Catch up on 6 years of improvements in Open Firmware nexus devices by
importing the sparc64 one. At least 90% of this code is MI and will be moved into /sys/dev/ofw at some point in the future.
This commit is contained in:
Nathan Whitehorn
parent
11dc3f01ec
commit
7a759c54e8
@ -1,5 +1,8 @@
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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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@ -25,30 +28,6 @@
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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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/*-
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* Copyright 2001 by Thomas Moestl <tmm@FreeBSD.org>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT 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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@ -58,81 +37,71 @@ __FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/cons.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/openfirm.h>
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#include <machine/bus.h>
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#include <machine/frame.h>
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#include <machine/intr_machdep.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include "ofw_bus_if.h"
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#include "pic_if.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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* exist in Open Firmware and adds them as devices to this bus so that drivers
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* can be attached to them.
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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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* Maybe this code should get into dev/ofw to some extent, as some of it should
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* work for all Open Firmware based machines...
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*/
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static MALLOC_DEFINE(M_NEXUS, "nexus", "nexus device information");
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struct nexus_devinfo {
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struct ofw_bus_devinfo ndi_ofwinfo;
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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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struct nexus_softc {
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struct rman sc_rman;
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uint32_t acells, scells;
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struct rman sc_intr_rman;
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struct rman sc_mem_rman;
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};
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/*
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* Device interface
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*/
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static int nexus_probe(device_t);
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static int nexus_attach(device_t);
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/*
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* Bus interface
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*/
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static device_t nexus_add_child(device_t, u_int, const char *, int);
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static void nexus_probe_nomatch(device_t, device_t);
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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_setup_intr_t nexus_setup_intr;
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static bus_teardown_intr_t nexus_teardown_intr;
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static bus_alloc_resource_t nexus_alloc_resource;
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static bus_activate_resource_t nexus_activate_resource;
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static bus_deactivate_resource_t nexus_deactivate_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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#ifdef SMP
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static int nexus_bind_intr(device_t dev, device_t child,
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struct resource *irq, int cpu);
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static bus_bind_intr_t nexus_bind_intr;
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#endif
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static int nexus_config_intr(device_t dev, int irq, enum intr_trigger trig,
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enum intr_polarity pol);
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static int nexus_setup_intr(device_t, device_t, struct resource *, int,
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driver_filter_t *, driver_intr_t *, void *, void **);
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static int nexus_teardown_intr(device_t, device_t, struct resource *,
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void *);
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static struct resource *nexus_alloc_resource(device_t, device_t, int, int *,
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u_long, u_long, u_long, u_int);
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static int nexus_activate_resource(device_t, device_t, int, int,
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struct resource *);
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static int nexus_deactivate_resource(device_t, device_t, int, int,
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struct resource *);
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static int nexus_release_resource(device_t, device_t, int, int,
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struct resource *);
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static const struct ofw_bus_devinfo *nexus_get_devinfo(device_t dev,
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device_t child);
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static bus_config_intr_t nexus_config_intr;
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static ofw_bus_get_devinfo_t nexus_get_devinfo;
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/*
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* Local routines
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*/
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static device_t nexus_device_from_node(device_t, phandle_t);
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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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@ -143,22 +112,29 @@ static device_method_t nexus_methods[] = {
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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. Resource management is business of the children... */
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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_probe_nomatch, nexus_probe_nomatch),
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DEVMETHOD(bus_alloc_resource, nexus_alloc_resource),
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DEVMETHOD(bus_activate_resource, nexus_activate_resource),
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DEVMETHOD(bus_deactivate_resource, nexus_deactivate_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_setup_intr, nexus_setup_intr),
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DEVMETHOD(bus_teardown_intr, nexus_teardown_intr),
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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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#ifdef SMP
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DEVMETHOD(bus_bind_intr, nexus_bind_intr),
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#endif
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DEVMETHOD(bus_config_intr, nexus_config_intr),
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DEVMETHOD(bus_alloc_resource, nexus_alloc_resource),
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DEVMETHOD(bus_activate_resource, nexus_activate_resource),
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DEVMETHOD(bus_deactivate_resource, nexus_deactivate_resource),
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DEVMETHOD(bus_release_resource, nexus_release_resource),
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/* OFW bus interface */
