sbus.c revision 190114
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 190114 2009-03-19 21:14:45Z 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 { 156172066Smarius device_t sc_dev; 15790618Stmm bus_dma_tag_t sc_cdmatag; 15890618Stmm bus_space_tag_t sc_cbustag; 15990618Stmm int sc_clockfreq; /* clock frequency (in Hz) */ 16090618Stmm int sc_nrange; 16190618Stmm struct sbus_rd *sc_rd; 162145185Smarius int sc_burst; /* burst transfer sizes supp. */ 16390618Stmm 16490618Stmm struct resource *sc_sysio_res; 165145185Smarius int sc_ign; /* IGN for this sysio */ 166145185Smarius struct iommu_state sc_is; /* IOMMU state (iommuvar.h) */ 16790618Stmm 16890618Stmm struct resource *sc_ot_ires; 16990618Stmm void *sc_ot_ihand; 17090618Stmm struct resource *sc_pf_ires; 17190618Stmm void *sc_pf_ihand; 17290618Stmm}; 17390618Stmm 17490618Stmm#define SYSIO_READ8(sc, off) \ 175170852Smarius bus_read_8((sc)->sc_sysio_res, (off)) 17690618Stmm#define SYSIO_WRITE8(sc, off, v) \ 177170852Smarius bus_write_8((sc)->sc_sysio_res, (off), (v)) 17890618Stmm 179145185Smariusstatic device_probe_t sbus_probe; 180145186Smariusstatic device_attach_t sbus_attach; 181145185Smariusstatic bus_print_child_t sbus_print_child; 182145185Smariusstatic bus_probe_nomatch_t sbus_probe_nomatch; 183145185Smariusstatic bus_read_ivar_t sbus_read_ivar; 184145185Smariusstatic bus_get_resource_list_t sbus_get_resource_list; 185145185Smariusstatic bus_setup_intr_t sbus_setup_intr; 186145185Smariusstatic bus_alloc_resource_t sbus_alloc_resource; 187145185Smariusstatic bus_release_resource_t sbus_release_resource; 188145185Smariusstatic bus_activate_resource_t sbus_activate_resource; 189145185Smariusstatic bus_deactivate_resource_t sbus_deactivate_resource; 190167308Smariusstatic bus_get_dma_tag_t sbus_get_dma_tag; 191152684Smariusstatic ofw_bus_get_devinfo_t sbus_get_devinfo; 19290618Stmm 193190112Smariusstatic int sbus_inlist(const char *, const char *const *); 194152684Smariusstatic struct sbus_devinfo * sbus_setup_dinfo(device_t, struct sbus_softc *, 195152684Smarius phandle_t); 196152684Smariusstatic void sbus_destroy_dinfo(struct sbus_devinfo *); 197172066Smariusstatic void sbus_intr_enable(void *); 198172066Smariusstatic void sbus_intr_disable(void *); 199178443Smariusstatic void sbus_intr_assign(void *); 200178443Smariusstatic void sbus_intr_clear(void *); 201172066Smariusstatic int sbus_find_intrmap(struct sbus_softc *, u_int, bus_addr_t *, 202172066Smarius bus_addr_t *); 20390618Stmmstatic bus_space_tag_t sbus_alloc_bustag(struct sbus_softc *); 204170852Smariusstatic driver_intr_t sbus_overtemp; 205170852Smariusstatic driver_intr_t sbus_pwrfail; 206152684Smariusstatic int sbus_print_res(struct sbus_devinfo *); 20790618Stmm 20890618Stmmstatic device_method_t sbus_methods[] = { 20990618Stmm /* Device interface */ 21090618Stmm DEVMETHOD(device_probe, sbus_probe), 211145186Smarius DEVMETHOD(device_attach, sbus_attach), 212154870Smarius DEVMETHOD(device_shutdown, bus_generic_shutdown), 213154870Smarius DEVMETHOD(device_suspend, bus_generic_suspend), 214154870Smarius DEVMETHOD(device_resume, bus_generic_resume), 21590618Stmm 21690618Stmm /* Bus interface */ 21790618Stmm DEVMETHOD(bus_print_child, sbus_print_child), 21890618Stmm DEVMETHOD(bus_probe_nomatch, sbus_probe_nomatch), 21990618Stmm DEVMETHOD(bus_read_ivar, sbus_read_ivar), 22090618Stmm DEVMETHOD(bus_alloc_resource, sbus_alloc_resource), 22190618Stmm DEVMETHOD(bus_activate_resource, sbus_activate_resource), 22290618Stmm DEVMETHOD(bus_deactivate_resource, sbus_deactivate_resource), 22390618Stmm DEVMETHOD(bus_release_resource, sbus_release_resource), 224190112Smarius DEVMETHOD(bus_setup_intr, sbus_setup_intr), 225190112Smarius DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 226190112Smarius DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 22790618Stmm DEVMETHOD(bus_get_resource_list, sbus_get_resource_list), 228190114Smarius DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str), 229167308Smarius DEVMETHOD(bus_get_dma_tag, sbus_get_dma_tag), 23090618Stmm 231133589Smarius /* ofw_bus interface */ 232152684Smarius DEVMETHOD(ofw_bus_get_devinfo, sbus_get_devinfo), 233152684Smarius DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 234152684Smarius DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 235152684Smarius DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 