diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-sh64/dma.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-sh64/dma.h')
-rw-r--r-- | include/asm-sh64/dma.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/asm-sh64/dma.h b/include/asm-sh64/dma.h new file mode 100644 index 00000000000..e701f39470a --- /dev/null +++ b/include/asm-sh64/dma.h @@ -0,0 +1,41 @@ +#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 */ |