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/*- SPDX-License-Identifier: BSD-2-Clause-FreeBSD
* Copyright (c) 2009-2012,2016-2017, 2022 Microsoft Corp.
* Copyright (c) 2012 NetApp Inc.
* Copyright (c) 2012 Citrix Inc.
* 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 unmodified, 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 ``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 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.
*/
/*
* VM Bus Driver Implementation
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/linker.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/sbuf.h>
#include <sys/smp.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
#include <sys/taskqueue.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <machine/bus.h>
#include <machine/metadata.h>
#include <machine/md_var.h>
#include <machine/resource.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <dev/acpica/acpivar.h>
#include <dev/hyperv/include/hyperv.h>
#include <dev/hyperv/include/vmbus_xact.h>
#include <dev/hyperv/vmbus/hyperv_var.h>
#include <dev/hyperv/vmbus/vmbus_reg.h>
#include <dev/hyperv/vmbus/vmbus_var.h>
#include <dev/hyperv/vmbus/vmbus_chanvar.h>
#include <dev/hyperv/vmbus/aarch64/hyperv_machdep.h>
#include <dev/hyperv/vmbus/aarch64/hyperv_reg.h>
#include <dev/hyperv/vmbus/hyperv_common_reg.h>
#include "acpi_if.h"
#include "pcib_if.h"
#include "vmbus_if.h"
static int vmbus_handle_intr_new(void *);
void vmbus_handle_timer_intr1(struct vmbus_message *msg_base,
struct trapframe *frame);
void vmbus_synic_setup1(void *xsc);
void vmbus_synic_teardown1(void);
int vmbus_setup_intr1(struct vmbus_softc *sc);
void vmbus_intr_teardown1(struct vmbus_softc *sc);
void
vmbus_handle_timer_intr1(struct vmbus_message *msg_base,
struct trapframe *frame)
{
// do nothing for arm64, as we are using generic timer
return;
}
static int
vmbus_handle_intr_new(void *arg)
{
vmbus_handle_intr(NULL);
return (FILTER_HANDLED);
}
void
vmbus_synic_setup1(void *xsc)
{
return;
}
void
vmbus_synic_teardown1(void)
{
return;
}
int
vmbus_setup_intr1(struct vmbus_softc *sc)
{
int err;
struct intr_map_data_acpi *irq_data;
device_t dev;
dev = devclass_get_device(devclass_find("vmbus_res"), 0);
sc->ires = bus_alloc_resource_any(dev,
SYS_RES_IRQ, &sc->vector, RF_ACTIVE | RF_SHAREABLE);
if (sc->ires == NULL) {
device_printf(sc->vmbus_dev, "bus_alloc_resouce_any failed\n");
return (ENXIO);
} else {
device_printf(sc->vmbus_dev, "irq 0x%lx, vector %d end 0x%lx\n",
(uint64_t)rman_get_start(sc->ires), sc->vector,
(uint64_t)rman_get_end(sc->ires));
}
err = bus_setup_intr(sc->vmbus_dev, sc->ires, INTR_TYPE_MISC,
vmbus_handle_intr_new, NULL, sc, &sc->icookie);
if (err) {
device_printf(sc->vmbus_dev, "failed to setup IRQ %d\n", err);
return (err);
}
irq_data = (struct intr_map_data_acpi *)rman_get_virtual(sc->ires);
device_printf(sc->vmbus_dev, "the irq %u\n", irq_data->irq);
sc->vmbus_idtvec = irq_data->irq;
return 0;
}
void
vmbus_intr_teardown1(struct vmbus_softc *sc)
{
int cpu;
sc->vmbus_idtvec = -1;
bus_teardown_intr(sc->vmbus_dev, sc->ires, sc->icookie);
CPU_FOREACH(cpu) {
if (VMBUS_PCPU_GET(sc, event_tq, cpu) != NULL) {
taskqueue_free(VMBUS_PCPU_GET(sc, event_tq, cpu));
VMBUS_PCPU_GET(sc, event_tq, cpu) = NULL;
}
if (VMBUS_PCPU_GET(sc, message_tq, cpu) != NULL) {
taskqueue_drain(VMBUS_PCPU_GET(sc, message_tq, cpu),
VMBUS_PCPU_PTR(sc, message_task, cpu));
taskqueue_free(VMBUS_PCPU_GET(sc, message_tq, cpu));
VMBUS_PCPU_GET(sc, message_tq, cpu) = NULL;
}
}
}
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