236152684Smarius DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 237152684Smarius DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 238133589Smarius 239190112Smarius KOBJMETHOD_END 24090618Stmm}; 24190618Stmm 24290618Stmmstatic driver_t sbus_driver = { 24390618Stmm "sbus", 24490618Stmm sbus_methods, 24590618Stmm sizeof(struct sbus_softc), 24690618Stmm}; 24790618Stmm 24890618Stmmstatic devclass_t sbus_devclass; 24990618Stmm 25090618StmmDRIVER_MODULE(sbus, nexus, sbus_driver, sbus_devclass, 0, 0); 251182062SmariusMODULE_VERSION(sbus, 1); 25290618Stmm 25390618Stmm#define OFW_SBUS_TYPE "sbus" 25490618Stmm#define OFW_SBUS_NAME "sbus" 25590618Stmm 256172066Smariusstatic const struct intr_controller sbus_ic = { 257172066Smarius sbus_intr_enable, 258172066Smarius sbus_intr_disable, 259178443Smarius sbus_intr_assign, 260178443Smarius sbus_intr_clear 261172066Smarius}; 262172066Smarius 263172066Smariusstruct sbus_icarg { 264172066Smarius struct sbus_softc *sica_sc; 265172066Smarius bus_addr_t sica_map; 266172066Smarius bus_addr_t sica_clr; 267172066Smarius}; 268172066Smarius 269190112Smariusstatic const char *const sbus_order_first[] = { 270146391Smarius "auxio", 271146391Smarius "dma", 272146391Smarius NULL 273146391Smarius}; 274146391Smarius 27590618Stmmstatic int 276190112Smariussbus_inlist(const char *name, const char *const *list) 277146391Smarius{ 278146391Smarius int i; 279146391Smarius 280146391Smarius if (name == NULL) 281146391Smarius return (0); 282146391Smarius for (i = 0; list[i] != NULL; i++) { 283146391Smarius if (strcmp(name, list[i]) == 0) 284146391Smarius return (1); 285146391Smarius } 286146391Smarius return (0); 287146391Smarius} 288146391Smarius 289146391Smariusstatic int 29090618Stmmsbus_probe(device_t dev) 29190618Stmm{ 292167308Smarius const char *t; 293145186Smarius 294167308Smarius t = ofw_bus_get_type(dev); 295145186Smarius if (((t == NULL || strcmp(t, OFW_SBUS_TYPE) != 0)) && 296167308Smarius strcmp(ofw_bus_get_name(dev), OFW_SBUS_NAME) != 0) 297145186Smarius return (ENXIO); 298145186Smarius device_set_desc(dev, "U2S UPA-SBus bridge"); 299145186Smarius return (0); 300145186Smarius} 301145186Smarius 302145186Smariusstatic int 303145186Smariussbus_attach(device_t dev) 304145186Smarius{ 305145185Smarius struct sbus_softc *sc; 30690618Stmm struct sbus_devinfo *sdi; 307172066Smarius struct sbus_icarg *sica; 30890618Stmm struct sbus_ranges *range; 30990618Stmm struct resource *res; 310167308Smarius struct resource_list *rl; 31190618Stmm device_t cdev; 312172066Smarius bus_addr_t intrclr, intrmap, phys; 31390618Stmm bus_size_t size; 314172066Smarius u_long vec; 315145185Smarius phandle_t child, node; 316190112Smarius uint32_t prop; 317190112Smarius int i, j; 31890618Stmm 319145185Smarius sc = device_get_softc(dev); 320172066Smarius sc->sc_dev = dev; 321167308Smarius node = ofw_bus_get_node(dev); 322145185Smarius 323190112Smarius i = 0; 324190112Smarius sc->sc_sysio_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i, 325167308Smarius RF_ACTIVE); 326167308Smarius if (sc->sc_sysio_res == NULL) 327145185Smarius panic("%s: cannot allocate device memory", __func__); 32890618Stmm 329190112Smarius if (OF_getprop(node, "interrupts", &prop, sizeof(prop)) == -1) 330145185Smarius panic("%s: cannot get IGN", __func__); 331190112Smarius sc->sc_ign = INTIGN(prop); 33290618Stmm sc->sc_cbustag = sbus_alloc_bustag(sc); 33390618Stmm 33490618Stmm /* 33590618Stmm * Record clock frequency for synchronous SCSI. 33690618Stmm * IS THIS THE CORRECT DEFAULT?? 33790618Stmm */ 338190112Smarius if (OF_getprop(node, "clock-frequency", &prop, sizeof(prop)) == -1) 339190112Smarius prop = 25000000; 340190112Smarius sc->sc_clockfreq = prop; 341190112Smarius prop /= 1000; 342190112Smarius device_printf(dev, "clock %d.