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authorleo <leo@NetBSD.org>2000-04-11 07:12:47 +0000
committerleo <leo@NetBSD.org>2000-04-11 07:12:47 +0000
commit7d08f8e623f1f164c05da76e6ebb74e9fdf88352 (patch)
tree4151579d024c1f43e3070698704ab41040526301 /sys/arch/atari/include
parent9b47c7431da6bafd5eb47f673ad82f644efd19c3 (diff)
Add dummies for barrier methods (copied from i386).
Diffstat (limited to 'sys/arch/atari/include')
-rw-r--r--sys/arch/atari/include/bus.h18
1 files changed, 17 insertions, 1 deletions
diff --git a/sys/arch/atari/include/bus.h b/sys/arch/atari/include/bus.h
index 2ec13d25217..25b65fdbfa0 100644
--- a/sys/arch/atari/include/bus.h
+++ b/sys/arch/atari/include/bus.h
@@ -1,4 +1,4 @@
-/* $NetBSD: bus.h,v 1.21 2000/01/25 22:13:19 drochner Exp $ */
+/* $NetBSD: bus.h,v 1.22 2000/04/11 07:12:47 leo Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -509,6 +509,22 @@ struct atari_bus_space {
#define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
/*
+ * Bus read/write barrier methods.
+ *
+ * void bus_space_barrier __P((bus_space_tag_t tag,
+ * bus_space_handle_t bsh, bus_size_t offset,
+ * bus_size_t len, int flags));
+ *
+ * Note: the Atari does not currently require barriers, but we must
+ * provide the flags to MI code.
+ */
+#define bus_space_barrier(t, h, o, l, f) \
+ ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f)))
+#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
+#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
+
+
+/*
* Flags used in various bus DMA methods.
*/
#define BUS_DMA_WAITOK 0x00 /* safe to sleep (pseudo-flag) */