Factor out MI portions of the PowerPC nexus device into /sys/dev/ofw. The
sparc64 driver will be modified to use this shortly.
This commit is contained in:
Nathan Whitehorn
parent
e3bb91c23f
commit
a8126ae500
@ -46,6 +46,7 @@ dev/ofw/ofw_bus_subr.c optional aim
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dev/ofw/ofw_console.c optional aim
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dev/ofw/ofw_disk.c optional ofwd aim
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dev/ofw/ofw_iicbus.c optional iicbus aim
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dev/ofw/ofw_nexus.c optional aim | fdt
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dev/ofw/ofw_standard.c optional aim powerpc
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dev/powermac_nvram/powermac_nvram.c optional powermac_nvram powermac
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dev/quicc/quicc_bfe_fdt.c optional quicc mpc85xx
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512
sys/dev/ofw/ofw_nexus.c
Normal file
512
sys/dev/ofw/ofw_nexus.c
Normal file
@ -0,0 +1,512 @@
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/*-
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* Copyright 1998 Massachusetts Institute of Technology
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* Copyright 2001 by Thomas Moestl <tmm@FreeBSD.org>.
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* Copyright 2006 by Marius Strobl <marius@FreeBSD.org>.
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* All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby
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* granted, provided that both the above copyright notice and this
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* permission notice appear in all copies, that both the above
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* copyright notice and this permission notice appear in all
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* supporting documentation, and that the name of M.I.T. not be used
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* in advertising or publicity pertaining to distribution of the
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* software without specific, written prior permission. M.I.T. makes
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* no representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied
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* warranty.
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*
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* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
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* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
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* SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: FreeBSD: src/sys/i386/i386/nexus.c,v 1.43 2001/02/09
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/pcpu.h>
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#include <sys/rman.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <dev/ofw/ofw_nexus.h>
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#include <dev/ofw/openfirm.h>
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#include <machine/bus.h>
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#include <machine/intr_machdep.h>
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#include <machine/resource.h>
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/*
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* The nexus (which is a pseudo-bus actually) iterates over the nodes that
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* hang from the Open Firmware root node and adds them as devices to this bus
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* (except some special nodes which are excluded) so that drivers can be
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* attached to them.
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*
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* Additionally, interrupt setup/teardown and some resource management are
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* done at this level.
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*
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*/
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struct nexus_devinfo {
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struct ofw_bus_devinfo ndi_obdinfo;
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struct resource_list ndi_rl;
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};
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static device_probe_t nexus_probe;
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static device_attach_t nexus_attach;
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static bus_print_child_t nexus_print_child;
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static bus_add_child_t nexus_add_child;
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static bus_probe_nomatch_t nexus_probe_nomatch;
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static bus_alloc_resource_t nexus_alloc_resource;
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static bus_adjust_resource_t nexus_adjust_resource;
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static bus_release_resource_t nexus_release_resource;
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static bus_get_resource_list_t nexus_get_resource_list;
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static ofw_bus_get_devinfo_t nexus_get_devinfo;
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static int nexus_inlist(const char *, const char *const *);
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static struct nexus_devinfo * nexus_setup_dinfo(device_t, phandle_t);
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static void nexus_destroy_dinfo(struct nexus_devinfo *);
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static int nexus_print_res(struct nexus_devinfo *);
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static device_method_t nexus_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, nexus_probe),
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DEVMETHOD(device_attach, nexus_attach),
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DEVMETHOD(device_detach, bus_generic_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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/* Bus interface */
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DEVMETHOD(bus_print_child, nexus_print_child),
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DEVMETHOD(bus_probe_nomatch, nexus_probe_nomatch),
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DEVMETHOD(bus_read_ivar, bus_generic_read_ivar),
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DEVMETHOD(bus_write_ivar, bus_generic_write_ivar),
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DEVMETHOD(bus_add_child, nexus_add_child),
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DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
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DEVMETHOD(bus_alloc_resource, nexus_alloc_resource),
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DEVMETHOD(bus_adjust_resource, nexus_adjust_resource),
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DEVMETHOD(bus_release_resource, nexus_release_resource),
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DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource),
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DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
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DEVMETHOD(bus_get_resource_list, nexus_get_resource_list),
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/* ofw_bus interface */
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DEVMETHOD(ofw_bus_get_devinfo, nexus_get_devinfo),
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DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
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DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
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DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
