/* serializes a single file. */
static unsigned char*
serialize_file(char* path, size_t basedir_offset, unsigned char* buffer)
{
char* content;
uint64_t fsize;
char* p = path + basedir_offset;
BUFFER_STORE_STR(p);
pocl_read_file(path, &content, &fsize);
BUFFER_STORE_STR2(content, fsize);
free(content);
return buffer;
}
char* pocl_cache_read_buildlog(cl_program program,
unsigned device_i) {
char buildlog_path[POCL_FILENAME_LENGTH];
if (program->build_hash[device_i][0] == 0)
return NULL;
program_device_dir(buildlog_path, program,
device_i, POCL_BUILDLOG_FILENAME);
if (!pocl_exists(buildlog_path))
return strdup("");
char* res=NULL;
uint64_t filesize;
if (pocl_read_file(buildlog_path, &res, &filesize))
return NULL;
return res;
}
cl_int
compile_and_link_program(int compile_program,
int link_program,
cl_program program,
cl_uint num_devices,
const cl_device_id *device_list,
const char *options,
cl_uint num_input_headers,
const cl_program *input_headers,
const char **header_include_names,
cl_uint num_input_programs,
const cl_program *input_programs,
void (CL_CALLBACK *pfn_notify) (cl_program program,
void *user_data),
void *user_data)
{
char program_bc_path[POCL_FILENAME_LENGTH];
char link_options[512];
int errcode, error;
int create_library = 0;
int requires_cr_sqrt_div = 0;
int spir_build = 0;
unsigned flush_denorms = 0;
uint64_t fsize;
cl_device_id *unique_devlist = NULL;
char *binary = NULL;
unsigned device_i = 0, actually_built = 0;
size_t i, j;
char *temp_options = NULL;
const char *extra_build_options =
pocl_get_string_option ("POCL_EXTRA_BUILD_FLAGS", NULL);
int build_error_code
= (link_program ? CL_BUILD_PROGRAM_FAILURE : CL_COMPILE_PROGRAM_FAILURE);
POCL_GOTO_LABEL_COND (PFN_NOTIFY, (program == NULL), CL_INVALID_PROGRAM);
POCL_GOTO_LABEL_COND (PFN_NOTIFY, (num_devices > 0 && device_list == NULL),
CL_INVALID_VALUE);
POCL_GOTO_LABEL_COND (PFN_NOTIFY, (num_devices == 0 && device_list != NULL),
CL_INVALID_VALUE);
POCL_GOTO_LABEL_COND (PFN_NOTIFY, (pfn_notify == NULL && user_data != NULL),
CL_INVALID_VALUE);
POCL_GOTO_LABEL_ON (PFN_NOTIFY, program->kernels, CL_INVALID_OPERATION,
"Program already has kernels\n");
POCL_GOTO_LABEL_ON (PFN_NOTIFY,
(program->source == NULL && program->binaries == NULL),
CL_INVALID_PROGRAM,
"Program doesn't have sources or binaries! You need "
"to call clCreateProgramWith{Binary|Source} first\n");
POCL_GOTO_LABEL_ON (PFN_NOTIFY,
((program->source == NULL) && (link_program == 0)),
CL_INVALID_OPERATION,
"Cannot clCompileProgram when program has no source\n");
POCL_LOCK_OBJ (program);
program->main_build_log[0] = 0;
/* TODO this should be somehow utilized at linking */
POCL_MEM_FREE (program->compiler_options);
if (extra_build_options)
{
size_t len = (options != NULL) ? strlen (options) : 0;
len += strlen (extra_build_options) + 2;
temp_options = (char *)malloc (len);
temp_options[0] = 0;
if (options != NULL)
{
strcpy (temp_options, options);
strcat (temp_options, " ");
}
strcat (temp_options, extra_build_options);
}
else
temp_options = (char*) options;
if (temp_options)
{
i = strlen (temp_options);
size_t size = i + 512; /* add some space for pocl-added options */
program->compiler_options = (char *)malloc (size);
errcode = process_options (temp_options, program->compiler_options,
