xnu-344.26.tar.gz

[apple/xnu.git] / osfmk / ppc / AltiAssist.s

diff --git a/osfmk/ppc/AltiAssist.s b/osfmk/ppc/AltiAssist.s
index 540a232b99444118e2ccf0fc67c1d58bde1aeb92..5d194389b713767e0ed75b15cad2e360e89689c1 100644 (file)
--- a/osfmk/ppc/AltiAssist.s
+++ b/osfmk/ppc/AltiAssist.s
@@ -3,22 +3,19 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
  * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -39,6 +36,8 @@
 #include <mach/machine/vm_param.h>
 #include <assym.s>
 
+#define kernAccess 31
+
 ;
 ;
 ;                      General stuff what happens here:
@@ -69,7 +68,11 @@
 
 LEXT(AltivecAssist)
 
+                       mfmsr           r20                                                     ; Get the current MSR
                        li                      r10,emvr0                                       ; Point to the vector savearea
+                       oris            r20,r20,hi16(MASK(MSR_VEC))     ; Turn on vector
+                       mtmsr           r20                                                     ; Turn on vector
+                       isync
                        
                        li                      r11,emvr1                                       ; Another savearea
                        stvxl           v0,r10,r2                                       ; Save V0