fastmodel: Add IrisMMU model

JIRA: https://gem5.atlassian.net/browse/GEM5-790

Change-Id: Ida4ec76df5f6192e34a5b3fc6d002c473d48b387
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/35415
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
diff --git a/src/arch/arm/fastmodel/iris/Iris.py b/src/arch/arm/fastmodel/iris/Iris.py
index a73e46e..20699fa 100644
--- a/src/arch/arm/fastmodel/iris/Iris.py
+++ b/src/arch/arm/fastmodel/iris/Iris.py
@@ -1,3 +1,15 @@
+# Copyright (c) 2020 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.
+#
 # Copyright 2019 Google, Inc.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -30,12 +42,20 @@
 from m5.objects.BaseInterrupts import BaseInterrupts
 from m5.objects.BaseISA import BaseISA
 from m5.objects.BaseTLB import BaseTLB
+from m5.objects.BaseMMU import BaseMMU
 
 class IrisTLB(BaseTLB):
     type = 'IrisTLB'
     cxx_class = 'Iris::TLB'
     cxx_header = 'arch/arm/fastmodel/iris/tlb.hh'
 
+class IrisMMU(BaseMMU):
+    type = 'IrisMMU'
+    cxx_class = 'Iris::MMU'
+    cxx_header = 'arch/arm/fastmodel/iris/mmu.hh'
+    itb = IrisTLB()
+    dtb = IrisTLB()
+
 class IrisInterrupts(BaseInterrupts):
     type = 'IrisInterrupts'
     cxx_class = 'Iris::Interrupts'
diff --git a/src/arch/arm/fastmodel/iris/SConscript b/src/arch/arm/fastmodel/iris/SConscript
index 9586f0f..2e0b52b 100644
--- a/src/arch/arm/fastmodel/iris/SConscript
+++ b/src/arch/arm/fastmodel/iris/SConscript
@@ -32,6 +32,7 @@
 Source('cpu.cc')
 Source('interrupts.cc')
 Source('isa.cc')
+Source('mmu.cc')
 Source('tlb.cc')
 
 Source('thread_context.cc')
diff --git a/src/arch/arm/fastmodel/iris/mmu.cc b/src/arch/arm/fastmodel/iris/mmu.cc
new file mode 100644
index 0000000..407c18a
--- /dev/null
+++ b/src/arch/arm/fastmodel/iris/mmu.cc
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2020 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.
+ */
+
+#include "arch/arm/fastmodel/iris/mmu.hh"
+
+Iris::MMU *
+IrisMMUParams::create()
+{
+    return new Iris::MMU(this);
+}
diff --git a/src/arch/arm/fastmodel/iris/mmu.hh b/src/arch/arm/fastmodel/iris/mmu.hh
new file mode 100644
index 0000000..1989951
--- /dev/null
+++ b/src/arch/arm/fastmodel/iris/mmu.hh
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2020 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.
+ */
+
+#ifndef __ARCH_ARM_FASTMODEL_IRIS_MMU_HH__
+#define __ARCH_ARM_FASTMODEL_IRIS_MMU_HH__
+
+#include "arch/generic/mmu.hh"
+
+#include "params/IrisMMU.hh"
+
+namespace Iris
+{
+
+class MMU : public BaseMMU
+{
+  public:
+    MMU(const Params *p) : BaseMMU(p) {}
+};
+
+} // namespace Iris
+
+#endif // __ARCH_ARM_FASTMODEL_IRIS_MMU_HH__