/*- * Copyright (c) 2015 Landon Fuller * 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, * without modification. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any * redistribution must be conditioned upon including a substantially * similar Disclaimer requirement for further binary redistribution. * * NO WARRANTY * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES. */ #include __FBSDID("$FreeBSD$"); /* * Abstract BHND Bridge Device Driver * * Provides generic support for bridging from a parent bus (such as PCI) to * a BHND-compatible bus (e.g. bcma or siba). */ #include #include #include #include #include #include #include #include #include #include #include #include #include "bhnd_chipc_if.h" #include "bhnd_nvram_if.h" #include "bhndbvar.h" #include "bhndb_bus_if.h" #include "bhndb_hwdata.h" #include "bhndb_private.h" /* Debugging flags */ static u_long bhndb_debug = 0; TUNABLE_ULONG("hw.bhndb.debug", &bhndb_debug); enum { BHNDB_DEBUG_PRIO = 1 << 0, }; #define BHNDB_DEBUG(_type) (BHNDB_DEBUG_ ## _type & bhndb_debug) static bool bhndb_hw_matches(device_t *devlist, int num_devs, const struct bhndb_hw *hw); static int bhndb_initialize_region_cfg( struct bhndb_softc *sc, device_t *devs, int ndevs, const struct bhndb_hw_priority *table, struct bhndb_resources *r); static int bhndb_find_hwspec(struct bhndb_softc *sc, device_t *devs, int ndevs, const struct bhndb_hw **hw); static int bhndb_read_chipid(struct bhndb_softc *sc, const struct bhndb_hwcfg *cfg, struct bhnd_chipid *result); bhndb_addrspace bhndb_get_addrspace(struct bhndb_softc *sc, device_t child); static struct rman *bhndb_get_rman(struct bhndb_softc *sc, device_t child, int type); static int bhndb_init_child_resource(struct resource *r, struct resource *parent, bhnd_size_t offset, bhnd_size_t size); static int bhndb_activate_static_region( struct bhndb_softc *sc, struct bhndb_region *region, device_t child, int type, int rid, struct resource *r); static int bhndb_try_activate_resource( struct bhndb_softc *sc, device_t child, int type, int rid, struct resource *r, bool *indirect); /** * Default bhndb(4) implementation of DEVICE_PROBE(). * * This function provides the default bhndb implementation of DEVICE_PROBE(), * and is compatible with bhndb(4) bridges attached via bhndb_attach_bridge(). */ int bhndb_generic_probe(device_t dev) { return (BUS_PROBE_NOWILDCARD); } static void bhndb_probe_nomatch(device_t dev, device_t child) { const char *name; name = device_get_name(child); if (name == NULL) name = "unknown device"; device_printf(dev, "<%s> (no driver attached)\n", name); } static int bhndb_print_child(device_t dev, device_t child) { struct bhndb_softc *sc; struct resource_list *rl; int retval = 0; sc = device_get_softc(dev); retval += bus_print_child_header(dev, child); rl = BUS_GET_RESOURCE_LIST(dev, child); if (rl != NULL) { retval += resource_list_print_type(rl, "mem", SYS_RES_MEMORY, "%#jx"); retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%jd"); } retval += bus_print_child_domain(dev, child); retval += bus_print_child_footer(dev, child); return (retval); } static int bhndb_child_pnpinfo_str(device_t bus, device_t child, char *buf, size_t buflen) { *buf = '\0'; return (0); } static int bhndb_child_location_str(device_t dev, device_t child, char *buf, size_t buflen) { struct bhndb_softc *sc; sc = device_get_softc(dev); snprintf(buf, buflen, "base=0x%llx", (unsigned long long) sc->chipid.enum_addr); return (0); } /** * Return true if @p devlist matches the @p hw specification. * * @param devlist A device table to match against. * @param num_devs The number of devices in @p devlist. * @param hw The hardware description to be matched against. */ static bool bhndb_hw_matches(device_t *devlist, int num_devs, const struct bhndb_hw *hw) { for (u_int i = 0; i < hw->num_hw_reqs; i++) { const struct bhnd_core_match *match; bool found; match = &hw->hw_reqs[i]; found = false; for (int d = 0; d < num_devs; d++) { if (!bhnd_device_matches(devlist[d], match)) continue; found = true; break; } if (!found) return (false); } return (true); } /** * Initialize the region maps and priority configuration in @p r using * the provided priority @p table and the set of devices attached to * the bridged @p bus_dev . * * @param sc The bhndb device state. * @param devs All devices enumerated on the bridged bhnd bus. * @param ndevs The length of @p devs. * @param table Hardware priority table to be used to determine the relative * priorities of per-core port resources. * @param r The resource state to be configured. */ static int bhndb_initialize_region_cfg(struct bhndb_softc *sc, device_t *devs, int ndevs, const struct bhndb_hw_priority *table, struct bhndb_resources *r) { const struct bhndb_hw_priority *hp; bhnd_addr_t addr; bhnd_size_t size; size_t prio_low, prio_default, prio_high; int error; /* The number of port regions per priority band that must be accessible * via dynamic register windows */ prio_low = 0; prio_default = 0; prio_high = 0; /* * Register bridge regions covering all statically mapped ports. */ for (int i = 0; i < ndevs; i++) { const struct bhndb_regwin *regw; device_t child; child = devs[i]; for (regw = r->cfg->register_windows; regw->win_type != BHNDB_REGWIN_T_INVALID; regw++) { /* Only core windows are supported */ if (regw->win_type != BHNDB_REGWIN_T_CORE) continue; /* Skip non-applicable register windows. */ if (!bhndb_regwin_matches_device(regw, child)) continue; /* Fetch the base address of the mapped port. */ error = bhnd_get_region_addr(child, regw->d.core.port_type, regw->d.core.port, regw->d.core.region, &addr, &size); if (error) return (error); /* * Always defer to the register window's size. * * If the port size is smaller than the window size, * this ensures that we fully utilize register windows * larger than the referenced port. * * If the port size is larger than the window size, this * ensures that we do not directly map the allocations * within the region to a too-small window. */ size = regw->win_size; /* * Add to the bus region list. * * The window priority for a statically mapped * region is always HIGH. */ error = bhndb_add_resource_region(r, addr, size, BHNDB_PRIORITY_HIGH, regw); if (error) return (error); } } /* * Perform priority accounting and register bridge regions for all * ports defined in the priority table */ for (int i = 0; i < ndevs; i++) { struct bhndb_region *region; device_t child; child = devs[i]; /* * Skip priority accounting for cores that ... */ /* ... do not require bridge resources */ if (bhnd_is_hw_disabled(child) || !device_is_enabled(child)) continue; /* ... do not have a priority table entry */ hp = bhndb_hw_priority_find_device(table, child); if (hp == NULL) continue; /* ... are explicitly disabled in the priority table. */ if (hp->priority == BHNDB_PRIORITY_NONE) continue; /* Determine the number of dynamic windows required and * register their bus_region entries. */ for (u_int i = 0; i < hp->num_ports; i++) { const struct bhndb_port_priority *pp; pp = &hp->ports[i]; /* Skip ports not defined on this device */ if (!bhnd_is_region_valid(child, pp->type, pp->port, pp->region)) { continue; } /* Fetch the address+size of the mapped port. */ error = bhnd_get_region_addr(child, pp->type, pp->port, pp->region, &addr, &size); if (error) return (error); /* Skip ports with an existing static mapping */ region = bhndb_find_resource_region(r, addr, size); if (region != NULL && region->static_regwin != NULL) continue; /* Define a dynamic region for this port */ error = bhndb_add_resource_region(r, addr, size, pp->priority, NULL); if (error) return (error); /* Update port mapping counts */ switch (pp->priority) { case BHNDB_PRIORITY_NONE: break; case BHNDB_PRIORITY_LOW: prio_low++; break; case BHNDB_PRIORITY_DEFAULT: prio_default++; break; case BHNDB_PRIORITY_HIGH: prio_high++; break; } } } /* Determine the minimum priority at which we'll allocate direct * register windows from our dynamic pool */ size_t prio_total = prio_low + prio_default + prio_high; if (prio_total <= r->dwa_count) { /* low+default+high priority regions get windows */ r->min_prio = BHNDB_PRIORITY_LOW; } else if (prio_default + prio_high <= r->dwa_count) { /* default+high priority regions get windows */ r->min_prio = BHNDB_PRIORITY_DEFAULT; } else { /* high priority regions get windows */ r->min_prio = BHNDB_PRIORITY_HIGH; } if (BHNDB_DEBUG(PRIO)) { struct bhndb_region *region; const char *direct_msg, *type_msg; bhndb_priority_t prio, prio_min; prio_min = r->min_prio; device_printf(sc->dev, "min_prio: %d\n", prio_min); STAILQ_FOREACH(region, &r->bus_regions, link) { prio = region->priority; direct_msg = prio >= prio_min ? "direct" : "indirect"; type_msg = region->static_regwin ? "static" : "dynamic"; device_printf(sc->dev, "region 0x%llx+0x%llx priority " "%u %s/%s\n", (unsigned long long) region->addr, (unsigned long long) region->size, region->priority, direct_msg, type_msg); } } return (0); } /** * Find a hardware specification for @p dev. * * @param sc The bhndb device state. * @param devs All devices enumerated on the bridged bhnd bus. * @param ndevs The length of @p devs. * @param[out] hw On success, the matched hardware specification. * with @p dev. * * @retval 0 success * @retval non-zero if an error occurs fetching device info for comparison. */ static int bhndb_find_hwspec(struct bhndb_softc *sc, device_t *devs, int ndevs, const struct bhndb_hw **hw) { const struct bhndb_hw *next, *hw_table; /* Search for the first matching hardware config. */ hw_table = BHNDB_BUS_GET_HARDWARE_TABLE(sc->parent_dev, sc->dev); for (next = hw_table; next->hw_reqs != NULL; next++) { if (!bhndb_hw_matches(devs, ndevs, next)) continue; /* Found */ *hw = next; return (0); } return (ENOENT); } /** * Read the ChipCommon identification data for this device. * * @param sc bhndb device state. * @param cfg The hardware configuration to use when mapping the ChipCommon * registers. * @param[out] result the chip identification data. * * @retval 0 success * @retval non-zero if the ChipCommon identification data could not be read. */ static int bhndb_read_chipid(struct bhndb_softc *sc, const struct bhndb_hwcfg *cfg, struct bhnd_chipid *result) { const struct bhnd_chipid *parent_cid; const struct bhndb_regwin *cc_win; struct resource_spec rs; int error; /* Let our parent device override the discovery process */ parent_cid = BHNDB_BUS_GET_CHIPID(sc->parent_dev, sc->dev); if (parent_cid != NULL) { *result = *parent_cid; return (0); } /* Find a register window we can use to map the first CHIPC_CHIPID_SIZE * of ChipCommon registers. */ cc_win = bhndb_regwin_find_best(cfg->register_windows, BHND_DEVCLASS_CC, 0, BHND_PORT_DEVICE, 0, 0, CHIPC_CHIPID_SIZE); if (cc_win == NULL) { device_printf(sc->dev, "no chipcommon register window\n"); return (0); } /* We can assume a device without a static ChipCommon window uses the * default ChipCommon address. */ if (cc_win->win_type == BHNDB_REGWIN_T_DYN) { error = BHNDB_SET_WINDOW_ADDR(sc->dev, cc_win, BHND_DEFAULT_CHIPC_ADDR); if (error) { device_printf(sc->dev, "failed to set chipcommon " "register window\n"); return (error); } } /* Let the default bhnd implemenation alloc/release the resource and * perform the read */ rs.type = cc_win->res.type; rs.rid = cc_win->res.rid; rs.flags = RF_ACTIVE; return (bhnd_read_chipid(sc->parent_dev, &rs, cc_win->win_offset, result)); } /** * Helper function that must be called by subclass bhndb(4) drivers * when implementing DEVICE_ATTACH() before calling any bhnd(4) or bhndb(4) * APIs on the bridge device. * * @param dev The bridge device to attach. * @param bridge_devclass The device class of the bridging core. This is used * to automatically detect the bridge core, and to disable additional bridge * cores (e.g. PCMCIA on a PCIe device). */ int bhndb_attach(device_t dev, bhnd_devclass_t bridge_devclass) { struct bhndb_devinfo *dinfo; struct bhndb_softc *sc; const struct bhndb_hwcfg *cfg; int error; sc = device_get_softc(dev); sc->dev = dev; sc->parent_dev = device_get_parent(dev); sc->bridge_class = bridge_devclass; BHNDB_LOCK_INIT(sc); /* Read our chip identification data */ cfg = BHNDB_BUS_GET_GENERIC_HWCFG(sc->parent_dev, sc->dev); if ((error = bhndb_read_chipid(sc, cfg, &sc->chipid))) return (error); /* Populate generic resource allocation state. */ sc->bus_res = bhndb_alloc_resources(dev, sc->parent_dev, cfg); if (sc->bus_res == NULL) { return (ENXIO); } /* Attach our bridged bus device */ sc->bus_dev = BUS_ADD_CHILD(dev, 0, "bhnd", -1); if (sc->bus_dev == NULL) { error = ENXIO; goto failed; } /* Configure address space */ dinfo = device_get_ivars(sc->bus_dev); dinfo->addrspace = BHNDB_ADDRSPACE_BRIDGED; /* Finish attach */ return (bus_generic_attach(dev)); failed: BHNDB_LOCK_DESTROY(sc); if (sc->bus_res != NULL) bhndb_free_resources(sc->bus_res); return (error); } /** * Default bhndb(4) implementation of BHNDB_INIT_FULL_CONFIG(). * * This function provides the default bhndb implementation of * BHNDB_INIT_FULL_CONFIG(), and must be called by any subclass driver * overriding BHNDB_INIT_FULL_CONFIG(). * * As documented by BHNDB_INIT_FULL_CONFIG, this function performs final * bridge configuration based on the hardware information enumerated by the * child bus, and will reset all resource allocation state on the bridge. * * When calling this method: * - Any bus resources previously allocated by @p child must be deallocated. * - The @p child bus must have performed initial enumeration -- but not * probe or attachment -- of its children. */ int bhndb_generic_init_full_config(device_t dev, device_t child, const struct bhndb_hw_priority *hw_prio_table) { struct bhndb_softc *sc; const struct bhndb_hw *hw; struct bhndb_resources *r; device_t *devs; device_t hostb; int ndevs; int error; sc = device_get_softc(dev); hostb = NULL; /* Fetch the full set of bhnd-attached cores */ if ((error = device_get_children(sc->bus_dev, &devs, &ndevs))) return (error); /* Find our host bridge device */ hostb = BHNDB_FIND_HOSTB_DEVICE(dev, child); if (hostb == NULL) { device_printf(sc->dev, "no host bridge core found\n"); error = ENODEV; goto cleanup; } /* Find our full register window configuration */ if ((error = bhndb_find_hwspec(sc, devs, ndevs, &hw))) { device_printf(sc->dev, "unable to identify device, " " using generic bridge resource definitions\n"); error = 0; goto cleanup; } if (bootverbose || BHNDB_DEBUG(PRIO)) device_printf(sc->dev, "%s resource configuration\n", hw->name); /* Release existing resource state */ BHNDB_LOCK(sc); bhndb_free_resources(sc->bus_res); sc->bus_res = NULL; BHNDB_UNLOCK(sc); /* Allocate new resource state */ r = bhndb_alloc_resources(dev, sc->parent_dev, hw->cfg); if (r == NULL) { error = ENXIO; goto cleanup; } /* Initialize our resource priority configuration */ error = bhndb_initialize_region_cfg(sc, devs, ndevs, hw_prio_table, r); if (error) { bhndb_free_resources(r); goto cleanup; } /* Update our bridge state */ BHNDB_LOCK(sc); sc->bus_res = r; sc->hostb_dev = hostb; BHNDB_UNLOCK(sc); cleanup: free(devs, M_TEMP); return (error); } /** * Default bhndb(4) implementation of DEVICE_DETACH(). * * This function detaches any child devices, and if successful, releases all * resources held by the bridge device. */ int bhndb_generic_detach(device_t dev) { struct bhndb_softc *sc; int error; sc = device_get_softc(dev); /* Detach children */ if ((error = bus_generic_detach(dev))) return (error); /* Clean up our driver state. */ bhndb_free_resources(sc->bus_res); BHNDB_LOCK_DESTROY(sc); return (0); } /** * Default bhndb(4) implementation of DEVICE_SUSPEND(). * * This function calls bus_generic_suspend() (or implements equivalent * behavior). */ int bhndb_generic_suspend(device_t dev) { return (bus_generic_suspend(dev)); } /** * Default bhndb(4) implementation of DEVICE_RESUME(). * * This function calls bus_generic_resume() (or implements equivalent * behavior). */ int bhndb_generic_resume(device_t dev) { struct bhndb_softc *sc; struct bhndb_resources *bus_res; struct bhndb_dw_alloc *dwa; int error; sc = device_get_softc(dev); bus_res = sc->bus_res; /* Guarantee that all in-use dynamic register windows are mapped to * their previously configured target address. */ BHNDB_LOCK(sc); for (size_t i = 0; i < bus_res->dwa_count; i++) { dwa = &bus_res->dw_alloc[i]; /* Skip regions that were not previously used */ if (bhndb_dw_is_free(bus_res, dwa) && dwa->target == 0x0) continue; /* Otherwise, ensure the register window is correct before * any children attempt MMIO */ error = BHNDB_SET_WINDOW_ADDR(dev, dwa->win, dwa->target); if (error) break; } BHNDB_UNLOCK(sc); /* Error restoring hardware state; children cannot be safely resumed */ if (error) { device_printf(dev, "Unable to restore hardware configuration; " "cannot resume: %d\n", error); return (error); } return (bus_generic_resume(dev)); } /** * Default implementation of BHNDB_SUSPEND_RESOURCE. */ static void bhndb_suspend_resource(device_t dev, device_t child, int type, struct resource *r) { struct bhndb_softc *sc; struct bhndb_dw_alloc *dwa; sc = device_get_softc(dev); // TODO: IRQs? if (type != SYS_RES_MEMORY) return; BHNDB_LOCK(sc); dwa = bhndb_dw_find_resource(sc->bus_res, r); if (dwa == NULL) { BHNDB_UNLOCK(sc); return; } if (BHNDB_DEBUG(PRIO)) device_printf(child, "suspend resource type=%d 0x%jx+0x%jx\n", type, rman_get_start(r), rman_get_size(r)); /* Release the resource's window reference */ bhndb_dw_release(sc->bus_res, dwa, r); BHNDB_UNLOCK(sc); } /** * Default implementation of BHNDB_RESUME_RESOURCE. */ static int bhndb_resume_resource(device_t dev, device_t child, int type, struct resource *r) { struct bhndb_softc *sc; sc = device_get_softc(dev); // TODO: IRQs? if (type != SYS_RES_MEMORY) return (0); /* Inactive resources don't require reallocation of bridge resources */ if (!