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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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@ -169,21 +145,64 @@ static device_method_t nexus_methods[] = {
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DEVMETHOD_END
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};
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static driver_t nexus_driver = {
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"nexus",
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nexus_methods,
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sizeof(struct nexus_softc),
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};
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static devclass_t nexus_devclass;
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DEFINE_CLASS_0(nexus, nexus_driver, nexus_methods, sizeof(struct nexus_softc));
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EARLY_DRIVER_MODULE(nexus, root, nexus_driver, nexus_devclass, 0, 0,
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BUS_PASS_BUS);
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MODULE_VERSION(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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extern struct bus_space_tag nexus_bustag;
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extern struct bus_dma_tag nexus_dmatag;
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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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bus_generic_probe(dev);
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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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@ -191,225 +210,424 @@ nexus_probe(device_t dev)
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static int
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nexus_attach(device_t dev)
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{
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phandle_t root;
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phandle_t child;
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struct nexus_softc *sc;
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u_long start, end;
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struct nexus_devinfo *ndi;
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struct 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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start = 0;
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end = ~0;
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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_rman.rm_start = start;
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sc->sc_rman.rm_end = end;
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sc->sc_rman.rm_type = RMAN_ARRAY;
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sc->sc_rman.rm_descr = "Interrupt request lines";
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if (rman_init(&sc->sc_rman) ||
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rman_manage_region(&sc->sc_rman, start, end))
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panic("nexus_probe IRQ rman");
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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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if ((root = OF_peer(0)) == 0)
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return (bus_generic_attach(dev));
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/*
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* Now walk the OFW tree to locate top-level devices
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* Allow devices to identify.
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*/
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for (child = OF_child(root); child != 0; child = OF_peer(child)) {
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if (child == -1)
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panic("nexus_probe(): OF_child failed.");
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(void)nexus_device_from_node(dev, child);
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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_getprop(node, "#address-cells", &sc->acells, sizeof(sc->acells));
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sc->scells = 1;
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OF_getprop(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 void
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nexus_probe_nomatch(device_t dev, device_t child)
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{
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const char *name, *type;
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name = ofw_bus_get_name(child);
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type = ofw_bus_get_type(child);
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if (name == NULL)
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name = "unknown";
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if (type == NULL)
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type = "(unknown)";
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if (bootverbose)
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device_printf(dev, "<%s>, type %s (no driver attached)\n",
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name, type);
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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 child;
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struct nexus_devinfo *dinfo;
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device_t cdev;
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struct nexus_devinfo *ndi;
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child = device_add_child_ordered(dev, order, name, unit);
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if (child == NULL)
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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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dinfo = malloc(sizeof(struct nexus_devinfo), M_NEXUS, M_NOWAIT|M_ZERO);
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if (dinfo == 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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dinfo->ndi_ofwinfo.obd_node = -1;
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dinfo->ndi_ofwinfo.obd_name = NULL;
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dinfo->ndi_ofwinfo.obd_compat = NULL;
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dinfo->ndi_ofwinfo.obd_type = NULL;
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dinfo->ndi_ofwinfo.obd_model = NULL;
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device_set_ivars(child, dinfo);
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return (child);
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return (cdev);
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}
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static int
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nexus_setup_intr(device_t dev, device_t child, struct resource *res, int flags,
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driver_filter_t *filter, driver_intr_t *ihand, void *arg, void **cookiep)
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nexus_print_child(device_t bus, device_t child)
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{
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int error;
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int rv;
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/* somebody tried to setup an irq that failed to allocate! */
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if (res == NULL)
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panic("nexus_setup_intr: NULL irq resource!");
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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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*cookiep = 0;
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if ((rman_get_flags(res) & RF_SHAREABLE) == 0)
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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));
|
||||
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,
|
||||
void **cookiep)
|
||||
{
|
||||
int error;
|
||||
|
||||
if (r == NULL)
|
||||
panic("%s: NULL interrupt resource!", __func__);
|
||||
|
||||
if ((rman_get_flags(r) & RF_SHAREABLE) == 0)
|
||||
flags |= INTR_EXCL;
|
||||
|
||||
/*
|
||||
* We depend here on rman_activate_resource() being idempotent.
