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head/sys/dev/ofw/ofwpci.c
| Property | Old Value | New Value |
|---|---|---|
| svn:eol-style | null | native \ No newline at end of property |
| svn:keywords | null | FreeBSD=%H \ No newline at end of property |
| svn:mime-type | null | text/plain \ No newline at end of property |
| /*- | |||||
| * Copyright (c) 2011 Nathan Whitehorn | |||||
| * 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. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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("$FreeBSD$"); | |||||
| #include <sys/param.h> | |||||
| #include <sys/systm.h> | |||||
| #include <sys/module.h> | |||||
| #include <sys/bus.h> | |||||
| #include <sys/conf.h> | |||||
| #include <sys/kernel.h> | |||||
| #include <sys/rman.h> | |||||
| #include <dev/ofw/openfirm.h> | |||||
| #include <dev/ofw/ofw_pci.h> | |||||
| #include <dev/ofw/ofw_bus.h> | |||||
| #include <dev/ofw/ofw_bus_subr.h> | |||||
| #include <dev/ofw/ofwpci.h> | |||||
| #include <dev/pci/pcivar.h> | |||||
| #include <dev/pci/pcireg.h> | |||||
| #include <machine/bus.h> | |||||
| #include <machine/md_var.h> | |||||
| #include <machine/resource.h> | |||||
| #include <vm/vm.h> | |||||
| #include <vm/pmap.h> | |||||
| #include "pcib_if.h" | |||||
| /* | |||||
| * If it is necessary to set another value of this for | |||||
| * some platforms it should be set at fdt.h file | |||||
| */ | |||||
| #ifndef PCI_MAP_INTR | |||||
| #define PCI_MAP_INTR 4 | |||||
| #endif | |||||
| #define PCI_INTR_PINS 4 | |||||
| /* | |||||
| * bus interface. | |||||
| */ | |||||
| static struct resource * ofw_pci_alloc_resource(device_t, device_t, | |||||
| int, int *, rman_res_t, rman_res_t, rman_res_t, u_int); | |||||
| static int ofw_pci_release_resource(device_t, device_t, int, int, | |||||
| struct resource *); | |||||
| static int ofw_pci_activate_resource(device_t, device_t, int, int, | |||||
| struct resource *); | |||||
| static int ofw_pci_deactivate_resource(device_t, device_t, int, int, | |||||
| struct resource *); | |||||
| static int ofw_pci_adjust_resource(device_t, device_t, int, | |||||
| struct resource *, rman_res_t, rman_res_t); | |||||
| #ifdef __powerpc__ | |||||
| static bus_space_tag_t ofw_pci_bus_get_bus_tag(device_t, device_t); | |||||
| #endif | |||||
| /* | |||||
| * pcib interface | |||||
| */ | |||||
| static int ofw_pci_maxslots(device_t); | |||||
| /* | |||||
| * ofw_bus interface | |||||
| */ | |||||
| static phandle_t ofw_pci_get_node(device_t, device_t); | |||||
| /* | |||||
| * local methods | |||||
| */ | |||||
| static int ofw_pci_fill_ranges(phandle_t, struct ofw_pci_range *); | |||||
| /* | |||||
| * Driver methods. | |||||
| */ | |||||
| static device_method_t ofw_pci_methods[] = { | |||||
| /* Device interface */ | |||||
| DEVMETHOD(device_attach, ofw_pci_attach), | |||||
| /* Bus interface */ | |||||
| DEVMETHOD(bus_print_child, bus_generic_print_child), | |||||
| DEVMETHOD(bus_read_ivar, ofw_pci_read_ivar), | |||||
| DEVMETHOD(bus_write_ivar, ofw_pci_write_ivar), | |||||
| DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), | |||||
| DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), | |||||
| DEVMETHOD(bus_alloc_resource, ofw_pci_alloc_resource), | |||||
| DEVMETHOD(bus_release_resource, ofw_pci_release_resource), | |||||
| DEVMETHOD(bus_activate_resource, ofw_pci_activate_resource), | |||||
| DEVMETHOD(bus_deactivate_resource, ofw_pci_deactivate_resource), | |||||
| DEVMETHOD(bus_adjust_resource, ofw_pci_adjust_resource), | |||||
| #ifdef __powerpc__ | |||||
| DEVMETHOD(bus_get_bus_tag, ofw_pci_bus_get_bus_tag), | |||||
| #endif | |||||
| /* pcib interface */ | |||||
| DEVMETHOD(pcib_maxslots, ofw_pci_maxslots), | |||||
| DEVMETHOD(pcib_route_interrupt, ofw_pci_route_interrupt), | |||||
| /* ofw_bus interface */ | |||||
| DEVMETHOD(ofw_bus_get_node, ofw_pci_get_node), | |||||
| DEVMETHOD_END | |||||
| }; | |||||
| DEFINE_CLASS_0(ofw_pci, ofw_pci_driver, ofw_pci_methods, 0); | |||||
| int | |||||
| ofw_pci_init(device_t dev) | |||||
| { | |||||
| struct ofw_pci_softc *sc; | |||||
| phandle_t node; | |||||
| u_int32_t busrange[2]; | |||||
| struct ofw_pci_range *rp; | |||||
| int error; | |||||
| struct ofw_pci_cell_info *cell_info; | |||||
| node = ofw_bus_get_node(dev); | |||||
| sc = device_get_softc(dev); | |||||
| sc->sc_initialized = 1; | |||||
| sc->sc_range = NULL; | |||||
| cell_info = (struct ofw_pci_cell_info *)malloc(sizeof(*cell_info), | |||||
| M_DEVBUF, M_WAITOK | M_ZERO); | |||||
| sc->sc_cell_info = cell_info; | |||||
| if (OF_getencprop(node, "bus-range", busrange, sizeof(busrange)) != 8) | |||||
| busrange[0] = 0; | |||||
| sc->sc_dev = dev; | |||||
| sc->sc_node = node; | |||||
| sc->sc_bus = busrange[0]; | |||||
| if (sc->sc_quirks & OFW_PCI_QUIRK_RANGES_ON_CHILDREN) { | |||||
| phandle_t c; | |||||
| int n, i; | |||||
| sc->sc_nrange = 0; | |||||
| for (c = OF_child(node); c != 0; c = OF_peer(c)) { | |||||
| n = ofw_pci_nranges(c, cell_info); | |||||
| if (n > 0) | |||||
| sc->sc_nrange += n; | |||||
| } | |||||
| if (sc->sc_nrange == 0) { | |||||
| error = ENXIO; | |||||
| goto out; | |||||
| } | |||||
| sc->sc_range = malloc(sc->sc_nrange * sizeof(sc->sc_range[0]), | |||||
| M_DEVBUF, M_WAITOK); | |||||
| i = 0; | |||||
| for (c = OF_child(node); c != 0; c = OF_peer(c)) { | |||||
| n = ofw_pci_fill_ranges(c, &sc->sc_range[i]); | |||||
| if (n > 0) | |||||
| i += n; | |||||
| } | |||||
| KASSERT(i == sc->sc_nrange, ("range count mismatch")); | |||||
| } else { | |||||
| sc->sc_nrange = ofw_pci_nranges(node, cell_info); | |||||
| if (sc->sc_nrange <= 0) { | |||||
| device_printf(dev, "could not getranges\n"); | |||||
| error = ENXIO; | |||||
| goto out; | |||||
| } | |||||
| sc->sc_range = malloc(sc->sc_nrange * sizeof(sc->sc_range[0]), | |||||
| M_DEVBUF, M_WAITOK); | |||||
| ofw_pci_fill_ranges(node, sc->sc_range); | |||||
| } | |||||
| sc->sc_io_rman.rm_type = RMAN_ARRAY; | |||||
| sc->sc_io_rman.rm_descr = "PCI I/O Ports"; | |||||
| error = rman_init(&sc->sc_io_rman); | |||||
| if (error) { | |||||
| device_printf(dev, "rman_init() failed. error = %d\n", error); | |||||
