From: chuck <chuck@openbsd.org>
Date: Fri, 12 Jan 1996 22:02:15 +0000 (+0000)
Subject: dmamatch never added in the offset for the dma registers to the VA,
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=20a3de196d70a9b241689843dc2cf0a325bf1d60;p=openbsd

dmamatch never added in the offset for the dma registers to the VA,
and thus probed the wrong address on the 4/300 (but it worked because
it was probing the esp0 registers!).

now that bus_tmp() adds the offset in for us [as of obio 1.15] i
discoved that a byte access to the dma registers is not allowed.
so, i've change probeget to use a word access.
---

diff --git a/sys/arch/sparc/dev/dma.c b/sys/arch/sparc/dev/dma.c
index 5a96cd4bf84..54be0c4fdf8 100644
--- a/sys/arch/sparc/dev/dma.c
+++ b/sys/arch/sparc/dev/dma.c
@@ -121,7 +121,7 @@ dmamatch(parent, vcf, aux)
 	if (ca->ca_bustype == BUS_SBUS)
 		return (1);
 	ra->ra_len = NBPG;
-	return (probeget(ra->ra_vaddr, 1) != -1);
+	return (probeget(ra->ra_vaddr, 4) != -1);
 }
 
 /*