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Reformat x86 bounce buffer synchronization code to reduce indentation. No functional change.

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Approved by:	kib (mentor)
This commit is contained in:
jah 2015-08-14 18:01:40 +00:00
parent 66c058ca9c
commit 07d2b05155
1 changed files with 33 additions and 37 deletions
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70
sys/x86/x86/busdma_bounce.c
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@ -758,47 +758,43 @@ bounce_bus_dmamap_sync(bus_dma_tag_t dmat, bus_dmamap_t map,
{
struct bounce_page *bpage;
if ((bpage = STAILQ_FIRST(&map->bpages)) != NULL) {
/*
* Handle data bouncing. We might also
* want to add support for invalidating
* the caches on broken hardware
*/
CTR4(KTR_BUSDMA, "%s: tag %p tag flags 0x%x op 0x%x "
"performing bounce", __func__, dmat,
dmat->common.flags, op);
if ((bpage = STAILQ_FIRST(&map->bpages)) == NULL)
return;
if ((op & BUS_DMASYNC_PREWRITE) != 0) {
while (bpage != NULL) {
if (bpage->datavaddr != 0) {
bcopy((void *)bpage->datavaddr,
(void *)bpage->vaddr,
bpage->datacount);
} else {
physcopyout(bpage->dataaddr,
(void *)bpage->vaddr,
bpage->datacount);
}
bpage = STAILQ_NEXT(bpage, links);
}
dmat->bounce_zone->total_bounced++;
}
/*
* Handle data bouncing. We might also want to add support for
* invalidating the caches on broken hardware.
*/
CTR4(KTR_BUSDMA, "%s: tag %p tag flags 0x%x op 0x%x "
"performing bounce", __func__, dmat, dmat->common.flags, op);
if ((op & BUS_DMASYNC_POSTREAD) != 0) {
while (bpage != NULL) {
if (bpage->datavaddr != 0) {
bcopy((void *)bpage->vaddr,
(void *)bpage->datavaddr,
bpage->datacount);
} else {
physcopyin((void *)bpage->vaddr,
bpage->dataaddr,
bpage->datacount);
}
bpage = STAILQ_NEXT(bpage, links);
if ((op & BUS_DMASYNC_PREWRITE) != 0) {
while (bpage != NULL) {
if (bpage->datavaddr != 0) {
bcopy((void *)bpage->datavaddr,
(void *)bpage->vaddr, bpage->datacount);
} else {
physcopyout(bpage->dataaddr,
(void *)bpage->vaddr, bpage->datacount);
}
dmat->bounce_zone->total_bounced++;
bpage = STAILQ_NEXT(bpage, links);
}
dmat->bounce_zone->total_bounced++;
}
if ((op & BUS_DMASYNC_POSTREAD) != 0) {
while (bpage != NULL) {
if (bpage->datavaddr != 0) {
bcopy((void *)bpage->vaddr,
(void *)bpage->datavaddr,
bpage->datacount);
} else {
physcopyin((void *)bpage->vaddr,
bpage->dataaddr, bpage->datacount);
}
bpage = STAILQ_NEXT(bpage, links);
}
dmat->bounce_zone->total_bounced++;
}
}