| goto out; | |||||
| } | |||||
| sc->sc_mem_rman.rm_type = RMAN_ARRAY; | |||||
| sc->sc_mem_rman.rm_descr = "PCI Memory"; | |||||
| error = rman_init(&sc->sc_mem_rman); | |||||
| if (error) { | |||||
| device_printf(dev, "rman_init() failed. error = %d\n", error); | |||||
| goto out; | |||||
| } | |||||
| for (rp = sc->sc_range; rp < sc->sc_range + sc->sc_nrange && | |||||
| rp->pci_hi != 0; rp++) { | |||||
| error = 0; | |||||
| switch (rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) { | |||||
| case OFW_PCI_PHYS_HI_SPACE_CONFIG: | |||||
| break; | |||||
| case OFW_PCI_PHYS_HI_SPACE_IO: | |||||
| error = rman_manage_region(&sc->sc_io_rman, rp->pci, | |||||
| rp->pci + rp->size - 1); | |||||
| break; | |||||
| case OFW_PCI_PHYS_HI_SPACE_MEM32: | |||||
| case OFW_PCI_PHYS_HI_SPACE_MEM64: | |||||
| error = rman_manage_region(&sc->sc_mem_rman, rp->pci, | |||||
| rp->pci + rp->size - 1); | |||||
| break; | |||||
| } | |||||
| if (error) { | |||||
| device_printf(dev, | |||||
| "rman_manage_region(%x, %#jx, %#jx) failed. " | |||||
| "error = %d\n", rp->pci_hi & | |||||
| OFW_PCI_PHYS_HI_SPACEMASK, rp->pci, | |||||
| rp->pci + rp->size - 1, error); | |||||
| goto out; | |||||
| } | |||||
| } | |||||
| ofw_bus_setup_iinfo(node, &sc->sc_pci_iinfo, sizeof(cell_t)); | |||||
| return (0); | |||||
| out: | |||||
| free(cell_info, M_DEVBUF); | |||||
| free(sc->sc_range, M_DEVBUF); | |||||
| rman_fini(&sc->sc_io_rman); | |||||
| rman_fini(&sc->sc_mem_rman); | |||||
| return (error); | |||||
| } | |||||
| int | |||||
| ofw_pci_attach(device_t dev) | |||||
| { | |||||
| struct ofw_pci_softc *sc; | |||||
| int error; | |||||
| sc = device_get_softc(dev); | |||||
| if (!sc->sc_initialized) { | |||||
| error = ofw_pci_init(dev); | |||||
| if (error) | |||||
| return (error); | |||||
| } | |||||
| device_add_child(dev, "pci", -1); | |||||
| return (bus_generic_attach(dev)); | |||||
| } | |||||
| static int | |||||
| ofw_pci_maxslots(device_t dev) | |||||
| { | |||||
| return (PCI_SLOTMAX); | |||||
| } | |||||
| int | |||||
| ofw_pci_route_interrupt(device_t bus, device_t dev, int pin) | |||||
| { | |||||
| struct ofw_pci_softc *sc; | |||||
| struct ofw_pci_register reg; | |||||
| uint32_t pintr, mintr[PCI_MAP_INTR]; | |||||
| int intrcells; | |||||
| phandle_t iparent; | |||||
| sc = device_get_softc(bus); | |||||
| pintr = pin; | |||||
| /* Fabricate imap information in case this isn't an OFW device */ | |||||
| bzero(®, sizeof(reg)); | |||||
| reg.phys_hi = (pci_get_bus(dev) << OFW_PCI_PHYS_HI_BUSSHIFT) | | |||||
| (pci_get_slot(dev) << OFW_PCI_PHYS_HI_DEVICESHIFT) | | |||||
| (pci_get_function(dev) << OFW_PCI_PHYS_HI_FUNCTIONSHIFT); | |||||
| intrcells = ofw_bus_lookup_imap(ofw_bus_get_node(dev), | |||||
| &sc->sc_pci_iinfo, ®, sizeof(reg), &pintr, sizeof(pintr), | |||||
| mintr, sizeof(mintr), &iparent); | |||||
| if (intrcells != 0) { | |||||
| pintr = ofw_bus_map_intr(dev, iparent, intrcells, mintr); | |||||
| return (pintr); | |||||
| } | |||||
| /* | |||||
| * Maybe it's a real interrupt, not an intpin | |||||