(rman_get_flags(r) & RF_ACTIVE)) return (0); if (BHNDB_DEBUG(PRIO)) device_printf(child, "resume resource type=%d 0x%jx+0x%jx\n", type, rman_get_start(r), rman_get_size(r)); return (bhndb_try_activate_resource(sc, rman_get_device(r), type, rman_get_rid(r), r, NULL)); } /** * Default bhndb(4) implementation of BUS_READ_IVAR(). */ static int bhndb_read_ivar(device_t dev, device_t child, int index, uintptr_t *result) { return (ENOENT); } /** * Default bhndb(4) implementation of BUS_WRITE_IVAR(). */ static int bhndb_write_ivar(device_t dev, device_t child, int index, uintptr_t value) { return (ENOENT); } /** * Return the address space for the given @p child device. */ bhndb_addrspace bhndb_get_addrspace(struct bhndb_softc *sc, device_t child) { struct bhndb_devinfo *dinfo; device_t imd_dev; /* Find the directly attached parent of the requesting device */ imd_dev = child; while (imd_dev != NULL && device_get_parent(imd_dev) != sc->dev) imd_dev = device_get_parent(imd_dev); if (imd_dev == NULL) panic("bhndb address space request for non-child device %s\n", device_get_nameunit(child)); dinfo = device_get_ivars(imd_dev); return (dinfo->addrspace); } /** * Return the rman instance for a given resource @p type, if any. * * @param sc The bhndb device state. * @param child The requesting child. * @param type The resource type (e.g. SYS_RES_MEMORY, SYS_RES_IRQ, ...) */ static struct rman * bhndb_get_rman(struct bhndb_softc *sc, device_t child, int type) { switch (bhndb_get_addrspace(sc, child)) { case BHNDB_ADDRSPACE_NATIVE: switch (type) { case SYS_RES_MEMORY: return (&sc->bus_res->ht_mem_rman); case SYS_RES_IRQ: return (NULL); default: return (NULL); }; case BHNDB_ADDRSPACE_BRIDGED: switch (type) { case SYS_RES_MEMORY: return (&sc->bus_res->br_mem_rman); case SYS_RES_IRQ: // TODO // return &sc->irq_rman; return (NULL); default: return (NULL); }; } /* Quieten gcc */ return (NULL); } /** * Default implementation of BUS_ADD_CHILD() */ static device_t bhndb_add_child(device_t dev, u_int order, const char *name, int unit) { struct bhndb_devinfo *dinfo; device_t child; child = device_add_child_ordered(dev, order, name, unit); if (child == NULL) return (NULL); dinfo = malloc(sizeof(struct bhndb_devinfo), M_BHND, M_NOWAIT); if (dinfo == NULL) { device_delete_child(dev, child); return (NULL); } dinfo->addrspace = BHNDB_ADDRSPACE_NATIVE; resource_list_init(&dinfo->resources); device_set_ivars(child, dinfo); return (child); } /** * Default implementation of BUS_CHILD_DELETED(). */ static void bhndb_child_deleted(device_t dev, device_t child) { struct bhndb_devinfo *dinfo = device_get_ivars(child); if (dinfo != NULL) { resource_list_free(&dinfo->resources); free(dinfo, M_BHND); } device_set_ivars(child, NULL); } /** * Default implementation of BHNDB_GET_CHIPID(). */ static const struct bhnd_chipid * bhndb_get_chipid(device_t dev, device_t child) { struct bhndb_softc *sc = device_get_softc(dev); return (&sc->chipid); } /** * Default implementation of BHNDB_IS_HW_DISABLED(). */ static bool bhndb_is_hw_disabled(device_t dev, device_t child) { struct bhndb_softc *sc; struct bhnd_core_info core; sc = device_get_softc(dev); /* Requestor must be attached to the bhnd bus */ if (device_get_parent(child) != sc->bus_dev) { return (BHND_BUS_IS_HW_DISABLED(device_get_parent(dev), child)); } /* Fetch core info */ core = bhnd_get_core_info(child); /* Try to defer to the bhndb bus parent */ if (BHNDB_BUS_IS_CORE_DISABLED(sc->parent_dev, dev, &core)) return (true); /* Otherwise, we treat bridge-capable cores as unpopulated if they're * not the configured host bridge */ if (BHND_DEVCLASS_SUPPORTS_HOSTB(bhnd_core_class(&core))) return (BHNDB_FIND_HOSTB_DEVICE(dev, sc->bus_dev) != child); /* Otherwise, assume the core is populated */ return (false); } /* ascending core index comparison used by bhndb_find_hostb_device() */ static int compare_core_index(const void *lhs, const void *rhs) { u_int left = bhnd_get_core_index(*(const device_t *) lhs); u_int right = bhnd_get_core_index(*(const device_t *) rhs); if (left < right) return (-1); else if (left > right) return (1); else return (0); } /** * Default bhndb(4) implementation of BHND_BUS_FIND_HOSTB_DEVICE(). * * This function uses a heuristic valid on all known PCI/PCIe/PCMCIA-bridged * bhnd(4) devices to determine the hostb core: * * - The core must have a Broadcom vendor ID. * - The core devclass must match the bridge type. * - The core must be the first device on the bus with the bridged device * class. * * @param dev The bhndb device * @param child The requesting bhnd bus. */ static device_t bhndb_find_hostb_device(device_t dev, device_t child) { struct bhndb_softc *sc; struct bhnd_core_match md; device_t hostb_dev, *devlist; int devcnt, error; sc = device_get_softc(dev); /* Determine required device class and set up a match descriptor. */ md = (struct bhnd_core_match) { .vendor = BHND_MFGID_BCM, .device = BHND_COREID_INVALID, .hwrev = { BHND_HWREV_INVALID, BHND_HWREV_INVALID }, .class = sc->bridge_class, .unit = 0 }; /* Must be the absolute first matching device on the bus. */ if ((error = device_get_children(child, &devlist, &devcnt))) return (false); /* Sort by core index value, ascending */ qsort(devlist, devcnt, sizeof(*devlist), compare_core_index); /* Find the hostb device */ hostb_dev = NULL; for (int i = 0; i < devcnt; i++) { if (bhnd_device_matches(devlist[i], &md)) { hostb_dev = devlist[i]; break; } } /* Clean up */ free(devlist, M_TEMP); return (hostb_dev); } /** * Default bhndb(4) implementation of BUS_ALLOC_RESOURCE(). */ static struct resource * bhndb_alloc_resource(device_t dev, device_t child, int type, int *rid, rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) { struct bhndb_softc *sc; struct resource_list_entry *rle; struct resource *rv; struct rman *rm; int error; bool passthrough, isdefault; sc = device_get_softc(dev); passthrough = (device_get_parent(child) != dev); isdefault = RMAN_IS_DEFAULT_RANGE(start, end); rle = NULL; /* Populate defaults */ if (!passthrough && isdefault) { /* Fetch the resource list entry. */ rle = resource_list_find(BUS_GET_RESOURCE_LIST(dev, child), type, *rid); if (rle == NULL) { device_printf(dev, "default