2 files changed, 94 insertions, 0 deletions
diff --git a/src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp b/src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp
new file mode 100644
index 000000000..2078f2187
--- /dev/null
+++ b/src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp
@@ -0,0 +1,46 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/assert.h"
+#include "common/logging/log.h"
+#include "core/hle/service/nvdrv/devices/nvhost_ctrl.h"
+
+namespace Service {
+namespace Nvidia {
+namespace Devices {
+
+u32 nvhost_ctrl::ioctl(u32 command, const std::vector<u8>& input, std::vector<u8>& output) {
+    LOG_DEBUG(Service_NVDRV, "called, command=0x%08x, input_size=0x%lx, output_size=0x%lx", command,
+              input.size(), output.size());
+
+    switch (command) {
+    case IocGetConfigCommand:
+        return NvOsGetConfigU32(input, output);
+    }
+    UNIMPLEMENTED();
+    return 0;
+}
+
+u32 nvhost_ctrl::NvOsGetConfigU32(const std::vector<u8>& input, std::vector<u8>& output) {
+    IocGetConfigParams params;
+    std::memcpy(&params, input.data(), sizeof(params));
+    LOG_DEBUG(Service_NVDRV, "called, setting=%s!%s", params.domain_str.data(),
+              params.param_str.data());
+
+    if (!strcmp(params.domain_str.data(), "nv")) {
+        if (!strcmp(params.param_str.data(), "NV_MEMORY_PROFILER")) {
+            params.config_str[0] = '1';
+        } else {
+            UNIMPLEMENTED();
+        }
+    } else {
+        UNIMPLEMENTED();
+    }
+    std::memcpy(output.data(), &params, sizeof(params));
+    return 0;
+}
+
+} // namespace Devices
+} // namespace Nvidia
+} // namespace Service
diff --git a/src/core/hle/service/nvdrv/devices/nvhost_ctrl.h b/src/core/hle/service/nvdrv/devices/nvhost_ctrl.h
new file mode 100644
index 000000000..abce35e17
--- /dev/null
+++ b/src/core/hle/service/nvdrv/devices/nvhost_ctrl.h
@@ -0,0 +1,48 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <cstdlib>
+#include <cstring>
+#include <vector>
+#include "common/common_types.h"
+#include "core/hle/service/nvdrv/devices/nvdevice.h"
+
+namespace Service {
+namespace Nvidia {
+namespace Devices {
+
+class nvhost_ctrl final : public nvdevice {
+public:
+    nvhost_ctrl() = default;
+    ~nvhost_ctrl() override = default;
+
+    u32 ioctl(u32 command, const std::vector<u8>& input, std::vector<u8>& output) override;
+
+private:
+    enum IoctlCommands {
+        IocSyncptReadCommand = 0xC0080014,
+        IocSyncptIncrCommand = 0x40040015,
+        IocSyncptWaitCommand = 0xC00C0016,
+        IocModuleMutexCommand = 0x40080017,
+        IocModuleRegRDWRCommand = 0xC008010E,
+        IocSyncptWaitexCommand = 0xC0100019,
+        IocSyncptReadMaxCommand = 0xC008001A,
+        IocGetConfigCommand = 0xC183001B,
+    };
+
+    struct IocGetConfigParams {
+        std::array<char, 0x41> domain_str;
+        std::array<char, 0x41> param_str;
+        std::array<char, 0x101> config_str;
+    };
+
+    u32 NvOsGetConfigU32(const std::vector<u8>& input, std::vector<u8>& output);
+};
+
+} // namespace Devices
+} // namespace Nvidia
+} // namespace Service