diff options
Diffstat (limited to 'include/linux/iova.h')
| -rw-r--r-- | include/linux/iova.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/iova.h b/include/linux/iova.h index 3277f4711349..19e81d5ccb6d 100644 --- a/include/linux/iova.h +++ b/include/linux/iova.h @@ -34,6 +34,11 @@ struct iova_domain { unsigned long dma_32bit_pfn; }; +static inline unsigned long iova_size(struct iova *iova) +{ + return iova->pfn_hi - iova->pfn_lo + 1; +} + struct iova *alloc_iova_mem(void); void free_iova_mem(struct iova *iova); void free_iova(struct iova_domain *iovad, unsigned long pfn); |