Remove input, output buffers from process kernel
[tidl/tidl-api.git] / tidl_api / src / ocl_device.cpp
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30 #include <cstdlib>
31 #include <cassert>
32 using std::size_t;
34 #include <iostream>
36 #include "ocl_device.h"
37 #include "ocl_util.h"
38 #include "trace.h"
39 #include "../dsp/ocl_wrapper.dsp_h"
41 using namespace tidl;
43 static const char* error2string(cl_int err);
44 static void        errorCheck(cl_int ret, int line);
46 Device::Device(cl_device_type t, const DeviceIds& ids):
47                 device_type_m(t), device_ids_m(ids)
48 {
49     TRACE::print("\tOCL Device: %s created\n",
50               device_type_m == CL_DEVICE_TYPE_ACCELERATOR ? "DSP" :
51               device_type_m == CL_DEVICE_TYPE_CUSTOM ? "EVE" : "Unknown");
53     for (int i = 0; i < MAX_DEVICES; i++)
54         queue_m[i] = nullptr;
56 }
58 DspDevice::DspDevice(const DeviceIds& ids, const std::string &binary_filename):
59               Device(CL_DEVICE_TYPE_ACCELERATOR, ids)
60 {
61     cl_uint num_devices_found;
62     cl_device_id device_ids[MAX_DEVICES];
64     cl_int errcode = clGetDeviceIDs(0,               // platform
65                              device_type_m,          // device_type
66                              MAX_DEVICES,            // num_entries
67                              device_ids,             // devices
68                              &num_devices_found);    // num_devices
69     errorCheck(errcode, __LINE__);
71     if (num_devices_found != 1)
72         throw Exception("OpenCL DSP device not found",
73                         __FILE__, __FUNCTION__, __LINE__);
75     cl_int num_compute_units;
76     errcode = clGetDeviceInfo(device_ids[0],
77                               CL_DEVICE_MAX_COMPUTE_UNITS,
78                               sizeof(num_compute_units),
79                               &num_compute_units,
80                               nullptr);
82     if (num_compute_units == 1)
83     {
84         context_m = clCreateContextFromType(0,              // properties
85                                             device_type_m,  // device_type
86                                             0,              // pfn_notify
87                                             0,              // user_data
88                                             &errcode);
89         errorCheck(errcode, __LINE__);
91         // Queue 0 on device 0
92         queue_m[0] = clCreateCommandQueue(context_m,
93                                           device_ids[0],
94                                           0,
95                                           &errcode);
96         errorCheck(errcode, __LINE__);
97         BuildProgramFromBinary(binary_filename, device_ids, 1);
98     }
99     else
100     {
101         const cl_uint NUM_SUB_DEVICES = 2;
103         // Create 2 sub-device's, each consisting of a C66x DSP
104         cl_device_partition_property properties[3] =
105                                         { CL_DEVICE_PARTITION_EQUALLY, 1, 0 };
107         // Query the number of sub-devices that can be created
108         cl_uint n_sub_devices = 0;
109         errcode = clCreateSubDevices(device_ids[0],      // in_device
110                                      properties,         // properties
111                                      0,                  // num_devices
112                                      NULL,               // out_devices
113                                      &n_sub_devices);    // num_devices_ret
114         errorCheck(errcode, __LINE__);
116         assert(n_sub_devices == NUM_SUB_DEVICES);
118         // Create the sub-devices
119         cl_device_id sub_devices[NUM_SUB_DEVICES] = {0, 0};
120         errcode = clCreateSubDevices(device_ids[0],        // in_device
121                                      properties,           // properties
122                                      n_sub_devices,        // num_devices
123                                      sub_devices,          // out_devices
124                                      nullptr);             // num_devices_ret
125         errorCheck(errcode, __LINE__);
127         // Create a context containing the sub-devices
128         context_m = clCreateContext(NULL,               // properties
129                                     NUM_SUB_DEVICES,    // num_devices
130                                     sub_devices,        // devices
131                                     NULL,               // pfn_notify
132                                     NULL,               // user_data
133                                     &errcode);          // errcode_ret
134         errorCheck(errcode, __LINE__);
136         // Create queues to each sub-device
137         for (auto id : device_ids_m)
138         {
139             int index = static_cast<int>(id);
140             queue_m[index] = clCreateCommandQueue(context_m,
141                                           sub_devices[index],
142                                           0,
143                                           &errcode);
144             errorCheck(errcode, __LINE__);
145         }
147         BuildProgramFromBinary(binary_filename, sub_devices, NUM_SUB_DEVICES);
148     }
150     errcode = clGetDeviceInfo(device_ids[0],
151                                 CL_DEVICE_MAX_CLOCK_FREQUENCY,
152                                 sizeof(freq_in_mhz_m),
153                                 &freq_in_mhz_m,
154                                 nullptr);
155     errorCheck(errcode, __LINE__);
159 EveDevice::EveDevice(const DeviceIds& ids, const std::string &kernel_names):
160             Device(CL_DEVICE_TYPE_CUSTOM, ids)
162     cl_uint num_devices_found;
163     cl_device_id all_device_ids[MAX_DEVICES];
165     // Find all the OpenCL devices available of the given type
166     cl_int errcode = clGetDeviceIDs(0,              // platform
167                              device_type_m,         // device_type
168                              MAX_DEVICES,           // num_entries
169                              all_device_ids,        // devices
170                              &num_devices_found);   // num_devices
171     errorCheck(errcode, __LINE__);
173     assert (num_devices_found >= device_ids_m.size());
175     context_m = clCreateContextFromType(0,              // properties
176                                         device_type_m,  // device_type
177                                         0,              // pfn_notify
178                                         0,              // user_data
179                                         &errcode);
180     errorCheck(errcode, __LINE__);
183     // Create command queues to OpenCL devices specified by the
184     // device_ids_m set.