link_options, program, compile_program,
link_program, &create_library, &flush_denorms,
&requires_cr_sqrt_div, &spir_build, size);
if (errcode != CL_SUCCESS)
goto ERROR_CLEAN_OPTIONS;
}
POCL_MSG_PRINT_LLVM ("building program with options %s\n",
program->compiler_options);
program->flush_denorms = flush_denorms;
#if !(defined(__x86_64__) && defined(__GNUC__))
if (flush_denorms)
{
POCL_MSG_WARN ("flush to zero is currently only implemented for "
"x86-64 & gcc/clang, ignoring flag\n");
}
#endif
/* DEVICE LIST */
if (num_devices == 0)
{
num_devices = program->num_devices;
device_list = program->devices;
}
else
{
// convert subdevices to devices and remove duplicates
cl_uint real_num_devices = 0;
unique_devlist = pocl_unique_device_list (device_list, num_devices,
&real_num_devices);
num_devices = real_num_devices;
device_list = unique_devlist;
}
clean_program_on_rebuild (program);
/* Build the fully linked non-parallel bitcode for all
devices. */
for (device_i = 0; device_i < program->num_devices; ++device_i)
{
cl_device_id device = program->devices[device_i];
/* find the device in the supplied devices-to-build-for list */
int found = 0;
for (i = 0; i < num_devices; ++i)
if (device_list[i] == device) found = 1;
if (!found) continue;
if (requires_cr_sqrt_div
&& !(device->single_fp_config & CL_FP_CORRECTLY_ROUNDED_DIVIDE_SQRT))
{
APPEND_TO_MAIN_BUILD_LOG (REQUIRES_CR_SQRT_DIV_ERR);
POCL_GOTO_ERROR_ON (1, build_error_code,
REQUIRES_CR_SQRT_DIV_ERR " %s\n",
device->short_name);
}
actually_built++;
/* clCreateProgramWithSource */
if (program->source)
{
#ifdef OCS_AVAILABLE
if (device->compiler_available == CL_TRUE)
{
POCL_MSG_PRINT_INFO ("building from sources for device %d\n",
device_i);
error = pocl_llvm_build_program (
program, device_i, program->compiler_options,
program_bc_path, num_input_headers, input_headers,
header_include_names, (create_library ? 0 : link_program));
POCL_GOTO_ERROR_ON ((error != 0), build_error_code,
"pocl_llvm_build_program() failed\n");
}
else
#endif
{
APPEND_TO_MAIN_BUILD_LOG (
"Cannot build a program from sources with pocl "
"that does not have online compiler support\n");
POCL_GOTO_ERROR_ON (1, CL_COMPILER_NOT_AVAILABLE, "%s",
program->main_build_log);
}
}
/* clCreateProgramWithBinaries */
else if (program->binaries[device_i]
&& (program->pocl_binaries[device_i] == NULL))
{
#ifdef OCS_AVAILABLE
/* bitcode is now either plain LLVM IR or SPIR IR */
int spir_binary = bitcode_is_spir ((char*)program->binaries[device_i],
program->binary_sizes[device_i]);
if (spir_binary)
POCL_MSG_PRINT_LLVM ("LLVM-SPIR binary detected\n");
else
POCL_MSG_PRINT_LLVM ("building from a BC binary for device %d\n",
device_i);
if (spir_binary)
{
#ifdef ENABLE_SPIR
if (!strstr (device->extensions, "cl_khr_spir"))
{
APPEND_TO_MAIN_BUILD_LOG (REQUIRES_SPIR_SUPPORT);
POCL_GOTO_ERROR_ON (1, build_error_code,
REQUIRES_SPIR_SUPPORT " %s\n",
device->short_name);
}
if (!spir_build)
POCL_MSG_WARN (
"SPIR binary provided, but no spir in build options\n");
/* SPIR binaries need to be explicitly linked to the kernel
* library. for non-SPIR binaries this happens as part of build
* process when program.bc is generated. */
error
= pocl_llvm_link_program (program, device_i, program_bc_path,
0, NULL, NULL, NULL, 0, 1);