| */ | |||||
| if (pin > PCI_INTR_PINS) | |||||
| return (pin); | |||||
| device_printf(bus, "could not route pin %d for device %d.%d\n", | |||||
| pin, pci_get_slot(dev), pci_get_function(dev)); | |||||
| return (PCI_INVALID_IRQ); | |||||
| } | |||||
| int | |||||
| ofw_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) | |||||
| { | |||||
| struct ofw_pci_softc *sc; | |||||
| sc = device_get_softc(dev); | |||||
| switch (which) { | |||||
| case PCIB_IVAR_DOMAIN: | |||||
| *result = device_get_unit(dev); | |||||
| return (0); | |||||
| case PCIB_IVAR_BUS: | |||||
| *result = sc->sc_bus; | |||||
| return (0); | |||||
| default: | |||||
| break; | |||||
| } | |||||
| return (ENOENT); | |||||
| } | |||||
| int | |||||
| ofw_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value) | |||||
| { | |||||
| struct ofw_pci_softc *sc; | |||||
| sc = device_get_softc(dev); | |||||
| switch (which) { | |||||
| case PCIB_IVAR_BUS: | |||||
| sc->sc_bus = value; | |||||
| return (0); | |||||
| default: | |||||
| break; | |||||
| } | |||||
| return (ENOENT); | |||||
| } | |||||
| int | |||||
| ofw_pci_nranges(phandle_t node, struct ofw_pci_cell_info *info) | |||||
| { | |||||
| ssize_t nbase_ranges; | |||||
| if (info == NULL) | |||||
| return (-1); | |||||
| info->host_address_cells = 1; | |||||
| info->size_cells = 2; | |||||
| info->pci_address_cell = 3; | |||||
| OF_getencprop(OF_parent(node), "#address-cells", | |||||
| &(info->host_address_cells), sizeof(info->host_address_cells)); | |||||
| OF_getencprop(node, "#address-cells", | |||||
| &(info->pci_address_cell), sizeof(info->pci_address_cell)); | |||||
| OF_getencprop(node, "#size-cells", &(info->size_cells), | |||||
| sizeof(info->size_cells)); | |||||
| nbase_ranges = OF_getproplen(node, "ranges"); | |||||
| if (nbase_ranges <= 0) | |||||
| return (-1); | |||||
| return (nbase_ranges / sizeof(cell_t) / | |||||
| (info->pci_address_cell + info->host_address_cells + | |||||
| info->size_cells)); | |||||
| } | |||||
| static struct resource * | |||||
| ofw_pci_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 ofw_pci_softc *sc; | |||||
| struct resource *rv; | |||||
| struct rman *rm; | |||||
| int needactivate; | |||||
| needactivate = flags & RF_ACTIVE; | |||||
| flags &= ~RF_ACTIVE; | |||||
| sc = device_get_softc(bus); | |||||
| switch (type) { | |||||
| case SYS_RES_MEMORY: | |||||
| rm = &sc->sc_mem_rman; | |||||
| break; | |||||
| case SYS_RES_IOPORT: | |||||
| rm = &sc->sc_io_rman; | |||||
| break; | |||||
| case SYS_RES_IRQ: | |||||
| return (bus_alloc_resource(bus, type, rid, start, end, count, | |||||
| flags)); | |||||
| default: | |||||
| device_printf(bus, "unknown resource request from %s\n", | |||||
| device_get_nameunit(child)); | |||||
| return (NULL); | |||||
| } | |||||
| rv = rman_reserve_resource(rm, start, end, count, flags, child); | |||||
| if (rv == NULL) { | |||||
| device_printf(bus, "failed to reserve resource for %s\n", | |||||
| device_get_nameunit(child)); | |||||
| return (NULL); | |||||
| } | |||||
| rman_set_rid(rv, *rid); | |||||
