[LV-k25-commit] kernel-2.5/arch/vax/kernel cpu_ka43.c,1.24,1.25

[Jan-Benedict G. <jb...@us...>]

Update of /cvsroot/linux-vax/kernel-2.5/arch/vax/kernel
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv25835

Modified Files:
	cpu_ka43.c 
Log Message:
- Enabling KA43's cache is as easy as, aem, enabling it.
- Performance increases dramatically, you can even feel it while it's
  scrolling it's boot-up text:

			| Speed/1BogoMIPS	| LoopsPerJiffie
	----------------+-----------------------+----------------
	 Cache off	| 0.96			|  4800
	 Cache on	| 8.80			| 44032


			| Speed factor	| Speed gain
	----------------+---------------+------------
	 BogoMIPS	| 9.167		| 816.7%
	 LoopsPerJiffie	| 9.173		| 817.3%

- Impressive artwork, eh? 8-)


Index: cpu_ka43.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.5/arch/vax/kernel/cpu_ka43.c,v
retrieving revision 1.24
retrieving revision 1.25
diff -u -d -r1.24 -r1.25
--- cpu_ka43.c	25 Apr 2005 22:25:05 -0000	1.24
+++ cpu_ka43.c	26 Apr 2005 22:37:50 -0000	1.25
@@ -2,7 +2,7 @@
  * Copyright (C) 2000  Kenn Humborg
  *
  * This file contains generic machine vector handlers for the
- * KA42 and KA43 CPUs in the RIGEL-based VAXstation 3100
+ * KA43 CPU in the RIGEL-based VAXstation 3100
  *
  * 2000/04/01 Mattias Nordlund
  *            Fixed the cache initializing, added the functions
@@ -93,7 +93,7 @@
 
 static void ka43_cache_enable(volatile unsigned int *creg_addr)
 {
-	volatile char *membase = (void*)0x80000000;	/* Physical 0x00000000 */
+	volatile char *membase = (void *) 0x80000000;	/* Physical 0x00000000 */
 	int i, val;
 
 	/* Enable primary cache */
@@ -114,11 +114,8 @@
 	 * it and enable again.
 	 */
 	ka43_cache_disable(ka43_creg_addr);
-#warning KA43 does not enable caches again!
-#if 0
 	ka43_cache_clear(ka43_ctag_addr);
 	ka43_cache_enable(ka43_creg_addr);
-#endif
 }
 
 /*