4 files changed, 160 insertions, 0 deletions
diff --git a/src/dev/arm/RealView.py b/src/dev/arm/RealView.py
index 78154bcfd..3ff0d4fe6 100644
--- a/src/dev/arm/RealView.py
+++ b/src/dev/arm/RealView.py
@@ -86,6 +86,20 @@ class A9SCU(BasicPioDevice):
     type = 'A9SCU'
     cxx_header = "dev/arm/a9scu.hh"
 
+class ArmPciIntRouting(Enum): vals = [
+    'ARM_PCI_INT_STATIC',
+    'ARM_PCI_INT_DEV',
+    'ARM_PCI_INT_PIN',
+    ]
+
+class GenericArmPciHost(GenericPciHost):
+    type = 'GenericArmPciHost'
+    cxx_header = "dev/arm/pci_host.hh"
+
+    int_policy = Param.ArmPciIntRouting("PCI interrupt routing policy")
+    int_base = Param.Unsigned("PCI interrupt base")
+    int_count = Param.Unsigned("Maximum number of interrupts used by this host")
+
 class RealViewCtrl(BasicPioDevice):
     type = 'RealViewCtrl'
     cxx_header = "dev/arm/rv_ctrl.hh"
diff --git a/src/dev/arm/SConscript b/src/dev/arm/SConscript
index 804c11b24..7a559928b 100644
--- a/src/dev/arm/SConscript
+++ b/src/dev/arm/SConscript
@@ -62,6 +62,7 @@ if env['TARGET_ISA'] == 'arm':
     Source('kmi.cc')
     Source('timer_sp804.cc')
     Source('gpu_nomali.cc')
+    Source('pci_host.cc')
     Source('rv_ctrl.cc')
     Source('realview.cc')
     Source('rtc_pl031.cc')
diff --git a/src/dev/arm/pci_host.cc b/src/dev/arm/pci_host.cc
new file mode 100644
index 000000000..69eecaa7b
--- /dev/null
+++ b/src/dev/arm/pci_host.cc
@@ -0,0 +1,79 @@
+/*
+ * 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);
+}
diff --git a/src/dev/arm/pci_host.hh b/src/dev/arm/pci_host.hh
new file mode 100644
index 000000000..5835c210f
--- /dev/null
+++ b/src/dev/arm/pci_host.hh
@@ -0,0 +1,66 @@
+/*
+ * 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
+ */
+
+#ifndef __DEV_ARM_PCI_HOST_HH__
+#define __DEV_ARM_PCI_HOST_HH__
+
+#include "dev/pci/host.hh"
+#include "enums/ArmPciIntRouting.hh"
+
+class BaseGic;
+struct GenericArmPciHostParams;
+
+class GenericArmPciHost
+    : public GenericPciHost
+{
+  public:
+    GenericArmPciHost(const GenericArmPciHostParams *p);
+    virtual ~GenericArmPciHost() {}
+
+  protected:
+    uint32_t mapPciInterrupt(const PciBusAddr &addr,
+                             PciIntPin pin) const override;
+
+  protected:
+    const Enums::ArmPciIntRouting intPolicy;
+    const uint32_t intBase;
+    const uint32_t intCount;
+};
+
+#endif // __DEV_ARM_PCI_HOST_HH__