POCL_GOTO_ERROR_ON (error, CL_LINK_PROGRAM_FAILURE,
"Failed to link SPIR program.bc\n");
#else
APPEND_TO_MAIN_BUILD_LOG (REQUIRES_SPIR_SUPPORT);
POCL_GOTO_ERROR_ON (1, build_error_code,
REQUIRES_SPIR_SUPPORT " %s\n",
device->short_name);
#endif
}
#else
APPEND_TO_MAIN_BUILD_LOG (
"Cannot build program from LLVM IR binaries with "
"pocl that does not have online compiler support\n");
POCL_GOTO_ERROR_ON (1, CL_COMPILER_NOT_AVAILABLE, "%s",
program->main_build_log);
#endif
}
else if (program->pocl_binaries[device_i])
{
POCL_MSG_PRINT_INFO("having a poclbinary for device %d\n", device_i);
#ifdef OCS_AVAILABLE
if (program->binaries[device_i] == NULL)
{
POCL_MSG_WARN (
"pocl-binary for this device doesn't contain "
"program.bc - you won't be able to rebuild/link it\n");
/* do not try to read program.bc or LLVM IRs
* TODO maybe read LLVM IRs ?*/
continue;
}
#else
continue;
#endif
}
else if (link_program && (num_input_programs > 0))
{
#ifdef OCS_AVAILABLE
/* just link binaries. */
unsigned char *cur_device_binaries[num_input_programs];
size_t cur_device_binary_sizes[num_input_programs];
void *cur_llvm_irs[num_input_programs];
for (j = 0; j < num_input_programs; j++)
{
assert (device == input_programs[j]->devices[device_i]);
cur_device_binaries[j] = input_programs[j]->binaries[device_i];
assert (cur_device_binaries[j]);
cur_device_binary_sizes[j]
= input_programs[j]->binary_sizes[device_i];
if (input_programs[j]->llvm_irs[device_i] == NULL)
pocl_update_program_llvm_irs (input_programs[j], device_i);
cur_llvm_irs[j] = input_programs[j]->llvm_irs[device_i];
assert (cur_llvm_irs[j]);
}
error = pocl_llvm_link_program (
program, device_i, program_bc_path, num_input_programs,
cur_device_binaries, cur_device_binary_sizes, cur_llvm_irs,
create_library, 0);
POCL_GOTO_ERROR_ON ((error != CL_SUCCESS), CL_LINK_PROGRAM_FAILURE,
"pocl_llvm_link_program() failed\n");
#else
POCL_GOTO_ERROR_ON ((1), CL_LINK_PROGRAM_FAILURE,
"clCompileProgram/clLinkProgram/clBuildProgram"
" require a pocl built with LLVM\n");
#endif
}
else
{
POCL_GOTO_ERROR_ON (1, CL_INVALID_BINARY,
"No sources nor binaries for device %s - can't "
"build the program\n", device->short_name);
}
#ifdef OCS_AVAILABLE
/* Read binaries from program.bc to memory */
if (program->binaries[device_i] == NULL)
{
errcode = pocl_read_file(program_bc_path, &binary, &fsize);
POCL_GOTO_ERROR_ON(errcode, CL_BUILD_ERROR,
"Failed to read binaries from program.bc to "
"memory: %s\n", program_bc_path);
program->binary_sizes[device_i] = (size_t)fsize;
program->binaries[device_i] = (unsigned char *)binary;
}
if (program->llvm_irs[device_i] == NULL)
{
pocl_update_program_llvm_irs(program, device_i);
}
/* Maintain a 'last_accessed' file in every program's
* cache directory. Will be useful for cache pruning script
* that flushes old directories based on LRU */
pocl_cache_update_program_last_access(program, device_i);
#endif
}
POCL_GOTO_ERROR_ON ((actually_built < num_devices), build_error_code,
"Some of the devices on the argument-supplied list are"
"not available for the program, or do not exist\n");
program->build_status = CL_BUILD_SUCCESS;
program->binary_type = CL_PROGRAM_BINARY_TYPE_EXECUTABLE;
/* if program will be compiled using clCompileProgram its binary_type
* will be set to CL_PROGRAM_BINARY_TYPE_COMPILED_OBJECT.
