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fba4f8e5c4
linux/drivers/iommu
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Robin Murphy fba4f8e5c4 iommu/arm-smmu: Work around ARM DMA configuration 
The 32-bit ARM DMA configuration code predates the IOMMU core's default
domain functionality, and instead relies on allocating its own domains
and attaching any devices using the generic IOMMU binding to them.
Unfortunately, it does this relatively early on in the creation of the
device, before we've seen our add_device callback, which leads us to
attempt to operate on a half-configured master.

To avoid a crash, check for this situation on attach, but refuse to
play, as there's nothing we can do. This at least allows VFIO to keep
working for people who update their 32-bit DTs to the generic binding,
albeit with a few (innocuous) warnings from the DMA layer on boot.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-11-08 14:46:41 +01:00
..
amd_iommu_init.c iommu/amd: Use standard bitmap operation to set bitmap 2016-09-19 15:49:01 +02:00
amd_iommu_proto.h Merge branch 'x86/amd-avic' into x86/amd 2016-09-05 12:43:16 +02:00
amd_iommu_types.h KVM updates for v4.9-rc1 2016-10-06 10:49:01 -07:00
amd_iommu_v2.c IOMMU Updates for Linux v4.8 2016-08-01 07:25:10 -04:00
amd_iommu.c IOMMU Updates for Linux v4.9 2016-10-11 12:52:41 -07:00
arm-smmu-v3.c iommu/arm-smmu: Set domain geometry 2016-09-16 09:34:22 +01:00
arm-smmu.c iommu/arm-smmu: Work around ARM DMA configuration 2016-11-08 14:46:41 +01:00
dma-iommu.c iommu/dma: Avoid PCI host bridge windows 2016-09-16 09:34:22 +01:00
dmar.c IOMMU Updates for Linux v4.8 2016-08-01 07:25:10 -04:00
exynos-iommu.c iommu/exynos: Fix error handling for of_platform_device_create 2016-08-09 17:27:48 +02:00
fsl_pamu_domain.c iommu/fsl: Convert to device_group call-back 2015-10-22 00:00:49 +02:00
fsl_pamu_domain.h iommu/fsl: Make use of domain_alloc and domain_free 2015-03-31 15:32:14 +02:00
fsl_pamu.c powerpc/fsl: Move fsl_guts.h out of arch/powerpc 2015-10-21 18:05:50 -05:00
fsl_pamu.h iommu/fsl: Various cleanups 2015-02-03 18:47:18 +01:00
intel_irq_remapping.c SVM fixes for Linux 4.5 2016-02-16 08:04:06 -08:00
intel-iommu.c iommu/vt-d: Make sure RMRRs are mapped before domain goes public 2016-09-05 13:00:28 +02:00
intel-svm.c mm: do not pass mm_struct into handle_mm_fault 2016-07-26 16:19:19 -07:00
io-pgtable-arm-v7s.c iommu/io-pgtable-arm: Check for v7s-incapable systems 2016-09-16 09:34:23 +01:00
io-pgtable-arm.c iommu/io-pgtable-arm: Fix iova_to_phys for block entries 2016-07-01 14:04:37 +01:00
io-pgtable.c iommu/io-pgtable: Fix a brace coding style issue. 2016-04-05 15:34:29 +02:00
io-pgtable.h iommu/io-pgtable: Add MTK 4GB mode in Short-descriptor 2016-04-05 15:39:37 +02:00
iommu-sysfs.c iommu: Fix compile error in iommu-sysfs.c 2014-07-07 12:01:21 +02:00
iommu-traces.c
iommu.c iommu: Introduce iommu_fwspec 2016-09-16 09:34:15 +01:00
iova.c iommu/iova: Disable preemption around use of this_cpu_ptr() 2016-06-27 13:07:45 +02:00
ipmmu-vmsa.c iommu/ipmmu-vmsa: Fix wrong error handle of ipmmu_add_device 2016-09-05 12:53:58 +02:00
irq_remapping.c x86/cpufeature: Replace cpu_has_apic with boot_cpu_has() usage 2016-04-13 11:37:41 +02:00
irq_remapping.h iommu, x86: Setup Posted-Interrupts capability for Intel iommu 2015-06-12 11:33:52 +02:00
Kconfig iommu/arm-smmu: Support non-PCI devices with SMMUv3 2016-09-16 09:34:17 +01:00
Makefile Merge branches 'x86/amd', 'x86/vt-d', 'arm/exynos', 'arm/mediatek', 'arm/msm', 'arm/rockchip', 'arm/smmu' and 'core' into next 2016-07-26 16:02:37 +02:00
msm_iommu_hw-8xxx.h
msm_iommu.c iommu/msm: use generic ARMV7S short descriptor pagetable ops 2016-06-21 13:57:13 +02:00
msm_iommu.h iommu/msm: Add DT adaptation 2016-06-21 13:56:00 +02:00
mtk_iommu_v1.c iommu/mediatek: Make mtk_iommu_pm_ops static 2016-06-21 11:54:06 +02:00
mtk_iommu.c iommu/mediatek: move the common struct into header file 2016-06-21 11:36:19 +02:00
mtk_iommu.h iommu/mediatek: Mark static functions in headers inline 2016-08-09 15:46:46 +02:00
of_iommu.c iommu: Introduce iommu_fwspec 2016-09-16 09:34:15 +01:00
omap-iommu-debug.c iommu/omap: Align code with open parenthesis 2016-04-05 17:53:20 +02:00
omap-iommu.c iommu/omap: Use WARN_ON for page table alignment check 2016-04-05 17:53:20 +02:00
omap-iommu.h iommu/omap: Add support for configuring dsp iommus on DRA7xx 2015-10-14 14:35:47 +02:00
omap-iopgtable.h iommu/omap: Use BIT(x) macros in omap-iopgtable.h 2015-08-03 16:04:42 +02:00
rockchip-iommu.c iommu/rockchip: Prepare to support generic DMA mapping 2016-06-27 14:50:08 +02:00
s390-iommu.c iommu/s390: simplify registration of I/O address translation parameters 2016-09-22 13:42:28 +02:00
tegra-gart.c Merge branches 'iommu/fixes', 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/tegra' and 'core' into next 2015-04-02 13:33:19 +02:00
tegra-smmu.c iommu/tegra-smmu: Parameterize number of TLB lines 2015-08-13 17:05:28 +02:00