resource %#x type %d for child %s " "not found\n", *rid, type, device_get_nameunit(child)); return (NULL); } if (rle->res != NULL) { device_printf(dev, "resource entry %#x type %d for child %s is busy\n", *rid, type, device_get_nameunit(child)); return (NULL); } start = rle->start; end = rle->end; count = ulmax(count, rle->count); } /* Validate resource addresses */ if (start > end || count > ((end - start) + 1)) return (NULL); /* Fetch the resource manager */ rm = bhndb_get_rman(sc, child, type); if (rm == NULL) return (NULL); /* Make our reservation */ rv = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE, child); if (rv == NULL) return (NULL); rman_set_rid(rv, *rid); /* Activate */ if (flags & RF_ACTIVE) { error = bus_activate_resource(child, type, *rid, rv); if (error) { device_printf(dev, "failed to activate entry %#x type %d for " "child %s: %d\n", *rid, type, device_get_nameunit(child), error); rman_release_resource(rv); return (NULL); } } /* Update child's resource list entry */ if (rle != NULL) { rle->res = rv; rle->start = rman_get_start(rv); rle->end = rman_get_end(rv); rle->count = rman_get_size(rv); } return (rv); } /** * Default bhndb(4) implementation of BUS_RELEASE_RESOURCE(). */ static int bhndb_release_resource(device_t dev, device_t child, int type, int rid, struct resource *r) { int error; /* Deactivate resources */ if (rman_get_flags(r) & RF_ACTIVE) { error = BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, r); if (error) return (error); } if ((error = rman_release_resource(r))) return (error); return (0); } /** * Default bhndb(4) implementation of BUS_ADJUST_RESOURCE(). */ static int bhndb_adjust_resource(device_t dev, device_t child, int type, struct resource *r, rman_res_t start, rman_res_t end) { struct bhndb_softc *sc; struct rman *rm; int error; sc = device_get_softc(dev); error = 0; /* Fetch resource manager */ rm = bhndb_get_rman(sc, child, type); if (rm == NULL) return (ENXIO); if (!rman_is_region_manager(r, rm)) return (ENXIO); /* If active, adjustment is limited by the assigned window. */ BHNDB_LOCK(sc); // TODO: Currently unsupported error = ENODEV; BHNDB_UNLOCK(sc); if (!error) error = rman_adjust_resource(r, start, end); return (error); } /** * Initialize child resource @p r with a virtual address, tag, and handle * copied from @p parent, adjusted to contain only the range defined by * @p offsize and @p size. * * @param r The register to be initialized. * @param parent The parent bus resource that fully contains the subregion. * @param offset The subregion offset within @p parent. * @param size The subregion size. * @p r. */ static int bhndb_init_child_resource(struct resource *r, struct resource *parent, bhnd_size_t offset, bhnd_size_t size) { bus_space_handle_t bh, child_bh; bus_space_tag_t bt; uintptr_t vaddr; int error; /* Fetch the parent resource's real bus values */ vaddr = (uintptr_t) rman_get_virtual(parent); bt = rman_get_bustag(parent); bh = rman_get_bushandle(parent); /* Configure child resource with window-adjusted real bus values */ vaddr += offset; error = bus_space_subregion(bt, bh, offset, size, &child_bh); if (error) return (error); rman_set_virtual(r, (void *) vaddr); rman_set_bustag(r, bt); rman_set_bushandle(r, child_bh); return (0); } /** * Attempt activation of a fixed register window mapping for @p child. * * @param sc BHNDB device state. * @param region The static region definition capable of mapping @p r. * @param child A child requesting resource activation. * @param type Resource type. * @param rid Resource identifier. * @param r Resource to be activated. * * @retval 0 if @p r was activated successfully * @retval ENOENT if no fixed register window was found. * @retval non-zero if @p r could not be activated. */ static int bhndb_activate_static_region(struct bhndb_softc *sc, struct bhndb_region *region, device_t child, int type, int rid, struct resource *r) { struct resource *bridge_res; const struct bhndb_regwin *win; bhnd_size_t parent_offset; rman_res_t r_start, r_size; int error; win = region->static_regwin; KASSERT(win != NULL && BHNDB_REGWIN_T_IS_STATIC(win->win_type), ("can't activate non-static region")); r_start = rman_get_start(r); r_size = rman_get_size(r); /* Find the corresponding bridge resource */ bridge_res = bhndb_find_regwin_resource(sc->bus_res, win); if (bridge_res == NULL) return (ENXIO); /* Calculate subregion offset within the parent resource */ parent_offset = r_start - region->addr; parent_offset += win->win_offset; /* Configure resource with its real bus values. */ error = bhndb_init_child_resource(r, bridge_res, parent_offset, r_size); if (error) return (error); /* Mark active */ if ((error = rman_activate_resource(r))) return (error); return (0); } /** * Attempt to allocate/retain a dynamic register window for @p r, returning * the retained window. * * @param sc The bhndb driver state. * @param r The resource for which a window will be retained. */ static struct bhndb_dw_alloc * bhndb_retain_dynamic_window(struct bhndb_softc *sc, struct resource *r) { struct bhndb_dw_alloc *dwa; rman_res_t r_start, r_size; int error; BHNDB_LOCK_ASSERT(sc, MA_OWNED); r_start = rman_get_start(r); r_size = rman_get_size(r); /* Look for an existing dynamic window we can reference */ dwa = bhndb_dw_find_mapping(sc->bus_res, r_start, r_size); if (dwa != NULL) { if (bhndb_dw_retain(sc->bus_res, dwa, r) == 0) return (dwa); return (NULL); } /* Otherwise, try to reserve a free window */ dwa = bhndb_dw_next_free(sc->bus_res); if (dwa == NULL) { /* No free windows */ return (NULL); } /* Set the window target */ error = bhndb_dw_set_addr(sc->dev, sc->bus_res, dwa, rman_get_start(r), rman_get_size(r)); if (error) { device_printf(sc->dev, "dynamic window initialization " "for 0x%llx-0x%llx failed: %d\n", (unsigned long long) r_start, (unsigned long long) r_start + r_size - 1, error); return (NULL); } /* Add our reservation */ if (bhndb_dw_retain(sc->bus_res, dwa, r)) return (NULL); return (dwa); } /** * Activate a