*
* if program was created by clLinkProgram which is called
* with the –createlibrary link option its binary_type will be set to
* CL_PROGRAM_BINARY_TYPE_LIBRARY.
*/
if (create_library)
program->binary_type = CL_PROGRAM_BINARY_TYPE_LIBRARY;
if (compile_program && !link_program)
program->binary_type = CL_PROGRAM_BINARY_TYPE_COMPILED_OBJECT;
assert(program->num_kernels == 0);
/* get non-device-specific kernel metadata. We can stop after finding
* the first method that works.*/
for (device_i = 0; device_i < program->num_devices; device_i++)
{
#ifdef OCS_AVAILABLE
if (program->binaries[device_i])
{
program->num_kernels
= pocl_llvm_get_kernel_count (program, device_i);
if (program->num_kernels)
{
program->kernel_meta = calloc (program->num_kernels,
sizeof (pocl_kernel_metadata_t));
pocl_llvm_get_kernels_metadata (program, device_i);
}
break;
}
#endif
if (program->pocl_binaries[device_i])
{
program->num_kernels
= pocl_binary_get_kernel_count (program, device_i);
if (program->num_kernels)
{
program->kernel_meta = calloc (program->num_kernels,
sizeof (pocl_kernel_metadata_t));
pocl_binary_get_kernels_metadata (program, device_i);
}
break;
}
}
POCL_GOTO_ERROR_ON ((device_i >= program->num_devices), CL_INVALID_BINARY,
"Could find kernel metadata in the built program\n");
/* calculate device-specific kernel hashes. */
for (j = 0; j < program->num_kernels; ++j)
{
program->kernel_meta[j].build_hash
= calloc (program->num_devices, sizeof (pocl_kernel_hash_t));
for (device_i = 0; device_i < program->num_devices; device_i++)
{
pocl_calculate_kernel_hash (program, j, device_i);
}
}
errcode = CL_SUCCESS;
goto FINISH;
ERROR:
free_meta (program);
program->kernels = NULL;
for (device_i = 0; device_i < program->num_devices; device_i++)
{
if (program->source)
{
POCL_MEM_FREE (program->binaries[device_i]);
program->binary_sizes[device_i] = 0;
}
}
ERROR_CLEAN_OPTIONS:
if (temp_options != options)
free (temp_options);
program->build_status = CL_BUILD_ERROR;
FINISH:
POCL_UNLOCK_OBJ (program);
POCL_MEM_FREE (unique_devlist);
PFN_NOTIFY:
if (pfn_notify)
pfn_notify (program, user_data);
return errcode;
}
/* creates either a program with binaries, or an empty program. The latter
* is useful for clLinkProgram() which needs an empty program to put the
* compiled results in.
*/
cl_program
create_program_skeleton (cl_context context, cl_uint num_devices,
const cl_device_id *device_list,
const size_t *lengths, const unsigned char **binaries,
cl_int *binary_status, cl_int *errcode_ret,
int allow_empty_binaries)
{
cl_program program;
unsigned i,j;
int errcode, is_spirv_opencl;
cl_device_id *unique_devlist = NULL;
POCL_GOTO_ERROR_COND((context == NULL), CL_INVALID_CONTEXT);
POCL_GOTO_ERROR_COND((device_list == NULL), CL_INVALID_VALUE);
POCL_GOTO_ERROR_COND((num_devices == 0), CL_INVALID_VALUE);
if (!allow_empty_binaries)
{
POCL_GOTO_ERROR_COND ((lengths == NULL), CL_INVALID_VALUE);
for (i = 0; i < num_devices; ++i)
{
POCL_GOTO_ERROR_ON ((lengths[i] == 0 || binaries[i] == NULL),
CL_INVALID_VALUE,
"%i-th binary is NULL or its length==0\n", i);
}
}
// check for duplicates in device_list[].