%03d MHz\n", prop / 1000, prop % 1000); 34390618Stmm 34490618Stmm /* 34590618Stmm * Collect address translations from the OBP. 34690618Stmm */ 34790618Stmm if ((sc->sc_nrange = OF_getprop_alloc(node, "ranges", 34890618Stmm sizeof(*range), (void **)&range)) == -1) { 349145185Smarius panic("%s: error getting ranges property", __func__); 35090618Stmm } 35190618Stmm sc->sc_rd = (struct sbus_rd *)malloc(sizeof(*sc->sc_rd) * sc->sc_nrange, 35290618Stmm M_DEVBUF, M_NOWAIT); 35390618Stmm if (sc->sc_rd == NULL) 354145185Smarius panic("%s: cannot allocate rmans", __func__); 35590618Stmm /* 35690618Stmm * Preallocate all space that the SBus bridge decodes, so that nothing 35790618Stmm * else gets in the way; set up rmans etc. 35890618Stmm */ 359167308Smarius rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev); 36090618Stmm for (i = 0; i < sc->sc_nrange; i++) { 36190618Stmm phys = range[i].poffset | ((bus_addr_t)range[i].pspace << 32); 36290618Stmm size = range[i].size; 36390618Stmm sc->sc_rd[i].rd_slot = range[i].cspace; 36490618Stmm sc->sc_rd[i].rd_coffset = range[i].coffset; 36590618Stmm sc->sc_rd[i].rd_cend = sc->sc_rd[i].rd_coffset + size; 366190112Smarius j = resource_list_add_next(rl, SYS_RES_MEMORY, phys, 367167308Smarius phys + size - 1, size); 368190112Smarius if ((res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &j, 369167308Smarius RF_ACTIVE)) == NULL) 370145185Smarius panic("%s: cannot allocate decoded range", __func__); 37190618Stmm sc->sc_rd[i].rd_bushandle = rman_get_bushandle(res); 37290618Stmm sc->sc_rd[i].rd_rman.rm_type = RMAN_ARRAY; 37390618Stmm sc->sc_rd[i].rd_rman.rm_descr = "SBus Device Memory"; 37490618Stmm if (rman_init(&sc->sc_rd[i].rd_rman) != 0 || 37590618Stmm rman_manage_region(&sc->sc_rd[i].rd_rman, 0, size) != 0) 376145185Smarius panic("%s: failed to set up memory rman", __func__); 37790618Stmm sc->sc_rd[i].rd_poffset = phys; 37890618Stmm sc->sc_rd[i].rd_pend = phys + size; 37990618Stmm sc->sc_rd[i].rd_res = res; 38090618Stmm } 38190618Stmm free(range, M_OFWPROP); 38290618Stmm 38390618Stmm /* 38490618Stmm * Get the SBus burst transfer size if burst transfers are supported. 38590618Stmm */ 386190112Smarius if (OF_getprop(node, "up-burst-sizes", &sc->sc_burst, 38790618Stmm sizeof(sc->sc_burst)) == -1 || sc->sc_burst == 0) 388190112Smarius sc->sc_burst = 389190112Smarius (SBUS_BURST64_DEF << SBUS_BURST64_SHIFT) | SBUS_BURST_DEF; 39090618Stmm 391190112Smarius 39290618Stmm /* initalise the IOMMU */ 39390618Stmm 39490618Stmm /* punch in our copies */ 395171730Smarius sc->sc_is.is_pmaxaddr = IOMMU_MAXADDR(SBUS_IOMMU_BITS); 396170852Smarius sc->sc_is.is_bustag = rman_get_bustag(sc->sc_sysio_res); 397170852Smarius sc->sc_is.is_bushandle = rman_get_bushandle(sc->sc_sysio_res); 39890618Stmm sc->sc_is.is_iommu = SBR_IOMMU; 39990618Stmm sc->sc_is.is_dtag = SBR_IOMMU_TLB_TAG_DIAG; 40090618Stmm sc->sc_is.is_ddram = SBR_IOMMU_TLB_DATA_DIAG; 40190618Stmm sc->sc_is.is_dqueue = SBR_IOMMU_QUEUE_DIAG; 40290618Stmm sc->sc_is.is_dva = SBR_IOMMU_SVADIAG; 40390618Stmm sc->sc_is.is_dtcmp = 0; 40490618Stmm sc->sc_is.is_sb[0] = SBR_STRBUF; 405123865Sobrien sc->sc_is.is_sb[1] = 0; 40690618Stmm 407100188Stmm /* 408100188Stmm * Note: the SBus IOMMU ignores the high bits of an address, so a NULL 409100188Stmm * DMA pointer will be translated by the first page of the IOTSB. 410100188Stmm * To detect bugs we'll allocate and ignore the first entry. 411100188Stmm */ 412178840Smarius iommu_init(device_get_nameunit(dev), &sc->sc_is, 3, -1, 1); 41390618Stmm 414116213Stmm /* Create the DMA tag. */ 415171730Smarius if (bus_dma_tag_create(bus_get_dma_tag(dev), 8, 0, 416171730Smarius sc->sc_is.is_pmaxaddr, ~0, NULL, NULL, sc->sc_is.is_pmaxaddr, 417171730Smarius 0xff, 0xffffffff, 0, NULL, NULL, &sc->sc_cdmatag) != 0) 418145185Smarius panic("%s: bus_dma_tag_create failed", __func__); 419116213Stmm /* Customize the tag. */ 420116213Stmm sc->sc_cdmatag->dt_cookie = &sc->sc_is; 421116541Stmm sc->sc_cdmatag->dt_mt = &iommu_dma_methods; 422116213Stmm 423172066Smarius /* 424172066Smarius * Hunt through all the interrupt mapping regs and register our 425172066Smarius * interrupt controller for the corresponding interrupt vectors. 426190112Smarius * We do this early in order to be able to catch stray interrupts. 