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DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
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DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
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DEVMETHOD_END
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};
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DEFINE_CLASS_0(ofw_nexus, ofw_nexus_driver, nexus_methods,
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sizeof(struct ofw_nexus_softc));
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MODULE_VERSION(ofw_nexus, 1);
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static const char *const nexus_excl_name[] = {
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"FJSV,system",
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"aliases",
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"associations",
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"chosen",
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"cmp",
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"counter-timer", /* No separate device; handled by psycho/sbus */
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"failsafe",
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"memory",
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"openprom",
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"options",
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"packages",
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"physical-memory",
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"rsc",
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"sgcn",
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"todsg",
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"virtual-memory",
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NULL
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};
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static const char *const nexus_excl_type[] = {
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"core",
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"cpu",
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NULL
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};
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static int
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nexus_inlist(const char *name, const char *const *list)
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{
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int i;
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if (name == NULL)
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return (0);
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for (i = 0; list[i] != NULL; i++)
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if (strcmp(name, list[i]) == 0)
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return (1);
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return (0);
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}
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#define NEXUS_EXCLUDED(name, type) \
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(nexus_inlist((name), nexus_excl_name) || \
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((type) != NULL && nexus_inlist((type), nexus_excl_type)))
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static int
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nexus_probe(device_t dev)
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{
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/* Nexus does always match. */
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device_set_desc(dev, "Open Firmware Nexus device");
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return (0);
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}
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static int
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nexus_attach(device_t dev)
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{
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struct nexus_devinfo *ndi;
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struct ofw_nexus_softc *sc;
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device_t cdev;
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phandle_t node;
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sc = device_get_softc(dev);
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if (strcmp(device_get_name(device_get_parent(dev)), "root") == 0) {
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node = OF_peer(0);
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sc->sc_intr_rman.rm_type = RMAN_ARRAY;
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sc->sc_intr_rman.rm_descr = "Interrupts";
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sc->sc_mem_rman.rm_type = RMAN_ARRAY;
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sc->sc_mem_rman.rm_descr = "Device Memory";
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if (rman_init(&sc->sc_intr_rman) != 0 ||
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rman_init(&sc->sc_mem_rman) != 0 ||
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rman_manage_region(&sc->sc_intr_rman, 0, ~0) != 0 ||
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rman_manage_region(&sc->sc_mem_rman, 0, BUS_SPACE_MAXADDR)
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!= 0)
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panic("%s: failed to set up rmans.", __func__);
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} else
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node = ofw_bus_get_node(dev);
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/*
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* Allow devices to identify.
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*/
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bus_generic_probe(dev);
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/*
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* If no Open Firmware, bail early
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*/
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if (node == -1)
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return (bus_generic_attach(dev));
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/*
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* Some important numbers
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*/
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sc->acells = 2;
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OF_getencprop(node, "#address-cells", &sc->acells, sizeof(sc->acells));
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sc->scells = 1;
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OF_getencprop(node, "#size-cells", &sc->scells, sizeof(sc->scells));
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/*
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* Now walk the OFW tree and attach top-level devices.
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*/
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for (node = OF_child(node); node > 0; node = OF_peer(node)) {
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if ((ndi = nexus_setup_dinfo(dev, node)) == NULL)
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continue;
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cdev = device_add_child(dev, NULL, -1);
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if (cdev == NULL) {
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device_printf(dev, "<%s>: device_add_child failed\n",
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ndi->ndi_obdinfo.obd_name);
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nexus_destroy_dinfo(ndi);
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continue;
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}
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device_set_ivars(cdev, ndi);
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}
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return (bus_generic_attach(dev));
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}
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static device_t
