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comparison src/os_gpu/bsd_ptx/vm/gpu_bsd.cpp @ 11292:5040ec3ff3aa

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Defer PTX on Mac probe to the CUDA driver initialization call
author Morris Meyer <morris.meyer@oracle.com>
date Mon, 12 Aug 2013 15:52:26 -0400
parents d55f24eac4b1
children 4f69a5189e77
comparison
equal deleted inserted replaced
11291:4a6b03a16808 11292:5040ec3ff3aa
23 */ 23 */
24 24
25 #include "runtime/gpu.hpp" 25 #include "runtime/gpu.hpp"
26 #include "utilities/ostream.hpp" 26 #include "utilities/ostream.hpp"
27 27
28 #ifdef __APPLE__
29 #include <ApplicationServices/ApplicationServices.h>
30 #include <IOKit/IOKitLib.h>
31 #endif
32 28
33 void gpu::probe_gpu() { 29 void gpu::probe_gpu() {
34 #ifdef __APPLE__ 30 #ifdef __APPLE__
35 set_available(gpu::Bsd::probe_gpu_apple()); 31 /*
32 * Let the CUDA driver initialization be the gate to GPU for now, pending
33 * a better detection solution for NVIDA PTX and AMD HSAIL.
34 */
35 set_available(true);
36 if (TraceGPUInteraction) { 36 if (TraceGPUInteraction) {
37 tty->print_cr("gpu_bsd::probe_gpu(APPLE): %d", gpu::is_available()); 37 tty->print_cr("gpu_bsd::probe_gpu(APPLE): %d", gpu::is_available());
38 } 38 }
39 #else 39 #else
40 if (TraceGPUInteraction) { 40 if (TraceGPUInteraction) {
42 } 42 }
43 set_available(false); 43 set_available(false);
44 #endif 44 #endif
45 } 45 }
46 46
47 #ifdef __APPLE__
48 /*
49 * This is rudimentary at best, but until we decide on a CUDA Compiler Compatibility
50 * level, this will have to suffice.
51 */
52 bool gpu::Bsd::probe_gpu_apple() {
53 CGError err = CGDisplayNoErr;
54 CGDisplayCount displayCount = 0;
55 CFDataRef vendorID, deviceID, model;
56 CGDirectDisplayID *displays;
57 IOOptionBits options = kIORegistryIterateRecursively | kIORegistryIterateParents;
58 io_registry_entry_t displayPort;
59
60 err = CGGetActiveDisplayList(0, NULL, &displayCount);
61 displays = (CGDirectDisplayID *)calloc((size_t)displayCount, sizeof(CGDirectDisplayID));
62 err = CGGetActiveDisplayList(displayCount, displays, &displayCount);
63
64 for (CGDisplayCount i = 0; i < displayCount; i++) {
65 displayPort = CGDisplayIOServicePort(displays[i]);
66 vendorID = (CFDataRef)IORegistryEntrySearchCFProperty(displayPort, kIOServicePlane, CFSTR("vendor-id"),
67 kCFAllocatorDefault, options);
68 deviceID = (CFDataRef)IORegistryEntrySearchCFProperty(displayPort, kIOServicePlane, CFSTR("device-id"),
69 kCFAllocatorDefault, options);
70 model = (CFDataRef)IORegistryEntrySearchCFProperty(displayPort, kIOServicePlane, CFSTR("model"),
71 kCFAllocatorDefault, options);
72 if (TraceGPUInteraction) {
73 tty->print_cr("vendor: 0x%08X", *((UInt32*)CFDataGetBytePtr(vendorID)));
74 tty->print_cr("device: 0x%08X", *((UInt32*)CFDataGetBytePtr(deviceID)));
75 tty->print_cr("model: %s", CFDataGetBytePtr(model));
76 }
77 UInt32 vendor = *((UInt32*)CFDataGetBytePtr(vendorID));
78 if (vendor != 0x10DE) {
79 return false;
80 } else {
81 /*
82 * see https://developer.nvidia.com/cuda-gpus
83 * see http://en.wikipedia.org/wiki/CUDA#Supported_GPUs
84 * see http://www.pcidatabase.com/reports.php?type=csv
85 *
86 * Only supporting GK104, GK106, GK107 and GK110 GPUs for now,
87 * which is CUDA Computer Capability 3.0 and greater.
88 */
89 switch (*((UInt32*)CFDataGetBytePtr(deviceID))) {
90 case 0x11C0:
91 return true; // NVIDIA GeForce GTX 660
92 default:
93 return false;
94 }
95 }
96 }
97 return false;
98 }
99 #endif