Author: kib
Date: Tue Jul 17 19:00:46 2012
New Revision: 238555
URL: http://svn.freebsd.org/changeset/base/238555
Log:
MFC r237203,r237223 (by phk):
Fix writes to the video memory of the VGA to always use half-word sized
writes.
Approved by: re (hrs), phk
Modified:
stable/9/sys/dev/fb/fbreg.h
Directory Properties:
stable/9/sys/ (props changed)
stable/9/sys/dev/ (props changed)
Modified: stable/9/sys/dev/fb/fbreg.h
==============================================================================
--- stable/9/sys/dev/fb/fbreg.h Tue Jul 17 18:04:34 2012 (r238554)
+++ stable/9/sys/dev/fb/fbreg.h Tue Jul 17 19:00:46 2012 (r238555)
@@ -35,9 +35,17 @@
/* some macros */
#if defined(__amd64__) || defined(__i386__)
-#define bcopy_io(s, d, c) bcopy((void *)(s), (void *)(d), (c))
-#define bcopy_toio(s, d, c) bcopy((void *)(s), (void *)(d), (c))
-#define bcopy_fromio(s, d, c) bcopy((void *)(s), (void *)(d), (c))
+
+static __inline void
+copyw(uint16_t *src, uint16_t *dst, size_t size)
+{
+ size >>= 1;
+ while (size--)
+ *dst++ = *src++;
+}
+#define bcopy_io(s, d, c) copyw((void*)(s), (void*)(d), (c))
+#define bcopy_toio(s, d, c) copyw((void*)(s), (void*)(d), (c))
+#define bcopy_fromio(s, d, c) copyw((void*)(s), (void*)(d), (c))
#define bzero_io(d, c) bzero((void *)(d), (c))
#define fill_io(p, d, c) fill((p), (void *)(d), (c))
#define fillw_io(p, d, c) fillw((p), (void *)(d), (c))
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