67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
/*-
|
|
* 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];
|
|
}
|