbus" 25790618Stmm#define OFW_SBUS_NAME "sbus" 25890618Stmm 259146391Smariusstatic const char *sbus_order_first[] = { 260146391Smarius "auxio", 261146391Smarius "dma", 262146391Smarius NULL 263146391Smarius}; 264146391Smarius 26590618Stmmstatic int 266146391Smariussbus_inlist(const char *name, const char **list) 267146391Smarius{ 268146391Smarius int i; 269146391Smarius 270146391Smarius if (name == NULL) 271146391Smarius return (0); 272146391Smarius for (i = 0; list[i] != NULL; i++) { 273146391Smarius if (strcmp(name, list[i]) == 0) 274146391Smarius return (1); 275146391Smarius } 276146391Smarius return (0); 277146391Smarius} 278146391Smarius 279146391Smariusstatic int 28090618Stmmsbus_probe(device_t dev) 28190618Stmm{ 282167308Smarius const char *t; 283145186Smarius 284167308Smarius t = ofw_bus_get_type(dev); 285145186Smarius if (((t == NULL || strcmp(t, OFW_SBUS_TYPE) != 0)) && 286167308Smarius strcmp(ofw_bus_get_name(dev), OFW_SBUS_NAME) != 0) 287145186Smarius return (ENXIO); 288145186Smarius device_set_desc(dev, "U2S UPA-SBus bridge"); 289145186Smarius return (0); 290145186Smarius} 291145186Smarius 292145186Smariusstatic int 293145186Smariussbus_attach(device_t dev) 294145186Smarius{ 295145185Smarius struct sbus_softc *sc; 29690618Stmm struct sbus_devinfo *sdi; 29790618Stmm struct sbus_ranges *range; 29890618Stmm struct resource *res; 299167308Smarius struct resource_list *rl; 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; 306167308Smarius int clock, i, intr, rid; 30790618Stmm 308145185Smarius sc = device_get_softc(dev); 309167308Smarius node = ofw_bus_get_node(dev); 310145185Smarius 31190618Stmm rid = 0; 312167308Smarius sc->sc_sysio_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 313167308Smarius RF_ACTIVE); 314167308Smarius if (sc->sc_sysio_res == NULL) 315145185Smarius panic("%s: cannot allocate device memory", __func__); 31690618Stmm 31790618Stmm if (OF_getprop(node, "interrupts", &intr, sizeof(intr)) == -1) 318145185Smarius panic("%s: cannot get IGN", __func__); 319146391Smarius sc->sc_ign = (intr & INTMAP_IGN_MASK) >> INTMAP_IGN_SHIFT; 32090618Stmm sc->sc_cbustag = sbus_alloc_bustag(sc); 32190618Stmm 32290618Stmm /* 32390618Stmm * Record clock frequency for synchronous SCSI. 32490618Stmm * IS THIS THE CORRECT DEFAULT?? 32590618Stmm */ 32690618Stmm if (OF_getprop(node, "clock-frequency", &clock, sizeof(clock)) == -1) 32790618Stmm clock = 25000000; 32890618Stmm sc->sc_clockfreq = clock; 32990618Stmm clock /= 1000; 33090618Stmm device_printf(dev, "clock %d.%03d MHz\n", clock / 1000, clock % 1000); 33190618Stmm 33290618Stmm /* 33390618Stmm * Collect address translations from the OBP. 33490618Stmm */ 33590618Stmm if ((sc->sc_nrange = OF_getprop_alloc(node, "ranges", 33690618Stmm sizeof(*range), (void **)&range)) == -1) { 337145185Smarius panic("%s: error getting ranges property", __func__); 33890618Stmm } 33990618Stmm sc->sc_rd = (struct sbus_rd *)malloc(sizeof(*sc->sc_rd) * sc->sc_nrange, 34090618Stmm M_DEVBUF, M_NOWAIT); 34190618Stmm if (sc->sc_rd == NULL) 342145185Smarius panic("%s: cannot allocate rmans", __func__); 34390618Stmm /* 34490618Stmm * Preallocate all space that the SBus bridge decodes, so that nothing 34590618Stmm * else gets in the way; set up rmans etc. 34690618Stmm */ 347167308Smarius rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev); 34890618Stmm for (i = 0; i < sc->sc_nrange; i++) { 34990618Stmm phys = range[i].poffset | ((bus_addr_t)range[i].pspace << 32); 35090618Stmm size = range[i].size; 35190618Stmm sc->sc_rd[i].rd_slot = range[i].cspace; 35290618Stmm