| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (C) 2006 Atmark Techno, Inc. |
| */ |
| |
| #ifndef _ASM_MICROBLAZE_DMA_H |
| #define _ASM_MICROBLAZE_DMA_H |
| |
| #ifndef CONFIG_MMU |
| /* we don't have dma address limit. define it as zero to be |
| * unlimited. */ |
| #define MAX_DMA_ADDRESS (0) |
| #else |
| /* Virtual address corresponding to last available physical memory address. */ |
| #define MAX_DMA_ADDRESS (CONFIG_KERNEL_START + memory_size - 1) |
| #endif |
| |
| #ifdef CONFIG_PCI |
| extern int isa_dma_bridge_buggy; |
| #else |
| #define isa_dma_bridge_buggy (0) |
| #endif |
| |
| #endif /* _ASM_MICROBLAZE_DMA_H */ |
