bdb2820218
Change-Id: I0907a6f1ada3038305c2d83a350a8d435ac657ba Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/25403 Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu> Tested-by: kokoro <noreply+kokoro@google.com>
78 lines
3.0 KiB
C++
78 lines
3.0 KiB
C++
/*
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* Copyright (c) 2015 ARM Limited
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* All rights reserved
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*
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* The license below extends only to copyright in the software and shall
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* not be construed as granting a license to any other intellectual
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* property including but not limited to intellectual property relating
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* to a hardware implementation of the functionality of the software
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* licensed hereunder. You may use the software subject to the license
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* terms below provided that you ensure that this notice is replicated
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* unmodified and in its entirety in all distributions of the software,
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* modified or unmodified, in source code or in binary form.
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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 are
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* met: 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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* 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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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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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 MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "dev/arm/pci_host.hh"
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#include "params/GenericArmPciHost.hh"
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GenericArmPciHost::GenericArmPciHost(const GenericArmPciHostParams *p)
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: GenericPciHost(p),
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intPolicy(p->int_policy), intBase(p->int_base),
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intCount(p->int_count)
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{
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}
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uint32_t
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GenericArmPciHost::mapPciInterrupt(const PciBusAddr &addr, PciIntPin pin) const
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{
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fatal_if(pin == PciIntPin::NO_INT,
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"%02x:%02x.%i: Interrupt from a device without interrupts\n",
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addr.bus, addr.dev, addr.func);
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switch (intPolicy) {
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case Enums::ARM_PCI_INT_STATIC:
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return GenericPciHost::mapPciInterrupt(addr, pin);
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case Enums::ARM_PCI_INT_DEV:
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return intBase + (addr.dev % intCount);
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case Enums::ARM_PCI_INT_PIN:
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return intBase + ((static_cast<uint8_t>(pin) - 1) % intCount);
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default:
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fatal("Unsupported PCI interrupt routing policy.");
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}
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}
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GenericArmPciHost *
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GenericArmPciHostParams::create()
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{
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return new GenericArmPciHost(this);
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}
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