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Remove duplicate code in iommu_dvmamap_sync.

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This commit is contained in:
petrov 2002-10-24 23:24:01 +00:00
parent 53db780200
commit 45a2f80742
1 changed files with 7 additions and 43 deletions
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50
sys/arch/sparc64/dev/iommu.c
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@ -1,4 +1,4 @@
/* $NetBSD: iommu.c,v 1.61 2002/10/16 11:05:11 martin Exp $ */
/* $NetBSD: iommu.c,v 1.62 2002/10/24 23:24:01 petrov Exp $ */
/*
* Copyright (c) 2001, 2002 Eduardo Horvath
@ -915,29 +915,24 @@ iommu_dvmamap_sync(t, sb, map, offset, len, ops)
* We only support one DMA segment; supporting more makes this code
* too unwieldy.
*/
#ifdef DIAGNOSTIC
if (map->dm_nsegs > 1)
panic("iommu_dvmamap_sync: %d segments", map->dm_nsegs);
#endif
if (ops & BUS_DMASYNC_PREREAD) {
DPRINTF(IDB_SYNC,
("iommu_dvmamap_sync: syncing va %p len %lu "
"BUS_DMASYNC_PREREAD\n", (void *)(u_long)va, (u_long)len));
DPRINTF(IDB_SYNC,
("iommu_dvmamap_sync: syncing va %p len %lu "
"ops 0x%x\n", (void *)(u_long)va, (u_long)len, ops));
if (ops & (BUS_DMASYNC_PREREAD | BUS_DMASYNC_POSTWRITE)) {
/* Nothing to do */;
}
if (ops & BUS_DMASYNC_POSTREAD) {
if (ops & (BUS_DMASYNC_POSTREAD | BUS_DMASYNC_PREWRITE)) {
#ifdef DIAGNOSTIC
if (va < is->is_dvmabase || va >= is->is_dvmaend)
panic("iommu_dvmamap_sync: invalid dva %lx", va);
#endif
tte = is->is_tsb[IOTSBSLOT(va, is->is_tsbsize)];
DPRINTF(IDB_SYNC,
("iommu_dvmamap_sync: syncing va %p len %lu "
"BUS_DMASYNC_POSTREAD\n", (void *)(u_long)va, (u_long)len));
/* if we have a streaming buffer, flush it here first */
if ((tte & IOTTE_STREAM) && sb->sb_flush) {
vaend = (va + len + PGOFSET) & ~PGOFSET;
@ -952,37 +947,6 @@ iommu_dvmamap_sync(t, sb, map, offset, len, ops)
iommu_strbuf_flush_done(sb);
}
}
if (ops & BUS_DMASYNC_PREWRITE) {
#ifdef DIAGNOSTIC
if (va < is->is_dvmabase || va >= is->is_dvmaend)
panic("iommu_dvmamap_sync: invalid dva %lx", va);
#endif
tte = is->is_tsb[IOTSBSLOT(va, is->is_tsbsize)];
DPRINTF(IDB_SYNC,
("iommu_dvmamap_sync: syncing va %p len %lu "
"BUS_DMASYNC_PREWRITE\n", (void *)(u_long)va, (u_long)len));
/* if we have a streaming buffer, flush it here first */
if ((tte & IOTTE_STREAM) && sb->sb_flush) {
vaend = (va + len + PGOFSET) & ~PGOFSET;
for (va &= ~PGOFSET; va <= vaend; va += NBPG) {
DPRINTF(IDB_BUSDMA,
("iommu_dvmamap_sync: flushing va %p\n",
(void *)(u_long)va));
iommu_strbuf_flush(sb, va);
}
iommu_strbuf_flush_done(sb);
}
}
if (ops & BUS_DMASYNC_POSTWRITE) {
DPRINTF(IDB_SYNC,
("iommu_dvmamap_sync: syncing va %p len %lu "
"BUS_DMASYNC_POSTWRITE\n", (void *)(u_long)va, (u_long)len));
/* Nothing to do */;
}
}
int