diff options
Diffstat (limited to 'sys/arch/alpha')
| -rw-r--r-- | sys/arch/alpha/include/bus.h | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/sys/arch/alpha/include/bus.h b/sys/arch/alpha/include/bus.h index 0f7d4a1c183..3fd5bdc6724 100644 --- a/sys/arch/alpha/include/bus.h +++ b/sys/arch/alpha/include/bus.h @@ -1,4 +1,4 @@ -/* $OpenBSD: bus.h,v 1.15 2001/11/05 17:25:57 art Exp $ */ +/* $OpenBSD: bus.h,v 1.16 2002/03/07 18:08:08 jason Exp $ */ /* $NetBSD: bus.h,v 1.10 1996/12/02 22:19:32 cgd Exp $ */ /* @@ -408,14 +408,17 @@ struct alpha_bus_space { /* * Flags used in various bus DMA methods. */ -#define BUS_DMA_WAITOK 0x00 /* safe to sleep (pseudo-flag) */ -#define BUS_DMA_NOWAIT 0x01 /* not safe to sleep */ -#define BUS_DMA_ALLOCNOW 0x02 /* perform resource allocation now */ -#define BUS_DMA_COHERENT 0x04 /* hint: map memory DMA coherent */ -#define BUS_DMA_BUS1 0x10 /* placeholders for bus functions... */ -#define BUS_DMA_BUS2 0x20 -#define BUS_DMA_BUS3 0x40 -#define BUS_DMA_BUS4 0x80 +#define BUS_DMA_WAITOK 0x000 /* safe to sleep (pseudo-flag) */ +#define BUS_DMA_NOWAIT 0x001 /* not safe to sleep */ +#define BUS_DMA_ALLOCNOW 0x002 /* perform resource allocation now */ +#define BUS_DMA_COHERENT 0x004 /* hint: map memory DMA coherent */ +#define BUS_DMA_BUS1 0x010 /* placeholders for bus functions... */ +#define BUS_DMA_BUS2 0x020 +#define BUS_DMA_BUS3 0x040 +#define BUS_DMA_BUS4 0x080 +#define BUS_DMA_STREAMING 0x100 /* hint: sequential, unidirectional */ +#define BUS_DMA_READ 0x200 /* mapping is device -> memory only */ +#define BUS_DMA_WRITE 0x400 /* mapping is memory -> device only */ /* * Private flags stored in the DMA map. |