427172066Smarius */ 428172066Smarius for (i = 0; i <= SBUS_MAX_INO; i++) { 429172066Smarius if (sbus_find_intrmap(sc, i, &intrmap, &intrclr) == 0) 430172066Smarius continue; 431172066Smarius sica = malloc(sizeof(*sica), M_DEVBUF, M_NOWAIT); 432172066Smarius if (sica == NULL) 433172066Smarius panic("%s: could not allocate interrupt controller " 434172066Smarius "argument", __func__); 435172066Smarius sica->sica_sc = sc; 436172066Smarius sica->sica_map = intrmap; 437172066Smarius sica->sica_clr = intrclr; 438172066Smarius#ifdef SBUS_DEBUG 439172066Smarius device_printf(dev, 440172066Smarius "intr map (INO %d, %s) %#lx: %#lx, clr: %#lx\n", 441172066Smarius i, (i & INTMAP_OBIO_MASK) == 0 ? "SBus slot" : "OBIO", 442172066Smarius (u_long)intrmap, (u_long)SYSIO_READ8(sc, intrmap), 443172066Smarius (u_long)intrclr); 444172066Smarius#endif 445190112Smarius j = intr_controller_register(INTMAP_VEC(sc->sc_ign, i), 446190112Smarius &sbus_ic, sica); 447190112Smarius if (j != 0) 448190112Smarius device_printf(dev, "could not register interrupt " 449190112Smarius "controller for INO %d (%d)\n", i, j); 450172066Smarius } 451172066Smarius 452145185Smarius /* Enable the over-temperature and power-fail interrupts. */ 453190112Smarius i = 4; 454190112Smarius sc->sc_ot_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i, 455167308Smarius RF_ACTIVE); 456166034Smarius if (sc->sc_ot_ires == NULL || 457172066Smarius INTIGN(vec = rman_get_start(sc->sc_ot_ires)) != sc->sc_ign || 458172066Smarius INTVEC(SYSIO_READ8(sc, SBR_THERM_INT_MAP)) != vec || 459172066Smarius intr_vectors[vec].iv_ic != &sbus_ic || 460190112Smarius bus_setup_intr(dev, sc->sc_ot_ires, INTR_TYPE_MISC | INTR_FAST, 461170852Smarius NULL, sbus_overtemp, sc, &sc->sc_ot_ihand) != 0) 462166034Smarius panic("%s: failed to set up temperature interrupt", __func__); 463190112Smarius i = 3; 464190112Smarius sc->sc_pf_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i, 465167308Smarius RF_ACTIVE); 466166034Smarius if (sc->sc_pf_ires == NULL || 467172066Smarius INTIGN(vec = rman_get_start(sc->sc_pf_ires)) != sc->sc_ign || 468172066Smarius INTVEC(SYSIO_READ8(sc, SBR_POWER_INT_MAP)) != vec || 469172066Smarius intr_vectors[vec].iv_ic != &sbus_ic || 470190112Smarius bus_setup_intr(dev, sc->sc_pf_ires, INTR_TYPE_MISC | INTR_FAST, 471170852Smarius NULL, sbus_pwrfail, sc, &sc->sc_pf_ihand) != 0) 472166034Smarius panic("%s: failed to set up power fail interrupt", __func__); 47390618Stmm 47490618Stmm /* Initialize the counter-timer. */ 475178840Smarius sparc64_counter_init(device_get_nameunit(dev), 476178840Smarius rman_get_bustag(sc->sc_sysio_res), 477170852Smarius rman_get_bushandle(sc->sc_sysio_res), SBR_TC0); 47890618Stmm 47990618Stmm /* 48090618Stmm * Loop through ROM children, fixing any relative addresses 48190618Stmm * and then configuring each device. 48290618Stmm */ 48390618Stmm for (child = OF_child(node); child != 0; child = OF_peer(child)) { 484152684Smarius if ((sdi = sbus_setup_dinfo(dev, sc, child)) == NULL) 48590618Stmm continue; 486146391Smarius /* 487146391Smarius * For devices where there are variants that are actually 488146391Smarius * split into two SBus devices (as opposed to the first 489146391Smarius * half of the device being a SBus device and the second 490146391Smarius * half hanging off of the first one) like 'auxio' and 491146391Smarius * 'SUNW,fdtwo' or 'dma' and 'esp' probe the SBus device 492146391Smarius * which is a prerequisite to the driver attaching to the 493146391Smarius * second one with a lower order. Saves us from dealing 494146391Smarius * with different probe orders in the respective device 495146391Smarius * drivers which generally is more hackish. 496146391Smarius */ 497146391Smarius cdev = device_add_child_ordered(dev, (OF_child(child) == 0 && 498152684Smarius sbus_inlist(sdi->sdi_obdinfo.obd_name, sbus_order_first)) ? 499152684Smarius SBUS_ORDER_FIRST : SBUS_ORDER_NORMAL, NULL, -1); 500152684Smarius if (cdev == NULL) { 501152684Smarius device_printf(dev, 502152684Smarius "<%s>: device_add_child_ordered failed\n", 503152684Smarius sdi->sdi_obdinfo.obd_name); 504152684Smarius sbus_destroy_dinfo(sdi); 505152684Smarius continue; 506152684Smarius } 50790618Stmm device_set_ivars(cdev, sdi); 50890618Stmm } 509145186Smarius return (bus_generic_attach(dev)); 51090618Stmm} 51190618Stmm 51290618Stmmstatic struct sbus_devinfo * 513152684Smariussbus_setup_dinfo(device_t dev, struct sbus_softc *sc, phandle_t node) 51490618Stmm{ 51590618Stmm struct sbus_devinfo *sdi; 51690618Stmm struct sbus_regs *reg; 51790618Stmm u_int32_t base, iv, *intr; 51890618Stmm int i, nreg, nintr, slot, rslot; 51990618Stmm 520111119Simp sdi = malloc(sizeof(*sdi), M_DEVBUF, M_ZERO | M_WAITOK); 521152684Smarius if (ofw_bus_gen_setup_devinfo(&sdi->sdi_obdinfo, node) != 0) { 522152684Smarius free(sdi, M_DEVBUF); 52390618Stmm return (NULL); 524152684Smarius } 52590618Stmm resource_list_init(&sdi->sdi_rl); 52690618Stmm slot = -1; 52790618Stmm nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®); 