185     for (auto id : device_ids_m)
186     {
187         int index = static_cast<int>(id);
188         queue_m[index] = clCreateCommandQueue(context_m,
189                                       all_device_ids[index],
190                                       0,
191                                       &errcode);
192         errorCheck(errcode, __LINE__);
193     }
195     BuildProgramFromBinary(kernel_names, all_device_ids, device_ids_m.size());
197     errcode = clGetDeviceInfo(all_device_ids[0],
198                                 CL_DEVICE_MAX_CLOCK_FREQUENCY,
199                                 sizeof(freq_in_mhz_m),
200                                 &freq_in_mhz_m,
201                                 nullptr);
202     errorCheck(errcode, __LINE__);
206 bool DspDevice::BuildProgramFromBinary(const std::string &BFN,
207                                        cl_device_id device_ids[],
208                                        int num_devices)
210     size_t bin_len = ocl_wrapper_dsp_bin_len;
212     assert (bin_len != 0);
214     // Casting to make ocl_read_binary work with clCreateProgramWithBinary
215     const unsigned char *bin_arrc = reinterpret_cast <const unsigned char *>
216                                     (ocl_wrapper_dsp_bin);
218     size_t lengths[num_devices];
219     for (int i=0; i < num_devices; i++) lengths[i] = bin_len;
221     const unsigned char* binaries[num_devices];
222     for (int i=0; i < num_devices; i++) binaries[i] = bin_arrc;
224     cl_int err;
225     program_m = clCreateProgramWithBinary(context_m,
226                                           num_devices,
227                                           device_ids,          // device_list
228                                           lengths,
229                                           binaries,
230                                           0,                   // binary_status
231                                           &err);
232     errorCheck(err, __LINE__);
234     const char *options = "";
235     err = clBuildProgram(program_m, num_devices, device_ids, options, 0, 0);
236     errorCheck(err, __LINE__);
238     return true;
241 bool EveDevice::BuildProgramFromBinary(const std::string& kernel_names,
242                                        cl_device_id device_ids[],
243                                        int num_devices)
245     cl_int err;
246     cl_device_id executor_device_ids[MAX_DEVICES];
248     int i = 0;
249     for (auto id : device_ids_m)
250         executor_device_ids[i++] = device_ids[static_cast<int>(id)];
252     program_m = clCreateProgramWithBuiltInKernels(context_m,
253                                           num_devices,
254                                           executor_device_ids,  // device_list
255                                           kernel_names.c_str(),
256                                           &err);
257     errorCheck(err, __LINE__);
259     return true;
262 Kernel::Kernel(Device* device, const std::string& name,
263                const KernelArgs& args, uint8_t device_index):
264            name_m(name), device_m(device), device_index_m(device_index),
265            is_running_m(false)
267     TRACE::print("Creating kernel %s\n", name.c_str());
268     cl_int err;
269     kernel_m = clCreateKernel(device_m->program_m, name_m.c_str(), &err);
270     errorCheck(err, __LINE__);
272     int arg_index = 0;
273     for (auto arg : args)
274     {
275         if (!arg.isLocal())
276         {
277             if (arg.kind() == ArgInfo::Kind::BUFFER)
278             {
279                 cl_mem buffer = device_m->CreateBuffer(arg);
281                 clSetKernelArg(kernel_m, arg_index, sizeof(cl_mem), &buffer);
282                 TRACE::print("  Arg[%d]: %p\n", arg_index, buffer);
284                 buffers_m.push_back(buffer);
285             }
286             else if (arg.kind() == ArgInfo::Kind::SCALAR)
287             {
288                 clSetKernelArg(kernel_m, arg_index, arg.size(), arg.ptr());
289                 TRACE::print("  Arg[%d]: %p\n", arg_index, arg.ptr());
290             }
291             else
292             {
293                 assert ("ArgInfo kind not supported");
294             }
295         }
296         else
297         {
298             clSetKernelArg(kernel_m, arg_index, arg.size(), NULL);
299             TRACE::print("  Arg[%d]: local, %d\n", arg_index, arg.size());
300         }
301         arg_index++;
303     }
306 Kernel& Kernel::RunAsync()
308     // Execute kernel
309     TRACE::print("\tKernel: device %d executing %s\n", device_index_m,
310                                                        name_m.c_str());
311     cl_int ret = clEnqueueTask(device_m->queue_m[device_index_m],
312                                kernel_m, 0, 0, &event_m);
313     errorCheck(ret, __LINE__);
314     is_running_m = true;
316     return *this;
320 bool Kernel::Wait()
322     // Wait called without a corresponding RunAsync
323     if (!is_running_m)
324         return false;
326     TRACE::print("\tKernel: waiting...\n");
327     cl_int ret = clWaitForEvents(1, &event_m);
328     errorCheck(ret, __LINE__);
329     ret = clReleaseEvent(event_m);
330     errorCheck(ret, __LINE__);
331     TRACE::print("\tKernel: finished execution\n");
333     is_running_m = false;
334     return true;
337 Kernel::~Kernel()
339     for (auto b : buffers_m)
340         device_m->ReleaseBuffer(b);
342     clReleaseKernel(kernel_m);
345 cl_mem Device::CreateBuffer(const ArgInfo &Arg)
347     size_t  size     = Arg.size();
348     void   *host_ptr = Arg.ptr();
350     if (host_ptr == nullptr)
351     {
352         TRACE::print("\tOCL Create B:%p\n", nullptr);
353         return nullptr;
354     }
356     bool hostPtrInCMEM = __is_in_malloced_region(host_ptr);
358     // Conservative till we have sufficient information.
359     cl_mem_flags flag = CL_MEM_READ_WRITE;
361     if (hostPtrInCMEM) flag |= (cl_mem_flags)CL_MEM_USE_HOST_PTR;
362     else               flag |= (cl_mem_flags)CL_MEM_COPY_HOST_PTR;
364     cl_int       errcode;
365     cl_mem buffer = clCreateBuffer(context_m,
366                                    flag,
367                                    size,
368                                    host_ptr,
369                                    &errcode);
370     errorCheck(errcode, __LINE__);
372     TRACE::print("\tOCL Create B:%p\n", buffer);
374     return buffer;
377 void Device::ReleaseBuffer(cl_mem M)
379     TRACE::print("\tOCL Release B:%p\n", M);
380     clReleaseMemObject(M);
383 /// Release resources associated with an OpenCL device
384 Device::~Device()
386     TRACE::print("\tOCL Device: deleted\n");
387     for (unsigned int i = 0; i < device_ids_m.size(); i++)
388     {
389         clFinish(queue_m[i]);
390         clReleaseCommandQueue (queue_m[i]);
391     }
393     clReleaseProgram      (program_m);
394     clReleaseContext      (context_m);
397 void errorCheck(cl_int ret, int line)
399     if (ret != CL_SUCCESS)
400     {
401         std::cerr << "ERROR: [ Line: " << line << "] " << error2string(ret) << std::endl;
402         exit(ret);
403     }
406 /// Convert OpenCL error codes to a string
407 const char* error2string(cl_int err)
409     switch(err)
410     {
411          case   0: return "CL_SUCCESS";
412          case  -1: return "CL_DEVICE_NOT_FOUND";
413          case  -2: return "CL_DEVICE_NOT_AVAILABLE";
414          case  -3: return "CL_COMPILER_NOT_AVAILABLE";
415          case  -4: return "CL_MEM_OBJECT_ALLOCATION_FAILURE";
416          case  -5: return "CL_OUT_OF_RESOURCES";
417          case  -6: return "CL_OUT_OF_HOST_MEMORY";
418          case  -7: return "CL_PROFILING_INFO_NOT_AVAILABLE";
419          case  -8: return "CL_MEM_COPY_OVERLAP";
420          case  -9: return "CL_IMAGE_FORMAT_MISMATCH";
421          case -10: return "CL_IMAGE_FORMAT_NOT_SUPPORTED";
422          case -11: return "CL_BUILD_PROGRAM_FAILURE";
423          case -12: return "CL_MAP_FAILURE";
425          case -30: return "CL_INVALID_VALUE";
426          case -31: return "CL_INVALID_DEVICE_TYPE";
427          case -32: return "CL_INVALID_PLATFORM";
428          case -33: return "CL_INVALID_DEVICE";
429          case -34: return "CL_INVALID_CONTEXT";
430          case -35: return "CL_INVALID_QUEUE_PROPERTIES";
431          case -36: return "CL_INVALID_COMMAND_QUEUE";
432          case -37: return "CL_INVALID_HOST_PTR";
433          case -38: return "CL_INVALID_MEM_OBJECT";
434          case -39: return "CL_INVALID_IMAGE_FORMAT_DESCRIPTOR";
435          case -40: return "CL_INVALID_IMAGE_SIZE";
436          case -41: return "CL_INVALID_SAMPLER";
437          case -42: return "CL_INVALID_BINARY";
438          case -43: return "CL_INVALID_BUILD_OPTIONS";
439          case -44: return "CL_INVALID_PROGRAM";
440          case -45: return "CL_INVALID_PROGRAM_EXECUTABLE";
441          case -46: return "CL_INVALID_KERNEL_NAME";
442          case -47: return "CL_INVALID_KERNEL_DEFINITION";
443          case -48: return "CL_INVALID_KERNEL";
444          case -49: return "CL_INVALID_ARG_INDEX";
445          case -50: return "CL_INVALID_ARG_VALUE";
446          case -51: return "CL_INVALID_ARG_SIZE";
447          case -52: return "CL_INVALID_KERNEL_ARGS";
448          case -53: return "CL_INVALID_WORK_DIMENSION";
449          case -54: return "CL_INVALID_WORK_GROUP_SIZE";
450          case -55: return "CL_INVALID_WORK_ITEM_SIZE";
451          case -56: return "CL_INVALID_GLOBAL_OFFSET";
452          case -57: return "CL_INVALID_EVENT_WAIT_LIST";
453          case -58: return "CL_INVALID_EVENT";
454          case -59: return "CL_INVALID_OPERATION";
455          case -60: return "CL_INVALID_GL_OBJECT";
456          case -61: return "CL_INVALID_BUFFER_SIZE";
457          case -62: return "CL_INVALID_MIP_LEVEL";
458          case -63: return "CL_INVALID_GLOBAL_WORK_SIZE";
459          default: return "Unknown OpenCL error";
460     }
463 Device::Ptr Device::Create(DeviceType core_type, const DeviceIds& ids,
464                            const std::string& name)
466     Device::Ptr p(nullptr);
467     if (core_type == DeviceType::DSP)
468         p.reset(new DspDevice(ids, name));
469     else if (core_type == DeviceType::EVE)
470         p.reset(new EveDevice(ids, name));
472     return p;
475 static bool PlatformIsAM57()
477     cl_platform_id id;
478     cl_int err;
480     err = clGetPlatformIDs(1, &id, nullptr);
481     if (err != CL_SUCCESS) return false;
483     // Check if the device name is AM57
484     size_t length;
485     err = clGetPlatformInfo(id, CL_PLATFORM_NAME, 0, nullptr, &length);
486     if (err != CL_SUCCESS) return false;
488     std::unique_ptr<char> name(new char[length]);
490     err = clGetPlatformInfo(id, CL_PLATFORM_NAME, length, name.get(), nullptr);
491     if (err != CL_SUCCESS) return false;
493     std::string platform_name(name.get());
495     if (platform_name.find("AM57") == std::string::npos)
496         return false;
498     return true;
501 // TI DL is supported on AM57x - EVE or C66x devices
502 uint32_t Device::GetNumDevices(DeviceType device_type)
504     if (!PlatformIsAM57()) return 0;
506     // Convert DeviceType to OpenCL device type
507     cl_device_type t = (device_type == DeviceType::EVE) ?
508                                     CL_DEVICE_TYPE_CUSTOM :
509                                     CL_DEVICE_TYPE_ACCELERATOR;
511     // Find all the OpenCL devices available
512     cl_uint num_devices_found;
513     cl_device_id all_device_ids[MAX_DEVICES];
515     cl_int errcode = clGetDeviceIDs(0,                   // platform
516                                     t,                   // device_type
517                                     MAX_DEVICES,         // num_entries
518                                     all_device_ids,      // devices
519                                     &num_devices_found); // num_devices
522     if (errcode != CL_SUCCESS)            return 0;
523     if (num_devices_found == 0)           return 0;
525     // DSP, return the number of compute units since we maintain a
526     // queue to each compute unit (i.e. C66x DSP)
527     if (t == CL_DEVICE_TYPE_ACCELERATOR)
528     {
529         cl_int num_compute_units;
530         errcode = clGetDeviceInfo(all_device_ids[0],
531                                 CL_DEVICE_MAX_COMPUTE_UNITS,
532                                 sizeof(num_compute_units),
533                                 &num_compute_units,
534                                 nullptr);
535         if (errcode != CL_SUCCESS)
536             return 0;
538         return num_compute_units;
539     }
541     // EVE, return the number of devices since each EVE is a device
542     return num_devices_found;