61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
/* phsa_queue_interface.h -- Definition for a minimalistic generic in-memory
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representation of a user mode queue to be used with the phsa/gccbrig
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implementation.
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Copyright (C) 2015-2020 Free Software Foundation, Inc.
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Contributed by Pekka Jaaskelainen <pekka.jaaskelainen@parmance.com>
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for General Processor Tech.
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files
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(the "Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef PHSA_QUEUE_INTERFACE_H
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#define PHSA_QUEUE_INTERFACE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include "hsa.h"
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typedef __attribute__ ((aligned (64))) struct phsa_queue_s
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{
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/* An HSA Architectured Queue object. Must be in the beginning
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of the struct to enable direct pointer casting between hsa_queue_
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and phsa_queue_t. */
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hsa_queue_t hsa_queue;
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volatile uint64_t write_index;
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volatile uint64_t read_index;
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/* True if global mem addresses are 64b. */
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uint64_t is_ptr64 : 1;
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} phsa_queue_t;
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#ifdef __cplusplus
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}
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#endif
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#endif
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