Module Name: src
Committed By: riastradh
Date: Fri Mar 6 12:06:35 UTC 2015
Modified Files:
src/sys/external/bsd/drm2/drm: drm_cache.c
Log Message:
Use x86_mfence explicitly, not membar_sync, just to be clear.
To generate a diff of this commit:
cvs rdiff -u -r1.4 -r1.5 src/sys/external/bsd/drm2/drm/drm_cache.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/external/bsd/drm2/drm/drm_cache.c
diff -u src/sys/external/bsd/drm2/drm/drm_cache.c:1.4 src/sys/external/bsd/drm2/drm/drm_cache.c:1.5
--- src/sys/external/bsd/drm2/drm/drm_cache.c:1.4 Wed Mar 4 18:19:27 2015
+++ src/sys/external/bsd/drm2/drm/drm_cache.c Fri Mar 6 12:06:35 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: drm_cache.c,v 1.4 2015/03/04 18:19:27 riastradh Exp $ */
+/* $NetBSD: drm_cache.c,v 1.5 2015/03/06 12:06:35 riastradh Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: drm_cache.c,v 1.4 2015/03/04 18:19:27 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: drm_cache.c,v 1.5 2015/03/06 12:06:35 riastradh Exp $");
#include <sys/types.h>
#include <sys/xcall.h>
@@ -154,11 +154,12 @@ drm_md_clflush_virt_range(const void *va
clflush_size);
const char *p;
+ /* Support for CLFLUSH implies support for MFENCE. */
KASSERT(drm_md_clflush_finegrained_p());
- membar_sync();
+ x86_mfence();
for (p = start; p < end; p += clflush_size)
drm_x86_clflush(p);
- membar_sync();
+ x86_mfence();
}
#endif /* defined(__i386__) || defined(__x86_64__) */
