diff options
| author | Jiri Kosina <jkosina@suse.cz> | 2010-08-10 13:22:08 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2010-08-10 13:22:08 +0200 |
| commit | fb8231a8b139035476f2a8aaac837d0099b66dad (patch) | |
| tree | 2875806beb96ea0cdab292146767a5085721dc6a /include/linux/iommu-helper.h | |
| parent | 426d31071ac476ea62c62656b242930c17b58c00 (diff) | |
| parent | f6cec0ae58c17522a7bc4e2f39dae19f199ab534 (diff) | |
Merge branch 'master' into for-next
Conflicts:
arch/arm/mach-omap1/board-nokia770.c
Diffstat (limited to 'include/linux/iommu-helper.h')
| -rw-r--r-- | include/linux/iommu-helper.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/include/linux/iommu-helper.h b/include/linux/iommu-helper.h index 64d1b638745..86bdeffe43a 100644 --- a/include/linux/iommu-helper.h +++ b/include/linux/iommu-helper.h @@ -1,6 +1,8 @@ #ifndef _LINUX_IOMMU_HELPER_H #define _LINUX_IOMMU_HELPER_H +#include <linux/kernel.h> + static inline unsigned long iommu_device_max_index(unsigned long size, unsigned long offset, u64 dma_mask) @@ -20,7 +22,13 @@ extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size, unsigned long boundary_size, unsigned long align_mask); -extern unsigned long iommu_num_pages(unsigned long addr, unsigned long len, - unsigned long io_page_size); +static inline unsigned long iommu_num_pages(unsigned long addr, + unsigned long len, + unsigned long io_page_size) +{ + unsigned long size = (addr & (io_page_size - 1)) + len; + + return DIV_ROUND_UP(size, io_page_size); +} #endif |