sc->sc_rd[i].rd_coffset = range[i].coffset; 35390618Stmm sc->sc_rd[i].rd_cend = sc->sc_rd[i].rd_coffset + size; 354167308Smarius rid = resource_list_add_next(rl, SYS_RES_MEMORY, phys, 355167308Smarius phys + size - 1, size); 356167308Smarius if ((res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 357167308Smarius RF_ACTIVE)) == NULL) 358145185Smarius panic("%s: cannot allocate decoded range", __func__); 35990618Stmm sc->sc_rd[i].rd_bushandle = rman_get_bushandle(res); 36090618Stmm sc->sc_rd[i].rd_rman.rm_type = RMAN_ARRAY; 36190618Stmm sc->sc_rd[i].rd_rman.rm_descr = "SBus Device Memory"; 36290618Stmm if (rman_init(&sc->sc_rd[i].rd_rman) != 0 || 36390618Stmm rman_manage_region(&sc->sc_rd[i].rd_rman, 0, size) != 0) 364145185Smarius panic("%s: failed to set up memory rman", __func__); 36590618Stmm sc->sc_rd[i].rd_poffset = phys; 36690618Stmm sc->sc_rd[i].rd_pend = phys + size; 36790618Stmm sc->sc_rd[i].rd_res = res; 36890618Stmm } 36990618Stmm free(range, M_OFWPROP); 37090618Stmm 37190618Stmm /* 37290618Stmm * Get the SBus burst transfer size if burst transfers are supported. 37390618Stmm * XXX: is the default correct? 37490618Stmm */ 37590618Stmm if (OF_getprop(node, "burst-sizes", &sc->sc_burst, 37690618Stmm sizeof(sc->sc_burst)) == -1 || sc->sc_burst == 0) 37790618Stmm sc->sc_burst = SBUS_BURST_DEF; 37890618Stmm 37990618Stmm /* initalise the IOMMU */ 38090618Stmm 38190618Stmm /* punch in our copies */ 382171730Smarius sc->sc_is.is_pmaxaddr = IOMMU_MAXADDR(SBUS_IOMMU_BITS); 383170852Smarius sc->sc_is.is_bustag = rman_get_bustag(sc->sc_sysio_res); 384170852Smarius sc->sc_is.is_bushandle = rman_get_bushandle(sc->sc_sysio_res); 38590618Stmm sc->sc_is.is_iommu = SBR_IOMMU; 38690618Stmm sc->sc_is.is_dtag = SBR_IOMMU_TLB_TAG_DIAG; 38790618Stmm sc->sc_is.is_ddram = SBR_IOMMU_TLB_DATA_DIAG; 38890618Stmm sc->sc_is.is_dqueue = SBR_IOMMU_QUEUE_DIAG; 38990618Stmm sc->sc_is.is_dva = SBR_IOMMU_SVADIAG; 39090618Stmm sc->sc_is.is_dtcmp = 0; 39190618Stmm sc->sc_is.is_sb[0] = SBR_STRBUF; 392123865Sobrien sc->sc_is.is_sb[1] = 0; 39390618Stmm 39490618Stmm /* give us a nice name.. */ 39590618Stmm name = (char *)malloc(32, M_DEVBUF, M_NOWAIT); 396145185Smarius if (name == NULL) 397145185Smarius panic("%s: cannot malloc iommu name", __func__); 39890618Stmm snprintf(name, 32, "%s dvma", device_get_name(dev)); 39990618Stmm 400100188Stmm /* 401100188Stmm * Note: the SBus IOMMU ignores the high bits of an address, so a NULL 402100188Stmm * DMA pointer will be translated by the first page of the IOTSB. 403100188Stmm * To detect bugs we'll allocate and ignore the first entry. 404100188Stmm */ 405114484Stmm iommu_init(name, &sc->sc_is, 3, -1, 1); 40690618Stmm 407116213Stmm /* Create the DMA tag. */ 408171730Smarius if (bus_dma_tag_create(bus_get_dma_tag(dev), 8, 0, 409171730Smarius sc->sc_is.is_pmaxaddr, ~0, NULL, NULL, sc->sc_is.is_pmaxaddr, 410171730Smarius 0xff, 0xffffffff, 0, NULL, NULL, &sc->sc_cdmatag) != 0) 411145185Smarius panic("%s: bus_dma_tag_create failed", __func__); 412116213Stmm /* Customize the tag. */ 413116213Stmm sc->sc_cdmatag->dt_cookie = &sc->sc_is; 414116541Stmm sc->sc_cdmatag->dt_mt = &iommu_dma_methods; 415116213Stmm 416145185Smarius /* Enable the over-temperature and power-fail interrupts. */ 417167308Smarius rid = 4; 41890618Stmm mr = SYSIO_READ8(sc, SBR_THERM_INT_MAP); 419167308Smarius sc->sc_ot_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 420167308Smarius RF_ACTIVE); 421166034Smarius if (sc->sc_ot_ires == NULL || 422167308Smarius rman_get_start(sc->sc_ot_ires) != INTVEC(mr) || 423166901Spiso