diff options
Diffstat (limited to 'drivers/parisc')
| -rw-r--r-- | drivers/parisc/sba_iommu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index 374b9199878d..ecd870087a3d 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -28,6 +28,12 @@ #include <linux/dma-map-ops.h> #include <linux/scatterlist.h> #include <linux/iommu-helper.h> +/* + * The semantics of 64 register access on 32bit systems can't be guaranteed + * by the C standard, we hope the _lo_hi() macros defining readq and writeq + * here will behave as expected. + */ +#include <linux/io-64-nonatomic-lo-hi.h> #include <asm/byteorder.h> #include <asm/io.h> |