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nexus_add_child(device_t dev, u_int order, const char *name, int unit)
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{
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device_t cdev;
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struct nexus_devinfo *ndi;
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cdev = device_add_child_ordered(dev, order, name, unit);
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if (cdev == NULL)
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return (NULL);
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ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO);
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ndi->ndi_obdinfo.obd_node = -1;
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resource_list_init(&ndi->ndi_rl);
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device_set_ivars(cdev, ndi);
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return (cdev);
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}
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static int
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nexus_print_child(device_t bus, device_t child)
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{
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int rv;
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rv = bus_print_child_header(bus, child);
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rv += nexus_print_res(device_get_ivars(child));
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rv += bus_print_child_footer(bus, child);
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return (rv);
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}
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static void
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nexus_probe_nomatch(device_t bus, device_t child)
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{
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const char *name, *type;
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if (!bootverbose)
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return;
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name = ofw_bus_get_name(child);
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type = ofw_bus_get_type(child);
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device_printf(bus, "<%s>",
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name != NULL ? name : "unknown");
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nexus_print_res(device_get_ivars(child));
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printf(" type %s (no driver attached)\n",
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type != NULL ? type : "unknown");
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}
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static struct resource *
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nexus_alloc_resource(device_t bus, device_t child, int type, int *rid,
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u_long start, u_long end, u_long count, u_int flags)
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{
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struct ofw_nexus_softc *sc;
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struct rman *rm;
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struct resource *rv;
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struct resource_list_entry *rle;
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device_t nexus;
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int isdefault, passthrough;
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isdefault = (start == 0UL && end == ~0UL);
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passthrough = (device_get_parent(child) != bus);
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nexus = bus;
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while (strcmp(device_get_name(device_get_parent(nexus)), "root") != 0)
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nexus = device_get_parent(nexus);
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sc = device_get_softc(nexus);
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rle = NULL;
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if (!passthrough && isdefault) {
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rle = resource_list_find(BUS_GET_RESOURCE_LIST(bus, child),
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type, *rid);
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if (rle == NULL)
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return (NULL);
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if (rle->res != NULL)
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panic("%s: resource entry is busy", __func__);
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start = rle->start;
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count = ulmax(count, rle->count);
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end = ulmax(rle->end, start + count - 1);
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}
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switch (type) {
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case SYS_RES_IRQ:
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rm = &sc->sc_intr_rman;
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break;
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case SYS_RES_MEMORY:
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rm = &sc->sc_mem_rman;
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break;
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default:
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return (NULL);
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}
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rv = rman_reserve_resource(rm, start, end, count, flags & ~RF_ACTIVE,
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child);
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if (rv == NULL)
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return (NULL);
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rman_set_rid(rv, *rid);
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if ((flags & RF_ACTIVE) != 0 && bus_activate_resource(child, type,
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*rid, rv) != 0) {
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rman_release_resource(rv);
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return (NULL);
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}
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if (!passthrough && rle != NULL) {
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rle->res = rv;
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rle->start = rman_get_start(rv);
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rle->end = rman_get_end(rv);
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rle->count = rle->end - rle->start + 1;
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}
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return (rv);
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}
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static int
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nexus_adjust_resource(device_t bus, device_t child __unused, int type,
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struct resource *r, u_long start, u_long end)
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{
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struct ofw_nexus_softc *sc;
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struct rman *rm;
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device_t nexus;
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nexus = bus;
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while (strcmp(device_get_name(device_get_parent(nexus)), "root") != 0)
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nexus = device_get_parent(nexus);
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sc = device_get_softc(nexus);
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switch (type) {
