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| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2012-09-10 14:53:27 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2012-09-10 15:04:19 +0200 |
| commit | d5bbf34613a877dbe3da847fa0432da8c6721e73 (patch) | |
| tree | 902a90fd7eda61aad7abae9c35b0da2e7a786995 /arch/arm/mm/Kconfig | |
| parent | c6c1f7a2c194f1a2291a15c6691c0d6785f8976e (diff) | |
| parent | 336961dd3cf9c39456dd9657e8f205718740c797 (diff) | |
Merge branch 'l4t/l4t-r16' into colibri
Merge with latest NVIDIA L4T R16.
Only real conflict concerning inverted VBUS gpio support.
Diffstat (limited to 'arch/arm/mm/Kconfig')
| -rw-r--r-- | arch/arm/mm/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index aaea6d487bae..e23ad5ebc330 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -885,6 +885,17 @@ config ARM_DMA_MEM_BUFFERABLE You are recommended say 'Y' here and debug any affected drivers. +config NON_ALIASED_COHERENT_MEM + bool "Avoid aliasing mappings in DMA coherent allocator" if CPU_V7 + help + Avoid multiple mappings with DMA coherent/writecombine allocator by + pre-allocating the mappings, and removing that memory from the + system memory mapping. + + This will make sure DMA memory is fully coherent, so cache + dma_sync APIs will not be necessary to maintain cache cohereny + for DMA coherent region. + config ARCH_HAS_BARRIERS bool help |