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| author | Robin Murphy <robin.murphy@arm.com> | 2020-06-24 11:24:51 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-07-08 21:37:50 +0100 |
| commit | 976492922a6a9c06f6f61436848adf2f03702e5c (patch) | |
| tree | d99ac6c58b3e7cc81a8c19cf63845047d0a136e5 /drivers/iommu/arm-smmu-impl.c | |
| parent | ecd7274fb4cd2d6c035a52d59ca3d6ec936a07be (diff) | |
| download | linux-976492922a6a9c06f6f61436848adf2f03702e5c.tar.bz2 | |
iommu/arm-smmu: Update impl quirks comment
The comment about implementation and integration quirks being
mutually-exclusive is out of date, and in fact the code is already
structured for the case it anticipates, so document that properly.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/1e742177e084621f3454fbaf768325a6c215656a.1592994291.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/iommu/arm-smmu-impl.c')
| -rw-r--r-- | drivers/iommu/arm-smmu-impl.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/iommu/arm-smmu-impl.c b/drivers/iommu/arm-smmu-impl.c index c75b9d957b70..1fb4bb994dbf 100644 --- a/drivers/iommu/arm-smmu-impl.c +++ b/drivers/iommu/arm-smmu-impl.c @@ -153,10 +153,9 @@ struct arm_smmu_device *arm_smmu_impl_init(struct arm_smmu_device *smmu) const struct device_node *np = smmu->dev->of_node; /* - * We will inevitably have to combine model-specific implementation - * quirks with platform-specific integration quirks, but everything - * we currently support happens to work out as straightforward - * mutually-exclusive assignments. + * Set the impl for model-specific implementation quirks first, + * such that platform integration quirks can pick it up and + * inherit from it if necessary. */ switch (smmu->model) { case ARM_MMU500: @@ -168,6 +167,7 @@ struct arm_smmu_device *arm_smmu_impl_init(struct arm_smmu_device *smmu) break; } + /* This is implicitly MMU-400 */ if (of_property_read_bool(np, "calxeda,smmu-secure-config-access")) smmu->impl = &calxeda_impl; |