7bdcca7896
On BHND MIPS SoCs, this replaces the use of hard-coded MIPS IRQ#s in the common bhnd(4) core drivers; we now register an INTRNG child PIC that handles routing of backplane interrupt vectors via the MIPS core. On BHND PCI devices, backplane interrupt vectors are now routed to the PCI/PCIe host bridge core when bus_setup_intr() is called, where they are dispatched by the PCI core via a host interrupt (e.g. INTx/MSI). The bhndb(4) bridge driver tracks registered interrupt handlers for the bridged bhnd(4) devices and manages backplane interrupt routing, while delegating actual bus interrupt setup/teardown to the parent bus on behalf of the bridged cores. Approved by: adrian (mentor, implicit) Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D12518
85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/* $NetBSD: intr.h,v 1.7 2003/06/16 20:01:00 thorpej Exp $ */
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/*-
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* Copyright (c) 1997 Mark Brinicombe.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Mark Brinicombe
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* for the NetBSD Project.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#ifndef _MACHINE_INTR_H_
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#define _MACHINE_INTR_H_
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#ifdef INTRNG
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#ifdef FDT
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#include <dev/ofw/openfirm.h>
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#endif
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#include <sys/intr.h>
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#ifndef MIPS_NIRQ
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#define MIPS_NIRQ 128
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#endif
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#ifndef NIRQ
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#define NIRQ MIPS_NIRQ
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#endif
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#ifndef FDT
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#define MIPS_PIC_XREF 1 /**< unique xref */
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#endif
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#define NHARD_IRQS 6
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#define NSOFT_IRQS 2
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#define NREAL_IRQS (NHARD_IRQS + NSOFT_IRQS)
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#define INTR_IRQ_NSPC_SWI 4
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/* MIPS32 PIC APIs */
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int mips_pic_map_fixed_intrs(void);
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int mips_pic_activate_intr(device_t child, struct resource *r);
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int mips_pic_deactivate_intr(device_t child, struct resource *r);
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/* MIPS compatibility for legacy mips code */
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void cpu_init_interrupts(void);
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void cpu_establish_hardintr(const char *, driver_filter_t *, driver_intr_t *,
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void *, int, int, void **);
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void cpu_establish_softintr(const char *, driver_filter_t *, void (*)(void*),
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void *, int, int, void **);
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/* MIPS interrupt C entry point */
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void cpu_intr(struct trapframe *);
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#endif /* INTRNG */
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#endif /* _MACHINE_INTR_H */
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