1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/dma-direct.h>
3 
__phys_to_dma(struct device * dev,phys_addr_t paddr)4 dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
5 {
6 	return paddr | 0x80000000;
7 }
8 
__dma_to_phys(struct device * dev,dma_addr_t dma_addr)9 phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr)
10 {
11 #if defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT)
12 	if (dma_addr > 0x8fffffff)
13 		return dma_addr;
14 	return dma_addr & 0x0fffffff;
15 #else
16 	return dma_addr & 0x7fffffff;
17 #endif
18 }
19