/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2014 Hudson River Trading LLC * Written by: John H. Baldwin <jhb@FreeBSD.org> * 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, 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. */ #ifndef __PCI_IRQ_MD_H__ #define __PCI_IRQ_MD_H__ struct vmctx; struct pci_irq { int pirq_pin; int ioapic_irq; }; void pci_irq_init(struct vmctx *ctx); void pci_irq_reserve(int irq); void pci_irq_use(int irq); int pirq_irq(int pin); uint8_t pirq_read(int pin); void pirq_write(struct vmctx *ctx, int pin, uint8_t val); static inline void pci_irq_init_irq(struct pci_irq *irq) { irq->pirq_pin = 0; irq->ioapic_irq = 0; } static inline uint8_t pci_irq_intline(struct pci_irq *irq) { return (pirq_irq(irq->pirq_pin)); } #endif