|
||||
*/
|
||||
error = rman_activate_resource(res);
|
||||
/* We depend here on rman_activate_resource() being idempotent. */
|
||||
error = rman_activate_resource(r);
|
||||
if (error)
|
||||
return (error);
|
||||
|
||||
error = powerpc_setup_intr(device_get_nameunit(child),
|
||||
rman_get_start(res), filter, ihand, arg, flags, cookiep);
|
||||
rman_get_start(r), filt, intr, arg, flags, cookiep);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_teardown_intr(device_t dev, device_t child, struct resource *res,
|
||||
void *cookie)
|
||||
nexus_teardown_intr(device_t bus __unused, device_t child __unused,
|
||||
struct resource *r, void *ih)
|
||||
{
|
||||
|
||||
if (r == NULL)
|
||||
return (EINVAL);
|
||||
|
||||
return (powerpc_teardown_intr(cookie));
|
||||
return (powerpc_teardown_intr(ih));
|
||||
}
|
||||
|
||||
#ifdef SMP
|
||||
static int
|
||||
nexus_bind_intr(device_t dev, device_t child, struct resource *irq, int cpu)
|
||||
nexus_bind_intr(device_t bus __unused, device_t child __unused,
|
||||
struct resource *r, int cpu)
|
||||
{
|
||||
|
||||
return (powerpc_bind_intr(rman_get_start(irq), cpu));
|
||||
return (powerpc_bind_intr(rman_get_start(r), cpu));
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
static int
|
||||
nexus_config_intr(device_t dev, int irq, enum intr_trigger trig,
|
||||
enum intr_polarity pol)
|
||||
{
|
||||
|
||||
return (powerpc_config_intr(irq, trig, pol));
|
||||
}
|
||||
|
||||
return (powerpc_config_intr(irq, trig, pol));
|
||||
}
|
||||
|
||||
/*
|
||||
* Allocate resources at the behest of a child. This only handles interrupts,
|
||||
* since I/O resources are handled by child busses.
|
||||
*/
|
||||
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;
|
||||
|
||||
if (type != SYS_RES_IRQ) {
|
||||
device_printf(bus, "unknown resource request from %s\n",
|
||||
device_get_nameunit(child));
|
||||
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);
|
||||
}
|
||||
|
||||
if (count == 0 || start + count - 1 != end) {
|
||||
device_printf(bus, "invalid IRQ allocation from %s\n",
|
||||
device_get_nameunit(child));
|
||||
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);
|
||||
}
|
||||
|
||||
sc = device_get_softc(bus);
|
||||
|
||||
rv = rman_reserve_resource(&sc->sc_rman, start, end, count,
|
||||
flags, child);
|
||||
if (rv == NULL) {
|
||||
device_printf(bus, "IRQ allocation failed for %s\n",
|
||||
device_get_nameunit(child));
|
||||
} else
|
||||
rman_set_rid(rv, *rid);
|
||||
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, device_t child, int type, int rid,
|
||||
struct resource *res)
|
||||
nexus_activate_resource(device_t bus __unused, device_t child __unused,
|
||||
int type, int rid __unused, struct resource *r)
|
||||
{
|
||||
|
||||
/* Not much to be done yet... */
|
||||
return (rman_activate_resource(res));
|
||||
if (type == SYS_RES_MEMORY) {
|
||||
vm_offset_t start;
|
||||
void *p;
|
||||
|
||||
start = (vm_offset_t) rman_get_start(r);
|
||||
if (bootverbose)
|
||||
printf("nexus mapdev: start %zx, len %ld\n", start,
|
||||
rman_get_size(r));
|
||||
|
||||
p = pmap_mapdev(start, (vm_size_t) rman_get_size(r));
|
||||
if (p == NULL)
|
||||
return (ENOMEM);
|
||||
rman_set_virtual(r, p);
|
||||
rman_set_bustag(r, &bs_be_tag);
|
||||
rman_set_bushandle(r, (u_long)p);
|
||||
}
|
||||
return (rman_activate_resource(r));
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_deactivate_resource(device_t bus, device_t child, int type, int rid,
|
||||
struct resource *res)
|
||||
nexus_deactivate_resource(device_t bus __unused, device_t child __unused,
|
||||
int type __unused, int rid __unused, struct resource *r)
|
||||
{
|
||||
|
||||
/* Not much to be done yet... */
|
||||
return (rman_deactivate_resource(res));
|
||||
/*
|
||||
* If this is a memory resource, unmap it.
