| // SPDX-License-Identifier: GPL-2.0 | |
| #include <linux/dma-mapping.h> | |
| #include <linux/export.h> | |
| /* Set this to 1 if there is a HW IOMMU in the system */ | |
| int iommu_detected __read_mostly; | |
| const struct dma_map_ops *dma_ops; | |
| EXPORT_SYMBOL(dma_ops); | |
| #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16) | |
| static int __init dma_init(void) | |
| { | |
| dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES); | |
| return 0; | |
| } | |
| fs_initcall(dma_init); | |
| const struct dma_map_ops *dma_get_ops(struct device *dev) | |
| { | |
| return dma_ops; | |
| } | |
| EXPORT_SYMBOL(dma_get_ops); |