powerpc/pseries/iommu: Update remove_dma_window() to accept property name

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Update remove_dma_window() so it can be used to remove DDW with a given
property name.

This enables the creation of new property names for DDW, so we can
have different usage for it, like indirect mapping.

Also, add return values to it so we can check if the property was found
while removing the active DDW. This allows skipping the remaining property
names while reducing the impact of multiple property names.

Signed-off-by: Leonardo Bras <leobras.c@gmail.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210817063929.38701-9-leobras.c@gmail.com

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Leonardo Bras 2021-08-17 03:39:26 -03:00 • committed by Michael Ellerman

parent fc8cba8f98

commit a5fd95120c

1 changed files with 10 additions and 8 deletions

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arch/powerpc/platforms/pseries/iommu.c

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