caeff9a3c2
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
109 lines
3.7 KiB
C
109 lines
3.7 KiB
C
/*-
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* Copyright (c) 2015-2016 Landon Fuller <landonf@FreeBSD.org>
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* Copyright (c) 2017 The FreeBSD Foundation
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* All rights reserved.
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*
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* Portions of this software were developed by Landon Fuller
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* under sponsorship from the FreeBSD Foundation.
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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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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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#ifndef _BHND_BHNDVAR_H_
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#define _BHND_BHNDVAR_H_
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/queue.h>
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#include <sys/sx.h>
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#include "bhnd.h"
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/*
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* Definitions shared by bhnd(4) bus and bhndb(4) bridge driver implementations.
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*/
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MALLOC_DECLARE(M_BHND);
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DECLARE_CLASS(bhnd_driver);
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int bhnd_generic_attach(device_t dev);
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int bhnd_generic_detach(device_t dev);
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int bhnd_generic_shutdown(device_t dev);
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int bhnd_generic_resume(device_t dev);
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int bhnd_generic_suspend(device_t dev);
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int bhnd_generic_get_probe_order(device_t dev,
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device_t child);
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int bhnd_generic_alloc_pmu(device_t dev,
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device_t child);
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int bhnd_generic_release_pmu(device_t dev,
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device_t child);
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int bhnd_generic_request_clock(device_t dev,
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device_t child, bhnd_clock clock);
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int bhnd_generic_enable_clocks(device_t dev,
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device_t child, uint32_t clocks);
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int bhnd_generic_request_ext_rsrc(device_t dev,
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device_t child, u_int rsrc);
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int bhnd_generic_release_ext_rsrc(device_t dev,
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device_t child, u_int rsrc);
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int bhnd_generic_print_child(device_t dev,
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device_t child);
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void bhnd_generic_probe_nomatch(device_t dev,
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device_t child);
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void bhnd_generic_child_deleted(device_t dev,
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device_t child);
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int bhnd_generic_suspend_child(device_t dev,
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device_t child);
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int bhnd_generic_resume_child(device_t dev,
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device_t child);
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int bhnd_generic_setup_intr(device_t dev,
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device_t child, struct resource *irq,
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int flags, driver_filter_t *filter,
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driver_intr_t *intr, void *arg,
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void **cookiep);
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int bhnd_generic_get_nvram_var(device_t dev,
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device_t child, const char *name,
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void *buf, size_t *size,
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bhnd_nvram_type type);
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/**
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* bhnd driver instance state. Must be first member of all subclass
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* softc structures.
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*/
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struct bhnd_softc {
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device_t dev; /**< bus device */
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};
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#endif /* _BHND_BHNDVAR_H_ */
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