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annotate src/os/bsd/vm/gpu_bsd.cpp @ 9627:1a009b20f816

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broaden Apple include for gpu_bsd, make TraceWarpLoading a product flag
author Morris Meyer <morris.meyer@oracle.com>
date Thu, 09 May 2013 21:07:04 -0400
parents 147162b27799
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1 /*
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2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "runtime/gpu.hpp"
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26 #include "utilities/ostream.hpp"
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27
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28 #ifdef __APPLE__
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29 #include <ApplicationServices/ApplicationServices.h>
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30 #include <IOKit/IOKitLib.h>
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31 #endif
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32
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33 void gpu::probe_gpu() {
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34 #ifdef __APPLE__
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35 set_available(gpu::Bsd::probe_gpu_apple());
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36 if (TraceWarpLoading) {
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37 tty->print_cr("gpu_bsd::probe_gpu(APPLE): %d", gpu::is_available());
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38 }
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39 #else
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40 if (TraceWarpLoading) {
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41 tty->print_cr("gpu_bsd::probe_gpu(not APPLE)");
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42 }
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43 set_available(false);
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44 #endif
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45 }
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46
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47 #ifdef __APPLE__
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48 /*
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49 * This is rudimentary at best, but until we decide on a CUDA Compiler Compatibility
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50 * level, this will have to suffice.
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51 */
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52 bool gpu::Bsd::probe_gpu_apple() {
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53 CGError err = CGDisplayNoErr;
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54 CGDisplayCount displayCount = 0;
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55 CFDataRef vendorID, deviceID, model;
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56 CGDirectDisplayID *displays;
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57 IOOptionBits options = kIORegistryIterateRecursively | kIORegistryIterateParents;
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58 io_registry_entry_t displayPort;
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59
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60 err = CGGetActiveDisplayList(0, NULL, &displayCount);
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61 displays = (CGDirectDisplayID *)calloc((size_t)displayCount, sizeof(CGDirectDisplayID));
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62 err = CGGetActiveDisplayList(displayCount, displays, &displayCount);
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63
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64 for (CGDisplayCount i = 0; i < displayCount; i++) {
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65 displayPort = CGDisplayIOServicePort(displays[i]);
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66 vendorID = (CFDataRef)IORegistryEntrySearchCFProperty(displayPort, kIOServicePlane, CFSTR("vendor-id"),
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67 kCFAllocatorDefault, options);
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68 deviceID = (CFDataRef)IORegistryEntrySearchCFProperty(displayPort, kIOServicePlane, CFSTR("device-id"),
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69 kCFAllocatorDefault, options);
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70 model = (CFDataRef)IORegistryEntrySearchCFProperty(displayPort, kIOServicePlane, CFSTR("model"),
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71 kCFAllocatorDefault, options);
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72 if (TraceWarpLoading) {
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73 tty->print_cr("vendor: 0x%08X", *((UInt32*)CFDataGetBytePtr(vendorID)));
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74 tty->print_cr("device: 0x%08X", *((UInt32*)CFDataGetBytePtr(deviceID)));
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75 tty->print_cr("model: %s", CFDataGetBytePtr(model));
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76 }
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77 UInt32 vendor = *((UInt32*)CFDataGetBytePtr(vendorID));
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78 if (vendor != 0x10DE) {
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79 return false;
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80 } else {
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81 /*
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82 * see https://developer.nvidia.com/cuda-gpus
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83 * see http://en.wikipedia.org/wiki/CUDA#Supported_GPUs
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84 * see http://www.pcidatabase.com/reports.php?type=csv
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85 *
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86 * Only supporting GK104, GK106, GK107 and GK110 GPUs for now,
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87 * which is CUDA Computer Capability 3.0 and greater.
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88 */
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89 switch (*((UInt32*)CFDataGetBytePtr(deviceID))) {
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90 case 0x11C0:
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91 return true; // NVIDIA GeForce GTX 660
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92 default:
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93 return false;
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94 }
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95 }
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96 }
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97 return false;
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98 }
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99 #endif