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Refactor dummy DMA ops

Robin Murphy linux-acpi linux-arm-kernel linux-iommu linux-pci lkml 1 version In review

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  1. v1 Latest2 patches 4 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/2dma-mapping: Factor out dummy DMA opsarch/arm64/include/asm/dma-mapping.h arch/arm64/mm/dma-mapping.c include/linux/dma-mapping.h +1 more+56 -950 replies
2/2ACPI / scan: Refactor _CCA enforcementdrivers/acpi/scan.c drivers/base/platform.c drivers/pci/pci-driver.c+7 -42 replies

Reviews trailers per patch

1 of 2 patches has a Reviewed-by or Acked-by.

PatchRafael J. WysockiBjorn Helgaas
1/2
2/2R-b A-b

Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.

Read the v1 thread

Cover letter [PATCH 0/2] Refactor dummy DMA ops

Hi all,

Tangential to Christoph's RFC for mitigating indirect call overhead in common DMA mapping scenarios[1], this is a little reshuffle to prevent the CONFIG_ACPI_CCA_REQUIRED case from getting in the way. This would best go via the dma-mapping tree, so reviews and acks welcome.

Robin.

[1] https://lore.kernel.org/lkml/[email protected]/

Robin Murphy (2):
dma-mapping: Factor out dummy DMA ops
ACPI / scan: Refactor _CCA enforcement

 arch/arm64/include/asm/dma-mapping.h |  4 +-
 arch/arm64/mm/dma-mapping.c          | 92 ----------------------------
 drivers/acpi/scan.c                  |  5 ++
 drivers/base/platform.c              |  3 +-
 drivers/pci/pci-driver.c             |  3 +-
 include/linux/dma-mapping.h          |  1 +
 kernel/dma/mapping.c                 | 54 ++++++++++++++++
 7 files changed, 63 insertions(+), 99 deletions(-)
Signature · 1 line
2.19.1.dirty

Read the cover letter in its thread