Russell King 0b42c7c113 iommu/tegra-smmu: Fix page table lookup in unmap/iova_to_phys methods ... Fix the page table lookup in the unmap and iova_to_phys methods. Neither of these methods should allocate a page table; a missing page table should be treated the same as no mapping present. More importantly, using as_get_pte() for an IOVA corresponding with a non-present page table entry increments the use-count for the page table, on the assumption that the caller of as_get_pte() is going to setup a mapping. This is an incorrect assumption. Fix both of these bugs by providing a separate helper which only looks up the page table, but never allocates it. This is akin to pte_offset() for CPU page tables. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thierry Reding <treding@nvidia.com>		2015-08-13 16:06:39 +02:00
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amd_iommu_init.c	IOMMU Updates for Linux v4.2	2015-06-23 18:27:19 -07:00
amd_iommu_proto.h	IOMMU Updates for Linux v4.2	2015-06-23 18:27:19 -07:00
amd_iommu_types.h	IOMMU Updates for Linux v4.2	2015-06-23 18:27:19 -07:00
amd_iommu_v2.c	iommu/amd: Fix bug in put_pasid_state_wait	2015-05-04 13:20:22 +02:00
amd_iommu.c	IOMMU Fixes for Linux v4.2-rc0	2015-07-01 14:44:22 -07:00
arm-smmu-v3.c	iommu/arm-smmu: Delete an unnecessary check before the function call "free_io_pgtable_ops"	2015-06-29 21:57:32 +02:00
arm-smmu.c	iommu/arm-smmu: Fix broken ATOS check	2015-06-29 21:57:32 +02:00
dmar.c	IOMMU Updates for Linux v4.2	2015-06-23 18:27:19 -07:00
exynos-iommu.c	iommu/exynos: Add callback for initializing devices from device tree	2015-05-29 10:50:08 +02:00
fsl_pamu_domain.c	iommu/fsl: Make use of domain_alloc and domain_free	2015-03-31 15:32:14 +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	iommu/fsl: Various cleanups	2015-02-03 18:47:18 +01:00
fsl_pamu.h	iommu/fsl: Various cleanups	2015-02-03 18:47:18 +01:00
intel_irq_remapping.c	IOMMU Updates for Linux v4.2	2015-06-23 18:27:19 -07:00
intel-iommu.c	iommu/vt-d: Enable Translation only if it was previously disabled	2015-06-16 10:59:35 +02:00
io-pgtable-arm.c	iommu/io-pgtable-arm: avoid speculative walks through TTBR1	2015-03-27 13:39:36 +00:00
io-pgtable.c	iommu: add ARM LPAE page table allocator	2015-01-19 14:46:44 +00:00
io-pgtable.h	iommu: io-pgtable-arm: add non-secure quirk	2015-01-19 14:46:45 +00:00
iommu-sysfs.c
iommu-traces.c
iommu.c	iommu: Ignore -ENODEV errors from add_device call-back	2015-06-29 21:57:19 +02:00
iova.c	iommu: Fix checkpatch warnings for Missing a blank line after declarations	2015-05-05 17:49:34 +02:00
ipmmu-vmsa.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
irq_remapping.c	iommu, x86: Provide irq_remapping_cap() interface	2015-06-12 11:33:52 +02:00
irq_remapping.h	iommu, x86: Setup Posted-Interrupts capability for Intel iommu	2015-06-12 11:33:52 +02:00
Kconfig	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2015-06-26 13:18:51 -07:00
Makefile	iommu/arm-smmu: Add initial driver support for ARM SMMUv3 devices	2015-05-29 11:12:01 +02:00
msm_iommu_dev.c
msm_iommu_hw-8xxx.h
msm_iommu.c	iommu/msm: Make use of domain_alloc and domain_free	2015-03-31 15:32:12 +02:00
msm_iommu.h
of_iommu.c	of: iommu: Add ptr to OF node arg to of_iommu_configure()	2015-03-03 14:42:55 -06:00
omap-iommu-debug.c
omap-iommu.c	iommu/omap: Make use of domain_alloc and domain_free	2015-03-31 15:32:02 +02:00
omap-iommu.h
omap-iopgtable.h
rockchip-iommu.c	Merge branches 'arm/rockchip', 'arm/exynos', 'arm/smmu', 'x86/vt-d', 'x86/amd', 'default-domains' and 'core' into next	2015-06-19 17:17:47 +02:00
shmobile-iommu.c	iommu/shmobile: Make use of domain_alloc and domain_free	2015-03-31 15:32:13 +02:00
shmobile-ipmmu.c
shmobile-ipmmu.h
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: Fix page table lookup in unmap/iova_to_phys methods	2015-08-13 16:06:39 +02:00