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/*
* Copyright (c) 2015 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* 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;
* neither the name of the copyright holders 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 COPYRIGHT HOLDERS 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 COPYRIGHT
* OWNER 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.
*
* Authors: Andreas Sandberg
*/
#include "dev/arm/pci_host.hh"
#include "params/GenericArmPciHost.hh"
GenericArmPciHost::GenericArmPciHost(const GenericArmPciHostParams *p)
: GenericPciHost(p),
intPolicy(p->int_policy), intBase(p->int_base),
intCount(p->int_count)
{
}
uint32_t
GenericArmPciHost::mapPciInterrupt(const PciBusAddr &addr, PciIntPin pin) const
{
fatal_if(pin == PciIntPin::NO_INT,
"%02x:%02x.%i: Interrupt from a device without interrupts\n",
addr.bus, addr.dev, addr.func);
switch (intPolicy) {
case Enums::ARM_PCI_INT_STATIC:
return GenericPciHost::mapPciInterrupt(addr, pin);
case Enums::ARM_PCI_INT_DEV:
return intBase + (addr.dev % intCount);
case Enums::ARM_PCI_INT_PIN:
return intBase + ((static_cast<uint8_t>(pin) - 1) % intCount);
default:
fatal("Unsupported PCI interrupt routing policy.");
}
}
GenericArmPciHost *
GenericArmPciHostParams::create()
{
return new GenericArmPciHost(this);
}
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