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/* $OpenBSD: xics.c,v 1.3 2020/09/21 11:14:28 kettenis Exp $ */
/*
* Copyright (c) 2020 Mark Kettenis <kettenis@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/evcount.h>
#include <sys/malloc.h>
#include <sys/queue.h>
#include <machine/bus.h>
#include <machine/fdt.h>
#include <machine/opal.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/fdt.h>
struct xics_softc {
struct device sc_dev;
struct interrupt_controller sc_ic;
};
int xics_match(struct device *, void *, void *);
void xics_attach(struct device *, struct device *, void *);
struct cfattach xics_ca = {
sizeof (struct xics_softc), xics_match, xics_attach
};
struct cfdriver xics_cd = {
NULL, "xics", DV_DULL
};
void *xics_intr_establish(void *, int *, int,
struct cpu_info *, int (*)(void *), void *, char *);
void xics_intr_send_ipi(void *);
int
xics_match(struct device *parent, void *match, void *aux)
{
struct fdt_attach_args *faa = aux;
return OF_is_compatible(faa->fa_node, "ibm,opal-xive-vc");
}
void
xics_attach(struct device *parent, struct device *self, void *aux)
{
struct xics_softc *sc = (struct xics_softc *)self;
struct fdt_attach_args *faa = aux;
printf("\n");
sc->sc_ic.ic_node = faa->fa_node;
sc->sc_ic.ic_cookie = self;
sc->sc_ic.ic_establish = xics_intr_establish;
sc->sc_ic.ic_send_ipi = xics_intr_send_ipi;
interrupt_controller_register(&sc->sc_ic);
}
void *
xics_intr_establish(void *cookie, int *cell, int level,
struct cpu_info *ci, int (*func)(void *), void *arg, char *name)
{
uint32_t girq = cell[0];
int type = cell[1];
return _intr_establish(girq, type, level, ci, func, arg, name);
}
void
xics_intr_send_ipi(void *cookie)
{
return _intr_send_ipi(cookie);
}
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