52890618Stmm if (nreg == -1) { 529152684Smarius if (sdi->sdi_obdinfo.obd_type == NULL || 530152684Smarius strcmp(sdi->sdi_obdinfo.obd_type, "hierarchical") != 0) { 531152684Smarius device_printf(dev, "<%s>: incomplete\n", 532152684Smarius sdi->sdi_obdinfo.obd_name); 533152684Smarius goto fail; 53490618Stmm } 53590618Stmm } else { 53690618Stmm for (i = 0; i < nreg; i++) { 53790618Stmm base = reg[i].sbr_offset; 53890618Stmm if (SBUS_ABS(base)) { 53990618Stmm rslot = SBUS_ABS_TO_SLOT(base); 54090618Stmm base = SBUS_ABS_TO_OFFSET(base); 54190618Stmm } else 54290618Stmm rslot = reg[i].sbr_slot; 543152684Smarius if (slot != -1 && slot != rslot) { 544152684Smarius device_printf(dev, "<%s>: multiple slots\n", 545152684Smarius sdi->sdi_obdinfo.obd_name); 546152684Smarius free(reg, M_OFWPROP); 547152684Smarius goto fail; 548152684Smarius } 54990618Stmm slot = rslot; 55090618Stmm 55190618Stmm resource_list_add(&sdi->sdi_rl, SYS_RES_MEMORY, i, 55290618Stmm base, base + reg[i].sbr_size, reg[i].sbr_size); 55390618Stmm } 55490618Stmm free(reg, M_OFWPROP); 55590618Stmm } 55690618Stmm sdi->sdi_slot = slot; 55790618Stmm 55890618Stmm /* 559145185Smarius * The `interrupts' property contains the SBus interrupt level. 56090618Stmm */ 561145185Smarius nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr), 562145185Smarius (void **)&intr); 56390618Stmm if (nintr != -1) { 56490618Stmm for (i = 0; i < nintr; i++) { 56590618Stmm iv = intr[i]; 56690618Stmm /* 567145185Smarius * SBus card devices need the slot number encoded into 56890618Stmm * the vector as this is generally not done. 56990618Stmm */ 570107477Stmm if ((iv & INTMAP_OBIO_MASK) == 0) 57190618Stmm iv |= slot << 3; 572172066Smarius iv = INTMAP_VEC(sc->sc_ign, iv); 57390618Stmm resource_list_add(&sdi->sdi_rl, SYS_RES_IRQ, i, 57490618Stmm iv, iv, 1); 57590618Stmm } 57690618Stmm free(intr, M_OFWPROP); 57790618Stmm } 57890618Stmm if (OF_getprop(node, "burst-sizes", &sdi->sdi_burstsz, 57990618Stmm sizeof(sdi->sdi_burstsz)) == -1) 58090618Stmm sdi->sdi_burstsz = sc->sc_burst; 58190618Stmm else 58290618Stmm sdi->sdi_burstsz &= sc->sc_burst; 583145186Smarius if (OF_getprop(node, "clock-frequency", &sdi->sdi_clockfreq, 584145186Smarius sizeof(sdi->sdi_clockfreq)) == -1) 585145186Smarius sdi->sdi_clockfreq = sc->sc_clockfreq; 58690618Stmm 58790618Stmm return (sdi); 588152684Smarius 589152684Smariusfail: 590152684Smarius sbus_destroy_dinfo(sdi); 591152684Smarius return (NULL); 59290618Stmm} 59390618Stmm 59490618Stmmstatic void 59590618Stmmsbus_destroy_dinfo(struct sbus_devinfo *dinfo) 59690618Stmm{ 59790618Stmm 59890618Stmm resource_list_free(&dinfo->sdi_rl); 599152684Smarius ofw_bus_gen_destroy_devinfo(&dinfo->sdi_obdinfo); 60090618Stmm free(dinfo, M_DEVBUF); 60190618Stmm} 60290618Stmm 60390618Stmmstatic int 60490618Stmmsbus_print_child(device_t dev, device_t child) 60590618Stmm{ 60690618Stmm int rv; 60790618Stmm 60890618Stmm rv = bus_print_child_header(dev, child); 609152684Smarius rv += sbus_print_res(device_get_ivars(child)); 61090618Stmm rv += bus_print_child_footer(dev, child); 61190618Stmm return (rv); 61290618Stmm} 61390618Stmm 61490618Stmmstatic void 61590618Stmmsbus_probe_nomatch(device_t dev, device_t child) 61690618Stmm{ 617152684Smarius const char *type; 61890618Stmm 619152684Smarius device_printf(dev, "<%s>", ofw_bus_get_name(child)); 620152684Smarius sbus_print_res(device_get_ivars(child)); 621152684Smarius type = ofw_bus_get_type(child); 622145186Smarius printf(" type %s (no driver attached)\n", 623152684Smarius type != NULL ? type : "unknown"); 62490618Stmm} 62590618Stmm 62690618Stmmstatic int 62790618Stmmsbus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 62890618Stmm{ 629146391Smarius struct sbus_softc *sc; 63090618Stmm struct sbus_devinfo *dinfo; 63190618Stmm 632146391Smarius sc = device_get_softc(dev); 63390618Stmm if ((dinfo = device_get_ivars(child)) == NULL) 63490618Stmm return (ENOENT); 63590618Stmm switch (which) { 63690618Stmm case SBUS_IVAR_BURSTSZ: 63790618Stmm *result = dinfo->sdi_burstsz; 63890618Stmm break; 63990618Stmm case SBUS_IVAR_CLOCKFREQ: 640145186Smarius *result = dinfo->sdi_clockfreq; 64190618Stmm break; 642146391Smarius case SBUS_IVAR_IGN: 643146391Smarius *result = sc->sc_ign; 644146391Smarius break; 64590618Stmm case SBUS_IVAR_SLOT: 64690618Stmm *result = dinfo->sdi_slot; 64790618Stmm