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[XenPPC] [pushed] [ppc] Blow away the ERAT in before changing HID4 and t

from [jimix]

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Subject:	[XenPPC] [pushed] [ppc] Blow away the ERAT in before changing HID4 and the 970 UM suggests
From:	jimix@xxxxxxxxxxxxxx
Date:	Fri, 19 May 2006 07:05:09 -0400
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changeset:   10293:d4ae28178796b513975e06c74f5828ab27b07a13
user:        jimix@xxxxxxxxxxxxxxxxxxxxx
date:        Thu May 18 13:59:05 2006 -0400
files:       xen/arch/ppc/ppc64/io.S
description:
[ppc] Blow away the ERAT in before changing HID4 and the 970 UM suggests


diff -r 362e8769dba11053cc7d26ec9796698ac4219f93 -r 
d4ae28178796b513975e06c74f5828ab27b07a13 xen/arch/ppc/ppc64/io.S
--- a/xen/arch/ppc/ppc64/io.S   Thu May 18 13:58:17 2006 -0400
+++ b/xen/arch/ppc/ppc64/io.S   Thu May 18 13:59:05 2006 -0400
@@ -50,17 +50,17 @@
        li r6, 0x100
        sldi r6, r6, 32
        or r5, r9, r6
+       tlbiel \addr /* invalidate the ERAT entry */
        sync
        mtspr SPRN_HID4, r5
-       tlbiel \addr /* invalidate the ERAT entry */
        isync
 .endm
 
 .macro ENABLE_DCACHE addr
        /* re-zero HID4.RM_CI */
+       tlbiel \addr /* invalidate the ERAT entry */
        sync
        mtspr SPRN_HID4, r9
-       tlbiel \addr /* invalidate the ERAT entry */
        isync
 
        /* re-enable interrupts */



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