diff options
Diffstat (limited to 'sys/sparc64/sbus/sbus.c')
| -rw-r--r-- | sys/sparc64/sbus/sbus.c | 938 |
1 files changed, 0 insertions, 938 deletions
diff --git a/sys/sparc64/sbus/sbus.c b/sys/sparc64/sbus/sbus.c deleted file mode 100644 index 7731d97fb471..000000000000 --- a/sys/sparc64/sbus/sbus.c +++ /dev/null @@ -1,938 +0,0 @@ -/*- - * SPDX-License-Identifier: BSD-3-Clause - * - * Copyright (c) 1999-2002 Eduardo Horvath - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * from: NetBSD: sbus.c,v 1.50 2002/06/20 18:26:24 eeh Exp - */ -/*- - * Copyright (c) 2002 by Thomas Moestl <tmm@FreeBSD.org>. - * Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -/* - * SBus support. - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/bus.h> -#include <sys/kernel.h> -#include <sys/malloc.h> -#include <sys/module.h> -#include <sys/pcpu.h> -#include <sys/queue.h> -#include <sys/reboot.h> -#include <sys/rman.h> - -#include <dev/ofw/ofw_bus.h> -#include <dev/ofw/ofw_bus_subr.h> -#include <dev/ofw/openfirm.h> - -#include <machine/bus.h> -#include <machine/bus_common.h> -#include <machine/bus_private.h> -#include <machine/iommureg.h> -#include <machine/iommuvar.h> -#include <machine/resource.h> - -#include <sparc64/sbus/ofw_sbus.h> -#include <sparc64/sbus/sbusreg.h> -#include <sparc64/sbus/sbusvar.h> - -struct sbus_devinfo { - int sdi_burstsz; - int sdi_clockfreq; - int sdi_slot; - - struct ofw_bus_devinfo sdi_obdinfo; - struct resource_list sdi_rl; -}; - -/* Range descriptor, allocated for each sc_range. */ -struct sbus_rd { - bus_addr_t rd_poffset; - bus_addr_t rd_pend; - int rd_slot; - bus_addr_t rd_coffset; - bus_addr_t rd_cend; - struct rman rd_rman; - bus_space_handle_t rd_bushandle; - struct resource *rd_res; -}; - -struct sbus_softc { - device_t sc_dev; - bus_dma_tag_t sc_cdmatag; - int sc_clockfreq; /* clock frequency (in Hz) */ - int sc_nrange; - struct sbus_rd *sc_rd; - int sc_burst; /* burst transfer sizes supp. */ - - struct resource *sc_sysio_res; - int sc_ign; /* IGN for this sysio */ - struct iommu_state sc_is; /* IOMMU state (iommuvar.h) */ - - struct resource *sc_ot_ires; - void *sc_ot_ihand; - struct resource *sc_pf_ires; - void *sc_pf_ihand; -}; - -#define SYSIO_READ8(sc, off) \ - bus_read_8((sc)->sc_sysio_res, (off)) -#define SYSIO_WRITE8(sc, off, v) \ - bus_write_8((sc)->sc_sysio_res, (off), (v)) - -static device_probe_t sbus_probe; -static device_attach_t sbus_attach; -static bus_print_child_t sbus_print_child; -static bus_probe_nomatch_t sbus_probe_nomatch; -static bus_read_ivar_t sbus_read_ivar; -static bus_get_resource_list_t sbus_get_resource_list; -static bus_setup_intr_t sbus_setup_intr; -static bus_alloc_resource_t sbus_alloc_resource; -static bus_activate_resource_t sbus_activate_resource; -static bus_adjust_resource_t sbus_adjust_resource; -static bus_release_resource_t sbus_release_resource; -static bus_get_dma_tag_t sbus_get_dma_tag; -static ofw_bus_get_devinfo_t sbus_get_devinfo; - -static int sbus_inlist(const char *, const char *const *); -static struct sbus_devinfo * sbus_setup_dinfo(device_t, struct sbus_softc *, - phandle_t); -static void sbus_destroy_dinfo(struct