dmaengine: dmatest: add norandom option
Existing option noverify disables both random src/dst address offset setup and data verification. Sometimes, we need to control random src/dst address setup and verification separately, such as disabling random to make sure that test covers addresses in all interleaving banks, but data verification is still performed. This patch adds option norandom to disable random offset setup. Option noverify has been changed to disable data verification only. Cc: Joey Zheng <yu.zheng@hxt-semitech.com> Signed-off-by: Yang Shunyong <shunyong.yang@hxt-semitech.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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@ -74,7 +74,11 @@ MODULE_PARM_DESC(timeout, "Transfer Timeout in msec (default: 3000), "
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static bool noverify;
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module_param(noverify, bool, S_IRUGO | S_IWUSR);
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MODULE_PARM_DESC(noverify, "Disable random data setup and verification");
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MODULE_PARM_DESC(noverify, "Disable data verification (default: verify)");
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static bool norandom;
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module_param(norandom, bool, 0644);
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MODULE_PARM_DESC(norandom, "Disable random offset setup (default: random)");
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static bool verbose;
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module_param(verbose, bool, S_IRUGO | S_IWUSR);
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@ -103,6 +107,7 @@ struct dmatest_params {
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unsigned int pq_sources;
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int timeout;
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bool noverify;
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bool norandom;
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};
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/**
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@ -575,7 +580,7 @@ static int dmatest_func(void *data)
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break;
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}
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if (params->noverify)
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if (params->norandom)
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len = params->buf_size;
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else
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len = dmatest_random() % params->buf_size + 1;
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@ -586,17 +591,19 @@ static int dmatest_func(void *data)
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total_len += len;
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if (params->noverify) {
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if (params->norandom) {
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src_off = 0;
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dst_off = 0;
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} else {
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start = ktime_get();
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src_off = dmatest_random() % (params->buf_size - len + 1);
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dst_off = dmatest_random() % (params->buf_size - len + 1);
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src_off = (src_off >> align) << align;
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dst_off = (dst_off >> align) << align;
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}
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if (!params->noverify) {
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start = ktime_get();
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dmatest_init_srcs(thread->srcs, src_off, len,
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params->buf_size, is_memset);
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dmatest_init_dsts(thread->dsts, dst_off, len,
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@ -975,6 +982,7 @@ static void run_threaded_test(struct dmatest_info *info)
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params->pq_sources = pq_sources;
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params->timeout = timeout;
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params->noverify = noverify;
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params->norandom = norandom;
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request_channels(info, DMA_MEMCPY);
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request_channels(info, DMA_MEMSET);
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