* [GIT PULL] dma-mapping update for Linux 6.16
[not found] <CGME20250526121111eucas1p277b74b79fe4ae4323fc687a06039044d@eucas1p2.samsung.com>
@ 2025-05-26 12:11 ` Marek Szyprowski
2025-05-28 4:18 ` pr-tracker-bot
0 siblings, 1 reply; 2+ messages in thread
From: Marek Szyprowski @ 2025-05-26 12:11 UTC (permalink / raw)
To: Linus Torvalds
Cc: linux-kernel, iommu, Marek Szyprowski, Leon Romanovsky,
Jens Axboe, Christoph Hellwig, Keith Busch, Jake Edge,
Jonathan Corbet, Jason Gunthorpe, Zhu Yanjun, Robin Murphy,
Joerg Roedel, Will Deacon, Sagi Grimberg, Bjorn Helgaas,
Logan Gunthorpe, Yishai Hadas, Shameer Kolothum, Kevin Tian,
Alex Williamson, Jérôme Glisse, Andrew Morton,
linux-doc, linux-block, linux-rdma, linux-nvme, linux-pci, kvm,
linux-mm, Niklas Schnelle, Chuck Lever, Luis Chamberlain,
Matthew Wilcox, Dan Williams, Kanchan Joshi, Chaitanya Kulkarni
The following changes since commit 0af2f6be1b4281385b618cb86ad946eded089ac8:
Linux 6.15-rc1 (2025-04-06 13:11:33 -0700)
are available in the Git repository at:
https://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux.git tags/dma-mapping-6.16-2025-05-26
for you to fetch changes up to 3ee7d9496342246f4353716f6bbf64c945ff6e2d:
docs: core-api: document the IOVA-based API (2025-05-06 08:36:54 +0200)
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dma-mapping updates for Linux 6.16:
- new two step DMA mapping API, which is is a first step to a long path
to provide alternatives to scatterlist and to remove hacks, abuses and
design mistakes related to scatterlists; this new approach optimizes
some calls to DMA-IOMMU layer and cache maintenance by batching them,
reduces memory usage as it is no need to store mapped DMA addresses to
unmap them, and reduces some function call overhead; it is a combination
effort of many people, lead and developed by Christoph Hellwig and Leon
Romanovsky
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Christoph Hellwig (6):
PCI/P2PDMA: Refactor the p2pdma mapping helpers
dma-mapping: move the PCI P2PDMA mapping helpers to pci-p2pdma.h
iommu: generalize the batched sync after map interface
iommu/dma: Factor out a iommu_dma_map_swiotlb helper
dma-mapping: add a dma_need_unmap helper
docs: core-api: document the IOVA-based API
Leon Romanovsky (3):
iommu: add kernel-doc for iommu_unmap_fast
dma-mapping: Provide an interface to allow allocate IOVA
dma-mapping: Implement link/unlink ranges API
Documentation/core-api/dma-api.rst | 71 ++++++
drivers/iommu/dma-iommu.c | 482 ++++++++++++++++++++++++++++++++-----
drivers/iommu/iommu.c | 84 ++++---
drivers/pci/p2pdma.c | 38 +--
include/linux/dma-map-ops.h | 54 -----
include/linux/dma-mapping.h | 85 +++++++
include/linux/iommu.h | 4 +
include/linux/pci-p2pdma.h | 85 +++++++
kernel/dma/direct.c | 44 ++--
kernel/dma/mapping.c | 18 ++
10 files changed, 764 insertions(+), 201 deletions(-)
----------------------------------------------------------------
Thanks!
Best regards
Marek Szyprowski, PhD
Samsung R&D Institute Poland
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