diff options
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/Kconfig | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 6239c3df30a..e4dd0065da3 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -4,13 +4,14 @@ menuconfig DMADEVICES bool "DMA Engine support" - depends on (PCI && X86) || ARCH_IOP32X || ARCH_IOP33X || ARCH_IOP13XX || PPC - depends on !HIGHMEM64G + depends on !HIGHMEM64G && HAS_DMA help DMA engines can do asynchronous data transfers without involving the host CPU. Currently, this framework can be used to offload memory copies in the network stack and - RAID operations in the MD driver. + RAID operations in the MD driver. This menu only presents + DMA Device drivers supported by the configured arch, it may + be empty in some cases. if DMADEVICES @@ -55,10 +56,12 @@ comment "DMA Clients" config NET_DMA bool "Network: TCP receive copy offload" depends on DMA_ENGINE && NET + default (INTEL_IOATDMA || FSL_DMA) help This enables the use of DMA engines in the network stack to offload receive copy-to-user operations, freeing CPU cycles. - Since this is the main user of the DMA engine, it should be enabled; - say Y here. + + Say Y here if you enabled INTEL_IOATDMA or FSL_DMA, otherwise + say N. endif |