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-rw-r--r--sys/amd64/amd64/busdma_machdep.c4
-rw-r--r--sys/i386/i386/busdma_machdep.c4
2 files changed, 4 insertions, 4 deletions
diff --git a/sys/amd64/amd64/busdma_machdep.c b/sys/amd64/amd64/busdma_machdep.c
index 321c49e..c9475d5 100644
--- a/sys/amd64/amd64/busdma_machdep.c
+++ b/sys/amd64/amd64/busdma_machdep.c
@@ -598,14 +598,14 @@ _bus_dmamap_load_buffer(bus_dma_tag_t dmat,
* Count the number of bounce pages
* needed in order to complete this transfer
*/
- vaddr = trunc_page((vm_offset_t)buf);
+ vaddr = (vm_offset_t)buf;
vendaddr = (vm_offset_t)buf + buflen;
while (vaddr < vendaddr) {
paddr = pmap_kextract(vaddr);
if (run_filter(dmat, paddr) != 0)
map->pagesneeded++;
- vaddr += PAGE_SIZE;
+ vaddr += (PAGE_SIZE - ((vm_offset_t)vaddr & PAGE_MASK));
}
CTR1(KTR_BUSDMA, "pagesneeded= %d\n", map->pagesneeded);
}
diff --git a/sys/i386/i386/busdma_machdep.c b/sys/i386/i386/busdma_machdep.c
index 383061b..0c76c7a 100644
--- a/sys/i386/i386/busdma_machdep.c
+++ b/sys/i386/i386/busdma_machdep.c
@@ -585,7 +585,7 @@ _bus_dmamap_count_pages(bus_dma_tag_t dmat, bus_dmamap_t map, void *buf,
* Count the number of bounce pages
* needed in order to complete this transfer
*/
- vaddr = trunc_page((vm_offset_t)buf);
+ vaddr = (vm_offset_t)buf;
vendaddr = (vm_offset_t)buf + buflen;
while (vaddr < vendaddr) {
@@ -594,7 +594,7 @@ _bus_dmamap_count_pages(bus_dma_tag_t dmat, bus_dmamap_t map, void *buf,
run_filter(dmat, paddr) != 0) {
map->pagesneeded++;
}
- vaddr += PAGE_SIZE;
+ vaddr += (PAGE_SIZE - ((vm_offset_t)vaddr & PAGE_MASK));
}
CTR1(KTR_BUSDMA, "pagesneeded= %d\n", map->pagesneeded);
}
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