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| author | Yang Shunyong <shunyong.yang@hxt-semitech.com> | 2018-02-02 17:51:09 +0800 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2018-02-12 09:16:01 +0530 |
| commit | 2e67a0875b11b800f63d19e06d0254bbd8892188 (patch) | |
| tree | 8492819da403d3840ba34af08f771eb31098b739 /drivers/dma | |
| parent | 7928b2cbe55b2a410a0f5c1f154610059c57b1b2 (diff) | |
| download | linux-0-day-2e67a0875b11b800f63d19e06d0254bbd8892188.tar.gz linux-0-day-2e67a0875b11b800f63d19e06d0254bbd8892188.tar.xz | |
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>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dmatest.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index 80cc2be6483cb..b9339524d5bd3 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -74,7 +74,11 @@ MODULE_PARM_DESC(timeout, "Transfer Timeout in msec (default: 3000), " static bool noverify; module_param(noverify, bool, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(noverify, "Disable random data setup and verification"); +MODULE_PARM_DESC(noverify, "Disable data verification (default: verify)"); + +static bool norandom; +module_param(norandom, bool, 0644); +MODULE_PARM_DESC(norandom, "Disable random offset setup (default: random)"); static bool verbose; module_param(verbose, bool, S_IRUGO | S_IWUSR); @@ -103,6 +107,7 @@ struct dmatest_params { unsigned int pq_sources; int timeout; bool noverify; + bool norandom; }; /** @@ -575,7 +580,7 @@ static int dmatest_func(void *data) break; } - if (params->noverify) + if (params->norandom) len = params->buf_size; else len = dmatest_random() % params->buf_size + 1; @@ -586,17 +591,19 @@ static int dmatest_func(void *data) total_len += len; - if (params->noverify) { + if (params->norandom) { src_off = 0; dst_off = 0; } else { - start = ktime_get(); src_off = dmatest_random() % (params->buf_size - len + 1); dst_off = dmatest_random() % (params->buf_size - len + 1); src_off = (src_off >> align) << align; dst_off = (dst_off >> align) << align; + } + if (!params->noverify) { + start = ktime_get(); dmatest_init_srcs(thread->srcs, src_off, len, params->buf_size, is_memset); dmatest_init_dsts(thread->dsts, dst_off, len, @@ -975,6 +982,7 @@ static void run_threaded_test(struct dmatest_info *info) params->pq_sources = pq_sources; params->timeout = timeout; params->noverify = noverify; + params->norandom = norandom; request_channels(info, DMA_MEMCPY); request_channels(info, DMA_MEMSET); |