/* NetBSD: intr.c,v 1.15 2004/04/10 14:49:55 kochi Exp */ /* * Copyright 2002 (c) Wasabi Systems, Inc. * All rights reserved. * * Written by Frank van der Linden for Wasabi Systems, Inc. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed for the NetBSD Project by * Wasabi Systems, Inc. * 4. The name of Wasabi Systems, Inc. may not be used to endorse * or promote products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC * 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. */ /*- * Copyright (c) 1991 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * 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. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * @(#)isa.c 7.2 (Berkeley) 5/13/91 */ /*- * Copyright (c) 1993, 1994 Charles Hannum. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * @(#)isa.c 7.2 (Berkeley) 5/13/91 */ #include __KERNEL_RCSID(0, "$NetBSD: pintr.c,v 1.10 2019/02/13 06:15:51 cherry Exp $"); #include "opt_multiprocessor.h" #include "opt_xen.h" #include "isa.h" #include "pci.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "acpica.h" #include "ioapic.h" #include "opt_mpbios.h" #if NIOAPIC > 0 /* XXX: todo - compat with lapic.c and XEN for x2apic */ bool x2apic_mode __read_mostly = false; /* for x86/i8259.c */ struct intrstub legacy_stubs[NUM_LEGACY_IRQS] = {{0,0,0}}; /* for x86/ioapic.c */ struct intrstub ioapic_edge_stubs[MAX_INTR_SOURCES] = {{0,0,0}}; struct intrstub ioapic_level_stubs[MAX_INTR_SOURCES] = {{0,0,0}}; struct intrstub x2apic_edge_stubs[MAX_INTR_SOURCES] = {{0,0,0}}; struct intrstub x2apic_level_stubs[MAX_INTR_SOURCES] = {{0,0,0}}; #include #endif /* NIOAPIC */ int irq2port[NR_EVENT_CHANNELS] = {0}; /* actually port + 1, so that 0 is invaid */ static int irq2vect[256] = {0}; static int vect2irq[256] = {0}; #if NACPICA > 0 #include #include #endif #ifdef MPBIOS #include #endif #if NPCI > 0 #include #endif #if defined(DOM0OPS) || NPCI > 0 int xen_vec_alloc(int gsi) { physdev_op_t op; KASSERT(gsi < 255); if (irq2port[gsi] == 0) { op.cmd = PHYSDEVOP_ASSIGN_VECTOR; op.u.irq_op.irq = gsi; if (HYPERVISOR_physdev_op(&op) < 0) { panic("PHYSDEVOP_ASSIGN_VECTOR gsi %d", gsi); } KASSERT(irq2vect[gsi] == 0 || irq2vect[gsi] == op.u.irq_op.vector); irq2vect[gsi] = op.u.irq_op.vector; KASSERT(vect2irq[op.u.irq_op.vector] == 0 || vect2irq[op.u.irq_op.vector] == gsi); vect2irq[op.u.irq_op.vector] = gsi; } return (irq2vect[gsi]); } /* * This function doesn't "allocate" anything. It merely translates our * understanding of PIC to the XEN 'gsi' namespace. In the case of * MSIs, pirq == irq. In the case of everything else, the hypervisor * doesn't really care, so we just use the native conventions that * have been setup during boot by mpbios.c/mpacpi.c */ int xen_pic_to_gsi(struct pic *pic, int pin) { int gsi; KASSERT(pic != NULL); /* * We assume that mpbios/mpacpi have done the right thing. * If so, legacy_irq should identity map correctly to gsi. */ gsi = pic->pic_vecbase + pin; switch (pic->pic_type) { case PIC_I8259: KASSERT(gsi < 16); break; case PIC_IOAPIC: break; default: /* XXX: MSI Support */ panic("XXX: MSI(X) Support"); break; } KASSERT(gsi < 255); return gsi; } #endif /* defined(DOM0OPS) || NPCI > 0 */