break; 64890618Stmm default: 64990618Stmm return (ENOENT); 65090618Stmm } 651146391Smarius return (0); 65290618Stmm} 65390618Stmm 65490618Stmmstatic struct resource_list * 65590618Stmmsbus_get_resource_list(device_t dev, device_t child) 65690618Stmm{ 65790618Stmm struct sbus_devinfo *sdi; 65890618Stmm 65990618Stmm sdi = device_get_ivars(child); 66090618Stmm return (&sdi->sdi_rl); 66190618Stmm} 66290618Stmm 663172066Smariusstatic void 664172066Smariussbus_intr_enable(void *arg) 665170387Spiso{ 666172066Smarius struct intr_vector *iv = arg; 667172066Smarius struct sbus_icarg *sica = iv->iv_icarg; 668170387Spiso 669172066Smarius SYSIO_WRITE8(sica->sica_sc, sica->sica_map, 670172066Smarius INTMAP_ENABLE(iv->iv_vec, iv->iv_mid)); 671170387Spiso} 672178443Smarius 673172066Smariusstatic void 674172066Smariussbus_intr_disable(void *arg) 675172066Smarius{ 676172066Smarius struct intr_vector *iv = arg; 677172066Smarius struct sbus_icarg *sica = iv->iv_icarg; 678170387Spiso 679172066Smarius SYSIO_WRITE8(sica->sica_sc, sica->sica_map, iv->iv_vec); 680172066Smarius} 681172066Smarius 682170387Spisostatic void 683178443Smariussbus_intr_assign(void *arg) 68490618Stmm{ 685172066Smarius struct intr_vector *iv = arg; 686172066Smarius struct sbus_icarg *sica = iv->iv_icarg; 68790618Stmm 688178443Smarius SYSIO_WRITE8(sica->sica_sc, sica->sica_map, INTMAP_TID( 689178443Smarius SYSIO_READ8(sica->sica_sc, sica->sica_map), iv->iv_mid)); 690178443Smarius} 691178443Smarius 692178443Smariusstatic void 693178443Smariussbus_intr_clear(void *arg) 694178443Smarius{ 695178443Smarius struct intr_vector *iv = arg; 696178443Smarius struct sbus_icarg *sica = iv->iv_icarg; 697178443Smarius 698172066Smarius SYSIO_WRITE8(sica->sica_sc, sica->sica_clr, 0); 69990618Stmm} 70090618Stmm 70190618Stmmstatic int 702172066Smariussbus_find_intrmap(struct sbus_softc *sc, u_int ino, bus_addr_t *intrmapptr, 703172066Smarius bus_addr_t *intrclrptr) 70490618Stmm{ 705172066Smarius bus_addr_t intrclr, intrmap; 706172066Smarius int i; 70790618Stmm 708172066Smarius if (ino > SBUS_MAX_INO) { 709172066Smarius device_printf(sc->sc_dev, "out of range INO %d requested\n", 710172066Smarius ino); 711172066Smarius return (0); 712107474Stmm } 71390618Stmm 714172066Smarius if ((ino & INTMAP_OBIO_MASK) == 0) { 715172066Smarius intrmap = SBR_SLOT0_INT_MAP + INTSLOT(ino) * 8; 716172066Smarius intrclr = SBR_SLOT0_INT_CLR + 717172066Smarius (INTSLOT(ino) * 8 * 8) + (INTPRI(ino) * 8); 718172066Smarius } else { 719172066Smarius intrclr = 0; 720172066Smarius for (i = 0, intrmap = SBR_SCSI_INT_MAP; 721172066Smarius intrmap <= SBR_RESERVED_INT_MAP; intrmap += 8, i++) { 722172066Smarius if (INTVEC(SYSIO_READ8(sc, intrmap)) == 723172066Smarius INTMAP_VEC(sc->sc_ign, ino)) { 724172066Smarius intrclr = SBR_SCSI_INT_CLR + i * 8; 725172066Smarius break; 726172066Smarius } 727172066Smarius } 728172066Smarius if (intrclr == 0) 729172066Smarius return (0); 73090618Stmm } 731172066Smarius if (intrmapptr != NULL) 732172066Smarius *intrmapptr = intrmap; 733172066Smarius if (intrclrptr != NULL) 734172066Smarius *intrclrptr = intrclr; 735172066Smarius return (1); 73690618Stmm} 73790618Stmm 73890618Stmmstatic int 739172066Smariussbus_setup_intr(device_t dev, device_t child, struct resource *ires, int flags, 740172066Smarius driver_filter_t *filt, driver_intr_t *intr, void *arg, void **cookiep) 74190618Stmm{ 742172066Smarius struct sbus_softc *sc; 743172066Smarius u_long vec; 74490618Stmm 745172066Smarius sc = device_get_softc(dev); 74690618Stmm /* 747172066Smarius * Make sure the vector is fully specified and we registered 748172066Smarius * our interrupt controller for it. 749172066Smarius */ 750172066Smarius vec = rman_get_start(ires); 751172066Smarius if (INTIGN(vec) != sc->sc_ign || intr_vectors[vec].iv_ic != &sbus_ic) { 752172066Smarius device_printf(dev, "invalid interrupt vector 0x%lx\n", vec); 753172066Smarius return (EINVAL); 754172066Smarius } 755172066Smarius return (bus_generic_setup_intr(dev, child, ires, flags, filt, intr, 756172066Smarius arg, cookiep)); 75790618Stmm} 75890618Stmm 75990618Stmmstatic struct resource * 76090618Stmmsbus_alloc_resource(device_t bus, device_t child, int type, int *rid, 76190618Stmm u_long start, u_long end, u_long count, u_int flags) 76290618Stmm{ 76390618Stmm struct sbus_softc *sc; 76490618Stmm struct rman *rm; 76590618Stmm struct