resource using any viable static or dynamic register window. * * @param sc The bhndb driver state. * @param child The child holding ownership of @p r. * @param type The type of the resource to be activated. * @param rid The resource ID of @p r. * @param r The resource to be activated * @param[out] indirect On error and if not NULL, will be set to 'true' if * the caller should instead use an indirect resource mapping. * * @retval 0 success * @retval non-zero activation failed. */ static int bhndb_try_activate_resource(struct bhndb_softc *sc, device_t child, int type, int rid, struct resource *r, bool *indirect) { struct bhndb_region *region; struct bhndb_dw_alloc *dwa; bhndb_priority_t dw_priority; rman_res_t r_start, r_size; rman_res_t parent_offset; int error; BHNDB_LOCK_ASSERT(sc, MA_NOTOWNED); // TODO - IRQs if (type != SYS_RES_MEMORY) return (ENXIO); if (indirect) *indirect = false; r_start = rman_get_start(r); r_size = rman_get_size(r); /* Activate native addrspace resources using the host address space */ if (bhndb_get_addrspace(sc, child) == BHNDB_ADDRSPACE_NATIVE) { struct resource *parent; /* Find the bridge resource referenced by the child */ parent = bhndb_find_resource_range(sc->bus_res, r_start, r_size); if (parent == NULL) { device_printf(sc->dev, "host resource not found " "for 0x%llx-0x%llx\n", (unsigned long long) r_start, (unsigned long long) r_start + r_size - 1); return (ENOENT); } /* Initialize child resource with the real bus values */ error = bhndb_init_child_resource(r, parent, r_start - rman_get_start(parent), r_size); if (error) return (error); /* Try to activate child resource */ return (rman_activate_resource(r)); } /* Default to low priority */ dw_priority = BHNDB_PRIORITY_LOW; /* Look for a bus region matching the resource's address range */ region = bhndb_find_resource_region(sc->bus_res, r_start, r_size); if (region != NULL) dw_priority = region->priority; /* Prefer static mappings over consuming a dynamic windows. */ if (region && region->static_regwin) { error = bhndb_activate_static_region(sc, region, child, type, rid, r); if (error) device_printf(sc->dev, "static window allocation " "for 0x%llx-0x%llx failed\n", (unsigned long long) r_start, (unsigned long long) r_start + r_size - 1); return (error); } /* A dynamic window will be required; is this resource high enough * priority to be reserved a dynamic window? */ if (dw_priority < sc->bus_res->min_prio) { if (indirect) *indirect = true; return (ENOMEM); } /* Find and retain a usable window */ BHNDB_LOCK(sc); { dwa = bhndb_retain_dynamic_window(sc, r); } BHNDB_UNLOCK(sc); if (dwa == NULL) { if (indirect) *indirect = true; return (ENOMEM); } /* Configure resource with its real bus values. */ parent_offset = dwa->win->win_offset; parent_offset += r_start - dwa->target; error = bhndb_init_child_resource(r, dwa->parent_res, parent_offset, dwa->win->win_size); if (error) goto failed; /* Mark active */ if ((error = rman_activate_resource(r))) goto failed; return (0); failed: /* Release our region allocation. */ BHNDB_LOCK(sc); bhndb_dw_release(sc->bus_res, dwa, r); BHNDB_UNLOCK(sc); return (error); } /** * Default bhndb(4) implementation of BUS_ACTIVATE_RESOURCE(). * * Maps resource activation requests to a viable static or dynamic * register window, if any. */ static int bhndb_activate_resource(device_t dev, device_t child, int type, int rid, struct resource *r) { struct bhndb_softc *sc = device_get_softc(dev); return (bhndb_try_activate_resource(sc, child, type, rid, r, NULL)); } /** * Default bhndb(4) implementation of BUS_DEACTIVATE_RESOURCE(). */ static int bhndb_deactivate_resource(device_t dev, device_t child, int type, int rid, struct resource *r) { struct bhndb_dw_alloc *dwa; struct bhndb_softc *sc; struct rman *rm; int error; sc = device_get_softc(dev); if ((rm = bhndb_get_rman(sc, child, type)) == NULL) return (EINVAL); /* Mark inactive */ if ((error = rman_deactivate_resource(r))) return (error); /* Free any dynamic window allocation. */ if (bhndb_get_addrspace(sc, child) == BHNDB_ADDRSPACE_BRIDGED) { BHNDB_LOCK(sc); dwa = bhndb_dw_find_resource(sc->bus_res, r); if (dwa != NULL) bhndb_dw_release(sc->bus_res, dwa, r); BHNDB_UNLOCK(sc); } return (0); } /** * Default bhndb(4) implementation of BUS_GET_RESOURCE_LIST(). */ static struct resource_list * bhndb_get_resource_list(device_t dev, device_t child) { struct bhndb_devinfo *dinfo = device_get_ivars(child); return (&dinfo->resources); } /** * Default bhndb(4) implementation of BHND_BUS_ACTIVATE_RESOURCE(). * * For BHNDB_ADDRSPACE_NATIVE children, all resources may be assumed to * be activated by the bridge. * * For BHNDB_ADDRSPACE_BRIDGED children, attempts to activate a static register * window, a dynamic register window, or configures @p r as an indirect * resource -- in that order. */ static int bhndb_activate_bhnd_resource(device_t dev, device_t child, int type, int rid, struct bhnd_resource *r) { struct bhndb_softc *sc; struct bhndb_region *region; rman_res_t r_start, r_size; int error; bool indirect; KASSERT(!r->direct, ("direct flag set on inactive resource")); KASSERT(!