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authorJason Wright <jason@cvs.openbsd.org>2002-03-07 18:08:09 +0000
committerJason Wright <jason@cvs.openbsd.org>2002-03-07 18:08:09 +0000
commit2afe5d52c97872711a9e4d37486cda176ec8cd45 (patch)
tree37b952aa0b88672624bf358ec5bed4014c4cf289 /sys/arch/vax/include/bus.h
parentd4daec323e15eacdfee711f69ae5c11d6fa99b79 (diff)
Clean up BUS_DMA_* flags, and make sure all arch's define:
BUS_DMA_READ, BUS_DMA_WRITE, and BUS_DMA_STREAMING
Diffstat (limited to 'sys/arch/vax/include/bus.h')
-rw-r--r--sys/arch/vax/include/bus.h21
1 files changed, 12 insertions, 9 deletions
diff --git a/sys/arch/vax/include/bus.h b/sys/arch/vax/include/bus.h
index 9d2aefbde17..71285efbb7e 100644
--- a/sys/arch/vax/include/bus.h
+++ b/sys/arch/vax/include/bus.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: bus.h,v 1.3 2001/07/30 14:16:00 art Exp $ */
+/* $OpenBSD: bus.h,v 1.4 2002/03/07 18:08:08 jason Exp $ */
/* $NetBSD: bus.h,v 1.14 2000/06/26 04:56:13 simonb Exp $ */
/*-
@@ -859,14 +859,17 @@ vax_mem_copy_region_4(t, h1, o1, h2, o2, c)
/*
* 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 */
#define VAX_BUS_DMA_SPILLPAGE BUS_DMA_BUS1 /* VS4000 kludge */
/*