1*57fc7323SHuacai Chen /* SPDX-License-Identifier: GPL-2.0 */ 2*57fc7323SHuacai Chen /* 3*57fc7323SHuacai Chen * Copyright (C) 2020-2022 Loongson Technology Corporation Limited 4*57fc7323SHuacai Chen */ 5*57fc7323SHuacai Chen #ifndef __ASM_DMA_H 6*57fc7323SHuacai Chen #define __ASM_DMA_H 7*57fc7323SHuacai Chen 8*57fc7323SHuacai Chen #define MAX_DMA_ADDRESS PAGE_OFFSET 9*57fc7323SHuacai Chen #define MAX_DMA32_PFN (1UL << (32 - PAGE_SHIFT)) 10*57fc7323SHuacai Chen 11*57fc7323SHuacai Chen #endif 12