(rman_get_flags(r->res) & RF_ACTIVE), ("RF_ACTIVE set on inactive resource")); sc = device_get_softc(dev); r_start = rman_get_start(r->res); r_size = rman_get_size(r->res); /* Verify bridged address range's resource priority, and skip direct * allocation if the priority is too low. */ if (bhndb_get_addrspace(sc, child) == BHNDB_ADDRSPACE_BRIDGED) { bhndb_priority_t r_prio; region = bhndb_find_resource_region(sc->bus_res, r_start, r_size); if (region != NULL) r_prio = region->priority; else r_prio = BHNDB_PRIORITY_NONE; /* If less than the minimum dynamic window priority, this * resource should always be indirect. */ if (r_prio < sc->bus_res->min_prio) return (0); } /* Attempt direct activation */ error = bhndb_try_activate_resource(sc, child, type, rid, r->res, &indirect); if (!error) { r->direct = true; } else if (indirect) { /* The request was valid, but no viable register window is * available; indirection must be employed. */ error = 0; r->direct = false; } if (BHNDB_DEBUG(PRIO) && bhndb_get_addrspace(sc, child) == BHNDB_ADDRSPACE_BRIDGED) { device_printf(child, "activated 0x%llx-0x%llx as %s " "resource\n", (unsigned long long) r_start, (unsigned long long) r_start + r_size - 1, r->direct ? "direct" : "indirect"); } return (error); }; /** * Default bhndb(4) implementation of BHND_BUS_DEACTIVATE_RESOURCE(). */ static int bhndb_deactivate_bhnd_resource(device_t dev, device_t child, int type, int rid, struct bhnd_resource *r) { int error; /* Indirect resources don't require activation */ if (!r->direct) return (0); KASSERT(rman_get_flags(r->res) & RF_ACTIVE, ("RF_ACTIVE not set on direct resource")); /* Perform deactivation */ error = bus_deactivate_resource(child, type, rid, r->res); if (!error) r->direct = false; return (error); }; /** * Slow path for bhndb_io_resource(). * * Iterates over the existing allocated dynamic windows looking for a viable * in-use region; the first matching region is returned. */ static struct bhndb_dw_alloc * bhndb_io_resource_slow(struct bhndb_softc *sc, bus_addr_t addr, bus_size_t size, bus_size_t *offset) { struct bhndb_resources *br; struct bhndb_dw_alloc *dwa; BHNDB_LOCK_ASSERT(sc, MA_OWNED); br = sc->bus_res; /* Search for an existing dynamic mapping of this address range. * Static regions are not searched, as a statically mapped * region would never be allocated as an indirect resource. */ for (size_t i = 0; i < br->dwa_count; i++) { const struct bhndb_regwin *win; dwa = &br->dw_alloc[i]; win = dwa->win; KASSERT(win->win_type == BHNDB_REGWIN_T_DYN, ("invalid register window type")); /* Verify the range */ if (addr < dwa->target) continue; if (addr + size > dwa->target + win->win_size) continue; /* Found */ *offset = dwa->win->win_offset; *offset += addr - dwa->target; return (dwa); } /* not found */ return (NULL); } /** * Find the bridge resource to be used for I/O requests. * * @param sc Bridge driver state. * @param addr The I/O target address. * @param size The size of the I/O operation to be performed at @p addr. * @param[out] offset The offset within the returned resource at which * to perform the I/O request. */ static inline struct bhndb_dw_alloc * bhndb_io_resource(struct bhndb_softc *sc, bus_addr_t addr, bus_size_t size, bus_size_t *offset) { struct bhndb_resources *br; struct bhndb_dw_alloc *dwa; int error; BHNDB_LOCK_ASSERT(sc, MA_OWNED); br = sc->bus_res; /* Try to fetch a free window */ dwa = bhndb_dw_next_free(br); /* * If no dynamic windows are available, look for an existing * region that maps the target range. * * If none are found, this is a child driver bug -- our window * over-commit should only fail in the case where a child driver leaks * resources, or perform operations out-of-order. * * Broadcom HND chipsets are designed to not require register window * swapping during execution; as long as the child devices are * attached/detached correctly, using the hardware's required order * of operations, there should always be a window available for the * current operation. */ if (dwa == NULL) { dwa = bhndb_io_resource_slow(sc, addr, size, offset); if (dwa == NULL) { panic("register windows exhausted attempting to map " "0x%llx-0x%llx\n", (unsigned long long) addr, (unsigned long long) addr+size-1); } return (dwa); } /* Adjust the window if the I/O request won't fit in the current * target range. */ if (addr < dwa->target || (dwa->target + dwa->win->win_size) - addr < size) { error = bhndb_dw_set_addr(sc->dev, sc->bus_res, dwa, addr, size); if (error) { panic("failed to set register window target mapping " "0x%llx-0x%llx\n", (unsigned long long) addr, (unsigned long long) addr+size-1); } } /* Calculate the offset and return */ *offset = (addr - dwa->target) + dwa->win->win_offset; return (dwa); } /* * BHND_BUS_(READ|WRITE_* implementations */ /* bhndb_bus_(read|write) common implementation */ #define BHNDB_IO_COMMON_SETUP(_io_size) \ struct bhndb_softc *sc; \ struct bhndb_dw_alloc *dwa; \ struct resource *io_res; \ bus_size_t io_offset; \ \ sc = device_get_softc(dev); \ \ BHNDB_LOCK(sc); \ dwa = bhndb_io_resource(sc, rman_get_start(r->res) + \ offset, _io_size, &io_offset); \ io_res = dwa->parent_res; \ \ KASSERT(!r->direct, \ ("bhnd_bus slow path used for direct resource")); \ \ KASSERT(rman_get_flags(io_res) & RF_ACTIVE, \ ("i/o resource is not active")); #define BHNDB_IO_COMMON_TEARDOWN() \ BHNDB_UNLOCK(sc); /* Defines a bhndb_bus_read_* method implementation */ #define BHNDB_IO_READ(_type, _name) \ static _type \ bhndb_bus_read_ ## _name (device_t dev, device_t child, \ struct bhnd_resource *r, bus_size_t offset) \ { \ _type v; \ BHNDB_IO_COMMON_SETUP(sizeof(_type)); \ v = bus_read_ ## _name (io_res, io_offset); \ BHNDB_IO_COMMON_TEARDOWN(); \ \ return (v); \ } /* Defines a bhndb_bus_write_* method implementation */ #define BHNDB_IO_WRITE(_type, _name) \ static void \ bhndb_bus_write_ ## _name (device_t dev, device_t child, \ struct bhnd_resource *r, bus_size_t offset, _type value) \ { \ BHNDB_IO_COMMON_SETUP(sizeof(_type)); \ bus_write_ ## _name (io_res, io_offset, value); \ BHNDB_IO_COMMON_TEARDOWN(); \ } /* Defines a bhndb_bus_(read|write)_multi_* method implementation */ #define BHNDB_IO_MULTI(_type, _rw, _name) \ static void \ bhndb_bus_ ## _rw ## _multi_ ## _name (device_t dev, \ device_t child, struct bhnd_resource *r, bus_size_t offset, \ _type *datap, bus_size_t count) \ { \ BHNDB_IO_COMMON_SETUP(sizeof(_type) * count); \ bus_ ## _rw ## _multi_ ## _name (io_res, io_offset, \ datap, count); \ BHNDB_IO_COMMON_TEARDOWN(); \ } /* Defines a complete set of read/write methods */ #define BHNDB_IO_METHODS(_type, _size) \ BHNDB_IO_READ(_type, _size) \ BHNDB_IO_WRITE(_type, _size) \ \ BHNDB_IO_READ(_type, stream_ ## _size) \ BHNDB_IO_WRITE(_type, stream_ ## _size) \ \ BHNDB_IO_MULTI(_type, read, _size) \ BHNDB_IO_MULTI(_type, write, _size) \ \ BHNDB_IO_MULTI(_type, read, stream_ ## _size) \ BHNDB_IO_MULTI(_type, write, stream_ ## _size) BHNDB_IO_METHODS(uint8_t, 1); BHNDB_IO_METHODS(uint16_t, 2); BHNDB_IO_METHODS(uint32_t, 4); /** * Default bhndb(4) implementation of BHND_BUS_BARRIER(). */ static void bhndb_bus_barrier(device_t dev, device_t child, struct bhnd_resource *r, bus_size_t offset, bus_size_t length, int flags) { bus_size_t remain; BHNDB_IO_COMMON_SETUP(length); /* TODO: It's unclear whether we need a barrier implementation, * and if we do, what it needs to actually do. This may need * revisiting once we have a better idea of requirements after * porting the core drivers. */ panic("implementation incorrect"); /* Use 4-byte reads where possible */ remain = length % sizeof(uint32_t); for (bus_size_t i = 0; i < (length - remain); i += 4) bus_read_4(io_res, io_offset + offset + i); /* Use 1 byte reads for the remainder */ for (bus_size_t i = 0; i < remain; i++) bus_read_1(io_res, io_offset + offset + length + i); BHNDB_IO_COMMON_TEARDOWN(); } /** * Default bhndb(4) implementation of BUS_SETUP_INTR(). */ static int bhndb_setup_intr(device_t dev, device_t child, struct resource *r, int flags, driver_filter_t filter, driver_intr_t handler, void *arg, void **cookiep) { // TODO return (EOPNOTSUPP); } /** * Default bhndb(4) implementation of BUS_TEARDOWN_INTR(). */ static int bhndb_teardown_intr(device_t dev, device_t child, struct resource *r, void *cookie) { // TODO return (EOPNOTSUPP); } /** * Default bhndb(4) implementation of BUS_CONFIG_INTR(). */ static int bhndb_config_intr(device_t dev, int irq, enum intr_trigger trig, enum intr_polarity pol) { // TODO return (EOPNOTSUPP); } /** * Default bhndb(4) implementation of BUS_BIND_INTR(). */ static int bhndb_bind_intr(device_t dev, device_t child, struct resource *r, int cpu) { // TODO return (EOPNOTSUPP); } /** * Default bhndb(4) implementation of BUS_DESCRIBE_INTR(). */ static int bhndb_describe_intr(device_t dev, device_t child, struct resource *irq, void *cookie, const char *descr) { // TODO return (EOPNOTSUPP); } /** * Default bhndb(4) implementation of BUS_GET_DMA_TAG(). */ static bus_dma_tag_t bhndb_get_dma_tag(device_t dev, device_t child) { // TODO return (NULL); } static device_method_t bhndb_methods[] = { /* Device interface */ \ DEVMETHOD(device_probe, bhndb_generic_probe), DEVMETHOD(device_detach, bhndb_generic_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD(device_suspend, bhndb_generic_suspend), DEVMETHOD(device_resume, bhndb_generic_resume), /* Bus interface */ DEVMETHOD(bus_probe_nomatch, bhndb_probe_nomatch), DEVMETHOD(bus_print_child, bhndb_print_child), DEVMETHOD(bus_child_pnpinfo_str, bhndb_child_pnpinfo_str), DEVMETHOD(bus_child_location_str, bhndb_child_location_str), DEVMETHOD(bus_add_child, bhndb_add_child), DEVMETHOD(bus_child_deleted, bhndb_child_deleted), DEVMETHOD(bus_alloc_resource, bhndb_alloc_resource), DEVMETHOD(bus_release_resource, bhndb_release_resource), DEVMETHOD(bus_activate_resource, bhndb_activate_resource), DEVMETHOD(bus_deactivate_resource, bhndb_deactivate_resource), DEVMETHOD(bus_setup_intr, bhndb_setup_intr), DEVMETHOD(bus_teardown_intr, bhndb_teardown_intr), DEVMETHOD(bus_config_intr, bhndb_config_intr), DEVMETHOD(bus_bind_intr, bhndb_bind_intr), DEVMETHOD(bus_describe_intr, bhndb_describe_intr), DEVMETHOD(bus_get_dma_tag, bhndb_get_dma_tag), DEVMETHOD(bus_adjust_resource, bhndb_adjust_resource), DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), DEVMETHOD(bus_delete_resource, bus_generic_rl_delete_resource), DEVMETHOD(bus_get_resource_list, bhndb_get_resource_list), DEVMETHOD(bus_read_ivar, bhndb_read_ivar), DEVMETHOD(bus_write_ivar, bhndb_write_ivar), /* BHNDB interface */ DEVMETHOD(bhndb_get_chipid, bhndb_get_chipid), DEVMETHOD(bhndb_init_full_config, bhndb_generic_init_full_config), DEVMETHOD(bhndb_find_hostb_device, bhndb_find_hostb_device), DEVMETHOD(bhndb_suspend_resource, bhndb_suspend_resource), DEVMETHOD(bhndb_resume_resource, bhndb_resume_resource), /* BHND interface */ DEVMETHOD(bhnd_bus_is_hw_disabled, bhndb_is_hw_disabled), DEVMETHOD(bhnd_bus_get_chipid, bhndb_get_chipid), DEVMETHOD(bhnd_bus_activate_resource, bhndb_activate_bhnd_resource), DEVMETHOD(bhnd_bus_deactivate_resource, bhndb_deactivate_bhnd_resource), DEVMETHOD(bhnd_bus_get_nvram_var, bhnd_bus_generic_get_nvram_var), DEVMETHOD(bhnd_bus_read_1, bhndb_bus_read_1), DEVMETHOD(bhnd_bus_read_2, bhndb_bus_read_2), DEVMETHOD(bhnd_bus_read_4, bhndb_bus_read_4), DEVMETHOD(bhnd_bus_write_1, bhndb_bus_write_1), DEVMETHOD(bhnd_bus_write_2, bhndb_bus_write_2), DEVMETHOD(bhnd_bus_write_4, bhndb_bus_write_4), DEVMETHOD(bhnd_bus_read_stream_1, bhndb_bus_read_stream_1), DEVMETHOD(bhnd_bus_read_stream_2, bhndb_bus_read_stream_2), DEVMETHOD(bhnd_bus_read_stream_4, bhndb_bus_read_stream_4), DEVMETHOD(bhnd_bus_write_stream_1, bhndb_bus_write_stream_1), DEVMETHOD(bhnd_bus_write_stream_2, bhndb_bus_write_stream_2), DEVMETHOD(bhnd_bus_write_stream_4, bhndb_bus_write_stream_4), DEVMETHOD(bhnd_bus_read_multi_1, bhndb_bus_read_multi_1), DEVMETHOD(bhnd_bus_read_multi_2, bhndb_bus_read_multi_2), DEVMETHOD(bhnd_bus_read_multi_4, bhndb_bus_read_multi_4), DEVMETHOD(bhnd_bus_write_multi_1, bhndb_bus_write_multi_1), DEVMETHOD(bhnd_bus_write_multi_2, bhndb_bus_write_multi_2), DEVMETHOD(bhnd_bus_write_multi_4, bhndb_bus_write_multi_4), DEVMETHOD(bhnd_bus_read_multi_stream_1, bhndb_bus_read_multi_stream_1), DEVMETHOD(bhnd_bus_read_multi_stream_2, bhndb_bus_read_multi_stream_2), DEVMETHOD(bhnd_bus_read_multi_stream_4, bhndb_bus_read_multi_stream_4), DEVMETHOD(bhnd_bus_write_multi_stream_1,bhndb_bus_write_multi_stream_1), DEVMETHOD(bhnd_bus_write_multi_stream_2,bhndb_bus_write_multi_stream_2), DEVMETHOD(bhnd_bus_write_multi_stream_4,bhndb_bus_write_multi_stream_4), DEVMETHOD(bhnd_bus_barrier, bhndb_bus_barrier), DEVMETHOD_END }; devclass_t bhndb_devclass; DEFINE_CLASS_0(bhndb, bhndb_driver, bhndb_methods, sizeof(struct bhndb_softc)); MODULE_VERSION(bhndb, 1); MODULE_DEPEND(bhndb, bhnd, 1, 1, 1); MODULE_DEPEND(bhndb, bhnd_chipc, 1, 1, 1);