d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Don't forget to set the address of the next descriptor to 0 when we're

Browse Source 
zeroing a physical page, or we could end up re-zeroing portions of
memory we have zeroed before, which is clearly not wanted.
This commit is contained in:
Olivier Houchard 2006-02-04 18:01:15 +00:00
parent 1107d45356
commit 0cc56a19e1
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
sys/arm/xscale/i80321/i80321_aau.c
View File

@ -183,6 +183,7 @@ aau_bzero(void *dst, int len, int flags)
desc = sc->aauring[0].desc;
if (flags & IS_PHYSICAL) {
desc->local_addr = (vm_paddr_t)dst;
desc->next_desc = 0;
desc->count = len;
desc->descr_ctrl = 2 << 1 | 1 << 31; /* Fill, enable dest write */
bus_dmamap_sync(sc->dmatag, sc->aauring[0].map,