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case SYS_RES_IRQ:
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rm = &sc->sc_intr_rman;
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break;
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case SYS_RES_MEMORY:
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rm = &sc->sc_mem_rman;
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break;
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default:
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return (EINVAL);
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}
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if (rm == NULL)
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return (ENXIO);
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if (rman_is_region_manager(r, rm) == 0)
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return (EINVAL);
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return (rman_adjust_resource(r, start, end));
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}
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static int
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nexus_release_resource(device_t bus __unused, device_t child, int type,
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int rid, struct resource *r)
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{
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int error;
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if ((rman_get_flags(r) & RF_ACTIVE) != 0) {
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error = bus_deactivate_resource(child, type, rid, r);
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if (error)
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return (error);
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}
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return (rman_release_resource(r));
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}
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static struct resource_list *
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nexus_get_resource_list(device_t bus __unused, device_t child)
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{
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struct nexus_devinfo *ndi;
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ndi = device_get_ivars(child);
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return (&ndi->ndi_rl);
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}
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static const struct ofw_bus_devinfo *
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nexus_get_devinfo(device_t bus __unused, device_t child)
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{
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struct nexus_devinfo *ndi;
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ndi = device_get_ivars(child);
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return (&ndi->ndi_obdinfo);
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}
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static struct nexus_devinfo *
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nexus_setup_dinfo(device_t dev, phandle_t node)
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{
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struct ofw_nexus_softc *sc;
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struct nexus_devinfo *ndi;
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uint32_t *reg, *intr, icells;
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uint64_t phys, size;
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phandle_t iparent;
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int i, j;
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int nintr;
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int nreg;
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sc = device_get_softc(dev);
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ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO);
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if (ofw_bus_gen_setup_devinfo(&ndi->ndi_obdinfo, node) != 0) {
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free(ndi, M_DEVBUF);
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return (NULL);
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}
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if (NEXUS_EXCLUDED(ndi->ndi_obdinfo.obd_name,
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ndi->ndi_obdinfo.obd_type)) {
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ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo);
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free(ndi, M_DEVBUF);
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return (NULL);
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}
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||||
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resource_list_init(&ndi->ndi_rl);
|
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nreg = OF_getencprop_alloc(node, "reg", sizeof(*reg), (void **)®);
|
||||
if (nreg == -1)
|
||||
nreg = 0;
|
||||
if (nreg % (sc->acells + sc->scells) != 0) {
|
||||
if (bootverbose)
|
||||
device_printf(dev, "Malformed reg property on <%s>\n",
|
||||
ndi->ndi_obdinfo.obd_name);
|
||||
nreg = 0;
|
||||
}
|
||||
|
||||
for (i = 0; i < nreg; i += sc->acells + sc->scells) {
|
||||
phys = size = 0;
|
||||
for (j = 0; j < sc->acells; j++) {
|
||||
phys <<= 32;
|
||||
phys |= reg[i + j];
|
||||
}
|
||||
for (j = 0; j < sc->scells; j++) {
|
||||
size <<= 32;
|
||||
size |= reg[i + sc->acells + j];
|
||||
}
|
||||
/* Skip the dummy reg property of glue devices like ssm(4). */
|
||||
if (size != 0)
|
||||
resource_list_add(&ndi->ndi_rl, SYS_RES_MEMORY, i,
|
||||
phys, phys + size - 1, size);
|
||||
}
|
||||
free(reg, M_OFWPROP);
|
||||
|
||||
nintr = OF_getencprop_alloc(node, "interrupts", sizeof(*intr),
|
||||
(void **)&intr);
|
||||
if (nintr > 0) {
|
||||
iparent = 0;
|
||||
OF_searchprop(node, "interrupt-parent", &iparent,
|
||||
sizeof(iparent));
|
||||
OF_searchprop(iparent, "#interrupt-cells", &icells,
|
||||
sizeof(icells));
|
||||
for (i = 0; i < nintr; i+= icells) {
|
||||
intr[i] = ofw_bus_map_intr(dev, iparent, intr[i]);
|
||||
resource_list_add(&ndi->ndi_rl, SYS_RES_IRQ, i, intr[i],
|
||||
intr[i], 1);
|
||||
if (icells > 1)
|
||||
ofw_bus_config_intr(dev, intr[i], intr[i+1]);
|
||||
}
|
||||
free(intr, M_OFWPROP);
|
||||
}
|
||||
|
||||
return (ndi);
|
||||
}
|
||||
|
||||
static void
|
||||
nexus_destroy_dinfo(struct nexus_devinfo *ndi)
|
||||
{
|
||||
|
||||
resource_list_free(&ndi->ndi_rl);
|
||||
ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo);
|
||||
free(ndi, M_DEVBUF);
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_print_res(struct nexus_devinfo *ndi)
|
||||
{
|
||||
int rv;
|
||||
|
||||
rv = 0;
|
||||
rv += resource_list_print_type(&ndi->ndi_rl, "mem", SYS_RES_MEMORY,
|
||||
"%#lx");
|
||||
rv += resource_list_print_type(&ndi->ndi_rl, "irq", SYS_RES_IRQ,
|
||||
"%ld");
|
||||
return (rv);
|
||||
}
|
||||
|
||||
40
sys/dev/ofw/ofw_nexus.h
Normal file
40
sys/dev/ofw/ofw_nexus.h
Normal file
@ -0,0 +1,40 @@
|
||||
/*-
|
||||
* Copyright (c) 2010 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.
|
||||
* 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.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#ifndef _OFW_NEXUS_H_
|
||||
#define _OFW_NEXUS_H_
|
||||
|
||||
struct ofw_nexus_softc {
|
||||
uint32_t acells, scells;
|
||||
struct rman sc_intr_rman;
|
||||
struct rman sc_mem_rman;
|
||||
};
|
||||
|
||||
DECLARE_CLASS(ofw_nexus_driver);
|
||||
|
||||
#endif /* _OFW_NEXUS_H_ */
|
||||
@ -49,6 +49,7 @@ __FBSDID("$FreeBSD$");
|
||||
|
||||
#include <dev/ofw/ofw_bus.h>
|
||||
#include <dev/ofw/ofw_bus_subr.h>
|
||||
#include <dev/ofw/ofw_nexus.h>
|
||||
#include <dev/ofw/openfirm.h>
|
||||
|
||||
#include <machine/bus.h>
|
||||
@ -63,86 +64,31 @@ __FBSDID("$FreeBSD$");
|
||||
*
|
||||
* Additionally, interrupt setup/teardown and some resource management are
|
||||
* done at this level.
|
||||
*
|
||||
* Maybe this code should get into dev/ofw to some extent, as some of it should
|
||||
* work for all Open Firmware based machines...