sbus_devinfo *); -static void sbus_intr_enable(void *); -static void sbus_intr_disable(void *); -static void sbus_intr_assign(void *); -static void sbus_intr_clear(void *); -static int sbus_find_intrmap(struct sbus_softc *, u_int, bus_addr_t *, - bus_addr_t *); -static driver_intr_t sbus_overtemp; -static driver_intr_t sbus_pwrfail; -static int sbus_print_res(struct sbus_devinfo *); - -static device_method_t sbus_methods[] = { - /* Device interface */ - DEVMETHOD(device_probe, sbus_probe), - DEVMETHOD(device_attach, sbus_attach), - DEVMETHOD(device_shutdown, bus_generic_shutdown), - DEVMETHOD(device_suspend, bus_generic_suspend), - DEVMETHOD(device_resume, bus_generic_resume), - - /* Bus interface */ - DEVMETHOD(bus_print_child, sbus_print_child), - DEVMETHOD(bus_probe_nomatch, sbus_probe_nomatch), - DEVMETHOD(bus_read_ivar, sbus_read_ivar), - DEVMETHOD(bus_alloc_resource, sbus_alloc_resource), - DEVMETHOD(bus_activate_resource, sbus_activate_resource), - DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), - DEVMETHOD(bus_adjust_resource, sbus_adjust_resource), - DEVMETHOD(bus_release_resource, sbus_release_resource), - DEVMETHOD(bus_setup_intr, sbus_setup_intr), - DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), - DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), - DEVMETHOD(bus_get_resource_list, sbus_get_resource_list), - DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str), - DEVMETHOD(bus_get_dma_tag, sbus_get_dma_tag), - - /* ofw_bus interface */ - DEVMETHOD(ofw_bus_get_devinfo, sbus_get_devinfo), - DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), - DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), - DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), - DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), - DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), - - DEVMETHOD_END -}; - -static driver_t sbus_driver = { - "sbus", - sbus_methods, - sizeof(struct sbus_softc), -}; - -static devclass_t sbus_devclass; - -EARLY_DRIVER_MODULE(sbus, nexus, sbus_driver, sbus_devclass, NULL, NULL, - BUS_PASS_BUS); -MODULE_DEPEND(sbus, nexus, 1, 1, 1); -MODULE_VERSION(sbus, 1); - -#define OFW_SBUS_TYPE "sbus" -#define OFW_SBUS_NAME "sbus" - -static const struct intr_controller sbus_ic = { - sbus_intr_enable, - sbus_intr_disable, - sbus_intr_assign, - sbus_intr_clear -}; - -struct sbus_icarg { - struct sbus_softc *sica_sc; - bus_addr_t sica_map; - bus_addr_t sica_clr; -}; - -static const char *const sbus_order_first[] = { - "auxio", - "dma", - NULL -}; - -static int -sbus_inlist(const char *name, const char *const *list) -{ - int i; - - if (name == NULL) - return (0); - for (i = 0; list[i] != NULL; i++) { - if (strcmp(name, list[i]) == 0) - return (1); - } - return (0); -} - -static int -sbus_probe(device_t dev) -{ - const char *t; - - t = ofw_bus_get_type(dev); - if (((t == NULL || strcmp(t, OFW_SBUS_TYPE) != 0)) && - strcmp(ofw_bus_get_name(dev), OFW_SBUS_NAME) != 0) - return (ENXIO); - device_set_desc(dev, "U2S UPA-SBus bridge"); - return (0); -} - -static int -sbus_attach(device_t dev) -{ - struct sbus_softc *sc; - struct