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dmaengine: hisilicon: Add Kunpeng DMA engine support

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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 <wangzhou1@hisilicon.com>
Signed-off-by: Zhenfa Qiu <qiuzhenfa@hisilicon.com>
Link: https://lore.kernel.org/r/1579155057-80523-1-git-send-email-wangzhou1@hisilicon.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Zhou Wang
2020-01-16 14:10:57 +08:00
committed by Vinod Koul
parent 42d279f913
commit e9f08b6525
3 changed files with 620 additions and 0 deletions
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8
drivers/dma/Kconfig
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@@ -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

1
drivers/dma/Makefile
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@@ -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

611
drivers/dma/hisi_dma.c Normal file
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