libhsail-rt/rt/misc.c

   1 /* misc.c -- Builtins for HSAIL misc instructions.
   2
   3    Copyright (C) 2015-2017 Free Software Foundation, Inc.
   4    Contributed by Pekka Jaaskelainen <pekka.jaaskelainen@parmance.com>
   5    for General Processor Tech.
   6
   7    Permission is hereby granted, free of charge, to any person obtaining a
   8    copy of this software and associated documentation files
   9    (the "Software"), to deal in the Software without restriction, including
  10    without limitation the rights to use, copy, modify, merge, publish,
  11    distribute, sublicense, and/or sell copies of the Software, and to
  12    permit persons to whom the Software is furnished to do so, subject to
  13    the following conditions:
  14
  15    The above copyright notice and this permission notice shall be included
  16    in all copies or substantial portions of the Software.
  17
  18    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19    OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21    IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
  22    DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23    OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24    USE OR OTHER DEALINGS IN THE SOFTWARE.
  25 */
  26
  27 #include <stdint.h>
  28 #include <time.h>
  29
  30 #include "workitems.h"
  31
  32 /* Return the monotonic clock as nanoseconds.  */
  33
  34 uint64_t
  35 __hsail_clock ()
  36 {
  37   struct timespec t;
  38   clock_gettime (CLOCK_MONOTONIC, &t);
  39   return (uint64_t) t.tv_sec * 1000000000 + (uint64_t) t.tv_nsec;
  40 }
  41
  42 uint32_t
  43 __hsail_cuid (PHSAWorkItem *wi)
  44 {
  45   /* All WIs are executed with a single compute unit (core/thread)
  46      for now.  */
  47   return 0;
  48 }
  49
  50 uint32_t
  51 __hsail_maxcuid (PHSAWorkItem *wi)
  52 {
  53   /* All WIs are executed with a single compute unit (core/thread)
  54      for now.  */
  55   return 0;
  56 }
  57
  58 void
  59 __hsail_debugtrap (uint32_t src, PHSAWorkItem *wi)
  60 {
  61   /* Could we produce a SIGTRAP signal here to drop to gdb
  62      console, or similar?  In any case, the execution of the
  63      kernel should halt.
  64   */
  65   return;
  66 }
  67
  68 uint32_t
  69 __hsail_groupbaseptr (PHSAWorkItem *wi)
  70 {
  71   return (uint32_t) (uintptr_t) (wi->wg->group_base_ptr
  72                                  - wi->launch_data->group_segment_start_addr);
  73 }
  74
  75 uint64_t
  76 __hsail_kernargbaseptr_u64 (PHSAWorkItem *wi)
  77 {
  78   /* For now assume only a single kernarg allocation at a time.
  79      Proper kernarg memory management to do.  */
  80   return (uint64_t) (uintptr_t) wi->launch_data->kernarg_addr;
  81 }
  82
  83 uint32_t
  84 __hsail_kernargbaseptr_u32 (PHSAWorkItem *wi)
  85 {
  86   /* For now assume only a single kernarg allocation at a time.
  87      Proper kernarg memory management to do.  */
  88   return 0;
  89 }