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iommu/arm-smmu: Convert to iommu_capable() API function 

Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
hifive-unleashed-5.1
Joerg Roedel 2014-09-05 10:49:34 +02:00
parent ab63648186
commit 1fd0c775a5
1 changed files with 9 additions and 10 deletions
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19
drivers/iommu/arm-smmu.c
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@ -1526,20 +1526,19 @@ static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain,
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 void arm_smmu_remove_device(struct device *dev)
}
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 @@ static const struct iommu_ops arm_smmu_ops = {
.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 |