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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2024 Jessica Clarke <jrtc27@FreeBSD.org>
*
* 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.
*/
#include <vmmapi.h>
#include "pci_emul.h"
#include "pci_irq.h"
static int gic_irqs[4];
void
pci_irq_init(int intrs[static 4])
{
int i;
for (i = 0; i < 4; ++i)
gic_irqs[i] = intrs[i];
}
void
pci_irq_assert(struct pci_devinst *pi)
{
vm_assert_irq(pi->pi_vmctx, pi->pi_lintr.irq.gic_irq);
}
void
pci_irq_deassert(struct pci_devinst *pi)
{
vm_deassert_irq(pi->pi_vmctx, pi->pi_lintr.irq.gic_irq);
}
void
pci_irq_route(struct pci_devinst *pi, struct pci_irq *irq)
{
/*
* Assign swizzled IRQ for this INTx if one is not yet assigned. Must
* match fdt_add_pcie().
*/
if (irq->gic_irq == 0)
irq->gic_irq =
gic_irqs[(pi->pi_slot + pi->pi_lintr.pin - 1) % 4];
}
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