|
||||
*/
|
||||
if ((type == SYS_RES_MEMORY) || (type == SYS_RES_IOPORT)) {
|
||||
bus_size_t psize;
|
||||
|
||||
psize = rman_get_size(r);
|
||||
pmap_unmapdev((vm_offset_t)rman_get_virtual(r), psize);
|
||||
}
|
||||
|
||||
return (rman_deactivate_resource(r));
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_release_resource(device_t bus, device_t child, int type, int rid,
|
||||
struct resource *res)
|
||||
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;
|
||||
|
||||
if (type != SYS_RES_IRQ) {
|
||||
device_printf(bus, "unknown resource request from %s\n",
|
||||
device_get_nameunit(child));
|
||||
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);
|
||||
}
|
||||
|
||||
return (rman_release_resource(res));
|
||||
if (rm == NULL)
|
||||
return (ENXIO);
|
||||
if (rman_is_region_manager(r, rm) == 0)
|
||||
return (EINVAL);
|
||||
return (rman_adjust_resource(r, start, end));
|
||||
}
|
||||
|
||||
static device_t
|
||||
nexus_device_from_node(device_t parent, phandle_t node)
|
||||
static int
|
||||
nexus_release_resource(device_t bus __unused, device_t child, int type,
|
||||
int rid, struct resource *r)
|
||||
{
|
||||
device_t cdev;
|
||||
struct nexus_devinfo *dinfo;
|
||||
int error;
|
||||
|
||||
cdev = device_add_child(parent, NULL, -1);
|
||||
if (cdev != NULL) {
|
||||
dinfo = malloc(sizeof(*dinfo), M_NEXUS, M_WAITOK);
|
||||
ofw_bus_gen_setup_devinfo(&dinfo->ndi_ofwinfo, node);
|
||||
device_set_ivars(cdev, dinfo);
|
||||
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));
|
||||
}
|
||||
|
||||
return (cdev);
|
||||
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 dev, device_t child)
|
||||
nexus_get_devinfo(device_t bus __unused, device_t child)
|
||||
{
|
||||
struct nexus_devinfo *dinfo;
|
||||
struct nexus_devinfo *ndi;
|
||||
|
||||
dinfo = device_get_ivars(child);
|
||||
return (&dinfo->ndi_ofwinfo);
|
||||
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_getprop_alloc(node, "reg", sizeof(*reg), (void **)®);
|
||||
if (nreg == -1)
|
||||
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_getprop_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] = MAP_IRQ(iparent, intr[i]);
|
||||
resource_list_add(&ndi->ndi_rl, SYS_RES_IRQ, i, intr[i],
|
||||
intr[i], 1);
|
||||
if (icells > 1) {
|
||||
powerpc_config_intr(intr[i], (intr[i+1] & 1) ?
|
||||
INTR_TRIGGER_LEVEL : INTR_TRIGGER_EDGE,
|
||||
INTR_POLARITY_LOW);
|
||||
}
|
||||
}
|
||||
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