/* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
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* notice , this list of conditions and the following disclaimer .
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* 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
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* ON ANY THEORY OF LIABILITY , WHETHER IN CONTRACT , STRICT LIABILITY , OR TORT
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*/
#include "bman_test.h"
#define NUM_BUFS 93
#define LOOPS 3
#define BMAN_TOKEN_MASK 0 x00FFFFFFFFFFLLU
static struct bman_pool *pool;
static struct bm_buffer bufs_in[NUM_BUFS] ____cacheline_aligned;
static struct bm_buffer bufs_out[NUM_BUFS] ____cacheline_aligned;
static int bufs_received;
static void bufs_init(void )
{
int i;
for (i = 0 ; i < NUM_BUFS; i++)
bm_buffer_set64(&bufs_in[i], 0 xfedc01234567LLU * i);
bufs_received = 0 ;
}
static inline int bufs_cmp(const struct bm_buffer *a, const struct bm_buffer *b)
{
if (bman_ip_rev == BMAN_REV20 || bman_ip_rev == BMAN_REV21) {
/*
* 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 ;
}
static void 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 );
}
Messung V0.5 in Prozent C=91 H=89 G=89
¤ Dauer der Verarbeitung: 0.5 Sekunden
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