- Add the "compatible" property to the list that we keep in ivars.
- Add interrupt alloc/setup/teardown/dealloc support, via whichever PIC OpenFirmware gives us.
This commit is contained in:
Benno Rice
parent
f6a7723dff
commit
7abc408094
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=99652
@ -66,9 +66,14 @@
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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/nexusvar.h>
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#include <machine/resource.h>
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#include <sys/rman.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 OpenFirmware and adds them as devices to this bus so that drivers
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@ -85,15 +90,41 @@ struct nexus_devinfo {
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/* Some common properties. */
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char *ndi_name;
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char *ndi_device_type;
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char *ndi_compatible;
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};
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struct nexus_softc {
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device_t sc_pic;
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};
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static int nexus_probe(device_t);
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static void nexus_probe_nomatch(device_t, device_t);
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static int nexus_read_ivar(device_t, device_t, int, uintptr_t *);
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static int nexus_write_ivar(device_t, device_t, int, uintptr_t);
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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 void nexus_probe_nomatch(device_t, device_t);
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/*
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* Bus interface
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*/
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static int nexus_read_ivar(device_t, device_t, int, uintptr_t *);
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static int nexus_write_ivar(device_t, device_t, int, uintptr_t);
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static int nexus_setup_intr(device_t, device_t, struct resource *, int,
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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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/*
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* Local routines
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*/
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static device_t create_device_from_node(device_t, phandle_t);
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static device_method_t nexus_methods[] = {
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/* Device interface */
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@ -109,6 +140,12 @@ static device_method_t nexus_methods[] = {
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DEVMETHOD(bus_probe_nomatch, nexus_probe_nomatch),
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DEVMETHOD(bus_read_ivar, nexus_read_ivar),
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DEVMETHOD(bus_write_ivar, nexus_write_ivar),
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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_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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{ 0, 0 }
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};
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@ -127,33 +164,41 @@ static int
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nexus_probe(device_t dev)
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{
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phandle_t root;
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phandle_t child, new_node, temp_node;
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device_t cdev;
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struct nexus_devinfo *dinfo;
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phandle_t pic, cpus, child, new_node, temp_node;
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struct nexus_softc *sc;
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char *name, *type;
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if ((root = OF_peer(0)) == -1)
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panic("nexus_probe: OF_peer failed.");
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sc = device_get_softc(dev);
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if ((cpus = OF_finddevice("/cpus")) != -1) {
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for (child = OF_child(cpus); child; child = OF_peer(child))
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(void)create_device_from_node(dev, child);
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}
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if ((child = OF_finddevice("/chosen")) == -1)
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printf("nexus_probe: can't find /chosen");
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if (OF_getprop(child, "interrupt-controller", &pic, 4) != 4)
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printf("nexus_probe: can't get interrupt-controller");
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sc->sc_pic = create_device_from_node(dev, pic);
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if (sc->sc_pic == NULL)
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printf("nexus_probe: failed to create PIC device");
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child = root;
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while (child != 0) {
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OF_getprop_alloc(child, "name", 1, (void **)&name);
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OF_getprop_alloc(child, "device_type", 1, (void **)&type);
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cdev = device_add_child(dev, NULL, -1);
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if (cdev != NULL) {
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dinfo = malloc(sizeof(*dinfo), M_NEXUS, M_WAITOK);
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dinfo->ndi_node = child;
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dinfo->ndi_name = name;
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dinfo->ndi_device_type = type;
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device_set_ivars(cdev, dinfo);
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} else
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free(name, M_OFWPROP);
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if (child != pic)
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(void)create_device_from_node(dev, child);
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next:
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new_node = OF_child(child);
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if (child == cpus)
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new_node = 0;
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else
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new_node = OF_child(child);
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if (new_node == -1)
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panic("nexus_probe: OF_child return -1");
