| // SPDX-License-Identifier: GPL-2.0 | |
| #include <linux/dma-direct.h> | |
| dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr) | |
| { | |
| return paddr | 0x80000000; | |
| } | |
| phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr) | |
| { | |
| #if defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT) | |
| if (dma_addr > 0x8fffffff) | |
| return dma_addr; | |
| return dma_addr & 0x0fffffff; | |
| #else | |
| return dma_addr & 0x7fffffff; | |
| #endif | |
| } |