sbus_devinfo *sdi; - struct sbus_icarg *sica; - struct sbus_ranges *range; - struct resource *res; - struct resource_list *rl; - device_t cdev; - bus_addr_t intrclr, intrmap, phys; - bus_size_t size; - u_long vec; - phandle_t child, node; - uint32_t prop; - int i, j; - - sc = device_get_softc(dev); - sc->sc_dev = dev; - node = ofw_bus_get_node(dev); - - i = 0; - sc->sc_sysio_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i, - RF_ACTIVE); - if (sc->sc_sysio_res == NULL) - panic("%s: cannot allocate device memory", __func__); - - if (OF_getprop(node, "interrupts", &prop, sizeof(prop)) == -1) - panic("%s: cannot get IGN", __func__); - sc->sc_ign = INTIGN(prop); - - /* - * Record clock frequency for synchronous SCSI. - * IS THIS THE CORRECT DEFAULT?? - */ - if (OF_getprop(node, "clock-frequency", &prop, sizeof(prop)) == -1) - prop = 25000000; - sc->sc_clockfreq = prop; - prop /= 1000; - device_printf(dev, "clock %d.%03d MHz\n", prop / 1000, prop % 1000); - - /* - * Collect address translations from the OBP. - */ - if ((sc->sc_nrange = OF_getprop_alloc_multi(node, "ranges", - sizeof(*range), (void **)&range)) == -1) { - panic("%s: error getting ranges property", __func__); - } - sc->sc_rd = malloc(sizeof(*sc->sc_rd) * sc->sc_nrange, M_DEVBUF, - M_NOWAIT | M_ZERO); - if (sc->sc_rd == NULL) - panic("%s: cannot allocate rmans", __func__); - /* - * Preallocate all space that the SBus bridge decodes, so that nothing - * else gets in the way; set up rmans etc. - */ - rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev); - for (i = 0; i < sc->sc_nrange; i++) { - phys = range[i].poffset | ((bus_addr_t)range[i].pspace << 32); - size = range[i].size; - sc->sc_rd[i].rd_slot = range[i].cspace; - sc->sc_rd[i].rd_coffset = range[i].coffset; - sc->sc_rd[i].rd_cend = sc->sc_rd[i].rd_coffset + size; - j = resource_list_add_next(rl, SYS_RES_MEMORY, phys, - phys + size - 1, size); - if ((res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &j, - RF_ACTIVE)) == NULL) - panic("%s: cannot allocate decoded range", __func__); - sc->sc_rd[i].rd_bushandle = rman_get_bushandle(res); - sc->sc_rd[i].rd_rman.rm_type = RMAN_ARRAY; - sc->sc_rd[i].rd_rman.rm_descr = "SBus Device Memory"; - if (rman_init(&sc->sc_rd[i].rd_rman) != 0 || - rman_manage_region(&sc->sc_rd[i].rd_rman, 0, size) != 0) - panic("%s: failed to set up memory rman", __func__); - sc->sc_rd[i].rd_poffset = phys; - sc->sc_rd[i].rd_pend = phys + size; - sc->sc_rd[i].rd_res = res; - } - OF_prop_free(range); - - /* - * Get the SBus burst transfer size if burst transfers are supported. - */ - if (OF_getprop(node, "up-burst-sizes", &sc->sc_burst, - sizeof(sc->sc_burst)) == -1 || sc->sc_burst == 0) - sc->sc_burst = - (SBUS_BURST64_DEF << SBUS_BURST64_SHIFT) | SBUS_BURST_DEF; - - /* initialise the IOMMU */ - - /* punch in our copies */ - sc->sc_is.is_pmaxaddr = IOMMU_MAXADDR(SBUS_IOMMU_BITS); - sc->sc_is.is_bustag = rman_get_bustag(sc->sc_sysio_res); - sc->sc_is.is_bushandle = rman_get_bushandle(sc->sc_sysio_res); - sc->sc_is.is_iommu = SBR_IOMMU; - sc->sc_is.is_dtag = SBR_IOMMU_TLB_TAG_DIAG; - sc->sc_is.is_ddram = SBR_IOMMU_TLB_DATA_DIAG; - sc->sc_is.is_dqueue = SBR_IOMMU_QUEUE_DIAG; - sc->sc_is.is_dva = SBR_IOMMU_SVADIAG; - sc->sc_is.is_dtcmp = 0; - sc->sc_is.is_sb[0] = SBR_STRBUF; - sc->sc_is.is_sb[1] = 0; - - /* - * Note: the SBus IOMMU ignores the high bits of an address, so a NULL - * DMA pointer will be translated by the first page of the IOTSB. - * To detect bugs we'll allocate and ignore the first entry. - */ - iommu_init(device_get_nameunit(dev), &sc->sc_is, 3, -1, 1); - - /* Create the DMA tag. */ - if (bus_dma_tag_create(bus_get_dma_tag(dev), 8, 0, - sc->sc_is.is_pmaxaddr, ~0, NULL, NULL, sc->sc_is.is_pmaxaddr, - 0xff, 0xffffffff, 0, NULL, NULL, &sc->sc_cdmatag) != 0) - panic("%s: bus_dma_tag_create failed", __func__); - /* Customize the tag. */ - sc->sc_cdmatag->dt_cookie = &sc->sc_is; - sc->sc_cdmatag->dt_mt = &iommu_dma_methods; - - /* - * Hunt through all the interrupt mapping regs and register our - * interrupt controller for the corresponding interrupt vectors. - * We do this early in order to be able to catch stray interrupts. - */ - for (i = 0; i <= SBUS_MAX_INO; i++) { - if (sbus_find_intrmap(sc, i, &intrmap, &intrclr) == 0) - continue; - sica = malloc(sizeof(*sica), M_DEVBUF, M_NOWAIT); - if (sica == NULL) - panic("%s: could not allocate interrupt controller " - "argument", __func__); - sica->sica_sc = sc; - sica->sica_map = intrmap; - sica->sica_clr = intrclr; -#ifdef SBUS_DEBUG - device_printf(dev, - "intr map (INO %d, %s) %#lx: %#lx, clr: %#lx\n", - i, (i & INTMAP_OBIO_MASK) == 0 ? "SBus slot" : "OBIO", - (u_long)intrmap, (u_long)SYSIO_READ8(sc, intrmap), - (u_long)intrclr); -#endif - j = intr_controller_register(INTMAP_VEC(sc->sc_ign, i), - &sbus_ic, sica); - if (j != 0) - device_printf(dev, "could not register interrupt " - "controller for INO %d (%d)\n", i, j); - } - - /* Enable the over-temperature and power-fail interrupts. */ - i = 4; - sc->sc_ot_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i, - RF_ACTIVE); - if (sc->sc_ot_ires == NULL || - INTIGN(vec = rman_get_start(sc->sc_ot_ires)) != sc->sc_ign || - INTVEC(SYSIO_READ8(sc, SBR_THERM_INT_MAP)) != vec || - intr_vectors[vec].iv_ic != &sbus_ic || - bus_setup_intr(dev, sc->sc_ot_ires, INTR_TYPE_MISC | INTR_BRIDGE | INTR_MPSAFE, - NULL, sbus_overtemp, sc, &sc->sc_ot_ihand) != 0) - panic("%s: failed to set up temperature interrupt", __func__); - i = 3; - sc->sc_pf_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i, - RF_ACTIVE); - if (sc->sc_pf_ires == NULL || - INTIGN(vec = rman_get_start(sc->sc_pf_ires)) != sc->sc_ign || - INTVEC(SYSIO_READ8(sc, SBR_POWER_INT_MAP)) != vec || - intr_vectors[vec].iv_ic != &sbus_ic || - bus_setup_intr(dev, sc->sc_pf_ires, INTR_TYPE_MISC | INTR_BRIDGE | INTR_MPSAFE, - NULL, sbus_pwrfail, sc, &sc->sc_pf_ihand) != 0) - panic("%s: failed to set up power fail interrupt", __func__); - - /* Initialize the counter-timer. */ - sparc64_counter_init(device_get_nameunit(dev), - rman_get_bustag(sc->sc_sysio_res), - rman_get_bushandle(sc->sc_sysio_res), SBR_TC0); - - /* - * Loop through ROM children, fixing any relative addresses - * and then configuring each device. - */ - for (child = OF_child(node); child != 0; child = OF_peer(child)) { - if ((sdi = sbus_setup_dinfo(dev, sc, child)) == NULL) - continue; - /* - * For devices where there are variants that are actually - * split into two SBus devices (as opposed to the first - * half of the device being a SBus device and the second - * half hanging off of the first one) like 'auxio' and - * 'SUNW,fdtwo' or 'dma' and 'esp' probe the SBus device - * which is a prerequisite to the driver attaching to the - * second one with a lower order. Saves us from dealing - * with different probe orders in the respective device - * drivers which generally is more hackish. - */ - cdev = device_add_child_ordered(dev, (OF_child(child) == 0 && - sbus_inlist(sdi->sdi_obdinfo.obd_name, sbus_order_first)) ? - SBUS_ORDER_FIRST : SBUS_ORDER_NORMAL, NULL, -1); - if (cdev == NULL) { - device_printf(dev, - "<%s>: device_add_child_ordered failed\n", - sdi->sdi_obdinfo.obd_name); - sbus_destroy_dinfo(sdi); - continue; - } - device_set_ivars(cdev, sdi); - } - return (bus_generic_attach(dev)); -} - -static struct sbus_devinfo * -sbus_setup_dinfo(device_t dev, struct sbus_softc *sc, phandle_t node) -{ - struct sbus_devinfo *sdi; - struct sbus_regs *reg; - u_int32_t base, iv, *intr; - int i, nreg, nintr, slot, rslot; - - sdi = malloc(sizeof(*sdi), M_DEVBUF, M_ZERO | M_WAITOK); - if (ofw_bus_gen_setup_devinfo(&sdi->sdi_obdinfo, node) != 0) { - free(sdi, M_DEVBUF); - return (NULL); - } - resource_list_init(&sdi->sdi_rl); - slot = -1; - nreg = OF_getprop_alloc_multi(node, "reg", sizeof(*reg), (void **)®); - if (nreg == -1) { - if (sdi->sdi_obdinfo.obd_type == NULL || - strcmp(sdi->sdi_obdinfo.obd_type, "hierarchical") != 0) { - device_printf(dev, "<%s>: incomplete\n", - sdi->sdi_obdinfo.obd_name); - goto fail; - } - } else { - for (i = 0; i < nreg; i++) { - base = reg[i].sbr_offset; - if (SBUS_ABS(base)) { - rslot = SBUS_ABS_TO_SLOT(base); - base = SBUS_ABS_TO_OFFSET(base); - } else - rslot = reg[i].sbr_slot; - if (slot != -1 && slot != rslot) { - device_printf(dev, "<%s>: multiple slots\n", - sdi->sdi_obdinfo.obd_name); - OF_prop_free(reg); - goto fail; - } - slot = rslot; - - resource_list_add(&sdi->sdi_rl, SYS_RES_MEMORY, i, - base, base + reg[i].sbr_size, reg[i].sbr_size); - } - OF_prop_free(reg); - } - sdi->sdi_slot = slot; - - /* - * The `interrupts' property contains the SBus interrupt level. - */ - nintr = OF_getprop_alloc_multi(node, "interrupts", sizeof(*intr), - (void **)&intr); - if (nintr != -1) { - for (i = 0; i < nintr; i++) { - iv = intr[i]; - /* - * SBus card devices need the slot number encoded into - * the vector as this is generally not done. - */ - if ((iv & INTMAP_OBIO_MASK) == 0) - iv |= slot << 3; - iv = INTMAP_VEC(sc->sc_ign, iv); - resource_list_add(&sdi->sdi_rl, SYS_RES_IRQ, i, - iv, iv, 1); - } - OF_prop_free(intr); - } - if (OF_getprop(node, "burst-sizes", &sdi->sdi_burstsz, - sizeof(sdi->sdi_burstsz)) == -1) - sdi->sdi_burstsz = sc->sc_burst; - else - sdi->sdi_burstsz &= sc->sc_burst; - if (OF_getprop(node, "clock-frequency", &sdi->sdi_clockfreq, - sizeof(sdi->sdi_clockfreq)) == -1) - sdi->sdi_clockfreq = sc->sc_clockfreq; - - return (sdi); - -fail: - sbus_destroy_dinfo(sdi); - return (NULL); -} - -static void -sbus_destroy_dinfo(struct sbus_devinfo *dinfo) -{ - - resource_list_free(&dinfo->sdi_rl); - ofw_bus_gen_destroy_devinfo(&dinfo->sdi_obdinfo); - free(dinfo, M_DEVBUF); -} - -static int -sbus_print_child(device_t dev, device_t child) -{ - int rv; - - rv = bus_print_child_header(dev, child); - rv += sbus_print_res(device_get_ivars(child)); - rv += bus_print_child_footer(dev, child); - return (rv); -} - -static void -sbus_probe_nomatch(device_t dev, device_t child) -{ - const char *type; - - device_printf(dev, "<%s>", ofw_bus_get_name(child)); - sbus_print_res(device_get_ivars(child)); - type = ofw_bus_get_type(child); - printf(" type %s (no driver attached)\n", - type != NULL ? type : "unknown"); -} - -static int -sbus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) -{ - struct sbus_softc *sc; - struct sbus_devinfo *dinfo; - - sc = device_get_softc(dev); - if ((dinfo = device_get_ivars(child)) == NULL) - return (ENOENT); - switch (which) { - case SBUS_IVAR_BURSTSZ: - *result = dinfo->sdi_burstsz; - break; - case SBUS_IVAR_CLOCKFREQ: - *result = dinfo->sdi_clockfreq; - break; - case SBUS_IVAR_IGN: - *result = sc->sc_ign; - break; - case SBUS_IVAR_SLOT: - *result = dinfo->sdi_slot; - break; - default: - return (ENOENT); - } - return (0); -} - -static struct resource_list * -sbus_get_resource_list(device_t dev, device_t child) -{ - struct sbus_devinfo *sdi; - - sdi = device_get_ivars(child); - return (&sdi->sdi_rl); -} - -static void -sbus_intr_enable(void *arg) -{ - struct intr_vector *iv = arg; - struct sbus_icarg *sica = iv->iv_icarg; - - SYSIO_WRITE8(sica->sica_sc, sica->sica_map, - INTMAP_ENABLE(iv->iv_vec, iv->iv_mid)); -} - -static void -sbus_intr_disable(void *arg) -{ - struct intr_vector *iv = arg; - struct sbus_icarg *sica = iv->iv_icarg; - - SYSIO_WRITE8(sica->sica_sc, sica->sica_map, iv->iv_vec); -} - -static void -sbus_intr_assign(void *arg) -{ - struct intr_vector *iv = arg; - struct sbus_icarg *sica = iv->iv_icarg; - - SYSIO_WRITE8(sica->sica_sc, sica->sica_map, INTMAP_TID( - SYSIO_READ8(sica->sica_sc, sica->sica_map), iv->iv_mid)); -} - -static void -sbus_intr_clear(void *arg) -{ - struct intr_vector *iv = arg; - struct sbus_icarg *sica = iv->iv_icarg; - - SYSIO_WRITE8(sica->sica_sc, sica->sica_clr, INTCLR_IDLE); -} - -static int -sbus_find_intrmap(struct sbus_softc *sc, u_int ino, bus_addr_t *intrmapptr, - bus_addr_t *intrclrptr) -{ - bus_addr_t intrclr, intrmap; - int i; - - if (ino > SBUS_MAX_INO) { - device_printf(sc->sc_dev, "out of range INO %d requested\n", - ino); - return (0); - } - - if ((ino & INTMAP_OBIO_MASK) == 0) { - intrmap = SBR_SLOT0_INT_MAP + INTSLOT(ino) * 8; - intrclr = SBR_SLOT0_INT_CLR + - (INTSLOT(ino) * 8 * 8) + (INTPRI(ino) * 8); - } else { - intrclr = 0; - for (i = 0, intrmap = SBR_SCSI_INT_MAP; - intrmap <= SBR_RESERVED_INT_MAP; intrmap += 8, i++) { - if (INTVEC(SYSIO_READ8(sc, intrmap)) == - INTMAP_VEC(sc->sc_ign, ino)) { - intrclr = SBR_SCSI_INT_CLR + i * 8; - break; - } - } - if (intrclr == 0) - return (0); - } - if (intrmapptr != NULL) - *intrmapptr = intrmap; - if (intrclrptr != NULL) - *intrclrptr = intrclr; - return (1); -} - -static int -sbus_setup_intr(device_t dev, device_t child, struct resource *ires, int flags, - driver_filter_t *filt, driver_intr_t *intr, void *arg, void **cookiep) -{ - struct sbus_softc *sc; - u_long vec; - - sc = device_get_softc(dev); - /* - * Make sure the vector is fully specified and we registered - * our interrupt controller for it. - */ - vec = rman_get_start(ires); - if (INTIGN(vec) != sc->sc_ign || intr_vectors[vec].iv_ic != &sbus_ic) { - device_printf(dev, "invalid interrupt vector 0x%lx\n", vec); - return (EINVAL); - } - return (bus_generic_setup_intr(dev, child, ires, flags, filt, intr, - arg, cookiep)); -} - -static struct resource * -sbus_alloc_resource(device_t bus, device_t child, int type, int *rid, - rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) -{ - struct sbus_softc *sc; - struct rman *rm; - struct resource *rv; - struct resource_list *rl; - struct resource_list_entry *rle; - device_t schild; - bus_addr_t toffs; - bus_size_t tend; - int i, slot; - int isdefault, passthrough; - - isdefault = RMAN_IS_DEFAULT_RANGE(start, end); - passthrough = (device_get_parent(child) != bus); - rle = NULL; - sc = device_get_softc(bus); - rl = BUS_GET_RESOURCE_LIST(bus, child); - switch (type) { - case SYS_RES_IRQ: - return (resource_list_alloc(rl, bus, child, type, rid, start, - end, count, flags)); - case SYS_RES_MEMORY: - if (!passthrough) { - rle = resource_list_find(rl, type, *rid); - if (rle == NULL) - return (NULL); - if (rle->res != NULL) - panic("%s: resource entry is busy", __func__); - if (isdefault) { - start = rle->start; - count = ulmax(count, rle->count); - end = ulmax(rle->end, start + count - 1); - } - } - rm = NULL; - schild = child; - while (device_get_parent(schild) != bus) - schild = device_get_parent(schild); - slot = sbus_get_slot(schild); - for (i = 0; i < sc->sc_nrange; i++) { - if (sc->sc_rd[i].rd_slot != slot || - start < sc->sc_rd[i].rd_coffset || - start > sc->sc_rd[i].rd_cend) - continue; - /* Disallow cross-range allocations. */ - if (end > sc->sc_rd[i].rd_cend) - return (NULL); - /* We've found the connection to the parent bus */ - toffs = start - sc->sc_rd[i].rd_coffset; - tend = end - sc->sc_rd[i].rd_coffset; - rm = &sc->sc_rd[i].rd_rman; - break; - } - if (rm == NULL) - return (NULL); - - rv = rman_reserve_resource(rm, toffs, tend, count, flags & - ~RF_ACTIVE, child); - if (rv == NULL) - return (NULL); - rman_set_rid(rv, *rid); - - if ((flags & RF_ACTIVE) != 0 && bus_activate_resource(child, - type, *rid, rv)) { - rman_release_resource(rv); - return (NULL); - } - if (!passthrough) - rle->res = rv; - return (rv); - default: - return (NULL); - } -} - -static int -sbus_activate_resource(device_t bus, device_t child, int type, int rid, - struct resource *r) -{ - struct sbus_softc *sc; - struct bus_space_tag *tag; - int i; - - switch (type) { - case SYS_RES_IRQ: - return (bus_generic_activate_resource(bus, child, type, rid, - r)); - case SYS_RES_MEMORY: - sc = device_get_softc(bus); - for (i = 0; i < sc->sc_nrange; i++) { - if (rman_is_region_manager(r, - &sc->sc_rd[i].rd_rman) != 0) { - tag = sparc64_alloc_bus_tag(r, SBUS_BUS_SPACE); - if (tag == NULL) - return (ENOMEM); - rman_set_bustag(r, tag); - rman_set_bushandle(r, - sc->sc_rd[i].rd_bushandle + - rman_get_start(r)); - return (rman_activate_resource(r)); - } - } - /* FALLTHROUGH */ - default: - return (EINVAL); - } -} - -static int -sbus_adjust_resource(device_t bus, device_t child, int type, - struct resource *r, rman_res_t start, rman_res_t end) -{ - struct sbus_softc *sc; - int i; - - if (type == SYS_RES_MEMORY) { - sc = device_get_softc(bus); - for (i = 0; i < sc->sc_nrange; i++) - if (rman_is_region_manager(r, - &sc->sc_rd[i].rd_rman) != 0) - return (rman_adjust_resource(r, start, end)); - return (EINVAL); - } - return (bus_generic_adjust_resource(bus, child, type, r, start, end)); -} - -static int -sbus_release_resource(device_t bus, device_t child, int type, int rid, - struct resource *r) -{ - struct resource_list *rl; - struct resource_list_entry *rle; - int error, passthrough; - - passthrough = (device_get_parent(child) != bus); - rl = BUS_GET_RESOURCE_LIST(bus, child); - if (type == SYS_RES_MEMORY) { - if ((rman_get_flags(r) & RF_ACTIVE) != 0) { - error = bus_deactivate_resource(child, type, rid, r); - if (error) - return (error); - } - error = rman_release_resource(r); - if (error != 0) - return (error); - if (!passthrough) { - rle = resource_list_find(rl, type, rid); - KASSERT(rle != NULL, - ("%s: resource entry not found!", __func__)); - KASSERT(rle->res != NULL, - ("%s: resource entry is not busy", __func__)); - rle->res = NULL; - } - return (0); - } - return (resource_list_release(rl, bus, child, type, rid, r)); -} - -static bus_dma_tag_t -sbus_get_dma_tag(device_t bus, device_t child) -{ - struct sbus_softc *sc; - - sc = device_get_softc(bus); - return (sc->sc_cdmatag); -} - -static const struct ofw_bus_devinfo * -sbus_get_devinfo(device_t bus, device_t child) -{ - struct sbus_devinfo *sdi; - - sdi = device_get_ivars(child); - return (&sdi->sdi_obdinfo); -} - -/* - * Handle an overtemp situation. - * - * SPARCs have temperature sensors which generate interrupts - * if the machine's temperature exceeds a certain threshold. - * This handles the interrupt and powers off the machine. - * The same needs to be done to PCI controller drivers. - */ -static void -sbus_overtemp(void *arg __unused) -{ - static int shutdown; - - /* As the interrupt is cleared we may be called multiple times. */ - if (shutdown != 0) - return; - shutdown++; - printf("DANGER: OVER TEMPERATURE detected\nShutting down NOW.\n"); - shutdown_nice(RB_POWEROFF); -} - -/* Try to shut down in time in case of power failure. */ -static void -sbus_pwrfail(void *arg __unused) -{ - static int shutdown; - - /* As the interrupt is cleared we may be called multiple times. */ - if (shutdown != 0) - return; - shutdown++; - printf("Power failure detected\nShutting down NOW.\n"); - shutdown_nice(RB_POWEROFF); -} - -static int -sbus_print_res(struct sbus_devinfo *sdi) -{ - int rv; - - rv = 0; - rv += resource_list_print_type(&sdi->sdi_rl, "mem", SYS_RES_MEMORY, - "%#jx"); - rv += resource_list_print_type(&sdi->sdi_rl, "irq", SYS_RES_IRQ, - "%jd"); - return (rv); -} |