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| author | Christoph Hellwig <hch@lst.de> | 2019-10-29 10:53:30 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-11-11 10:52:18 +0100 |
| commit | 0f665b9e2a6d4cc963e6cd349d40320ed5281f95 (patch) | |
| tree | 2a5c08bc905e69cc1219a3148373c1db60fcbde9 /arch/xtensa/Kconfig | |
| parent | dma-mapping: merge the generic remapping helpers into dma-direct (diff) | |
| download | linux-0f665b9e2a6d4cc963e6cd349d40320ed5281f95.tar.xz linux-0f665b9e2a6d4cc963e6cd349d40320ed5281f95.zip | |
xtensa: use the generic uncached segment support
Switch xtensa over to use the generic uncached support, and thus the
generic implementations of dma_alloc_* and dma_alloc_*, which also
gains support for mmaping DMA memory. The non-working nommu DMA
support has been disabled, but could be re-enabled easily if platforms
that actually have an uncached segment show up.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/Kconfig')
| -rw-r--r-- | arch/xtensa/Kconfig | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index a8e7beb6b7b5..c95a34702242 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -3,8 +3,10 @@ config XTENSA def_bool y select ARCH_32BIT_OFF_T select ARCH_HAS_BINFMT_FLAT if !MMU - select ARCH_HAS_SYNC_DMA_FOR_CPU - select ARCH_HAS_SYNC_DMA_FOR_DEVICE + select ARCH_HAS_DMA_PREP_COHERENT if MMU + select ARCH_HAS_SYNC_DMA_FOR_CPU if MMU + select ARCH_HAS_SYNC_DMA_FOR_DEVICE if MMU + select ARCH_HAS_UNCACHED_SEGMENT if MMU select ARCH_USE_QUEUED_RWLOCKS select ARCH_USE_QUEUED_SPINLOCKS select ARCH_WANT_FRAME_POINTERS |