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device_prep_dma_memcpy
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make delicate dma work in liner mode
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device_prep_slave_sg
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device_prep_dma_memset
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device_prep_dma_memset_sg
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device_prep_dma_cyclic
cd /sys/module/dmatest/parameters
# loop count
# when should tx_status get called
echo 100 > iterations
echo 1 > timeout
# add channel testing thread
echo 0 > channel
echo dma0chan0 > channel
echo dma0chan1 > channel
echo dma0chan2 > channel
echo dma0chan3 > channel
echo dma0chan4 > channel
echo dma0chan5 > channel
echo dma0chan6 > channel
echo dma0chan7 > channel
echo 1 > run
echo 0 > run
The Delicate DMA shouldn't test by this method, because it work in liner mode If address is not liner, the work process of delicate dma will stop
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