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define a "BUS_SPACE_MAP_PREFETCHABLE" flag which basically means that

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device accesses are idempotent (but should not be cached by the CPU)
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drochner 2000-01-25 22:26:49 +00:00
parent 8eb798e603
commit c0d973b9ae
1 changed files with 2 additions and 1 deletions
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3
sys/arch/mvme68k/include/bus_space.h
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@ -1,4 +1,4 @@
/* $NetBSD: bus_space.h,v 1.3 1999/04/10 14:06:27 drochner Exp $ */
/* $NetBSD: bus_space.h,v 1.4 2000/01/25 22:26:49 drochner Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
@ -105,6 +105,7 @@ typedef u_long bus_space_handle_t;
#define BUS_SPACE_MAP_CACHEABLE 0x01
#define BUS_SPACE_MAP_LINEAR 0x02
#define BUS_SPACE_MAP_PREFETCHABLE 0x04
/*
* Allocation and deallocation operations.