| /* 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) 2015-2018 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 |