|
||||
*/
|
||||
|
||||
struct nexus_devinfo {
|
||||
struct ofw_bus_devinfo ndi_obdinfo;
|
||||
struct resource_list ndi_rl;
|
||||
};
|
||||
|
||||
struct nexus_softc {
|
||||
uint32_t acells, scells;
|
||||
struct rman sc_intr_rman;
|
||||
struct rman sc_mem_rman;
|
||||
};
|
||||
|
||||
static device_probe_t nexus_probe;
|
||||
static device_attach_t nexus_attach;
|
||||
static bus_print_child_t nexus_print_child;
|
||||
static bus_add_child_t nexus_add_child;
|
||||
static bus_probe_nomatch_t nexus_probe_nomatch;
|
||||
static bus_setup_intr_t nexus_setup_intr;
|
||||
static bus_teardown_intr_t nexus_teardown_intr;
|
||||
static bus_alloc_resource_t nexus_alloc_resource;
|
||||
static bus_activate_resource_t nexus_activate_resource;
|
||||
static bus_deactivate_resource_t nexus_deactivate_resource;
|
||||
static bus_adjust_resource_t nexus_adjust_resource;
|
||||
static bus_release_resource_t nexus_release_resource;
|
||||
static bus_get_resource_list_t nexus_get_resource_list;
|
||||
#ifdef SMP
|
||||
static bus_bind_intr_t nexus_bind_intr;
|
||||
#endif
|
||||
static bus_config_intr_t nexus_config_intr;
|
||||
static ofw_bus_map_intr_t nexus_ofw_map_intr;
|
||||
static ofw_bus_config_intr_t nexus_ofw_config_intr;
|
||||
static ofw_bus_get_devinfo_t nexus_get_devinfo;
|
||||
|
||||
static int nexus_inlist(const char *, const char *const *);
|
||||
static struct nexus_devinfo * nexus_setup_dinfo(device_t, phandle_t);
|
||||
static void nexus_destroy_dinfo(struct nexus_devinfo *);
|
||||
static int nexus_print_res(struct nexus_devinfo *);
|
||||
|
||||
static device_method_t nexus_methods[] = {
|
||||
/* Device interface */
|
||||
DEVMETHOD(device_probe, nexus_probe),
|
||||
DEVMETHOD(device_attach, nexus_attach),
|
||||
DEVMETHOD(device_detach, bus_generic_detach),
|
||||
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
||||
DEVMETHOD(device_suspend, bus_generic_suspend),
|
||||
DEVMETHOD(device_resume, bus_generic_resume),
|
||||
|
||||
/* Bus interface */
|
||||
DEVMETHOD(bus_print_child, nexus_print_child),
|
||||
DEVMETHOD(bus_probe_nomatch, nexus_probe_nomatch),
|
||||
DEVMETHOD(bus_read_ivar, bus_generic_read_ivar),
|
||||
DEVMETHOD(bus_write_ivar, bus_generic_write_ivar),
|
||||
DEVMETHOD(bus_add_child, nexus_add_child),
|
||||
DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
|
||||
DEVMETHOD(bus_alloc_resource, nexus_alloc_resource),
|
||||
DEVMETHOD(bus_activate_resource, nexus_activate_resource),
|
||||
DEVMETHOD(bus_deactivate_resource, nexus_deactivate_resource),
|
||||
DEVMETHOD(bus_adjust_resource, nexus_adjust_resource),
|
||||
DEVMETHOD(bus_release_resource, nexus_release_resource),
|
||||
DEVMETHOD(bus_setup_intr, nexus_setup_intr),
|
||||
DEVMETHOD(bus_teardown_intr, nexus_teardown_intr),
|
||||
DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource),
|
||||
DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
|
||||
DEVMETHOD(bus_get_resource_list, nexus_get_resource_list),
|
||||
#ifdef SMP
|
||||
DEVMETHOD(bus_bind_intr, nexus_bind_intr),
|
||||
#endif
|
||||
DEVMETHOD(bus_config_intr, nexus_config_intr),
|
||||
|
||||
/* ofw_bus interface */
|
||||
DEVMETHOD(ofw_bus_get_devinfo, nexus_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(ofw_bus_map_intr, nexus_ofw_map_intr),
|
||||
DEVMETHOD(ofw_bus_config_intr, nexus_ofw_config_intr),
|
||||
|
||||
@ -151,176 +97,12 @@ static device_method_t nexus_methods[] = {
|
||||
|
||||
static devclass_t nexus_devclass;
|
||||
|
||||
DEFINE_CLASS_0(nexus, nexus_driver, nexus_methods, sizeof(struct nexus_softc));
|
||||
DEFINE_CLASS_1(nexus, nexus_driver, nexus_methods,
|
||||
sizeof(struct ofw_nexus_softc), ofw_nexus_driver);
|
||||
EARLY_DRIVER_MODULE(nexus, root, nexus_driver, nexus_devclass, 0, 0,
|
||||
BUS_PASS_BUS);
|
||||
