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Add some extra fields to a dmamap to track what's being mapped.

This commit is contained in:
eeh 2001-02-11 00:05:47 +00:00
parent 3daccde8d4
commit 3e47436b79
1 changed files with 8 additions and 2 deletions
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10
sys/arch/sparc64/include/bus.h
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@ -1,4 +1,4 @@
/* $NetBSD: bus.h,v 1.25 2000/09/22 21:01:55 eeh Exp $ */ /* $NetBSD: bus.h,v 1.26 2001/02/11 00:05:47 eeh Exp $ */
/*- /*-
* Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc. * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
@ -1499,10 +1499,16 @@ struct sparc_bus_dmamap {
* PRIVATE MEMBERS: not for use my machine-independent code. * PRIVATE MEMBERS: not for use my machine-independent code.
*/ */
bus_size_t _dm_size; /* largest DMA transfer mappable */ bus_size_t _dm_size; /* largest DMA transfer mappable */
int _dm_segcnt; /* number of segs this map can map */
bus_size_t _dm_maxsegsz; /* largest possible segment */ bus_size_t _dm_maxsegsz; /* largest possible segment */
bus_size_t _dm_boundary; /* don't cross this */ bus_size_t _dm_boundary; /* don't cross this */
int _dm_segcnt; /* number of segs this map can map */
int _dm_flags; /* misc. flags */ int _dm_flags; /* misc. flags */
#define _DM_TYPE_LOAD 0
#define _DM_TYPE_SEGS 1
#define _DM_TYPE_UIO 2
#define _DM_TYPE_MBUF 3
int _dm_type; /* type of mapping: raw, uio, mbuf, etc */
void *_dm_source; /* source mbuf, uio, etc. needed for unload *///////////////////////
void *_dm_cookie; /* cookie for bus-specific functions */ void *_dm_cookie; /* cookie for bus-specific functions */