1 files changed, 79 insertions, 0 deletions
diff --git a/src/dev/arm/pci_host.cc b/src/dev/arm/pci_host.cc
new file mode 100644
index 000000000..69eecaa7b
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+++ b/src/dev/arm/pci_host.cc
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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);
+}