diff options
| author | Joao Martins <joao.m.martins@oracle.com> | 2024-07-03 13:16:03 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-07-03 17:45:47 +0300 |
| commit | eb054d67b21a53f6ccf3af49a62fb99397b48fc2 (patch) | |
| tree | 494814db7fe62ae87cc2d5fdc7d4e773926f0880 /include | |
| parent | 4fe88fd8b4aecb7f9680bf898811db76b94095a9 (diff) | |
| download | linux-eb054d67b21a53f6ccf3af49a62fb99397b48fc2.tar.xz | |
iommu/arm-smmu-v3: Add support for dirty tracking in domain alloc
This provides all the infrastructure to enable dirty tracking if the
hardware has the capability and domain alloc request for it.
Also, add a device_iommu_capable() check in iommufd core for
IOMMU_CAP_DIRTY_TRACKING before we request a user domain with dirty
tracking support.
Please note, we still report no support for IOMMU_CAP_DIRTY_TRACKING
as it will finally be enabled in a subsequent patch.
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Link: https://lore.kernel.org/r/20240703101604.2576-5-shameerali.kolothum.thodi@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/io-pgtable.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/io-pgtable.h b/include/linux/io-pgtable.h index 86cf1f7ae389..f9a81761bfce 100644 --- a/include/linux/io-pgtable.h +++ b/include/linux/io-pgtable.h @@ -85,6 +85,8 @@ struct io_pgtable_cfg { * * IO_PGTABLE_QUIRK_ARM_OUTER_WBWA: Override the outer-cacheability * attributes set in the TCR for a non-coherent page-table walker. + * + * IO_PGTABLE_QUIRK_ARM_HD: Enables dirty tracking in stage 1 pagetable. */ #define IO_PGTABLE_QUIRK_ARM_NS BIT(0) #define IO_PGTABLE_QUIRK_NO_PERMS BIT(1) @@ -92,6 +94,7 @@ struct io_pgtable_cfg { #define IO_PGTABLE_QUIRK_ARM_MTK_TTBR_EXT BIT(4) #define IO_PGTABLE_QUIRK_ARM_TTBR1 BIT(5) #define IO_PGTABLE_QUIRK_ARM_OUTER_WBWA BIT(6) + #define IO_PGTABLE_QUIRK_ARM_HD BIT(7) unsigned long quirks; unsigned long pgsize_bitmap; unsigned int ias; |