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Fix iommu_dvmamap_sync() to use the right address when flushing the

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streaming cache. This bug could have the potential to cause data
corruption on systems with Psycho U2P bridges (Sabre bridges have no
streaming cache).
However, due to the usual driver architecture, it is believed that
corruption did occur only in rare cases (if at all).
This commit is contained in:
Thomas Moestl 2002-10-25 17:31:31 +00:00
parent 6fe6a00661
commit 736b63df0d
1 changed files with 1 additions and 1 deletions
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2
sys/sparc64/sparc64/iommu.c
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@ -744,7 +744,7 @@ iommu_dvmamap_sync(bus_dma_tag_t pt, bus_dma_tag_t dt, struct iommu_state *is,
vm_offset_t va;
vm_size_t len;
va = (vm_offset_t)map->buf;
va = (vm_offset_t)map->start;
len = map->buflen;
if ((op & BUS_DMASYNC_PREREAD) != 0)
membar(Sync);