resource *rv; 76690618Stmm struct resource_list *rl; 76790618Stmm struct resource_list_entry *rle; 768145186Smarius device_t schild; 76990618Stmm bus_space_handle_t bh; 77090618Stmm bus_addr_t toffs; 77190618Stmm bus_size_t tend; 772145186Smarius int i, slot; 773145186Smarius int isdefault, needactivate, passthrough; 77490618Stmm 775145185Smarius isdefault = (start == 0UL && end == ~0UL); 776145185Smarius needactivate = flags & RF_ACTIVE; 777145186Smarius passthrough = (device_get_parent(child) != bus); 778145186Smarius rle = NULL; 779145186Smarius sc = device_get_softc(bus); 780145186Smarius rl = BUS_GET_RESOURCE_LIST(bus, child); 78190618Stmm switch (type) { 78290618Stmm case SYS_RES_IRQ: 783145186Smarius return (resource_list_alloc(rl, bus, child, type, rid, start, 784145186Smarius end, count, flags)); 78590618Stmm case SYS_RES_MEMORY: 786145186Smarius if (!passthrough) { 787145186Smarius rle = resource_list_find(rl, type, *rid); 788145186Smarius if (rle == NULL) 789145186Smarius return (NULL); 790145186Smarius if (rle->res != NULL) 791145186Smarius panic("%s: resource entry is busy", __func__); 792145186Smarius if (isdefault) { 793145186Smarius start = rle->start; 794145186Smarius count = ulmax(count, rle->count); 795145186Smarius end = ulmax(rle->end, start + count - 1); 796145186Smarius } 797145186Smarius } 79890618Stmm rm = NULL; 79990618Stmm bh = toffs = tend = 0; 800145186Smarius schild = child; 801145186Smarius while (device_get_parent(schild) != bus) 802172066Smarius schild = device_get_parent(schild); 803145186Smarius slot = sbus_get_slot(schild); 80490618Stmm for (i = 0; i < sc->sc_nrange; i++) { 805145186Smarius if (sc->sc_rd[i].rd_slot != slot || 80690618Stmm start < sc->sc_rd[i].rd_coffset || 80790618Stmm start > sc->sc_rd[i].rd_cend) 80890618Stmm continue; 80990618Stmm /* Disallow cross-range allocations. */ 81090618Stmm if (end > sc->sc_rd[i].rd_cend) 81190618Stmm return (NULL); 81290618Stmm /* We've found the connection to the parent bus */ 81390618Stmm toffs = start - sc->sc_rd[i].rd_coffset; 81490618Stmm tend = end - sc->sc_rd[i].rd_coffset; 81590618Stmm rm = &sc->sc_rd[i].rd_rman; 81690618Stmm bh = sc->sc_rd[i].rd_bushandle; 817159413Smarius break; 81890618Stmm } 819159413Smarius if (rm == NULL) 82090618Stmm return (NULL); 82190618Stmm flags &= ~RF_ACTIVE; 82290618Stmm rv = rman_reserve_resource(rm, toffs, tend, count, flags, 82390618Stmm child); 82490618Stmm if (rv == NULL) 82590618Stmm return (NULL); 826157896Simp rman_set_rid(rv, *rid); 82790618Stmm rman_set_bustag(rv, sc->sc_cbustag); 82890618Stmm rman_set_bushandle(rv, bh + rman_get_start(rv)); 82990618Stmm if (needactivate) { 83090618Stmm if (bus_activate_resource(child, type, *rid, rv)) { 83190618Stmm rman_release_resource(rv); 83290618Stmm return (NULL); 83390618Stmm } 83490618Stmm } 835145186Smarius if (!passthrough) 836145186Smarius rle->res = rv; 837145186Smarius return (rv); 83890618Stmm default: 83990618Stmm return (NULL); 84090618Stmm } 84190618Stmm} 84290618Stmm 84390618Stmmstatic int 84490618Stmmsbus_activate_resource(device_t bus, device_t child, int type, int rid, 84590618Stmm struct resource *r) 84690618Stmm{ 847159413Smarius void *p; 848159413Smarius int error; 84990618Stmm 850108798Stmm if (type == SYS_RES_IRQ) { 851108798Stmm return (BUS_ACTIVATE_RESOURCE(device_get_parent(bus), 852108798Stmm child, type, rid, r)); 853108798Stmm } 854159413Smarius if (type == SYS_RES_MEMORY) { 855159413Smarius /* 856190112Smarius * Need to memory-map the device space, as some drivers 857190112Smarius * depend on the virtual address being set and usable. 858159413Smarius */ 859159413Smarius error = sparc64_bus_mem_map(rman_get_bustag(r), 860159413Smarius rman_get_bushandle(r), rman_get_size(r), 0, 0, &p); 861159413Smarius if (error != 0) 862159413Smarius return (error); 863159413Smarius rman_set_virtual(r, p); 864159413Smarius } 86590618Stmm return (rman_activate_resource(r)); 86690618Stmm} 86790618Stmm 86890618Stmmstatic int 86990618Stmmsbus_deactivate_resource(device_t bus, device_t child, int type, int rid, 87090618Stmm struct resource *r) 87190618Stmm{ 87290618Stmm 873108798Stmm if (type == SYS_RES_IRQ) { 874108798Stmm return (BUS_DEACTIVATE_RESOURCE(device_get_parent(bus), 875108798Stmm child, type, rid, r)); 876108798Stmm } 877159413Smarius if (type == SYS_RES_MEMORY) { 878159413Smarius