MODULE_VERSION(nexus, 1);
|
||||
|
||||
static const char *const nexus_excl_name[] = {
|
||||
"FJSV,system",
|
||||
"aliases",
|
||||
"associations",
|
||||
"chosen",
|
||||
"cmp",
|
||||
"counter-timer", /* No separate device; handled by psycho/sbus */
|
||||
"failsafe",
|
||||
"memory",
|
||||
"openprom",
|
||||
"options",
|
||||
"packages",
|
||||
"physical-memory",
|
||||
"rsc",
|
||||
"sgcn",
|
||||
"todsg",
|
||||
"virtual-memory",
|
||||
NULL
|
||||
};
|
||||
|
||||
static const char *const nexus_excl_type[] = {
|
||||
"core",
|
||||
"cpu",
|
||||
NULL
|
||||
};
|
||||
|
||||
extern struct bus_space_tag nexus_bustag;
|
||||
extern struct bus_dma_tag nexus_dmatag;
|
||||
|
||||
static int
|
||||
nexus_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);
|
||||
}
|
||||
|
||||
#define NEXUS_EXCLUDED(name, type) \
|
||||
(nexus_inlist((name), nexus_excl_name) || \
|
||||
((type) != NULL && nexus_inlist((type), nexus_excl_type)))
|
||||
|
||||
static int
|
||||
nexus_probe(device_t dev)
|
||||
{
|
||||
|
||||
/* Nexus does always match. */
|
||||
device_set_desc(dev, "Open Firmware Nexus device");
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_attach(device_t dev)
|
||||
{
|
||||
struct nexus_devinfo *ndi;
|
||||
struct nexus_softc *sc;
|
||||
device_t cdev;
|
||||
phandle_t node;
|
||||
|
||||
sc = device_get_softc(dev);
|
||||
|
||||
if (strcmp(device_get_name(device_get_parent(dev)), "root") == 0) {
|
||||
node = OF_peer(0);
|
||||
|
||||
sc->sc_intr_rman.rm_type = RMAN_ARRAY;
|
||||
sc->sc_intr_rman.rm_descr = "Interrupts";
|
||||
sc->sc_mem_rman.rm_type = RMAN_ARRAY;
|
||||
sc->sc_mem_rman.rm_descr = "Device Memory";
|
||||
if (rman_init(&sc->sc_intr_rman) != 0 ||
|
||||
rman_init(&sc->sc_mem_rman) != 0 ||
|
||||
rman_manage_region(&sc->sc_intr_rman, 0, ~0) != 0 ||
|
||||
rman_manage_region(&sc->sc_mem_rman, 0, BUS_SPACE_MAXADDR)
|
||||
!= 0)
|
||||
panic("%s: failed to set up rmans.", __func__);
|
||||
} else
|
||||
node = ofw_bus_get_node(dev);
|
||||
|
||||
/*
|
||||
* Allow devices to identify.
|
||||
*/
|
||||
bus_generic_probe(dev);
|
||||
|
||||
/*
|
||||
* If no Open Firmware, bail early
|
||||
*/
|
||||
if (node == -1)
|
||||
return (bus_generic_attach(dev));
|
||||
|
||||
/*
|
||||
* Some important numbers
|
||||
*/
|
||||
sc->acells = 2;
|
||||
OF_getencprop(node, "#address-cells", &sc->acells, sizeof(sc->acells));
|
||||
sc->scells = 1;
|
||||
OF_getencprop(node, "#size-cells", &sc->scells, sizeof(sc->scells));
|
||||
|
||||
/*
|
||||
* Now walk the OFW tree and attach top-level devices.
|
||||
*/
|
||||
for (node = OF_child(node); node > 0; node = OF_peer(node)) {
|
||||
if ((ndi = nexus_setup_dinfo(dev, node)) == NULL)
|
||||
continue;
|
||||
cdev = device_add_child(dev, NULL, -1);
|
||||
if (cdev == NULL) {
|
||||
device_printf(dev, "<%s>: device_add_child failed\n",
|
||||
ndi->ndi_obdinfo.obd_name);
|
||||
nexus_destroy_dinfo(ndi);
|
||||
continue;
|
||||
}
|
||||
device_set_ivars(cdev, ndi);
|
||||
}
|
||||
return (bus_generic_attach(dev));
|
||||
}
|
||||
|
||||
static device_t
|
||||
nexus_add_child(device_t dev, u_int order, const char *name, int unit)
|
||||
{
|
||||
device_t cdev;
|
||||
struct nexus_devinfo *ndi;
|
||||
|
||||
cdev = device_add_child_ordered(dev, order, name, unit);
|
||||
if (cdev == NULL)
|
||||
return (NULL);
|
||||
|
||||
ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO);
|
||||
ndi->ndi_obdinfo.obd_node = -1;
|
||||
resource_list_init(&ndi->ndi_rl);
|
||||
device_set_ivars(cdev, ndi);
|
||||
|
||||
return (cdev);
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_print_child(device_t bus, device_t child)
|
||||
{
|
||||
int rv;
|
||||
|
||||
rv = bus_print_child_header(bus, child);
|
||||
rv += nexus_print_res(device_get_ivars(child));
|
||||
