summaryrefslogtreecommitdiffstats
path: root/arch/s390/Kconfig
diff options
context:
space:
mode:
authorHeiko Carstens <heiko.carstens@de.ibm.com>2016-11-14 13:57:03 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2016-11-23 16:02:23 +0100
commite1231b0e487caea77d3dffeb737cb25bd3595c5b (patch)
tree0e42dd4c92929b186345975d3a91ff25c3a24153 /arch/s390/Kconfig
parent1e16b09666baaf2919f991064237961ca766e394 (diff)
downloadlinux-e1231b0e487caea77d3dffeb737cb25bd3595c5b.tar.bz2
s390: add cma support
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>
Diffstat (limited to 'arch/s390/Kconfig')
-rw-r--r--arch/s390/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index a159dfc27b76..2d05efa31df3 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -136,6 +136,7 @@ config S390
select HAVE_CMPXCHG_LOCAL
select HAVE_DEBUG_KMEMLEAK
select HAVE_DMA_API_DEBUG
+ select HAVE_DMA_CONTIGUOUS
select HAVE_DYNAMIC_FTRACE
select HAVE_DYNAMIC_FTRACE_WITH_REGS
select HAVE_EFFICIENT_UNALIGNED_ACCESS