dmaengine: dmatest: Add support for multi channel testing

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Add support for running tests on multiple channels simultaneously as the
driver currently limits to 1 channel per test run. This will add support
for stress testing DMA controllers with multi channel capabilities.

This is done by adding a callback function to the "channel" parameter
that registers the requested channel prior to the "run" parameter being
set to 1. Each time the "channel" parameter is populated with a new
dma channel, a new test is appended to the thread queue. Once the "run"
parameter is set to 1, the test will kick start all pending threads.

Signed-off-by: Seraj Alijan <seraj.alijan@sondrel.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Seraj Alijan 2018-12-10 08:52:31 +00:00 • committed by Vinod Koul

parent 3f3c75541f

commit d53513d5dc

1 changed files with 177 additions and 19 deletions

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drivers/dma/dmatest.c

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