drivers/dma-buf/Makefile

File Facts

System

Linux kernel

Corpus path

drivers/dma-buf/Makefile

Extension

[no extension]

Size

516 bytes

Lines

17

Domain

Driver Families

Bucket

drivers/dma-buf

Inferred role

Driver Families: build/configuration rule

Status

atlas-only

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0-only
obj-y := dma-buf.o dma-fence.o dma-fence-array.o dma-fence-chain.o \
	 dma-fence-unwrap.o dma-resv.o dma-buf-mapping.o
obj-$(CONFIG_DMABUF_HEAPS)	+= dma-heap.o
obj-$(CONFIG_DMABUF_HEAPS)	+= heaps/
obj-$(CONFIG_SYNC_FILE)		+= sync_file.o
obj-$(CONFIG_SW_SYNC)		+= sw_sync.o sync_debug.o
obj-$(CONFIG_UDMABUF)		+= udmabuf.o

dmabuf_kunit-y := \
	st-dma-fence.o \
	st-dma-fence-chain.o \
	st-dma-fence-unwrap.o \
	st-dma-resv.o

obj-$(CONFIG_DMABUF_KUNIT_TEST) += dmabuf_kunit.o

Annotation

• Atlas domain: Driver Families / drivers/dma-buf.
• Implementation status: atlas-only.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.