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Will Deacon dea9c75f3f arm64: dma-mapping: Only swizzle DMA ops for IOMMU_DOMAIN_DMA 
[ Upstream commit 4a8d8a14c0 ]

The arm64 DMA-mapping implementation sets the DMA ops to the IOMMU DMA
ops if we detect that an IOMMU is present for the master and the DMA
ranges are valid.

In the case when the IOMMU domain for the device is not of type
IOMMU_DOMAIN_DMA, then we have no business swizzling the ops, since
we're not in control of the underlying address space. This patch leaves
the DMA ops alone for masters attached to non-DMA IOMMU domains.

Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2017-11-15 15:53:13 +01:00
..
boot ARM64: dts: marvell: armada-37xx: Fix GIC maintenance interrupt 2017-09-13 14:13:36 -07:00
configs ZTE arm64 defconfig updates for 4.9: 2016-09-19 22:35:21 +02:00
crypto crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes 2017-02-09 08:08:26 +01:00
include mm: revert x86_64 and arm64 ELF_ET_DYN_BASE base changes 2017-08-24 17:12:20 -07:00
kernel arm64: ensure __dump_instr() checks addr_limit 2017-11-08 10:08:32 +01:00
kvm arm/arm64: kvm: Disable branch profiling in HYP code 2017-11-08 10:08:32 +01:00
lib Merge branch 'work.uaccess' into for-linus 2016-10-14 20:42:44 -04:00
mm arm64: dma-mapping: Only swizzle DMA ops for IOMMU_DOMAIN_DMA 2017-11-15 15:53:13 +01:00
net bpf, arm64: fix faulty emission of map access in tail calls 2017-06-07 12:07:43 +02:00
xen arm/xen: add support for vm_assist hypercall 2016-07-06 10:42:14 +01:00
Kconfig irqchip/gicv3-its: Add workaround for QDF2400 ITS erratum 0065 2017-03-22 12:43:39 +01:00
Kconfig.debug arm64: always enable DEBUG_RODATA and remove the Kconfig option 2016-08-26 10:13:41 +01:00
Kconfig.platforms arm64: uniphier: select ARCH_HAS_RESET_CONTROLLER 2016-10-22 18:25:52 +09:00
Makefile arm64: kernel: force ET_DYN ELF type for CONFIG_RELOCATABLE=y 2016-10-20 11:37:25 +01:00