1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/dma-direct.h> 3 #include <linux/export.h> 4 5 /* Set this to 1 if there is a HW IOMMU in the system */ 6 int iommu_detected __read_mostly; 7 8 const struct dma_map_ops *dma_ops; 9 EXPORT_SYMBOL(dma_ops); 10 11 void *arch_dma_alloc(struct device *dev, size_t size, 12 dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs) 13 { 14 return dma_direct_alloc_pages(dev, size, dma_handle, gfp, attrs); 15 } 16 17 void arch_dma_free(struct device *dev, size_t size, void *cpu_addr, 18 dma_addr_t dma_addr, unsigned long attrs) 19 { 20 dma_direct_free_pages(dev, size, cpu_addr, dma_addr, attrs); 21 } 22