tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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kernel / drivers / dma / amd / Kconfig
at v6.12-rc2 14 lines 537 B view raw
1# SPDX-License-Identifier: GPL-2.0-only 2 3config AMD_QDMA 4 tristate "AMD Queue-based DMA" 5 depends on HAS_IOMEM 6 select DMA_ENGINE 7 select DMA_VIRTUAL_CHANNELS 8 select REGMAP_MMIO 9 help 10 Enable support for the AMD Queue-based DMA subsystem. The primary 11 mechanism to transfer data using the QDMA is for the QDMA engine to 12 operate on instructions (descriptors) provided by the host operating 13 system. Using the descriptors, the QDMA can move data in either the 14 Host to Card (H2C) direction or the Card to Host (C2H) direction.