From: robin.murphy@arm•com (Robin Murphy)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v4 0/4] arm64: IOMMU-backed DMA mapping
Date: Thu, 16 Jul 2015 19:40:11 +0100 [thread overview]
Message-ID: <cover.1437070995.git.robin.murphy@arm.com> (raw)
Hi all,
Here's a quick repost to address feedback on v3, and a couple of other
tweaks. Changes this round:
- Fix the heinous dma_mask/coherency confusion, which also simplifies
some prototypes and parameter passing as a bonus.
- Reorder the iommu_map/unmap in alloc/free to prevent any potential
access the wrong side of clearing/freeing the pages.
- Made the unconditional clearing of allocations a bit more explicit.
- Made the default domain workaround more robust against the possibility
of an IOMMU driver giving back the same domain for multiple devices.
Robin.
v3: http://thread.gmane.org/gmane.linux.kernel.iommu/10133
Updated branch at: git://linux-arm.org/linux-rm iommu/dma
Robin Murphy (4):
iommu/iova: Avoid over-allocating when size-aligned
iommu: Implement common IOMMU ops for DMA mapping
arm64: Add IOMMU dma_ops
arm64: Hook up IOMMU dma_ops
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/dma-mapping.h | 15 +-
arch/arm64/mm/dma-mapping.c | 452 +++++++++++++++++++++++++++++
drivers/iommu/Kconfig | 7 +
drivers/iommu/Makefile | 1 +
drivers/iommu/dma-iommu.c | 538 +++++++++++++++++++++++++++++++++++
drivers/iommu/intel-iommu.c | 2 +
drivers/iommu/iova.c | 23 +-
include/linux/dma-iommu.h | 84 ++++++
include/linux/iommu.h | 1 +
10 files changed, 1099 insertions(+), 25 deletions(-)
create mode 100644 drivers/iommu/dma-iommu.c
create mode 100644 include/linux/dma-iommu.h
--
1.9.1
next reply other threads:[~2015-07-16 18:40 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-16 18:40 Robin Murphy [this message]
2015-07-16 18:40 ` [PATCH v4 1/4] iommu/iova: Avoid over-allocating when size-aligned Robin Murphy
2015-07-28 13:31 ` David Woodhouse
2015-07-16 18:40 ` [PATCH v4 2/4] iommu: Implement common IOMMU ops for DMA mapping Robin Murphy
2015-07-28 16:45 ` Catalin Marinas
2015-07-16 18:40 ` [PATCH v4 3/4] arm64: Add IOMMU dma_ops Robin Murphy
2015-07-28 17:27 ` Catalin Marinas
2015-07-16 18:40 ` [PATCH v4 4/4] arm64: Hook up " Robin Murphy
2015-07-28 17:30 ` Catalin Marinas
2015-07-20 15:26 ` [PATCH v4 0/4] arm64: IOMMU-backed DMA mapping Joerg Roedel
2015-07-20 17:23 ` Robin Murphy
2015-07-28 12:46 ` Will Deacon
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