1 /* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
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31 #include "bman_test.h"
35 #define BMAN_TOKEN_MASK 0x00FFFFFFFFFFLLU
37 static struct bman_pool *pool;
38 static struct bm_buffer bufs_in[NUM_BUFS] ____cacheline_aligned;
39 static struct bm_buffer bufs_out[NUM_BUFS] ____cacheline_aligned;
40 static int bufs_received;
42 static void bufs_init(void)
46 for (i = 0; i < NUM_BUFS; i++)
47 bm_buffer_set64(&bufs_in[i], 0xfedc01234567LLU * i);
51 static inline int bufs_cmp(const struct bm_buffer *a, const struct bm_buffer *b)
53 if (bman_ip_rev == BMAN_REV20 || bman_ip_rev == BMAN_REV21) {
56 * On SoCs with BMan revison 2.0, BMan only respects the 40
57 * LS-bits of buffer addresses, masking off the upper 8-bits on
58 * release commands. The API provides for 48-bit addresses
59 * because some SoCs support all 48-bits. When generating
60 * garbage addresses for testing, we either need to zero the
61 * upper 8-bits when releasing to BMan (otherwise we'll be
62 * disappointed when the buffers we acquire back from BMan
63 * don't match), or we need to mask the upper 8-bits off when
64 * comparing. We do the latter.
66 if ((bm_buffer_get64(a) & BMAN_TOKEN_MASK) <
67 (bm_buffer_get64(b) & BMAN_TOKEN_MASK))
69 if ((bm_buffer_get64(a) & BMAN_TOKEN_MASK) >
70 (bm_buffer_get64(b) & BMAN_TOKEN_MASK))
73 if (bm_buffer_get64(a) < bm_buffer_get64(b))
75 if (bm_buffer_get64(a) > bm_buffer_get64(b))
82 static void bufs_confirm(void)
86 for (i = 0; i < NUM_BUFS; i++) {
89 for (j = 0; j < NUM_BUFS; j++)
90 if (!bufs_cmp(&bufs_in[i], &bufs_out[j]))
92 WARN_ON(matches != 1);
97 void bman_test_api(void)
103 pr_info("%s(): Starting\n", __func__);
105 pool = bman_new_pool();
107 pr_crit("bman_new_pool() failed\n");
111 /* Release buffers */
114 while (i < NUM_BUFS) {
117 if (i + num > NUM_BUFS)
119 if (bman_release(pool, bufs_in + i, num)) {
120 pr_crit("bman_release() failed\n");
126 /* Acquire buffers */
132 tmp = bman_acquire(pool, bufs_out + i - num, num);
136 i = bman_acquire(pool, NULL, 1);
145 bman_free_pool(pool);
146 pr_info("%s(): Finished\n", __func__);