diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2020-01-21 16:43:59 -0700 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2020-01-24 11:18:45 +0530 |
| commit | bfe1d56091c1a404b3d4ce7e9809d745fc4453bb (patch) | |
| tree | 5e53b468626dc7fb9533e4865258d8ba1dc69862 /drivers/dma/Kconfig | |
| parent | e81274cd6b5264809384066e09a5253708822522 (diff) | |
| download | linux-bfe1d56091c1a404b3d4ce7e9809d745fc4453bb.tar.gz | |
dmaengine: idxd: Init and probe for Intel data accelerators
The idxd driver introduces the Intel Data Stream Accelerator [1] that will be available on future Intel Xeon CPUs. One of the kernel access point for the driver is through the dmaengine subsystem. It will initially provide the DMA copy service to the kernel. Some of the main functionality introduced with this accelerator are: shared virtual memory (SVM) support, and descriptor submission using Intel CPU instructions movdir64b and enqcmds. There will be additional accelerator devices that share the same driver with variations to capabilities. This commit introduces the probe and initialization component of the driver. [1]: https://software.intel.com/en-us/download/intel-data-streaming-accelerator-preliminary-architecture-specification Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/157965023991.73301.6186843973135311580.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/Kconfig')
| -rw-r--r-- | drivers/dma/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 312a6cc36c78..a8f8e9552885 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -273,6 +273,19 @@ config INTEL_IDMA64 Enable DMA support for Intel Low Power Subsystem such as found on Intel Skylake PCH. +config INTEL_IDXD + tristate "Intel Data Accelerators support" + depends on PCI && X86_64 + select DMA_ENGINE + select SBITMAP + help + Enable support for the Intel(R) data accelerators present + in Intel Xeon CPU. + + Say Y if you have such a platform. + + If unsure, say N. + config INTEL_IOATDMA tristate "Intel I/OAT DMA support" depends on PCI && X86_64 |