spi: loopback-test: add option to use vmalloc'ed buffers

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Using vmalloc'ed buffers will use one SG entry for each page,
that may provoke DMA errors for large transfers.
Also vmalloc'ed buffers may cause errors on CPU's with VIVT cache.
Add this option to catch these errors when testing.
Note that to catch VIVT cache errors, checking the rx range
has to be disabled, so this option has been added as well.

Signed-off-by: Frode Isaksen <fisaksen@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Frode Isaksen 2017-02-23 19:02:01 +01:00 • committed by Mark Brown

parent fafd679407

commit 576333a1fb

1 changed files with 27 additions and 7 deletions

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drivers/spi/spi-loopback-test.c

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