diff options
| -rw-r--r-- | drivers/iommu/iommu.c | 2 | ||||
| -rw-r--r-- | include/linux/iommu.h | 11 |
2 files changed, 8 insertions, 5 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 0639b9274b11..bc45478e26db 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -948,7 +948,7 @@ phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova) EXPORT_SYMBOL_GPL(iommu_iova_to_phys); int iommu_domain_has_cap(struct iommu_domain *domain, - unsigned long cap) + enum iommu_cap cap) { if (unlikely(domain->ops->domain_has_cap == NULL)) return 0; diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 20f9a527922a..98fc126655ae 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -57,8 +57,11 @@ struct iommu_domain { struct iommu_domain_geometry geometry; }; -#define IOMMU_CAP_CACHE_COHERENCY 0x1 -#define IOMMU_CAP_INTR_REMAP 0x2 /* isolates device intrs */ +enum iommu_cap { + IOMMU_CAP_CACHE_COHERENCY, /* IOMMU can enforce cache coherent DMA + transactions */ + IOMMU_CAP_INTR_REMAP, /* IOMMU supports interrupt isolation */ +}; /* * Following constraints are specifc to FSL_PAMUV1: @@ -155,7 +158,7 @@ extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size); extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova); extern int iommu_domain_has_cap(struct iommu_domain *domain, - unsigned long cap); + enum iommu_cap cap); extern void iommu_set_fault_handler(struct iommu_domain *domain, iommu_fault_handler_t handler, void *token); @@ -305,7 +308,7 @@ static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_ad } static inline int iommu_domain_has_cap(struct iommu_domain *domain, - unsigned long cap) + enum iommu_cap cap) { return 0; } |