diff options
| author | David Gwynne <dlg@cvs.openbsd.org> | 2017-05-08 00:27:46 +0000 |
|---|---|---|
| committer | David Gwynne <dlg@cvs.openbsd.org> | 2017-05-08 00:27:46 +0000 |
| commit | e9fa087f6298b91db0dbe730065219a569ed30c7 (patch) | |
| tree | 6966b785c7dbb463002559e8ccbc305d4fbffd1a /sys/arch/landisk | |
| parent | c2f5797256434d3b2a71bc0ea895cd9248f151f3 (diff) | |
add a BUS_DMA_64BIT flag to bus_dma on all our archs.
this is so drivers can advertise that they can handle 64 dma addresses
to the platform. it may choose to handle dmamaps differently based
on this flag.
tweaks and ok tom@
ok kettenis@
Diffstat (limited to 'sys/arch/landisk')
| -rw-r--r-- | sys/arch/landisk/include/bus.h | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/sys/arch/landisk/include/bus.h b/sys/arch/landisk/include/bus.h index 5514c446910..ac2a21e66f1 100644 --- a/sys/arch/landisk/include/bus.h +++ b/sys/arch/landisk/include/bus.h @@ -1,4 +1,4 @@ -/* $OpenBSD: bus.h,v 1.8 2011/03/23 16:54:35 pirofti Exp $ */ +/* $OpenBSD: bus.h,v 1.9 2017/05/08 00:27:45 dlg Exp $ */ /* $NetBSD: bus.h,v 1.1 2006/09/01 21:26:18 uwe Exp $ */ /*- @@ -421,19 +421,20 @@ struct _bus_space { /* * Flags used in various bus DMA methods. */ -#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 /* map memory to not require sync */ -#define BUS_DMA_STREAMING 0x008 /* hint: sequential, unidirectional */ -#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_READ 0x100 /* mapping is device -> memory only */ -#define BUS_DMA_WRITE 0x200 /* mapping is memory -> device only */ -#define BUS_DMA_NOCACHE 0x400 /* hint: map non-cached memory */ -#define BUS_DMA_ZERO 0x800 /* zero memory in dmamem_alloc */ +#define BUS_DMA_WAITOK 0x0000 /* safe to sleep (pseudo-flag) */ +#define BUS_DMA_NOWAIT 0x0001 /* not safe to sleep */ +#define BUS_DMA_ALLOCNOW 0x0002 /* perform resource allocation now */ +#define BUS_DMA_COHERENT 0x0004 /* map memory to not require sync */ +#define BUS_DMA_STREAMING 0x0008 /* hint: sequential, unidirectional */ +#define BUS_DMA_BUS1 0x0010 /* placeholders for bus functions... */ +#define BUS_DMA_BUS2 0x0020 +#define BUS_DMA_BUS3 0x0040 +#define BUS_DMA_BUS4 0x0080 +#define BUS_DMA_READ 0x0100 /* mapping is device -> memory only */ +#define BUS_DMA_WRITE 0x0200 /* mapping is memory -> device only */ +#define BUS_DMA_NOCACHE 0x0400 /* hint: map non-cached memory */ +#define BUS_DMA_ZERO 0x0800 /* zero memory in dmamem_alloc */ +#define BUS_DMA_64BIT 0x1000 /* device handles 64bit dva */ /* Forwards needed by prototypes below. */ struct mbuf; |