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-tegra (capped at 30), ordered by date desc.

• WARM1d [PATCH v3 08/11] dma-buf: heaps: Add support for Tegra VPR
  2026-07-01 · Thierry Reding <thierry.reding@kernel.org>
• WARM1d [PATCH v3 07/11] dma-buf: heaps: Add debugfs support
  2026-07-01 · Thierry Reding <thierry.reding@kernel.org>
• STALE65d [PATCH v2 06/10] dma-buf: heaps: Add support for Tegra VPR
  2026-01-22 · Thierry Reding <thierry.reding@kernel.org>
• STALE65d [PATCH v2 05/10] dma-buf: heaps: Add debugfs support
  2026-01-22 · Thierry Reding <thierry.reding@kernel.org>
• STALE65d [PATCH v2 04/10] mm/cma: Allow dynamically creating CMA areas
  2026-01-22 · Thierry Reding <thierry.reding@kernel.org>
• STALE281d [PATCH 5/9] dma-buf: heaps: Add support for Tegra VPR
  2025-09-02 · Thierry Reding <hidden>
• STALE281d [PATCH 4/9] dma-buf: heaps: Add debugfs support
  2025-09-02 · Thierry Reding <hidden>
• STALE758d LANDED [PATCH] tracing/treewide: Remove second parameter of __assign_str()
  2024-05-16 · Steven Rostedt <rostedt@goodmis.org>
• STALE848d [FYI][PATCH] tracing/treewide: Remove second parameter of __assign_str()
  2024-02-23 · Steven Rostedt <rostedt@goodmis.org>
• STALE1110d REVIEWED: 1 (0M) [PATCH v4 5/6] dma-buf: Change locking policy for mmap()
  2023-05-29 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1110d REVIEWED: 1 (0M) [PATCH v4 3/6] udmabuf: Don't assert held reservation lock for dma-buf mmapping
  2023-05-29 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1110d REVIEWED: 1 (0M) [PATCH v4 2/6] dma-buf/heaps: Don't assert held reservation lock for dma-buf mmapping
  2023-05-29 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1137d REVIEWED: 1 (0M) [PATCH v3 5/6] dma-buf: Change locking policy for mmap()
  2023-05-21 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1137d REVIEWED: 1 (0M) [PATCH v3 3/6] udmabuf: Don't assert held reservation lock for dma-buf mmapping
  2023-05-21 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1137d REVIEWED: 1 (0M) [PATCH v3 2/6] dma-buf/heaps: Don't assert held reservation lock for dma-buf mmapping
  2023-05-21 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1155d REVIEWED: 1 (0M) [PATCH v2 6/7] dma-buf: Change locking policy for mmap()
  2023-04-06 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1155d REVIEWED: 1 (0M) [PATCH v2 3/7] udmabuf: Don't assert held reservation lock for dma-buf mmapping
  2023-04-06 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1155d REVIEWED: 1 (0M) [PATCH v2 2/7] dma-buf/heaps: Don't assert held reservation lock for dma-buf mmapping
  2023-04-06 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1192d [PATCH v1 6/7] dma-buf: Change locking policy for mmap()
  2023-04-02 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1192d [PATCH v1 3/7] Revert "udmabuf: Assert held reservation lock for dma-buf mmapping"
  2023-04-02 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1192d [PATCH v1 2/7] Revert "dma-buf/heaps: Assert held reservation lock for dma-buf mmapping"
  2023-04-02 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1336d [PATCH v1 4/6] dma-buf/heaps: Assert held reservation lock for dma-buf mmapping
  2022-11-10 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1336d [PATCH v1 3/6] udmabuf: Assert held reservation lock for dma-buf mmapping
  2022-11-10 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1336d [PATCH v1 1/6] dma-buf: Move dma_buf_mmap_internal() to dynamic locking specification
  2022-11-10 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE1473d [PATCH 05/14] dma-buf: provide file RSS for DMA-buf files
  2022-06-24 · "Christian König" <ckoenig.leichtzumerken@gmail.com>
• STALE1486d [PATCH 04/13] dma-buf: provide oom badness for DMA-buf files
  2022-05-31 · "Christian König" <ckoenig.leichtzumerken@gmail.com>
• STALE1466d [PATCH v6 14/22] dma-buf: Introduce new locking convention
  2022-05-26 · Dmitry Osipenko <dmitry.osipenko@collabora.com>
• STALE2110d REVIEWED: 10 (9M) [PATCH v3 4/4] dma-buf: Document struct dma_buf_map
  2020-09-25 · Thomas Zimmermann <tzimmermann@suse.de>
• STALE2110d REVIEWED: 10 (9M) [PATCH v3 1/4] dma-buf: Add struct dma-buf-map for storing struct dma_buf.vaddr_ptr
  2020-09-25 · Thomas Zimmermann <tzimmermann@suse.de>
• STALE2110d REVIEWED: 10 (9M) [PATCH v3 3/4] dma-buf: Use struct dma_buf_map in dma_buf_vunmap() interfaces
  2020-09-25 · Thomas Zimmermann <tzimmermann@suse.de>

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.

• STALE65d [PATCH v2 05/10] dma-buf: heaps: Add debugfs support
  2026-01-22 · Thierry Reding <thierry.reding@kernel.org>