bus_setup_intr(dev, sc->sc_ot_ires, INTR_TYPE_MISC, 424170852Smarius NULL, sbus_overtemp, sc, &sc->sc_ot_ihand) != 0) 425166034Smarius panic("%s: failed to set up temperature interrupt", __func__); 426107477Stmm SYSIO_WRITE8(sc, SBR_THERM_INT_MAP, INTMAP_ENABLE(mr, PCPU_GET(mid))); 427167308Smarius rid = 3; 42890618Stmm mr = SYSIO_READ8(sc, SBR_POWER_INT_MAP); 429167308Smarius sc->sc_pf_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 430167308Smarius RF_ACTIVE); 431166034Smarius if (sc->sc_pf_ires == NULL || 432167308Smarius rman_get_start(sc->sc_pf_ires) != INTVEC(mr) || 433166901Spiso bus_setup_intr(dev, sc->sc_pf_ires, INTR_TYPE_MISC, 434170852Smarius NULL, sbus_pwrfail, sc, &sc->sc_pf_ihand) != 0) 435166034Smarius panic("%s: failed to set up power fail interrupt", __func__); 436107477Stmm SYSIO_WRITE8(sc, SBR_POWER_INT_MAP, INTMAP_ENABLE(mr, PCPU_GET(mid))); 43790618Stmm 43890618Stmm /* Initialize the counter-timer. */ 439170852Smarius sparc64_counter_init(rman_get_bustag(sc->sc_sysio_res), 440170852Smarius rman_get_bushandle(sc->sc_sysio_res), SBR_TC0); 44190618Stmm 44290618Stmm /* 44390618Stmm * Loop through ROM children, fixing any relative addresses 44490618Stmm * and then configuring each device. 44590618Stmm */ 44690618Stmm for (child = OF_child(node); child != 0; child = OF_peer(child)) { 447152684Smarius if ((sdi = sbus_setup_dinfo(dev, sc, child)) == NULL) 44890618Stmm continue; 449146391Smarius /* 450146391Smarius * For devices where there are variants that are actually 451146391Smarius * split into two SBus devices (as opposed to the first 452146391Smarius * half of the device being a SBus device and the second 453146391Smarius * half hanging off of the first one) like 'auxio' and 454146391Smarius * 'SUNW,fdtwo' or 'dma' and 'esp' probe the SBus device 455146391Smarius * which is a prerequisite to the driver attaching to the 456146391Smarius * second one with a lower order. Saves us from dealing 457146391Smarius * with different probe orders in the respective device 458146391Smarius * drivers which generally is more hackish. 459146391Smarius */ 460146391Smarius cdev = device_add_child_ordered(dev, (OF_child(child) == 0 && 461152684Smarius sbus_inlist(sdi->sdi_obdinfo.obd_name, sbus_order_first)) ? 462152684Smarius SBUS_ORDER_FIRST : SBUS_ORDER_NORMAL, NULL, -1); 463152684Smarius if (cdev == NULL) { 464152684Smarius device_printf(dev, 465152684Smarius "<%s>: device_add_child_ordered failed\n", 466152684Smarius sdi->sdi_obdinfo.obd_name); 467152684Smarius sbus_destroy_dinfo(sdi); 468152684Smarius continue; 469152684Smarius } 47090618Stmm device_set_ivars(cdev, sdi); 47190618Stmm } 472145186Smarius return (bus_generic_attach(dev)); 47390618Stmm} 47490618Stmm 47590618Stmmstatic struct sbus_devinfo * 476152684Smariussbus_setup_dinfo(device_t dev, struct sbus_softc *sc, phandle_t node) 47790618Stmm{ 47890618Stmm struct sbus_devinfo *sdi; 47990618Stmm struct sbus_regs *reg; 48090618Stmm u_int32_t base, iv, *intr; 48190618Stmm int i, nreg, nintr, slot, rslot; 48290618Stmm 483111119Simp sdi = malloc(sizeof(*sdi), M_DEVBUF, M_ZERO | M_WAITOK); 484152684Smarius if (ofw_bus_gen_setup_devinfo(&sdi->sdi_obdinfo, node) != 0) { 485152684Smarius free(sdi, M_DEVBUF); 48690618Stmm return (NULL); 487152684Smarius } 48890618Stmm resource_list_init(&sdi->sdi_rl); 48990618Stmm slot = -1; 49090618Stmm nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®); 49190618Stmm if (nreg == -1) { 492152684Smarius if (sdi->sdi_obdinfo.obd_type == NULL || 493152684Smarius strcmp(sdi->sdi_obdinfo.obd_type, "hierarchical") != 0) { 494152684Smarius