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| author | Christoph Hellwig <hch@lst.de> | 2018-04-24 09:00:54 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-05-09 06:58:01 +0200 |
| commit | 09230cbc1baba68e0ca1e7c489344ce5d35c6f27 (patch) | |
| tree | d125ba685e491df0cfb05660e30ece8a84a10643 /arch/unicore32 | |
| parent | mips,unicore32: swiotlb doesn't need sg->dma_length (diff) | |
| download | linux-09230cbc1baba68e0ca1e7c489344ce5d35c6f27.tar.xz linux-09230cbc1baba68e0ca1e7c489344ce5d35c6f27.zip | |
swiotlb: move the SWIOTLB config symbol to lib/Kconfig
This way we have one central definition of it, and user can select it as
needed. The new option is not user visible, which is the behavior
it had in most architectures, with a few notable exceptions:
- On x86_64 and mips/loongson3 it used to be user selectable, but
defaulted to y. It now is unconditional, which seems like the right
thing for 64-bit architectures without guaranteed availablity of
IOMMUs.
- on powerpc the symbol is user selectable and defaults to n, but
many boards select it. This change assumes no working setup
required a manual selection, but if that turned out to be wrong
we'll have to add another select statement or two for the respective
boards.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'arch/unicore32')
| -rw-r--r-- | arch/unicore32/Kconfig | 1 | ||||
| -rw-r--r-- | arch/unicore32/mm/Kconfig | 4 |
2 files changed, 1 insertions, 4 deletions
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index 82195714d20b..03f991e44288 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -20,6 +20,7 @@ config UNICORE32 select GENERIC_IOMAP select MODULES_USE_ELF_REL select NEED_DMA_MAP_STATE + select SWIOTLB help UniCore-32 is 32-bit Instruction Set Architecture, including a series of low-power-consumption RISC chip diff --git a/arch/unicore32/mm/Kconfig b/arch/unicore32/mm/Kconfig index 45b7f769375e..82759b6aba67 100644 --- a/arch/unicore32/mm/Kconfig +++ b/arch/unicore32/mm/Kconfig @@ -39,7 +39,3 @@ config CPU_TLB_SINGLE_ENTRY_DISABLE default y help Say Y here to disable the TLB single entry operations. - -config SWIOTLB - def_bool y - select DMA_DIRECT_OPS |