diff options
Diffstat (limited to 'kernel/dma/Kconfig')
| -rw-r--r-- | kernel/dma/Kconfig | 25 |
1 files changed, 6 insertions, 19 deletions
diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig index d62f5957f36b..31cfdb6b4bc3 100644 --- a/kernel/dma/Kconfig +++ b/kernel/dma/Kconfig @@ -8,8 +8,7 @@ config HAS_DMA depends on !NO_DMA default y -config DMA_OPS - depends on HAS_DMA +config DMA_OPS_HELPERS bool # @@ -107,6 +106,11 @@ config DMA_BOUNCE_UNALIGNED_KMALLOC bool depends on SWIOTLB +config DMA_NEED_SYNC + def_bool ARCH_HAS_SYNC_DMA_FOR_DEVICE || ARCH_HAS_SYNC_DMA_FOR_CPU || \ + ARCH_HAS_SYNC_DMA_FOR_CPU_ALL || DMA_API_DEBUG || \ + ARCH_HAS_DMA_OPS || SWIOTLB + config DMA_RESTRICTED_POOL bool "DMA Restricted Pool" depends on OF && OF_RESERVED_MEM && SWIOTLB @@ -256,23 +260,6 @@ config DMA_API_DEBUG If unsure, say N. -config DMA_API_DEBUG_SG - bool "Debug DMA scatter-gather usage" - default y - depends on DMA_API_DEBUG - help - Perform extra checking that callers of dma_map_sg() have respected the - appropriate segment length/boundary limits for the given device when - preparing DMA scatterlists. - - This is particularly likely to have been overlooked in cases where the - dma_map_sg() API is used for general bulk mapping of pages rather than - preparing literal scatter-gather descriptors, where there is a risk of - unexpected behaviour from DMA API implementations if the scatterlist - is technically out-of-spec. - - If unsure, say N. - config DMA_MAP_BENCHMARK bool "Enable benchmarking of streaming DMA mapping" depends on DEBUG_FS |