device_printf(dev, "<%s>: incomplete\n", 495152684Smarius sdi->sdi_obdinfo.obd_name); 496152684Smarius goto fail; 49790618Stmm } 49890618Stmm } else { 49990618Stmm for (i = 0; i < nreg; i++) { 50090618Stmm base = reg[i].sbr_offset; 50190618Stmm if (SBUS_ABS(base)) { 50290618Stmm rslot = SBUS_ABS_TO_SLOT(base); 50390618Stmm base = SBUS_ABS_TO_OFFSET(base); 50490618Stmm } else 50590618Stmm rslot = reg[i].sbr_slot; 506152684Smarius if (slot != -1 && slot != rslot) { 507152684Smarius device_printf(dev, "<%s>: multiple slots\n", 508152684Smarius sdi->sdi_obdinfo.obd_name); 509152684Smarius free(reg, M_OFWPROP); 510152684Smarius goto fail; 511152684Smarius } 51290618Stmm slot = rslot; 51390618Stmm 51490618Stmm resource_list_add(&sdi->sdi_rl, SYS_RES_MEMORY, i, 51590618Stmm base, base + reg[i].sbr_size, reg[i].sbr_size); 51690618Stmm } 51790618Stmm free(reg, M_OFWPROP); 51890618Stmm } 51990618Stmm sdi->sdi_slot = slot; 52090618Stmm 52190618Stmm /* 522145185Smarius * The `interrupts' property contains the SBus interrupt level. 52390618Stmm */ 524145185Smarius nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr), 525145185Smarius (void **)&intr); 52690618Stmm if (nintr != -1) { 52790618Stmm for (i = 0; i < nintr; i++) { 52890618Stmm iv = intr[i]; 52990618Stmm /* 530145185Smarius * SBus card devices need the slot number encoded into 53190618Stmm * the vector as this is generally not done. 53290618Stmm */ 533107477Stmm if ((iv & INTMAP_OBIO_MASK) == 0) 53490618Stmm iv |= slot << 3; 53590618Stmm /* Set the ign as appropriate. */ 536146391Smarius iv |= sc->sc_ign << INTMAP_IGN_SHIFT; 53790618Stmm resource_list_add(&sdi->sdi_rl, SYS_RES_IRQ, i, 53890618Stmm iv, iv, 1); 53990618Stmm } 54090618Stmm free(intr, M_OFWPROP); 54190618Stmm } 54290618Stmm if (OF_getprop(node, "burst-sizes", &sdi->sdi_burstsz, 54390618Stmm sizeof(sdi->sdi_burstsz)) == -1) 54490618Stmm sdi->sdi_burstsz = sc->sc_burst; 54590618Stmm else 54690618Stmm sdi->sdi_burstsz &= sc->sc_burst; 547145186Smarius if (OF_getprop(node, "clock-frequency", &sdi->sdi_clockfreq, 548145186Smarius sizeof(sdi->sdi_clockfreq)) == -1) 549145186Smarius sdi->sdi_clockfreq = sc->sc_clockfreq; 55090618Stmm 55190618Stmm return (sdi); 552152684Smarius 553152684Smariusfail: 554152684Smarius sbus_destroy_dinfo(sdi); 555152684Smarius return (NULL); 55690618Stmm} 55790618Stmm 55890618Stmmstatic void 55990618Stmmsbus_destroy_dinfo(struct sbus_devinfo *dinfo) 56090618Stmm{ 56190618Stmm 56290618Stmm resource_list_free(&dinfo->sdi_rl); 563152684Smarius ofw_bus_gen_destroy_devinfo(&dinfo->sdi_obdinfo); 56490618Stmm free(dinfo, M_DEVBUF); 56590618Stmm} 56690618Stmm 56790618Stmmstatic int 56890618Stmmsbus_print_child(device_t dev, device_t child) 56990618Stmm{ 57090618Stmm int rv; 57190618Stmm 57290618Stmm rv = bus_print_child_header(dev, child); 573152684Smarius rv += sbus_print_res(device_get_ivars(child)); 57490618Stmm rv += bus_print_child_footer(dev, child); 57590618Stmm return (rv); 57690618Stmm} 57790618Stmm 57890618Stmmstatic void 57990618Stmmsbus_probe_nomatch(device_t dev, device_t child) 58090618Stmm{ 581152684Smarius const char *type; 58290618Stmm 583152684Smarius device_printf(dev, "<%s>", ofw_bus_get_name(child)); 584152684Smarius sbus_print_res(device_get_ivars(child)); 585152684Smarius type = ofw_bus_get_type(child); 586145186Smarius printf(" type %s (no driver attached)\n", 587152684Smarius type != NULL ? type : "unknown"); 58890618Stmm} 58990618Stmm 59090618Stmmstatic int 59190618Stmmsbus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 59290618Stmm{ 593146391Smarius