Module Name:    src
Committed By:   riastradh
Date:           Mon Aug 27 14:20:41 UTC 2018

Modified Files:
        src/sys/external/bsd/drm2/include/linux: fence.h
        src/sys/external/bsd/drm2/linux: linux_fence.c

Log Message:
Make extremely noisy fence trace output conditional.


To generate a diff of this commit:
cvs rdiff -u -r1.14 -r1.15 src/sys/external/bsd/drm2/include/linux/fence.h
cvs rdiff -u -r1.6 -r1.7 src/sys/external/bsd/drm2/linux/linux_fence.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/include/linux/fence.h
diff -u src/sys/external/bsd/drm2/include/linux/fence.h:1.14 src/sys/external/bsd/drm2/include/linux/fence.h:1.15
--- src/sys/external/bsd/drm2/include/linux/fence.h:1.14	Mon Aug 27 14:01:01 2018
+++ src/sys/external/bsd/drm2/include/linux/fence.h	Mon Aug 27 14:20:41 2018
@@ -1,4 +1,4 @@
-/*	$NetBSD: fence.h,v 1.14 2018/08/27 14:01:01 riastradh Exp $	*/
+/*	$NetBSD: fence.h,v 1.15 2018/08/27 14:20:41 riastradh Exp $	*/
 
 /*-
  * Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -97,6 +97,8 @@ struct fence_cb {
 #define	fence_wait_any_timeout	linux_fence_wait_any_timeout
 #define	fence_wait_timeout	linux_fence_wait_timeout
 
+extern int	linux_fence_trace;
+
 void	fence_init(struct fence *, const struct fence_ops *, spinlock_t *,
 	    unsigned, unsigned);
 void	fence_destroy(struct fence *);
@@ -130,10 +132,12 @@ FENCE_TRACE(struct fence *f, const char 
 {
 	va_list va;
 
-	va_start(va, fmt);
-	printf("fence %u@%u: ", f->context, f->seqno);
-	vprintf(fmt, va);
-	va_end(va);
+	if (__predict_false(linux_fence_trace)) {
+		va_start(va, fmt);
+		printf("fence %u@%u: ", f->context, f->seqno);
+		vprintf(fmt, va);
+		va_end(va);
+	}
 }
 
 #endif	/* _LINUX_FENCE_H_ */

Index: src/sys/external/bsd/drm2/linux/linux_fence.c
diff -u src/sys/external/bsd/drm2/linux/linux_fence.c:1.6 src/sys/external/bsd/drm2/linux/linux_fence.c:1.7
--- src/sys/external/bsd/drm2/linux/linux_fence.c:1.6	Mon Aug 27 14:13:16 2018
+++ src/sys/external/bsd/drm2/linux/linux_fence.c	Mon Aug 27 14:20:41 2018
@@ -1,4 +1,4 @@
-/*	$NetBSD: linux_fence.c,v 1.6 2018/08/27 14:13:16 riastradh Exp $	*/
+/*	$NetBSD: linux_fence.c,v 1.7 2018/08/27 14:20:41 riastradh Exp $	*/
 
 /*-
  * Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: linux_fence.c,v 1.6 2018/08/27 14:13:16 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: linux_fence.c,v 1.7 2018/08/27 14:20:41 riastradh Exp $");
 
 #include <sys/atomic.h>
 #include <sys/condvar.h>
@@ -44,6 +44,15 @@ __KERNEL_RCSID(0, "$NetBSD: linux_fence.
 #include <linux/spinlock.h>
 
 /*
+ * linux_fence_trace
+ *
+ *	True if we print FENCE_TRACE messages, false if not.  These are
+ *	extremely noisy, too much even for AB_VERBOSE and AB_DEBUG in
+ *	boothowto.
+ */
+int	linux_fence_trace = 0;
+
+/*
  * fence_referenced_p(fence)
  *
  *	True if fence has a positive reference count.  True after

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