Commit adc0f941 authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Vinod Koul
Browse files

dmaengine: dmatest: Use dmaengine_get_dma_device 



By using the dmaengine_get_dma_device() to get the device for
dma_api use, the dmatest can support per channel coherency if it is
supported by the DMA controller.

Signed-off-by: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20201208090440.31792-11-peter.ujfalusi@ti.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent f082c6df

drivers/dma/dmatest.c

+8 −5
Original line number Diff line number Diff line
@@ -573,6 +573,7 @@ static int dmatest_func(void *data) 
	struct dmatest_params	*params;

	struct dma_chan		*chan;

	struct dma_device	*dev;

	struct device		*dma_dev;

	unsigned int		error_count;

	unsigned int		failed_tests = 0;

	unsigned int		total_tests = 0;
@@ -606,6 +607,8 @@ static int dmatest_func(void *data) 
	params = &info->params;

	chan = thread->chan;

	dev = chan->device;

	dma_dev = dmaengine_get_dma_device(chan);



	src = &thread->src;

	dst = &thread->dst;

	if (thread->type == DMA_MEMCPY) {
@@ -730,7 +733,7 @@ static int dmatest_func(void *data) 
			filltime = ktime_add(filltime, diff);

		}



		um = dmaengine_get_unmap_data(dev->dev, src->cnt + dst->cnt,

		um = dmaengine_get_unmap_data(dma_dev, src->cnt + dst->cnt,

					      GFP_KERNEL);

		if (!um) {

			failed_tests++;
@@ -745,10 +748,10 @@ static int dmatest_func(void *data) 
			struct page *pg = virt_to_page(buf);

			unsigned long pg_off = offset_in_page(buf);



			um->addr[i] = dma_map_page(dev->dev, pg, pg_off,

			um->addr[i] = dma_map_page(dma_dev, pg, pg_off,

						   um->len, DMA_TO_DEVICE);

			srcs[i] = um->addr[i] + src->off;

			ret = dma_mapping_error(dev->dev, um->addr[i]);

			ret = dma_mapping_error(dma_dev, um->addr[i]);

			if (ret) {

				result("src mapping error", total_tests,

				       src->off, dst->off, len, ret);
@@ -763,9 +766,9 @@ static int dmatest_func(void *data) 
			struct page *pg = virt_to_page(buf);

			unsigned long pg_off = offset_in_page(buf);



			dsts[i] = dma_map_page(dev->dev, pg, pg_off, um->len,

			dsts[i] = dma_map_page(dma_dev, pg, pg_off, um->len,

					       DMA_BIDIRECTIONAL);

			ret = dma_mapping_error(dev->dev, dsts[i]);

			ret = dma_mapping_error(dma_dev, dsts[i]);

			if (ret) {

				result("dst mapping error", total_tests,

				       src->off, dst->off, len, ret);

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