struct sbus_softc *sc; 59490618Stmm struct sbus_devinfo *dinfo; 59590618Stmm 596146391Smarius sc = device_get_softc(dev); 59790618Stmm if ((dinfo = device_get_ivars(child)) == NULL) 59890618Stmm return (ENOENT); 59990618Stmm switch (which) { 60090618Stmm case SBUS_IVAR_BURSTSZ: 60190618Stmm *result = dinfo->sdi_burstsz; 60290618Stmm break; 60390618Stmm case SBUS_IVAR_CLOCKFREQ: 604145186Smarius *result = dinfo->sdi_clockfreq; 60590618Stmm break; 606146391Smarius case SBUS_IVAR_IGN: 607146391Smarius *result = sc->sc_ign; 608146391Smarius break; 60990618Stmm case SBUS_IVAR_SLOT: 61090618Stmm *result = dinfo->sdi_slot; 61190618Stmm break; 61290618Stmm default: 61390618Stmm return (ENOENT); 61490618Stmm } 615146391Smarius return (0); 61690618Stmm} 61790618Stmm 61890618Stmmstatic struct resource_list * 61990618Stmmsbus_get_resource_list(device_t dev, device_t child) 62090618Stmm{ 62190618Stmm struct sbus_devinfo *sdi; 62290618Stmm 62390618Stmm sdi = device_get_ivars(child); 62490618Stmm return (&sdi->sdi_rl); 62590618Stmm} 62690618Stmm 627166901Spisostatic int 628170387Spisosbus_filter_stub(void *arg) 629170387Spiso{ 630170387Spiso struct sbus_clr *scl; 631170387Spiso int res; 632170387Spiso 633170387Spiso scl = (struct sbus_clr *)arg; 634170387Spiso if (scl->scl_filter != NULL) { 635170387Spiso res = scl->scl_filter(scl->scl_arg); 636170387Spiso SYSIO_WRITE8(scl->scl_sc, scl->scl_clr, 0); 637170387Spiso } else 638170387Spiso res = FILTER_SCHEDULE_THREAD; 639170387Spiso return (res); 640170387Spiso} 641170387Spiso 642170387Spisostatic void 64390618Stmmsbus_intr_stub(void *arg) 64490618Stmm{ 64590618Stmm struct sbus_clr *scl; 64690618Stmm 64790618Stmm scl = (struct sbus_clr *)arg; 64890618Stmm scl->scl_handler(scl->scl_arg); 649170387Spiso if (scl->scl_filter == NULL) 650170387Spiso SYSIO_WRITE8(scl->scl_sc, scl->scl_clr, 0); 65190618Stmm} 65290618Stmm 65390618Stmmstatic int 654145185Smariussbus_setup_intr(device_t dev, device_t child, struct resource *ires, int flags, 655166901Spiso driver_filter_t *filt, driver_intr_t *intr, void *arg, void **cookiep) 65690618Stmm{ 65790618Stmm struct sbus_softc *sc; 65890618Stmm struct sbus_clr *scl; 65990618Stmm bus_addr_t intrmapptr, intrclrptr, intrptr; 66090618Stmm u_int64_t intrmap; 66190618Stmm u_int32_t inr, slot; 66290618Stmm int error, i; 663159413Smarius long vec; 66490618Stmm 665166901Spiso if (filt != NULL && intr != NULL) 666166901Spiso return (EINVAL); 667145185Smarius sc = device_get_softc(dev); 66890618Stmm scl = (struct sbus_clr *)malloc(sizeof(*scl), M_DEVBUF, M_NOWAIT); 66990618Stmm if (scl == NULL) 670159413Smarius return (ENOMEM); 67190618Stmm intrptr = intrmapptr = intrclrptr = 0; 67290618Stmm intrmap = 0; 673159413Smarius vec = rman_get_start(ires); 674107474Stmm inr = INTVEC(vec); 675107477Stmm if ((inr & INTMAP_OBIO_MASK) == 0) { 676107474Stmm /* 677145185Smarius * We're in an SBus slot, register the map and clear 678107474Stmm * intr registers. 679107474Stmm */ 680107474Stmm slot = INTSLOT(vec); 681107474Stmm intrmapptr = SBR_SLOT0_INT_MAP + slot * 8; 682107474Stmm intrclrptr = SBR_SLOT0_INT_CLR + 683107474Stmm (slot * 8 * 8) + (INTPRI(vec) * 8); 684107474Stmm /* Enable the interrupt, insert IGN. */ 685146391Smarius intrmap = inr | (sc->sc_ign << INTMAP_IGN_SHIFT); 686107474Stmm } else { 687107474Stmm intrptr = SBR_SCSI_INT_MAP; 688107474Stmm /* Insert IGN */ 689146391Smarius inr |= sc->sc_ign << INTMAP_IGN_SHIFT; 690107474Stmm for (i = 0; intrptr <= SBR_RESERVED_INT_MAP && 691159413Smarius INTVEC(intrmap = SYSIO_READ8(sc, intrptr)) != inr; 692159413Smarius