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| author | Christoph Hellwig <hch@lst.de> | 2018-08-24 11:31:08 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-12-01 19:58:34 +0300 |
| commit | f0edfea8ef93ed6cc5f747c46c85c8e53e0798a0 (patch) | |
| tree | ec7062949a8e02aa77a5eede2295e060d2a0121f /arch | |
| parent | 704f2c20eaa566f6906e8812b6e2115889bd753d (diff) | |
| download | linux-f0edfea8ef93ed6cc5f747c46c85c8e53e0798a0.tar.xz | |
dma-mapping: move the remap helpers to a separate file
The dma remap code only makes sense for not cache coherent architectures
(or possibly the corner case of highmem CMA allocations) and currently
is only used by arm, arm64, csky and xtensa. Split it out into a
separate file with a separate Kconfig symbol, which gets the right
copyright notice given that this code was written by Laura Abbott
working for Code Aurora at that point.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm64/Kconfig | 1 | ||||
| -rw-r--r-- | arch/csky/Kconfig | 1 | ||||
| -rw-r--r-- | arch/xtensa/Kconfig | 1 |
4 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 91be74d8df65..3b2852df6eb3 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -30,6 +30,7 @@ config ARM select CPU_PM if (SUSPEND || CPU_IDLE) select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS select DMA_DIRECT_OPS if !MMU + select DMA_REMAP if MMU select EDAC_SUPPORT select EDAC_ATOMIC_SCRUB select GENERIC_ALLOCATOR diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 787d7850e064..5d065acb6d10 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -82,6 +82,7 @@ config ARM64 select CRC32 select DCACHE_WORD_ACCESS select DMA_DIRECT_OPS + select DMA_REMAP select EDAC_SUPPORT select FRAME_POINTER select GENERIC_ALLOCATOR diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig index cb64f8dacd08..8a30e006a845 100644 --- a/arch/csky/Kconfig +++ b/arch/csky/Kconfig @@ -9,6 +9,7 @@ config CSKY select CLKSRC_OF select DMA_DIRECT_OPS select DMA_NONCOHERENT_OPS + select DMA_REMAP select IRQ_DOMAIN select HANDLE_DOMAIN_IRQ select DW_APB_TIMER_OF diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index d29b7365da8d..239bfb16c58b 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -11,6 +11,7 @@ config XTENSA select CLONE_BACKWARDS select COMMON_CLK select DMA_DIRECT_OPS + select DMA_REMAP if MMU select GENERIC_ATOMIC64 select GENERIC_CLOCKEVENTS select GENERIC_IRQ_SHOW |