for (i = 0; i < context->num_devices; i++)
{
int count = 0;
for (j = 0; j < num_devices; j++)
{
count += context->devices[i] == device_list[j];
}
// duplicate devices
POCL_GOTO_ERROR_ON((count > 1), CL_INVALID_DEVICE,
"device %s specified multiple times\n", context->devices[i]->long_name);
}
// convert subdevices to devices and remove duplicates
cl_uint real_num_devices = 0;
unique_devlist = pocl_unique_device_list(device_list, num_devices, &real_num_devices);
num_devices = real_num_devices;
device_list = unique_devlist;
// check for invalid devices in device_list[].
for (i = 0; i < num_devices; i++)
{
int found = 0;
for (j = 0; j < context->num_devices; j++)
{
found |= context->devices[j] == device_list[i];
}
POCL_GOTO_ERROR_ON((!found), CL_INVALID_DEVICE,
"device not found in the device list of the context\n");
}
if ((program = (cl_program) calloc (1, sizeof (struct _cl_program))) == NULL)
{
errcode = CL_OUT_OF_HOST_MEMORY;
goto ERROR;
}
POCL_INIT_OBJECT(program);
if ((program->binary_sizes =
(size_t*) calloc (num_devices, sizeof(size_t))) == NULL ||
(program->binaries = (unsigned char**)
calloc (num_devices, sizeof(unsigned char*))) == NULL ||
(program->pocl_binaries = (unsigned char**)
calloc (num_devices, sizeof(unsigned char*))) == NULL ||
(program->pocl_binary_sizes =
(size_t*) calloc (num_devices, sizeof(size_t))) == NULL ||
(program->build_log = (char**)
calloc (num_devices, sizeof(char*))) == NULL ||
((program->llvm_irs =
(void**) calloc (num_devices, sizeof(void*))) == NULL) ||
((program->build_hash = (SHA1_digest_t*)
calloc (num_devices, sizeof(SHA1_digest_t))) == NULL))
{
errcode = CL_OUT_OF_HOST_MEMORY;
goto ERROR_CLEAN_PROGRAM_AND_BINARIES;
}
program->context = context;
program->num_devices = num_devices;
program->devices = unique_devlist;
program->build_status = CL_BUILD_NONE;
program->binary_type = CL_PROGRAM_BINARY_TYPE_NONE;
char program_bc_path[POCL_FILENAME_LENGTH];
if (allow_empty_binaries && (lengths == NULL) && (binaries == NULL))
goto SUCCESS;
for (i = 0; i < num_devices; ++i)
{
/* LLVM IR */
if (!strncmp((const char *)binaries[i], "BC", 2))
{
program->binary_sizes[i] = lengths[i];
program->binaries[i] = (unsigned char*) malloc(lengths[i]);
memcpy (program->binaries[i], binaries[i], lengths[i]);
if (binary_status != NULL)
binary_status[i] = CL_SUCCESS;
}
/* SPIR-V binary needs to be converted, and requires
* linking of the converted BC */
#ifdef OCS_AVAILABLE
else if (bitcode_is_spirv ((const char *)binaries[i], lengths[i], &is_spirv_opencl))
{
if (is_spirv_opencl == 0) {
// SPIR-V but not OpenCL-type.
POCL_GOTO_ERROR_ON (
1, CL_BUILD_PROGRAM_FAILURE,
"SPIR-V binary provided, but is not using Kernel mode."
