dmaengine: hisilicon: Add Kunpeng DMA engine support

This patch adds a driver for HiSilicon Kunpeng DMA engine. This DMA engine which is an PCIe iEP offers 30 channels, each channel has a send queue, a complete queue and an interrupt to help to do tasks. This DMA engine can do memory copy between memory blocks or between memory and device buffer. Signed-off-by: Zhou Wang <[email protected]> Signed-off-by: Zhenfa Qiu <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Vinod Koul <[email protected]>
NVIDIA-BaseOS-6 · Jan 24, 2020 · e9f08b6 · e9f08b6
1 parent 42d279f
commit e9f08b6
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diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
@@ -239,6 +239,14 @@ config FSL_RAID
 	  the capability to offload memcpy, xor and pq computation
 	  for raid5/6.
 
+config HISI_DMA
+	tristate "HiSilicon DMA Engine support"
+	depends on ARM64 || (COMPILE_TEST && PCI_MSI)
+	select DMA_ENGINE
+	select DMA_VIRTUAL_CHANNELS
+	help
+	  Support HiSilicon Kunpeng DMA engine.
+
 config IMG_MDC_DMA
 	tristate "IMG MDC support"
 	depends on MIPS || COMPILE_TEST

diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_FSL_EDMA) += fsl-edma.o fsl-edma-common.o
 obj-$(CONFIG_MCF_EDMA) += mcf-edma.o fsl-edma-common.o
 obj-$(CONFIG_FSL_QDMA) += fsl-qdma.o
 obj-$(CONFIG_FSL_RAID) += fsl_raid.o
+obj-$(CONFIG_HISI_DMA) += hisi_dma.o
 obj-$(CONFIG_HSU_DMA) += hsu/
 obj-$(CONFIG_IMG_MDC_DMA) += img-mdc-dma.o
 obj-$(CONFIG_IMX_DMA) += imx-dma.o