diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2019-07-25 13:55:17 +0200 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2019-07-25 13:55:17 +0200 |
| commit | 1717368f640180cab63a870a19d650276172cbfd (patch) | |
| tree | 33476f5afc21613248a054e644a59656d369a4cf /sys/src/9/bcm/dma.c | |
| parent | 706926f8184456e44dd509eb057e59884907b1ec (diff) | |
bcm, bcm64: clean dma destination buffer before issuing dma in case of non cache-line-size aligned buffer
Diffstat (limited to 'sys/src/9/bcm/dma.c')
| -rw-r--r-- | sys/src/9/bcm/dma.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/src/9/bcm/dma.c b/sys/src/9/bcm/dma.c index 81b68199f..07b067259 100644 --- a/sys/src/9/bcm/dma.c +++ b/sys/src/9/bcm/dma.c @@ -174,6 +174,7 @@ dmastart(int chan, int dev, int dir, void *src, void *dst, int len) switch(dir){ case DmaD2M: ctlr->flush = dst; + dmaflush(1, dst, len); ti = Srcdreq | Destinc; cb->sourcead = dmaioaddr(src); cb->destad = dmaaddr(dst); @@ -187,6 +188,7 @@ dmastart(int chan, int dev, int dir, void *src, void *dst, int len) break; case DmaM2M: ctlr->flush = dst; + dmaflush(1, dst, len); dmaflush(1, src, len); ti = Srcinc | Destinc; cb->sourcead = dmaaddr(src); |