| if (needactivate) { | |||||
| if (bus_activate_resource(child, type, *rid, rv) != 0) { | |||||
| device_printf(bus, | |||||
| "failed to activate resource for %s\n", | |||||
| device_get_nameunit(child)); | |||||
| rman_release_resource(rv); | |||||
| return (NULL); | |||||
| } | |||||
| } | |||||
| return (rv); | |||||
| } | |||||
| static int | |||||
| ofw_pci_release_resource(device_t bus, device_t child, int type, int rid, | |||||
| struct resource *res) | |||||
| { | |||||
| if (rman_get_flags(res) & RF_ACTIVE) { | |||||
| int error = bus_deactivate_resource(child, type, rid, res); | |||||
| if (error) | |||||
| return error; | |||||
| } | |||||
| return (rman_release_resource(res)); | |||||
| } | |||||
| static int | |||||
| ofw_pci_activate_resource(device_t bus, device_t child, int type, int rid, | |||||
| struct resource *res) | |||||
| { | |||||
| struct ofw_pci_softc *sc; | |||||
| bus_space_handle_t handle; | |||||
| bus_space_tag_t tag; | |||||
| int rv; | |||||
| sc = device_get_softc(bus); | |||||
| if (type == SYS_RES_IRQ) { | |||||
| return (bus_activate_resource(bus, type, rid, res)); | |||||
| } | |||||
| if (type == SYS_RES_MEMORY || type == SYS_RES_IOPORT) { | |||||
| struct ofw_pci_range *rp; | |||||
| vm_paddr_t start; | |||||
| int space; | |||||
| start = (vm_paddr_t)rman_get_start(res); | |||||
| /* | |||||
| * Map this through the ranges list | |||||
| */ | |||||
| for (rp = sc->sc_range; rp < sc->sc_range + sc->sc_nrange && | |||||
| rp->pci_hi != 0; rp++) { | |||||
| if (start < rp->pci || start >= rp->pci + rp->size) | |||||
| continue; | |||||
| switch (rp->pci_hi & OFW_PCI_PHYS_HI_SPACEMASK) { | |||||
| case OFW_PCI_PHYS_HI_SPACE_IO: | |||||
| space = SYS_RES_IOPORT; | |||||
| break; | |||||
| case OFW_PCI_PHYS_HI_SPACE_MEM32: | |||||
| case OFW_PCI_PHYS_HI_SPACE_MEM64: | |||||
| space = SYS_RES_MEMORY; | |||||
| break; | |||||
| default: | |||||
| space = -1; | |||||
| } | |||||
| if (type == space) { | |||||
| start += (rp->host - rp->pci); | |||||
| break; | |||||
| } | |||||
| } | |||||
| if (bootverbose) | |||||
| printf("ofw_pci mapdev: start %jx, len %jd\n", | |||||
| (rman_res_t)start, rman_get_size(res)); | |||||
| tag = BUS_GET_BUS_TAG(child, child); | |||||
| if (tag == NULL) | |||||
| return (ENOMEM); | |||||
| rman_set_bustag(res, tag); | |||||
| rv = bus_space_map(tag, start, | |||||
| rman_get_size(res), 0, &handle); | |||||
| if (rv != 0) | |||||
| return (ENOMEM); | |||||
| rman_set_bushandle(res, handle); | |||||
| rman_set_virtual(res, (void *)handle); /* XXX for powerpc only ? */ | |||||
| } | |||||
| return (rman_activate_resource(res)); | |||||
| } | |||||
| #ifdef __powerpc__ | |||||
| static bus_space_tag_t | |||||
| ofw_pci_bus_get_bus_tag(device_t bus, device_t child) | |||||
| { | |||||
| return (&bs_le_tag); | |||||
| } | |||||
| #endif | |||||
| static int | |||||
| ofw_pci_deactivate_resource(device_t bus, device_t child, int type, int rid, | |||||
| struct resource *res) | |||||
| { | |||||
| /* | |||||
| * If this is a memory resource, unmap it. | |||||