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panic("nexus_probe: OF_child returned -1");
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if (new_node == 0)
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new_node = OF_peer(child);
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if (new_node == 0) {
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@ -168,6 +213,13 @@ nexus_probe(device_t dev)
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child = new_node;
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}
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device_set_desc(dev, "OpenFirmware Nexus device");
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{
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u_int *foo = 0xf8000020;
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pmap_kenter(0xf8000000, 0xf8000000);
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printf(">>> uni_n_clock_ctl = %08x\n", *foo);
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pmap_kremove(0xf8000000);
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}
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return (0);
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}
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@ -207,6 +259,9 @@ nexus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
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case NEXUS_IVAR_DEVICE_TYPE:
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*result = (uintptr_t)dinfo->ndi_device_type;
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break;
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case NEXUS_IVAR_COMPATIBLE:
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*result = (uintptr_t)dinfo->ndi_compatible;
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break;
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default:
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return (ENOENT);
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}
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@ -231,3 +286,121 @@ nexus_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
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}
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return 0;
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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_intr_t *intr, void *arg, void **cookiep)
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{
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struct nexus_softc *sc;
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sc = device_get_softc(dev);
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if (device_get_state(sc->sc_pic) != DS_ATTACHED)
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panic("nexus_setup_intr: no pic attached\n");
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return (PIC_SETUP_INTR(sc->sc_pic, child, res, flags, intr, arg,
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cookiep));
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}
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static int
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nexus_teardown_intr(device_t dev, device_t child, struct resource *res,
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void *ih)
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{
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struct nexus_softc *sc;
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sc = device_get_softc(dev);
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if (device_get_state(sc->sc_pic) != DS_ATTACHED)
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panic("nexus_teardown_intr: no pic attached\n");
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return (PIC_TEARDOWN_INTR(sc->sc_pic, child, res, ih));
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}
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/*
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* Allocate resources at the behest of a child. This only handles interrupts,
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* since I/O resources are handled by child busses.
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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 nexus_softc *sc;
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struct resource *rv;
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sc = device_get_softc(bus);
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if (type != SYS_RES_IRQ) {
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device_printf(bus, "unknown resource request from %s\n",
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device_get_nameunit(child));
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return (NULL);
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}
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if (device_get_state(sc->sc_pic) != DS_ATTACHED)
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panic("nexus_alloc_resource: no pic attached\n");
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rv = PIC_ALLOCATE_INTR(sc->sc_pic, child, rid, start, flags);
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return (rv);
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}
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static int
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nexus_activate_resource(device_t bus, device_t child, int type, int rid,
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struct resource *res)
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{
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/* Not much to be done yet... */
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return (rman_activate_resource(res));
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}
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static int
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nexus_deactivate_resource(device_t bus, device_t child, int type, int rid,
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struct resource *res)
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{
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/* Not much to be done yet... */
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return (rman_deactivate_resource(res));
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}
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static int
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nexus_release_resource(device_t bus, device_t child, int type, int rid,
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struct resource *res)
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{
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struct nexus_softc *sc;
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sc = device_get_softc(bus);
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if (type != SYS_RES_IRQ) {
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device_printf(bus, "unknown resource request from %s\n",
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device_get_nameunit(child));
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return (NULL);
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}
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if (device_get_state(sc->sc_pic) != DS_ATTACHED)
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panic("nexus_release_resource: no pic attached\n");
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return (PIC_RELEASE_INTR(sc->sc_pic, child, rid, res));
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}
