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1 /* queue.c -- Builtins for HSAIL queue related instructions.
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2
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3 Copyright (C) 2015-2018 Free Software Foundation, Inc.
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4 Contributed by Pekka Jaaskelainen <pekka.jaaskelainen@parmance.com>
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5 for General Processor Tech.
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6
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7 Permission is hereby granted, free of charge, to any person obtaining a
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8 copy of this software and associated documentation files
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9 (the "Software"), to deal in the Software without restriction, including
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10 without limitation the rights to use, copy, modify, merge, publish,
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11 distribute, sublicense, and/or sell copies of the Software, and to
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12 permit persons to whom the Software is furnished to do so, subject to
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13 the following conditions:
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14
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15 The above copyright notice and this permission notice shall be included
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16 in all copies or substantial portions of the Software.
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17
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18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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19 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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21 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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22 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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23 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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24 USE OR OTHER DEALINGS IN THE SOFTWARE.
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25 */
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26
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27 #include "phsa-queue-interface.h"
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28
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29 uint64_t
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30 __hsail_ldqueuereadindex (uint64_t queue_addr)
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31 {
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32 phsa_queue_t *queue = (phsa_queue_t *) (uintptr_t) queue_addr;
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33 return queue->read_index;
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34 }
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35
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36 uint64_t
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37 __hsail_ldqueuewriteindex (uint64_t queue_addr)
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38 {
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39 phsa_queue_t *queue = (phsa_queue_t *) (uintptr_t) queue_addr;
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40 return queue->write_index;
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41 }
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42
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43 uint64_t
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44 __hsail_addqueuewriteindex (uint64_t queue_addr, uint64_t value)
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45 {
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46 phsa_queue_t *queue = (phsa_queue_t *) (uintptr_t) queue_addr;
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47 return __sync_fetch_and_add (&queue->write_index, value);
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48 }
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49
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50 uint64_t
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51 __hsail_casqueuewriteindex (uint64_t queue_addr, uint64_t cmp_value,
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52 uint64_t new_value)
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53 {
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54 phsa_queue_t *queue = (phsa_queue_t *) (uintptr_t) queue_addr;
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55 return __sync_val_compare_and_swap (&queue->write_index, cmp_value,
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56 new_value);
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57 }
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58
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59 void
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60 __hsail_stqueuereadindex (uint64_t queue_addr, uint64_t value)
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61 {
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62 phsa_queue_t *queue = (phsa_queue_t *) (uintptr_t) queue_addr;
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63 queue->read_index = value;
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64 }
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65
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66 void
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67 __hsail_stqueuewriteindex (uint64_t queue_addr, uint64_t value)
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68 {
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69 phsa_queue_t *queue = (phsa_queue_t *) (uintptr_t) queue_addr;
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70 queue->write_index = value;
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71 }
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