diff options
Diffstat (limited to 'arch/x86/kernel/pci-dma.c')
| -rw-r--r-- | arch/x86/kernel/pci-dma.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c new file mode 100644 index 00000000000..f1c24d8e794 --- /dev/null +++ b/arch/x86/kernel/pci-dma.c @@ -0,0 +1,14 @@ +#include <linux/dma-mapping.h> + +int dma_set_mask(struct device *dev, u64 mask) +{ + if (!dev->dma_mask || !dma_supported(dev, mask)) + return -EIO; + + *dev->dma_mask = mask; + + return 0; +} +EXPORT_SYMBOL(dma_set_mask); + + |