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| author | Joerg Roedel <jroedel@suse.de> | 2014-09-03 18:34:04 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2014-09-25 15:44:49 +0200 |
| commit | 1aed074869a9cbe0a846ea7b254d8fd9a4a4d31f (patch) | |
| tree | 54b73121409c21112fee7e61dc749d076157cddb /include | |
| parent | 0f33be009b89d2268e94194dc4fd01a7851b6d51 (diff) | |
| download | linux-1aed074869a9cbe0a846ea7b254d8fd9a4a4d31f.tar.gz linux-1aed074869a9cbe0a846ea7b254d8fd9a4a4d31f.tar.bz2 linux-1aed074869a9cbe0a846ea7b254d8fd9a4a4d31f.zip | |
iommu: Convert iommu-caps from define to enum
Allow compile-time type-checking.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/iommu.h | 11 |
1 files changed, 7 insertions, 4 deletions
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; } |