--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/os_gpu/bsd_ptx/vm/gpu_bsd.cpp	Thu Jul 25 22:15:30 2013 -0400
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "runtime/gpu.hpp"
+#include "utilities/ostream.hpp"
+
+#ifdef __APPLE__
+#include <ApplicationServices/ApplicationServices.h>
+#include <IOKit/IOKitLib.h>
+#endif
+
+void gpu::probe_gpu() {
+#ifdef __APPLE__
+  set_available(gpu::Bsd::probe_gpu_apple());
+  if (TraceGPUInteraction) {
+    tty->print_cr("gpu_bsd::probe_gpu(APPLE): %d", gpu::is_available());
+  }
+#else
+  if (TraceGPUInteraction) {
+    tty->print_cr("gpu_bsd::probe_gpu(not APPLE)");
+  }
+  set_available(false);
+#endif
+}
+
+#ifdef __APPLE__
+/*
+ * This is rudimentary at best, but until we decide on a CUDA Compiler Compatibility
+ * level, this will have to suffice.
+ */
+bool gpu::Bsd::probe_gpu_apple() {
+  CGError             err = CGDisplayNoErr;
+  CGDisplayCount      displayCount = 0;
+  CFDataRef           vendorID, deviceID, model;
+  CGDirectDisplayID   *displays;
+  IOOptionBits        options = kIORegistryIterateRecursively | kIORegistryIterateParents;
+  io_registry_entry_t displayPort;
+
+  err = CGGetActiveDisplayList(0, NULL, &displayCount);
+  displays = (CGDirectDisplayID *)calloc((size_t)displayCount, sizeof(CGDirectDisplayID));
+  err = CGGetActiveDisplayList(displayCount, displays, &displayCount);
+
+  for (CGDisplayCount i = 0; i < displayCount; i++) {
+	displayPort = CGDisplayIOServicePort(displays[i]);
+	vendorID = (CFDataRef)IORegistryEntrySearchCFProperty(displayPort, kIOServicePlane, CFSTR("vendor-id"),
+                                               kCFAllocatorDefault, options);
+	deviceID = (CFDataRef)IORegistryEntrySearchCFProperty(displayPort, kIOServicePlane, CFSTR("device-id"),
+                                               kCFAllocatorDefault, options);
+	model = (CFDataRef)IORegistryEntrySearchCFProperty(displayPort, kIOServicePlane, CFSTR("model"),
+                                            kCFAllocatorDefault, options);
+    if (TraceGPUInteraction) {
+      tty->print_cr("vendor: 0x%08X", *((UInt32*)CFDataGetBytePtr(vendorID)));
+      tty->print_cr("device: 0x%08X", *((UInt32*)CFDataGetBytePtr(deviceID)));
+      tty->print_cr("model: %s", CFDataGetBytePtr(model));
+    }
+    UInt32 vendor = *((UInt32*)CFDataGetBytePtr(vendorID));
+    if (vendor != 0x10DE) {
+      return false;
+    } else {
+      /*
+       * see https://developer.nvidia.com/cuda-gpus
+       * see http://en.wikipedia.org/wiki/CUDA#Supported_GPUs
+       * see http://www.pcidatabase.com/reports.php?type=csv
+       *
+       * Only supporting GK104, GK106, GK107 and GK110 GPUs for now,
+       * which is CUDA Computer Capability 3.0 and greater.
+       */
+      switch (*((UInt32*)CFDataGetBytePtr(deviceID))) {
+        case 0x11C0:
+          return true;  // NVIDIA GeForce GTX 660
+        default:
+          return false;
+      }
+    }
+  }
+  return false;
+}
+#endif