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Correct calculation of length for dma segments in iommu_dmamap_load().

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eeh 2000-06-22 18:18:19 +00:00
parent 973ddee4e5
commit d24721788a
1 changed files with 4 additions and 4 deletions
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8
sys/arch/sparc64/dev/iommu.c
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@ -1,4 +1,4 @@
/* $NetBSD: iommu.c,v 1.15 2000/06/19 23:30:33 eeh Exp $ */
/* $NetBSD: iommu.c,v 1.16 2000/06/22 18:18:19 eeh Exp $ */
/*
* Copyright (c) 1999, 2000 Matthew R. Green
@ -124,7 +124,6 @@
#include <machine/bus.h>
#include <sparc64/sparc64/cache.h>
#include <sparc64/sparc64/vaddrs.h>
#include <sparc64/dev/iommureg.h>
#include <sparc64/dev/iommuvar.h>
@ -510,7 +509,7 @@ iommu_dvmamap_load(t, is, map, buf, buflen, p, flags)
map->dm_mapsize = buflen;
map->dm_nsegs = 1;
map->dm_segs[0].ds_addr = dvmaddr + (vaddr & PGOFSET);
map->dm_segs[0].ds_len = sgsize;
map->dm_segs[0].ds_len = buflen;
if (p != NULL)
pmap = p->p_vmspace->vm_map.pmap;
@ -571,7 +570,8 @@ iommu_dvmamap_unload(t, is, map)
map, (long)addr, (long)len));
iommu_remove(is, addr, len);
dvmaddr = (map->dm_segs[0].ds_addr & ~PGOFSET);
sgsize = map->dm_segs[0].ds_len;
sgsize = round_page(map->dm_segs[0].ds_len +
((int)map->dm_segs[0].ds_addr & PGOFSET));
/* Mark the mappings as invalid. */
map->dm_mapsize = 0;