linux-kernel - [PATCH v4 0/2] DMA IOMMU static calls

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Message-ID: <cover.1721818168.git.leon@kernel.org>
Date: Wed, 24 Jul 2024 21:04:47 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Christoph Hellwig <hch@....de>,
	Robin Murphy <robin.murphy@....com>,
	Joerg Roedel <joro@...tes.org>,
	Will Deacon <will@...nel.org>,
	Marek Szyprowski <m.szyprowski@...sung.com>
Cc: Leon Romanovsky <leonro@...dia.com>,
	Easwar Hariharan <eahariha@...ux.microsoft.com>,
	linux-kernel@...r.kernel.org,
	iommu@...ts.linux.dev,
	Jason Gunthorpe <jgg@...dia.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH v4 0/2] DMA IOMMU static calls

Changelog:
v4:
 * Added extra hidden config option to build ops_helper.c without CONFIG_DMA_OPS
 * Tried to keep dma-iommu.c function declaration style.
 * Removed "select DMA_OPS" from intel iommu kconfig. It is not needed.
v3: https://lore.kernel.org/all/cover.1721547902.git.leon@kernel.org/
 * Changed coding style as Christoph asked
 * Moved debug WARN_ON check to dma_set_mask.
 * Slightly updated commit messages
 * Added Greg to the CC list
v2: https://lore.kernel.org/all/cover.1721219730.git.leon@kernel.org/
 * Ditched dma_ops flag in favor of field in struct device (suggested by
   Christoph)
 * Removed CONFIG_DMA_OPS select from dma-iommu.c Kconfig
 * Removed flags field which exist only in default IOMMU
v1: https://lore.kernel.org/all/cover.1721041611.git.leon@kernel.org/
 * Dropped extra layer and called directly to iommu_dma_* functions
 * Added unmap_page and unmap_sg to dummy ops
 * Converted all dma-mapping calls to use iommu directly
 * Updated commit messages
v0: https://lore.kernel.org/all/98d1821780028434ff55b5d2f1feea287409fbc4.1720693745.git.leon@kernel.org/

Leon Romanovsky (2):
  dma: call unconditionally to unmap_page and unmap_sg callbacks
  dma: add IOMMU static calls with clear default ops

 MAINTAINERS                 |   1 +
 drivers/iommu/Kconfig       |   2 +-
 drivers/iommu/dma-iommu.c   | 121 ++++++++++----------------
 drivers/iommu/intel/Kconfig |   1 -
 include/linux/device.h      |   5 ++
 include/linux/dma-map-ops.h |  39 +++++----
 include/linux/iommu-dma.h   | 169 ++++++++++++++++++++++++++++++++++++
 kernel/dma/Kconfig          |   6 ++
 kernel/dma/Makefile         |   2 +-
 kernel/dma/dummy.c          |  21 +++++
 kernel/dma/mapping.c        |  90 ++++++++++++++++---
 11 files changed, 348 insertions(+), 109 deletions(-)
 create mode 100644 include/linux/iommu-dma.h

-- 
2.45.2