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| author | David Rientjes <rientjes@google.com> | 2020-04-15 02:04:52 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2020-04-20 12:08:45 +0200 |
| commit | e860c299ac0d738b44ff91693f11e63080a29698 (patch) | |
| tree | 83a12cd22838d82b62b71575c7ea6777750137cb /kernel/dma/Kconfig | |
| parent | dma-debug: make __dma_entry_alloc_check_leak() static (diff) | |
| download | linux-e860c299ac0d738b44ff91693f11e63080a29698.tar.xz linux-e860c299ac0d738b44ff91693f11e63080a29698.zip | |
dma-remap: separate DMA atomic pools from direct remap code
DMA atomic pools will be needed beyond only CONFIG_DMA_DIRECT_REMAP so
separate them out into their own file.
This also adds a new Kconfig option that can be subsequently used for
options, such as CONFIG_AMD_MEM_ENCRYPT, that will utilize the coherent
pools but do not have a dependency on direct remapping.
For this patch alone, there is no functional change introduced.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David Rientjes <rientjes@google.com>
[hch: fixup copyrights and remove unused includes]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'kernel/dma/Kconfig')
| -rw-r--r-- | kernel/dma/Kconfig | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig index 4c103a24e380..d006668c0027 100644 --- a/kernel/dma/Kconfig +++ b/kernel/dma/Kconfig @@ -79,10 +79,14 @@ config DMA_REMAP select DMA_NONCOHERENT_MMAP bool -config DMA_DIRECT_REMAP +config DMA_COHERENT_POOL bool select DMA_REMAP +config DMA_DIRECT_REMAP + bool + select DMA_COHERENT_POOL + config DMA_CMA bool "DMA Contiguous Memory Allocator" depends on HAVE_DMA_CONTIGUOUS && CMA |