dma buffer sharing framework · Maintained

Maintainers

M Sumit Semwal <sumit.semwal@linaro.org>
M Christian König <christian.koenig@amd.com>

Paths

F Documentation/driver-api/dma-buf.rst
F Documentation/userspace-api/dma-buf-alloc-exchange.rst
F drivers/dma-buf/
F include/linux/*fence.h
F include/linux/dma-buf.h
F include/linux/dma-buf/
F include/linux/dma-resv.h
F rust/helpers/dma-resv.c

Last 30 days

Recent patches

Most-recent 10 patches in this subsystem on linux-coco, ordered by date desc.

COLD26d Re: [PATCH v5 1/2] dma-mapping: introduce DMA_ATTR_CC_SHARED for shared memory
2026-05-21 · Jason Gunthorpe <jgg@ziepe.ca>
COLD26d LANDED [PATCH v5 2/2] dma-buf: heaps: system: add system_cc_shared heap for explicitly shared memory
2026-03-25 · Jiri Pirko <jiri@resnulli.us>
STALE84d [PATCH v4 2/2] dma-buf: heaps: system: add system_cc_decrypted heap for explicitly decrypted memory
2026-03-16 · Jiri Pirko <jiri@resnulli.us>
STALE84d [PATCH net-next v3 2/2] dma-buf: heaps: system: add system_cc_decrypted heap for explicitly decrypted memory
2026-03-05 · Jiri Pirko <jiri@resnulli.us>
STALE112d [PATCH v2 2/2] dma-buf: heaps: system: add system_cc_decrypted heap for explicitly decrypted memory
2026-02-23 · Jiri Pirko <jiri@resnulli.us>
STALE114d [PATCH 5/5] dma-buf: heaps: system: add an option to allocate explicitly decrypted memory
2026-02-09 · Jiri Pirko <jiri@resnulli.us>
STALE114d [PATCH 4/5] dma-buf: heaps: allow heap to specify valid heap flags
2026-02-09 · Jiri Pirko <jiri@resnulli.us>
STALE114d [PATCH 3/5] dma-buf: heaps: use designated initializer for exp_info
2026-02-09 · Jiri Pirko <jiri@resnulli.us>
STALE337d [RFC PATCH 01/30] HACK: dma-buf: Introduce dma_buf_get_pfn_unlocked() kAPI
2025-05-29 · Xu Yilun <hidden>
COLD36d [RFC PATCH 01/12] dma-buf: Introduce dma_buf_get_pfn_unlocked() kAPI
2025-01-08 · Xu Yilun <hidden>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

STALE114d [PATCH 3/5] dma-buf: heaps: use designated initializer for exp_info
2026-02-09 · Jiri Pirko <jiri@resnulli.us>