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static device_t
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create_device_from_node(device_t parent, phandle_t node)
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{
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device_t cdev;
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struct nexus_devinfo *dinfo;
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char *name, *type, *compatible;
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OF_getprop_alloc(node, "name", 1, (void **)&name);
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OF_getprop_alloc(node, "device_type", 1, (void **)&type);
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OF_getprop_alloc(node, "compatible", 1, (void **)&compatible);
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cdev = device_add_child(parent, NULL, -1);
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if (cdev != NULL) {
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dinfo = malloc(sizeof(*dinfo), M_NEXUS, M_WAITOK);
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dinfo->ndi_node = node;
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dinfo->ndi_name = name;
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dinfo->ndi_device_type = type;
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dinfo->ndi_compatible = compatible;
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device_set_ivars(cdev, dinfo);
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} else
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free(name, M_OFWPROP);
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return (cdev);
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}
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@ -32,6 +32,7 @@ enum nexus_ivars {
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NEXUS_IVAR_NODE,
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NEXUS_IVAR_NAME,
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NEXUS_IVAR_DEVICE_TYPE,
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NEXUS_IVAR_COMPATIBLE,
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};
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/*
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@ -45,6 +46,7 @@ enum nexus_ivars {
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NEXUS_ACCESSOR(node, NODE, phandle_t)
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NEXUS_ACCESSOR(name, NAME, char *)
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NEXUS_ACCESSOR(device_type, DEVICE_TYPE, char *)
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NEXUS_ACCESSOR(compatible, COMPATIBLE, char *)
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#undef NEXUS_ACCESSOR
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@ -66,9 +66,14 @@
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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/nexusvar.h>
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#include <machine/resource.h>
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#include <sys/rman.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 OpenFirmware and adds them as devices to this bus so that drivers
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@ -85,15 +90,41 @@ struct nexus_devinfo {
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/* Some common properties. */
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char *ndi_name;
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char *ndi_device_type;
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char *ndi_compatible;
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};
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struct nexus_softc {
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device_t sc_pic;
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};
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static int nexus_probe(device_t);
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static void nexus_probe_nomatch(device_t, device_t);
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static int nexus_read_ivar(device_t, device_t, int, uintptr_t *);
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static int nexus_write_ivar(device_t, device_t, int, uintptr_t);
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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 void nexus_probe_nomatch(device_t, device_t);
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/*
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* Bus interface
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*/
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static int nexus_read_ivar(device_t, device_t, int, uintptr_t *);
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static int nexus_write_ivar(device_t, device_t, int, uintptr_t);
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static int nexus_setup_intr(device_t, device_t, struct resource *, int,
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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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/*
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* Local routines
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*/
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static device_t create_device_from_node(device_t, phandle_t);
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static device_method_t nexus_methods[] = {
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/* Device interface */
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@ -109,6 +140,12 @@ static device_method_t nexus_methods[] = {
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DEVMETHOD(bus_probe_nomatch, nexus_probe_nomatch),
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DEVMETHOD(bus_read_ivar, nexus_read_ivar),
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DEVMETHOD(bus_write_ivar, nexus_write_ivar),
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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_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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{ 0, 0 }
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};
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@ -127,33 +164,41 @@ static int
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nexus_probe(device_t dev)
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{
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phandle_t root;
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phandle_t child, new_node, temp_node;
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device_t cdev;
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struct nexus_devinfo *dinfo;
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phandle_t pic, cpus, child, new_node, temp_node;
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struct nexus_softc *sc;
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char *name, *type;
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if ((root = OF_peer(0)) == -1)
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panic("nexus_probe: OF_peer failed.");
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sc = device_get_softc(dev);
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if ((cpus = OF_finddevice("/cpus")) != -1) {
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for (child = OF_child(cpus); child; child = OF_peer(child))
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(void)create_device_from_node(dev, child);
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}
