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 30 patches in this subsystem on linux-arch (capped at 30), ordered by date desc.

• COLD32d [PATCH v18 28/42] dept: assign unique dept_key to each distinct dma fence caller
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• COLD32d [PATCH v18 20/42] dept: apply timeout consideration to dma fence wait
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• COLD32d [PATCH v18 14/42] dept: apply sdt_might_sleep_{start,end}() to dma fence
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• STALE206d [PATCH v17 32/47] dept: assign unique dept_key to each distinct dma fence caller
  2025-10-02 · Byungchul Park <byungchul@sk.com>
• STALE206d [PATCH v17 23/47] dept: apply timeout consideration to dma fence wait
  2025-10-02 · Byungchul Park <byungchul@sk.com>
• STALE206d [PATCH v17 17/47] dept: apply sdt_might_sleep_{start,end}() to dma fence
  2025-10-02 · Byungchul Park <byungchul@sk.com>
• STALE1063d [RFC PATCH 10/10] memory-provider: add dmabuf devmem provider
  2023-07-10 · Mina Almasry <hidden>
• STALE1063d [RFC PATCH 03/10] dma-buf: add support for NET_TX pages
  2023-07-10 · Mina Almasry <hidden>
• STALE1063d [RFC PATCH 02/10] dma-buf: add support for NET_RX pages
  2023-07-10 · Mina Almasry <hidden>
• STALE1063d [RFC PATCH 01/10] dma-buf: add support for paged attachment mappings
  2023-07-10 · Mina Almasry <hidden>
• STALE2075d [PATCH 5/9] dma-mapping: merge <linux/dma-contiguous.h> into <linux/dma-map-ops.h>
  2020-09-30 · Christoph Hellwig <hch@lst.de>
• STALE2542d [PATCH v1 01/22] docs: Documentation/*.txt: rename all ReST files to *.rst
  2019-06-18 · Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
• STALE2542d [PATCH v1 12/22] docs: driver-api: add .rst files from the main dir
  2019-06-18 · Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
• STALE2559d [PATCH v1 12/22] docs: driver-api: add .rst files from the main dir
  2019-06-18 · Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
• STALE2618d [PATCH v2 56/79] docs: Documentation/*.txt: rename all ReST files to *.rst
  2019-04-22 · Mauro Carvalho Chehab <hidden>
• STALE4369d Re: [PATCH v2 1/9] dma-buf: move to drivers/dma-buf
  2014-07-01 · Maarten Lankhorst <hidden>
• STALE4369d REVIEWED: 1 (0M) [PATCH v2 9/9] reservation: add suppport for read-only access using rcu
  2014-07-01 · Maarten Lankhorst <hidden>
• STALE4369d [PATCH v2 8/9] reservation: update api and add some helpers
  2014-07-01 · Maarten Lankhorst <hidden>
• STALE4369d [PATCH v2 7/9] dma-buf: add poll support, v3
  2014-07-01 · Maarten Lankhorst <hidden>
• STALE4369d [PATCH v2 4/9] dma-buf: use reservation objects
  2014-07-01 · Maarten Lankhorst <hidden>
• STALE4369d [PATCH v2 3/9] seqno-fence: Hardware dma-buf implementation of fencing (v6)
  2014-07-01 · Maarten Lankhorst <hidden>
• STALE4369d REVIEWED: 1 (0M) [PATCH v2 2/9] fence: dma-buf cross-device synchronization (v18)
  2014-07-01 · Maarten Lankhorst <hidden>
• STALE4369d [PATCH v2 1/9] dma-buf: move to drivers/dma-buf
  2014-07-01 · Maarten Lankhorst <hidden>
• STALE4370d [REPOST PATCH 6/8] dma-buf: add poll support, v3
  2014-06-18 · Maarten Lankhorst <hidden>
• STALE4370d [REPOST PATCH 3/8] dma-buf: use reservation objects
  2014-06-18 · Maarten Lankhorst <hidden>
• STALE4419d [PATCH 6/6] dma-buf: add poll support, v3
  2014-02-24 · Maarten Lankhorst <hidden>
• STALE4419d [PATCH 3/6] dma-buf: use reservation objects
  2014-02-24 · Maarten Lankhorst <hidden>
• STALE4495d [PATCH 6/6] dma-buf: add poll support, v2
  2014-02-17 · Maarten Lankhorst <hidden>
• STALE4495d [PATCH 3/6] dma-buf: use reservation objects
  2014-02-17 · Maarten Lankhorst <hidden>
• STALE4543d [PATCH 7/7] dma-buf: add poll support
  2014-01-13 · Maarten Lankhorst <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.

• COLD32d [PATCH v18 14/42] dept: apply sdt_might_sleep_{start,end}() to dma fence
  2025-12-05 · Byungchul Park <byungchul@sk.com>
• COLD32d [PATCH v18 28/42] dept: assign unique dept_key to each distinct dma fence caller
  2025-12-05 · Byungchul Park <byungchul@sk.com>