Hookup FlatMemoryManager for SMMU into SoC

The SMMU is used to control the mappings of peripherals such as the VIC
and NVDEC.

app/CMakeLists.txt

@@ -135,6 +135,7 @@ add_library(skyline SHARED
         ${source_DIR}/skyline/gpu/presentation_engine.cpp
         ${source_DIR}/skyline/gpu/interconnect/command_executor.cpp
         ${source_DIR}/skyline/gpu/interconnect/command_nodes.cpp
+        ${source_DIR}/skyline/soc/smmu.cpp
         ${source_DIR}/skyline/soc/host1x/syncpoint.cpp
         ${source_DIR}/skyline/soc/gm20b/channel.cpp
         ${source_DIR}/skyline/soc/gm20b/gpfifo.cpp

app/src/main/cpp/skyline/soc.h

@@ -3,16 +3,18 @@
 
 #pragma once
 
+#include "soc/smmu.h"
 #include "soc/host1x.h"
 #include "soc/gm20b/gpfifo.h"
 
 namespace skyline::soc {
     /**
      * @brief An interface into all emulated components of the Tegra X1 SoC
-     * @note Refer to the Tegra X1 Processor Block Diagram (1.2) for more information
+     * @note Refer to the Tegra X1 Processor Block Diagram (1.2) in the TRM for more information
      */
     class SOC {
       public:
+        SMMU smmu;
         host1x::Host1X host1x;
 
         SOC(const DeviceState &state) {}

app/src/main/cpp/skyline/soc/smmu.cpp

@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: MPL-2.0
+// Copyright © 2021 Skyline Team and Contributors (https://github.com/skyline-emu/)
+
+#include <common/address_space.inc>
+#include "smmu.h"
+
+namespace skyline {
+    template class FlatAddressSpaceMap<u32, 0, u8 *, nullptr, true, soc::SmmuAddressSpaceBits>;
+    template class FlatMemoryManager<u32, 0, soc::SmmuAddressSpaceBits>;
+}

app/src/main/cpp/skyline/soc/smmu.h

@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: MPL-2.0
+// Copyright © 2021 Skyline Team and Contributors (https://github.com/skyline-emu/)
+
+#pragma once
+
+#include <common/address_space.h>
+
+namespace skyline::soc {
+    static constexpr u8 SmmuAddressSpaceBits{32}; //!< The size of the SMMU AS in bits
+
+    /**
+     * @brief The SMMU (System Memory Management Unit) class handles mapping between the host1x peripheral virtual address space and an application's address space
+     * @note The SMMU is implemented entirely as a template specialization over FlatMemoryManager
+     */
+    using SMMU = FlatMemoryManager<u32, 0, SmmuAddressSpaceBits>;
+}