kernel_optimize_test/kernel/dma/Kconfig
Christoph Hellwig f3ecc0ff04 dma-mapping: move the dma_coherent flag to struct device
Various architectures support both coherent and non-coherent dma on a
per-device basis.  Move the dma_noncoherent flag from the mips archdata
field to struct device proper to prepare the infrastructure for reuse on
other architectures.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Paul Burton <paul.burton@mips.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-20 09:01:15 +02:00

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config HAS_DMA
bool
depends on !NO_DMA
default y
config NEED_SG_DMA_LENGTH
bool
config NEED_DMA_MAP_STATE
bool
config ARCH_DMA_ADDR_T_64BIT
def_bool 64BIT || PHYS_ADDR_T_64BIT
config ARCH_HAS_DMA_COHERENCE_H
bool
config HAVE_GENERIC_DMA_COHERENT
bool
config ARCH_HAS_SYNC_DMA_FOR_DEVICE
bool
config ARCH_HAS_SYNC_DMA_FOR_CPU
bool
select NEED_DMA_MAP_STATE
config ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
bool
config DMA_DIRECT_OPS
bool
depends on HAS_DMA
config DMA_NONCOHERENT_OPS
bool
depends on HAS_DMA
select DMA_DIRECT_OPS
config DMA_NONCOHERENT_MMAP
bool
depends on DMA_NONCOHERENT_OPS
config DMA_NONCOHERENT_CACHE_SYNC
bool
depends on DMA_NONCOHERENT_OPS
config DMA_VIRT_OPS
bool
depends on HAS_DMA
config SWIOTLB
bool
select DMA_DIRECT_OPS
select NEED_DMA_MAP_STATE