2 * Copyright © 2015 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
26 #include "anv_private.h"
28 #define NUM_THREADS 16
29 #define STATES_PER_THREAD 1024
35 struct anv_state_pool
*pool
;
36 uint32_t offsets
[STATES_PER_THREAD
];
39 pthread_barrier_t barrier
;
41 static void *alloc_states(void *_job
)
43 struct job
*job
= _job
;
45 pthread_barrier_wait(&barrier
);
47 for (unsigned i
= 0; i
< STATES_PER_THREAD
; i
++) {
48 struct anv_state state
= anv_state_pool_alloc(job
->pool
, 16, 16);
49 job
->offsets
[i
] = state
.offset
;
55 static void run_test()
57 struct anv_device device
;
58 struct anv_block_pool block_pool
;
59 struct anv_state_pool state_pool
;
61 pthread_mutex_init(&device
.mutex
, NULL
);
62 anv_block_pool_init(&block_pool
, &device
, 64);
63 anv_state_pool_init(&state_pool
, &block_pool
);
65 pthread_barrier_init(&barrier
, NULL
, NUM_THREADS
);
67 for (unsigned i
= 0; i
< NUM_THREADS
; i
++) {
68 jobs
[i
].pool
= &state_pool
;
70 pthread_create(&jobs
[i
].thread
, NULL
, alloc_states
, &jobs
[i
]);
73 for (unsigned i
= 0; i
< NUM_THREADS
; i
++)
74 pthread_join(jobs
[i
].thread
, NULL
);
76 /* A list of indices, one per thread */
77 unsigned next
[NUM_THREADS
];
78 memset(next
, 0, sizeof(next
));
82 /* First, we find which thread has the highest next element */
84 int max_thread_idx
= -1;
85 for (unsigned i
= 0; i
< NUM_THREADS
; i
++) {
86 if (next
[i
] >= STATES_PER_THREAD
)
89 if (thread_max
< jobs
[i
].offsets
[next
[i
]]) {
90 thread_max
= jobs
[i
].offsets
[next
[i
]];
95 /* The only way this can happen is if all of the next[] values are at
96 * BLOCKS_PER_THREAD, in which case, we're done.
101 /* That next element had better be higher than the previous highest */
102 assert(jobs
[max_thread_idx
].offsets
[next
[max_thread_idx
]] > highest
);
104 highest
= jobs
[max_thread_idx
].offsets
[next
[max_thread_idx
]];
105 next
[max_thread_idx
]++;
108 anv_state_pool_finish(&state_pool
);
109 anv_block_pool_finish(&block_pool
);
110 pthread_mutex_destroy(&device
.mutex
);
113 int main(int argc
, char **argv
)
115 for (unsigned i
= 0; i
< NUM_RUNS
; i
++)