"Pocl can't process this binary.\n");
}
int no_spir
= strstr (device_list[i]->extensions, "cl_khr_spir") == NULL;
POCL_GOTO_ERROR_ON (
no_spir, CL_BUILD_PROGRAM_FAILURE,
"SPIR binary provided, but device has no SPIR support");
#ifdef ENABLE_SPIRV
POCL_MSG_PRINT_LLVM (
"SPIR-V binary detected, converting to LLVM SPIR\n");
char program_bc_spirv[POCL_FILENAME_LENGTH];
char program_bc_temp[POCL_FILENAME_LENGTH];
pocl_cache_write_spirv (program_bc_spirv, (const char *)binaries[i],
(uint64_t)lengths[i]);
pocl_cache_tempname (program_bc_temp, ".bc", NULL);
char *args[] = { LLVM_SPIRV, "-r", "-o", program_bc_temp,
program_bc_spirv, NULL };
errcode = pocl_run_command (args);
assert (errcode == 0);
/* load LLVM SPIR binary. */
uint64_t fsize;
char *content;
pocl_read_file (program_bc_temp, &content, &fsize);
program->binary_sizes[i] = fsize;
program->binaries[i] = (unsigned char *)content;
pocl_remove (program_bc_temp);
#else
POCL_GOTO_ERROR_ON (
1, CL_BUILD_PROGRAM_FAILURE,
"SPIR binary provided, but this pocl has no SPIR-V support."
"SPIR-V support requires llvm-spirv converter binary.\n");
#endif
}
#endif
/* Poclcc binary */
else if (pocl_binary_check_binary(device_list[i], binaries[i]))
{
program->pocl_binary_sizes[i] = lengths[i];
program->pocl_binaries[i] = (unsigned char*) malloc (lengths[i]);
memcpy (program->pocl_binaries[i], binaries[i], lengths[i]);
pocl_binary_set_program_buildhash (program, i, binaries[i]);
int error = pocl_cache_create_program_cachedir
(program, i, NULL, 0, program_bc_path);
POCL_GOTO_ERROR_ON((error != 0), CL_BUILD_PROGRAM_FAILURE,
"Could not create program cachedir");
POCL_GOTO_ERROR_ON(pocl_binary_deserialize (program, i),
CL_INVALID_BINARY,
"Could not unpack a pocl binary\n");
/* read program.bc, can be useful later */
if (pocl_exists (program_bc_path))
{
pocl_read_file (program_bc_path,
(char **)(&program->binaries[i]),
(uint64_t *)(&program->binary_sizes[i]));
}
if (binary_status != NULL)
binary_status[i] = CL_SUCCESS;
}
/* Unknown binary */
else
{
POCL_MSG_WARN ("Could not recognize binary\n");
if (binary_status != NULL)
binary_status[i] = CL_INVALID_BINARY;
errcode = CL_INVALID_BINARY;
goto ERROR_CLEAN_PROGRAM_AND_BINARIES;
}
}
SUCCESS:
POCL_RETAIN_OBJECT(context);
if (errcode_ret != NULL)
*errcode_ret = CL_SUCCESS;
return program;
ERROR_CLEAN_PROGRAM_AND_BINARIES:
if (program->binaries)
for (i = 0; i < num_devices; ++i)
POCL_MEM_FREE(program->binaries[i]);
POCL_MEM_FREE(program->binaries);
POCL_MEM_FREE(program->binary_sizes);
if (program->pocl_binaries)
for (i = 0; i < num_devices; ++i)
POCL_MEM_FREE(program->pocl_binaries[i]);
POCL_MEM_FREE(program->pocl_binaries);
POCL_MEM_FREE(program->pocl_binary_sizes);
/*ERROR_CLEAN_PROGRAM:*/
POCL_MEM_FREE(program);
ERROR:
POCL_MEM_FREE(unique_devlist);
if(errcode_ret != NULL)
{
*errcode_ret = errcode;
}
return NULL;
}
int
pocl_topology_detect_device_info (cl_device_id device)
{
device->global_mem_cacheline_size = HOST_CPU_CACHELINE_SIZE;
device->global_mem_cache_type
= 0x2; // CL_READ_WRITE_CACHE, without including all of CL/cl.h
/* global mem cache size */
char *content;
uint64_t filesize;
if (pocl_read_file (L3_CACHE_SIZE, &content, &filesize) == 0)
{
