linux/drivers/iommu
Jason Gunthorpe b2f4c0fcf0 iommu/arm-smmu-v3: Make arm_smmu_alloc_cd_ptr()
Only the attach callers can perform an allocation for the CD table entry,
the other callers must not do so, they do not have the correct locking and
they cannot sleep. Split up the functions so this is clear.

arm_smmu_get_cd_ptr() will return pointer to a CD table entry without
doing any kind of allocation.

arm_smmu_alloc_cd_ptr() will allocate the table and any required
leaf.

A following patch will add lockdep assertions to arm_smmu_alloc_cd_ptr()
once the restructuring is completed and arm_smmu_alloc_cd_ptr() is never
called in the wrong context.

Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/5-v9-5040dc602008+177d7-smmuv3_newapi_p2_jgg@nvidia.com
Signed-off-by: Will Deacon <will@kernel.org>
2024-05-01 15:33:52 +01:00
..
amd IOMMU Updates for Linux v6.9 2024-03-13 09:15:30 -07:00
arm iommu/arm-smmu-v3: Make arm_smmu_alloc_cd_ptr() 2024-05-01 15:33:52 +01:00
intel Kbuild updates for v6.9 2024-03-21 14:41:00 -07:00
iommufd iommufd/selftest: Don't check map/unmap pairing with HUGE_PAGES 2024-02-26 16:59:12 -04:00
apple-dart.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00
dma-iommu.c dma-mapping fixes for Linux 6.9 2024-03-24 10:45:31 -07:00
dma-iommu.h iommu: Optimise PCI SAC address trick 2023-07-14 16:14:17 +02:00
exynos-iommu.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00
fsl_pamu_domain.c iommu/fsl_pamu: Implement a PLATFORM domain 2023-09-25 11:40:54 +02:00
fsl_pamu_domain.h
fsl_pamu.c iommu/fsl: fix all kernel-doc warnings in fsl_pamu.c 2023-03-22 14:50:15 +01:00
fsl_pamu.h
hyperv-iommu.c x86/vector: Rename send_cleanup_vector() to vector_schedule_cleanup() 2023-08-06 14:15:09 +02:00
io-pgfault.c iommu: Make iommu_report_device_fault() return void 2024-02-16 15:19:37 +01:00
io-pgtable-arm-v7s.c iommu/io-pgtable-arm-v7s: Remove map/unmap 2022-11-19 10:44:15 +01:00
io-pgtable-arm.c iommu: Extend LPAE page table format to support custom allocators 2023-11-27 11:10:12 +01:00
io-pgtable-arm.h
io-pgtable-dart.c iommu/io-pgtable-dart: Add DART PTE support for t6000 2022-09-26 13:49:40 +02:00
io-pgtable.c iommu: Allow passing custom allocators to pgtable drivers 2023-11-27 11:10:12 +01:00
iommu-debugfs.c
iommu-priv.h iommu: constify pointer to bus_type 2024-03-01 13:46:57 +01:00
iommu-sva.c Merge branches 'arm/mediatek', 'arm/renesas', 'arm/smmu', 'x86/vt-d', 'x86/amd' and 'core' into next 2024-03-08 09:05:59 +01:00
iommu-sysfs.c iommu: Do not export iommu_device_link/unlink() 2023-07-14 16:14:15 +02:00
iommu-traces.c iommu: Remove detach_dev callback 2023-01-13 16:39:18 +01:00
iommu.c iommu: Validate the PASID in iommu_attach_device_pasid() 2024-03-28 06:38:40 +01:00
iova.c iommu/iova: use named kmem_cache for iova magazines 2024-02-09 11:45:47 +01:00
ipmmu-vmsa.c Merge branches 'arm/mediatek', 'arm/renesas', 'arm/smmu', 'x86/vt-d', 'x86/amd' and 'core' into next 2024-03-08 09:05:59 +01:00
irq_remapping.c iommu: Fix compilation without CONFIG_IOMMU_INTEL 2024-03-08 09:03:18 +01:00
irq_remapping.h
Kconfig iommu/arm-smmu-qcom: Don't build debug features as a kernel module 2024-05-01 15:33:51 +01:00
Makefile iommu: Separate SVA and IOPF 2024-02-16 15:19:29 +01:00
msm_iommu_hw-8xxx.h
msm_iommu.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00
msm_iommu.h
mtk_iommu_v1.c Merge branches 'arm/mediatek', 'arm/renesas', 'arm/smmu', 'x86/vt-d', 'x86/amd' and 'core' into next 2024-03-08 09:05:59 +01:00
mtk_iommu.c Merge branches 'arm/mediatek', 'arm/renesas', 'arm/smmu', 'x86/vt-d', 'x86/amd' and 'core' into next 2024-03-08 09:05:59 +01:00
of_iommu.c iommu: re-use local fwnode variable in iommu_ops_from_fwnode() 2024-03-01 13:47:01 +01:00
omap-iommu-debug.c iommu/omap: Fix buffer overflow in debugfs 2022-09-07 10:42:28 +02:00
omap-iommu.c iommu: Mark dev_iommu_priv_set() with a lockdep 2023-12-12 10:18:49 +01:00
omap-iommu.h iommu/omap: Convert to generic_single_device_group() 2023-09-25 11:52:08 +02:00
omap-iopgtable.h
rockchip-iommu.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00
s390-iommu.c iommu/dma: Allow a single FQ in addition to per-CPU FQs 2023-10-02 08:43:03 +02:00
sprd-iommu.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00
sun50i-iommu.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00
tegra-smmu.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00
virtio-iommu.c iommu: constify of_phandle_args in xlate 2024-03-01 13:46:57 +01:00