text: /* OpenCL runtime library: clEnqueueSVMMigrateMem()
  
     Copyright (c) 2022 Michal Babej / Tampere University of Technology
  
     Permission is hereby granted, free of charge, to any person obtaining a copy
     of this software and associated documentation files (the "Software"), to
     deal in the Software without restriction, including without limitation the
     rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
     sell copies of the Software, and to permit persons to whom the Software is
     furnished to do so, subject to the following conditions:
  
     The above copyright notice and this permission notice shall be included in
     all copies or substantial portions of the Software.
  
     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
     AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     IN THE SOFTWARE.
  */
  
  #include "pocl_cl.h"
  #include "pocl_util.h"
  
  CL_API_ENTRY cl_int CL_API_CALL
  POname (clEnqueueSVMMigrateMem) (cl_command_queue command_queue,
                                   cl_uint num_svm_pointers,
                                   const void **svm_pointers,
                                   const size_t *sizes,
                                   cl_mem_migration_flags flags,
                                   cl_uint num_events_in_wait_list,
                                   const cl_event *event_wait_list,
                                   cl_event *event) CL_API_SUFFIX__VERSION_2_1
  {
    unsigned i;
    cl_int errcode;
  
    POCL_RETURN_ERROR_COND ((!IS_CL_OBJECT_VALID (command_queue)),
                            CL_INVALID_COMMAND_QUEUE);
  
    POCL_RETURN_ERROR_ON (
        (command_queue->context->svm_allocdev == NULL), CL_INVALID_OPERATION,
        "None of the devices in this context is SVM-capable\n");
  
    POCL_RETURN_ERROR_ON (
        (command_queue->context->svm_allocdev == NULL), CL_INVALID_OPERATION,
        "None of the devices in this context is SVM-capable\n");
  
    POCL_RETURN_ERROR_COND ((svm_pointers == NULL), CL_INVALID_VALUE);
  
    POCL_RETURN_ERROR_COND ((num_svm_pointers == 0), CL_INVALID_VALUE);
  
    cl_mem_migration_flags not_valid_flags = ~(
        CL_MIGRATE_MEM_OBJECT_HOST | CL_MIGRATE_MEM_OBJECT_CONTENT_UNDEFINED);
    POCL_RETURN_ERROR_ON ((flags & not_valid_flags), CL_INVALID_VALUE,
                          "invalid flags given\n");
  
    for (i = 0; i < num_svm_pointers; ++i)
      {
        POCL_RETURN_ERROR_COND ((svm_pointers[i] == NULL), CL_INVALID_VALUE);
      }
  
    errcode = pocl_check_event_wait_list (command_queue, num_events_in_wait_list,
                                          event_wait_list);
    if (errcode != CL_SUCCESS)
      return errcode;
  
    _cl_command_node *cmd = NULL;
    errcode = pocl_create_command (
        &cmd, command_queue, CL_COMMAND_SVM_MIGRATE_MEM, event,
        num_events_in_wait_list, event_wait_list, 0, NULL, NULL);
  
    if (errcode != CL_SUCCESS)
      {
        POCL_MEM_FREE (cmd);
        return errcode;
      }
  
    if (sizes)
      {
        size_t *s = malloc (num_svm_pointers * sizeof (size_t));
        memcpy (s, sizes, num_svm_pointers * sizeof (size_t));
        cmd->command.svm_migrate.sizes = s;
      }
    else
      cmd->command.svm_migrate.sizes = NULL;
  
    void **p = malloc (num_svm_pointers * sizeof (void *));
    memcpy (p, svm_pointers, num_svm_pointers * sizeof (void *));
    cmd->command.svm_migrate.svm_pointers = p;
    cmd->command.svm_migrate.num_svm_pointers = num_svm_pointers;
  
    pocl_command_enqueue (command_queue, cmd);
  
    return CL_SUCCESS;
  }
  POsym (clEnqueueSVMMigrateMem)
  