diff options
Diffstat (limited to 'sys/arch/i386/include/bus.h')
| -rw-r--r-- | sys/arch/i386/include/bus.h | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/sys/arch/i386/include/bus.h b/sys/arch/i386/include/bus.h index 7f65068456f..3ac591f0149 100644 --- a/sys/arch/i386/include/bus.h +++ b/sys/arch/i386/include/bus.h @@ -1,4 +1,4 @@ -/* $OpenBSD: bus.h,v 1.31 2001/11/05 17:25:57 art Exp $ */ +/* $OpenBSD: bus.h,v 1.32 2002/03/07 18:08:08 jason Exp $ */ /* $NetBSD: bus.h,v 1.6 1996/11/10 03:19:25 thorpej Exp $ */ /*- @@ -732,14 +732,17 @@ void bus_space_free __P((bus_space_tag_t t, bus_space_handle_t bsh, /* * 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 */ /* Forwards needed by prototypes below. */ struct mbuf; |