| */ | |||||
| if ((type == SYS_RES_MEMORY) || (type == SYS_RES_IOPORT)) { | |||||
| u_int32_t psize; | |||||
| psize = rman_get_size(res); | |||||
| pmap_unmapdev((vm_offset_t)rman_get_virtual(res), psize); | |||||
| } | |||||
| return (rman_deactivate_resource(res)); | |||||
| } | |||||
| static int | |||||
| ofw_pci_adjust_resource(device_t bus, device_t child, int type, | |||||
| struct resource *res, rman_res_t start, rman_res_t end) | |||||
| { | |||||
| struct rman *rm = NULL; | |||||
| struct ofw_pci_softc *sc = device_get_softc(bus); | |||||
| KASSERT(!(rman_get_flags(res) & RF_ACTIVE), | |||||
| ("active resources cannot be adjusted")); | |||||
| if (rman_get_flags(res) & RF_ACTIVE) | |||||
| return (EINVAL); | |||||
| switch (type) { | |||||
| case SYS_RES_MEMORY: | |||||
| rm = &sc->sc_mem_rman; | |||||
| break; | |||||
| case SYS_RES_IOPORT: | |||||
| rm = &sc->sc_io_rman; | |||||
| break; | |||||
| default: | |||||
| return (ENXIO); | |||||
| } | |||||
| if (!rman_is_region_manager(res, rm)) | |||||
| return (EINVAL); | |||||
| return (rman_adjust_resource(res, start, end)); | |||||
| } | |||||
| static phandle_t | |||||
| ofw_pci_get_node(device_t bus, device_t dev) | |||||
| { | |||||
| struct ofw_pci_softc *sc; | |||||
| sc = device_get_softc(bus); | |||||
| /* We only have one child, the PCI bus, which needs our own node. */ | |||||
| return (sc->sc_node); | |||||
| } | |||||
| static int | |||||
| ofw_pci_fill_ranges(phandle_t node, struct ofw_pci_range *ranges) | |||||
| { | |||||
| int host_address_cells = 1, pci_address_cells = 3, size_cells = 2; | |||||
| cell_t *base_ranges; | |||||
| ssize_t nbase_ranges; | |||||
| int nranges; | |||||
| int i, j, k; | |||||
| OF_getencprop(OF_parent(node), "#address-cells", &host_address_cells, | |||||
| sizeof(host_address_cells)); | |||||
| OF_getencprop(node, "#address-cells", &pci_address_cells, | |||||
| sizeof(pci_address_cells)); | |||||
| OF_getencprop(node, "#size-cells", &size_cells, sizeof(size_cells)); | |||||
| nbase_ranges = OF_getproplen(node, "ranges"); | |||||
| if (nbase_ranges <= 0) | |||||
| return (-1); | |||||
| nranges = nbase_ranges / sizeof(cell_t) / | |||||
| (pci_address_cells + host_address_cells + size_cells); | |||||
| base_ranges = malloc(nbase_ranges, M_DEVBUF, M_WAITOK); | |||||
| OF_getencprop(node, "ranges", base_ranges, nbase_ranges); | |||||
| for (i = 0, j = 0; i < nranges; i++) { | |||||
| ranges[i].pci_hi = base_ranges[j++]; | |||||
| ranges[i].pci = 0; | |||||
| for (k = 0; k < pci_address_cells - 1; k++) { | |||||
| ranges[i].pci <<= 32; | |||||
| ranges[i].pci |= base_ranges[j++]; | |||||
| } | |||||
| ranges[i].host = 0; | |||||
| for (k = 0; k < host_address_cells; k++) { | |||||
| ranges[i].host <<= 32; | |||||
| ranges[i].host |= base_ranges[j++]; | |||||
| } | |||||
| ranges[i].size = 0; | |||||
| for (k = 0; k < size_cells; k++) { | |||||
| ranges[i].size <<= 32; | |||||
| ranges[i].size |= base_ranges[j++]; | |||||
| } | |||||
| } | |||||
| free(base_ranges, M_DEVBUF); | |||||
| return (nranges); | |||||
| } | |||||