1 files changed, 144 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/gpu_info_util/SystemInfo_linux.cpp b/src/3rdparty/angle/src/gpu_info_util/SystemInfo_linux.cpp
new file mode 100644
index 0000000000..98f000b069
--- /dev/null
+++ b/src/3rdparty/angle/src/gpu_info_util/SystemInfo_linux.cpp
@@ -0,0 +1,144 @@
+//
+// Copyright (c) 2013-2017 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// SystemInfo_linux.cpp: implementation of the Linux-specific parts of SystemInfo.h
+
+#include "gpu_info_util/SystemInfo_internal.h"
+
+#include <cstring>
+#include <fstream>
+
+#include "common/angleutils.h"
+#include "common/debug.h"
+
+namespace angle
+{
+
+namespace
+{
+
+bool ReadWholeFile(const char *filename, std::string *content)
+{
+    std::ifstream file(filename);
+
+    if (!file)
+    {
+        return false;
+    }
+
+    *content = std::string(std::istreambuf_iterator<char>(file), std::istreambuf_iterator<char>());
+    return true;
+}
+
+// Scan /sys/module/amdgpu/version.
+bool GetAMDBrahmaDriverVersion(std::string *version)
+{
+    *version = "";
+    std::string content;
+
+    return ReadWholeFile("/sys/module/amdgpu/version", &content) &&
+           ParseAMDBrahmaDriverVersion(content, version);
+}
+
+// Scan /etc/ati/amdpcsdb.default for "ReleaseVersion".
+bool GetAMDCatalystDriverVersion(std::string *version)
+{
+    *version = "";
+    std::string content;
+
+    return ReadWholeFile("/etc/ati/amdpcsdb.default", &content) &&
+           ParseAMDCatalystDriverVersion(content, version);
+}
+
+}  // anonymous namespace
+
+#if !defined(GPU_INFO_USE_X11)
+bool GetNvidiaDriverVersionWithXNVCtrl(std::string *version)
+{
+    return false;
+}
+#endif
+
+#if !defined(GPU_INFO_USE_LIBPCI)
+bool GetPCIDevicesWithLibPCI(std::vector<GPUDeviceInfo> *devices)
+{
+    return false;
+}
+#endif
+
+bool GetSystemInfo(SystemInfo *info)
+{
+    if (!GetPCIDevicesWithLibPCI(&(info->gpus)))
+    {
+        return false;
+    }
+
+    if (info->gpus.size() == 0)
+    {
+        return false;
+    }
+
+    FindPrimaryGPU(info);
+
+    for (size_t i = 0; i < info->gpus.size(); ++i)
+    {
+        GPUDeviceInfo *gpu = &info->gpus[i];
+
+        // New GPUs might be added inside this loop, don't query for their driver version again
+        if (!gpu->driverVendor.empty())
+        {
+            continue;
+        }
+
+        if (IsAMD(gpu->vendorId))
+        {
+            std::string version;
+            if (GetAMDBrahmaDriverVersion(&version))
+            {
+                gpu->driverVendor  = "AMD (Brahma)";
+                gpu->driverVersion = std::move(version);
+            }
+            else if (GetAMDCatalystDriverVersion(&version))
+            {
+                gpu->driverVendor  = "AMD (Catalyst)";
+                gpu->driverVersion = std::move(version);
+            }
+        }
+
+        if (IsNvidia(gpu->vendorId))
+        {
+            std::string version;
+            if (GetNvidiaDriverVersionWithXNVCtrl(&version))
+            {
+                gpu->driverVendor  = "Nvidia";
+                gpu->driverVersion = std::move(version);
+            }
+        }
+
+        // In dual-GPU cases the PCI scan sometimes only gives us the Intel GPU.
+        // If we are able to query for the Nvidia driver version, it means there
+        // was hidden Nvidia GPU, so we add it to the list and make it primary.
+        if (IsIntel(gpu->vendorId) && info->gpus.size() == 1)
+        {
+            std::string version;
+            if (GetNvidiaDriverVersionWithXNVCtrl(&version))
+            {
+                GPUDeviceInfo nvidiaInfo;
+                nvidiaInfo.vendorId = kVendorID_Nvidia;
+                nvidiaInfo.deviceId = 0;
+                gpu->driverVendor   = "Nvidia";
+                gpu->driverVersion  = std::move(version);
+
+                info->gpus.emplace_back(std::move(nvidiaInfo));
+                info->isOptimus = true;
+            }
+        }
+    }
+
+    return true;
+}
+
+}  // namespace angle