diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2008-06-27 01:21:11 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2008-07-08 11:58:12 -0700 |
| commit | 9c402f4e196290692d998b188f9094deb1619e57 (patch) | |
| tree | d61209d265890e20d8d2933e88fb58c8075454ac /drivers | |
| parent | 1099dc79245719c046e632212ec09d6ec1154ef5 (diff) | |
dmaengine: remove arch dependency from DMADEVICES
The dependency is redundant since all drivers set their specific arch
dependencies. The NET_DMA option is modified to be enabled only on platforms
where it is known to have a positive effect. HAS_DMA is added as an explicit
dependency for the DMADEVICES menu.
Acked-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers')
| -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 |