intrptr += 8, i++) 693107474Stmm ; 694159413Smarius if (INTVEC(intrmap) == inr) { 695107474Stmm /* Register the map and clear intr registers */ 696107474Stmm intrmapptr = intrptr; 697107474Stmm intrclrptr = SBR_SCSI_INT_CLR + i * 8; 698107474Stmm /* Enable the interrupt */ 699107474Stmm } else 700145185Smarius panic("%s: IRQ not found!", __func__); 701107474Stmm } 70290618Stmm 70390618Stmm scl->scl_sc = sc; 70490618Stmm scl->scl_arg = arg; 705170387Spiso scl->scl_filter = filt; 706170387Spiso scl->scl_handler = intr; 70790618Stmm scl->scl_clr = intrclrptr; 70890618Stmm /* Disable the interrupt while we fiddle with it */ 709159413Smarius SYSIO_WRITE8(sc, intrmapptr, intrmap & ~INTMAP_V); 710170387Spiso error = BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, 711170387Spiso sbus_filter_stub, sbus_intr_stub, scl, cookiep); 71290618Stmm if (error != 0) { 71390618Stmm free(scl, M_DEVBUF); 71490618Stmm return (error); 71590618Stmm } 71690618Stmm scl->scl_cookie = *cookiep; 71790618Stmm *cookiep = scl; 71890618Stmm 71990618Stmm /* 72090618Stmm * Clear the interrupt, it might have been triggered before it was 72190618Stmm * set up. 72290618Stmm */ 723107474Stmm SYSIO_WRITE8(sc, intrclrptr, 0); 72490618Stmm /* 725107477Stmm * Enable the interrupt and program the target module now we have the 726107477Stmm * handler installed. 72790618Stmm */ 728107477Stmm SYSIO_WRITE8(sc, intrmapptr, INTMAP_ENABLE(intrmap, PCPU_GET(mid))); 72990618Stmm return (error); 73090618Stmm} 73190618Stmm 73290618Stmmstatic int 733152684Smariussbus_teardown_intr(device_t dev, device_t child, struct resource *vec, 734152684Smarius void *cookie) 73590618Stmm{ 73690618Stmm struct sbus_clr *scl; 73790618Stmm int error; 73890618Stmm 73990618Stmm scl = (struct sbus_clr *)cookie; 74090618Stmm error = BUS_TEARDOWN_INTR(device_get_parent(dev), child, vec, 74190618Stmm scl->scl_cookie); 74290618Stmm /* 743145185Smarius * Don't disable the interrupt for now, so that stray interrupts get 74490618Stmm * detected... 74590618Stmm */ 74690618Stmm if (error != 0) 74790618Stmm free(scl, M_DEVBUF); 74890618Stmm return (error); 74990618Stmm} 75090618Stmm 75190618Stmmstatic struct resource * 75290618Stmmsbus_alloc_resource(device_t bus, device_t child, int type, int *rid, 75390618Stmm u_long start, u_long end, u_long count, u_int flags) 75490618Stmm{ 75590618Stmm struct sbus_softc *sc; 75690618Stmm struct rman *rm; 75790618Stmm struct resource *rv; 75890618Stmm struct resource_list *rl; 75990618Stmm struct resource_list_entry *rle; 760145186Smarius device_t schild; 76190618Stmm bus_space_handle_t bh; 76290618Stmm bus_addr_t toffs; 76390618Stmm bus_size_t tend; 764145186Smarius int i, slot; 765145186Smarius int isdefault, needactivate, passthrough; 76690618Stmm 767145185Smarius isdefault = (start == 0UL && end == ~0UL); 768145185Smarius needactivate = flags & RF_ACTIVE; 769145186Smarius passthrough = (device_get_parent(child) != bus); 770145186Smarius rle = NULL; 771145186Smarius sc = device_get_softc(bus); 772145186Smarius rl = BUS_GET_RESOURCE_LIST(bus, child); 77390618Stmm switch (type) { 77490618Stmm case SYS_RES_IRQ: 775145186Smarius return (resource_list_alloc(rl, bus, child, type, rid, start, 776145186Smarius end, count, flags)); 77790618Stmm case SYS_RES_MEMORY: 778145186Smarius if (!passthrough) { 779145186Smarius rle = resource_list_find(rl, type, *rid); 780145186Smarius if (rle == NULL) 781145186Smarius return (NULL); 782145186Smarius if (rle->res != NULL) 783145186Smarius panic("%s: resource entry is busy", __func__); 784145186Smarius if (isdefault) { 785145186Smarius start = rle->start; 786145186Smarius count = ulmax(count, rle->count); 787145186Smarius end = ulmax(rle->end, start + count - 1); 788145186Smarius } 789145186Smarius } 79090618Stmm rm = NULL; 79190618Stmm bh = toffs = tend = 0; 792145186Smarius schild = child; 793145186Smarius while (device_get_parent(schild) != bus) 794145186Smarius schild = device_get_parent(child); 795145186Smarius slot = sbus_get_slot(schild); 79690618Stmm for (i = 0; i < sc->sc_nrange; i++) { 797145186Smarius if (sc->sc_rd[i].rd_slot != slot || 79890618Stmm start < sc->sc_rd[i].rd_coffset || 79990618Stmm start > sc->sc_rd[i].rd_cend) 80090618Stmm continue; 80190618Stmm /* Disallow cross-range allocations. */ 80290618Stmm if (end > sc->sc_rd[i].rd_cend) 80390618Stmm return (NULL); 80490618Stmm /* We've found the connection to the parent bus */ 80590618Stmm toffs = start - sc->sc_rd[i].rd_coffset; 80690618Stmm tend = end - sc->sc_rd[i].rd_coffset; 80790618Stmm rm = &sc->sc_rd[i].rd_rman; 80890618Stmm bh = sc->sc_rd[i].rd_bushandle; 809159413Smarius break; 81090618Stmm } 811159413Smarius if (rm == NULL) 81290618Stmm return (NULL); 81390618Stmm flags &= ~RF_ACTIVE; 81490618Stmm rv = rman_reserve_resource(rm, toffs, tend, count, flags, 81590618Stmm child); 81690618Stmm if (rv == NULL) 81790618Stmm return (NULL); 818157896Simp rman_set_rid(rv, *rid); 81990618Stmm rman_set_bustag(rv, sc->sc_cbustag); 82090618Stmm rman_set_bushandle(rv, bh + rman_get_start(rv)); 82190618Stmm if (needactivate) { 82290618Stmm if (bus_activate_resource(child, type, *rid, rv)) { 82390618Stmm rman_release_resource(rv); 82490618Stmm return (NULL); 82590618Stmm } 82690618Stmm } 827145186Smarius if (!passthrough) 828145186Smarius rle->res = rv; 829145186Smarius return (rv); 83090618Stmm default: 83190618Stmm return (NULL); 83290618Stmm } 83390618Stmm} 83490618Stmm 83590618Stmmstatic int 83690618Stmmsbus_activate_resource(device_t bus, device_t child, int type, int rid, 83790618Stmm struct resource *r) 83890618Stmm{ 839159413Smarius void *p; 840159413Smarius int error; 84190618Stmm 842108798Stmm if (type == SYS_RES_IRQ) { 843108798Stmm return (BUS_ACTIVATE_RESOURCE(device_get_parent(bus), 844108798Stmm child, type, rid, r)); 845108798Stmm } 846159413Smarius if (type == SYS_RES_MEMORY) { 847159413Smarius /* 848159413Smarius * Need to memory-map the device space, as some drivers depend 849159413Smarius * on the virtual address being set and useable. 850159413Smarius */ 851159413Smarius error = sparc64_bus_mem_map(rman_get_bustag(r), 852159413Smarius rman_get_bushandle(r), rman_get_size(r), 0, 0, &p); 853159413Smarius if (error != 0) 854159413Smarius return (error); 855159413Smarius rman_set_virtual(r, p); 856159413Smarius } 85790618Stmm return (rman_activate_resource(r)); 85890618Stmm} 85990618Stmm 86090618Stmmstatic int 86190618Stmmsbus_deactivate_resource(device_t bus, device_t child, int type, int rid, 86290618Stmm struct resource *r) 86390618Stmm{ 86490618Stmm 865108798Stmm if (type == SYS_RES_IRQ) { 866108798Stmm return (BUS_DEACTIVATE_RESOURCE(device_get_parent(bus), 867108798Stmm child, type, rid, r)); 868108798Stmm } 869159413Smarius if (type == SYS_RES_MEMORY) { 870159413Smarius sparc64_bus_mem_unmap(rman_get_virtual(r), rman_get_size(r)); 871159413Smarius rman_set_virtual(r, NULL); 872159413Smarius } 87390618Stmm return (rman_deactivate_resource(r)); 87490618Stmm} 87590618Stmm 87690618Stmmstatic int 87790618Stmmsbus_release_resource(device_t bus, device_t child, int type, int rid, 87890618Stmm struct resource *r) 87990618Stmm{ 880145186Smarius