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/perfmon_kernel.h

@@ -0,0 +1,36 @@
+/* ++++++++++
+	File:			perfmon_kernel.h
+	Description:	kernel mode interface to performance counters and time stamp 
+					registers of 586 and 686 CPUs
+
+	DO NOT use these functions in the production code !!! 
+	This interface WILL BE CHANGED in the next releases.	
+
+	Copyright (c) 1998 by Be Incorporated.  All Rights Reserved.
++++++ */
+
+
+#ifndef	_PERFMON_KERNEL_H
+#define	_PERFMON_KERNEL_H
+
+#include <SupportDefs.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if __INTEL__
+
+extern _IMPEXP_KERNEL 		uint64	read_msr(uint32 msr); 
+extern _IMPEXP_KERNEL		void		write_msr(uint32 msr, uint64 val); 
+extern _IMPEXP_KERNEL 		uint64	read_pmc(uint32 pmc); 
+extern _IMPEXP_KERNEL 		uint64	read_tsc(void); 
+
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif