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699 lines
21 KiB
699 lines
21 KiB
/* |
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* Copyright 2011 Con Kolivas |
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*/ |
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#include "config.h" |
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#ifdef HAVE_OPENCL |
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|
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#include <signal.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <stdio.h> |
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#include <sys/types.h> |
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|
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#ifdef WIN32 |
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#include <winsock2.h> |
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#else |
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#include <sys/socket.h> |
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#include <netinet/in.h> |
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#include <netdb.h> |
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#endif |
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#include <time.h> |
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#include <sys/time.h> |
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#include <pthread.h> |
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#include <sys/stat.h> |
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#include <unistd.h> |
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#include "findnonce.h" |
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#include "ocl.h" |
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extern int opt_vectors; |
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extern int opt_worksize; |
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int opt_platform_id; |
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char *file_contents(const char *filename, int *length) |
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{ |
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char *fullpath = alloca(PATH_MAX); |
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void *buffer; |
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FILE *f; |
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strcpy(fullpath, opt_kernel_path); |
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strcat(fullpath, filename); |
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/* Try in the optional kernel path or installed prefix first */ |
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f = fopen(fullpath, "rb"); |
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if (!f) { |
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/* Then try from the path cgminer was called */ |
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strcpy(fullpath, cgminer_path); |
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strcat(fullpath, filename); |
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f = fopen(fullpath, "rb"); |
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} |
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/* Finally try opening it directly */ |
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if (!f) |
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f = fopen(filename, "rb"); |
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if (!f) { |
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applog(LOG_ERR, "Unable to open %s or %s for reading", filename, fullpath); |
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return NULL; |
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} |
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fseek(f, 0, SEEK_END); |
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*length = ftell(f); |
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fseek(f, 0, SEEK_SET); |
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buffer = malloc(*length+1); |
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*length = fread(buffer, 1, *length, f); |
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fclose(f); |
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((char*)buffer)[*length] = '\0'; |
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return (char*)buffer; |
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} |
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int clDevicesNum(void) { |
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cl_int status; |
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char pbuff[256]; |
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cl_uint numDevices; |
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cl_uint numPlatforms; |
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cl_platform_id *platforms; |
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cl_platform_id platform = NULL; |
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unsigned int most_devices = 0, i; |
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status = clGetPlatformIDs(0, NULL, &numPlatforms); |
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/* If this fails, assume no GPUs. */ |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "clGetPlatformsIDs failed (no OpenCL SDK installed?)"); |
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return -1; |
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} |
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if (numPlatforms == 0) { |
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applog(LOG_ERR, "clGetPlatformsIDs returned no platforms (no OpenCL SDK installed?)"); |
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return -1; |
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} |
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platforms = (cl_platform_id *)alloca(numPlatforms*sizeof(cl_platform_id)); |
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status = clGetPlatformIDs(numPlatforms, platforms, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Getting Platform Ids. (clGetPlatformsIDs)"); |
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return -1; |
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} |
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for (i = 0; i < numPlatforms; i++) { |
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status = clGetPlatformInfo( platforms[i], CL_PLATFORM_VENDOR, sizeof(pbuff), pbuff, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Getting Platform Info. (clGetPlatformInfo)"); |
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return -1; |
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} |
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platform = platforms[i]; |
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applog(LOG_INFO, "CL Platform %d vendor: %s", i, pbuff); |
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status = clGetPlatformInfo(platform, CL_PLATFORM_NAME, sizeof(pbuff), pbuff, NULL); |
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if (status == CL_SUCCESS) |
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applog(LOG_INFO, "CL Platform %d name: %s", i, pbuff); |
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status = clGetPlatformInfo(platform, CL_PLATFORM_VERSION, sizeof(pbuff), pbuff, NULL); |
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if (status == CL_SUCCESS) |
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applog(LOG_INFO, "CL Platform %d version: %s", i, pbuff); |
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status = clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, 0, NULL, &numDevices); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Getting Device IDs (num)"); |
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return -1; |
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} |
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applog(LOG_INFO, "Platform %d devices: %d", i, numDevices); |
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if (numDevices > most_devices) |
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most_devices = numDevices; |
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} |
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return most_devices; |
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} |
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static int advance(char **area, unsigned *remaining, const char *marker) |
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{ |
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char *find = memmem(*area, *remaining, marker, strlen(marker)); |
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if (!find) { |
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if (opt_debug) |
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applog(LOG_DEBUG, "Marker \"%s\" not found", marker); |
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return 0; |
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} |
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*remaining -= find - *area; |
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*area = find; |
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return 1; |
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} |
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#define OP3_INST_BFE_UINT 4ULL |
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#define OP3_INST_BFE_INT 5ULL |
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#define OP3_INST_BFI_INT 6ULL |
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#define OP3_INST_BIT_ALIGN_INT 12ULL |
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#define OP3_INST_BYTE_ALIGN_INT 13ULL |
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void patch_opcodes(char *w, unsigned remaining) |
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{ |
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uint64_t *opcode = (uint64_t *)w; |
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int patched = 0; |
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int count_bfe_int = 0; |
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int count_bfe_uint = 0; |
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int count_byte_align = 0; |
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while (42) { |
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int clamp = (*opcode >> (32 + 31)) & 0x1; |
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int dest_rel = (*opcode >> (32 + 28)) & 0x1; |
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int alu_inst = (*opcode >> (32 + 13)) & 0x1f; |
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int s2_neg = (*opcode >> (32 + 12)) & 0x1; |
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int s2_rel = (*opcode >> (32 + 9)) & 0x1; |
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int pred_sel = (*opcode >> 29) & 0x3; |
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if (!clamp && !dest_rel && !s2_neg && !s2_rel && !pred_sel) { |
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if (alu_inst == OP3_INST_BFE_INT) { |
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count_bfe_int++; |
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} else if (alu_inst == OP3_INST_BFE_UINT) { |
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count_bfe_uint++; |
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} else if (alu_inst == OP3_INST_BYTE_ALIGN_INT) { |
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count_byte_align++; |
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// patch this instruction to BFI_INT |
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*opcode &= 0xfffc1fffffffffffULL; |
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*opcode |= OP3_INST_BFI_INT << (32 + 13); |
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patched++; |
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} |
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} |
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if (remaining <= 8) |
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break; |
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opcode++; |
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remaining -= 8; |
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} |
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if (opt_debug) { |
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applog(LOG_DEBUG, "Potential OP3 instructions identified: " |
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"%i BFE_INT, %i BFE_UINT, %i BYTE_ALIGN", |
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count_bfe_int, count_bfe_uint, count_byte_align); |
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applog(LOG_DEBUG, "Patched a total of %i BFI_INT instructions", patched); |
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} |
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} |
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_clState *initCl(unsigned int gpu, char *name, size_t nameSize) |
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{ |
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_clState *clState = calloc(1, sizeof(_clState)); |
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bool patchbfi = false, prog_built = false; |
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cl_platform_id platform = NULL; |
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cl_platform_id* platforms; |
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cl_device_id *devices; |
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cl_uint numPlatforms; |
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cl_uint numDevices; |
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char pbuff[256]; |
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cl_int status; |
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status = clGetPlatformIDs(0, NULL, &numPlatforms); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Getting Platforms. (clGetPlatformsIDs)"); |
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return NULL; |
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} |
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platforms = (cl_platform_id *)alloca(numPlatforms*sizeof(cl_platform_id)); |
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status = clGetPlatformIDs(numPlatforms, platforms, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Getting Platform Ids. (clGetPlatformsIDs)"); |
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return NULL; |
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} |
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if (opt_platform_id >= numPlatforms) { |
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applog(LOG_ERR, "Specified platform that does not exist"); |
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return NULL; |
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} |
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status = clGetPlatformInfo(platforms[opt_platform_id], CL_PLATFORM_VENDOR, sizeof(pbuff), pbuff, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Getting Platform Info. (clGetPlatformInfo)"); |
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return NULL; |
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} |
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platform = platforms[opt_platform_id]; |
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if (platform == NULL) { |
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perror("NULL platform found!\n"); |
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return NULL; |
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} |
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applog(LOG_INFO, "CL Platform vendor: %s", pbuff); |
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status = clGetPlatformInfo(platform, CL_PLATFORM_NAME, sizeof(pbuff), pbuff, NULL); |
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if (status == CL_SUCCESS) |
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applog(LOG_INFO, "CL Platform name: %s", pbuff); |
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status = clGetPlatformInfo(platform, CL_PLATFORM_VERSION, sizeof(pbuff), pbuff, NULL); |
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if (status == CL_SUCCESS) |
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applog(LOG_INFO, "CL Platform version: %s", pbuff); |
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status = clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, 0, NULL, &numDevices); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Getting Device IDs (num)"); |
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return NULL; |
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} |
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if (numDevices > 0 ) { |
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devices = (cl_device_id *)malloc(numDevices*sizeof(cl_device_id)); |
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/* Now, get the device list data */ |
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status = clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, numDevices, devices, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Getting Device IDs (list)"); |
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return NULL; |
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} |
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applog(LOG_INFO, "List of devices:"); |
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unsigned int i; |
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for (i = 0; i < numDevices; i++) { |
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status = clGetDeviceInfo(devices[i], CL_DEVICE_NAME, sizeof(pbuff), pbuff, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Getting Device Info"); |
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return NULL; |
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} |
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applog(LOG_INFO, "\t%i\t%s", i, pbuff); |
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} |
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if (gpu < numDevices) { |
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status = clGetDeviceInfo(devices[gpu], CL_DEVICE_NAME, sizeof(pbuff), pbuff, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Getting Device Info"); |
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return NULL; |
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} |
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applog(LOG_INFO, "Selected %i: %s", gpu, pbuff); |
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strncpy(name, pbuff, nameSize); |
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} else { |
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applog(LOG_ERR, "Invalid GPU %i", gpu); |
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return NULL; |
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} |
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} else return NULL; |
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cl_context_properties cps[3] = { CL_CONTEXT_PLATFORM, (cl_context_properties)platform, 0 }; |
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clState->context = clCreateContextFromType(cps, CL_DEVICE_TYPE_GPU, NULL, NULL, &status); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Creating Context. (clCreateContextFromType)"); |
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return NULL; |
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} |
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/* Check for BFI INT support. Hopefully people don't mix devices with |
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* and without it! */ |
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char * extensions = malloc(1024); |
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const char * camo = "cl_amd_media_ops"; |
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char *find; |
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status = clGetDeviceInfo(devices[gpu], CL_DEVICE_EXTENSIONS, 1024, (void *)extensions, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Failed to clGetDeviceInfo when trying to get CL_DEVICE_EXTENSIONS"); |
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return NULL; |
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} |
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find = strstr(extensions, camo); |
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if (find) |
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clState->hasBitAlign = true; |
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/* Check for OpenCL >= 1.0 support, needed for global offset parameter usage. */ |
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char * devoclver = malloc(1024); |
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const char * ocl10 = "OpenCL 1.0"; |
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status = clGetDeviceInfo(devices[gpu], CL_DEVICE_VERSION, 1024, (void *)devoclver, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Failed to clGetDeviceInfo when trying to get CL_DEVICE_VERSION"); |
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return NULL; |
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} |
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find = strstr(devoclver, ocl10); |
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if (!find) |
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clState->hasOpenCL11plus = true; |
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status = clGetDeviceInfo(devices[gpu], CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT, sizeof(cl_uint), (void *)&clState->preferred_vwidth, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Failed to clGetDeviceInfo when trying to get CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT"); |
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return NULL; |
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} |
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if (opt_debug) |
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applog(LOG_DEBUG, "Preferred vector width reported %d", clState->preferred_vwidth); |
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status = clGetDeviceInfo(devices[gpu], CL_DEVICE_MAX_WORK_GROUP_SIZE, sizeof(size_t), (void *)&clState->max_work_size, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Failed to clGetDeviceInfo when trying to get CL_DEVICE_MAX_WORK_GROUP_SIZE"); |
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return NULL; |
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} |
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if (opt_debug) |
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applog(LOG_DEBUG, "Max work group size reported %d", clState->max_work_size); |
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/* For some reason 2 vectors is still better even if the card says |
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* otherwise, and many cards lie about their max so use 256 as max |
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* unless explicitly set on the command line. 79x0 cards perform |
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* better without vectors */ |
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if (clState->preferred_vwidth > 1) { |
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if (strstr(name, "Tahiti")) |
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clState->preferred_vwidth = 1; |
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else |
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clState->preferred_vwidth = 2; |
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} |
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if (opt_vectors) |
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clState->preferred_vwidth = opt_vectors; |
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if (opt_worksize && opt_worksize <= clState->max_work_size) |
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clState->work_size = opt_worksize; |
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else |
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clState->work_size = (clState->max_work_size <= 256 ? clState->max_work_size : 256) / |
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clState->preferred_vwidth; |
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/* Create binary filename based on parameters passed to opencl |
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* compiler to ensure we only load a binary that matches what would |
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* have otherwise created. The filename is: |
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* name + kernelname +/i bitalign + v + vectors + w + work_size + sizeof(long) + .bin |
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*/ |
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char binaryfilename[255]; |
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char numbuf[10]; |
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char filename[16]; |
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if (chosen_kernel == KL_NONE) { |
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if (!strstr(name, "Tahiti")) |
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chosen_kernel = KL_DIAKGCN; |
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else if (!clState->hasBitAlign) |
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chosen_kernel = KL_POCLBM; |
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else |
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chosen_kernel = KL_PHATK; |
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} |
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switch (chosen_kernel) { |
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case KL_DIAKGCN: |
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strcpy(filename, DIAKGCN_KERNNAME".cl"); |
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strcpy(binaryfilename, DIAKGCN_KERNNAME); |
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break; |
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case KL_POCLBM: |
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strcpy(filename, POCLBM_KERNNAME".cl"); |
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strcpy(binaryfilename, POCLBM_KERNNAME); |
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break; |
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case KL_NONE: /* Shouldn't happen */ |
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case KL_PHATK: |
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strcpy(filename, PHATK_KERNNAME".cl"); |
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strcpy(binaryfilename, PHATK_KERNNAME); |
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break; |
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} |
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FILE *binaryfile; |
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size_t *binary_sizes; |
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char **binaries; |
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int pl; |
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char *source = file_contents(filename, &pl); |
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size_t sourceSize[] = {(size_t)pl}; |
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if (!source) |
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return NULL; |
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binary_sizes = (size_t *)malloc(sizeof(size_t)*numDevices); |
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if (unlikely(!binary_sizes)) { |
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applog(LOG_ERR, "Unable to malloc binary_sizes"); |
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return NULL; |
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} |
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binaries = (char **)malloc(sizeof(char *)*numDevices); |
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if (unlikely(!binaries)) { |
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applog(LOG_ERR, "Unable to malloc binaries"); |
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return NULL; |
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} |
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strcat(binaryfilename, name); |
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if (clState->hasBitAlign) |
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strcat(binaryfilename, "bitalign"); |
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strcat(binaryfilename, "v"); |
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sprintf(numbuf, "%d", clState->preferred_vwidth); |
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strcat(binaryfilename, numbuf); |
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strcat(binaryfilename, "w"); |
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sprintf(numbuf, "%d", (int)clState->work_size); |
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strcat(binaryfilename, numbuf); |
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strcat(binaryfilename, "long"); |
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sprintf(numbuf, "%d", (int)sizeof(long)); |
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strcat(binaryfilename, numbuf); |
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strcat(binaryfilename, ".bin"); |
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binaryfile = fopen(binaryfilename, "rb"); |
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if (!binaryfile) { |
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if (opt_debug) |
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applog(LOG_DEBUG, "No binary found, generating from source"); |
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} else { |
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struct stat binary_stat; |
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if (unlikely(stat(binaryfilename, &binary_stat))) { |
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if (opt_debug) |
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applog(LOG_DEBUG, "Unable to stat binary, generating from source"); |
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fclose(binaryfile); |
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goto build; |
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} |
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if (!binary_stat.st_size) |
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goto build; |
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binary_sizes[gpu] = binary_stat.st_size; |
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binaries[gpu] = (char *)malloc(binary_sizes[gpu]); |
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if (unlikely(!binaries[gpu])) { |
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applog(LOG_ERR, "Unable to malloc binaries"); |
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fclose(binaryfile); |
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return NULL; |
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} |
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if (fread(binaries[gpu], 1, binary_sizes[gpu], binaryfile) != binary_sizes[gpu]) { |
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applog(LOG_ERR, "Unable to fread binaries[gpu]"); |
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fclose(binaryfile); |
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free(binaries[gpu]); |
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goto build; |
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} |
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clState->program = clCreateProgramWithBinary(clState->context, 1, &devices[gpu], &binary_sizes[gpu], (const unsigned char **)&binaries[gpu], &status, NULL); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Loading Binary into cl_program (clCreateProgramWithBinary)"); |
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fclose(binaryfile); |
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free(binaries[gpu]); |
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goto build; |
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} |
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fclose(binaryfile); |
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if (opt_debug) |
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applog(LOG_DEBUG, "Loaded binary image %s", binaryfilename); |
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/* We don't need to patch this already loaded image, but need to |
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* set the flag for status later */ |
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if (clState->hasBitAlign) |
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patchbfi = true; |
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free(binaries[gpu]); |
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goto built; |
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} |
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///////////////////////////////////////////////////////////////// |
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// Load CL file, build CL program object, create CL kernel object |
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///////////////////////////////////////////////////////////////// |
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build: |
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clState->program = clCreateProgramWithSource(clState->context, 1, (const char **)&source, sourceSize, &status); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Loading Binary into cl_program (clCreateProgramWithSource)"); |
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return NULL; |
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} |
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clRetainProgram(clState->program); |
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if (status != CL_SUCCESS) { |
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applog(LOG_ERR, "Error: Retaining Program (clRetainProgram)"); |
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return NULL; |
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} |
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|
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/* create a cl program executable for all the devices specified */ |
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char *CompilerOptions = calloc(1, 256); |
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|
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sprintf(CompilerOptions, "-D WORKSIZE=%d -D VECTORS%d", |
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(int)clState->work_size, clState->preferred_vwidth); |
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if (opt_debug) |
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applog(LOG_DEBUG, "Setting worksize to %d", clState->work_size); |
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if (clState->preferred_vwidth > 1 && opt_debug) |
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applog(LOG_DEBUG, "Patched source to suit %d vectors", clState->preferred_vwidth); |
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if (clState->hasBitAlign) { |
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strcat(CompilerOptions, " -D BITALIGN"); |
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if (opt_debug) |
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applog(LOG_DEBUG, "cl_amd_media_ops found, setting BITALIGN"); |
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if (strstr(name, "Cedar") || |
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strstr(name, "Redwood") || |
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strstr(name, "Juniper") || |
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strstr(name, "Cypress" ) || |
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strstr(name, "Hemlock" ) || |
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strstr(name, "Caicos" ) || |
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strstr(name, "Turks" ) || |
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strstr(name, "Barts" ) || |
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strstr(name, "Cayman" ) || |
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strstr(name, "Antilles" ) || |
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strstr(name, "Wrestler" ) || |
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strstr(name, "Zacate" ) || |
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strstr(name, "WinterPark" ) || |
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strstr(name, "BeaverCreek" )) |
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patchbfi = true; |
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} else if (opt_debug) |
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applog(LOG_DEBUG, "cl_amd_media_ops not found, will not set BITALIGN"); |
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|
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if (patchbfi) { |
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strcat(CompilerOptions, " -D BFI_INT"); |
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if (opt_debug) |
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applog(LOG_DEBUG, "BFI_INT patch requiring device found, patched source with BFI_INT"); |
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} else if (opt_debug) |
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applog(LOG_DEBUG, "BFI_INT patch requiring device not found, will not BFI_INT patch"); |
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|
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if (opt_debug) |
|
applog(LOG_DEBUG, "CompilerOptions: %s", CompilerOptions); |
|
status = clBuildProgram(clState->program, 1, &devices[gpu], CompilerOptions , NULL, NULL); |
|
free(CompilerOptions); |
|
|
|
if (status != CL_SUCCESS) { |
|
applog(LOG_ERR, "Error: Building Program (clBuildProgram)"); |
|
size_t logSize; |
|
status = clGetProgramBuildInfo(clState->program, devices[gpu], CL_PROGRAM_BUILD_LOG, 0, NULL, &logSize); |
|
|
|
char *log = malloc(logSize); |
|
status = clGetProgramBuildInfo(clState->program, devices[gpu], CL_PROGRAM_BUILD_LOG, logSize, log, NULL); |
|
applog(LOG_INFO, "%s", log); |
|
return NULL; |
|
} |
|
|
|
prog_built = true; |
|
|
|
status = clGetProgramInfo( clState->program, CL_PROGRAM_BINARY_SIZES, sizeof(size_t)*numDevices, binary_sizes, NULL ); |
|
if (unlikely(status != CL_SUCCESS)) { |
|
applog(LOG_ERR, "Error: Getting program info CL_PROGRAM_BINARY_SIZES. (clGetPlatformInfo)"); |
|
return NULL; |
|
} |
|
|
|
/* copy over all of the generated binaries. */ |
|
if (opt_debug) |
|
applog(LOG_DEBUG, "binary size %d : %d", gpu, binary_sizes[gpu]); |
|
if (!binary_sizes[gpu]) { |
|
applog(LOG_ERR, "OpenCL compiler generated a zero sized binary, may need to reboot!"); |
|
return NULL; |
|
} |
|
binaries[gpu] = (char *)malloc( sizeof(char)*binary_sizes[gpu]); |
|
status = clGetProgramInfo( clState->program, CL_PROGRAM_BINARIES, sizeof(char *)*numDevices, binaries, NULL ); |
|
if (unlikely(status != CL_SUCCESS)) { |
|
applog(LOG_ERR, "Error: Getting program info. (clGetPlatformInfo)"); |
|
return NULL; |
|
} |
|
|
|
/* Patch the kernel if the hardware supports BFI_INT but it needs to |
|
* be hacked in */ |
|
if (patchbfi) { |
|
unsigned remaining = binary_sizes[gpu]; |
|
char *w = binaries[gpu]; |
|
unsigned int start, length; |
|
|
|
/* Find 2nd incidence of .text, and copy the program's |
|
* position and length at a fixed offset from that. Then go |
|
* back and find the 2nd incidence of \x7ELF (rewind by one |
|
* from ELF) and then patch the opcocdes */ |
|
if (!advance(&w, &remaining, ".text")) |
|
{patchbfi = 0; goto build;} |
|
w++; remaining--; |
|
if (!advance(&w, &remaining, ".text")) { |
|
/* 32 bit builds only one ELF */ |
|
w--; remaining++; |
|
} |
|
memcpy(&start, w + 285, 4); |
|
memcpy(&length, w + 289, 4); |
|
w = binaries[gpu]; remaining = binary_sizes[gpu]; |
|
if (!advance(&w, &remaining, "ELF")) |
|
{patchbfi = 0; goto build;} |
|
w++; remaining--; |
|
if (!advance(&w, &remaining, "ELF")) { |
|
/* 32 bit builds only one ELF */ |
|
w--; remaining++; |
|
} |
|
w--; remaining++; |
|
w += start; remaining -= start; |
|
if (opt_debug) |
|
applog(LOG_DEBUG, "At %p (%u rem. bytes), to begin patching", |
|
w, remaining); |
|
patch_opcodes(w, length); |
|
|
|
status = clReleaseProgram(clState->program); |
|
if (status != CL_SUCCESS) { |
|
applog(LOG_ERR, "Error: Releasing program. (clReleaseProgram)"); |
|
return NULL; |
|
} |
|
|
|
clState->program = clCreateProgramWithBinary(clState->context, 1, &devices[gpu], &binary_sizes[gpu], (const unsigned char **)&binaries[gpu], &status, NULL); |
|
if (status != CL_SUCCESS) { |
|
applog(LOG_ERR, "Error: Loading Binary into cl_program (clCreateProgramWithBinary)"); |
|
return NULL; |
|
} |
|
|
|
clRetainProgram(clState->program); |
|
if (status != CL_SUCCESS) { |
|
applog(LOG_ERR, "Error: Retaining Program (clRetainProgram)"); |
|
return NULL; |
|
} |
|
|
|
/* Program needs to be rebuilt */ |
|
prog_built = false; |
|
} |
|
|
|
free(source); |
|
|
|
/* Save the binary to be loaded next time */ |
|
binaryfile = fopen(binaryfilename, "wb"); |
|
if (!binaryfile) { |
|
/* Not a fatal problem, just means we build it again next time */ |
|
if (opt_debug) |
|
applog(LOG_DEBUG, "Unable to create file %s", binaryfilename); |
|
} else { |
|
if (unlikely(fwrite(binaries[gpu], 1, binary_sizes[gpu], binaryfile) != binary_sizes[gpu])) { |
|
applog(LOG_ERR, "Unable to fwrite to binaryfile"); |
|
return NULL; |
|
} |
|
fclose(binaryfile); |
|
} |
|
if (binaries[gpu]) |
|
free(binaries[gpu]); |
|
built: |
|
free(binaries); |
|
free(binary_sizes); |
|
|
|
applog(LOG_INFO, "Initialising kernel %s with%s BFI_INT, %d vectors and worksize %d", |
|
filename, patchbfi ? "" : "out", clState->preferred_vwidth, clState->work_size); |
|
|
|
if (!prog_built) { |
|
/* create a cl program executable for all the devices specified */ |
|
status = clBuildProgram(clState->program, 1, &devices[gpu], NULL, NULL, NULL); |
|
if (status != CL_SUCCESS) { |
|
applog(LOG_ERR, "Error: Building Program (clBuildProgram)"); |
|
size_t logSize; |
|
status = clGetProgramBuildInfo(clState->program, devices[gpu], CL_PROGRAM_BUILD_LOG, 0, NULL, &logSize); |
|
|
|
char *log = malloc(logSize); |
|
status = clGetProgramBuildInfo(clState->program, devices[gpu], CL_PROGRAM_BUILD_LOG, logSize, log, NULL); |
|
applog(LOG_INFO, "%s", log); |
|
return NULL; |
|
} |
|
|
|
clRetainProgram(clState->program); |
|
if (status != CL_SUCCESS) { |
|
applog(LOG_ERR, "Error: Retaining Program (clRetainProgram)"); |
|
return NULL; |
|
} |
|
} |
|
|
|
/* get a kernel object handle for a kernel with the given name */ |
|
clState->kernel = clCreateKernel(clState->program, "search", &status); |
|
if (status != CL_SUCCESS) { |
|
applog(LOG_ERR, "Error: Creating Kernel from program. (clCreateKernel)"); |
|
return NULL; |
|
} |
|
|
|
///////////////////////////////////////////////////////////////// |
|
// Create an OpenCL command queue |
|
///////////////////////////////////////////////////////////////// |
|
clState->commandQueue = clCreateCommandQueue(clState->context, devices[gpu], |
|
CL_QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE, &status); |
|
if (status != CL_SUCCESS) /* Try again without OOE enable */ |
|
clState->commandQueue = clCreateCommandQueue(clState->context, devices[gpu], 0 , &status); |
|
if (status != CL_SUCCESS) { |
|
applog(LOG_ERR, "Creating Command Queue. (clCreateCommandQueue)"); |
|
return NULL; |
|
} |
|
|
|
clState->outputBuffer = clCreateBuffer(clState->context, CL_MEM_READ_WRITE, BUFFERSIZE, NULL, &status); |
|
if (status != CL_SUCCESS) { |
|
applog(LOG_ERR, "Error: clCreateBuffer (outputBuffer)"); |
|
return NULL; |
|
} |
|
|
|
return clState; |
|
} |
|
#endif /* HAVE_OPENCL */ |
|
|
|
|