AcoSail/kernel_optimize_test
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kernel_optimize_test/kernel/dma/Kconfig

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dma-mapping: move all DMA mapping code to kernel/dma Currently the code is split over various files with dma- prefixes in the lib/ and drives/base directories, and the number of files keeps growing. Move them into a single directory to keep the code together and remove the file name prefixes. To match the irq infrastructure this directory is placed under the kernel/ directory. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-13 01:01:45 +08:00
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
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>
2018-08-19 20:53:20 +08:00
config ARCH_HAS_DMA_COHERENCE_H
bool
dma-mapping: move all DMA mapping code to kernel/dma Currently the code is split over various files with dma- prefixes in the lib/ and drives/base directories, and the number of files keeps growing. Move them into a single directory to keep the code together and remove the file name prefixes. To match the irq infrastructure this directory is placed under the kernel/ directory. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-13 01:01:45 +08:00
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
dma-mapping: add the missing ARCH_HAS_SYNC_DMA_FOR_CPU_ALL declaration The patch adding the infrastructure failed to actually add the symbol declaration, oops.. Fixes: faef87723a ("dma-noncoherent: add a arch_sync_dma_for_cpu_all hook") Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-09-11 14:54:57 +08:00
config ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
bool
dma-mapping: move all DMA mapping code to kernel/dma Currently the code is split over various files with dma- prefixes in the lib/ and drives/base directories, and the number of files keeps growing. Move them into a single directory to keep the code together and remove the file name prefixes. To match the irq infrastructure this directory is placed under the kernel/ directory. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-06-13 01:01:45 +08:00
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
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