diff options
Diffstat (limited to 'libhsail-rt/include/internal/phsa-queue-interface.h')
-rw-r--r-- | libhsail-rt/include/internal/phsa-queue-interface.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/libhsail-rt/include/internal/phsa-queue-interface.h b/libhsail-rt/include/internal/phsa-queue-interface.h new file mode 100644 index 00000000000..646cee4eb55 --- /dev/null +++ b/libhsail-rt/include/internal/phsa-queue-interface.h @@ -0,0 +1,60 @@ +/* phsa_queue_interface.h -- Definition for a minimalistic generic in-memory + representation of a user mode queue to be used with the phsa/gccbrig + implementation. + + Copyright (C) 2015-2016 Free Software Foundation, Inc. + Contributed by Pekka Jaaskelainen <pekka.jaaskelainen@parmance.com> + for General Processor Tech. + + 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. +*/ + +#ifndef PHSA_QUEUE_INTERFACE_H +#define PHSA_QUEUE_INTERFACE_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <stdbool.h> +#include <stddef.h> +#include <stdint.h> +#include "hsa.h" + +typedef __attribute__ ((aligned (64))) struct phsa_queue_s +{ + /* An HSA Architectured Queue object. Must be in the beginning + of the struct to enable direct pointer casting between hsa_queue_ + and phsa_queue_t. */ + hsa_queue_t hsa_queue; + + volatile uint64_t write_index; + volatile uint64_t read_index; + + /* True if global mem addresses are 64b. */ + uint64_t is_ptr64 : 1; + +} phsa_queue_t; + +#ifdef __cplusplus +} +#endif + +#endif |