Upgrade to version 4.1 of radeon driver.

Includes some common routines which may be used by other drivers.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8405 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/graphics/common/benaphore.h

@@ -0,0 +1,26 @@
+/*
+	Copyright (c) 2002, Thomas Kurschel
+
+
+	Part of Radeon driver
+		
+	Benaphore definition
+*/
+
+
+#ifndef _BENAPHORE_H
+#define _BENAPHORE_H
+
+
+typedef struct {
+	sem_id	sem;
+	int32	ben;
+} benaphore;
+
+ 
+#define INIT_BEN(x, prefix)	( (x).ben = 0, (x).sem = create_sem(0, #prefix " benaphore"), (x).sem )
+#define ACQUIRE_BEN(x)	if((atomic_add(&(x.ben), 1)) >= 1) acquire_sem(x.sem);
+#define RELEASE_BEN(x)	if((atomic_add(&(x.ben), -1)) > 1) release_sem(x.sem);
+#define	DELETE_BEN(x)	delete_sem(x.sem);
+
+#endif