Commit 2e67a087 authored by Yang Shunyong's avatar Yang Shunyong Committed by Vinod Koul
Browse files

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: default avatarYang Shunyong <shunyong.yang@hxt-semitech.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 7928b2cb

drivers/dma/dmatest.c

+12 −4
Original line number Diff line number Diff line
@@ -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);

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