sparc64_bus_mem_unmap(rman_get_virtual(r), rman_get_size(r)); 879159413Smarius rman_set_virtual(r, NULL); 880159413Smarius } 88190618Stmm return (rman_deactivate_resource(r)); 88290618Stmm} 88390618Stmm 88490618Stmmstatic int 88590618Stmmsbus_release_resource(device_t bus, device_t child, int type, int rid, 88690618Stmm struct resource *r) 88790618Stmm{ 888145186Smarius struct resource_list *rl; 889108798Stmm struct resource_list_entry *rle; 890145186Smarius int error, passthrough; 89190618Stmm 892145186Smarius passthrough = (device_get_parent(child) != bus); 893145186Smarius rl = BUS_GET_RESOURCE_LIST(bus, child); 89490618Stmm if (type == SYS_RES_IRQ) 895145186Smarius return (resource_list_release(rl, bus, child, type, rid, r)); 896145186Smarius if ((rman_get_flags(r) & RF_ACTIVE) != 0) { 897145186Smarius error = bus_deactivate_resource(child, type, rid, r); 898108798Stmm if (error != 0) 899108798Stmm return (error); 90090618Stmm } 901145186Smarius error = rman_release_resource(r); 902145186Smarius if (error != 0 || passthrough) 903108798Stmm return (error); 904145186Smarius rle = resource_list_find(rl, type, rid); 905108798Stmm if (rle == NULL) 906145185Smarius panic("%s: cannot find resource", __func__); 907108798Stmm if (rle->res == NULL) 908145185Smarius panic("%s: resource entry is not busy", __func__); 909108798Stmm rle->res = NULL; 910108798Stmm return (0); 91190618Stmm} 91290618Stmm 913167308Smariusstatic bus_dma_tag_t 914167308Smariussbus_get_dma_tag(device_t bus, device_t child) 915167308Smarius{ 916167308Smarius struct sbus_softc *sc; 917167308Smarius 918167308Smarius sc = device_get_softc(bus); 919167308Smarius return (sc->sc_cdmatag); 920167308Smarius} 921167308Smarius 922152684Smariusstatic const struct ofw_bus_devinfo * 923152684Smariussbus_get_devinfo(device_t bus, device_t child) 924152684Smarius{ 925152684Smarius struct sbus_devinfo *sdi; 926152684Smarius 927152684Smarius sdi = device_get_ivars(child); 928152684Smarius return (&sdi->sdi_obdinfo); 929152684Smarius} 930152684Smarius 93190618Stmm/* 93290618Stmm * Handle an overtemp situation. 93390618Stmm * 93490618Stmm * SPARCs have temperature sensors which generate interrupts 93590618Stmm * if the machine's temperature exceeds a certain threshold. 93690618Stmm * This handles the interrupt and powers off the machine. 93790618Stmm * The same needs to be done to PCI controller drivers. 93890618Stmm */ 939170852Smariusstatic void 94090618Stmmsbus_overtemp(void *arg) 94190618Stmm{ 942172066Smarius static int shutdown; 94390618Stmm 944172066Smarius /* As the interrupt is cleared we may be called multiple times. */ 945172066Smarius if (shutdown != 0) 946172066Smarius return; 947172066Smarius shutdown++; 94890618Stmm printf("DANGER: OVER TEMPERATURE detected\nShutting down NOW.\n"); 94990618Stmm shutdown_nice(RB_POWEROFF); 95090618Stmm} 95190618Stmm 95290618Stmm/* Try to shut down in time in case of power failure. */ 953170852Smariusstatic void 95490618Stmmsbus_pwrfail(void *arg) 95590618Stmm{ 956172066Smarius static int shutdown; 95790618Stmm 958172066Smarius /* As the interrupt is cleared we may be called multiple times. */ 959172066Smarius if (shutdown != 0) 960172066Smarius return; 961172066Smarius shutdown++; 96290618Stmm printf("Power failure detected\nShutting down NOW.\n"); 96390618Stmm shutdown_nice(0); 96490618Stmm} 96590618Stmm 96690618Stmmstatic bus_space_tag_t 96790618Stmmsbus_alloc_bustag(struct sbus_softc *sc) 96890618Stmm{ 96990618Stmm bus_space_tag_t sbt; 97090618Stmm 97190618Stmm sbt = (bus_space_tag_t)malloc(sizeof(struct bus_space_tag), M_DEVBUF, 97290618Stmm M_NOWAIT | M_ZERO); 97390618Stmm if (sbt == NULL) 974145185Smarius panic("%s: out of memory", __func__); 97590618Stmm 976108815Stmm sbt->bst_cookie = sc; 977170852Smarius sbt->bst_parent = rman_get_bustag(sc->sc_sysio_res); 978108815Stmm sbt->bst_type = SBUS_BUS_SPACE; 97990618Stmm return (sbt); 98090618Stmm} 981133589Smarius 982152684Smariusstatic int 983152684Smariussbus_print_res(struct sbus_devinfo *sdi) 984133589Smarius{ 985152684Smarius int rv; 986133589Smarius 987152684Smarius rv = 0; 988152684Smarius rv += resource_list_print_type(&sdi->sdi_rl, "mem", SYS_RES_MEMORY, 989152684Smarius "%#lx"); 990152684Smarius rv += resource_list_print_type(&sdi->sdi_rl, "irq", SYS_RES_IRQ, 991152684Smarius "%ld"); 992152684Smarius return (rv); 993133589Smarius} 994