Protect dma operations with splvm instead of splhigh, that's faster than

splbio and won't delay clock interrupts.

diff --git a/sys/arch/hp300/dev/dma.c b/sys/arch/hp300/dev/dma.c
index 4a3ff45..189dfc1 100644 (file)
--- 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",