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Erm... Report the buffer as being bounced even when it's the entire buffer,

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or we would end up invalidating the cache line for what we just copied...

Reported by:	thompsa
Pointy at to:	cognet

MFC after:	3 days
This commit is contained in:
cognet 2009-02-04 01:14:06 +00:00
parent 174c989fd9
commit b979733e86
1 changed files with 1 additions and 1 deletions
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2
sys/arm/arm/busdma_machdep.c
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@ -1168,7 +1168,7 @@ _bus_dma_buf_is_in_bp(bus_dmamap_t map, void *buf, int len)
STAILQ_FOREACH(bpage, &map->bpages, links) {
if ((vm_offset_t)buf >= bpage->datavaddr &&
(vm_offset_t)buf + len < bpage->datavaddr +
(vm_offset_t)buf + len <= bpage->datavaddr +
bpage->datacount)
return (1);
}