s390: add cma support

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In order to make the cma infrastructure usable we need to add a small
architecture backend which calls dma_contiguous_reserve.
Otherwise we would end up with the cma allocator enabled, but no pool
where memory can be allocated from.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Heiko Carstens 2016-11-14 13:57:03 +01:00 • committed by Martin Schwidefsky

parent 1e16b09666

commit e1231b0e48

3 changed files with 4 additions and 2 deletions

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1

arch/s390/Kconfig

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3

arch/s390/include/asm/Kbuild

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2

arch/s390/kernel/setup.c

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