Re: [RESEND PATCH V2 QDMA 1/1] dmaengine: amd: qdma: Add AMD QDMA driver

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On 7/12/23 14:19, Randy Dunlap wrote:

On 7/12/23 09:25, Lizhi Hou wrote:
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 644c188d6a11..89b26e68988a 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -85,6 +85,19 @@ config AMCC_PPC440SPE_ADMA
  	  Enable support for the AMCC PPC440SPe RAID engines.
+config AMD_QDMA
+	tristate "AMD Queue-based DMA"
+	depends on HAS_IOMEM
+	select DMA_ENGINE
+	select REGMAP_MMIO
+	help
+	  Enable support for the AMD Queue-based DMA subsystem.The primary
Need a space...                                  DMA subsystem. The primary

Oh, ok. I will fix it.



+	  mechanism to transfer data using the QDMA is for the QDMA engine to
+	  operate on instructions (descriptors) provided by the host operating
+	  system. Using the descriptors, the QDMA can move data in both the Host
+	  to Card (H2C) direction, or the Card to Host (C2H) direction.

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