| #ifndef __ASM_SH64_DMA_H | |
| #define __ASM_SH64_DMA_H | |
| /* | |
| * This file is subject to the terms and conditions of the GNU General Public | |
| * License. See the file "COPYING" in the main directory of this archive | |
| * for more details. | |
| * | |
| * include/asm-sh64/dma.h | |
| * | |
| * Copyright (C) 2000, 2001 Paolo Alberelli | |
| * Copyright (C) 2003 Paul Mundt | |
| * | |
| */ | |
| #include <linux/mm.h> | |
| #include <asm/io.h> | |
| #include <asm/pgtable.h> | |
| #define MAX_DMA_CHANNELS 4 | |
| /* | |
| * SH5 can DMA in any memory area. | |
| * | |
| * The static definition is dodgy because it should limit | |
| * the highest DMA-able address based on the actual | |
| * Physical memory available. This is actually performed | |
| * at run time in defining the memory allowed to DMA_ZONE. | |
| */ | |
| #define MAX_DMA_ADDRESS ~(NPHYS_MASK) | |
| #define DMA_MODE_READ 0 | |
| #define DMA_MODE_WRITE 1 | |
| #ifdef CONFIG_PCI | |
| extern int isa_dma_bridge_buggy; | |
| #else | |
| #define isa_dma_bridge_buggy (0) | |
| #endif | |
| #endif /* __ASM_SH64_DMA_H */ |