/* Copyright 2008 - 2016 Freescale Semiconductor, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Freescale Semiconductor nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * ALTERNATIVELY, this software may be distributed under the terms of the * GNU General Public License ("GPL") as published by the Free Software * Foundation, either version 2 of that License or (at your option) any * later version. * * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* * On SoCs with BMan revison 2.0, BMan only respects the 40 * LS-bits of buffer addresses, masking off the upper 8-bits on * release commands. The API provides for 48-bit addresses * because some SoCs support all 48-bits. When generating * garbage addresses for testing, we either need to zero the * upper 8-bits when releasing to BMan (otherwise we'll be * disappointed when the buffers we acquire back from BMan * don't match), or we need to mask the upper 8-bits off when * comparing. We do the latter.
*/ if ((bm_buffer_get64(a) & BMAN_TOKEN_MASK) <
(bm_buffer_get64(b) & BMAN_TOKEN_MASK)) return -1; if ((bm_buffer_get64(a) & BMAN_TOKEN_MASK) >
(bm_buffer_get64(b) & BMAN_TOKEN_MASK)) return 1;
} else { if (bm_buffer_get64(a) < bm_buffer_get64(b)) return -1; if (bm_buffer_get64(a) > bm_buffer_get64(b)) return 1;
}
return 0;
}
staticvoid bufs_confirm(void)
{ int i, j;
for (i = 0; i < NUM_BUFS; i++) { int matches = 0;
for (j = 0; j < NUM_BUFS; j++) if (!bufs_cmp(&bufs_in[i], &bufs_out[j]))
matches++;
WARN_ON(matches != 1);
}
}
/* test */ void bman_test_api(void)
{ int i, loops = LOOPS;
bufs_init();
pr_info("%s(): Starting\n", __func__);
pool = bman_new_pool(); if (!pool) {
pr_crit("bman_new_pool() failed\n"); goto failed;
}
/* Release buffers */
do_loop:
i = 0; while (i < NUM_BUFS) { int num = 8;
if (i + num > NUM_BUFS)
num = NUM_BUFS - i; if (bman_release(pool, bufs_in + i, num)) {
pr_crit("bman_release() failed\n"); goto failed;
}
i += num;
}
/* Acquire buffers */ while (i > 0) { int tmp, num = 8;
if (num > i)
num = i;
tmp = bman_acquire(pool, bufs_out + i - num, num);
WARN_ON(tmp != num);
i -= num;
}
i = bman_acquire(pool, NULL, 1);
WARN_ON(i > 0);
bufs_confirm();
if (--loops) goto do_loop;
/* Clean up */
bman_free_pool(pool);
pr_info("%s(): Finished\n", __func__); return;
failed:
WARN_ON(1);
}
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