long val = atol (content);
device->global_mem_cache_size = val * 1024;
POCL_MEM_FREE (content);
}
else
{
if (pocl_read_file (L2_CACHE_SIZE, &content, &filesize) == 0)
{
long val = atol (content);
device->global_mem_cache_size = val * 1024;
POCL_MEM_FREE (content);
}
else
{
POCL_MSG_WARN (
"Could not figure out CPU cache size, using bogus value\n");
device->global_mem_cache_size = 1 << 20;
}
}
/* global_mem_size */
if (pocl_read_file (MEMINFO, &content, &filesize) == 0)
{
char *tmp = content;
unsigned long memsize_kb;
size_t i;
while (*tmp && (*tmp != '\n'))
++tmp;
*tmp = 0;
tmp = content;
while (*tmp && (*tmp != 0x20))
++tmp;
while (*tmp && (*tmp == 0x20))
++tmp;
int items = sscanf (tmp, "%lu kB", &memsize_kb);
assert (items == 1);
device->global_mem_size = memsize_kb * 1024;
POCL_MEM_FREE (content);
}
else
{
POCL_MSG_WARN ("Cannot get memory size\n");
device->global_mem_size = 256 << 20;
}
/* max_compute_units */
pocl_read_file (CPUS, &content, &filesize);
/* files in /sys report file size larger than can be actually read,
so pocl_read_file() returns an error (even if it correctly
reads the file). */
if (content && content[0] != 0)
{
unsigned long start, end;
int items = sscanf (content, "%lu-%lu", &start, &end);
assert (items == 2);
device->max_compute_units = (unsigned)end + 1;
POCL_MEM_FREE (content);
}
else
{
POCL_MSG_WARN ("Cannot get logical CPU number\n");
device->max_compute_units = 1;
}
return 0;
}
int
pocl_topology_detect_device_info (cl_device_id device)
{
device->global_mem_cacheline_size = HOST_CPU_CACHELINE_SIZE;
device->global_mem_cache_type
= 0x2; // CL_READ_WRITE_CACHE, without including all of CL/cl.h
/* global mem cache size */
char *content;
uint64_t filesize;
if (pocl_read_file (L3_CACHE_SIZE, &content, &filesize) == 0)
{
long val = atol (content);
device->global_mem_cache_size = val * 1024;
POCL_MEM_FREE (content);
}
else
{
if (pocl_read_file (L2_CACHE_SIZE, &content, &filesize) == 0)
{
long val = atol (content);
device->global_mem_cache_size = val * 1024;
POCL_MEM_FREE (content);
}
else
{
POCL_MSG_WARN (
"Could not figure out CPU cache size, using bogus value\n");
device->global_mem_cache_size = 1 << 20;
}
}
/* global_mem_size */
if (pocl_read_file (MEMINFO, &content, &filesize) == 0)
{
printf ("content 11: %s FSIZE: %lu \n", content, filesize);
char *tmp = content;
unsigned long memsize_kb;
size_t i;
while (*tmp && (*tmp != '\n'))
++tmp;
*tmp = 0;
printf ("content: %s \n", content);
tmp = content;
while (*tmp && (*tmp != 0x20))
++tmp;
while (*tmp && (*tmp == 0x20))
++tmp;
printf ("TMP: %s \n", tmp);
int items = sscanf (tmp, "%lu kB", &memsize_kb);
printf ("MEMSIZE: %lu ITEMS: %i\n", memsize_kb, items);
assert (items == 1);
device->global_mem_size = memsize_kb * 1024;
POCL_MEM_FREE (content);
}
else
{
POCL_MSG_WARN ("Cannot get memory size\n");
device->global_mem_size = 256 << 20;
}
/* max_compute_units */
if (pocl_read_file (CPUS, &content, &filesize) == 0)
{
long start, end;
int items = sscanf (content, "%lu-%lu", &start, &end);
assert (items == 2);
device->max_compute_units = (unsigned)end + 1;
POCL_MEM_FREE (content);
}
else
{
POCL_MSG_WARN ("Cannot get logical CPU number\n");
device->max_compute_units = 1;
}
return 0;
}