rv += bus_print_child_footer(bus, child);
|
||||
return (rv);
|
||||
}
|
||||
|
||||
static void
|
||||
nexus_probe_nomatch(device_t bus, device_t child)
|
||||
{
|
||||
const char *name, *type;
|
||||
|
||||
if (!bootverbose)
|
||||
return;
|
||||
|
||||
name = ofw_bus_get_name(child);
|
||||
type = ofw_bus_get_type(child);
|
||||
|
||||
device_printf(bus, "<%s>",
|
||||
name != NULL ? name : "unknown");
|
||||
nexus_print_res(device_get_ivars(child));
|
||||
printf(" type %s (no driver attached)\n",
|
||||
type != NULL ? type : "unknown");
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_setup_intr(device_t bus __unused, device_t child, struct resource *r,
|
||||
int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg,
|
||||
@ -389,70 +171,6 @@ nexus_ofw_config_intr(device_t dev, device_t child, int irq, int sense)
|
||||
INTR_POLARITY_LOW));
|
||||
}
|
||||
|
||||
static struct resource *
|
||||
nexus_alloc_resource(device_t bus, device_t child, int type, int *rid,
|
||||
u_long start, u_long end, u_long count, u_int flags)
|
||||
{
|
||||
struct nexus_softc *sc;
|
||||
struct rman *rm;
|
||||
struct resource *rv;
|
||||
struct resource_list_entry *rle;
|
||||
device_t nexus;
|
||||
int isdefault, passthrough;
|
||||
|
||||
isdefault = (start == 0UL && end == ~0UL);
|
||||
passthrough = (device_get_parent(child) != bus);
|
||||
nexus = bus;
|
||||
while (strcmp(device_get_name(device_get_parent(nexus)), "root") != 0)
|
||||
nexus = device_get_parent(nexus);
|
||||
sc = device_get_softc(nexus);
|
||||
rle = NULL;
|
||||
|
||||
if (!passthrough && isdefault) {
|
||||
rle = resource_list_find(BUS_GET_RESOURCE_LIST(bus, child),
|
||||
type, *rid);
|
||||
if (rle == NULL)
|
||||
return (NULL);
|
||||
if (rle->res != NULL)
|
||||
panic("%s: resource entry is busy", __func__);
|
||||
start = rle->start;
|
||||
count = ulmax(count, rle->count);
|
||||
end = ulmax(rle->end, start + count - 1);
|
||||
}
|
||||
|
||||
switch (type) {
|
||||
case SYS_RES_IRQ:
|
||||
rm = &sc->sc_intr_rman;
|
||||
break;
|
||||
case SYS_RES_MEMORY:
|
||||
rm = &sc->sc_mem_rman;
|
||||
break;
|
||||
default:
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
rv = rman_reserve_resource(rm, start, end, 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) != 0) {
|
||||
rman_release_resource(rv);
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
if (!passthrough && rle != NULL) {
|
||||
rle->res = rv;
|
||||
rle->start = rman_get_start(rv);
|
||||
rle->end = rman_get_end(rv);
|
||||
rle->count = rle->end - rle->start + 1;
|
||||
}
|
||||
|
||||
return (rv);
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_activate_resource(device_t bus __unused, device_t child __unused,
|
||||
int type, int rid __unused, struct resource *r)
|
||||
@ -495,161 +213,3 @@ nexus_deactivate_resource(device_t bus __unused, device_t child __unused,
|
||||
return (rman_deactivate_resource(r));
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_adjust_resource(device_t bus, device_t child __unused, int type,
|
||||
struct resource *r, u_long start, u_long end)
|
||||
{
|
||||
struct nexus_softc *sc;
|
||||
struct rman *rm;
|
||||
device_t nexus;
|
||||
|
||||
nexus = bus;
|
||||
while (strcmp(device_get_name(device_get_parent(nexus)), "root") != 0)
|
||||
nexus = device_get_parent(nexus);
|
||||
sc = device_get_softc(nexus);
|
||||
switch (type) {
|
||||
case SYS_RES_IRQ:
|
||||
rm = &sc->sc_intr_rman;
|
||||
break;
|
||||
case SYS_RES_MEMORY:
|
||||
rm = &sc->sc_mem_rman;
|
||||
break;
|
||||
default:
|
||||
return (EINVAL);
|
||||
}
|
||||
if (rm == NULL)
|
||||
return (ENXIO);
|
||||
if (rman_is_region_manager(r, rm) == 0)
|
||||
return (EINVAL);
|
||||
return (rman_adjust_resource(r, start, end));