struct resource_list *rl; 881108798Stmm struct resource_list_entry *rle; 882145186Smarius int error, passthrough; 88390618Stmm 884145186Smarius passthrough = (device_get_parent(child) != bus); 885145186Smarius rl = BUS_GET_RESOURCE_LIST(bus, child); 88690618Stmm if (type == SYS_RES_IRQ) 887145186Smarius return (resource_list_release(rl, bus, child, type, rid, r)); 888145186Smarius if ((rman_get_flags(r) & RF_ACTIVE) != 0) { 889145186Smarius error = bus_deactivate_resource(child, type, rid, r); 890108798Stmm if (error != 0) 891108798Stmm return (error); 89290618Stmm } 893145186Smarius error = rman_release_resource(r); 894145186Smarius if (error != 0 || passthrough) 895108798Stmm return (error); 896145186Smarius rle = resource_list_find(rl, type, rid); 897108798Stmm if (rle == NULL) 898145185Smarius panic("%s: cannot find resource", __func__); 899108798Stmm if (rle->res == NULL) 900145185Smarius panic("%s: resource entry is not busy", __func__); 901108798Stmm rle->res = NULL; 902108798Stmm return (0); 90390618Stmm} 90490618Stmm 905167308Smariusstatic bus_dma_tag_t 906167308Smariussbus_get_dma_tag(device_t bus, device_t child) 907167308Smarius{ 908167308Smarius struct sbus_softc *sc; 909167308Smarius 910167308Smarius sc = device_get_softc(bus); 911167308Smarius return (sc->sc_cdmatag); 912167308Smarius} 913167308Smarius 914152684Smariusstatic const struct ofw_bus_devinfo * 915152684Smariussbus_get_devinfo(device_t bus, device_t child) 916152684Smarius{ 917152684Smarius struct sbus_devinfo *sdi; 918152684Smarius 919152684Smarius sdi = device_get_ivars(child); 920152684Smarius return (&sdi->sdi_obdinfo); 921152684Smarius} 922152684Smarius 92390618Stmm/* 92490618Stmm * Handle an overtemp situation. 92590618Stmm * 92690618Stmm * SPARCs have temperature sensors which generate interrupts 92790618Stmm * if the machine's temperature exceeds a certain threshold. 92890618Stmm * This handles the interrupt and powers off the machine. 92990618Stmm * The same needs to be done to PCI controller drivers. 93090618Stmm */ 931170852Smariusstatic void 93290618Stmmsbus_overtemp(void *arg) 93390618Stmm{ 93490618Stmm 93590618Stmm printf("DANGER: OVER TEMPERATURE detected\nShutting down NOW.\n"); 93690618Stmm shutdown_nice(RB_POWEROFF); 93790618Stmm} 93890618Stmm 93990618Stmm/* Try to shut down in time in case of power failure. */ 940170852Smariusstatic void 94190618Stmmsbus_pwrfail(void *arg) 94290618Stmm{ 94390618Stmm 94490618Stmm printf("Power failure detected\nShutting down NOW.\n"); 94590618Stmm shutdown_nice(0); 94690618Stmm} 94790618Stmm 94890618Stmmstatic bus_space_tag_t 94990618Stmmsbus_alloc_bustag(struct sbus_softc *sc) 95090618Stmm{ 95190618Stmm bus_space_tag_t sbt; 95290618Stmm 95390618Stmm sbt = (bus_space_tag_t)malloc(sizeof(struct bus_space_tag), M_DEVBUF, 95490618Stmm M_NOWAIT | M_ZERO); 95590618Stmm if (sbt == NULL) 956145185Smarius panic("%s: out of memory", __func__); 95790618Stmm 958108815Stmm sbt->bst_cookie = sc; 959170852Smarius sbt->bst_parent = rman_get_bustag(sc->sc_sysio_res); 960108815Stmm sbt->bst_type = SBUS_BUS_SPACE; 96190618Stmm return (sbt); 96290618Stmm} 963133589Smarius 964152684Smariusstatic int 965152684Smariussbus_print_res(struct sbus_devinfo *sdi) 966133589Smarius{ 967152684Smarius int rv; 968133589Smarius 969152684Smarius rv = 0; 970152684Smarius rv += resource_list_print_type(&sdi->sdi_rl, "mem", SYS_RES_MEMORY, 971152684Smarius "%#lx"); 972152684Smarius rv += resource_list_print_type(&sdi->sdi_rl, "irq", SYS_RES_IRQ, 973152684Smarius "%ld"); 974152684Smarius return (rv); 975133589Smarius} 976