diff options
Diffstat (limited to 'arch/arm/plat-omap/include/plat/iommu.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/iommu.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/iommu.h b/arch/arm/plat-omap/include/plat/iommu.h index a1d79ee19250..fa11ee26aca9 100644 --- a/arch/arm/plat-omap/include/plat/iommu.h +++ b/arch/arm/plat-omap/include/plat/iommu.h @@ -111,6 +111,32 @@ struct iommu_platform_data { u32 da_end; }; +/** + * struct iommu_arch_data - omap iommu private data + * @name: name of the iommu device + * @iommu_dev: handle of the iommu device + * + * This is an omap iommu private data object, which binds an iommu user + * to its iommu device. This object should be placed at the iommu user's + * dev_archdata so generic IOMMU API can be used without having to + * utilize omap-specific plumbing anymore. + */ +struct omap_iommu_arch_data { + const char *name; + struct omap_iommu *iommu_dev; +}; + +/** + * dev_to_omap_iommu() - retrieves an omap iommu object from a user device + * @dev: iommu client device + */ +static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev) +{ + struct omap_iommu_arch_data *arch_data = dev->archdata.iommu; + + return arch_data->iommu_dev; +} + /* IOMMU errors */ #define OMAP_IOMMU_ERR_TLB_MISS (1 << 0) #define OMAP_IOMMU_ERR_TRANS_FAULT (1 << 1) |