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_release_resource(device_t bus __unused, device_t child, int type,
|
||||
int rid, struct resource *r)
|
||||
{
|
||||
int error;
|
||||
|
||||
if ((rman_get_flags(r) & RF_ACTIVE) != 0) {
|
||||
error = bus_deactivate_resource(child, type, rid, r);
|
||||
if (error)
|
||||
return (error);
|
||||
}
|
||||
return (rman_release_resource(r));
|
||||
}
|
||||
|
||||
static struct resource_list *
|
||||
nexus_get_resource_list(device_t bus __unused, device_t child)
|
||||
{
|
||||
struct nexus_devinfo *ndi;
|
||||
|
||||
ndi = device_get_ivars(child);
|
||||
return (&ndi->ndi_rl);
|
||||
}
|
||||
|
||||
static const struct ofw_bus_devinfo *
|
||||
nexus_get_devinfo(device_t bus __unused, device_t child)
|
||||
{
|
||||
struct nexus_devinfo *ndi;
|
||||
|
||||
ndi = device_get_ivars(child);
|
||||
return (&ndi->ndi_obdinfo);
|
||||
}
|
||||
|
||||
static struct nexus_devinfo *
|
||||
nexus_setup_dinfo(device_t dev, phandle_t node)
|
||||
{
|
||||
struct nexus_softc *sc;
|
||||
struct nexus_devinfo *ndi;
|
||||
uint32_t *reg, *intr, icells;
|
||||
uint64_t phys, size;
|
||||
phandle_t iparent;
|
||||
int i, j;
|
||||
int nintr;
|
||||
int nreg;
|
||||
|
||||
sc = device_get_softc(dev);
|
||||
|
||||
ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO);
|
||||
if (ofw_bus_gen_setup_devinfo(&ndi->ndi_obdinfo, node) != 0) {
|
||||
free(ndi, M_DEVBUF);
|
||||
return (NULL);
|
||||
}
|
||||
if (NEXUS_EXCLUDED(ndi->ndi_obdinfo.obd_name,
|
||||
ndi->ndi_obdinfo.obd_type)) {
|
||||
ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo);
|
||||
free(ndi, M_DEVBUF);
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
resource_list_init(&ndi->ndi_rl);
|
||||
nreg = OF_getencprop_alloc(node, "reg", sizeof(*reg), (void **)®);
|
||||
if (nreg == -1)
|
||||
nreg = 0;
|
||||
if (nreg % (sc->acells + sc->scells) != 0) {
|
||||
if (bootverbose)
|
||||
device_printf(dev, "Malformed reg property on <%s>\n",
|
||||
ndi->ndi_obdinfo.obd_name);
|
||||
nreg = 0;
|
||||
}
|
||||
|
||||
for (i = 0; i < nreg; i += sc->acells + sc->scells) {
|
||||
phys = size = 0;
|
||||
for (j = 0; j < sc->acells; j++) {
|
||||
phys <<= 32;
|
||||
phys |= reg[i + j];
|
||||
}
|
||||
for (j = 0; j < sc->scells; j++) {
|
||||
size <<= 32;
|
||||
size |= reg[i + sc->acells + j];
|
||||
}
|
||||
/* Skip the dummy reg property of glue devices like ssm(4). */
|
||||
if (size != 0)
|
||||
resource_list_add(&ndi->ndi_rl, SYS_RES_MEMORY, i,
|
||||
phys, phys + size - 1, size);
|
||||
}
|
||||
free(reg, M_OFWPROP);
|
||||
|
||||
nintr = OF_getencprop_alloc(node, "interrupts", sizeof(*intr),
|
||||
(void **)&intr);
|
||||
if (nintr > 0) {
|
||||
iparent = 0;
|
||||
OF_searchprop(node, "interrupt-parent", &iparent,
|
||||
sizeof(iparent));
|
||||
OF_searchprop(iparent, "#interrupt-cells", &icells,
|
||||
sizeof(icells));
|
||||
for (i = 0; i < nintr; i+= icells) {
|
||||
intr[i] = ofw_bus_map_intr(dev, iparent, intr[i]);
|
||||
resource_list_add(&ndi->ndi_rl, SYS_RES_IRQ, i, intr[i],
|
||||
intr[i], 1);
|
||||
if (icells > 1)
|
||||
ofw_bus_config_intr(dev, intr[i], intr[i+1]);
|
||||
}
|
||||
free(intr, M_OFWPROP);
|
||||
}
|
||||
|
||||
return (ndi);
|
||||
}
|
||||
|
||||
static void
|
||||
nexus_destroy_dinfo(struct nexus_devinfo *ndi)
|
||||
{
|
||||
|
||||
resource_list_free(&ndi->ndi_rl);
|
||||
ofw_bus_gen_destroy_devinfo(&ndi->ndi_obdinfo);
|
||||
free(ndi, M_DEVBUF);
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_print_res(struct nexus_devinfo *ndi)
|
||||
{
|
||||
int rv;
|
||||
|
||||
rv = 0;
|
||||
rv += resource_list_print_type(&ndi->ndi_rl, "mem", SYS_RES_MEMORY,
|
||||
"%#lx");
|
||||
rv += resource_list_print_type(&ndi->ndi_rl, "irq", SYS_RES_IRQ,
|
||||
"%ld");
|
||||
return (rv);
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user