diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2008-07-18 21:39:53 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2008-07-18 21:39:53 +0000 |
| commit | cfa10c83301a5f76be1340aeddc6a3512a6dd184 (patch) | |
| tree | c71884a2267556eebdf9165916f6c9b627ed46d2 | |
| parent | f3c04ba24c858c2e8c0185a3d2495d07b918e483 (diff) | |
Protect dma operations with splvm instead of splhigh, that's faster than
splbio and won't delay clock interrupts.
| -rw-r--r-- | sys/arch/hp300/dev/dma.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/sys/arch/hp300/dev/dma.c b/sys/arch/hp300/dev/dma.c index 4a3ff45eb9e..189dfc173ea 100644 --- a/sys/arch/hp300/dev/dma.c +++ b/sys/arch/hp300/dev/dma.c @@ -1,4 +1,4 @@ -/* $OpenBSD: dma.c,v 1.18 2007/11/09 17:46:00 miod Exp $ */ +/* $OpenBSD: dma.c,v 1.19 2008/07/18 21:39:52 miod Exp $ */ /* $NetBSD: dma.c,v 1.19 1997/05/05 21:02:39 thorpej Exp $ */ /* @@ -221,11 +221,7 @@ dmareq(struct dmaqueue *dq) struct dma_softc *sc = &dma_softc; int i, chan, s; -#if 1 - s = splhigh(); /* XXXthorpej */ -#else - s = splbio(); -#endif + s = splvm(); chan = dq->dq_chan; for (i = NDMACHAN - 1; i >= 0; i--) { @@ -294,11 +290,7 @@ dmafree(struct dmaqueue *dq) struct dmaqueue *dn; int chan, s; -#if 1 - s = splhigh(); /* XXXthorpej */ -#else - s = splbio(); -#endif + s = splvm(); #ifdef DEBUG dmatimo[unit] = 0; @@ -566,7 +558,7 @@ dmatimeout(void *arg) struct dma_softc *sc = arg; for (i = 0; i < NDMACHAN; i++) { - s = splbio(); + s = splvm(); if (dmatimo[i]) { if (dmatimo[i] > 1) printf("dma channel %d timeout #%d\n", |