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if ((child = OF_finddevice("/chosen")) == -1)
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printf("nexus_probe: can't find /chosen");
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if (OF_getprop(child, "interrupt-controller", &pic, 4) != 4)
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printf("nexus_probe: can't get interrupt-controller");
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sc->sc_pic = create_device_from_node(dev, pic);
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if (sc->sc_pic == NULL)
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printf("nexus_probe: failed to create PIC device");
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child = root;
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while (child != 0) {
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OF_getprop_alloc(child, "name", 1, (void **)&name);
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OF_getprop_alloc(child, "device_type", 1, (void **)&type);
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cdev = device_add_child(dev, NULL, -1);
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if (cdev != NULL) {
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dinfo = malloc(sizeof(*dinfo), M_NEXUS, M_WAITOK);
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dinfo->ndi_node = child;
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dinfo->ndi_name = name;
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dinfo->ndi_device_type = type;
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device_set_ivars(cdev, dinfo);
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} else
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free(name, M_OFWPROP);
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if (child != pic)
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(void)create_device_from_node(dev, child);
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next:
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new_node = OF_child(child);
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if (child == cpus)
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new_node = 0;
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else
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new_node = OF_child(child);
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if (new_node == -1)
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panic("nexus_probe: OF_child return -1");
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panic("nexus_probe: OF_child returned -1");
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if (new_node == 0)
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new_node = OF_peer(child);
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if (new_node == 0) {
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@ -168,6 +213,13 @@ nexus_probe(device_t dev)
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child = new_node;
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}
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device_set_desc(dev, "OpenFirmware Nexus device");
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{
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u_int *foo = 0xf8000020;
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pmap_kenter(0xf8000000, 0xf8000000);
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printf(">>> uni_n_clock_ctl = %08x\n", *foo);
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pmap_kremove(0xf8000000);
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}
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return (0);
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}
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@ -207,6 +259,9 @@ nexus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
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case NEXUS_IVAR_DEVICE_TYPE:
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||||
*result = (uintptr_t)dinfo->ndi_device_type;
|
||||
break;
|
||||
case NEXUS_IVAR_COMPATIBLE:
|
||||
*result = (uintptr_t)dinfo->ndi_compatible;
|
||||
break;
|
||||
default:
|
||||
return (ENOENT);
|
||||
}
|
||||
@ -231,3 +286,121 @@ nexus_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_setup_intr(device_t dev, device_t child, struct resource *res, int flags,
|
||||
driver_intr_t *intr, void *arg, void **cookiep)
|
||||
{
|
||||
struct nexus_softc *sc;
|
||||
|
||||
sc = device_get_softc(dev);
|
||||
|
||||
if (device_get_state(sc->sc_pic) != DS_ATTACHED)
|
||||
panic("nexus_setup_intr: no pic attached\n");
|
||||
|
||||
return (PIC_SETUP_INTR(sc->sc_pic, child, res, flags, intr, arg,
|
||||
cookiep));
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_teardown_intr(device_t dev, device_t child, struct resource *res,
|
||||
void *ih)
|
||||
{
|
||||
struct nexus_softc *sc;
|
||||
|
||||
sc = device_get_softc(dev);
|
||||
|
||||
if (device_get_state(sc->sc_pic) != DS_ATTACHED)
|
||||
panic("nexus_teardown_intr: no pic attached\n");
|
||||
|
||||
return (PIC_TEARDOWN_INTR(sc->sc_pic, child, res, ih));
|
||||
}
|
||||
|
||||
/*
|
||||
* 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 resource *rv;
|
||||
|
||||
sc = device_get_softc(bus);
|
||||
|
||||
if (type != SYS_RES_IRQ) {
|
||||
device_printf(bus, "unknown resource request from %s\n",
|
||||
device_get_nameunit(child));
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
if (device_get_state(sc->sc_pic) != DS_ATTACHED)
|
||||
panic("nexus_alloc_resource: no pic attached\n");
|
||||
|
||||
rv = PIC_ALLOCATE_INTR(sc->sc_pic, child, rid, start, flags);
|
||||
|
||||
return (rv);
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_activate_resource(device_t bus, device_t child, int type, int rid,
|
||||
struct resource *res)
|
||||
{
|
||||
|
||||
/* Not much to be done yet... */
|
||||
return (rman_activate_resource(res));
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_deactivate_resource(device_t bus, device_t child, int type, int rid,
|
||||
struct resource *res)
|
||||
{
|
||||
|
||||
/* Not much to be done yet... */
|
||||
return (rman_deactivate_resource(res));
|
||||
}
|
||||
|
||||
static int
|
||||
nexus_release_resource(device_t bus, device_t child, int type, int rid,
|
||||
struct resource *res)
|
||||
{
|
||||
struct nexus_softc *sc;
|
||||
|
||||
sc = device_get_softc(bus);
|
||||
|
||||
if (type != SYS_RES_IRQ) {
|
||||
device_printf(bus, "unknown resource request from %s\n",
|
||||
device_get_nameunit(child));
|
||||
return (NULL);
|
||||
}
|
||||
|
||||
if (device_get_state(sc->sc_pic) != DS_ATTACHED)
|
||||
panic("nexus_release_resource: no pic attached\n");
|
||||
|
||||
return (PIC_RELEASE_INTR(sc->sc_pic, child, rid, res));
|
||||
}
|
||||
|
||||
static device_t
|
||||
create_device_from_node(device_t parent, phandle_t node)
|
||||
{
|
||||
device_t cdev;
|
||||
struct nexus_devinfo *dinfo;
|
||||
char *name, *type, *compatible;
|
||||
|
||||
OF_getprop_alloc(node, "name", 1, (void **)&name);
|
||||
OF_getprop_alloc(node, "device_type", 1, (void **)&type);
|
||||
OF_getprop_alloc(node, "compatible", 1, (void **)&compatible);
|
||||
cdev = device_add_child(parent, NULL, -1);
|
||||
if (cdev != NULL) {
|
||||
dinfo = malloc(sizeof(*dinfo), M_NEXUS, M_WAITOK);
|
||||
dinfo->ndi_node = node;
|
||||
dinfo->ndi_name = name;
|
||||
dinfo->ndi_device_type = type;
|
||||
dinfo->ndi_compatible = compatible;
|
||||
device_set_ivars(cdev, dinfo);
|
||||
} else
|
||||
free(name, M_OFWPROP);
|
||||
|
||||
return (cdev);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user