CONFIG_AMD_QDMA: AMD Queue-based DMA

General informations

The Linux kernel configuration item CONFIG_AMD_QDMA:

• prompt: AMD Queue-based DMA
• type: tristate
• depends on: CONFIG_HAS_IOMEM
• defined in drivers/dma/amd/Kconfig
• found in Linux kernels: 6.12, 6.13-rc+HEAD
• modules built: qdma-comm-regs, qdma

Help text

Enable support for the AMD Queue-based DMA subsystem. The primary 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 either the Host to Card (H2C) direction or the Card to Host (C2H) direction.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module qdma CONFIG_AMD_QDMA : drivers/dma/amd/Kconfig : "AMD Queue-based DMA" # in 6.12, 6.13-rc+HEAD
• lkddb module qdma-comm-regs CONFIG_AMD_QDMA : drivers/dma/amd/Kconfig : "AMD Queue-based DMA" # in 6.12, 6.13-rc+HEAD
• lkddb platform "amd-qdma" : CONFIG_AMD_QDMA CONFIG_DMADEVICES : drivers/dma/amd/qdma/qdma.c # in 6.12, 6.13-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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