iommu/arm-smmu: Convert to iommu_capable() API function
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index a83cc2a..1e0485e 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1526,20 +1526,19 @@
return __pfn_to_phys(pte_pfn(pte)) | (iova & ~PAGE_MASK);
}
-static int arm_smmu_domain_has_cap(struct iommu_domain *domain,
- unsigned long cap)
+static bool arm_smmu_capable(enum iommu_cap cap)
{
- struct arm_smmu_domain *smmu_domain = domain->priv;
- struct arm_smmu_device *smmu = smmu_domain->smmu;
- u32 features = smmu ? smmu->features : 0;
-
switch (cap) {
case IOMMU_CAP_CACHE_COHERENCY:
- return features & ARM_SMMU_FEAT_COHERENT_WALK;
+ /*
+ * Return true here as the SMMU can always send out coherent
+ * requests.
+ */
+ return true;
case IOMMU_CAP_INTR_REMAP:
- return 1; /* MSIs are just memory writes */
+ return true; /* MSIs are just memory writes */
default:
- return 0;
+ return false;
}
}
@@ -1609,6 +1608,7 @@
}
static const struct iommu_ops arm_smmu_ops = {
+ .capable = arm_smmu_capable,
.domain_init = arm_smmu_domain_init,
.domain_destroy = arm_smmu_domain_destroy,
.attach_dev = arm_smmu_attach_dev,
@@ -1616,7 +1616,6 @@
.map = arm_smmu_map,
.unmap = arm_smmu_unmap,
.iova_to_phys = arm_smmu_iova_to_phys,
- .domain_has_cap = arm_smmu_domain_has_cap,
.add_device = arm_smmu_add_device,
.remove_device = arm_smmu_remove_device,
.pgsize_bitmap = (SECTION_SIZE |