linux/Documentation/userspace-api
Linus Torvalds 87768582a4 dma-mapping updates for Linux 7.0:
- added support for batched cache sync, what improves performance of
   dma_map/unmap_sg() operations on ARM64 architecture (Barry Song)
 
 - introduced DMA_ATTR_CC_SHARED attribute for explicitly shared memory
   used in confidential computing (Jiri Pirko)
 
 - refactored spaghetti-like code in drivers/of/of_reserved_mem.c and its
   clients (Marek Szyprowski, shared branch with device-tree updates to
   avoid merge conflicts)
 
 - prepared Contiguous Memory Allocator related code for making dma-buf
   drivers modularized (Maxime Ripard)
 
 - added support for benchmarking dma_map_sg() calls to tools/dma utility
   (Qinxin Xia)
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Merge tag 'dma-mapping-7.1-2026-04-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux

Pull dma-mapping updates from Marek Szyprowski:

 - added support for batched cache sync, what improves performance of
   dma_map/unmap_sg() operations on ARM64 architecture (Barry Song)

 - introduced DMA_ATTR_CC_SHARED attribute for explicitly shared memory
   used in confidential computing (Jiri Pirko)

 - refactored spaghetti-like code in drivers/of/of_reserved_mem.c and
   its clients (Marek Szyprowski, shared branch with device-tree updates
   to avoid merge conflicts)

 - prepared Contiguous Memory Allocator related code for making dma-buf
   drivers modularized (Maxime Ripard)

 - added support for benchmarking dma_map_sg() calls to tools/dma
   utility (Qinxin Xia)

* tag 'dma-mapping-7.1-2026-04-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: (24 commits)
  dma-buf: heaps: system: document system_cc_shared heap
  dma-buf: heaps: system: add system_cc_shared heap for explicitly shared memory
  dma-mapping: introduce DMA_ATTR_CC_SHARED for shared memory
  mm: cma: Export cma_alloc(), cma_release() and cma_get_name()
  dma: contiguous: Export dev_get_cma_area()
  dma: contiguous: Make dma_contiguous_default_area static
  dma: contiguous: Make dev_get_cma_area() a proper function
  dma: contiguous: Turn heap registration logic around
  of: reserved_mem: rework fdt_init_reserved_mem_node()
  of: reserved_mem: clarify fdt_scan_reserved_mem*() functions
  of: reserved_mem: rearrange code a bit
  of: reserved_mem: replace CMA quirks by generic methods
  of: reserved_mem: switch to ops based OF_DECLARE()
  of: reserved_mem: use -ENODEV instead of -ENOENT
  of: reserved_mem: remove fdt node from the structure
  dma-mapping: fix false kernel-doc comment marker
  dma-mapping: Support batch mode for dma_direct_{map,unmap}_sg
  dma-mapping: Separate DMA sync issuing and completion waiting
  arm64: Provide dcache_inval_poc_nosync helper
  arm64: Provide dcache_clean_poc_nosync helper
  ...
2026-04-17 11:12:42 -07:00
..
accelerators
ebpf
fwctl fwctl/bnxt_fwctl: Add documentation entries 2026-03-31 13:33:55 -03:00
gpio Documentation: use a source-read extension for the index link boilerplate 2026-01-23 11:59:34 -07:00
ioctl Char/Misc/IIO driver changes for 7.0-rc1 2026-02-17 09:11:04 -08:00
media media: uapi: Clarify MBUS color component order for serial buses 2026-03-24 11:58:02 +01:00
netlink docs: netlink: Couple of intro-specs documentation fixes 2025-11-06 14:50:59 -08:00
ELF.rst
check_exec.rst
dcdbas.rst
dma-buf-alloc-exchange.rst
dma-buf-heaps.rst dma-buf: heaps: system: document system_cc_shared heap 2026-04-10 14:20:01 +02:00
futex2.rst
index.rst Scheduler changes for v7.0: 2026-02-10 12:50:10 -08:00
iommufd.rst iommufd: Fix spelling errors in iommufd.rst 2025-08-18 11:15:06 -03:00
isapnp.rst
landlock.rst landlock: Document fallocate(2) as another truncation corner case 2026-04-07 18:51:11 +02:00
liveupdate.rst docs: add luo documentation 2025-11-27 14:24:39 -08:00
lsm.rst
mfd_noexec.rst
mseal.rst LoongArch: Enable ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS 2025-05-30 21:45:42 +08:00
no_new_privs.rst
ntsync.rst
perf_ring_buffer.rst
rseq.rst selftests/rseq: Add rseq slice histogram script 2026-01-22 11:11:20 +01:00
seccomp_filter.rst
spec_ctrl.rst Documentation/x86: Fix PR_SET_SPECULATION_CTRL error codes 2025-12-29 16:27:45 +01:00
sysfs-platform_profile.rst docs: Fix typos, improve grammar in Userspace API 2025-06-09 15:13:33 -06:00
tee.rst
unshare.rst
vduse.rst Documentation: Add documentation for VDUSE Address Space IDs 2026-01-28 15:32:18 -05:00