1 #include <linux/dma-mapping.h>
3 const struct dma_mapping_ops *dma_ops;
4 EXPORT_SYMBOL(dma_ops);
6 #ifdef CONFIG_IOMMU_DEBUG
7 int panic_on_overflow __read_mostly = 1;
8 int force_iommu __read_mostly = 1;
10 int panic_on_overflow __read_mostly = 0;
11 int force_iommu __read_mostly = 0;
14 int dma_set_mask(struct device *dev, u64 mask)
16 if (!dev->dma_mask || !dma_supported(dev, mask))
19 *dev->dma_mask = mask;
23 EXPORT_SYMBOL(dma_set_mask);