diff options
| author | Ashish Mhetre <amhetre@nvidia.com> | 2024-07-24 17:31:32 +0000 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-07-25 13:08:44 +0100 |
| commit | 726d4f528dbc98a84d9ce3c749dfdada3dcdd5ca (patch) | |
| tree | d83ba6bec792f3e9ce5a921fb0f1b1823a56d134 /drivers/iommu | |
| parent | 86c5eac3c4c4a2ee124d202af9a141bd0457ee68 (diff) | |
iommu: arm-smmu: Fix Tegra workaround for PAGE_SIZE mappings
PAGE_SIZE can be 16KB for Tegra which is not supported by MMU-500 on
both Tegra194 and Tegra234. Retain only valid granularities from
pgsize_bitmap which would either be 4KB or 64KB.
Signed-off-by: Ashish Mhetre <amhetre@nvidia.com>
Link: https://lore.kernel.org/r/20240724173132.219978-1-amhetre@nvidia.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c b/drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c index 4b2994b6126d..2fce4f6d4e1b 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c @@ -277,7 +277,7 @@ static int nvidia_smmu_init_context(struct arm_smmu_domain *smmu_domain, */ if (of_device_is_compatible(np, "nvidia,tegra234-smmu") || of_device_is_compatible(np, "nvidia,tegra194-smmu")) { - smmu->pgsize_bitmap = PAGE_SIZE; + smmu->pgsize_bitmap &= GENMASK(PAGE_SHIFT, 0); pgtbl_cfg->pgsize_bitmap = smmu->pgsize_bitmap; } |