linux-kernel - [GIT PULL] dma-mapping updates for Linux 6.19

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Message-Id: <20251205142211.1639096-1-m.szyprowski@samsung.com>
Date: Fri,  5 Dec 2025 15:22:11 +0100
From: Marek Szyprowski <m.szyprowski@...sung.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, iommu@...ts.linux.dev, Marek Szyprowski
	<m.szyprowski@...sung.com>, Christoph Hellwig <hch@....de>, Robin Murphy
	<robin.murphy@....com>, Leon Romanovsky <leon@...nel.org>, Jason Gunthorpe
	<jgg@...dia.com>, Qinxin Xia <xiaqinxin@...wei.com>
Subject: [GIT PULL] dma-mapping updates for Linux 6.19

The following changes since commit 3a8660878839faadb4f1a6dd72c3179c1df56787:

  Linux 6.18-rc1 (2025-10-12 13:42:36 -0700)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux.git tags/dma-mapping-6.19-2025-12-05

for you to fetch changes up to 131971f67e258170c678fe572fda95f8cef88e66:

  dma-mapping: remove unused map_page callback (2025-10-29 10:27:31 +0100)

----------------------------------------------------------------
dma-mapping updates for Linux 6.19:

- next part of DMA mapping API refactoring to physical addresses as the primary
interface instead of page+offset parameters; this time dma_map_ops callbacks
are converted to physical addresses, what in turn results also in some
simplification of architecture specific code (Leon Romanovsky and Jason
Gunthorpe)
- clarify that dma_map_benchmark is not a kernel self-test, but standalone
tool (Qinxin Xia)

----------------------------------------------------------------
Leon Romanovsky (14):
      dma-mapping: prepare dma_map_ops to conversion to physical address
      dma-mapping: convert dummy ops to physical address mapping
      ARM: dma-mapping: Reduce struct page exposure in arch_sync_dma*()
      ARM: dma-mapping: Switch to physical address mapping callbacks
      xen: swiotlb: Switch to physical address mapping callbacks
      dma-mapping: remove unused mapping resource callbacks
      alpha: Convert mapping routine to rely on physical address
      MIPS/jazzdma: Provide physical address directly
      parisc: Convert DMA map_page to map_phys interface
      powerpc: Convert to physical address DMA mapping
      sparc: Use physical address DMA mapping
      x86: Use physical address for DMA mapping
      xen: swiotlb: Convert mapping routine to rely on physical address
      dma-mapping: remove unused map_page callback

Qinxin Xia (2):
      dma-mapping: benchmark: Restore padding to ensure uABI remained consistent
      tools/dma: move dma_map_benchmark from selftests to tools/dma

 arch/alpha/kernel/pci_iommu.c                      |  48 +++---
 arch/arm/mm/dma-mapping.c                          | 180 ++++++---------------
 arch/mips/jazz/jazzdma.c                           |  20 ++-
 arch/powerpc/include/asm/iommu.h                   |   8 +-
 arch/powerpc/kernel/dma-iommu.c                    |  22 ++-
 arch/powerpc/kernel/iommu.c                        |  14 +-
 arch/powerpc/platforms/ps3/system-bus.c            |  33 ++--
 arch/powerpc/platforms/pseries/ibmebus.c           |  15 +-
 arch/powerpc/platforms/pseries/vio.c               |  21 +--
 arch/sparc/kernel/iommu.c                          |  30 ++--
 arch/sparc/kernel/pci_sun4v.c                      |  31 ++--
 arch/sparc/mm/io-unit.c                            |  38 ++---
 arch/sparc/mm/iommu.c                              |  46 +++---
 arch/x86/kernel/amd_gart_64.c                      |  19 +--
 drivers/parisc/ccio-dma.c                          |  54 ++++---
 drivers/parisc/iommu-helpers.h                     |  10 +-
 drivers/parisc/sba_iommu.c                         |  54 +++----
 drivers/xen/grant-dma-ops.c                        |  20 ++-
 drivers/xen/swiotlb-xen.c                          |  63 ++++----
 include/linux/dma-map-ops.h                        |  14 +-
 include/{ => uapi}/linux/map_benchmark.h           |  14 +-
 kernel/dma/dummy.c                                 |  13 +-
 kernel/dma/map_benchmark.c                         |   2 +-
 kernel/dma/mapping.c                               |  26 +--
 kernel/dma/ops_helpers.c                           |  12 +-
 tools/Makefile                                     |  13 +-
 tools/dma/.gitignore                               |   3 +
 tools/dma/Makefile                                 |  55 +++++++
 tools/{testing/selftests => }/dma/config           |   0
 .../selftests => }/dma/dma_map_benchmark.c         |   1 -
 tools/testing/selftests/dma/Makefile               |   7 -
 31 files changed, 436 insertions(+), 450 deletions(-)
 rename include/{ => uapi}/linux/map_benchmark.h (76%)
 create mode 100644 tools/dma/.gitignore
 create mode 100644 tools/dma/Makefile
 rename tools/{testing/selftests => }/dma/config (100%)
 rename tools/{testing/selftests => }/dma/dma_map_benchmark.c (99%)
 delete mode 100644 tools/testing/selftests/dma/Makefile
----------------------------------------------------------------

Thanks!

Best regards
Marek Szyprowski, PhD
Samsung R&D Institute Poland