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628bf55b62
linux/drivers/iommu
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Robin Murphy 628bf55b62 iommu/arm-smmu: Force identity domains for legacy binding 
When using the legacy "mmu-masters" DT binding, we reject DMA domains
since we have no guarantee of driver probe order and thus can't rely on
client drivers getting the correct DMA ops. However, we can do better
than fall back to the old no-default-domain behaviour now, by forcing an
identity default domain instead. This also means that detaching from a
VFIO domain can actually work - that looks to have been broken for over
6 years, so clearly isn't something that legacy binding users care
about, but we may as well make the driver code make sense anyway.

Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/9805e4c492cb972bdcdd57999d2d001a2d8b5aab.1652171938.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2022-05-10 12:01:31 +01:00
..
amd Merge branches 'arm/mediatek', 'arm/msm', 'arm/renesas', 'arm/rockchip', 'arm/smmu', 'x86/vt-d' and 'x86/amd' into next 2022-03-08 12:21:31 +01:00
arm iommu/arm-smmu: Force identity domains for legacy binding 2022-05-10 12:01:31 +01:00
intel IOMMU Updates for Linux v5.18 2022-03-24 19:48:57 -07:00
apple-dart.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
dma-iommu.c dma-mapping updates for Linux 5.18 2022-03-29 08:50:14 -07:00
exynos-iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
fsl_pamu_domain.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
fsl_pamu_domain.h
fsl_pamu.c iommu/fsl_pamu: hardcode the window address and size in pamu_config_ppaace 2021-04-07 10:56:52 +02:00
fsl_pamu.h iommu/fsl_pamu: hardcode the window address and size in pamu_config_ppaace 2021-04-07 10:56:52 +02:00
hyperv-iommu.c
io-pgfault.c
io-pgtable-arm-v7s.c iommu/io-pgtable-arm-v7s: Add error handle for page table allocation failure 2021-12-14 14:45:35 +00:00
io-pgtable-arm.c iommu/io-pgtable-arm: Fix table descriptor paddr formatting 2021-12-06 13:03:01 +01:00
io-pgtable-arm.h
io-pgtable.c iommu/io-pgtable: Add DART pagetable format 2021-08-12 13:15:02 +02:00
ioasid.c iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit 2022-02-15 11:31:35 +01:00
iommu-debugfs.c
iommu-sva-lib.c iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit 2022-02-15 11:31:35 +01:00
iommu-sva-lib.h iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit 2022-02-15 11:31:35 +01:00
iommu-sysfs.c
iommu-traces.c
iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
iova.c iommu/iova: Improve 32-bit free space estimate 2022-03-04 10:40:40 +01:00
ipmmu-vmsa.c Merge branches 'arm/mediatek', 'arm/msm', 'arm/renesas', 'arm/rockchip', 'arm/smmu', 'x86/vt-d' and 'x86/amd' into next 2022-03-08 12:21:31 +01:00
irq_remapping.c
irq_remapping.h
Kconfig iommu/sva: Rename CONFIG_IOMMU_SVA_LIB to CONFIG_IOMMU_SVA 2022-02-14 19:17:46 +01:00
Makefile iommu/sva: Rename CONFIG_IOMMU_SVA_LIB to CONFIG_IOMMU_SVA 2022-02-14 19:17:46 +01:00
msm_iommu_hw-8xxx.h
msm_iommu.c Merge branches 'arm/mediatek', 'arm/msm', 'arm/renesas', 'arm/rockchip', 'arm/smmu', 'x86/vt-d' and 'x86/amd' into next 2022-03-08 12:21:31 +01:00
msm_iommu.h
mtk_iommu_v1.c Driver core changes for 5.18-rc1 2022-03-28 12:41:28 -07:00
mtk_iommu.c Driver core changes for 5.18-rc1 2022-03-28 12:41:28 -07:00
mtk_iommu.h iommu/mediatek: Make use of the helper component_compare/release_of 2022-02-25 12:16:13 +01:00
of_iommu.c iommu: Remove unused of_get_dma_window() 2021-06-08 14:15:46 +02:00
omap-iommu-debug.c
omap-iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
omap-iommu.h
omap-iopgtable.h
rockchip-iommu.c Merge branches 'arm/mediatek', 'arm/msm', 'arm/renesas', 'arm/rockchip', 'arm/smmu', 'x86/vt-d' and 'x86/amd' into next 2022-03-08 12:21:31 +01:00
s390-iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
sprd-iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
sun50i-iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
tegra-gart.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
tegra-smmu.c Merge branches 'arm/mediatek', 'arm/msm', 'arm/renesas', 'arm/rockchip', 'arm/smmu', 'x86/vt-d' and 'x86/amd' into next 2022-03-08 12:21:31 +01:00
virtio-iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00